/* CSS Variables */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #EEF2FF;
    --success: #10B981;
    --success-light: #D1FAE5;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --sidebar-width: 250px;
    --header-height: 60px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.5;
}

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

a:hover {
    text-decoration: underline;
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-700);
}

.sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.org-switcher select {
    width: 100%;
    padding: 0.5rem;
    background: var(--gray-800);
    color: white;
    border: 1px solid var(--gray-600);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    cursor: pointer;
}

.org-switcher select:focus {
    outline: none;
    border-color: var(--primary);
}

.org-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-menu {
    list-style: none;
    padding: 1rem 0;
    flex: 1;
}

.nav-menu li a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--gray-300);
    transition: all 0.2s;
}

.nav-menu li a:hover {
    background: var(--gray-800);
    color: white;
    text-decoration: none;
}

.nav-menu li.active a {
    background: var(--primary);
    color: white;
}

.nav-menu .icon {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--gray-700);
}

.user-info {
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--gray-400);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    max-width: 100%;
}

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-outline {
    background: transparent;
    border-color: var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: var(--gray-100);
}

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

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

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.alert-success {
    background: var(--success-light);
    color: #065F46;
}

.alert-error {
    background: var(--danger-light);
    color: #991B1B;
}

.alert-warning {
    background: var(--warning-light);
    color: #92400E;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group.has-error input,
.form-group.has-error select {
    border-color: var(--danger);
}

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

.help-text {
    display: block;
    color: var(--gray-500);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.form-section {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--gray-200);
}

.form-section h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--gray-200);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--gray-200);
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Quick Actions */
.quick-actions h3 {
    margin-bottom: 1rem;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    transition: all 0.2s;
    text-decoration: none;
    color: var(--gray-700);
}

.action-card:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-decoration: none;
}

.action-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.action-label {
    font-weight: 500;
}

/* Tables */
.table-container {
    background: white;
    border-radius: 0.5rem;
    border: 1px solid var(--gray-200);
    overflow: auto;
}

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

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.data-table th {
    background: var(--gray-50);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-600);
}

.data-table th.sortable a {
    color: var(--gray-600);
    text-decoration: none;
}

.data-table th.sortable a:hover {
    color: var(--primary);
}

.data-table tbody tr:hover {
    background: var(--gray-50);
}

.data-table .col-checkbox {
    width: 40px;
}

.data-table .col-actions {
    width: 150px;
    text-align: right;
}

.data-table .col-name a {
    font-weight: 500;
}

.data-table .col-phone {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.8125rem;
}

.guardian-info {
    display: flex;
    flex-direction: column;
}

.guardian-name {
    font-weight: 500;
}

.guardian-phone {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}

.empty-state {
    text-align: center;
    padding: 3rem !important;
    color: var(--gray-500);
}

.text-muted {
    color: var(--gray-400);
}

/* Filters */
.filters-bar {
    margin-bottom: 1rem;
}

.filters-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.search-box input {
    min-width: 300px;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
}

.filter-select select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    background: white;
}

.table-info {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 1rem;
}

/* Bulk Actions */
.bulk-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: 0.375rem;
}

.selected-count {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    margin-top: 1.5rem;
}

.page-link {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    color: var(--gray-600);
    background: white;
    text-decoration: none;
}

.page-link:hover {
    background: var(--gray-100);
    text-decoration: none;
}

.page-link.current {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    max-width: 400px;
    width: 100%;
}

.modal-content h3 {
    margin-bottom: 1rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.login-box {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.login-subtitle {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 2rem;
}

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

/* Import */
.import-container {
    max-width: 700px;
}

.import-instructions {
    background: var(--primary-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.import-instructions h3 {
    margin-bottom: 1rem;
}

.import-instructions ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.import-instructions li {
    margin-bottom: 0.5rem;
}

.import-instructions .note {
    background: white;
    padding: 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    margin-top: 1rem;
}

.upload-form {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    border: 1px solid var(--gray-200);
}

.file-upload {
    position: relative;
}

.file-upload input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 3rem;
    border: 2px dashed var(--gray-300);
    border-radius: 0.5rem;
    background: var(--gray-50);
    transition: all 0.2s;
}

.file-upload:hover .file-upload-label {
    border-color: var(--primary);
    background: var(--primary-light);
}

.file-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.file-text {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.file-hint {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Import Preview */
.import-summary {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.summary-item {
    flex: 1;
    min-width: 120px;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
}

.summary-item .summary-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.summary-item .summary-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.summary-info { background: var(--gray-100); }
.summary-success { background: var(--success-light); color: #065F46; }
.summary-warning { background: var(--warning-light); color: #92400E; }
.summary-error { background: var(--danger-light); color: #991B1B; }
.summary-danger { background: #FEE2E2; color: #991B1B; }
.summary-muted { background: var(--gray-100); color: var(--gray-600); }

.preview-section {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem 0.5rem 0 0;
    margin-bottom: 0;
}

.section-success { background: var(--success-light); color: #065F46; }
.section-warning { background: var(--warning-light); color: #92400E; }
.section-error { background: var(--danger-light); color: #991B1B; }
.section-danger { background: #FEE2E2; color: #991B1B; }
.section-muted { background: var(--gray-100); color: var(--gray-600); }

.section-desc {
    padding: 0.75rem 1rem;
    background: var(--gray-50);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    font-size: 0.875rem;
}

.preview-table th,
.preview-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.preview-table th {
    background: var(--gray-50);
    font-weight: 600;
}

.row-error { background: var(--danger-light); }
.row-warning { background: var(--warning-light); }
.row-deleted { background: #FEE2E2; }

.error-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: var(--danger);
    color: white;
    font-size: 0.75rem;
    border-radius: 0.25rem;
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
}

.warning-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: var(--warning);
    color: white;
    font-size: 0.75rem;
    border-radius: 0.25rem;
}

.changes-list {
    font-size: 0.8125rem;
}

.change-item {
    margin-bottom: 0.25rem;
}

.change-field {
    font-weight: 500;
}

.change-old {
    color: var(--danger);
    text-decoration: line-through;
}

.change-arrow {
    margin: 0 0.25rem;
    color: var(--gray-400);
}

.change-new {
    color: var(--success);
    font-weight: 500;
}

.import-actions {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 1rem;
    align-items: center;
}

details summary {
    cursor: pointer;
    padding: 0.75rem 1rem;
    background: var(--gray-100);
    font-size: 0.875rem;
}

details[open] summary {
    border-bottom: 1px solid var(--gray-200);
}

/* Export */
.export-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.export-card {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    border: 1px solid var(--gray-200);
    text-align: center;
}

.export-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.export-card h3 {
    margin-bottom: 1rem;
}

.export-card p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.export-count {
    font-weight: 500;
    color: var(--primary);
}

/* Settings */
.settings-container {
    max-width: 600px;
}

.settings-section {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--gray-200);
    margin-bottom: 1.5rem;
}

.settings-section h3 {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--gray-200);
}

.settings-form {
    max-width: 400px;
}

.info-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem 1rem;
}

.info-list dt {
    font-weight: 500;
    color: var(--gray-600);
}

.info-list dd {
    color: var(--gray-800);
}

/* MFA Setup */
.mfa-status {
    margin-bottom: 1rem;
}

.mfa-enabled {
    color: var(--success);
}

.qr-code-container {
    text-align: center;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: 0.5rem;
    margin: 1rem 0;
}

.qr-code-container img {
    border: 4px solid white;
    border-radius: 0.5rem;
}

.mfa-secret {
    text-align: center;
    margin-bottom: 1.5rem;
}

.mfa-secret code {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    border-radius: 0.375rem;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }
}

@media (max-width: 640px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .filters-form {
        flex-direction: column;
    }

    .search-box input {
        min-width: 100%;
    }

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

    .data-table {
        font-size: 0.875rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }
}