/* ==========================================================================
   VHCI Lab Website - Main Stylesheet
   Virtual Human Computer Interaction Lab
   Lagos Business School, Pan-Atlantic University
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Brand Colors - Vibrant Mix */
    --color-primary: #1a365d;
    --color-primary-light: #2c5282;
    --color-primary-dark: #0f2442;
    --color-accent: #3182ce;
    --color-accent-light: #63b3ed;
    --color-red: #c53030;
    --color-red-light: #e53e3e;
    --color-red-dark: #9b2c2c;
    --color-yellow: #d69e2e;
    --color-teal: #319795;
    --color-purple: #805ad5;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f7fafc;
    --color-gray-100: #edf2f7;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e0;
    --color-gray-400: #a0aec0;
    --color-gray-500: #718096;
    --color-gray-600: #4a5568;
    --color-gray-700: #2d3748;
    --color-gray-800: #1a202c;
    --color-gray-900: #171923;
    
    /* Semantic Colors */
    --color-success: #38a169;
    --color-warning: #d69e2e;
    --color-error: #e53e3e;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Space Grotesk', var(--font-primary);
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Layout */
    --container-max: 1280px;
    --header-height: 80px;
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gray-900);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

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

.text-gradient {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --------------------------------------------------------------------------
   Layout Components
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-24) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-tag {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-red);
    margin-bottom: var(--space-4);
}

.research .section-tag { color: var(--color-accent); }
.projects .section-tag { color: var(--color-red); }
.team .section-tag { color: var(--color-teal); }
.contact .section-tag { color: var(--color-purple); }

.section-title {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
}

.section-desc {
    font-size: var(--text-lg);
    color: var(--color-gray-500);
    max-width: 640px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-100);
    z-index: 1000;
    transition: all var(--transition-base);
}

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

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--color-primary);
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--text-lg);
}

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

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

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-fast);
}

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

.nav-link-cta {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
}

.nav-link-cta:hover {
    background: var(--color-primary-light);
}

.nav-link-cta::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-gray-700);
    transition: all var(--transition-fast);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, var(--color-red-dark) 100%);
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(15, 36, 66, 0.4) 100%);
}

.hero-orbs {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--color-red);
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--color-yellow);
    bottom: 20%;
    left: 10%;
    animation-delay: -7s;
}

.orb-3 {
    width: 200px;
    height: 200px;
    background: var(--color-teal);
    top: 50%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-30px, -10px) scale(1.02); }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: var(--space-8);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    color: var(--color-white);
    margin-bottom: var(--space-6);
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--color-white);
    margin-bottom: var(--space-6);
    line-height: 1.1;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-red-light) 50%, var(--color-yellow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-accent:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Stats Section
   -------------------------------------------------------------------------- */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    background: rgba(255, 255, 255, 0.2);
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about {
    background: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-content {
    padding-right: var(--space-8);
}

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

.about-text .lead {
    font-size: var(--text-xl);
    color: var(--color-gray-700);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.about-text p {
    color: var(--color-gray-500);
    line-height: 1.8;
}

.about-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.vision-card {
    padding: var(--space-6);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.vision-card:hover {
    background: var(--color-primary);
    transform: translateY(-4px);
}

.vision-card:hover * {
    color: var(--color-white);
}

.vision-icon {
    font-size: var(--text-2xl);
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.vision-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.vision-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: 0;
}

.about-visual {
    position: relative;
}

.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.about-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, transparent 50%);
    opacity: 0.2;
    z-index: 1;
}

.about-logo-card {
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.about-logo-card img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
}

/* --------------------------------------------------------------------------
   Research Section
   -------------------------------------------------------------------------- */
.research {
    background: var(--color-gray-50);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.research-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.research-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
}

.card-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

/* Colorful card icons */
.research-card:nth-child(2) .card-icon { background: var(--color-red); }
.research-card:nth-child(3) .card-icon { background: var(--color-teal); }
.research-card:nth-child(4) .card-icon { background: var(--color-purple); }
.research-card:nth-child(5) .card-icon { background: var(--color-yellow); }
.research-card:nth-child(6) .card-icon { background: var(--color-red-light); }

.research-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-4);
}

.research-card p {
    color: var(--color-gray-500);
    font-size: var(--text-sm);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.card-tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: rgba(49, 130, 206, 0.1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Projects Section
   -------------------------------------------------------------------------- */
.projects {
    background: var(--color-white);
}

.project-feature {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-12);
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-12);
}

.project-visual {
    position: relative;
    min-height: 400px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
}

.project-badge {
    position: absolute;
    top: var(--space-6);
    left: var(--space-6);
    background: var(--color-white);
    color: var(--color-primary);
    font-weight: 700;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
}

.project-pattern {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.project-content {
    padding: var(--space-10);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.project-status {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

.project-status.active {
    background: rgba(56, 161, 105, 0.1);
    color: var(--color-success);
}

.project-duration {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}

.project-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.project-desc {
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.project-partner {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.partner-label {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}

.partner-name {
    font-weight: 600;
    color: var(--color-primary);
}

.project-questions {
    list-style: disc;
    padding-left: var(--space-5);
}

.project-questions li {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-2);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.project-card {
    background: var(--color-gray-50);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.project-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.project-logo {
    font-weight: 700;
    color: var(--color-primary);
}

.project-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
}

.project-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.project-location {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}

/* --------------------------------------------------------------------------
   Impact Section
   -------------------------------------------------------------------------- */
.impact {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-red-dark) 100%);
    color: var(--color-white);
    overflow: hidden;
}

.impact-bg {
    position: absolute;
    inset: 0;
}

.impact-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top right, var(--color-primary-light) 0%, transparent 50%),
                radial-gradient(ellipse at bottom left, var(--color-accent) 0%, transparent 50%);
    opacity: 0.3;
}

.impact .section-header.light .section-tag {
    color: var(--color-accent-light);
}

.impact .section-header.light .section-title {
    color: var(--color-white);
}

.gradient-text-light {
    background: linear-gradient(135deg, var(--color-accent-light) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-16);
    position: relative;
    z-index: 1;
}

.impact-card {
    text-align: center;
    padding: var(--space-8);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.impact-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.impact-number {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-2);
}

.impact-label {
    font-size: var(--text-base);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-1);
}

.impact-source {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
}

/* Partners */
.partners-section {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-top: var(--space-12);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.partners-title {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-8);
    font-weight: 400;
}

.partners-grid {
    display: flex;
    justify-content: center;
    gap: var(--space-12);
    flex-wrap: wrap;
}

.partner-item {
    text-align: center;
}

.partner-logo {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-2);
}

.partner-name {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Team Section
   -------------------------------------------------------------------------- */
.team {
    background: var(--color-gray-50);
}

.team-featured {
    margin-bottom: var(--space-16);
}

.team-director {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-12);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.director-image {
    position: relative;
    background: var(--color-primary);
}

.director-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.image-placeholder span {
    font-family: var(--font-display);
    font-size: var(--text-6xl);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.3);
}

.director-info {
    padding: var(--space-10);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.director-role {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

.director-name {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-1);
}

.director-title {
    font-size: var(--text-base);
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
}

.director-bio {
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.director-expertise {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.expertise-tag {
    font-size: var(--text-sm);
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

.director-achievements {
    display: flex;
    gap: var(--space-6);
}

.achievement {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.achievement strong {
    display: block;
    font-size: var(--text-base);
    color: var(--color-primary);
}

/* Team Members Grid */
.team-members {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.team-card {
    background: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

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

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    overflow: hidden;
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-avatar span {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-white);
}

.team-card h4 {
    font-size: var(--text-base);
    margin-bottom: var(--space-1);
}

.team-role {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    display: block;
    margin-bottom: var(--space-3);
}

.team-skills {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-1);
}

.team-skills span {
    font-size: var(--text-xs);
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
}

/* Join Card */
.join-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
}

.join-card h4,
.join-card p {
    color: var(--color-white);
}

.join-card p {
    opacity: 0.8;
    margin-bottom: var(--space-4);
}

.join-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    font-size: var(--text-3xl);
}

.join-link {
    font-weight: 600;
    color: var(--color-accent-light);
}

.join-link:hover {
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact {
    background: var(--color-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.contact-info .section-tag {
    text-align: left;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: var(--space-6);
}

.contact-desc {
    color: var(--color-gray-500);
    margin-bottom: var(--space-8);
}

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

.contact-item {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    margin-bottom: var(--space-1);
}

.contact-text a,
.contact-text span {
    color: var(--color-gray-700);
    line-height: 1.5;
}

.contact-text a:hover {
    color: var(--color-accent);
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 44px;
    height: 44px;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-600);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Contact Visual */
.contact-visual {
    position: relative;
    height: 400px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.visual-sphere {
    position: relative;
    width: 200px;
    height: 200px;
}

.sphere-ring {
    position: absolute;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: spin 20s linear infinite;
}

.ring-1 {
    inset: 0;
    animation-duration: 20s;
}

.ring-2 {
    inset: 20px;
    animation-duration: 15s;
    animation-direction: reverse;
}

.ring-3 {
    inset: 40px;
    animation-duration: 10s;
}

.sphere-core {
    position: absolute;
    inset: 60px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--color-gray-800);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--color-gray-800);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.footer-logo .logo-icon {
    background: var(--color-white);
    color: var(--color-primary);
}

.footer-brand p {
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: 0;
}

.footer-links {
    display: flex;
    gap: var(--space-16);
}

.footer-col h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-col a {
    display: block;
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-white);
}

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

.footer-bottom p {
    font-size: var(--text-sm);
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .about-grid,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .about-content {
        padding-right: 0;
    }
    
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .impact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-director {
        grid-template-columns: 1fr;
    }
    
    .team-members {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .project-feature {
        grid-template-columns: 1fr;
    }
    
    .project-visual {
        min-height: 250px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-4);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-6);
    }
    
    .stat-divider {
        width: 50px;
        height: 1px;
        margin: 0 auto;
    }
    
    .section {
        padding: var(--space-16) 0;
    }
    
    .section-title {
        font-size: var(--text-3xl);
    }
    
    .research-grid,
    .impact-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .about-vision {
        grid-template-columns: 1fr;
    }
    
    .team-members {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-8);
    }
    
    .partners-grid {
        gap: var(--space-6);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .director-info {
        padding: var(--space-6);
    }
    
    .director-achievements {
        flex-direction: column;
        gap: var(--space-4);
    }
}

/* --------------------------------------------------------------------------
   Inner Page Styles
   -------------------------------------------------------------------------- */
.page-header {
    padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-red-dark) 100%);
    color: var(--color-white);
    text-align: center;
}

.page-header h1 {
    font-size: var(--text-4xl);
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.page-header .section-tag {
    color: rgba(255, 255, 255, 0.8);
}

.page-subtitle {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

/* Research Area Detail */
.research-area {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-12);
    align-items: center;
    padding: var(--space-16) 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.research-area.reverse {
    grid-template-columns: 400px 1fr;
}

.research-area.reverse .research-area-content {
    order: 2;
}

.research-area.reverse .research-area-image {
    order: 1;
}

.research-area-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
}

.research-area-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-white);
}

.research-area h2 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.research-area .lead {
    font-size: var(--text-xl);
    color: var(--color-gray-600);
    margin-bottom: var(--space-4);
}

.research-area p {
    color: var(--color-gray-500);
    line-height: 1.8;
}

.research-area h3 {
    font-size: var(--text-lg);
    margin: var(--space-6) 0 var(--space-3);
}

.research-questions {
    list-style: disc;
    padding-left: var(--space-6);
}

.research-questions li {
    color: var(--color-gray-600);
    margin-bottom: var(--space-2);
    line-height: 1.6;
}

.research-area-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.research-area-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Methodology Grid */
.methodology-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.methodology-card {
    background: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.methodology-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
    color: var(--color-primary);
}

.methodology-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: 0;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-red-dark) 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: var(--text-3xl);
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.cta-content p {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-8);
}

/* Nav active state */
.nav-link.active {
    color: var(--color-primary);
}

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

@media (max-width: 1024px) {
    .research-area,
    .research-area.reverse {
        grid-template-columns: 1fr;
    }
    
    .research-area.reverse .research-area-content,
    .research-area.reverse .research-area-image {
        order: unset;
    }
    
    .methodology-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .methodology-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header h1 {
        font-size: var(--text-3xl);
    }
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

/* ==========================================================================
   SUBPAGE STYLES - Research, Team, Contact Pages
   ========================================================================== */

/* --------------------------------------------------------------------------
   Page Hero (Subpages)
   -------------------------------------------------------------------------- */
.page-hero {
    position: relative;
    padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
    min-height: 50vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.page-hero .hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    z-index: -1;
}

.page-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: var(--text-5xl);
    color: var(--color-white);
    margin-bottom: var(--space-6);
}

.page-subtitle {
    font-size: var(--text-xl);
    color: rgba(255, 255, 255, 0.8);
    max-width: 640px;
    margin: 0 auto;
}

.page-hero-short {
    min-height: 40vh;
}

@media (max-width: 768px) {
    .page-title {
        font-size: var(--text-3xl);
    }
    .page-subtitle {
        font-size: var(--text-lg);
    }
}

/* --------------------------------------------------------------------------
   Research Page Styles
   -------------------------------------------------------------------------- */
.research-detail {
    background: var(--color-gray-50);
}

.research-areas-detailed {
    display: flex;
    flex-direction: column;
    gap: var(--space-16);
}

.research-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--space-12);
    padding: var(--space-12);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.research-item:nth-child(even) {
    direction: rtl;
}

.research-item:nth-child(even) > * {
    direction: ltr;
}

.research-item-visual {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.research-icon-large {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.research-icon-large svg {
    width: 60px;
    height: 60px;
}

.research-item-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.research-tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    background: rgba(49, 130, 206, 0.1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    width: fit-content;
}

.research-item h2 {
    font-size: var(--text-3xl);
    color: var(--color-gray-900);
}

.research-lead {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    line-height: 1.7;
}

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

.research-details h3 {
    font-size: var(--text-lg);
    color: var(--color-gray-800);
    margin: var(--space-6) 0 var(--space-3);
}

.research-details h3:first-child {
    margin-top: 0;
}

.research-details ul {
    list-style: disc;
    padding-left: var(--space-6);
    color: var(--color-gray-600);
}

.research-details li {
    margin-bottom: var(--space-2);
}

.research-details p {
    color: var(--color-gray-600);
}

@media (max-width: 900px) {
    .research-item {
        grid-template-columns: 1fr;
    }
    .research-item:nth-child(even) {
        direction: ltr;
    }
    .research-item-visual {
        justify-content: flex-start;
    }
}

/* Facilities Section */
.facilities {
    background: var(--color-white);
}

.facilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.facility-card {
    background: var(--color-gray-50);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.facility-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.facility-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.facility-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

@media (max-width: 900px) {
    .facilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .facilities-grid {
        grid-template-columns: 1fr;
    }
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.gallery-item {
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    text-align: center;
}

.cta-content h2 {
    color: var(--color-white);
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-lg);
    margin-bottom: var(--space-8);
}

/* --------------------------------------------------------------------------
   Team Page Styles
   -------------------------------------------------------------------------- */
.team-director-section {
    background: var(--color-white);
}

.director-full {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--space-12);
    align-items: start;
}

.director-photo-large {
    position: sticky;
    top: calc(var(--header-height) + var(--space-6));
}

.director-photo-large img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

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

.director-name-large {
    font-size: var(--text-4xl);
    color: var(--color-gray-900);
}

.director-title-large {
    font-size: var(--text-xl);
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.director-bio-full p {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-4);
}

.director-expertise-full,
.director-achievements-full {
    margin-top: var(--space-8);
}

.director-expertise-full h3,
.director-achievements-full h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-4);
}

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

.expertise-tag {
    background: rgba(49, 130, 206, 0.1);
    color: var(--color-accent);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
}

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

.achievement-item {
    background: var(--color-gray-50);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    text-align: center;
}

.achievement-item strong {
    display: block;
    font-size: var(--text-xl);
    color: var(--color-accent);
    margin-bottom: var(--space-1);
}

.achievement-item span {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

@media (max-width: 900px) {
    .director-full {
        grid-template-columns: 1fr;
    }
    .director-photo-large {
        position: static;
        max-width: 350px;
    }
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Team Photo Section */
.team-photo-section {
    background: var(--color-gray-50);
    padding: var(--space-12) 0;
}

.team-photo-wrapper {
    text-align: center;
}

.team-photo-full {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.team-photo-caption {
    margin-top: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    font-style: italic;
}

/* Research Team Grid */
.team-grid-full {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.team-member-card {
    display: flex;
    gap: var(--space-6);
    padding: var(--space-8);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.team-member-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.team-member-card.featured .member-avatar {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
}

.team-member-card.featured h3,
.team-member-card.featured .member-role,
.team-member-card.featured .member-bio {
    color: var(--color-white);
}

.team-member-card.featured .member-role {
    color: rgba(255, 255, 255, 0.9);
}

.team-member-card.featured .member-bio {
    color: rgba(255, 255, 255, 0.8);
}

.team-member-card.featured .member-skills span {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
}

.member-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--text-xl);
    font-weight: 700;
    flex-shrink: 0;
}

.member-info h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-1);
}

.member-role {
    font-size: var(--text-sm);
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: var(--space-3);
}

.member-bio {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-4);
}

.member-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.member-skills span {
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
}

@media (max-width: 900px) {
    .team-grid-full {
        grid-template-columns: 1fr;
    }
    .team-member-card.featured {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .team-member-card {
        flex-direction: column;
        text-align: center;
    }
    .member-avatar {
        margin: 0 auto;
    }
    .member-skills {
        justify-content: center;
    }
}

/* Join Section */
.join-section {
    background: var(--color-gray-50);
}

.join-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-12);
    align-items: center;
}

.join-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.join-text p {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
}

.join-roles {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin: var(--space-6) 0;
}

.role-item {
    padding: var(--space-4);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent);
}

.role-item h3 {
    font-size: var(--text-base);
    margin-bottom: var(--space-1);
}

.role-item p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin: 0;
}

.join-visual {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.join-visual img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

@media (max-width: 900px) {
    .join-content {
        grid-template-columns: 1fr;
    }
    .join-visual {
        order: -1;
    }
}

/* --------------------------------------------------------------------------
   Contact Page Styles
   -------------------------------------------------------------------------- */
.contact-page {
    background: var(--color-gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--space-12);
}

.contact-info-full {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.contact-card-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.contact-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.contact-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-2);
}

.contact-link {
    font-size: var(--text-lg);
    color: var(--color-accent);
    font-weight: 600;
}

.contact-link:hover {
    text-decoration: underline;
}

.contact-address {
    font-style: normal;
    font-size: var(--text-base);
    color: var(--color-gray-700);
    line-height: 1.8;
}

.contact-subtext {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.social-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.social-card h3 {
    color: var(--color-white);
}

.social-links-large {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.social-link-large {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-white);
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.social-link-large:hover {
    background: rgba(255, 255, 255, 0.2);
}

.social-link-large span {
    font-weight: 500;
}

/* Inquiry Types */
.inquiry-types h2 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-8);
}

.inquiry-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.inquiry-card {
    background: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.inquiry-icon {
    font-size: 2rem;
    margin-bottom: var(--space-3);
}

.inquiry-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.inquiry-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-4);
}

.inquiry-link {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent);
}

.inquiry-link:hover {
    text-decoration: underline;
}

@media (max-width: 1100px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .contact-info-full {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
    .social-card {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .contact-info-full {
        grid-template-columns: 1fr;
    }
    .social-card {
        grid-column: span 1;
    }
    .inquiry-cards {
        grid-template-columns: 1fr;
    }
}

/* Map Section */
.map-section {
    background: var(--color-white);
    padding: var(--space-12) 0;
}

.map-placeholder {
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-200) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-16);
    text-align: center;
}

.map-content h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.map-content p {
    color: var(--color-gray-600);
    margin-bottom: var(--space-2);
}

.map-content .btn {
    margin-top: var(--space-6);
}

/* Active nav state */
.nav-link.active {
    color: var(--color-accent);
}