/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
    /* Color Palette (Deep Space & Bio-emerald) */
    --bg-base: #07090e;
    --bg-surface: #0f131a;
    --bg-surface-glass: rgba(15, 19, 26, 0.75);
    --bg-panel: #161c24;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(52, 211, 153, 0.15);
    
    --primary: #10b981; /* Emerald */
    --primary-hover: #059669;
    --primary-glow: rgba(16, 185, 129, 0.4);
    
    --secondary: #0284c7; /* Ocean Sky */
    --secondary-hover: #0369a1;
    --secondary-glow: rgba(2, 132, 199, 0.4);
    
    --accent: #6366f1; /* DNA Helix Indigo */
    
    --txt-main: #f3f4f6; /* Off-white */
    --txt-muted: #9ca3af; /* Light Gray */
    --txt-dark: #6b7280; /* Darker Gray */
    
    /* Font Families */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    /* Layout Details */
    --nav-height: 80px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    /* Dynamic Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-main: 0 10px 30px -15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px 0px rgba(16, 185, 129, 0.15);
}

/* ==========================================================================
   RESET & GLOBAL STYLES
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    background-color: var(--bg-base);
    color: var(--txt-main);
    font-family: var(--font-body);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--txt-main);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-panel);
    border: 2px solid var(--bg-base);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--txt-dark);
}

/* ==========================================================================
   UTILITY & ANIMATION CLASSES
   ========================================================================== */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section {
    padding: 120px 0;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    max-width: 700px;
    margin-bottom: 60px;
    text-align: left;
}

.section-subtitle {
    font-family: var(--font-mono);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary);
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 20px;
}

.section-description {
    color: var(--txt-muted);
    font-size: 18px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-weight: 600;
    font-size: 15px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 14px 0 var(--primary-glow);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 var(--primary-glow);
    color: #ffffff;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--txt-main);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--txt-muted);
    transform: translateY(-2px);
}

.btn-text {
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    color: var(--primary);
    gap: 4px;
    transition: var(--transition-fast);
}

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

.btn-text i {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.btn-text:hover i {
    transform: translate(2px, -2px);
}

/* Scroll reveal initial states */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow) var(--transition-medium), transform var(--transition-slow) var(--transition-medium);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: var(--transition-medium);
}

.navbar.scrolled {
    background-color: var(--bg-surface-glass);
    backdrop-filter: blur(16px);
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-container {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--txt-main);
    letter-spacing: -0.03em;
}

.logo:hover {
    color: #ffffff;
}

.logo-accent {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--txt-muted);
    position: relative;
    padding: 6px 0;
}

.nav-link:hover {
    color: var(--txt-main);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition-fast);
}

.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after,
.nav-link:hover::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    color: var(--txt-main);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    background-color: var(--bg-base);
    overflow: hidden;
}

.hero-canvas-container {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
}

#dna-canvas {
    width: 100%;
    height: 100%;
}

.hero-bg-glows {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
}

.glow-1 {
    width: 400px;
    height: 400px;
    background-color: var(--primary);
    top: -50px;
    left: -100px;
    animation: pulseGlow 12s infinite alternate;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background-color: var(--secondary);
    bottom: -100px;
    right: 10%;
    animation: pulseGlow 18s infinite alternate-reverse;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 650px;
    padding-left: 24px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--primary);
    margin-bottom: 24px;
    gap: 8px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary);
    animation: pulseDot 2s infinite;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-tagline {
    font-size: 18px;
    color: var(--txt-muted);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--txt-dark);
    z-index: 2;
}

.mouse {
    width: 20px;
    height: 32px;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--primary);
    border-radius: 2px;
    animation: scrollWheel 1.5s infinite;
}

/* Animations */
@keyframes pulseDot {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(1); opacity: 0.5; }
}

@keyframes pulseGlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.2); }
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(8px); opacity: 0; }
}

/* ==========================================================================
   PHILOSOPHY SECTION
   ========================================================================== */
.philosophy-layout {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
}

.philosophy-text {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.philosophy-text p {
    font-size: 17px;
    color: var(--txt-muted);
    margin-bottom: 24px;
}

.philosophy-text .lead-text {
    font-size: 22px;
    color: var(--txt-main);
    font-weight: 500;
    line-height: 1.5;
}

.creations-credit {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--accent);
    margin-top: 40px;
    font-size: 13px;
    color: var(--txt-dark);
}

.creations-credit a {
    color: var(--txt-muted);
    text-decoration: underline;
}

.creations-credit a:hover {
    color: var(--primary);
}

.credit-icon {
    width: 20px;
    height: 20px;
    color: var(--accent);
    flex-shrink: 0;
}

.philosophy-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: var(--border-radius-md);
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 10% 10%, var(--border-glow) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition-medium);
    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

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

.card-icon-wrapper {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 20px;
}

.stat-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.stat-card p {
    color: var(--txt-muted);
    font-size: 14px;
}

/* ==========================================================================
   RESEARCH SECTION
   ========================================================================== */
.research-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.research-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    position: relative;
    min-height: 360px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-main);
}

.research-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.08;
    filter: saturate(0.2) contrast(1.2);
    transition: var(--transition-slow);
}

.research-card:hover {
    border-color: var(--primary-glow);
    box-shadow: var(--shadow-glow);
}

.research-card:hover .research-card-bg {
    opacity: 0.15;
    transform: scale(1.05);
}

.research-card-content {
    padding: 40px;
    position: relative;
    z-index: 2;
    background: linear-gradient(180deg, transparent 0%, rgba(15, 19, 26, 0.95) 60%);
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.research-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.research-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
    font-weight: 700;
}

.research-card p {
    color: var(--txt-muted);
    font-size: 15px;
    margin-bottom: 24px;
}

.research-badge {
    align-self: flex-start;
    padding: 4px 12px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--txt-muted);
}

.research-card-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    margin-top: 8px;
}

.research-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 14px;
}

.research-link i {
    width: 14px;
    height: 14px;
}

/* ==========================================================================
   TEAM SECTION
   ========================================================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 80px;
}

.member-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.member-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.member-img-wrapper {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    margin-top: 32px;
    border: 3px solid var(--border-color);
    background-color: var(--bg-panel);
    transition: var(--transition-medium);
}

.member-card:hover .member-img-wrapper {
    border-color: var(--primary);
}

.member-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.member-card:hover .member-img-wrapper img {
    transform: scale(1.05);
}

.member-info {
    padding: 24px 32px 32px;
    width: 100%;
}

.member-info h3 {
    font-size: 22px;
    margin-bottom: 4px;
}

.member-role {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--primary);
    display: block;
    margin-bottom: 16px;
    font-weight: 500;
}

.member-bio {
    color: var(--txt-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.member-links {
    display: flex;
    gap: 16px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    justify-content: center;
}

.member-links a {
    color: var(--txt-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
}

.member-links a:hover {
    color: #ffffff;
    background-color: var(--primary);
    border-color: var(--primary);
}

/* Collapsible Alumni Styling */
.alumni-section {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--bg-surface);
    overflow: hidden;
}

.alumni-header-btn {
    width: 100%;
    padding: 24px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--txt-main);
    transition: var(--transition-fast);
}

.alumni-header-btn:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.alumni-toggle-icon {
    display: flex;
    align-items: center;
    color: var(--txt-muted);
    transition: transform var(--transition-medium);
}

.alumni-section.expanded .alumni-toggle-icon {
    transform: rotate(180deg);
}

.alumni-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow) cubic-bezier(0, 1, 0, 1);
    padding: 0 32px;
}

.alumni-section.expanded .alumni-content {
    max-height: 2000px; /* high value to accommodate content */
    padding-bottom: 40px;
    transition: max-height var(--transition-slow) cubic-bezier(1, 0, 1, 0);
}

.alumni-filters {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--txt-muted);
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.02);
    transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    color: #ffffff;
    background-color: var(--primary);
    border-color: var(--primary);
}

.alumni-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.alumnus-card {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.alumnus-card.hidden {
    display: none;
    opacity: 0;
}

.alumnus-img-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 16px;
    border: 2px solid var(--border-color);
    background-color: var(--bg-surface);
}

.alumnus-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.alumnus-info h4 {
    font-size: 15px;
    margin-bottom: 4px;
}

.alumnus-role {
    font-size: 12px;
    color: var(--primary);
    margin-bottom: 2px;
}

.alumnus-duration {
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--txt-dark);
}

/* ==========================================================================
   PUBLICATIONS SECTION
   ========================================================================== */
.pub-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    gap: 24px;
}

.pub-search-wrapper {
    position: relative;
    flex-grow: 1;
    max-width: 450px;
}

.pub-search-wrapper input {
    width: 100%;
    padding: 12px 16px 12px 48px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--txt-main);
    font-family: var(--font-body);
    font-size: 15px;
    transition: var(--transition-fast);
}

.pub-search-wrapper input:focus {
    border-color: var(--primary);
    outline: none;
    background-color: var(--bg-panel);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.search-icon {
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    color: var(--txt-muted);
    width: 20px;
    height: 20px;
}

.pub-filter-tabs {
    display: flex;
    gap: 8px;
}

.pub-tab {
    padding: 12px 20px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 14px;
    color: var(--txt-muted);
    border: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    transition: var(--transition-fast);
}

.pub-tab:hover,
.pub-tab.active {
    color: #ffffff;
    background-color: var(--primary);
    border-color: var(--primary);
}

.publications-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pub-item {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 32px;
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
}

.pub-item.hidden {
    display: none;
}

.pub-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background-color: var(--bg-panel);
    transform: translateX(4px);
}

.pub-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.pub-year {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--primary);
    font-size: 15px;
}

.pub-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.pub-badge i {
    width: 10px;
    height: 10px;
}

.badge-oa {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--primary);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-featured {
    background-color: rgba(2, 132, 199, 0.1);
    color: var(--secondary);
    border: 1px solid rgba(2, 132, 199, 0.2);
}

.pub-title {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 8px;
}

.pub-authors {
    color: var(--txt-muted);
    font-size: 15px;
    margin-bottom: 4px;
}

.author-highlight {
    color: var(--txt-main);
    font-weight: 600;
}

.pub-journal {
    font-size: 14px;
    color: var(--txt-dark);
    margin-bottom: 20px;
}

.pub-links {
    display: flex;
    gap: 12px;
}

.pub-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition-fast);
}

.pub-link-btn i {
    width: 14px;
    height: 14px;
}

.doi-btn {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--txt-main);
}

.doi-btn:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--txt-muted);
}

.cite-btn {
    background-color: transparent;
    border: 1px solid transparent;
    color: var(--txt-muted);
}

.cite-btn:hover {
    color: #ffffff;
    background-color: rgba(255,255,255,0.02);
}

.pub-footnote {
    text-align: center;
    font-size: 13px;
    color: var(--txt-dark);
    margin-top: 40px;
}

/* ==========================================================================
   NEWS SECTION
   ========================================================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline-bar {
    position: absolute;
    top: 0;
    left: 120px;
    width: 2px;
    height: 100%;
    background-color: var(--border-color);
}

.timeline-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    transition: height 0.1s ease-out;
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    gap: 60px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-date {
    width: 90px;
    text-align: right;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    padding-top: 4px;
    flex-shrink: 0;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    background-color: var(--bg-base);
    border: 3px solid var(--border-color);
    border-radius: 50%;
    position: absolute;
    left: 113px;
    top: 8px;
    z-index: 2;
    transition: border-color var(--transition-medium), background-color var(--transition-medium);
}

.timeline-item.active .timeline-dot {
    border-color: var(--primary);
    background-color: var(--primary);
}

.timeline-content {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
    flex-grow: 1;
    transition: var(--transition-medium);
}

.timeline-content:hover {
    border-color: var(--primary-glow);
    transform: translateY(-2px);
}

.timeline-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.timeline-content p {
    color: var(--txt-muted);
    font-size: 14px;
    margin-bottom: 12px;
}

.timeline-actions {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

/* ==========================================================================
   TEACHING SECTION
   ========================================================================== */
.teaching-content {
    max-width: 800px;
    margin: 0 auto;
}

.teaching-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.teaching-badge {
    display: inline-block;
    padding: 4px 16px;
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--accent);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 24px;
}

.teaching-card .lead-text {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
}

.teaching-card p {
    color: var(--txt-muted);
    max-width: 600px;
    margin: 0 auto 32px auto;
}

.teaching-links {
    display: flex;
    justify-content: center;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
}

.contact-info-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.info-text h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.info-text p, 
.info-text a {
    color: var(--txt-muted);
    font-size: 15px;
}

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

.contact-form-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 48px;
}

.contact-form-card h3 {
    font-size: 24px;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--txt-muted);
    margin-bottom: 8px;
}

input, textarea {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--txt-main);
    font-family: var(--font-body);
    font-size: 15px;
    transition: var(--transition-fast);
}

input:focus, textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   FOOTER SECTION
   ========================================================================== */
.footer {
    background-color: #040609;
    padding: 60px 0 30px 0;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.footer-brand {
    text-align: center;
}

.footer-brand .logo {
    display: inline-block;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--txt-dark);
    font-size: 14px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--txt-dark);
}

.back-to-top {
    width: 40px;
    height: 40px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--txt-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.back-to-top:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
    transform: translateY(-2px);
}

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVENESS)
   ========================================================================== */
@media screen and (max-width: 1024px) {
    .hero-title {
        font-size: 52px;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .alumni-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .mobile-toggle {
        display: block;
        font-size: 24px;
        z-index: 1010;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--bg-surface);
        border-left: 1px solid var(--border-color);
        flex-direction: column;
        padding: 100px 40px;
        gap: 24px;
        z-index: 1005;
        transition: right var(--transition-medium);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    .hero-section {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding-top: var(--nav-height);
    }
    
    .hero-content {
        padding: 0;
        margin-top: 40px;
    }
    
    .hero-canvas-container {
        position: relative;
        width: 100%;
        height: 300px;
        order: -1;
    }
    
    .hero-title {
        font-size: 44px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto 50px auto;
    }
    
    .alumni-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pub-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .pub-search-wrapper {
        max-width: 100%;
    }
    
    .pub-filter-tabs {
        overflow-x: auto;
        padding-bottom: 8px;
    }
    
    .timeline-bar {
        left: 20px;
    }
    
    .timeline-dot {
        left: 13px;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 12px;
        padding-left: 40px;
    }
    
    .timeline-date {
        width: auto;
        text-align: left;
        padding-top: 0;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .alumni-grid {
        grid-template-columns: 1fr;
    }
    
    .pub-item {
        padding: 24px;
    }
    
    .pub-title {
        font-size: 18px;
    }
    
    .pub-links {
        flex-direction: column;
        gap: 8px;
    }
    
    .contact-info-card, .contact-form-card {
        padding: 24px;
    }
}

/* ==========================================================================
   LOGO WRAPPER, PHILOSOPHY ADJ, & TRIC-SEQ STYLING (NEW UPDATE)
   ========================================================================== */
.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--txt-main);
    letter-spacing: -0.03em;
}

.logo-wrapper:hover {
    color: #ffffff;
}

.logo-img {
    height: 38px;
    width: auto;
    object-fit: contain;
    border-radius: 4px;
    border: 2px solid #ffffff;
}

.philosophy-carousel {
    position: relative;
    width: 100%;
    max-width: 960px;
    margin: 20px auto 0;
}

.carousel-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: #080b11;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-main);
}

.carousel-track {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #080b11;
}

.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(15, 19, 26, 0.6);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--txt-main);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    z-index: 10;
}

.carousel-control:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 0 15px var(--primary-glow);
}

.carousel-control.prev {
    left: 16px;
}

.carousel-control.next {
    right: 16px;
}

.carousel-indicators {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.carousel-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: var(--transition-fast);
    padding: 0;
}

.carousel-indicator.active {
    background: var(--primary);
    width: 24px;
    border-radius: 4px;
    box-shadow: 0 0 8px var(--primary-glow);
}


.philosophy-cards-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 60px;
}

.philosophy-footer {
    margin-top: 60px;
    border-top: 1px solid var(--border-color);
    padding-top: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.funding-sources {
    text-align: center;
}

.funding-sources h4 {
    font-size: 14px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--txt-muted);
    margin-bottom: 20px;
}

.funding-img {
    max-height: 75px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    opacity: 0.65;
    filter: grayscale(1) invert(0.9);
    transition: var(--transition-fast);
}

.funding-img:hover {
    opacity: 1;
    filter: none;
}

/* TRIC-seq Styling */
.tric-seq-section {
    background: radial-gradient(circle at 80% 80%, rgba(2, 132, 199, 0.04) 0%, transparent 60%);
}

.tric-layout {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 60px;
    align-items: center;
}

.tric-text .lead-text {
    font-size: 22px;
    color: var(--txt-main);
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 24px;
}

.tric-text p {
    font-size: 16px;
    color: var(--txt-muted);
    margin-bottom: 24px;
}

.tric-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 32px 0;
}

.tric-feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.tric-feature-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    background-color: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.15);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tric-feature-icon i {
    width: 20px;
    height: 20px;
}

.tric-feature-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.tric-feature-item p {
    font-size: 14px;
    color: var(--txt-muted);
    margin-bottom: 0;
}

.tric-actions {
    display: flex;
    gap: 16px;
}

.tech-title-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.tric-logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.tric-figure {
    width: 100%;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-main);
    transition: var(--transition-medium);
}

.tric-media:hover .tric-figure {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.figure-wrapper {
    position: relative;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 16px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.figure-caption {
    font-size: 13px;
    color: var(--txt-dark);
    margin-top: 14px;
    line-height: 1.5;
    text-align: left;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 10px;
}

/* Responsive updates for Logo, Philosophy & TRIC-seq */
@media screen and (max-width: 1024px) {
    .tric-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media screen and (max-width: 768px) {
    .philosophy-cards-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .philosophy-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 32px;
    }
    
    .logo-wrapper {
        gap: 8px;
        font-size: 20px;
    }
    
    .logo-img {
        height: 32px;
    }
    
    .tric-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .carousel-container {
        aspect-ratio: 4 / 3;
    }
    
    .carousel-control {
        width: 36px;
        height: 36px;
    }
    
    .carousel-control.prev {
        left: 8px;
    }
    
    .carousel-control.next {
    }
}

/* ==========================================================================
   CUSTOM TEACHING & COURSE CARDS (NEW UPDATE)
   ========================================================================== */
.teaching-intro-wrapper {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px auto;
}

.teaching-intro-text {
    font-size: 18px;
    color: var(--txt-muted);
    line-height: 1.6;
}

.teaching-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.course-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 36px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.course-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    background-color: var(--bg-panel);
    box-shadow: var(--shadow-glow);
}

.course-icon-wrapper {
    width: 54px;
    height: 54px;
    background-color: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.15);
    color: var(--primary);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: var(--transition-fast);
}

.course-card:hover .course-icon-wrapper {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.course-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--txt-main);
    line-height: 1.3;
}

.course-role {
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    color: var(--primary);
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    display: inline-block;
}

.course-desc {
    color: var(--txt-muted);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 0;
}

.course-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--txt-dark);
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 2px 10px;
    border-radius: 4px;
}