:root {
    color-scheme: light dark;
    --bg: #f7f7f8;
    --fg: #1b1b1f;
    --card-bg: #ffffff;
    --border: #d9d9de;
    --accent: #3b5bdb;
    --danger: #c92a2a;
    --muted: #6b6b76;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #17171a;
        --fg: #eaeaec;
        --card-bg: #232327;
        --border: #34343a;
        --accent: #7691f5;
        --danger: #ff6b6b;
        --muted: #9c9ca6;
    }
}

* { box-sizing: border-box; }

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

.topbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
}

.topbar-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.brand {
    font-weight: 700;
    text-decoration: none;
    color: var(--fg);
}

.topbar nav {
    display: flex;
    gap: 14px;
    flex: 1;
}

.topbar nav a {
    color: var(--muted);
    text-decoration: none;
}

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

.logout-form button {
    background: none;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 4px 10px;
    border-radius: 6px;
    cursor: pointer;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.15rem; margin-top: 32px; }

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.data-table th, .data-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
}

.data-table th {
    color: var(--muted);
    font-weight: 600;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table a { color: var(--accent); text-decoration: none; }

.badge {
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.8rem;
}
.badge.on { background: rgba(64, 192, 87, 0.18); color: #2f9e44; }
.badge.off { background: rgba(255, 107, 107, 0.18); color: var(--danger); }

.inline-form { display: inline-block; margin-right: 6px; }

button, .add-form input {
    font: inherit;
}

button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
}

button:hover { opacity: 0.9; }

.add-form {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    margin-top: 12px;
}

.add-form label {
    display: flex;
    flex-direction: column;
    font-size: 0.85rem;
    color: var(--muted);
    gap: 4px;
}

.add-form input {
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--fg);
}

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px;
    width: 280px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.login-card label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--muted);
}

.login-card input {
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--fg);
}

.login-card .error {
    color: var(--danger);
    font-size: 0.85rem;
    margin: 0;
}