:root {
    --bg: #0f1419;
    --surface: #1a2028;
    --surface-2: #232a35;
    --border: #2d3744;
    --text: #e6edf3;
    --text-dim: #8a96a8;
    --accent: #4f8cff;
    --accent-hover: #6ba0ff;
    --error: #f87171;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
}

.hero {
    text-align: center;
    padding: 2rem 0 2.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}
.hero h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}
.tagline {
    margin: 0.5rem 0 0;
    color: var(--text-dim);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
}
.center { text-align: center; }

.btn {
    display: inline-block;
    padding: 0.6rem 1.4rem;
    border-radius: 6px;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}
.btn.primary {
    background: var(--accent);
    color: #fff;
    margin-top: 1rem;
}
.btn.primary:hover { background: var(--accent-hover); color: #fff; }
.btn.secondary {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}
.btn.secondary:hover { border-color: var(--accent); color: var(--accent); }

.user-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 1.5rem;
}
.user-info { color: var(--text-dim); }
.user-info strong { color: var(--text); font-weight: 500; }

.group { margin-bottom: 2rem; }
.group h2 {
    margin: 0 0 0.75rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.items {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 0.75rem;
}
.item a {
    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    color: var(--text);
    transition: border-color 0.15s, background 0.15s;
}
.item a:hover {
    border-color: var(--accent);
    background: var(--surface-2);
    color: var(--text);
}
.item .title { display: block; font-weight: 500; }
.item .desc {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--text-dim);
}

.error { color: var(--error); }