/* ===================================
   CSS Variables & Root Styles
   =================================== */
:root {
    /* Color Palette - Space Theme */
    --primary-color: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --secondary-color: #06B6D4;
    --secondary-dark: #0891B2;
    --accent-color: #F59E0B;
    --accent-pink: #EC4899;

    /* Neutral Colors */
    --dark-bg: #0F172A;
    --dark-surface: #1E293B;
    --dark-elevated: #334155;
    --light-bg: #F8FAFC;
    --light-surface: #FFFFFF;

    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --text-light: #F8FAFC;
    --text-muted: #94A3B8;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-space: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--light-bg);
    overflow-x: hidden;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow-xl);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition-base);
    padding: 0.5rem 0;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    border-radius: 3px;
    transition: var(--transition-base);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 8rem 2rem 4rem;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: var(--gradient-space);
    z-index: -2;
}

.hero-background::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

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

.hero-background::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-content {
    max-width: 1000px;
    text-align: center;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    color: var(--text-light);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.title-line {
    display: block;
    animation: fadeInUp 1s ease-out backwards;
}

.title-line:nth-child(1) { animation-delay: 0.3s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out 0.5s backwards;
}

.hero-tech {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.7s backwards;
}

.btn {
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient-hero);
    color: var(--text-light);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.hero-logo {
    color: var(--text-muted);
    font-size: 0.875rem;
    animation: fadeInUp 1s ease-out 0.8s backwards;
}

.lab-name {
    font-weight: 600;
    color: var(--text-light);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 8px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* ===================================
   Section Styles
   =================================== */
.section {
    padding: var(--spacing-xl) 2rem;
}

.section-dark {
    background: var(--dark-bg);
    color: var(--text-light);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
}

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

.section-title {
    position: relative;
    display: inline-block;
    margin-bottom: 1rem;
}

.section-dark .section-title {
    color: var(--text-light);
}

.section-divider {
    width: 80px;
    height: 4px;
    background: var(--gradient-hero);
    margin: 0 auto 1.5rem;
    border-radius: var(--radius-sm);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.section-dark .section-description {
    color: var(--text-muted);
}

/* ===================================
   About Section
   =================================== */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.highlight-box {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border-left: 4px solid var(--primary-color);
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin: 2rem 0;
}

.highlight-box h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--light-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.vision-section {
    margin-top: var(--spacing-lg);
    background: var(--gradient-space);
    padding: var(--spacing-lg);
    border-radius: var(--radius-2xl);
    color: var(--text-light);
}

.vision-title {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.vision-quote {
    font-size: 1.5rem;
    font-style: italic;
    text-align: center;
    padding: 2rem;
    border-left: 4px solid var(--accent-color);
    margin: 2rem 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
}

.vision-content p {
    font-size: 1.125rem;
    color: var(--text-muted);
    text-align: center;
}

/* ===================================
   Team Section
   =================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
}

.team-card {
    background: var(--dark-surface);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-base);
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

.team-header {
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
}

.team-header h3 {
    font-size: 1.75rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.team-role {
    color: var(--primary-light);
    font-weight: 600;
}

.team-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
}

.highlight-icon {
    font-size: 1.5rem;
}

.team-bio p {
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.team-bio strong {
    color: var(--primary-light);
}

.team-bio ul {
    color: var(--text-muted);
    margin: 1rem 0 1rem 1.5rem;
    line-height: 1.8;
}

.team-bio ul li {
    margin-bottom: 0.75rem;
}

.team-bio ul li:last-child {
    margin-bottom: 0;
}

/* ===================================
   Expertise Section
   =================================== */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.expertise-card {
    background: var(--light-surface);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.expertise-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.expertise-card.highlight {
    background: var(--gradient-space);
    color: var(--text-light);
}

.expertise-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.expertise-card.highlight .expertise-icon {
    color: var(--accent-color);
}

.expertise-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.expertise-card.highlight h3 {
    color: var(--text-light);
}

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

.expertise-card.highlight p {
    color: var(--text-muted);
}

.tech-list {
    list-style: none;
    padding-left: 0;
}

.tech-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.tech-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.heritage-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent-color);
    color: var(--dark-bg);
    border-radius: var(--radius-md);
    font-weight: 700;
    margin-bottom: 1rem;
}

.technical-means {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
    padding: 3rem;
    border-radius: var(--radius-2xl);
    margin-top: 3rem;
}

.technical-means h3 {
    text-align: center;
    margin-bottom: 2rem;
}

.means-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.means-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.means-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

/* ===================================
   Missions Section
   =================================== */
.missions-timeline {
    position: relative;
    padding: 2rem 0;
}

.mission-card {
    background: var(--dark-surface);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-base);
    border-left: 4px solid var(--primary-color);
}

.mission-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-2xl);
}

.mission-card.featured {
    border-left-color: var(--accent-color);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
}

.mission-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary-light);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.mission-card.featured .mission-badge {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-color);
}

.mission-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.mission-header h3 {
    font-size: 1.75rem;
    color: var(--text-light);
}

.mission-years {
    color: var(--text-muted);
    font-weight: 600;
}

.mission-phases {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.phase {
    padding: 0.375rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.phase.active {
    background: rgba(6, 182, 212, 0.2);
    color: var(--secondary-color);
}

.phase.completed {
    background: rgba(34, 197, 94, 0.2);
    color: #22C55E;
}

.mission-description p {
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.mission-description strong {
    color: var(--primary-light);
}

.mission-features h4 {
    color: var(--text-light);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.mission-features ul {
    color: var(--text-muted);
    padding-left: 1.5rem;
}

.mission-features li {
    margin-bottom: 0.5rem;
}

.mission-tech {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.tech-tag {
    padding: 0.5rem 1rem;
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary-light);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
}

/* ===================================
   Technology Portfolio Section
   =================================== */
.tech-intro {
    max-width: 900px;
    margin: 0 auto 3rem;
    text-align: center;
}

.technology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.tech-card {
    background: var(--light-surface);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.tech-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.tech-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-header h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.tech-badge {
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.tech-badge.flight-heritage {
    background: rgba(34, 197, 94, 0.2);
    color: #22C55E;
}

.tech-badge.world-first {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-color);
}

.tech-badge.best-performance {
    background: rgba(236, 72, 153, 0.2);
    color: var(--accent-pink);
}

.tech-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.tech-card > p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    padding-left: 0;
    margin: 1rem 0;
}

.feature-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22C55E;
    font-weight: 700;
}

.tech-performance {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

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

.perf-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.perf-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ===================================
   Research Projects Section
   =================================== */
.research-timeline {
    position: relative;
    padding-left: 2rem;
}

.research-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-hero);
}

.research-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

.research-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--dark-bg);
}

.research-item.featured::before {
    background: var(--accent-color);
    width: 16px;
    height: 16px;
    left: calc(-2rem - 2px);
    top: 0.25rem;
}

.research-year {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary-light);
    border-radius: var(--radius-md);
    font-weight: 700;
    margin-bottom: 1rem;
}

.research-content h3 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.research-code {
    color: var(--text-muted);
    font-family: monospace;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.research-title {
    font-size: 1.125rem;
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 1rem;
}

.research-achievement {
    padding: 1rem;
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid var(--accent-color);
    border-radius: var(--radius-md);
    margin: 1rem 0;
    color: var(--accent-color);
}

.research-funding {
    color: #22C55E;
    font-weight: 600;
}

.research-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 1rem;
}

/* ===================================
   Collaborations Section
   =================================== */
.collaborations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.collab-card {
    background: var(--light-surface);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border-top: 4px solid var(--primary-color);
}

.collab-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.collab-logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.collab-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.collab-card p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.collab-project {
    font-weight: 600;
    color: var(--primary-color);
}

.collab-award {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: 1rem;
}

/* ===================================
   Contact Section
   =================================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.contact-feature-box {
    text-align: center;
    padding: 2rem;
    background: var(--dark-surface);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
}

.contact-feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.contact-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary-light);
    border-radius: 50%;
    color: var(--primary-light);
    transition: var(--transition-base);
}

.contact-feature-box:hover .contact-icon {
    background: var(--primary-light);
    color: var(--dark-bg);
    transform: rotate(5deg) scale(1.1);
}

.contact-icon svg {
    width: 40px;
    height: 40px;
}

.contact-feature-box h3 {
    color: var(--text-light);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.contact-details {
    color: var(--text-muted);
    line-height: 1.8;
}

.contact-details p {
    margin-bottom: 0.5rem;
}

.contact-details strong {
    color: var(--primary-light);
}

.contact-details a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition-base);
}

.contact-details a:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

.vision-final {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    padding: 3rem;
    border-radius: var(--radius-2xl);
    margin-top: 3rem;
}

.vision-final h3 {
    color: var(--text-light);
    text-align: center;
    margin-bottom: 2rem;
}

.vision-final blockquote {
    font-size: 1.5rem;
    font-style: italic;
    text-align: center;
    padding: 2rem;
    border-left: 4px solid var(--accent-color);
    margin: 2rem 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    color: var(--text-light);
}

.vision-final p {
    color: var(--text-muted);
    text-align: center;
    line-height: 1.8;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--dark-bg);
    padding: 3rem 2rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-section a:hover {
    color: var(--primary-light);
}

.designed-badge {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary-light);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .team-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateX(100%);
        transition: var(--transition-base);
    }

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

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-cta {
        flex-direction: column;
    }

    .expertise-grid,
    .technology-grid,
    .collaborations-grid {
        grid-template-columns: 1fr;
    }

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

    .section {
        padding: 3rem 1rem;
    }

    .research-timeline {
        padding-left: 1rem;
    }

    .research-item {
        padding-left: 1.5rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    .btn {
        width: 100%;
    }

    .mission-header {
        flex-direction: column;
    }

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

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

/* ===================================
   Animations & Effects
   =================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Intersection Observer animations */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease-out forwards;
}

.slide-in-left {
    opacity: 0;
    animation: slideInLeft 1s ease-out forwards;
}

.slide-in-right {
    opacity: 0;
    animation: slideInRight 1s ease-out forwards;
}

/* ===================================
   Utility Classes
   =================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }