* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
    background: #0a0a0a;
    color: #e0e0e0;
    min-height: 100vh;
}
.landing-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 3rem;
    border-bottom: 1px solid #1a1a1a;
}
.landing-brand {
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    color: #808080;
    text-decoration: none;
}
.landing-user { font-size: 0.8rem; color: #555; }
.landing-hero { padding: 5rem 3rem 3rem; max-width: 720px; }
.landing-hero h1 { font-size: 2rem; font-weight: 700; color: #fff; line-height: 1.25; margin-bottom: 0.75rem; }
.landing-hero p { font-size: 0.95rem; color: #666; line-height: 1.6; max-width: 480px; }
.landing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1px;
    background: #1a1a1a;
    margin: 2rem 3rem;
    border: 1px solid #1a1a1a;
    border-radius: 8px;
    overflow: hidden;
}
.landing-card {
    background: #0f0f0f;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: background 0.15s;
    text-decoration: none;
    color: inherit;
}
.landing-card:hover { background: #141414; }
.landing-card-icon { font-size: 1.25rem; margin-bottom: 0.25rem; }
.landing-card h3 { font-size: 0.9rem; font-weight: 600; color: #fff; }
.landing-card p { font-size: 0.8rem; color: #555; line-height: 1.5; }
.landing-card-arrow { margin-top: auto; padding-top: 0.75rem; font-size: 0.75rem; color: #444; transition: color 0.15s; }
.landing-card:hover .landing-card-arrow { color: #888; }
.landing-card--disabled { opacity: 0.4; pointer-events: none; }
.landing-footer { padding: 3rem; font-size: 0.75rem; color: #333; }
@media (max-width: 640px) {
    .landing-nav, .landing-hero, .landing-footer { padding-left: 1.5rem; padding-right: 1.5rem; }
    .landing-grid { margin: 2rem 1.5rem; grid-template-columns: 1fr; }
    .landing-hero h1 { font-size: 1.5rem; }
}