/* ============================================
   Admin Panel - Modern Minimalist Design
   ============================================ */

:root {
    /* Light mode (default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --accent-primary: #0d6efd;
    --accent-hover: #0b5ed7;
    --accent-light: #e7f1ff;
    --success: #198754;
    --danger: #dc3545;
    --warning: #ffc107;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: 0.2s ease;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #242424;
        --bg-tertiary: #2d2d2d;
        --text-primary: #f8f9fa;
        --text-secondary: #adb5bd;
        --text-muted: #6c757d;
        --border-color: #404040;
        --accent-light: #1a3a5c;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
        --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    }
}

/* ============================================
   Base Styles
   ============================================ */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

#app {
    min-height: 100vh;
}

/* ============================================
   View Management
   ============================================ */

.view {
    display: none;
}

.view.active {
    display: block;
}

/* ============================================
   Login/TOTP Views
   ============================================ */

.login-container,
.setup-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card,
.setup-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
}

.setup-card {
    max-width: 480px;
}

.login-header,
.setup-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1,
.setup-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.subtitle.warning {
    color: var(--warning);
}

/* ============================================
   Forms
   ============================================ */

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* TOTP Code Input */
#totp-code,
#setup-code,
#recovery-code {
    text-align: center;
    font-size: 1.5rem;
    letter-spacing: 0.5rem;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-color);
}

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

.btn-danger:hover {
    opacity: 0.9;
}

.btn-link {
    background: none;
    color: var(--accent-primary);
    padding: 0.5rem;
}

.btn-link:hover {
    text-decoration: underline;
}

.btn-block {
    width: 100%;
}

.btn-google {
    background: #ffffff;
    color: #3c4043;
    border: 1px solid #dadce0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-weight: 500;
}

.btn-google:hover {
    background: #f8f9fa;
    border-color: #d2d5d9;
}

@media (prefers-color-scheme: dark) {
    .btn-google {
        background: #2d2d2d;
        color: #e8eaed;
        border-color: #5f6368;
    }
    .btn-google:hover {
        background: #3c3c3c;
    }
}

.oauth-buttons {
    margin-bottom: 1rem;
}

.divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.divider span {
    padding: 0 1rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    color: var(--text-secondary);
}

.btn-icon:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   Messages
   ============================================ */

.message {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.message-error {
    background: #f8d7da;
    color: #842029;
    border: 1px solid #f5c2c7;
}

.message-success {
    background: #d1e7dd;
    color: #0f5132;
    border: 1px solid #badbcc;
}

.message-info {
    background: var(--accent-light);
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
}

/* ============================================
   TOTP Setup
   ============================================ */

.qr-section {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

#qr-code-container img {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-sm);
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
}

.secret-display {
    margin-top: 1rem;
}

.secret-display p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.secret-display code {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.9rem;
    margin-right: 0.5rem;
}

.totp-footer {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   Recovery Codes
   ============================================ */

.recovery-codes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.recovery-code {
    padding: 0.75rem;
    text-align: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.9rem;
}

.recovery-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

/* ============================================
   Dashboard Header
   ============================================ */

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.header-left h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#admin-username {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ============================================
   Navigation
   ============================================ */

.admin-nav {
    display: flex;
    gap: 0.25rem;
    padding: 0.75rem 2rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
}

.nav-item {
    padding: 0.625rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition);
}

.nav-item:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.nav-item.active {
    color: var(--accent-primary);
    background: var(--accent-light);
}

/* ============================================
   Main Content
   ============================================ */

.admin-content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section {
    display: none;
}

.section.active {
    display: block;
}

.section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 1.5rem 0 1rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 {
    margin-bottom: 0;
}

.section-actions {
    display: flex;
    gap: 0.75rem;
}

.search-input {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    width: 250px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* ============================================
   Stats Grid
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ============================================
   Tables
   ============================================ */

.table-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

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

.data-table th,
.data-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background: var(--bg-secondary);
}

.data-table .empty-row {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
}

/* Checkbox in tables */
.data-table th:first-child,
.data-table td:first-child {
    width: 40px;
    text-align: center;
}

.data-table input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* ============================================
   Bulk Actions
   ============================================ */

.bulk-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--accent-light);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.bulk-actions span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ============================================
   Filter Bar
   ============================================ */

.filter-bar {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.filter-bar select,
.filter-bar input[type="date"] {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* ============================================
   Event Type Badges
   ============================================ */

.event-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.event-badge.user_registration { background: #e3f2fd; color: #1976d2; }
.event-badge.country_purchase { background: #f3e5f5; color: #7b1fa2; }
.event-badge.country_listed { background: #fff3e0; color: #f57c00; }
.event-badge.user_country_sale { background: #e8f5e9; color: #388e3c; }
.event-badge.country_edit { background: #fff8e1; color: #f9a825; }
.event-badge.admin_action { background: #ffebee; color: #d32f2f; }

/* ============================================
   Load More
   ============================================ */

.load-more {
    text-align: center;
    margin-top: 1.5rem;
}

/* ============================================
   Analytics Grid
   ============================================ */

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.analytics-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.analytics-card h3 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
}

.analytics-actions {
    margin-top: 1.5rem;
    text-align: center;
}

/* ============================================
   Settings Grid
   ============================================ */

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.settings-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.settings-card h3 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
    font-weight: 600;
}

.settings-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.export-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

/* ============================================
   Modal
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ============================================
   Role Badge
   ============================================ */

.role-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.role-badge.admin {
    background: #fef3c7;
    color: #92400e;
}

.role-badge.user {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* ============================================
   Status Indicators
   ============================================ */

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.status-dot.active { background: var(--success); }
.status-dot.inactive { background: var(--text-muted); }

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .admin-nav {
        padding: 0.5rem 1rem;
    }

    .admin-content {
        padding: 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: stretch;
    }

    .section-actions {
        flex-wrap: wrap;
    }

    .search-input {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .analytics-grid {
        grid-template-columns: 1fr;
    }

    .settings-grid {
        grid-template-columns: 1fr;
    }

    .recovery-codes-grid {
        grid-template-columns: 1fr;
    }

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

    .data-table {
        min-width: 600px;
    }
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.view.active {
    animation: fadeIn 0.2s ease;
}

.modal {
    animation: slideUp 0.2s ease;
}