body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111;
    color: white;
}

.navbar {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
    padding: 14px 16px;
    background: rgba(17, 17, 17, 0.95);
    border-bottom: 1px solid #333;
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    font-weight: bold;
    text-decoration: none;
    color: white;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
}

.nav-link {
    text-decoration: none;
    color: white;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: transparent;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.30);
}

.muted {
    opacity: 0.75;
}

h1 {
    text-align: center;
    padding: 20px;
}

.page {
    max-width: 1100px;
    margin: 0 auto;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    padding: 18px;
}

.card {
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 14px;
    padding: 18px;
    text-decoration: none;
    color: white;
}

.card:hover {
    background: rgba(255, 255, 255, 0.08);
}