/* CSS Styling for MyEmailHosts Admin Panel */

/* 1. Design Tokens & Color Variables */
:root {
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --sidebar-bg: #ffffff;
    --sidebar-text: #495057;
    --sidebar-active-bg: #e9ecef;

    /* Fallback primary colors — overridden by inline PHP style per page */
    --primary-color: #0056b3;
    --primary-hover: #003d80;

    --success-color: #28a745;
    --warning-color: #ffc107;
    --warning-text: #856404;
    --danger-color: #dc3545;
    --info-color: #17a2b8;

    --font-family: 'Inter', system-ui, -apple-system, sans-serif;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.05);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Class Override and Preferences */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --card-bg: #1e1e1e;
        --text-color: #f8f9fa;
        --text-secondary: #adb5bd;
        --border-color: #2d2d2d;
        --sidebar-bg: #1e1e1e;
        --sidebar-text: #e0e0e0;
        --sidebar-active-bg: #2d2d2d;
        --shadow-md: 0 4px 12px rgba(0,0,0,0.25);
        --primary-color: #1e90ff;
        --primary-hover: #4aa8ff;
        --warning-text: #ffd95c;
    }
}

body.light-mode {
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --sidebar-bg: #ffffff;
    --sidebar-text: #495057;
    --sidebar-active-bg: #e9ecef;
    --shadow-md: 0 4px 6px rgba(0,0,0,0.05);
    --warning-text: #856404;
}

body.dark-mode {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #f8f9fa;
    --text-secondary: #adb5bd;
    --border-color: #2d2d2d;
    --sidebar-bg: #1e1e1e;
    --sidebar-text: #e0e0e0;
    --sidebar-active-bg: #2d2d2d;
    --shadow-md: 0 4px 12px rgba(0,0,0,0.25);
    --warning-text: #ffd95c;
}

/* 2. Global Resets & Layout */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* App Container Layout */
.app-container {
    display: flex;
    min-height: 100vh;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

/* 3. Sidebar Navigation Styles */
.app-sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: var(--transition);
    z-index: 100;
}

.sidebar-header {
    height: 70px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-nav {
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex-grow: 1;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 15px;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-item.active {
    background-color: var(--primary-color);
    color: #ffffff;
}

.nav-item.active .material-symbols-outlined {
    color: #ffffff;
}

.nav-item .material-symbols-outlined {
    font-size: 20px;
    color: var(--text-secondary);
}

.nav-item:hover .material-symbols-outlined {
    color: var(--primary-color);
}

/* Hover accessibility override for active menu items */
.nav-item.active:hover {
    background-color: var(--primary-hover);
    color: #ffffff;
}

.nav-item.active:hover .material-symbols-outlined {
    color: #ffffff;
}

.logout-btn {
    margin-top: auto;
    color: var(--danger-color);
}

.logout-btn .material-symbols-outlined {
    color: var(--danger-color);
}

.logout-btn:hover {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

/* Hover accessibility override for logout button icon */
.logout-btn:hover .material-symbols-outlined {
    color: var(--danger-color);
}

/* 4. Top Header & Nav */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.content-header {
    height: 70px;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    transition: var(--transition);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
}

.page-title {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.domain-select-dropdown {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    outline: none;
    font-family: inherit;
    font-weight: 500;
}

.domain-context-badge {
    background-color: rgba(0, 86, 179, 0.1);
    color: var(--primary-color);
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

/* Hide light/dark icons accordingly */
body.dark-mode .dark-icon,
body:not(.dark-mode) .light-icon {
    display: none;
}
@media (prefers-color-scheme: dark) {
    body:not(.light-mode) .dark-icon {
        display: none;
    }
    body:not(.light-mode) .light-icon {
        display: inline-block;
    }
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-left: 15px;
    border-left: 1px solid var(--border-color);
}

.user-profile-badge .material-symbols-outlined {
    font-size: 32px;
    color: var(--text-secondary);
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* 5. Core Interface Layout components */
.page-body {
    padding: 30px;
    flex-grow: 1;
    overflow-y: auto;
}

/* Glassmorphic Cards & Grids */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    margin-top: 5px;
}

.stat-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

.stat-icon-wrapper.blue { background-color: #007bff; }
.stat-icon-wrapper.green { background-color: #28a745; }
.stat-icon-wrapper.yellow { background-color: #ffc107; }
.stat-icon-wrapper.red { background-color: #dc3545; }

/* Grid Content blocks */
.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    padding: 24px;
    margin-bottom: 25px;
    transition: var(--transition);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
}

/* Search and Actions bar above tables */
.table-actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input-wrapper {
    position: relative;
    max-width: 320px;
    flex-grow: 1;
}

.search-input-wrapper .material-symbols-outlined {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 18px;
}

.search-input {
    width: 100%;
    padding: 10px 12px 10px 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.15);
}

.actions-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
    text-decoration: none;
}

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

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

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

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

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

.btn-danger:hover {
    background-color: #bd2130;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* 6. Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    outline: none;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    background-color: var(--card-bg);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* Switch styling */
.switch-group {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

/* 7. Tables & Responsive Layouts */
.table-responsive-wrapper {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 15px;
}

.table-custom {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.92rem;
}

.table-custom th {
    background-color: var(--bg-color);
    padding: 14px 18px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
    user-select: none;
}

.table-custom th.sortable {
    cursor: pointer;
}

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

.table-custom th.sortable::after {
    content: ' ↕';
    font-size: 0.8rem;
    opacity: 0.5;
}

.table-custom td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

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

.table-custom tbody tr:hover {
    background-color: rgba(0, 86, 179, 0.02);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-success { background-color: rgba(40, 167, 69, 0.12); color: var(--success-color); }
.badge-danger { background-color: rgba(220, 53, 69, 0.12); color: var(--danger-color); }
.badge-warning { background-color: rgba(255, 193, 7, 0.15); color: var(--warning-text, #856404); }
.badge-info { background-color: rgba(23, 162, 184, 0.12); color: var(--info-color); }

/* Alert banners — used for page-level error/success messages */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
    border: 1px solid transparent;
    line-height: 1.5;
}

.alert .material-symbols-outlined {
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    border-color: rgba(220, 53, 69, 0.25);
    color: var(--danger-color);
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    border-color: rgba(40, 167, 69, 0.25);
    color: var(--success-color);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.12);
    border-color: rgba(255, 193, 7, 0.3);
    color: var(--warning-text, #856404);
}

.alert-info {
    background-color: rgba(23, 162, 184, 0.1);
    border-color: rgba(23, 162, 184, 0.25);
    color: var(--info-color);
}

/* Row Selection */
.checkbox-cell {
    width: 40px;
    text-align: center;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 550px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: translateY(20px);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.open .modal-container {
    transform: translateY(0);
}

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

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Toast Alerts */
.toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1100;
}

.toast {
    background-color: var(--card-bg);
    border-left: 5px solid var(--primary-color);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-color);
    min-width: 300px;
    max-width: 450px;
    transform: translateX(120%);
    transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast .material-symbols-outlined {
    font-size: 22px;
    flex-shrink: 0;
}

.toast.show {
    transform: translateX(0);
}

.toast.success { border-left-color: var(--success-color); }
.toast.success .material-symbols-outlined { color: var(--success-color); }
.toast.error { border-left-color: var(--danger-color); }
.toast.error .material-symbols-outlined { color: var(--danger-color); }
.toast.warning { border-left-color: var(--warning-color); }
.toast.warning .material-symbols-outlined { color: var(--warning-color); }
.toast.info { border-left-color: var(--info-color); }
.toast.info .material-symbols-outlined { color: var(--info-color); }

.toast-message {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Login Page Styling */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-color);
    padding: 20px;
}

.auth-card {
    background-color: var(--card-bg);
    width: 100%;
    max-width: 440px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    text-align: center;
    transition: var(--transition);
}

.auth-logo {
    width: 64px;
    height: 64px;
    margin-bottom: 15px;
    object-fit: contain;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.auth-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.turnstile-wrapper {
    margin: 20px 0;
    display: flex;
    justify-content: center;
}

.auth-links {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* Branding Page Custom Color Previewer styles */
.theme-preview-box {
    margin-top: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 15px;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.preview-bar {
    height: 30px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: bold;
}

.preview-logo {
    width: 20px;
    height: 20px;
    object-fit: contain;
    margin-right: 8px;
}

/* DNS Checks Styling */
.dns-records-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 15px;
}

.dns-record-row {
    background-color: var(--bg-color);
    border-radius: var(--radius-sm);
    padding: 15px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dns-record-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 8px;
}

.dns-type {
    font-weight: 700;
    color: var(--primary-color);
    background-color: rgba(0, 86, 179, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
}

.dns-fqdn {
    font-family: monospace;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-color);
}

.dns-record-value-container {
    display: flex;
    gap: 10px;
    align-items: center;
}

.dns-value-box {
    flex-grow: 1;
    font-family: monospace;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.8rem;
    word-break: break-all;
    user-select: all;
}

.copy-icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
    border-radius: 4px;
    transition: var(--transition);
}

.copy-icon-btn:hover {
    background-color: var(--border-color);
    color: var(--primary-color);
}

.dns-check-badge-container {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
}

/* Responsiveness adjustments */
@media (max-width: 768px) {
    .app-sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        box-shadow: var(--shadow-lg);
    }
    
    .app-sidebar.open {
        left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .content-header {
        padding: 0 15px;
        gap: 10px;
    }
    
    .header-right {
        gap: 8px;
    }
    
    .page-title {
        font-size: 1.1rem;
        max-width: 120px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .domain-select-dropdown {
        font-size: 0.8rem;
        padding: 5px 8px;
        max-width: 115px;
    }

    .user-profile-badge {
        padding-left: 8px;
        border-left: none;
        gap: 0;
    }

    .user-details {
        display: none;
    }
    
    .page-body {
        padding: 15px;
    }
    
    .table-actions-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .search-input-wrapper {
        max-width: none;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }

    .modal-container {
        width: calc(100% - 30px);
        margin: 15px;
    }
}

@media (max-width: 480px) {
    .page-title {
        max-width: 85px;
    }
    .auth-card {
        padding: 25px 20px;
    }
}

/* 11. Page Transition & DB Process Loader Overlay */
.page-loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    body:not(.light-mode) .page-loader-overlay {
        background-color: rgba(18, 18, 18, 0.85);
    }
}

body.dark-mode .page-loader-overlay {
    background-color: rgba(18, 18, 18, 0.85);
}

.page-loader-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-spinner-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: loader-spin 1s linear infinite;
}

.loader-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    letter-spacing: 0.5px;
}

@keyframes loader-spin {
    to { transform: rotate(360deg); }
}