/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
    /* Colors - Vibrant gradient palette */
    --color-bg: #0c0c0f;
    --color-bg-elevated: #111116;
    --color-bg-card: #16161d;
    --color-text: #f8f8fc;
    --color-text-muted: #9898a8;
    --color-text-subtle: #5a5a6e;

    /* Accent gradient colors */
    --color-primary: #7c3aed;
    --color-secondary: #06b6d4;
    --color-accent: #f472b6;
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #06b6d4 50%, #f472b6 100%);
    --gradient-text: linear-gradient(135deg, #a78bfa 0%, #22d3ee 50%, #f9a8d4 100%);
    --gradient-glow: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);

    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-accent: rgba(124, 58, 237, 0.3);

    /* Typography */
    --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Syne', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 7rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

/* ===========================
   Cursor Glow Effect
   =========================== */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: var(--gradient-glow);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 0;
    opacity: 0.6;
    mix-blend-mode: screen;
}

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

/* ===========================
   Navigation
   =========================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    transition: background var(--transition-medium), backdrop-filter var(--transition-medium);
}

.nav.scrolled {
    background: rgba(12, 12, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

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

.nav-links {
    display: flex;
    gap: var(--space-lg);
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-medium);
}

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

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

/* ===========================
   Layout
   =========================== */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ===========================
   Section Headers
   =========================== */
.section-header {
    margin-bottom: var(--space-xl);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.section-header.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-header.centered {
    text-align: center;
}

.section-number {
    display: block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-video-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video-bg iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 177.78vh;
    height: 100vh;
    min-width: 100%;
    min-height: 56.25vw;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(12, 12, 15, 0.7) 0%,
            rgba(12, 12, 15, 0.5) 50%,
            rgba(12, 12, 15, 0.85) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--space-lg);
    overflow: visible;
}

.hero-badge {
    display: inline-block;
    padding: 0.6rem 1.75rem;
    background: rgba(124, 58, 237, 0.25);
    border: 1px solid rgba(124, 58, 237, 0.5);
    border-radius: 100px;
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #a78bfa;
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 10vw, 10rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    padding-bottom: 0.3em;
}

.title-line {
    display: block;
}

.title-line.accent {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {

    0%,
    100% {
        opacity: 1;
        transform: scaleY(1);
    }

    50% {
        opacity: 0.5;
        transform: scaleY(0.6);
    }
}

/* ===========================
   About Section
   =========================== */
.about {
    padding: var(--space-2xl) 0;
    background-color: var(--color-bg);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-accent), transparent);
}

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

@media (min-width: 900px) {
    .about-grid {
        grid-template-columns: 350px 1fr;
        gap: var(--space-2xl);
    }
}

.about-image {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.about-image.visible {
    opacity: 1;
    transform: translateY(0);
}

.image-frame {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.image-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 2px;
    background: var(--gradient-primary);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    z-index: 1;
}

.image-frame img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    transition: box-shadow var(--transition-medium);
}

.image-frame:hover {
    box-shadow: 0 0 40px rgba(124, 58, 237, 0.4), 0 0 80px rgba(6, 182, 212, 0.2);
}

.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.about-content {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    transition-delay: 0.15s;
}

.about-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.about-lead {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.about-content p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    font-size: 1.0625rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.stat {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.stat.visible {
    opacity: 1;
    transform: translateY(0);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===========================
   Work Section
   =========================== */
.work {
    padding: var(--space-2xl) 0;
    background-color: var(--color-bg-elevated);
    position: relative;
}

.work::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-accent), transparent);
}

.work-category {
    margin-bottom: var(--space-2xl);
}

.work-category:last-child {
    margin-bottom: 0;
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.category-icon {
    color: var(--color-primary);
    font-size: 0.75rem;
}

/* Stacked Projects Layout for EdTech */
.projects-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.projects-stack .project-card {
    display: grid;
    grid-template-columns: 1fr;
    background: var(--color-bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
}

@media (min-width: 900px) {
    .projects-stack .project-card {
        grid-template-columns: 1.2fr 1fr;
    }

    .projects-stack .project-card:nth-child(even) {
        grid-template-columns: 1fr 1.2fr;
    }

    .projects-stack .project-card:nth-child(even) .project-video {
        order: 2;
    }
}

.projects-stack .project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(124, 58, 237, 0.1);
    border-color: var(--color-border-accent);
}

.projects-stack .project-info {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Project Grid for Films */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-lg);
}

/* ===========================
   Project Cards
   =========================== */
.project-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card.compact {
    background: var(--color-bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.project-card.compact:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--color-border-accent);
}

.project-video {
    position: relative;
    aspect-ratio: 16/9;
    background-color: var(--color-bg);
    overflow: hidden;
}

.video-wrapper {
    position: absolute;
    inset: 0;
}

.video-wrapper iframe {
    width: 100%;
    height: 100%;
}

.video-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    padding: 0.35rem 0.75rem;
    background: rgba(124, 58, 237, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 100px;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: white;
    z-index: 5;
}

.project-info {
    padding: var(--space-md);
}

.project-meta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.project-category {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
}

.project-tech {
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-secondary);
    padding-left: var(--space-sm);
    border-left: 1px solid var(--color-border);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.project-description {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ===========================
   Contact Section
   =========================== */
.contact {
    padding: var(--space-2xl) 0;
    background-color: var(--color-bg);
    text-align: center;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-accent), transparent);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-text {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    transition: gap var(--transition-medium);
    overflow: visible;
}

.email-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-email:hover {
    gap: var(--space-md);
}

.email-arrow {
    -webkit-text-fill-color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.contact-email:hover .email-arrow {
    transform: translateX(5px);
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.link-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
    transition: transform var(--transition-fast);
}

.social-link:hover {
    color: var(--color-text);
}

.social-link:hover .link-dot {
    transform: scale(1.5);
}

/* ===========================
   Footer
   =========================== */
.footer {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer p {
    font-size: 0.8125rem;
    color: var(--color-text-subtle);
}

.footer-year {
    font-size: 0.8125rem;
    color: var(--color-text-subtle);
}

/* ===========================
   Responsive Adjustments
   =========================== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }

    .nav-links {
        gap: var(--space-md);
    }

    .nav-links a {
        font-size: 0.75rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        text-align: center;
    }

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

    .footer-content {
        flex-direction: column;
        gap: var(--space-sm);
    }
}