* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f0f2f5;
    color: #1a1a2e;
    line-height: 1.6;
}

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

.sidebar {
    width: 240px;
    background: #1a1a2e;
    color: #fff;
    padding: 1.5rem 0;
    flex-shrink: 0;
}

.sidebar-header h1 {
    font-size: 1.25rem;
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 1rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
}

.nav-item {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
}

.main-content {
    flex: 1;
    padding: 2rem;
    max-width: calc(100vw - 240px);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: #fff;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
}

.stat-value.active { color: #22c55e; }
.stat-value.blocked { color: #ef4444; }
.stat-value.expired { color: #f59e0b; }

.summary {
    background: #fff;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.alert {
    margin-bottom: 1.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid transparent;
    border-radius: 6px;
}

.alert-success {
    background: #dcfce7;
    border-color: #86efac;
    color: #166534;
}

.alert-error {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #991b1b;
}

.table {
    width: 100%;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    border-collapse: collapse;
}

.table th, .table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #555;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tr:hover td {
    background: #f8f9fa;
}

.table .empty {
    text-align: center;
    color: #999;
    padding: 2rem;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-active { background: #dcfce7; color: #166534; }
.badge-blocked { background: #fee2e2; color: #991b1b; }
.badge-expired { background: #fef3c7; color: #92400e; }
.badge-grace_period { background: #e0f2fe; color: #075985; }

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
    font-size: 0.85rem;
    text-decoration: none;
    color: #1a1a2e;
    transition: all 0.2s;
}

.btn:hover {
    background: #f3f4f6;
}

.btn-primary {
    background: #1a1a2e;
    color: #fff;
    border-color: #1a1a2e;
}

.btn-primary:hover {
    background: #2d2d4a;
}

.btn-danger {
    background: #ef4444;
    color: #fff;
    border-color: #ef4444;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-success {
    background: #22c55e;
    color: #fff;
    border-color: #22c55e;
}

.btn-success:hover {
    background: #16a34a;
}

.btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
}

.actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.inline-form {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.inline-form input[type="datetime-local"] {
    max-width: 160px;
    padding: 0.25rem;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.75rem;
}

.search-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.search-bar input {
    flex: 1;
    max-width: 400px;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.9rem;
}

.form {
    background: #fff;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    max-width: 600px;
}

.form h3 {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #eee;
    color: #333;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: #374151;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

code {
    background: #f3f4f6;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: "SF Mono", Monaco, monospace;
}

/* ── Sidebar footer / logout ── */

.sidebar {
    display: flex;
    flex-direction: column;
}

.sidebar-nav {
    flex: 1;
}

.sidebar-footer {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: auto;
    padding-top: 0.5rem;
}

.logout {
    color: #fca5a5 !important;
}

.logout:hover {
    background: rgba(239, 68, 68, 0.1) !important;
    color: #ef4444 !important;
}

/* ── Login page ── */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #1a1a2e;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}

.login-card {
    background: #fff;
    border-radius: 8px;
    padding: 2.5rem 2rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
    text-align: center;
}

.login-card h1 {
    font-size: 1.5rem;
    color: #1a1a2e;
    margin-bottom: 0.25rem;
}

.login-subtitle {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.login-form {
    text-align: left;
}

.btn-block {
    width: 100%;
    margin-top: 0.5rem;
}

/* ── Error page ── */

.error-page {
    background: #fff;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    text-align: center;
}

.error-page h2 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: #991b1b;
}

.error-page p {
    color: #666;
    margin-bottom: 1.5rem;
}