:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-card: #21242f;
    --bg-input: #2a2d3a;
    --border: #2e3140;
    --text-primary: #e4e6eb;
    --text-secondary: #9ca3af;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
}

* { box-sizing: border-box; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

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

.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-logo {
    padding: 24px 20px;
    font-size: 20px;
    font-weight: 700;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-logo .logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.sidebar-nav {
    padding: 16px 12px;
}

.sidebar-nav .nav-section {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    padding: 12px 12px 6px;
    font-weight: 600;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all 0.15s;
    font-size: 14px;
}

.sidebar-nav a:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.sidebar-nav a.active {
    background: var(--accent);
    color: #fff;
}

.sidebar-nav a .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.main {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    margin: 0;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.card-header {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-card.accent .stat-value { color: var(--accent); }
.stat-card.success .stat-value { color: var(--success); }
.stat-card.danger .stat-value { color: var(--danger); }
.stat-card.warning .stat-value { color: var(--warning); }

.table-wrap {
    overflow-x: auto;
}

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

table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

table tr:hover td {
    background: rgba(99, 102, 241, 0.04);
}

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-active { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.badge-inactive { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-expired { background: rgba(245, 158, 11, 0.15); color: var(--warning); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    color: #fff;
}

.btn-primary { background: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal h3 {
    margin: 0 0 20px;
    font-size: 18px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin: 0 0 8px;
    font-size: 24px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 28px;
    font-size: 14px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.copy-btn {
    cursor: pointer;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 2px 6px;
}
.copy-btn:hover { color: var(--accent); }

@media (max-width: 768px) {
    .sidebar { display: none; }
    .main { margin-left: 0; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}