/* Obsidian & Gilt Design System */
:root {
    --background: #131313;
    --surface: #131313;
    --surface-container-lowest: #0e0e0e;
    --surface-container-low: #1c1b1b;
    --surface-container: #201f1f;
    --surface-container-high: #2a2a2a;
    --surface-container-highest: #353534;
    
    --primary: #f2ca50;
    --primary-container: #d4af37;
    --on-primary: #3c2f00;
    
    --on-background: #e5e2e1;
    --on-surface-variant: #d0c5af;
    --outline-variant: rgba(77, 70, 53, 0.15); /* Ghost Border */

    --font-heading: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--background);
    color: var(--on-background);
    font-size: 16px;
}

html.lenis, html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

.lenis.lenis-smooth iframe {
  pointer-events: none;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Texture Overlay */
.grain-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    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)'/%3E%3C/svg%3E");
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.display-title {
    font-size: clamp(4rem, 10vw, 8rem);
    letter-spacing: -0.04em;
    margin-bottom: 0.5rem;
}

.display-subtitle {
    font-size: clamp(2rem, 5vw, 4rem);
    color: var(--on-surface-variant);
    font-weight: 400;
    margin-bottom: 2rem;
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: 4rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--outline-variant);
}

.gold-text {
    color: var(--primary-container);
}

/* Components */
.btn-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    color: var(--on-primary);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 800;
    border-radius: 4px;
    letter-spacing: 0.02em;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px -10px rgba(212, 175, 55, 0.3);
}

.btn-ghost {
    display: inline-block;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 1.5rem;
    position: relative;
    width: max-content;
}

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

.btn-ghost:hover::after {
    width: 100%;
}

/* Navigation */
.top-nav {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    background: rgba(19, 19, 19, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 100;
    border-radius: 100px;
    border: 1px solid var(--outline-variant);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
}

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

.nav-links a {
    color: var(--on-background);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

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

/* Layout Sections */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 8rem;
}

.hero-body {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    max-width: 500px;
    margin-bottom: 3rem;
}

/* Editoral Bento Grid */
.works {
    padding: 8rem 0;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem;
}

.project-card {
    background-color: var(--surface-container-low);
    border-radius: 8px;
    padding: 3rem;
    transition: transform 0.4s ease, background-color 0.4s ease;
    position: relative;
    overflow: hidden;
}

/* Asymmetrical Masonry/Bento styling */
/* Creating large, medium, and small cards to break the grid */
.project-card:nth-child(1) { grid-column: 1 / -1; } /* Full width */
.project-card:nth-child(2) { grid-column: 1 / 8; }
.project-card:nth-child(3) { grid-column: 8 / 13; }
.project-card:nth-child(4) { grid-column: 1 / 6; }
.project-card:nth-child(5) { grid-column: 6 / -1; }
.project-card:nth-child(6) { grid-column: 1 / 7; }
.project-card:nth-child(7) { grid-column: 7 / 13; }
.project-card:nth-child(8) { grid-column: 1 / 9; }
.project-card:nth-child(9) { grid-column: 9 / 13; }

.project-card:hover {
    background-color: var(--surface-container);
    transform: translateY(-8px);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.05), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

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

.card-inner {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    font-family: var(--font-body);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.project-number {
    color: var(--primary-container);
    font-weight: 700;
}

.project-tag {
    color: var(--on-surface-variant);
    border: 1px solid var(--outline-variant);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
}

.project-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

.project-desc {
    color: var(--on-surface-variant);
    margin-bottom: auto; /* pushes button to bottom */
}

/* Footer */
footer {
    background-color: var(--surface-container-lowest);
    padding: 8rem 5% 4rem;
    text-align: center;
}

.footer-title {
    font-size: clamp(3rem, 8vw, 6rem);
    margin-bottom: 4rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.footer-link {
    color: var(--on-surface-variant);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.125rem;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-container);
}

.footer-copy {
    color: var(--outline-variant);
    font-size: 0.875rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .works-grid {
        display: flex;
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 10rem;
    }
    
    .project-card {
        padding: 2rem;
    }
    
    .nav-content {
        padding: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
}