:root {
    --obsidian-black: #020406;
    --gaussian-white: #F7F9FB;
    --premium-gold: #E6C275;
    --critical-red: #FF3B30;
    --accent-gray: #2D2D2D;
}

body {
    background-color: var(--obsidian-black);
    color: var(--gaussian-white);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    color: var(--gaussian-white);
    letter-spacing: -0.02em;
}

.text-gold { color: var(--premium-gold); }
.text-red { color: var(--critical-red); }
.bg-obsidian { background-color: var(--obsidian-black); }

.navbar {
    background-color: rgba(2, 4, 6, 0.95);
    border-bottom: 1px solid var(--accent-gray);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 900;
    color: var(--gaussian-white) !important;
    font-size: 1.2rem;
}

.nav-link {
    color: var(--gaussian-white) !important;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 0 10px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.nav-link:hover, .nav-link.active {
    opacity: 1;
    color: var(--premium-gold) !important;
}

/* Hero Section */
.hero-section {
    padding: 160px 0 100px;
    background: radial-gradient(circle at 50% 50%, #0a0e14 0%, var(--obsidian-black) 100%);
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 30px;
}

/* Stats Counter */
.stats-ticker {
    background: var(--accent-gray);
    padding: 15px 0;
    border-top: 1px solid var(--premium-gold);
    border-bottom: 1px solid var(--premium-gold);
}

.ticker-item {
    display: inline-block;
    margin-right: 50px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

/* Cards */
.card-custom {
    background: rgba(45, 45, 45, 0.3);
    border: 1px solid var(--accent-gray);
    border-radius: 0;
    padding: 30px;
    transition: all 0.3s;
}

.card-custom:hover {
    border-color: var(--premium-gold);
    background: rgba(45, 45, 45, 0.5);
}

/* Footer */
footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--accent-gray);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 20px;
}

/* Matrix & Grid */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(var(--accent-gray) 1px, transparent 1px),
                      linear-gradient(90deg, var(--accent-gray) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.1;
    pointer-events: none;
}

/* Math Display */
.math-block {
    font-size: 1.5rem;
    padding: 20px;
    background: #000;
    border-left: 4px solid var(--premium-gold);
    margin: 20px 0;
}