:root {
    --primary: #0F172A;
    --accent: #38BDF8;
    --text-main: #E2E8F0;
    --text-muted: #94A3B8;
    --bg-light: #1E293B;
    --border: #334155;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--primary);
    color: var(--text-main);
    line-height: 1.6;
}

header {
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

nav {
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover, nav a.active {
    color: var(--accent);
}

.btn-verify {
    background-color: var(--accent);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 600;
    text-decoration: none;
    font-size: 0.875rem;
    transition: opacity 0.2s;
}

.btn-verify:hover {
    opacity: 0.9;
}

main {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 2rem;
}

.hero {
    margin-bottom: 4rem;
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #FFFFFF;
}

h2 {
    font-size: 1.75rem;
    margin: 2rem 0 1rem;
    color: var(--accent);
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.card h3 {
    color: #FFFFFF;
    margin-bottom: 1rem;
}

.registry-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
}

.registry-table th, .registry-table td {
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.registry-table th {
    color: var(--accent);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

footer {
    border-top: 1px solid var(--border);
    padding: 4rem 2rem;
    margin-top: 4rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.placeholder-img {
    background: linear-gradient(45deg, #1E293B, #334155);
    width: 100%;
    height: 200px;
    border-radius: 4px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-family: monospace;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }
    nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}