/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Tsinghua Purple Theme Colors */
    --primary-color: rgb(95, 33, 103);
    --primary-light: rgba(95, 33, 103, 0.1);
    --primary-dark: rgb(75, 25, 83);
    --primary-alpha-20: rgba(95, 33, 103, 0.2);
    --primary-alpha-30: rgba(95, 33, 103, 0.3);

    /* iOS Design System Colors */
    --background: #ffffff;
    --surface: #f5f5f7;
    --surface-secondary: #f2f2f7;
    --surface-tertiary: #ffffff;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --text-tertiary: #a1a1a6;
    --border: #d2d2d7;
    --border-light: #e5e5ea;
    --separator: rgba(60, 60, 67, 0.29);

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 15px 40px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-primary: 0 8px 25px rgba(95, 33, 103, 0.3);

    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Spacing System (8px base unit) */
    --space-1: 0.5rem;
    /* 8px */
    --space-2: 1rem;
    /* 16px */
    --space-3: 1.5rem;
    /* 24px */
    --space-4: 2rem;
    /* 32px */
    --space-5: 2.5rem;
    /* 40px */
    --space-6: 3rem;
    /* 48px */
    --space-8: 4rem;
    /* 64px */
    --space-10: 5rem;
    /* 80px */
    --space-12: 6rem;
    /* 96px */
    --space-16: 8rem;
    /* 128px */

    /* Typography Scale */
    --text-xs: 0.75rem;
    /* 12px */
    --text-sm: 0.875rem;
    /* 14px */
    --text-base: 1rem;
    /* 16px */
    --text-lg: 1.125rem;
    /* 18px */
    --text-xl: 1.25rem;
    /* 20px */
    --text-2xl: 1.5rem;
    /* 24px */
    --text-3xl: 1.875rem;
    /* 30px */
    --text-4xl: 2.25rem;
    /* 36px */
    --text-5xl: 3rem;
    /* 48px */
    --text-6xl: 3.75rem;
    /* 60px */

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line Heights */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* Z-index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

html {
    position: relative;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--background);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: 80px;
    position: relative;
    overflow-x: hidden;
}

/* Container System */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* Main content spacing */
main>section:first-child {
    padding-top: var(--space-6);
}

.container-sm {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container-lg {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* Typography System */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

h1 {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
}

h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-semibold);
}

h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
}

h4 {
    font-size: var(--text-xl);
    font-weight: var(--font-medium);
}

h5 {
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
}

h6 {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
}

p {
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.text-large {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
}

.text-small {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.text-xs {
    font-size: var(--text-xs);
}

.text-sm {
    font-size: var(--text-sm);
}

.text-base {
    font-size: var(--text-base);
}

.text-lg {
    font-size: var(--text-lg);
}

.text-xl {
    font-size: var(--text-xl);
}

.text-2xl {
    font-size: var(--text-2xl);
}

.text-3xl {
    font-size: var(--text-3xl);
}

.text-4xl {
    font-size: var(--text-4xl);
}

.font-light {
    font-weight: var(--font-light);
}

.font-normal {
    font-weight: var(--font-normal);
}

.font-medium {
    font-weight: var(--font-medium);
}

.font-semibold {
    font-weight: var(--font-semibold);
}

.font-bold {
    font-weight: var(--font-bold);
}

/* Button System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--surface);
    color: var(--primary-color);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: none;
    box-shadow: none;
}

.btn-ghost:hover {
    background: var(--surface);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-lg);
    border-radius: var(--radius-lg);
}

.btn-xl {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-xl);
    border-radius: var(--radius-lg);
}

/* Legacy button classes for compatibility */
/* Hover Effect Utilities */
.hover-lift-sm:hover {
    transform: translateY(-1px);
}

.hover-lift-md:hover {
    transform: translateY(-2px);
}

.hover-lift-lg:hover {
    transform: translateY(-4px);
}

.hover-lift-xl:hover {
    transform: translateY(-8px);
}

.interactive {
    transition: var(--transition);
    cursor: pointer;
}

.interactive:hover {
    transform: translateY(-2px);
}

/* Shadow Utilities */
.shadow-hover-primary:hover {
    box-shadow: var(--shadow-primary);
}

.shadow-hover-md:hover {
    box-shadow: var(--shadow-md);
}

.shadow-hover-lg:hover {
    box-shadow: var(--shadow-lg);
}

/* Mobile Layout Utilities */
.mobile-card-padding {
    padding: var(--space-4);
}

.mobile-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-3);
}

.mobile-vertical-controls {
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

/* Navigation System */
.navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100vw !important;
    background: rgba(95, 33, 103, 0.85) !important;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 99999 !important;
    transition: all var(--transition-fast);
    height: 80px !important;
    margin: 0 !important;
    padding: 0 !important;
    box-sizing: border-box !important;
}

.navbar.scrolled {
    background: rgba(95, 33, 103, 0.9);
    backdrop-filter: blur(30px) saturate(200%);
    -webkit-backdrop-filter: blur(30px) saturate(200%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    position: relative;
}

.nav-logo {
    transition: var(--transition);
    cursor: pointer;
}

.nav-logo:hover {
    transform: translateY(-1px);
}

.nav-logo h1 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: white;
    margin: 0;
    line-height: var(--leading-tight);
    transition: var(--transition);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.nav-logo p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    font-weight: var(--font-normal);
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-4);
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: var(--font-medium);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--space-2) var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    border-radius: var(--radius);
    white-space: nowrap;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', sans-serif;
}

.nav-menu a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.nav-menu a.active {
    color: white;
    background: rgba(255, 255, 255, 0.2);
    font-weight: var(--font-semibold);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.nav-menu a.active::after,
.nav-menu a:hover::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 20px;
    height: 2px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-full);
    transform: translateX(-50%) scaleX(1);
    transition: all var(--transition);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 20px;
    height: 2px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-full);
    transform: translateX(-50%) scaleX(0);
    transition: all var(--transition);
}

/* Camera icon for Photos link */
.camera-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
    position: relative;
    margin-right: 6px;
    vertical-align: middle;
    flex-shrink: 0;
}

.camera-icon::before {
    content: '';
    position: absolute;
    width: 14px;
    height: 10px;
    border: 2px solid currentColor;
    border-radius: 2px;
    top: 3px;
    left: 1px;
    background: transparent;
}

.camera-icon::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    top: 1px;
    left: 6px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius);
    transition: all var(--transition);
    background: transparent;
    border: none;
    position: relative;
    z-index: var(--z-modal);
}

.hamburger:hover {
    background: var(--primary-light);
    transform: scale(1.05);
}

.hamburger:active {
    transform: scale(0.95);
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-radius: var(--radius-full);
    transform-origin: center;
    display: block;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background: var(--primary-color);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background: var(--primary-color);
}

.hamburger.active {
    background: var(--primary-light);
}

/* Card System */
.card {
    background: var(--background);
    border-radius: var(--radius);
    padding: var(--space-4);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-sm {
    padding: var(--space-3);
    border-radius: var(--radius-sm);
}

.card-lg {
    padding: var(--space-6);
    border-radius: var(--radius-lg);
}

.card-flat {
    box-shadow: none;
    border: 1px solid var(--border-light);
}

.card-elevated {
    box-shadow: var(--shadow-lg);
}

.card-interactive {
    cursor: pointer;
    user-select: none;
}

.card-interactive:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-interactive:active {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-4);
}

.grid-1 {
    grid-template-columns: 1fr;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-5 {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.grid-6 {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.gap-1 {
    gap: var(--space-1);
}

.gap-2 {
    gap: var(--space-2);
}

.gap-3 {
    gap: var(--space-3);
}

.gap-4 {
    gap: var(--space-4);
}

.gap-6 {
    gap: var(--space-6);
}

.gap-8 {
    gap: var(--space-8);
}

/* Layout Utilities */
.flex {
    display: flex;
}

.inline-flex {
    display: inline-flex;
}

.grid {
    display: grid;
}

.inline-grid {
    display: inline-grid;
}

.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

.inline {
    display: inline;
}

.hidden {
    display: none;
}

.flex-row {
    flex-direction: row;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-nowrap {
    flex-wrap: nowrap;
}

.items-start {
    align-items: flex-start;
}

.items-center {
    align-items: center;
}

.items-end {
    align-items: flex-end;
}

.items-stretch {
    align-items: stretch;
}

.justify-start {
    justify-content: flex-start;
}

.justify-center {
    justify-content: center;
}

.justify-end {
    justify-content: flex-end;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.justify-evenly {
    justify-content: space-evenly;
}

.self-start {
    align-self: flex-start;
}

.self-center {
    align-self: center;
}

.self-end {
    align-self: flex-end;
}

.self-stretch {
    align-self: stretch;
}

.flex-1 {
    flex: 1 1 0%;
}

.flex-auto {
    flex: 1 1 auto;
}

.flex-initial {
    flex: 0 1 auto;
}

.flex-none {
    flex: none;
}

/* Text Utilities */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-justify {
    text-align: justify;
}

.text-primary {
    color: var(--text-primary);
}

.text-secondary {
    color: var(--text-secondary);
}

.text-tertiary {
    color: var(--text-tertiary);
}

.text-purple {
    color: var(--primary-color);
}

.text-white {
    color: white;
}

.uppercase {
    text-transform: uppercase;
}

.lowercase {
    text-transform: lowercase;
}

.capitalize {
    text-transform: capitalize;
}

.normal-case {
    text-transform: none;
}

.underline {
    text-decoration: underline;
}

.no-underline {
    text-decoration: none;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Spacing Utilities */
.m-0 {
    margin: 0;
}

.m-1 {
    margin: var(--space-1);
}

.m-2 {
    margin: var(--space-2);
}

.m-3 {
    margin: var(--space-3);
}

.m-4 {
    margin: var(--space-4);
}

.m-5 {
    margin: var(--space-5);
}

.m-6 {
    margin: var(--space-6);
}

.m-8 {
    margin: var(--space-8);
}

.m-auto {
    margin: auto;
}

.mx-0 {
    margin-left: 0;
    margin-right: 0;
}

.mx-1 {
    margin-left: var(--space-1);
    margin-right: var(--space-1);
}

.mx-2 {
    margin-left: var(--space-2);
    margin-right: var(--space-2);
}

.mx-3 {
    margin-left: var(--space-3);
    margin-right: var(--space-3);
}

.mx-4 {
    margin-left: var(--space-4);
    margin-right: var(--space-4);
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.my-0 {
    margin-top: 0;
    margin-bottom: 0;
}

.my-1 {
    margin-top: var(--space-1);
    margin-bottom: var(--space-1);
}

.my-2 {
    margin-top: var(--space-2);
    margin-bottom: var(--space-2);
}

.my-3 {
    margin-top: var(--space-3);
    margin-bottom: var(--space-3);
}

.my-4 {
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--space-1);
}

.mt-2 {
    margin-top: var(--space-2);
}

.mt-3 {
    margin-top: var(--space-3);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-5 {
    margin-top: var(--space-5);
}

.mt-6 {
    margin-top: var(--space-6);
}

.mt-8 {
    margin-top: var(--space-8);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--space-1);
}

.mb-2 {
    margin-bottom: var(--space-2);
}

.mb-3 {
    margin-bottom: var(--space-3);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-5 {
    margin-bottom: var(--space-5);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

.mb-8 {
    margin-bottom: var(--space-8);
}

.ml-0 {
    margin-left: 0;
}

.ml-1 {
    margin-left: var(--space-1);
}

.ml-2 {
    margin-left: var(--space-2);
}

.ml-3 {
    margin-left: var(--space-3);
}

.ml-4 {
    margin-left: var(--space-4);
}

.ml-auto {
    margin-left: auto;
}

.mr-0 {
    margin-right: 0;
}

.mr-1 {
    margin-right: var(--space-1);
}

.mr-2 {
    margin-right: var(--space-2);
}

.mr-3 {
    margin-right: var(--space-3);
}

.mr-4 {
    margin-right: var(--space-4);
}

.mr-auto {
    margin-right: auto;
}

.p-0 {
    padding: 0;
}

.p-1 {
    padding: var(--space-1);
}

.p-2 {
    padding: var(--space-2);
}

.p-3 {
    padding: var(--space-3);
}

.p-4 {
    padding: var(--space-4);
}

.p-5 {
    padding: var(--space-5);
}

.p-6 {
    padding: var(--space-6);
}

.p-8 {
    padding: var(--space-8);
}

.px-0 {
    padding-left: 0;
    padding-right: 0;
}

.px-1 {
    padding-left: var(--space-1);
    padding-right: var(--space-1);
}

.px-2 {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
}

.px-3 {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
}

.px-4 {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.px-6 {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.py-0 {
    padding-top: 0;
    padding-bottom: 0;
}

.py-1 {
    padding-top: var(--space-1);
    padding-bottom: var(--space-1);
}

.py-2 {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
}

.py-3 {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
}

.py-4 {
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
}

.py-6 {
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
}

/* Background Utilities */
.bg-white {
    background-color: var(--background);
}

.bg-surface {
    background-color: var(--surface);
}

.bg-surface-secondary {
    background-color: var(--surface-secondary);
}

.bg-primary {
    background-color: var(--primary-color);
}

.bg-primary-light {
    background-color: var(--primary-light);
}

/* Border Utilities */
.border {
    border: 1px solid var(--border);
}

.border-light {
    border: 1px solid var(--border-light);
}

.border-primary {
    border: 1px solid var(--primary-color);
}

.border-0 {
    border: 0;
}

.border-t {
    border-top: 1px solid var(--border);
}

.border-b {
    border-bottom: 1px solid var(--border);
}

.border-l {
    border-left: 1px solid var(--border);
}

.border-r {
    border-right: 1px solid var(--border);
}

.rounded-none {
    border-radius: 0;
}

.rounded-sm {
    border-radius: var(--radius-sm);
}

.rounded {
    border-radius: var(--radius);
}

.rounded-lg {
    border-radius: var(--radius-lg);
}

.rounded-xl {
    border-radius: var(--radius-xl);
}

.rounded-full {
    border-radius: var(--radius-full);
}

/* Shadow Utilities */
.shadow-none {
    box-shadow: none;
}

.shadow-sm {
    box-shadow: var(--shadow-sm);
}

.shadow {
    box-shadow: var(--shadow);
}

.shadow-md {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

/* Position Utilities */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.sticky {
    position: sticky;
}

.static {
    position: static;
}

.top-0 {
    top: 0;
}

.right-0 {
    right: 0;
}

.bottom-0 {
    bottom: 0;
}

.left-0 {
    left: 0;
}

/* Width & Height Utilities */
.w-full {
    width: 100%;
}

.w-auto {
    width: auto;
}

.w-fit {
    width: fit-content;
}

.h-full {
    height: 100%;
}

.h-auto {
    height: auto;
}

.h-fit {
    height: fit-content;
}

/* Overflow Utilities */
.overflow-hidden {
    overflow: hidden;
}

.overflow-auto {
    overflow: auto;
}

.overflow-scroll {
    overflow: scroll;
}

.overflow-visible {
    overflow: visible;
}

/* Cursor Utilities */
.cursor-pointer {
    cursor: pointer;
}

.cursor-default {
    cursor: default;
}

.cursor-not-allowed {
    cursor: not-allowed;
}

/* User Select Utilities */
.select-none {
    user-select: none;
}

.select-text {
    user-select: text;
}

.select-all {
    user-select: all;
}

.select-auto {
    user-select: auto;
}

/* Opacity Utilities */
.opacity-0 {
    opacity: 0;
}

.opacity-25 {
    opacity: 0.25;
}

.opacity-50 {
    opacity: 0.5;
}

.opacity-75 {
    opacity: 0.75;
}

.opacity-100 {
    opacity: 1;
}

/* Transform Utilities */
.transform {
    transform: translateZ(0);
}

.scale-95 {
    transform: scale(0.95);
}

.scale-100 {
    transform: scale(1);
}

.scale-105 {
    transform: scale(1.05);
}

.scale-110 {
    transform: scale(1.1);
}

/* Transition Utilities */
.transition {
    transition: var(--transition);
}

.transition-fast {
    transition: var(--transition-fast);
}

.transition-slow {
    transition: var(--transition-slow);
}

.transition-none {
    transition: none;
}

/* Footer */
.footer {
    background: var(--surface);
    padding: var(--space-8) 0 var(--space-4);
    margin-top: var(--space-10);
    border-top: 2px solid var(--primary-color);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.3;
}

.footer-content {
    margin-bottom: var(--space-4);
}

.footer-contact-info {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-item {
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.contact-label {
    color: var(--text-primary);
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    display: inline-block;
    margin-right: var(--space-2);
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--font-medium);
    transition: all var(--transition);
}

.contact-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-text {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    display: inline;
}












.footer-bottom {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-light);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* Footer responsive design */
@media (max-width: 768px) {
    .footer {
        padding: var(--space-6) 0 var(--space-3);
        margin-top: var(--space-6);
    }

    .contact-item {
        margin-bottom: var(--space-3);
    }

    .contact-label {
        font-size: var(--text-sm);
        display: block;
        margin-bottom: var(--space-1);
        margin-right: 0;
    }

    .contact-text {
        font-size: var(--text-sm);
        display: block;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-3);
    }

    .nav-container {
        padding: 0 var(--space-3);
    }
}

@media (max-width: 768px) {
    .navbar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100vw !important;
        height: 80px !important;
        z-index: 99999 !important;
    }

    .nav-menu {
        position: fixed !important;
        left: -100%;
        top: 80px !important;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(40px) saturate(200%);
        -webkit-backdrop-filter: blur(40px) saturate(200%);
        width: 100% !important;
        height: calc(100vh - 80px);
        text-align: center;
        transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
        padding: var(--space-6) 0;
        border-bottom: 1px solid var(--border-light);
        overflow-y: auto;
        z-index: 99998 !important;
    }

    .nav-menu.active {
        left: 0;
        animation: slideInFromLeft 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .nav-menu li {
        margin: var(--space-2) 0;
        opacity: 0;
        transform: translateX(-20px);
        transition: all 0.3s ease;
    }

    .nav-menu.active li {
        opacity: 1;
        transform: translateX(0);
    }

    .nav-menu.active li:nth-child(1) {
        transition-delay: 0.1s;
    }

    .nav-menu.active li:nth-child(2) {
        transition-delay: 0.15s;
    }

    .nav-menu.active li:nth-child(3) {
        transition-delay: 0.2s;
    }

    .nav-menu.active li:nth-child(4) {
        transition-delay: 0.25s;
    }

    .nav-menu.active li:nth-child(5) {
        transition-delay: 0.3s;
    }

    .nav-menu.active li:nth-child(6) {
        transition-delay: 0.35s;
    }

    .nav-menu a {
        padding: var(--space-3) var(--space-6);
        border-radius: var(--radius);
        display: block;
        margin: 0 var(--space-4);
        font-size: var(--text-lg);
        font-weight: var(--font-medium);
        transition: all var(--transition);
        position: relative;
        overflow: hidden;
    }

    .nav-menu a::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
        transition: left 0.5s;
    }

    .nav-menu a:hover::before {
        left: 100%;
    }

    .nav-menu a:hover {
        background: var(--primary-light);
        transform: translateY(-2px) scale(1.02);
        box-shadow: var(--shadow);
    }

    .nav-menu a.active {
        background: var(--primary-color);
        color: white;
        transform: scale(1.05);
        box-shadow: var(--shadow-primary);
    }

    .nav-menu a.active::after {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    /* Mobile menu overlay */
    .nav-menu::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.3);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
        z-index: -1;
    }

    .nav-menu.active::before {
        opacity: 1;
        visibility: visible;
    }

    .container {
        padding: 0 var(--space-2);
    }

    /* Responsive Typography */
    h1 {
        font-size: var(--text-4xl);
    }

    h2 {
        font-size: var(--text-3xl);
    }

    h3 {
        font-size: var(--text-xl);
    }

    h4 {
        font-size: var(--text-lg);
    }

    /* Responsive Grid */
    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5,
    .grid-6 {
        grid-template-columns: 1fr;
    }

    /* Responsive Spacing */
    .py-8 {
        padding-top: var(--space-6);
        padding-bottom: var(--space-6);
    }

    .py-6 {
        padding-top: var(--space-4);
        padding-bottom: var(--space-4);
    }

    .mt-8 {
        margin-top: var(--space-6);
    }

    .mb-8 {
        margin-bottom: var(--space-6);
    }

    /* Responsive Cards */
    .card {
        padding: var(--space-3);
    }

    .card-lg {
        padding: var(--space-4);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-2);
    }

    .nav-container {
        padding: 0 var(--space-2);
        height: 70px;
    }

    .navbar {
        height: 70px;
    }

    .nav-menu {
        top: 70px;
    }

    /* Extra small screen typography */
    h1 {
        font-size: var(--text-3xl);
    }

    h2 {
        font-size: var(--text-2xl);
    }

    h3 {
        font-size: var(--text-lg);
    }

    /* Button adjustments */
    .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-sm);
    }

    .btn-lg {
        padding: var(--space-3) var(--space-4);
        font-size: var(--text-base);
    }
}

/* Enhanced Animations and Transitions */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInFromBottom {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-in {
    animation: fadeInUp 0.8s ease-out;
}

/* Enhanced Page Transition Effects */
body {
    transition: opacity 0.2s ease-out;
}

body.page-transitioning {
    opacity: 0.9;
}

body.page-loaded {
    opacity: 1;
}


/* Main Content Transitions */
main {
    transition: opacity 0.15s ease-out, transform 0.15s ease-out;
}

main.content-loading {
    opacity: 0;
    transform: translateY(8px);
}


/* Enhanced Mobile Navigation Animations */
.nav-menu.active li {
    animation: slideInFromLeft 0.4s ease-out forwards;
}

/* Ripple Effect for Touch Interactions */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }

    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(95, 33, 103, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple-effect:active::before {
    width: 300px;
    height: 300px;
}

/* Enhanced Mobile Responsive Breakpoints and Interactions */

/* Improved touch targets for mobile */
@media (max-width: 768px) {

    /* Ensure minimum touch target size of 44px */
    .btn,
    .nav-menu a,
    .hamburger,
    .carousel-btn,
    .lightbox-nav {
        min-height: 44px;
        min-width: 44px;
    }

    /* Enhanced mobile carousel styles */
    .carousel-container {
        touch-action: pan-y pinch-zoom;
        -webkit-overflow-scrolling: touch;
    }

    .carousel-slide {
        will-change: transform, opacity;
    }

    /* Mobile-optimized photo gallery */
    .photo-item {
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    /* Enhanced mobile lightbox */
    .lightbox {
        touch-action: none;
    }

    .lightbox-content {
        touch-action: pan-x pan-y;
    }

    .lightbox-image {
        will-change: transform, opacity;
        touch-action: none;
    }

    /* Mobile-specific animations */
    .nav-menu a {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }

    /* Improved mobile scrolling */
    body {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    /* Mobile-optimized cards */
    .card {
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
}

/* Enhanced breakpoints for better responsive design */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 var(--space-3);
    }
}

@media (max-width: 992px) {

    /* Tablet-specific adjustments */
    .nav-menu {
        gap: var(--space-3);
    }

    .grid-3 {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

    .grid-4 {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 640px) {

    /* Small mobile devices */
    .container {
        padding: 0 var(--space-2);
    }

    /* Adjust carousel for small screens */
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: var(--text-lg);
    }

    .carousel-indicators {
        bottom: var(--space-2);
    }

    /* Mobile typography adjustments */
    h1 {
        font-size: var(--text-3xl);
        line-height: 1.2;
    }

    h2 {
        font-size: var(--text-2xl);
        line-height: 1.3;
    }

    /* Mobile button adjustments */
    .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-sm);
        min-height: 44px;
    }

    /* Mobile card adjustments */
    .card {
        padding: var(--space-3);
        margin-bottom: var(--space-3);
    }
}

@media (max-width: 375px) {

    /* Extra small devices (iPhone SE, etc.) */
    .nav-container {
        height: 80px;
        padding: 0 var(--space-2);
    }

    .navbar {
        height: 80px;
    }

    .nav-menu {
        top: 80px;
        height: calc(100vh - 80px);
    }

    .nav-logo h1 {
        font-size: var(--text-lg);
    }

    .nav-logo p {
        font-size: var(--text-xs);
    }

    /* Ultra-compact spacing */
    .container {
        padding: 0 var(--space-1);
    }

    .card {
        padding: var(--space-2);
    }
}

/* Landscape orientation optimizations */
@media (max-height: 500px) and (orientation: landscape) {
    .nav-menu {
        height: calc(100vh - 80px);
        padding: var(--space-3) 0;
    }

    .nav-menu a {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-base);
    }

    .carousel-container {
        height: 60vh;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {

    /* Optimize for retina displays */
    .nav-logo h1,
    .nav-menu a,
    .btn {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Smooth scrolling with enhanced behavior */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    /* Account for fixed navbar */
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .carousel-slide {
        transition: none !important;
    }

    .nav-menu.active li {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}

/* Selection */
::selection {
    background: var(--primary-light);
    color: var(--primary-color);
}

/* Focus styles */
button:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

/* Loading skeleton styles */
.loading-skeleton {
    background: var(--surface);
    border-radius: var(--radius);
    padding: var(--space-4);
    margin-bottom: var(--space-2);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.skeleton-text {
    height: 1rem;
    background: var(--border-light);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.skeleton-text:last-child {
    margin-bottom: 0;
}

.skeleton-text.short {
    width: 60%;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }

    to {
        transform: translateX(0);
    }
}

.animate-slide-in {
    animation: slideIn 0.8s ease-out forwards;
}

/* Research page specific styles */
.research-card {
    background: var(--background);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--primary-dark));
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform var(--transition);
}

.research-card:hover::before {
    transform: scaleY(1);
}

.research-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-alpha-20);
}

.research-number {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-bold);
    font-size: var(--text-lg);
    color: var(--primary-color);
    margin-right: var(--space-4);
    flex-shrink: 0;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.research-number::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    transform: scale(0);
    transition: transform var(--transition);
    z-index: -1;
}

.research-card:hover .research-number::before {
    transform: scale(1);
}

.research-card:hover .research-number span {
    color: white;
}

.research-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2);
}

.research-icon {
    font-size: var(--text-2xl);
    opacity: 0.8;
    transition: all var(--transition);
}

.research-card:hover .research-icon {
    opacity: 1;
    transform: scale(1.1);
}

.research-progress {
    width: 100%;
    height: 4px;
    background: var(--surface);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--space-3);
}

.research-progress-bar {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-full);
    transform: translateX(-100%);
    transition: transform 1.2s ease-out;
}

.research-tags {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

.research-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--primary-light);
    color: var(--primary-color);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    transition: all var(--transition);
}

.research-tag-secondary {
    background: var(--surface);
    color: var(--text-secondary);
}

.research-card:hover .research-tag {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.research-statement-card {
    background: var(--surface);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.research-statement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
}

.statement-divider {
    transform: scaleX(0);
    transition: transform 0.8s ease-out;
}

.statement-text {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

/* Skeleton loading styles for research page */
.skeleton-card {
    background: var(--background);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border: 1px solid var(--border-light);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.skeleton-circle {
    width: 48px;
    height: 48px;
    background: var(--surface);
    border-radius: var(--radius-full);
    margin-right: var(--space-4);
    flex-shrink: 0;
}

.skeleton-line {
    height: 16px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.skeleton-line-lg {
    height: 20px;
    width: 80%;
}

.skeleton-line-md {
    height: 16px;
    width: 60%;
}

.skeleton-line-sm {
    height: 14px;
    width: 40%;
}

.skeleton-progress {
    height: 4px;
    background: var(--surface);
    border-radius: var(--radius-full);
    width: 100%;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Enhanced responsive design for research page */
@media (max-width: 768px) {
    .research-card {
        padding: var(--space-4);
    }

    .research-number {
        width: 40px;
        height: 40px;
        font-size: var(--text-base);
        margin-right: var(--space-3);
    }

    .research-title {
        font-size: var(--text-lg);
    }

    .research-tags {
        flex-wrap: wrap;
    }

    .research-tag {
        font-size: var(--text-xs);
        padding: 4px var(--space-2);
    }
}

@media (max-width: 480px) {
    .research-card {
        padding: var(--space-3);
    }

    .research-number {
        width: 36px;
        height: 36px;
        font-size: var(--text-sm);
        margin-right: var(--space-2);
    }

    .research-title {
        font-size: var(--text-base);
    }

    .research-number::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--primary-color);
        border-radius: var(--radius-full);
        transform: scale(0);
        transition: transform var(--transition);
        z-index: 1;
    }

    .research-card:hover .research-number::before {
        transform: scale(1);
    }
}

.research-card:hover .research-number {
    color: white;
}

.research-number span {
    position: relative;
    z-index: 2;
    transition: color var(--transition);
}

.research-progress {
    width: 100%;
    height: 4px;
    background: var(--surface);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--space-3);
}

.research-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-full);
    transform: translateX(-100%);
    transition: transform 0.8s ease-out;
}

/* Utility classes for research page */
.w-12 {
    width: 3rem;
}

.h-12 {
    height: 3rem;
}

.w-16 {
    width: 4rem;
}

.w-3\/4 {
    width: 75%;
}

.w-1\/2 {
    width: 50%;
}

.max-w-3xl {
    max-width: 48rem;
}

.max-w-4xl {
    max-width: 56rem;
}

/* Additional utility classes */
.bg-primary {
    background-color: var(--primary-color);
}

.pt-8 {
    padding-top: var(--space-8);
}

.py-8 {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
}

.flex-shrink-0 {
    flex-shrink: 0;
}

.flex-1 {
    flex: 1 1 0%;
}

.leading-relaxed {
    line-height: var(--leading-relaxed);
}

.leading-tight {
    line-height: var(--leading-tight);
}

.h-1 {
    height: 0.25rem;
}

.h-4 {
    height: 1rem;
}

.h-3 {
    height: 0.75rem;
}

/* Research Page Specific Styles */
.research-statement-card {
    background: linear-gradient(135deg, var(--surface) 0%, var(--background) 100%);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.research-statement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
}

.statement-divider {
    transform: scaleX(0);
    transition: transform 0.8s ease-out;
}

.statement-text {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.research-icon {
    font-size: var(--text-2xl);
    opacity: 0.8;
    transition: all var(--transition);
}

.research-card:hover .research-icon {
    opacity: 1;
    transform: scale(1.1);
}

.research-tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.research-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition);
}

.research-tag-secondary {
    background: var(--surface);
    color: var(--text-secondary);
}

.research-card:hover .research-tag {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.research-card:hover .research-tag-secondary {
    background: var(--text-secondary);
    color: white;
}

/* Skeleton Loading Styles */
.skeleton-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border: 1px solid var(--border-light);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-circle {
    width: 48px;
    height: 48px;
    background: var(--border-light);
    border-radius: var(--radius-full);
    margin-right: var(--space-4);
    flex-shrink: 0;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

.skeleton-line {
    height: 16px;
    background: var(--border-light);
    border-radius: var(--radius-sm);
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

.skeleton-line-lg {
    height: 20px;
    width: 80%;
}

.skeleton-line-md {
    height: 16px;
    width: 60%;
}

.skeleton-line-sm {
    height: 14px;
    width: 40%;
}

.skeleton-progress {
    height: 4px;
    background: var(--border-light);
    border-radius: var(--radius-full);
    width: 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

@keyframes skeleton-pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

@keyframes skeleton-shimmer {
    0% {
        background-position: -200px 0;
    }

    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton-line,
.skeleton-circle,
.skeleton-progress {
    background: linear-gradient(90deg, var(--border-light) 25%, var(--border) 50%, var(--border-light) 75%);
    background-size: 200px 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

/* Enhanced animations for research page */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Responsive adjustments for research page */
/* Duplicate media query removed - merged with other research responsive styles at line 2546 */

@media (max-width: 480px) {
    .research-card {
        padding: var(--space-3);
    }

    .research-tags {
        gap: var(--space-1);
    }

    .research-tag {
        padding: 4px var(--space-1);
        font-size: 10px;
    }

    .research-tag {
        padding: 4px var(--space-1);
        font-size: 10px;
    }
}

/* Additional utility classes for research page */
.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .5;
    }
}

/* Loading skeleton styles */
.skeleton {
    background: linear-gradient(90deg, var(--surface) 25%, var(--surface-secondary) 50%, var(--surface) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* Enhanced skeleton styles for research page */
.skeleton-card {
    background: var(--background);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    animation: pulse 2s ease-in-out infinite;
}

.skeleton-circle {
    width: 48px;
    height: 48px;
    background: var(--surface);
    border-radius: var(--radius-full);
    margin-right: var(--space-4);
    flex-shrink: 0;
    animation: loading 1.5s infinite;
}

.skeleton-line {
    height: 16px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    animation: loading 1.5s infinite;
}

.skeleton-line-lg {
    height: 20px;
    width: 85%;
}

.skeleton-line-md {
    height: 16px;
    width: 70%;
}

.skeleton-line-sm {
    height: 14px;
    width: 50%;
}

.skeleton-progress {
    height: 4px;
    background: var(--surface);
    border-radius: var(--radius-full);
    width: 100%;
    animation: loading 1.5s infinite;
}

/* Research tags styling */
.research-tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.research-tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border: 1px solid var(--primary-alpha-20);
    transition: all var(--transition);
}

.research-tag:hover {
    background: var(--primary-alpha-30);
    transform: translateY(-1px);
}

.research-tag-secondary {
    background: var(--surface-secondary);
    color: var(--text-secondary);
    border-color: var(--border);
}

.research-tag-secondary:hover {
    background: var(--surface);
    color: var(--text-primary);
}

/* Research icon styling */
.research-icon {
    font-size: 1.5rem;
    opacity: 0.8;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius);
    background: var(--surface);
}

.research-card:hover .research-icon {
    opacity: 1;
    transform: scale(1.1);
    background: var(--primary-light);
}

/* Enhanced research statement card */
.research-statement-card {
    position: relative;
    overflow: hidden;
}

.research-statement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1s ease-out;
    animation: scaleIn 1.5s ease-out 0.5s forwards;
}

@keyframes scaleIn {
    to {
        transform: scaleX(1);
    }
}

.statement-divider {
    transform: scaleX(0);
}

.statement-text {
    opacity: 0;
    transform: translateY(10px);
}

/* Enhanced research card hover effects */
.research-card:hover .research-progress-bar {
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark), var(--primary-color));
    background-size: 200% 100%;
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* Additional responsive adjustments for research page */
@media (max-width: 768px) {
    .research-statement-card {
        padding: var(--space-4);
    }

    .skeleton-circle {
        width: 40px;
        height: 40px;
        margin-right: var(--space-3);
    }
}

/* Hero C
arousel Styles */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    margin-top: 80px;
    /* Account for fixed navbar */
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 0;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: all var(--transition-slow);
    transform: translateX(100%);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0);
    z-index: 2;
}

.carousel-slide.prev {
    transform: translateX(-100%);
    z-index: 1;
}

.carousel-slide.next {
    transform: translateX(100%);
    z-index: 1;
}

.carousel-slide img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 1;
    transition: transform var(--transition-slow);
}

.carousel-slide:hover img {
    transform: scale(1.05);
}

.carousel-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(95, 33, 103, 0.7) 0%,
            rgba(75, 25, 83, 0.5) 50%,
            rgba(0, 0, 0, 0.3) 100%);
    z-index: 2;
    transition: opacity var(--transition);
}

.carousel-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: var(--space-6);
    margin: 0 auto;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-slow);
}

.carousel-slide.active .carousel-content {
    transform: translateY(0);
    opacity: 1;
    transition-delay: 0.3s;
}

.carousel-content h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-3);
    line-height: var(--leading-tight);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    color: white;
}

.carousel-content p {
    font-size: var(--text-xl);
    margin-bottom: var(--space-4);
    line-height: var(--leading-relaxed);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
    color: rgba(255, 255, 255, 0.9);
}

.carousel-content .btn-primary {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.1));
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    font-weight: var(--font-semibold);
    padding: var(--space-2) var(--space-6);
    font-size: var(--text-base);
    letter-spacing: 0.3px;
    border-radius: var(--radius-full);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: none;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    min-width: 120px;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.carousel-content .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.carousel-content .btn-primary::after {
    content: '→';
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    margin-left: var(--space-1);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-content .btn-primary:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.15));
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15),
        0 4px 15px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    letter-spacing: 0.8px;
}

.carousel-content .btn-primary:hover::before {
    left: 100%;
}

.carousel-content .btn-primary:hover::after {
    transform: translateX(2px);
}

.carousel-content .btn-primary:active {
    transform: translateY(-1px) scale(0.98);
    transition: all 0.1s;
}

/* Carousel Navigation Buttons */
.carousel-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 var(--space-4);
    z-index: 4;
    pointer-events: none;
}

.carousel-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    cursor: pointer;
    transition: all var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    pointer-events: auto;
    user-select: none;
    transform: translateY(-50%);
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.carousel-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-btn.prev {
    left: var(--space-4);
}

.carousel-btn.next {
    right: var(--space-4);
}

/* Carousel Indicators */
.carousel-indicators {
    position: absolute;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-2);
    z-index: 4;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.indicator.active {
    background: white;
    border-color: white;
    transform: scale(1.3);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.indicator.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* Responsive Carousel Styles */
@media (max-width: 1024px) {
    .hero {
        height: 80vh;
        min-height: 500px;
    }

    .carousel-content {
        max-width: 600px;
        padding: var(--space-4);
    }

    .carousel-content h2 {
        font-size: var(--text-3xl);
    }

    .carousel-content p {
        font-size: var(--text-base);
    }

    .carousel-btn {
        width: 50px;
        height: 50px;
        font-size: var(--text-xl);
    }

    .carousel-nav {
        padding: 0 var(--space-3);
    }
}

@media (max-width: 768px) {
    .hero {
        height: 70vh;
        min-height: 400px;
    }

    .carousel-content {
        max-width: 90%;
        padding: var(--space-3);
    }

    .carousel-content h2 {
        font-size: var(--text-2xl);
        margin-bottom: var(--space-2);
    }

    .carousel-content p {
        font-size: var(--text-sm);
        margin-bottom: var(--space-3);
    }

    .carousel-content .btn-primary {
        padding: var(--space-2) var(--space-5);
        font-size: var(--text-sm);
        min-width: 100px;
        letter-spacing: 0.2px;
    }

    .carousel-content .btn-primary::after {
        font-size: var(--text-sm);
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: var(--text-lg);
    }

    .carousel-nav {
        padding: 0 var(--space-2);
    }

    .carousel-indicators {
        bottom: var(--space-4);
    }

    .indicator {
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 480px) {
    .hero {
        height: 60vh;
        min-height: 350px;
    }

    .carousel-content h2 {
        font-size: var(--text-xl);
    }

    .carousel-content p {
        font-size: var(--text-xs);
    }

    .carousel-btn {
        width: 35px;
        height: 35px;
        font-size: var(--text-base);
    }

    .indicator {
        width: 8px;
        height: 8px;
    }
}

/* Carousel 
Loading Styles */
.carousel-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 5;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-2);
}

.carousel-loading p {
    color: white;
    font-size: var(--text-base);
    margin: 0;
}

/* Error state styles */
.carousel-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 5;
    max-width: 400px;
    padding: var(--space-4);
}

.carousel-error h3 {
    color: white;
    margin-bottom: var(--space-2);
}

.carousel-error p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-3);
}

.carousel-error .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.carousel-error .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

/* L
oading Skeleton Styles */
.loading-skeleton {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.skeleton-title {
    height: 2rem;
    background: var(--surface);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-3);
    width: 60%;
}

.skeleton-text {
    height: 1rem;
    background: var(--surface);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}

.skeleton-text.short {
    width: 40%;
}

.skeleton-date {
    height: 0.875rem;
    background: var(--surface);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-1);
    width: 30%;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* About Section Styles */
/* Main Content Section */
.main-content {
    padding: var(--space-12) 0 var(--space-10) 0;
    background: var(--background);
    margin-top: var(--space-8);
}

.content-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-16);
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

/* About Section */
.about-section {
    padding-right: var(--space-4);
}

.about-content h2 {
    color: var(--primary-color);
    font-size: var(--text-3xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-8);
    margin-top: var(--space-2);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.about-content p {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--space-6);
    font-weight: 400;
    text-align: justify;
}

.positions-notice {
    background: var(--surface);
    padding: var(--space-4);
    border-radius: var(--radius);
    margin-top: var(--space-6);
    border-left: 4px solid var(--primary-color);
}

.positions-notice h3 {
    color: var(--primary-color);
    margin-bottom: var(--space-2);
}

.positions-notice p {
    margin: 0;
    color: var(--text-secondary);
}

/* Enhanced About Section Styles */

.positions-highlight {
    margin-top: var(--space-8);
}

.positions-text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.6;
    text-align: justify;
    margin: 0;
}

.positions-text .contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-style: normal;
    transition: all 0.2s ease;
}

.positions-text .contact-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}



/* Research Page Header */
.page-header {
    max-width: 800px;
    margin: 0 auto var(--space-8) auto;
    text-align: center;
}

.page-header h1 {
    color: var(--primary-color);
    font-size: var(--text-3xl);
    font-weight: var(--font-semibold);
    margin: 0;
    letter-spacing: -0.02em;
}

/* Research Introduction */
.research-intro {
    max-width: 800px;
    margin: 0 auto var(--space-10) auto;
}

.research-statement p {
    font-size: var(--text-lg);
    line-height: 1.7;
    color: var(--text-primary);
    text-align: justify;
    margin: 0;
}

/* Simple Research List Styles */
.research-list {
    max-width: 800px;
    margin: 0 auto;
}

.research-item {
    display: flex;
    align-items: flex-start;
    padding: var(--space-6) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    gap: var(--space-4);
}

.research-item:last-child {
    border-bottom: none;
}

.research-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(95, 33, 103, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    color: var(--primary-color);
    margin-top: var(--space-1);
}

.research-text {
    flex: 1;
}

.research-text p {
    margin: 0;
    font-size: var(--text-lg);
    line-height: 1.7;
    color: var(--text-primary);
    text-align: justify;
}

/* Skeleton styles */
.skeleton-item {
    display: flex;
    align-items: flex-start;
    padding: var(--space-6) 0;
    gap: var(--space-4);
}

.skeleton-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
    margin-top: var(--space-1);
}

.skeleton-text {
    flex: 1;
}

.skeleton-text .skeleton-line {
    height: 20px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    width: 100%;
}

/* Latest News Section Styles */
/* News Section */
.news-section {
    padding-left: var(--space-6);
    border-left: 2px solid rgba(95, 33, 103, 0.15);
}

.section-header {
    margin-bottom: var(--space-8);
    margin-top: var(--space-2);
    position: relative;
}

.section-header h2 {
    color: var(--primary-color);
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    letter-spacing: -0.02em;
    margin: 0;
    margin-bottom: var(--space-2);
}

.header-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    border-radius: 2px;
}

.news-list {
    margin-bottom: var(--space-6);
}

.news-item {
    padding: var(--space-3) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
    position: relative;
}

.news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.news-item:hover {
    padding-left: var(--space-2);
}

.news-item:hover::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: var(--primary-color);
    border-radius: 2px;
    opacity: 0.6;
}

.news-date {
    font-size: var(--text-sm);
    color: var(--primary-color);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-1);
    display: block;
}

.news-item p {
    margin: 0;
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--text-base);
}

.section-footer {
    padding-top: var(--space-4);
    border-top: 1px solid rgba(95, 33, 103, 0.1);
}

.view-all-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-size: var(--text-base);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.view-all-link:hover {
    color: var(--primary-dark);
    transform: translateX(2px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .main-content {
        padding: var(--space-8) 0 var(--space-6) 0;
        margin-top: var(--space-6);
    }

    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .about-section {
        padding-right: 0;
        margin-bottom: var(--space-8);
        padding-bottom: var(--space-8);
        border-bottom: 2px solid rgba(95, 33, 103, 0.15);
    }

    .news-section {
        padding-left: 0;
        border-left: none;
        border-top: 2px solid rgba(95, 33, 103, 0.15);
        padding-top: var(--space-8);
    }

    .about-content h2 {
        font-size: var(--text-2xl);
        text-align: center;
        margin-bottom: var(--space-6);
        margin-top: 0;
    }

    .about-content p {
        font-size: var(--text-base);
        text-align: left;
        margin-bottom: var(--space-4);
        color: var(--text-primary);
    }

    .section-header {
        text-align: center;
        margin-bottom: var(--space-6);
        margin-top: 0;
    }

    .section-header h2 {
        font-size: var(--text-xl);
        text-align: center;
    }

    .header-line {
        margin: 0 auto;
    }

    .news-item:hover {
        padding-left: var(--space-3);
    }

    .positions-highlight {
        margin-top: var(--space-6);
    }

    .positions-text {
        font-size: var(--text-xs);
        text-align: left;
    }

    /* Research page mobile styles */
    .research-item {
        padding: var(--space-4) 0;
        gap: var(--space-3);
    }

    .research-number {
        width: 28px;
        height: 28px;
        font-size: var(--text-xs);
    }

    .research-text p {
        font-size: var(--text-base);
        text-align: left;
    }

    /* Research page mobile styles */
    .page-header h1 {
        font-size: var(--text-2xl);
    }

    .research-statement p {
        font-size: var(--text-base);
        text-align: left;
    }
}

/* Error Me
ssage Styles */
.error-message {
    text-align: center;
    padding: var(--space-6);
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin: var(--space-4) 0;
}

.error-message p {
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

.error-message .btn-secondary {
    margin-top: var(--space-2);
}

/* Publications Page Styles */
.publications-filters {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.filter-container {
    display: flex;
    gap: var(--space-4);
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.search-container {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: var(--space-2) var(--space-4);
    padding-left: var(--space-6);
    border: 2px solid var(--border-light);
    border-radius: var(--radius);
    font-size: var(--text-base);
    background: var(--background);
    transition: var(--transition);
    outline: none;
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-alpha-20);
}

.search-icon {
    position: absolute;
    left: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.year-filter {
    padding: var(--space-2) var(--space-4);
    border: 2px solid var(--border-light);
    border-radius: var(--radius);
    font-size: var(--text-base);
    background: var(--background);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    min-width: 140px;
}

.year-filter:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-alpha-20);
}

.publications-container {
    min-height: 400px;
}

.year-section {
    margin-bottom: var(--space-8);
}

.year-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--primary-color);
}

.year-title {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--primary-color);
    margin: 0;
}

.year-count {
    margin-left: var(--space-2);
    background: var(--primary-light);
    color: var(--primary-color);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.publications-grid {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: 1fr;
}

.publication-card {
    background: var(--background);
    border-radius: var(--radius);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.publication-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-alpha-30);
}

.publication-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    opacity: 0;
    transition: var(--transition);
}

.publication-card:hover::before {
    opacity: 1;
}

.publication-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--leading-snug);
}

.publication-title a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.publication-title a:hover {
    color: var(--primary-color);
}

.publication-authors {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    line-height: var(--leading-relaxed);
}

.publication-journal {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--primary-color);
    margin-bottom: var(--space-1);
}

.publication-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-light);
}

.publication-year {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-weight: var(--font-medium);
}

.publication-links {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.publication-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background: var(--primary-light);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: var(--transition);
}

.publication-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.publication-notes {
    margin-top: var(--space-2);
    padding: var(--space-2);
    background: var(--primary-light);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    color: var(--primary-color);
    font-weight: var(--font-medium);
}

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-2);
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.no-results {
    text-align: center;
    padding: var(--space-8);
    color: var(--text-secondary);
}

.no-results h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.no-results p {
    font-size: var(--text-lg);
    margin-bottom: var(--space-4);
}

.clear-filters-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: var(--transition);
}

.clear-filters-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .filter-container {
        flex-direction: column;
        align-items: stretch;
    }

    .search-container {
        max-width: none;
    }

    .year-filter {
        min-width: auto;
    }

    .publication-card {
        padding: var(--space-3);
    }

    .publication-title {
        font-size: var(--text-base);
    }

    .publication-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .publication-links {
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 480px) {
    .publications-filters {
        padding: var(--space-3);
    }

    .year-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-1);
    }

    .year-title {
        font-size: var(--text-2xl);
    }

    .publication-card {
        padding: var(--space-2);
    }
}

.results-indicator {
    background: var(--primary-light);
    border: 1px solid var(--primary-alpha-30);
    border-radius: var(--radius);
    padding: var(--space-3);
    margin-bottom: var(--space-4);
    text-align: center;
}

.results-indicator p {
    margin: 0;
    color: var(--primary-color);
    font-weight: var(--font-medium);
}

/* Me
mber Page Styles */
.member-section {
    margin-bottom: var(--space-8);
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    text-align: center;
    position: relative;
    padding-bottom: var(--space-2);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-full);
}

/* Member Controls */
.member-controls {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 16px;
}

.search-container {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
    margin-bottom: 24px;
}

.search-input {
    width: 100%;
    padding: 14px 70px 14px 50px;
    font-size: 16px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-full);
    background: var(--surface);
    color: var(--text-primary);
    transition: all 0.3s ease;
    outline: none;
    line-height: 1.4;
}

.search-input:focus {
    border-color: var(--primary-color);
    background: var(--background);
    box-shadow: 0 0 0 3px var(--primary-alpha-20);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 16px;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    z-index: 2;
}

.search-clear {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    transition: all 0.2s ease;
    outline: none;
    z-index: 2;
}

.search-clear:hover {
    background: var(--primary-alpha-20);
    color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.search-clear:active {
    transform: translateY(-50%) scale(0.95);
}

.search-status {
    text-align: center;
    margin: 8px 0 16px 0;
    padding: 8px 16px;
    background: var(--primary-light);
    border-radius: var(--radius);
    border: 1px solid var(--primary-alpha-30);
}

.search-status p {
    margin: 0;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 8px;
}

.filter-btn {
    padding: 12px 24px;
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    background: var(--background);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    white-space: nowrap;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-primary);
}

.filter-btn.active:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
}

/* Responsive adjustments for member controls */
@media (max-width: 992px) {
    .category-filters {
        gap: 10px;
        max-width: 100%;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 13px;
        min-height: 40px;
    }
}

@media (max-width: 768px) {
    .search-container {
        margin-bottom: 20px;
    }
    
    .search-input {
        font-size: 14px;
        padding: 12px 60px 12px 45px;
    }
    
    .search-icon {
        left: 16px;
        font-size: 14px;
        width: 20px;
        height: 20px;
    }
    
    .search-clear {
        right: 16px;
        font-size: 14px;
        width: 20px;
        height: 20px;
    }
    
    .category-filters {
        gap: 8px;
        justify-content: center;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 12px;
        min-height: 36px;
        flex: 0 0 auto;
    }
}

@media (max-width: 640px) {
    .category-filters {
        gap: 6px;
        justify-content: center;
    }
    
    .filter-btn {
        padding: 6px 12px;
        font-size: 11px;
        min-height: 32px;
    }
}

@media (max-width: 480px) {
    .search-container {
        margin-bottom: 16px;
    }
    
    .category-filters {
        gap: 6px;
        justify-content: center;
        /* Stack buttons in multiple rows on very small screens */
        max-width: 100%;
    }
    
    .filter-btn {
        padding: 8px 12px;
        font-size: 11px;
        min-height: 32px;
        border-width: 1px;
        /* Ensure minimum touch target size */
        min-width: 44px;
    }
    
    .filter-btn.active {
        border-width: 1px;
    }
}

/* Extra small screens - optimize for very narrow displays */
@media (max-width: 360px) {
    .member-controls {
        padding: 0 12px;
    }
    
    .search-input {
        font-size: 13px;
        padding: 10px 50px 10px 40px;
    }
    
    .search-icon {
        left: 14px;
        width: 18px;
        height: 18px;
        font-size: 12px;
    }
    
    .search-clear {
        right: 14px;
        width: 18px;
        height: 18px;
        font-size: 12px;
    }
    
    .category-filters {
        gap: 4px;
    }
    
    .filter-btn {
        padding: 6px 10px;
        font-size: 10px;
        min-height: 30px;
        min-width: 40px;
    }
}

/* Member Card Styles */
.member-card {
    background: var(--background);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.member-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.member-card:hover::before {
    transform: scaleX(1);
}

.member-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-alpha-20);
}

/* Professor Card - Special styling for PI */
.professor-card {
    background: linear-gradient(135deg, var(--background) 0%, var(--primary-light) 100%);
    border: 2px solid var(--primary-alpha-20);
    padding: var(--space-8);
}

.professor-card .member-photo {
    width: 160px;
    height: 200px;
    border-radius: var(--radius);
    object-fit: cover;
    margin: 0 auto var(--space-4);
    border: 4px solid var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.professor-card .member-name {
    font-size: var(--text-2xl);
    color: var(--primary-color);
    text-align: center;
}

.professor-card .member-title {
    font-size: var(--text-lg);
    text-align: center;
    margin-bottom: var(--space-4);
}

/* Member Photo */
.member-photo {
    width: 140px;
    height: 180px;
    border-radius: var(--radius);
    object-fit: cover;
    margin: 0 auto var(--space-3);
    border: 3px solid var(--border-light);
    transition: all var(--transition);
    background: var(--surface);
    display: block;
}

.member-card:hover .member-photo {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* Member Info */
.member-info {
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.member-name {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--leading-tight);
}

.member-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--primary-color);
    margin-bottom: var(--space-3);
    line-height: var(--leading-snug);
}

.member-year {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    margin-top: var(--space-1);
}

.member-research-focus {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-2);
    padding: var(--space-1) var(--space-2);
    background: var(--primary-light);
    border-radius: var(--radius);
    border-left: 3px solid var(--primary-color);
}

.member-description {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    line-height: var(--leading-relaxed);
    flex-grow: 1;
    text-align: left;
}

/* Member details grid for left-right layout */
.member-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    margin: var(--space-4) 0;
    align-items: start;
}

.member-affiliation,
.member-roles {
    padding: 0;
}

.member-affiliation ul,
.member-roles ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.member-affiliation li,
.member-roles li {
    font-size: var(--text-sm);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    line-height: 1.4;
    font-weight: var(--font-medium);
}

.member-affiliation li:last-child,
.member-roles li:last-child {
    margin-bottom: 0;
}

/* Improve text alignment */
.member-affiliation li {
    text-align: left;
}

.member-roles li {
    text-align: left;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .member-details-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .member-affiliation li,
    .member-roles li {
        margin-bottom: var(--space-1);
    }
}

/* PI Detail Page Styles */
.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    transition: all var(--transition);
}

.back-link:hover {
    color: var(--primary-dark);
    transform: translateX(-2px);
}

.pi-profile-header {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0;
    align-items: center;
    margin-bottom: var(--space-8);
    min-height: 350px;
}

.pi-photo-section {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    height: 100%;
    margin-right: 32px;
}

.pi-photo-container {
    width: 520px;
    flex-shrink: 0;
}

.pi-photo {
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    display: block;
}

.pi-info-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    height: 100%;
    margin-left: 0;
}

.pi-basic-info {
    text-align: left;
    margin-bottom: var(--space-3);
}

.pi-name {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1.2;
    margin-top: 0;
}

.pi-title {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: 0;
    font-weight: var(--font-medium);
}

.pi-details-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.pi-detail-block {
    padding: 0;
}

.pi-detail-content p {
    font-size: var(--text-sm);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    line-height: 1.6;
    font-weight: var(--font-medium);
}

.pi-detail-content p:last-child {
    margin-bottom: 0;
}

.pi-section {
    margin-bottom: var(--space-8);
}

.pi-content p {
    margin-bottom: var(--space-4);
    line-height: 1.7;
    color: var(--text-primary);
    text-align: justify;
}

.subsection-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: var(--space-6) 0 var(--space-3) 0;
}

.research-interests {
    list-style: none;
    counter-reset: research-counter;
    padding-left: 0;
}

.research-interests li {
    counter-increment: research-counter;
    margin-bottom: var(--space-2);
    padding-left: var(--space-6);
    position: relative;
    line-height: 1.6;
    color: var(--text-primary);
}

.research-interests li::before {
    content: counter(research-counter) ")";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: var(--font-semibold);
}

.timeline {
    position: relative;
    padding-left: var(--space-6);
}

.timeline::before {
    content: '';
    position: absolute;
    left: var(--space-4);
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-4);
    padding-left: var(--space-6);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
}

.timeline-year {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--primary-color);
    margin-bottom: var(--space-1);
}

.timeline-content {
    font-size: var(--text-sm);
    color: var(--text-primary);
    line-height: 1.6;
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-4);
}

.award-item {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
}

.award-year {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--primary-color);
    min-width: 60px;
    flex-shrink: 0;
}

.award-title {
    font-size: var(--text-sm);
    color: var(--text-primary);
    line-height: 1.5;
}


/* Tablet responsive */
@media (max-width: 1024px) {
    .pi-profile-header {
        grid-template-columns: auto 1fr;
        gap: 0;
        min-height: 300px;
    }
    
    .pi-photo-section {
        margin-right: 24px;
    }
    
    .pi-photo-container {
        width: 450px;
    }
}

/* Mobile responsive for PI page */
@media (max-width: 768px) {
    .pi-profile-header {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        margin-bottom: var(--space-6);
        min-height: auto;
        align-items: start;
    }
    
    .pi-photo-section {
        order: 1;
        justify-content: center;
        height: auto;
        margin-right: 0;
        margin-bottom: var(--space-4);
    }
    
    .pi-info-section {
        order: 2;
        text-align: center;
        gap: var(--space-4);
        padding: 0;
        height: auto;
        justify-content: flex-start;
    }
    
    .pi-photo-container {
        width: 360px;
        max-width: 90vw;
    }
    
    .pi-details-section {
        flex-direction: column;
        gap: var(--space-4);
        text-align: left;
    }
    
    .pi-name {
        font-size: var(--text-2xl);
    }
    
    .pi-title {
        font-size: var(--text-base);
    }
    
    .timeline {
        padding-left: var(--space-4);
    }
    
    .timeline-item {
        padding-left: var(--space-4);
    }
    
    .awards-grid {
        grid-template-columns: 1fr;
    }
}

/* Small mobile responsive */
@media (max-width: 480px) {
    .pi-profile-header {
        gap: var(--space-4);
        margin-bottom: var(--space-4);
    }
    
    .pi-photo-container {
        width: 320px;
        max-width: 85vw;
    }
    
    .pi-info-section {
        gap: var(--space-3);
    }
    
    .pi-name {
        font-size: var(--text-xl);
    }
    
    .pi-title {
        font-size: var(--text-sm);
    }
    
    .pi-detail-label {
        font-size: var(--text-sm);
    }
    
    .pi-detail-content p {
        font-size: var(--text-xs);
    }
}

.member-more-info {
    display: inline-flex;
    align-items: center;
    margin-top: var(--space-3);
    padding: var(--space-2) var(--space-3);
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--radius);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: all var(--transition);
}

.member-more-info:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* Alumni Grid */
.alumni-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.alumni-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: var(--space-4);
    border: 1px solid var(--border-light);
    transition: all var(--transition);
    text-align: center;
}

.alumni-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary-alpha-20);
}

.alumni-name {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.alumni-position {
    font-size: var(--text-base);
    color: var(--primary-color);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-1);
}

.alumni-year {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

/* Placeholder for missing images */
.member-photo-placeholder {
    width: 140px;
    height: 180px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--surface) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-3);
    border: 3px solid var(--border-light);
    transition: all var(--transition);
    font-size: var(--text-2xl);
    color: var(--primary-color);
    font-weight: var(--font-bold);
}

.professor-card .member-photo-placeholder {
    width: 160px;
    height: 200px;
    border-radius: var(--radius);
    border: 4px solid var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.member-card:hover .member-photo-placeholder {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* Loading state */
.members-loading {
    text-align: center;
    padding: var(--space-8);
    color: var(--text-secondary);
}

.members-loading .loading {
    margin: 0 auto var(--space-4);
}

/* Error state */
.members-error {
    text-align: center;
    padding: var(--space-8);
    color: var(--text-secondary);
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .member-card {
        padding: var(--space-4);
    }

    .professor-card {
        padding: var(--space-6);
    }

    .professor-card .member-photo,
    .professor-card .member-photo-placeholder {
        width: 130px;
        height: 160px;
    }

    .member-photo,
    .member-photo-placeholder {
        width: 110px;
        height: 140px;
    }
    
    

    .section-title {
        font-size: var(--text-2xl);
    }

    .member-name {
        font-size: var(--text-lg);
    }

    .professor-card .member-name {
        font-size: var(--text-xl);
    }

    .alumni-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .member-card {
        padding: var(--space-3);
    }

    .professor-card {
        padding: var(--space-4);
    }

    .section-title {
        font-size: var(--text-xl);
    }
}

/* Pho
to Gallery Styles */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.gallery-section {
    margin-bottom: var(--space-8);
}

.gallery-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--primary-color);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--primary-light);
    position: relative;
}

.gallery-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
}

.photo-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    cursor: pointer;
    aspect-ratio: 4/3;
}

.photo-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition);
    border-radius: var(--radius-lg);
}

.photo-item:hover img {
    transform: scale(1.1);
}

.photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: var(--space-4);
    transform: translateY(100%);
    transition: all var(--transition);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.photo-item:hover .photo-overlay {
    transform: translateY(0);
}

.photo-caption {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin: 0;
    line-height: var(--leading-snug);
}

/* Filter Controls */
.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
    margin-bottom: var(--space-6);
    padding: var(--space-4);
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.filter-select {
    padding: var(--space-2) var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--background);
    color: var(--text-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: all var(--transition);
    cursor: pointer;
    min-width: 150px;
}

.filter-select:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Lightbox Styles */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--text-2xl);
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: var(--space-4);
}

.lightbox-next {
    right: var(--space-4);
}

.lightbox-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--text-2xl);
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox-caption {
    position: absolute;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    max-width: 80%;
    text-align: center;
    opacity: 0;
    transition: all var(--transition);
}

.lightbox.active .lightbox-caption {
    opacity: 1;
}

/* Loading States */
.photo-item.loading {
    background: var(--surface);
    position: relative;
}

.photo-item.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Responsive Design for Photo Gallery */
@media (max-width: 768px) {
    .photo-gallery {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--space-3);
    }

    .filter-controls {
        flex-direction: column;
        align-items: center;
        gap: var(--space-2);
    }

    .filter-select {
        width: 100%;
        max-width: 300px;
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: var(--text-xl);
    }

    .lightbox-prev {
        left: var(--space-2);
    }

    .lightbox-next {
        right: var(--space-2);
    }

    .lightbox-close {
        top: var(--space-2);
        right: var(--space-2);
        width: 40px;
        height: 40px;
        font-size: var(--text-xl);
    }
}

@media (max-width: 480px) {
    .photo-gallery {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: var(--space-2);
    }

    .photo-item {
        aspect-ratio: 1;
    }

    .gallery-title {
        font-size: var(--text-xl);
    }
}

/* Animation for photo loading */
@keyframes photoFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.photo-item img {
    animation: photoFadeIn 0.5s ease-out;
}

/* Masonry-style layout for varied photo sizes */
.photo-gallery.masonry {
    columns: 3;
    column-gap: var(--space-4);
}

.photo-gallery.masonry .photo-item {
    break-inside: avoid;
    margin-bottom: var(--space-4);
    aspect-ratio: auto;
}

@media (max-width: 768px) {
    .photo-gallery.masonry {
        columns: 2;
        column-gap: var(--space-3);
    }
}

@media (max-width: 480px) {
    .photo-gallery.masonry {
        columns: 1;
    }
}

/* Pho
to Gallery Styles */
.filter-controls {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    justify-content: center;
    flex-wrap: wrap;
}

.filter-select {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--background);
    color: var(--text-primary);
    font-size: var(--text-base);
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    min-width: 150px;
}

.filter-select:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-alpha-20);
}

.gallery-section {
    margin-bottom: var(--space-8);
}

.gallery-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--primary-color);
    margin-bottom: var(--space-4);
    text-align: center;
    position: relative;
}

.gallery-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-full);
}

.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.photo-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    cursor: pointer;
    aspect-ratio: 4/3;
}

.photo-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.photo-item.loading {
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-item.loading::before {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.photo-item:hover img {
    transform: scale(1.05);
}

.photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: var(--space-4);
    transform: translateY(100%);
    transition: var(--transition);
}

.photo-item:hover .photo-overlay {
    transform: translateY(0);
}

.photo-caption {
    margin: 0;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: white;
    line-height: var(--leading-snug);
}

/* Lightbox Styles */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    z-index: 1;
    user-select: none;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow);
}

.lightbox-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.lightbox-prev {
    left: -70px;
}

.lightbox-next {
    right: -70px;
}

.lightbox-close {
    position: absolute;
    top: -60px;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    z-index: 1;
    user-select: none;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
    box-shadow: var(--shadow);
}

.lightbox-close:active {
    transform: scale(0.95);
}

.lightbox-caption {
    position: absolute;
    bottom: -60px;
    left: 0;
    right: 0;
    text-align: center;
    color: white;
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    padding: var(--space-2);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius);
    margin: 0;
}

/* Responsive Photo Gallery */
@media (max-width: 768px) {
    .photo-gallery {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--space-3);
    }

    .filter-controls {
        flex-direction: column;
        align-items: center;
        gap: var(--space-2);
    }

    .filter-select {
        width: 100%;
        max-width: 300px;
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: var(--text-lg);
    }

    .lightbox-prev {
        left: -50px;
    }

    .lightbox-next {
        right: -50px;
    }

    .lightbox-close {
        top: -50px;
        width: 40px;
        height: 40px;
        font-size: var(--text-lg);
    }

    .lightbox-caption {
        font-size: var(--text-base);
        bottom: -50px;
    }
}

@media (max-width: 480px) {
    .photo-gallery {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: var(--space-2);
    }

    .lightbox-content {
        max-width: 95vw;
        max-height: 95vh;
    }

    .lightbox-nav {
        width: 35px;
        height: 35px;
        font-size: var(--text-base);
    }

    .lightbox-prev {
        left: -40px;
    }

    .lightbox-next {
        right: -40px;
    }

    .lightbox-close {
        top: -40px;
        width: 35px;
        height: 35px;
        font-size: var(--text-base);
    }

    .lightbox-caption {
        font-size: var(--text-sm);
        bottom: -40px;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .photo-item:hover {
        transform: none;
        box-shadow: var(--shadow);
    }

    .photo-item:hover img {
        transform: none;
    }

    .photo-overlay {
        transform: translateY(0);
        background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
    }

    .lightbox-nav,
    .lightbox-close {
        background: rgba(255, 255, 255, 0.95);
    }
}

/* 
News Page Styles */
.news-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.news-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), var(--primary-light));
    border-radius: 1px;
}

.news-item {
    position: relative;
    margin-bottom: var(--space-8);
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

.news-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.news-timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 2;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border: 3px solid var(--background);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    margin-left: 22px;
}

.timeline-year {
    margin-top: var(--space-1);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--primary-color);
    background: var(--background);
    padding: 2px 6px;
    border-radius: var(--radius-xs);
    border: 1px solid var(--border-light);
    white-space: nowrap;
}

.news-content {
    margin-left: 80px;
    background: var(--surface-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.news-content:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.news-header {
    margin-bottom: var(--space-3);
}

.news-date {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--primary-color);
    background: var(--primary-light);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.news-body {
    color: var(--text-primary);
}

.news-text {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.news-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.news-image-container {
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface);
    aspect-ratio: 16/9;
}

.news-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-image:hover {
    transform: scale(1.05);
}

/* Pagination Styles */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-8);
    padding: var(--space-4);
    background: var(--surface-tertiary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.pagination-btn:disabled {
    background: var(--text-tertiary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.pagination-info {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
}

/* Empty and Error States */
.empty-state,
.error-state {
    text-align: center;
    padding: var(--space-8);
    background: var(--surface-tertiary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    max-width: 600px;
    margin: 0 auto;
}

.empty-state h3,
.error-state h3 {
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.empty-state p,
.error-state p {
    color: var(--text-tertiary);
    margin-bottom: var(--space-4);
}

/* Responsive Design for News */
@media (max-width: 768px) {
    .news-timeline::before {
        left: 20px;
    }

    .timeline-dot {
        margin-left: 12px;
    }

    .news-content {
        margin-left: 60px;
        padding: var(--space-3);
    }

    .news-images {
        grid-template-columns: 1fr;
    }

    .pagination {
        flex-direction: column;
        gap: var(--space-2);
        text-align: center;
    }

    .pagination-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .news-timeline::before {
        left: 15px;
    }

    .timeline-dot {
        margin-left: 7px;
        width: 12px;
        height: 12px;
    }

    .timeline-year {
        font-size: 10px;
        padding: 1px 4px;
    }

    .news-content {
        margin-left: 45px;
        padding: var(--space-2);
    }

    .news-date {
        font-size: var(--text-xs);
        padding: 4px 8px;
    }

    .news-text {
        font-size: var(--text-sm);
    }
}

/* Loading 
Skeleton Styles */
.news-loading {
    max-width: 800px;
    margin: 0 auto;
}

.news-skeleton {
    background: var(--surface);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    padding: var(--space-4);
    position: relative;
    overflow: hidden;
    height: 120px;
}

.news-skeleton::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.4),
            transparent);
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.loading-skeleton {
    background: var(--surface);
    border-radius: var(--radius-sm);
    animation: skeleton-pulse 1.5s ease-in-out infinite alternate;
}

@keyframes skeleton-pulse {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0.4;
    }
}

/* Enhanced Mobile Interactions and Animations */

body.is-scrolling {
    pointer-events: none;
}

/* Ripple Effect for Touch Interactions */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }

    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* Enhanced Mobile Touch Interactions */
@media (max-width: 768px) {

    /* Ensure minimum touch target size of 44px */
    .btn,
    .nav-menu a,
    .hamburger,
    .carousel-btn,
    .lightbox-nav {
        min-height: 44px;
        min-width: 44px;
    }

    /* Enhanced mobile carousel styles */
    .carousel-container {
        touch-action: pan-y pinch-zoom;
        -webkit-overflow-scrolling: touch;
    }

    .carousel-slide {
        will-change: transform, opacity;
    }

    /* Mobile-optimized photo gallery */
    .photo-item {
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    /* Enhanced mobile lightbox */
    .lightbox {
        touch-action: none;
    }

    .lightbox-content {
        touch-action: pan-x pan-y;
    }

    .lightbox-image {
        will-change: transform, opacity;
        touch-action: none;
    }

    /* Mobile-specific animations */
    .nav-menu a {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }

    /* Improved mobile scrolling */
    body {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    /* Mobile-optimized cards */
    .card {
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
}

/* Enhanced breakpoints for better responsive design */
@media (max-width: 640px) {

    /* Small mobile devices */
    .container {
        padding: 0 var(--space-2);
    }

    /* Adjust carousel for small screens */
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: var(--text-lg);
    }

    .carousel-indicators {
        bottom: var(--space-2);
    }

    /* Mobile typography adjustments */
    h1 {
        font-size: var(--text-3xl);
        line-height: 1.2;
    }

    h2 {
        font-size: var(--text-2xl);
        line-height: 1.3;
    }

    /* Mobile button adjustments */
    .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-sm);
        min-height: 44px;
    }

    /* Mobile card adjustments */
    .card {
        padding: var(--space-3);
        margin-bottom: var(--space-3);
    }
}

@media (max-width: 375px) {

    /* Extra small devices (iPhone SE, etc.) */
    .nav-container {
        height: 80px;
        padding: 0 var(--space-2);
    }

    .navbar {
        height: 80px;
    }

    .nav-menu {
        top: 80px;
        height: calc(100vh - 80px);
    }

    .nav-logo h1 {
        font-size: var(--text-lg);
    }

    .nav-logo p {
        font-size: var(--text-xs);
    }

    /* Ultra-compact spacing */
    .container {
        padding: 0 var(--space-1);
    }

    .card {
        padding: var(--space-2);
    }
}

/* Landscape orientation optimizations */
@media (max-height: 500px) and (orientation: landscape) {
    .nav-menu {
        height: calc(100vh - 80px);
        padding: var(--space-3) 0;
    }

    .nav-menu a {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-base);
    }

    .carousel-container {
        height: 60vh;
    }
}

/* Smooth scrolling with enhanced behavior */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    /* Account for fixed navbar */
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .carousel-slide {
        transition: none !important;
    }

    .nav-menu.active li {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}


/* FORCE NAVBAR FIXED POSITIONING - ABSOLUTE HIGHEST PRIORITY */
nav.navbar,
.navbar,
nav[class*="navbar"] {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 999999 !important;
    transform: none !important;
    display: block !important;
}