:root {
    --bg: #0b1020;
    --card: #111a33;
    --text: #e7ecff;
    --muted: rgba(231, 236, 255, 0.7);
    --line: rgba(231, 236, 255, 0.12);
    --primary: #4f7cff;
    --danger: #ff4d4f;
    --ok: #2ecc71;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: radial-gradient(1100px 600px at 20% 0%, rgba(79, 124, 255, 0.35), transparent 55%),
        radial-gradient(900px 500px at 90% 10%, rgba(46, 204, 113, 0.18), transparent 55%), var(--bg);
    color: var(--text);
    font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", sans-serif;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

.card {
    background: rgba(17, 26, 51, 0.75);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(10px);
}

.card-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-body {
    padding: 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    letter-spacing: 0.2px;
}

.brand-badge {
    width: 28px;
    height: 28px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), rgba(79, 124, 255, 0.2));
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.col {
    flex: 1 1 280px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    cursor: pointer;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.09);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), rgba(79, 124, 255, 0.4));
    border-color: rgba(79, 124, 255, 0.55);
}

.btn-primary:hover {
    filter: brightness(1.05);
}

.btn-danger {
    background: rgba(255, 77, 79, 0.12);
    border-color: rgba(255, 77, 79, 0.4);
    color: #ffd1d1;
}

.btn-danger:hover {
    background: rgba(255, 77, 79, 0.17);
}

.input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.22);
    color: var(--text);
    outline: none;
}

.input:focus {
    border-color: rgba(79, 124, 255, 0.55);
    box-shadow: 0 0 0 4px rgba(79, 124, 255, 0.15);
}

label {
    display: block;
    margin: 10px 0 6px;
    color: var(--muted);
    font-size: 12px;
}

.error {
    margin-top: 8px;
    color: #ffd1d1;
    background: rgba(255, 77, 79, 0.12);
    border: 1px solid rgba(255, 77, 79, 0.35);
    padding: 10px 12px;
    border-radius: 10px;
}

.flash {
    margin-bottom: 14px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(79, 124, 255, 0.35);
    background: rgba(79, 124, 255, 0.12);
    color: rgba(231, 236, 255, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 18px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-links a {
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid transparent;
    color: var(--muted);
}

.nav-links a.active,
.nav-links a:hover {
    border-color: var(--line);
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

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

.table th,
.table td {
    padding: 10px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.table th {
    color: var(--muted);
    font-weight: 600;
    font-size: 12px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 12px;
}

.badge.ok {
    border-color: rgba(46, 204, 113, 0.4);
    background: rgba(46, 204, 113, 0.1);
    color: rgba(231, 255, 241, 0.9);
}

.badge.danger {
    border-color: rgba(255, 77, 79, 0.45);
    background: rgba(255, 77, 79, 0.12);
    color: rgba(255, 220, 220, 0.95);
}