/**
 * GroupBook Admin Panel
 * A product of Med Staff Tracker LLC
 * Copyright 2026
 */

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

:root {
    --primary: #4A90D9;
    --primary-dark: #357ABD;
    --primary-light: #EBF3FC;
    --success: #27AE60;
    --success-light: #E8F8F0;
    --warning: #F39C12;
    --warning-light: #FEF6E7;
    --danger: #E74C3C;
    --danger-light: #FDEDEC;
    --info: #3498DB;
    --info-light: #EBF5FB;
    --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;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--gray-800);
    background: var(--gray-50);
}

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

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

/* --- Sidebar --- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.3s;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-700);
}

.sidebar-header h1 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}

.sidebar-header small {
    color: var(--gray-400);
    font-size: 11px;
    display: block;
    margin-top: 2px;
}

.sidebar-nav {
    padding: 12px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    color: var(--gray-300);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.15s, color 0.15s;
    gap: 10px;
}

.sidebar-nav a:hover {
    background: var(--gray-700);
    color: #fff;
    text-decoration: none;
}

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

.sidebar-nav .nav-icon {
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-nav .nav-divider {
    height: 1px;
    background: var(--gray-700);
    margin: 8px 20px;
}

/* --- Main Content --- */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
}

/* --- Top Bar --- */
.topbar {
    height: var(--header-height);
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-left h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--gray-500);
}

.topbar-right a {
    color: var(--gray-500);
}

/* --- Content Area --- */
.content {
    padding: 24px;
}

/* --- Cards --- */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: 0 0 var(--radius) var(--radius);
}

/* --- Stat Cards Grid --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    padding: 20px;
}

.stat-card .stat-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-card .stat-sub {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 4px;
}

.stat-card.stat-primary { border-left: 4px solid var(--primary); }
.stat-card.stat-success { border-left: 4px solid var(--success); }
.stat-card.stat-warning { border-left: 4px solid var(--warning); }
.stat-card.stat-danger { border-left: 4px solid var(--danger); }
.stat-card.stat-info { border-left: 4px solid var(--info); }

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

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

table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
    color: var(--gray-700);
}

table tr:hover td {
    background: var(--gray-50);
}

table th a {
    color: var(--gray-500);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

table th a:hover {
    color: var(--gray-700);
}

table th a.sorted {
    color: var(--primary);
}

/* --- Badges --- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-primary { background: var(--primary-light); color: var(--primary-dark); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-secondary { background: var(--gray-100); color: var(--gray-600); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    line-height: 1.4;
}

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

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
}

.btn-success {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}
.btn-danger:hover {
    background: #C0392B;
    color: #fff;
}

.btn-outline {
    background: #fff;
    color: var(--gray-600);
    border-color: var(--gray-300);
}
.btn-outline:hover {
    background: var(--gray-50);
    color: var(--gray-800);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-group {
    display: flex;
    gap: 8px;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    color: var(--gray-800);
    background: #fff;
    transition: border-color 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
}

select.form-control {
    appearance: auto;
}

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

/* --- Filters Bar --- */
.filters-bar {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filters-bar .search-box {
    flex: 1;
    min-width: 200px;
    max-width: 400px;
}

/* --- Alerts --- */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-success { background: var(--success-light); color: var(--success); border: 1px solid #A3E4C0; }
.alert-danger { background: var(--danger-light); color: var(--danger); border: 1px solid #F5B7B1; }
.alert-warning { background: var(--warning-light); color: var(--warning); border: 1px solid #FAD7A0; }
.alert-info { background: var(--info-light); color: var(--info); border: 1px solid #AED6F1; }

/* --- Pagination --- */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 16px;
}

.pagination ul {
    display: flex;
    list-style: none;
    gap: 4px;
}

.pagination li a,
.pagination li span {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-size: 13px;
    color: var(--gray-600);
    text-decoration: none;
}

.pagination li a:hover {
    background: var(--gray-100);
    text-decoration: none;
}

.pagination li.active span {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.pagination li.disabled span {
    color: var(--gray-300);
    background: var(--gray-50);
    cursor: not-allowed;
}

/* --- Detail Page --- */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.detail-grid.single {
    grid-template-columns: 1fr;
}

.detail-row {
    display: flex;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    width: 140px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-500);
}

.detail-value {
    font-size: 14px;
    color: var(--gray-800);
    word-break: break-word;
}

/* --- Charts --- */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.chart-container {
    position: relative;
    height: 280px;
}

/* --- Login Page --- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-700) 100%);
}

.login-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    padding: 40px;
}

.login-card h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
    text-align: center;
}

.login-card .subtitle {
    text-align: center;
    color: var(--gray-400);
    font-size: 13px;
    margin-bottom: 24px;
}

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

.login-card .btn {
    width: 100%;
    justify-content: center;
    padding: 10px;
    font-size: 14px;
}

/* --- Modal (simple confirm) --- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

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

.modal-box {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 440px;
    padding: 24px;
}

.modal-box h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.modal-box p {
    color: var(--gray-600);
    margin-bottom: 20px;
}

.modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-400);
}

.empty-state p {
    font-size: 15px;
}

/* --- Utility --- */
.text-muted { color: var(--gray-400); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.fw-bold { font-weight: 600; }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .filters-bar .search-box {
        max-width: none;
    }
}

/* --- Tier Cards --- */
.tier-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.tier-card {
    background: #fff;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.tier-card:hover {
    border-color: var(--gray-400);
    background: var(--gray-50);
}

.tier-card-active {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.2);
}

.tier-card-selected {
    border-color: var(--success);
    background: var(--success-light);
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.2);
}

.tier-card-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 8px;
}

.tier-card-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-800);
}

.tier-current-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    background: var(--primary);
    color: #fff;
}

.tier-card-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.tier-price-period {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-500);
}

.tier-card-features {
    font-size: 12px;
    color: var(--gray-600);
    text-align: left;
}

.tier-card-features div {
    padding: 2px 0;
}

@media (max-width: 600px) {
    .tier-cards {
        grid-template-columns: 1fr;
    }
}

/* --- File Input --- */
input[type="file"].form-control {
    padding: 8px 12px;
    cursor: pointer;
}

input[type="file"].form-control::file-selector-button {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 12px;
    font-size: 13px;
    font-weight: 500;
    transition: background 0.15s;
}

input[type="file"].form-control::file-selector-button:hover {
    background: var(--primary-dark);
}

/* --- Checkbox Label --- */
input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* --- Code formatting --- */
code {
    background: var(--gray-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    color: var(--gray-700);
}

/* --- Btn Warning --- */
.btn-warning {
    background: var(--warning);
    color: #fff;
    border-color: var(--warning);
}
.btn-warning:hover {
    background: #D68910;
    color: #fff;
}

/* --- Stat Secondary --- */
.stat-card.stat-secondary { border-left: 4px solid var(--gray-400); }