:root {
    --bg-color: #080808;
    --text-main: #f0f0f0;
    --text-muted: #888888;
    --gold: #c9a84c;
    --gold-hover: #e8c97a;
    --card-bg: #121212;
    --border-color: #222222;
    
    --font-ui: 'Inter', sans-serif;
    --font-brand: 'Playfair Display', serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-ui);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-brand);
    font-size: 1.8rem;
    font-style: italic;
    letter-spacing: 4px;
    color: var(--gold);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

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

.outline-link {
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
}
.outline-link:hover {
    border-color: var(--gold);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80vh;
    padding: 0 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    font-weight: 300;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--gold);
    color: #000;
    box-shadow: 0 4px 15px rgba(201, 168, 76, 0.2);
}

.btn-primary:hover {
    background-color: var(--gold-hover);
    box-shadow: 0 6px 20px rgba(201, 168, 76, 0.4);
    transform: translateY(-2px);
}

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

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

.hero-visual {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

#clock-container {
    width: 500px;
    height: 500px;
    filter: drop-shadow(0 0 40px rgba(201, 168, 76, 0.1));
}

.live-label {
    margin-top: 2rem;
    font-family: monospace;
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: var(--gold);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

/* Concept Section */
.concept-section {
    padding: 6rem 5%;
    max-width: 1400px;
    margin: 0 auto;
    border-top: 1px solid var(--border-color);
}

.concept-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.concept-card {
    background-color: var(--card-bg);
    padding: 3rem 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.concept-card:hover {
    transform: translateY(-5px);
    border-color: var(--gold);
}

.concept-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--gold);
    font-family: var(--font-brand);
    font-style: italic;
    letter-spacing: 1px;
}

.concept-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 4rem 5%;
    border-top: 1px solid var(--border-color);
}

.footer-logo {
    font-family: var(--font-brand);
    font-size: 1.5rem;
    font-style: italic;
    letter-spacing: 4px;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

footer p {
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 1px;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 4rem;
    }
    .hero-content {
        margin-bottom: 4rem;
    }
    .hero-title {
        font-size: 3.5rem;
    }
    .hero-buttons {
        justify-content: center;
    }
    #clock-container {
        width: 350px;
        height: 350px;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .nav-links {
        display: none; /* simple mobile nav */
    }
    #clock-container {
        width: 280px;
        height: 280px;
    }
}