@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Noto+Serif:ital,wght@0,400;0,700;1,400&display=swap');

:root {
    /* Color Palette - Aurum Noir */
    --background: #131313;
    --surface: #131313;
    --surface-low: #1c1b1b;
    --surface-lowest: #0e0e0e;
    --surface-high: #2a2a2a;
    --surface-highest: #353534;
    --on-surface: #e5e2e1;
    --on-surface-variant: #cec5ba;
    --primary: #f0e0c8; /* Champagne */
    --on-primary: #382f1e;
    --outline: #979085;
    --outline-variant: rgba(151, 144, 133, 0.15);
    
    /* Typography */
    --font-serif: 'Noto Serif', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
}

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

body {
    background-color: var(--background);
    color: var(--on-surface);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .display-font {
    font-family: var(--font-serif);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* Layout Utilities */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-xl) 0;
}

/* Cinematic Ledger Principles */
.no-line {
    border: none !important;
}

.bg-surface-low { background-color: var(--surface-low); }
.bg-surface-high { background-color: var(--surface-high); }

/* Glassmorphism */
.glass {
    background: rgba(32, 31, 31, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* Typography Scale */
.display-lg { font-size: 5rem; line-height: 1.1; margin-bottom: var(--space-md); }
.headline-lg { font-size: 3.5rem; line-height: 1.2; margin-bottom: var(--space-sm); }
.body-lg { font-size: 1.25rem; font-weight: 300; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(240, 224, 200, 0.3);
    transform: translateY(-2px);
}

.btn-ghost {
    border: 1px solid var(--outline-variant);
    color: var(--on-surface);
}

.btn-ghost:hover {
    background: var(--outline-variant);
    border-color: var(--outline);
}

/* Nav Bar */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: all 0.3s ease;
}

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

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 0.1em;
}

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

.nav-links a {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 500;
    opacity: 0.7;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--primary);
}

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

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .display-lg { font-size: 3.5rem; }
    .headline-lg { font-size: 2.5rem; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .display-lg { font-size: 2.5rem; }
    .section { padding: var(--space-lg) 0; }
}