:root {
    color-scheme: light dark;
    --fg: #1b1b1f;
    --bg: #ffffff;
    --muted: #6b6b76;
    --border: #ddd;
    --accent: #7a4fd6;
}

@media (prefers-color-scheme: dark) {
    :root {
        --fg: #e8e8ec;
        --bg: #16161a;
        --muted: #9a9aa5;
        --border: #333338;
    }
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--fg);
    background: var(--bg);
    margin: 0;
}

.nav {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
}

.nav a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

h1 {
    margin-bottom: 1rem;
}

input[type="search"] {
    width: 100%;
    max-width: 320px;
    padding: 0.5rem 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--fg);
    font-size: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.muted {
    color: var(--muted);
    font-size: 0.9rem;
}

.error {
    color: #c0392b;
}

.success {
    color: #2e7d32;
}

form.stacked label {
    display: block;
    margin-bottom: 0.75rem;
}

form.stacked input,
form.stacked select {
    display: block;
    width: 100%;
    max-width: 320px;
    padding: 0.5rem 0.75rem;
    margin-top: 0.25rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--fg);
    font-size: 1rem;
}

button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent);
    border-radius: 6px;
    background: var(--accent);
    color: white;
    font-weight: 600;
    cursor: pointer;
}