/* ═══════════════════════════════════════════════════════════════
   PREMIUM DESIGN SYSTEM - Lucas Kemper Portfolio
   Global Styles for Secondary Pages
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Premium Color Palette */
    --primary: #10b981;
    --primary-light: #34d399;
    --primary-glow: rgba(16, 185, 129, 0.4);
    --accent: #8b5cf6;
    --accent-light: #a78bfa;
    --accent-glow: rgba(139, 92, 246, 0.4);

    /* Backgrounds */
    --bg-deep: #030712;
    --bg-surface: #0f172a;
    --bg-elevated: #1e293b;

    /* Text */
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;

    /* Glass Effects */
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(255, 255, 255, 0.2);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-text: linear-gradient(135deg, #34d399 0%, #10b981 25%, #8b5cf6 75%, #a78bfa 100%);

    /* Layout */
    --max-width: 1200px;
    --header-height: 4.5rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    letter-spacing: -0.01em;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
    opacity: 0.04;
    z-index: 9999;
    pointer-events: none;
    mix-blend-mode: overlay;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    letter-spacing: -0.02em;
    font-weight: 700;
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    z-index: 1000;
    /* border-bottom removed */
}

.nav-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: -0.02em;
    transition: var(--transition-base);
}

.logo:hover {
    filter: brightness(1.2);
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-base);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
    border-radius: 2px;
}

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

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

.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a.active::after {
    width: 100%;
    background: var(--gradient-primary);
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: var(--transition-base);
}

.mobile-menu-btn:hover {
    background: var(--glass-bg);
    border-color: var(--glass-border-hover);
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */

.hero {
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: calc(var(--header-height) + 4rem) 2rem 3rem;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    z-index: 1;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary-light);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.6s ease forwards;
}

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

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

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: fadeInUp 0.6s 0.1s ease forwards, shimmer 3s linear infinite;
    opacity: 0;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s 0.2s ease forwards;
    opacity: 0;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    max-width: 600px;
    animation: fadeInUp 0.6s 0.3s ease forwards;
    opacity: 0;
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════ */

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s 0.4s ease forwards;
    opacity: 0;
}

.button {
    position: relative;
    padding: 0.9rem 1.75rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    min-width: 160px;
}

.button-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow:
        0 4px 15px var(--primary-glow),
        0 0 0 1px rgba(16, 185, 129, 0.2);
}

.button-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow:
        0 8px 25px var(--primary-glow),
        0 0 0 1px rgba(16, 185, 129, 0.3),
        0 0 40px var(--primary-glow);
}

.button-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.button-secondary:hover {
    transform: translateY(-3px);
    background: rgba(30, 41, 59, 0.8);
    border-color: var(--primary);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* ═══════════════════════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════════════════════ */

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: var(--transition-base);
}

.card:hover {
    transform: translateY(-5px);
    background: rgba(15, 23, 42, 0.8);
    border-color: var(--primary-light);
    box-shadow:
        0 20px 40px -10px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(16, 185, 129, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.project-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 30px var(--primary-glow);
}

.project-tag {
    display: inline-block;
    background: rgba(16, 185, 129, 0.15);
    color: var(--primary-light);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Spotlight Effect Base */
.card,
.project-card,
.book-card,
.paper-card,
.contact-card,
.timeline-item {
    position: relative;
    background: rgba(15, 23, 42, 0.6);
    /* Slightly more transparent for effect */
    overflow: hidden;
}

.card::before,
.project-card::before,
.book-card::before,
.paper-card::before,
.contact-card::before,
.timeline-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    background: radial-gradient(600px circle at var(--mouse-x, 0) var(--mouse-y, 0),
            rgba(255, 255, 255, 0.06),
            transparent 40%);
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

.card:hover::before,
.project-card:hover::before,
.book-card:hover::before,
.paper-card:hover::before,
.contact-card:hover::before,
.timeline-item:hover::before {
    opacity: 1;
}

/* Ensure content is above spotlight */
.card>*,
.project-card>*,
.book-card>*,
.paper-card>*,
.contact-card>* {
    position: relative;
    z-index: 3;
}

.project-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
}

.project-link:hover {
    color: var(--primary);
    gap: 0.75rem;
}

/* ═══════════════════════════════════════════════════════════════
   TIMELINE
   ═══════════════════════════════════════════════════════════════ */

.timeline {
    border-left: 2px solid transparent;
    border-image: var(--gradient-primary) 1;
    padding-left: 2rem;
    margin-top: 2rem;
    position: relative;
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateX(-20px);
    animation: slideIn 0.5s ease forwards;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.55rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--primary-glow);
    transition: var(--transition-base);
}

.timeline-item:hover::before {
    transform: scale(1.5);
    box-shadow: 0 0 25px var(--primary-glow);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.timeline-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.timeline-content {
    color: var(--text-muted);
    line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════
   FILTER BUTTONS
   ═══════════════════════════════════════════════════════════════ */

.filter-buttons {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.6rem 1.25rem;
    border-radius: 100px;
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 0.875rem;
    font-weight: 500;
    background: var(--glass-bg);
    color: var(--text-muted);
}

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

.filter-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px var(--primary-glow);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */

footer {
    padding: 6rem 2rem 4rem;
    background: transparent;
    /* border-top removed */
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.social-icon,
.social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 1.25rem;
    text-decoration: none;
    transition: var(--transition-base);
}

.social-icon:hover,
.social-link:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 10px 30px var(--primary-glow);
}

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

/* ═══════════════════════════════════════════════════════════════
   COOKIE BANNER
   ═══════════════════════════════════════════════════════════════ */

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(3, 7, 18, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 2rem;
    border-top: 1px solid var(--glass-border);
    z-index: 9999;
    animation: slideUp 0.5s ease-out;
}

.cookie-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.cookie-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.cookie-banner button {
    padding: 0.6rem 1.25rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-base);
}

.accept-button {
    background: var(--gradient-primary);
    color: white;
}

.accept-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.decline-button {
    background: transparent;
    border: 1px solid var(--glass-border) !important;
    color: var(--text-primary);
}

.decline-button:hover {
    border-color: var(--primary) !important;
}

/* ═══════════════════════════════════════════════════════════════
   SKIP LINK
   ═══════════════════════════════════════════════════════════════ */

.skip-link {
    position: absolute;
    left: -9999px;
    z-index: 9999;
    padding: 1em;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--primary);
    border-radius: 8px;
}

.skip-link:focus {
    left: 50%;
    transform: translateX(-50%);
    top: 1rem;
}

/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */

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

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

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

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

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

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: shimmer 3s linear infinite;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-20px);
    }

    60% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ═══════════════════════════════════════════════════════════════
   SECTIONS
   ═══════════════════════════════════════════════════════════════ */

.about-section,
.projects-section,
.contact-section {
    padding: calc(var(--header-height) + 3rem) 2rem 4rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* ═══════════════════════════════════════════════════════════════
   LOADING ANIMATION
   ═══════════════════════════════════════════════════════════════ */

.loading-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-deep);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    transition: opacity 0.5s ease;
}

.loading-logo {
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse 1.5s infinite;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(3, 7, 18, 0.98);
        backdrop-filter: blur(20px);
        padding: 2rem;
        flex-direction: column;
        gap: 1.5rem;
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.15rem;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .button {
        width: 100%;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .cookie-content {
        text-align: center;
        justify-content: center;
    }

    .cookie-buttons {
        width: 100%;
        justify-content: center;
    }

    .social-links {
        gap: 1rem;
    }

    .social-icon,
    .social-link {
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .nav-content {
        padding: 0 1rem;
    }

    .about-section,
    .projects-section,
    .contact-section {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   PAGE: LIBRARY / RESOURCES
   ═══════════════════════════════════════════════════════════════ */

.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    max-width: var(--max-width);
    margin: 4rem auto;
    padding: 0 1.5rem;
}

.book-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    height: 100%;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.book-type {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary-light);
    margin-bottom: -0.5rem;
}

.book-title {
    font-size: 1.5rem !important;
    margin-bottom: 0.25rem !important;
}

.book-author {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 500;
}

.book-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.book-tags {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: auto;
    padding-top: 1.5rem;
}

.book-tag {
    font-size: 0.75rem;
    padding: 0.4rem 0.9rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    color: var(--text-muted);
    transition: var(--transition-base);
}

.card:hover .book-tag {
    border-color: var(--primary-light);
    color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════
   PAGE: PAPERS / RESEARCH
   ═══════════════════════════════════════════════════════════════ */

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: var(--max-width);
    margin: 4rem auto;
    padding: 0 1.5rem;
}

.paper-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.paper-date {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: -1rem;
}

.paper-title {
    font-size: 1.6rem !important;
    line-height: 1.3;
}

.paper-abstract {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.paper-actions {
    margin-top: auto;
    display: flex;
    gap: 1.5rem;
    padding-top: 1.5rem;
}

.paper-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-base);
}

.paper-link:hover {
    color: var(--primary-light);
    transform: translateX(5px);
}

/* ═══════════════════════════════════════════════════════════════
   PAGE: CONTACT
   ═══════════════════════════════════════════════════════════════ */

.contact-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
    text-align: center;
}

.contact-methods {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 3rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    text-align: left;
    padding: 1.5rem 2rem;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
    text-decoration: none;
    color: inherit;
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--primary-glow);
    border-radius: 12px;
    color: var(--primary-light);
    font-size: 1.25rem;
    transition: var(--transition-base);
}

.contact-card:hover .contact-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1);
}

.contact-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.contact-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════
   research DEEP DIVE
   ═══════════════════════════════════════════════════════════════ */

.research-focus {
    max-width: var(--max-width);
    margin: 6rem auto;
    padding: 0 2rem;
}

.focus-header {
    margin-bottom: 4rem;
    max-width: 800px;
}

.focus-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.focus-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.focus-lead {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin: 4rem 0;
}

.stat-card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0.5;
}

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0 0.5rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Thesis Section */
.thesis-section {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    margin-top: 6rem;
    position: relative;
    overflow: hidden;
}

.thesis-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.thesis-column h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--primary-light);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.method-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.method-icon {
    width: 32px;
    height: 32px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    flex-shrink: 0;
    font-size: 0.9rem;
}

.method-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.method-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .thesis-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .thesis-section {
        padding: 2rem;
    }

    .focus-title {
        font-size: 2rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   HOME FEATURED SECTION
   ═══════════════════════════════════════════════════════════════ */

.home-featured {
    padding: 4rem 2rem;
    position: relative;
    max-width: var(--max-width);
    margin: -4rem auto 4rem;
    /* Negative margin to pull it up slightly or overlap if desired, adjusted for flow */
    z-index: 10;
}

.featured-card {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.7) 100%);
    border: 1px solid var(--primary-glow);
    border-radius: 24px;
    padding: 3rem;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    align-items: center;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s 0.6s ease forwards;
    opacity: 0;
}

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

.featured-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.featured-label i {
    font-size: 0.7rem;
    animation: pulse 2s infinite;
}

.featured-heading {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.featured-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.stat-highlight {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--text-primary);
    text-shadow: 0 0 30px var(--primary-glow);
}

.stat-context {
    font-size: 0.9rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .featured-card {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
        text-align: center;
    }

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

    .featured-text {
        order: 2;
    }

    .stat-highlight {
        order: 1;
        margin-bottom: 1rem;
    }

    .home-featured {
        margin-top: 0;
        padding-top: 0;
    }
}

/* ═══════════════════════════════════════════════════════════════
   PROPRIETARY research
   ═══════════════════════════════════════════════════════════════ */

.proprietary-section {
    max-width: var(--max-width);
    margin: 6rem auto;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
}

.prop-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 5rem;
}

.prop-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.prop-lead {
    font-size: 1.2rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Philosophy Grid */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 5rem;
}

.philosophy-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.philosophy-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.4);
}

.philosophy-icon {
    width: 56px;
    height: 56px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.philosophy-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.philosophy-card p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Focus List */
.focus-container {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.6) 0%, rgba(15, 23, 42, 0.9) 100%);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
}

.focus-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    list-style: none;
    margin-top: 2rem;
}

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

.focus-check {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.focus-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .prop-title {
        font-size: 2rem;
    }

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

    .focus-container {
        padding: 2rem;
    }
}
/* ═══════════════════════════════════════════════════════════════
   COMMAND PALETTE HINT
   ═══════════════════════════════════════════════════════════════ */

.cmd-hint {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    z-index: 900;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    pointer-events: none;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.cmd-key {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: inherit;
    font-weight: 600;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .cmd-hint {
        display: none;
    }
}