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

:root {
    --bg-primary: #0B0E14;
    --bg-secondary: #0F172A;
    --bg-card: #1E293B;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border-color: #334155;
    --accent-blue: #38BDF8;
    --accent-cyan: #22D3EE;
    --accent-orange: #F97316;
    --success: #4FD1C5;
    --danger: #EF4444;
    --warning: #F59E0B;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Layout */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 20px;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.user-info {
    font-size: 13px;
    color: var(--text-muted);
}

.nav-menu {
    list-style: none;
    padding: 12px 0;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    display: block;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-menu a:hover {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    border-left-color: var(--accent-blue);
}

.nav-menu li.active a {
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent-blue);
    border-left-color: var(--accent-blue);
}

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

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 600;
}

.page-actions {
    display: flex;
    gap: 12px;
}

/* Card */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-blue);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-cyan);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #334155;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #DC2626;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-copy {
    padding: 4px 10px;
    font-size: 12px;
    background: var(--bg-card);
    color: var(--accent-blue);
    border: 1px solid var(--border-color);
}

.btn-copy:hover {
    background: var(--accent-blue);
    color: var(--bg-primary);
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.form-hint {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--text-muted);
}

.required {
    color: var(--danger);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.form-row {
    display: flex;
    gap: 16px;
    align-items: flex-end;
}

.form-row .form-group {
    flex: 1;
}

.filter-form {
    padding: 24px;
}

/* Table */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background: var(--bg-card);
}

.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: rgba(56, 189, 248, 0.05);
}

.table-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
}

.badge-success {
    background: rgba(79, 209, 197, 0.2);
    color: var(--success);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-success {
    color: var(--success);
}

/* Token Display */
.token-display {
    display: inline-block;
    padding: 4px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--accent-cyan);
}

/* Alert */
.alert {
    padding: 14px 18px;
    border-radius: 6px;
    margin-bottom: 24px;
    font-size: 14px;
}

.alert-success {
    background: rgba(79, 209, 197, 0.15);
    border: 1px solid rgba(79, 209, 197, 0.3);
    color: var(--success);
}

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

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

.page-link {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.page-link:hover {
    background: var(--accent-blue);
    color: var(--bg-primary);
    border-color: var(--accent-blue);
}

.page-info {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Detail Grid */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    padding: 24px;
}

.detail-item label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-item div {
    font-size: 14px;
    color: var(--text-primary);
}

/* JSON Viewer */
.json-viewer {
    padding: 24px;
    background: var(--bg-primary);
    overflow-x: auto;
}

.json-viewer pre {
    font-family: 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--accent-cyan);
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Login */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    width: 100%;
    max-width: 420px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 24px;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-footer {
    margin-top: 24px;
    text-align: center;
}

/* Utilities */
.text-center {
    text-align: center;
}

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

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--danger);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content {
        margin-left: 0;
        padding: 20px;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .detail-grid {
        grid-template-columns: 1fr;
    }
    
    .table-actions {
        flex-direction: column;
    }
    
    .form-row {
        flex-direction: column;
    }
}