/* ==========================================
   CSS variables and base root setup
   ========================================== */
:root {
    --sidebar-width: 260px;
    --header-height: 70px;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg-slate-50: #f8fafc;
    --bg-slate-100: #f1f5f9;
    --bg-slate-800: #1e293b;
    --border-slate-200: #e2e8f0;
}

/* ==========================================
   Layout Structure & Sidebar Navigation
   ========================================== */
.admin-layout {
    display: flex;
    min-height: 100vh;
    position: relative;
    overflow-x: clip;
    max-width: 100%;
    width: 100%;
}

.admin-sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-slate-800);
    color: #f8fafc;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1000;
    transition: transform 0.3s ease, visibility 0.3s ease;
    overflow-y: auto;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-brand {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-brand i,
.sidebar-brand svg {
    color: #3b82f6;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.sidebar-brand img,
.sidebar-brand-logo {
    height: 36px;
    width: auto;
    aspect-ratio: 4 / 1;
    max-width: 180px;
    object-fit: contain;
    flex-shrink: 0;
    display: block;
}

.logo-box img,
.logo-box-img {
    height: 36px;
    width: auto;
    aspect-ratio: 4 / 1;
    max-width: 180px;
    object-fit: contain;
    flex-shrink: 0;
    display: block;
}

.sidebar-menu {
    flex-grow: 1;
    padding: 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.menu-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748b;
    padding: 12px 12px 6px 12px;
    font-weight: 600;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    color: #cbd5e1;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}

.menu-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.menu-item.active {
    background-color: var(--primary);
    color: #fff;
}

.menu-item i,
.menu-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ==========================================
   Main Content Area & Top Header
   ========================================== */
.admin-main {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: calc(100% - var(--sidebar-width));
    max-width: 100%;
    overflow-x: clip;
    transition: margin-left 0.3s ease, width 0.3s ease;
}

.admin-header {
    height: var(--header-height);
    background-color: #fff;
    border-bottom: 1px solid var(--border-slate-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 900;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: #475569;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
}

.mobile-toggle:hover {
    background-color: var(--bg-slate-100);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-profile-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #1e293b;
    font-weight: 600;
    font-size: 0.875rem;
}

.avatar-circle {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: #3b82f6;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9375rem;
}

.logout-form {
    display: inline;
}

.logout-btn {
    background: none;
    border: 1px solid var(--border-slate-200);
    color: #ef4444;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.logout-btn:hover {
    background-color: #fef2f2;
    border-color: #fca5a5;
}

.admin-content {
    padding: 32px 24px;
    flex-grow: 1;
    max-width: 1200px;
    width: 100%;
    box-sizing: border-box;
    margin: 0 auto;
    overflow-x: clip;
}

/* ==========================================
   Responsive Overlays and Breakpoints
   ========================================== */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(2px);
    z-index: 950;
}

@media (max-width: 991px) {
    .admin-sidebar {
        transform: translateX(-100%);
        visibility: hidden;
        pointer-events: none;
        transition: transform 0.3s ease, visibility 0.3s ease;
    }

    .admin-sidebar.open {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
    }

    .admin-main {
        margin-left: 0;
        width: 100%;
    }

    .mobile-toggle {
        display: block;
    }

    .sidebar-overlay.open {
        display: block;
    }
}

@media (max-width: 768px) {
    .admin-content {
        padding: 20px 16px;
    }
    .admin-header {
        padding: 0 16px;
    }
}

/* ==========================================
   Alerts and Flash Messages
   ========================================== */
.admin-alert {
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-alert-success {
    background-color: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.admin-alert-error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* ==========================================
   Select2 Custom Styles
   ========================================== */
.select2-container--default .select2-selection--single {
    border: 1px solid var(--border-slate-200) !important;
    border-radius: 8px !important;
    height: 42px !important;
    padding: 6px 12px !important;
    font-size: 0.9375rem !important;
    background-color: #fff !important;
    display: flex !important;
    align-items: center !important;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: #334155 !important;
    line-height: 28px !important;
    padding-left: 0 !important;
}
.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 40px !important;
    right: 8px !important;
}
.select2-dropdown {
    border: 1px solid var(--border-slate-200) !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1) !important;
    font-size: 0.9375rem !important;
    background-color: #fff !important;
}
.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--primary) !important;
}
.select2-container--default .select2-search--dropdown .select2-search__field {
    border: 1px solid var(--border-slate-200) !important;
    border-radius: 6px !important;
    padding: 6px 10px !important;
    outline: none !important;
}

/* ==========================================
   Shared Forms, Filters, and Layout Cards
   ========================================== */
.filter-card {
    background: #fff;
    border: 1px solid var(--border-slate-200);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.filter-form {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 16px;
    align-items: end;
}

@media (max-width: 991px) {
    .filter-form {
        grid-template-columns: 1fr;
    }
}

.form-card {
    background: #fff;
    border: 1px solid var(--border-slate-200);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.data-table-card, .table-responsive {
    background: #fff;
    border: 1px solid var(--border-slate-200);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}

/* ==========================================
   Shared Tables and Rows
   ========================================== */
.users-table, .employees-table, .partners-table, .logs-table, .records-table, .admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.users-table th, .users-table td, 
.employees-table th, .employees-table td, 
.partners-table th, .partners-table td, 
.logs-table th, .logs-table td, 
.records-table th, .records-table td,
.admin-table th, .admin-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-slate-200);
}

.users-table th, .employees-table th, .partners-table th, .logs-table th, .records-table th, .admin-table th {
    background-color: var(--bg-slate-50);
    font-weight: 600;
    color: #475569;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.users-table tbody tr:hover, 
.employees-table tbody tr:hover, 
.partners-table tbody tr:hover, 
.logs-table tbody tr:hover, 
.records-table tbody tr:hover,
.admin-table tbody tr:hover {
    background-color: #fafafb;
}

/* ==========================================
   Action Buttons & Links
   ========================================== */
.action-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.8125rem;
    margin-right: 12px;
}

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

.action-link.danger {
    color: #ef4444;
}

/* ==========================================
   Status & Log Badges
   ========================================== */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-badge.active, .status-badge.status-approved, .status-badge.published, .status-badge.paid, .status-badge.success { 
    background-color: #dcfce7; 
    color: #15803d; 
}
.status-badge.pending, .status-badge.status-pending { 
    background-color: #fef3c7; 
    color: #d97706; 
}
.status-badge.suspended, .status-badge.status-rejected, .status-badge.failed { 
    background-color: #fee2e2; 
    color: #b91c1c; 
}
.status-badge.deleted, .status-badge.inactive { 
    background-color: #f1f5f9; 
    color: #64748b; 
}

/* ==========================================
   Geographic & Academic Sidebars/Grids Layout
   ========================================== */
.location-layout, .referral-layout {
    display: grid;
    grid-template-columns: 1fr 2.5fr;
    gap: 24px;
    align-items: start;
}

@media (max-width: 1024px) {
    .location-layout, .referral-layout {
        grid-template-columns: 1fr;
    }
}

.location-nav {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-slate-200);
    padding-bottom: 12px;
}

.location-nav-link {
    padding: 8px 16px;
    border-radius: 6px;
    color: #475569;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
}

.location-nav-link:hover {
    background-color: var(--bg-slate-100);
    color: var(--primary);
}

.location-nav-link.active {
    background-color: var(--primary);
    color: white;
}

/* ==========================================
   Referral Portal Specific Widgets
   ========================================== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}
@media (max-width: 768px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }
}
.metric-card {
    background: white;
    border: 1px solid var(--border-slate-200);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.metric-title {
    font-size: 0.8125rem;
    text-transform: uppercase;
    font-weight: 600;
    color: #64748b;
    letter-spacing: 0.05em;
}
.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: #0f172a;
}
.code-badge {
    font-family: monospace;
    background-color: var(--bg-slate-100);
    color: var(--text-800);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
}

/* ==========================================
   Modal Overlay and Dialog Popup Styles
   ========================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    transition: all 250ms ease-in-out;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    width: 100%;
    max-width: 460px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px) scale(0.97);
    transition: transform 250ms ease-in-out;
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 0;
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    transition: all 150ms;
}

.modal-close:hover {
    background-color: #f1f5f9;
    color: #475569;
}

.modal-body {
    padding: 20px 24px 24px;
}