/* ========================================
   CSS Variables & Design Tokens - LIGHT MODE
======================================== */
:root {
    /* Colors - Light Theme */
    --bg-primary: #f8fbff;
    /* Slightly cooler background */
    --bg-secondary: #ffffff;
    --surface: rgba(255, 255, 255, 0.85);
    --surface-hover: rgba(255, 255, 255, 0.98);
    --glass: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(0, 0, 0, 0.06);

    --text-primary: #0f172a;
    /* Deep Navy */
    --text-secondary: #475569;
    /* Slate Gray */
    --text-tertiary: #94a3b8;
    /* Light Slate */

    /* Semantic Accent Palette */
    --brand-primary: #6366f1;
    /* Indigo - Learning/Professional */
    --brand-secondary: #f97316;
    /* Orange - Digital/Technical */
    --brand-tertiary: #06b6d4;
    /* Cyan - Supplements/Awards */
    --brand-accent: #ec4899;
    /* Pink - Personal/Featured */

    --accent-indigo: #6366f1;
    --accent-violet: #8b5cf6;
    --accent-purple: #a855f7;
    --accent-pink: #ec4899;
    --accent-orange: #f97316;
    --accent-cyan: #06b6d4;

    --gradient-primary: linear-gradient(135deg, var(--brand-primary), #8b5cf6);
    --gradient-warm: linear-gradient(135deg, #f43f5e, var(--brand-secondary));
    --gradient-cool: linear-gradient(135deg, var(--brand-tertiary), var(--brand-primary));
    --gradient-header: linear-gradient(135deg, #0f172a 0%, #334155 100%);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.25rem;
    --space-2xl: 3.5rem;
    --space-3xl: 4.5rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-2xl: 36px;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

    /* Shadows - Light Mode */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.1);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 450ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ========================================
   Animated Background - Light Mode
======================================== */
.background-container {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f9fc 0%, #eef2ff 50%, #fdf4ff 100%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, transparent 70%);
    top: -200px;
    left: -150px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.25) 0%, transparent 70%);
    top: 50%;
    right: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.2) 0%, transparent 70%);
    bottom: -100px;
    left: 30%;
    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, -20px) scale(1.02);
    }
}

.noise-overlay {
    display: none;
}

/* ========================================
   Container & Layout
======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl);
}

/* ========================================
   Bento Grid System
======================================== */
.bento-grid {
    display: grid;
    gap: var(--space-lg);
}

.hero-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, auto);
    margin-bottom: var(--space-2xl);
}

.content-grid {
    grid-template-columns: repeat(3, 1fr);
    margin-bottom: var(--space-2xl);
}

.courses-grid {
    grid-template-columns: repeat(4, 1fr);
    margin-bottom: var(--space-2xl);
}

.publications-grid {
    grid-template-columns: repeat(3, 1fr);
    margin-bottom: var(--space-2xl);
}

/* ========================================
   Personal Collage
======================================== */
.collage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.collage-card {
    aspect-ratio: 1;
    position: relative;
    cursor: default;
    overflow: hidden;
    padding: var(--space-lg);
    /* Consistent 24px padding for the "frame" look */
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    /* Solid white background for the "Polaroid" feel */
}

.collage-card:nth-child(odd) {
    transform: rotate(-1.5deg);
}

.collage-card:nth-child(even) {
    transform: rotate(1.5deg);
}

.collage-card:hover {
    transform: rotate(0deg) scale(1.02) !important;
    z-index: 10;
}

.collage-card.video-card {
    padding: var(--space-lg);
    /* Explicitly override general video-card padding */
}

.video-card {
    grid-column: span 1;
}

.collage-media {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    /* Sharper corner for more "photo" feel */
    border: 1px solid rgba(0, 0, 0, 0.1);
    transition: transform 0.5s ease;
}

.collage-card:hover .collage-media {
    transform: scale(1.1);
}

.media-overlay {
    position: absolute;
    bottom: var(--space-lg);
    left: var(--space-lg);
    right: var(--space-lg);
    padding: var(--space-sm);
    background: transparent;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    pointer-events: none;
}

.collage-card:hover .media-overlay {
    opacity: 1;
}

.media-label {
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: rgba(255, 255, 255, 0.8);
    /* Solid enough to read on any image */
    backdrop-filter: blur(8px);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.collage-card::after {
    content: '';
    position: absolute;
    top: 12px;
    /* Positioned to overlap the top of the media within the frame */
    left: 50%;
    transform: translateX(-50%) rotate(-5deg);
    width: 60px;
    height: 25px;
    background: rgba(255, 252, 225, 0.4);
    backdrop-filter: blur(2px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 5;
    pointer-events: none;
    border-radius: 2px;
}

.collage-card:nth-child(even)::after {
    transform: translateX(-50%) rotate(5deg);
}

/* Tape is now shown on video cards as well for consistency */

@media (max-width: 1024px) {
    .collage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .collage-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Section Headers (Redesigned)
======================================== */
.section-header {
    margin-bottom: var(--space-lg);
    padding: var(--space-lg) 0;
    text-align: left;
    position: relative;
    border-left: none;
    padding-left: 0;
    display: block;
}

/* Subtle background glow */
.section-header::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 100px;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--brand-primary) 0%, transparent 70%);
    opacity: 0.08;
    z-index: -1;
    filter: blur(60px);
    pointer-events: none;
}

.section-header h2 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    color: var(--text-primary);

    /* Text Gradient */
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    position: relative;
}

/* Decorative Underline */
.section-header h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 6px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-tertiary));
    margin: 1.5rem 0 0;
    border-radius: 10px;
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.25rem;
    line-height: 1.6;
    font-weight: 400;
    max-width: none;
    margin: 0;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .section-header h2 {
        font-size: 2.5rem;
    }

    .section-description {
        font-size: 1.1rem;
        padding: 0 var(--space-md);
    }
}

/* ========================================
   Glass Card Base - Light Mode
======================================== */
.card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    transition: transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base),
        background var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.5) 0%,
            transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

a.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.08), var(--shadow-glow);
    border-color: rgba(99, 102, 241, 0.4);
    background: var(--surface-hover);
}

a.card:hover::before {
    opacity: 1;
}

/* ========================================
   Profile Card
======================================== */
.profile-card {
    grid-column: span 2;
    grid-row: span 2;
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.profile-image-container {
    position: relative;
}

.profile-image-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
    box-shadow: var(--shadow-md), 0 0 30px rgba(99, 102, 241, 0.3);
}

.profile-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid white;
    box-shadow: var(--shadow-md), 0 0 30px rgba(99, 102, 241, 0.3);
}


@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.profile-info h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.tagline {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

.bio {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.skill-icon {
    color: var(--accent-5);
    font-size: 0.75rem;
}

/* Profile Links */
.profile-links {
    display: flex;
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.profile-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--accent-1);
    font-weight: 500;
    font-size: 0.9rem;
    padding: var(--space-sm) var(--space-md);
    background: rgba(99, 102, 241, 0.08);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.profile-link:hover {
    background: rgba(99, 102, 241, 0.15);
    transform: translateY(-2px);
}

.profile-link i {
    font-size: 0.9rem;
}

/* ========================================
   Location Card
======================================== */
.location-card {
    grid-column: span 1;
    grid-row: span 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.map-container {
    position: relative;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.map-container i {
    font-size: 2rem;
    color: var(--brand-tertiary);
    z-index: 1;
}

.map-pin-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(6, 182, 212, 0.15);
    animation: ping 1.5s ease-out infinite;
}

@keyframes ping {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }

    100% {
        transform: scale(2);
        opacity: 0;
    }
}

.location-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.location-info p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* ========================================
   Social Cards
======================================== */
.social-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    position: relative;
}

.social-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.social-card:hover .social-icon-wrapper {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.github .social-icon-wrapper {
    background: linear-gradient(135deg, #333, #1a1a1a);
    color: white;
}

.linkedin .social-icon-wrapper {
    background: linear-gradient(135deg, #0077b5, #005582);
    color: white;
}

.social-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.hover-arrow {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    opacity: 0;
    transform: translateX(-8px);
    transition: all var(--transition-base);
    color: var(--text-tertiary);
}

.social-card:hover .hover-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   Link Cards (Portfolio & Resume)
======================================== */
.link-card {
    grid-column: span 2;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.resume-link {
    grid-column: span 2;
}

.link-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--gradient-cool);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.resume-icon {
    background: var(--gradient-warm);
}

.link-content {
    flex: 1;
}

.link-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.link-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.link-arrow {
    color: var(--text-tertiary);
    opacity: 0.5;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.link-card:hover .link-arrow {
    opacity: 1;
    transform: translateX(4px);
    color: var(--accent-1);
}

/* ========================================
   Project Cards
======================================== */
.project-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.project-card.featured {
    grid-column: span 2;
}

.project-image {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.portfolio-site-bg {
    background: linear-gradient(135deg, var(--brand-primary) 0%, #4f46e5 100%);
    position: relative;
}

.portfolio-site-bg::after {
    content: 'PORTFOLIO';
    position: absolute;
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* ID Myths Background */
.id-myths-bg {
    background: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%);
    position: relative;
    overflow: hidden;
}

.id-myths-bg .project-icon-watermark {
    color: #475569;
}

/* Article Background */
.article-bg {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.article-bg .project-icon-watermark {
    color: #64748b;
}

/* AWS Project Background */
.aws-project-bg {
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    position: relative;
    overflow: hidden;
}

.aws-project-bg .project-icon-watermark {
    color: #ea580c;
}

/* YouTube Specialized Card Styles */
.youtube-card {
    transition: all var(--transition-slow);
}

.youtube-card:hover {
    border-color: rgba(255, 8, 0, 0.3);
    box-shadow: 0 15px 35px rgba(255, 0, 0, 0.1);
}

/* Redesign Video Background */
.video-bg {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    position: relative;
    overflow: hidden;
}

.video-bg .project-icon-watermark {
    color: #ef4444;
}

/* Style for Video Cards in the Publications Grid */
.pub-icon.video {
    background: linear-gradient(135deg, #ff0000, #dd0000);
    position: relative;
    overflow: hidden;
}

.pub-icon.video::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.2), transparent);
}

.youtube-card.publication-card:hover .pub-icon.video {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.3);
}

/* Twitch Background */
.twitch-bg {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    position: relative;
    overflow: hidden;
}

.twitch-bg .project-icon-watermark {
    color: #9146ff;
}

/* Wiki/Workflow Learning Background */
.wiki-bg {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    position: relative;
    overflow: hidden;
}

.wiki-bg .project-icon-watermark {
    color: #10b981;
}

/* AT&T Background */
.att-bg {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.att-bg .project-icon-watermark {
    color: #00a8e0;
}

/* Certification Program Background */
.cert-bg {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
    overflow: hidden;
}

.cert-bg .project-icon-watermark {
    color: #374151;
}

/* Common Watermark Icon Style */
.project-icon-watermark {
    position: absolute;
    font-size: 8rem;
    bottom: -20px;
    right: -20px;
    opacity: 0.15;
    transform: rotate(-15deg);
    transition: all 0.5s ease;
    pointer-events: none;
}

/* Hover Effect for Icons */
.project-card:hover .project-icon-watermark {
    transform: rotate(0deg) scale(1.1);
    opacity: 0.25;
}

/* Workshop Background */
.workshop-bg {
    background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 100%);
    position: relative;
    overflow: hidden;
}

.workshop-bg .project-icon-watermark {
    color: #db2777;
}

/* Category Filter */
.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    justify-content: center;
    padding: var(--space-md);
    background: var(--surface);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    background: var(--glass);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover {
    background: var(--surface-hover);
    color: var(--brand-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

/* Card Visibility and Animation */
.project-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card.hidden {
    display: none;
}

/* Projects Grid */
.projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.project-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.project-content {
    padding: var(--space-lg);
    flex: 1;
    background: white;
}

.project-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.project-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.project-arrow {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    color: rgba(255, 255, 255, 0.7);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-arrow {
    opacity: 1;
}

/* ========================================
   Video Cards
======================================== */
.video-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.video-thumbnail {
    height: 140px;
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video-thumbnail.intro-video {
    background: linear-gradient(135deg, var(--accent-1) 0%, var(--accent-3) 100%);
}

.video-thumbnail i {
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.3);
}

.play-button {
    position: absolute;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #dc2626;
    font-size: 1rem;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    box-shadow: var(--shadow-md);
}

.intro-video .play-button {
    color: var(--accent-1);
}

.video-card:hover .play-button {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.video-content {
    padding: var(--space-lg);
    background: white;
}

.video-content h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.video-content p {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ========================================
   Award Card
======================================== */
.award-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
}

.award-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--space-md);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.2);
}

.award-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.award-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   Course Cards
======================================== */
.course-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.8) 100%);
}

.course-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent-1);
    margin-bottom: var(--space-sm);
    transition: background var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.course-card:hover .course-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.course-icon.aws {
    color: var(--brand-secondary);
    background: rgba(249, 115, 22, 0.1);
}

.course-icon.twitch {
    color: #9146ff;
    background: rgba(145, 70, 255, 0.1);
}

.course-icon.microsoft {
    color: #0ea5e9;
    background: rgba(14, 165, 233, 0.1);
}

.course-icon.lambda {
    color: var(--brand-secondary);
    background: rgba(249, 115, 22, 0.1);
}

.course-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
}

.course-card p {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ========================================
   Publication Cards
======================================== */
.publication-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.8) 100%);
}

.pub-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.pub-icon.conference {
    background: linear-gradient(135deg, var(--brand-primary), #4f46e5);
    color: white;
}

.pub-icon.document {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: white;
}

.pub-content h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.pub-content p {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ========================================
   Footer
======================================== */
.footer {
    text-align: center;
    padding: var(--space-2xl) 0;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .content-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .courses-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .publications-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .collage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--space-md);
    }

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

    .profile-card {
        grid-column: span 2;
    }

    .link-card {
        grid-column: span 2;
    }

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

    .project-card.featured {
        grid-column: span 1;
    }

    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .profile-card,
    .link-card,
    .resume-link {
        grid-column: span 1;
    }

    .location-card,
    .social-card {
        aspect-ratio: auto;
        min-height: 140px;
    }

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

    .profile-info h1 {
        font-size: 1.75rem;
    }

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

    .collage-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .section-header h2 {
        font-size: 1.25rem;
    }
}

/* ========================================
   Animation Utilities
======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.card {
    animation: fadeIn 0.6s ease-out backwards;
}

.hero-grid .card:nth-child(1) {
    animation-delay: 0.1s;
}

.hero-grid .card:nth-child(2) {
    animation-delay: 0.15s;
}

.hero-grid .card:nth-child(3) {
    animation-delay: 0.2s;
}

.hero-grid .card:nth-child(4) {
    animation-delay: 0.25s;
}

.hero-grid .card:nth-child(5) {
    animation-delay: 0.3s;
}

.hero-grid .card:nth-child(6) {
    animation-delay: 0.35s;
}

/* ========================================
   Project Modals
======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-container {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px) scale(0.95);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    padding: var(--space-xl);
}

.modal-overlay.active .modal-container {
    transform: translateY(0) scale(1);
}

.modal-close-btn {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    z-index: 10;
}

.modal-close-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    transform: rotate(90deg);
}

.modal-project-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-1);
    margin-bottom: var(--space-md);
}

.modal-header h2 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    line-height: 1.2;
}

.modal-image-container {
    margin: var(--space-lg) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-secondary);
    display: flex;
    justify-content: center;
    align-items: center;
    max-height: 400px;
}

#modalImage {
    width: 100%;
    height: auto;
    object-fit: contain;
    max-height: 400px;
    display: block;
}

.modal-body {
    display: grid;
    gap: var(--space-lg);
}

.modal-section-title {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-bottom: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.modal-section-title i {
    color: var(--accent-1);
    font-size: 1rem;
}

.modal-text {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.modal-testimonials {
    background: var(--bg-secondary);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-1);
}

.modal-testimonial-item {
    font-style: italic;
    margin-bottom: var(--space-md);
    position: relative;
    padding-left: var(--space-lg);
}

.modal-testimonial-item::before {
    content: '“';
    position: absolute;
    left: 0;
    top: -5px;
    font-size: 2rem;
    color: var(--accent-1);
    opacity: 0.5;
}

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

.modal-action {
    margin-top: var(--space-lg);
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-xl);
    background: var(--accent-1);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.modal-action:hover {
    background: var(--accent-2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Modal Open State */
body.modal-open {
    overflow: hidden;
}

/* ========================================
   Accessibility
======================================== */
@media (prefers-reduced-motion: reduce) {

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

    .gradient-orb {
        animation: none;
    }
}

/* Focus States */
a.card:focus-visible {
    outline: 2px solid var(--accent-1);
    outline-offset: 2px;
}