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

:root {
    --bg-dark: #0a0a0a;
    --bg-secondary: #121212;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #ffffff;
    --accent-dim: #404040;
    --border: #1a1a1a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Grain Overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 9999;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text-primary);
    transition: width 0.3s ease;
}

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

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

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

.hero-content {
    max-width: 1200px;
    text-align: center;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.title-line:nth-child(2) {
    animation-delay: 0.4s;
    color: var(--text-secondary);
}

.title-line:nth-child(3) {
    animation-delay: 0.6s;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.4rem);
    color: var(--text-secondary);
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1s forwards;
}

.btn {
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1rem;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--accent-dim);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1.2s forwards;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--text-secondary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

/* Section Styles */
.section {
    padding: 8rem 2rem;
    position: relative;
}

.section-content {
    max-width: 1200px;
    margin: 0 auto;
}

.section-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease 0.1s;
}

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

/* About Section */
.about {
    background: var(--bg-secondary);
}

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

.about-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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

.about-item:nth-child(2) {
    transition-delay: 0.1s;
}

.about-item:nth-child(3) {
    transition-delay: 0.2s;
}

.about-number {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.about-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.about-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Work Section */
.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.work-item {
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.work-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.work-item:nth-child(2) {
    transition-delay: 0.1s;
}

.work-item:nth-child(3) {
    transition-delay: 0.2s;
}

.work-image {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--bg-secondary);
    border-radius: 1rem;
    overflow: hidden;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.work-item:hover .work-image {
    transform: translateY(-5px);
}

.work-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    border: 1px solid var(--border);
}

.work-info h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.work-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Contact Section */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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

.contact-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-email {
    display: inline-block;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: 3rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

.contact-email:hover {
    opacity: 0.7;
}

.contact-social {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.social-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

/* Footer */
.footer {
    padding: 3rem 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollLine {
    0%, 100% {
        transform: scaleY(1);
        opacity: 1;
    }
    50% {
        transform: scaleY(0.5);
        opacity: 0.5;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-content {
        padding: 1.5rem 1.5rem;
    }
    
    .nav-links {
        gap: 1.5rem;
    }
    
    .section {
        padding: 5rem 1.5rem;
    }
    
    .hero {
        padding: 6rem 1.5rem 4rem;
    }
    
    .about-grid,
    .work-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}