/* ==================== index.css ==================== */

:root {
    --primary: #00ff9d;
    --bg: #0a0a0a;
    --card: #1a1a1a;
}

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

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: #eee;
    line-height: 1.6;
}

header {
    background: linear-gradient(135deg, #111, #1a1a1a);
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #333;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary);
}

nav a {
    color: #ddd;
    margin-left: 2rem;
    text-decoration: none;
    transition: color 0.3s;
}

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

.hero {
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.8)), url('https://source.unsplash.com/random/1920x1080/?3d,unity') center/cover no-repeat;
    position: relative;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: white;
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    color: #ccc;
}

.btn {
    display: inline-block;
    background: var(--primary);
    color: #000;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s;
}

.btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 255, 157, 0.3);
}

section {
    padding: 100px 5%;
}

h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary);
}

.assets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.asset-card {
    background: var(--card);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.4s, box-shadow 0.4s;
}

.asset-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 255, 157, 0.15);
}

.asset-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.asset-info {
    padding: 1.5rem;
}

.asset-info h3 {
    margin-bottom: 0.5rem;
    color: white;
}

.price {
    color: var(--primary);
    font-size: 1.3rem;
    font-weight: bold;
}

.tags {
    margin-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background: #333;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

footer {
    background: #111;
    text-align: center;
    padding: 3rem;
    border-top: 1px solid #333;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.8rem; }
    nav a { margin-left: 1rem; font-size: 0.95rem; }
}