* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: #f5f6f8;
    color: #222;
}

a {
    color: #2563eb;
    text-decoration: none;
}

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

.login-card {
    width: 360px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    padding: 28px;
}

.login-card h1 {
    margin: 0 0 8px;
    font-size: 22px;
}

.login-card .sub {
    margin: 0 0 18px;
    color: #666;
}

.login-card label {
    display: block;
    margin: 10px 0 6px;
    font-size: 14px;
}

.login-card input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 8px;
}

.login-card button {
    margin-top: 14px;
    width: 100%;
    padding: 10px 12px;
    border: 0;
    border-radius: 8px;
    background: #2563eb;
    color: #fff;
    cursor: pointer;
}

.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    background: #111827;
    color: #fff;
    padding: 20px 16px;
}

.logo {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
}

.menu-item {
    display: block;
    padding: 10px 12px;
    margin-bottom: 8px;
    border-radius: 8px;
    color: #e5e7eb;
}

.menu-item.active,
.menu-item:hover {
    background: #1f2937;
    color: #fff;
}

.sidebar form {
    margin: 0;
}

button.menu-item {
    background: none;
    border: 0;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font: inherit;
}

.content {
    flex: 1;
    padding: 24px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.topbar h1 {
    margin: 0;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

.card {
    background: #fff;
    border-radius: 10px;
    padding: 18px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.card .k {
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 8px;
}

.card .v {
    font-size: 28px;
    font-weight: 700;
}

.alert {
    padding: 10px 12px;
    border-radius: 8px;
    margin-bottom: 12px;
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.simple-page {
    max-width: 860px;
    margin: 28px auto;
    background: #fff;
    border-radius: 10px;
    padding: 20px;
}

.panel {
    background: #fff;
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 14px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.panel-title {
    font-weight: 700;
    margin-bottom: 10px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 12px;
}

.form-grid .full {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: #374151;
}

input[type="text"],
input[type="number"],
input[type="password"],
select {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #fff;
}

.muted {
    color: #6b7280;
    font-size: 12px;
}

.btn {
    display: inline-block;
    border: 1px solid #d1d5db;
    background: #fff;
    color: #1f2937;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
}

.btn-primary {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

.btn-danger {
    background: #dc2626;
    border-color: #dc2626;
    color: #fff;
}

.btn-sm {
    padding: 5px 8px;
    font-size: 12px;
}

.btn.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.filter-row {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr auto auto auto;
    gap: 10px;
    align-items: center;
}

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

.table th,
.table td {
    border-bottom: 1px solid #e5e7eb;
    padding: 10px 8px;
    text-align: left;
    vertical-align: middle;
    font-size: 13px;
}

.table th {
    font-weight: 700;
    background: #f9fafb;
}

.text-center {
    text-align: center;
}

.ops {
    white-space: nowrap;
}

.inline-form {
    display: inline-block;
    margin: 0 2px;
}

.pager {
    margin-top: 12px;
    display: flex;
    gap: 8px;
    align-items: center;
}

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
}

.status-unused {
    background: #e0f2fe;
    color: #075985;
}

.status-active {
    background: #dcfce7;
    color: #166534;
}

.status-expired {
    background: #fee2e2;
    color: #991b1b;
}

.status-disabled {
    background: #f3f4f6;
    color: #374151;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(280px, 1fr));
    gap: 10px 16px;
}

.detail-grid .label {
    color: #6b7280;
    margin-right: 10px;
}

.detail-grid .val {
    color: #111827;
}

.mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 12px;
}

.toolbar {
    margin-top: 10px;
}