@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Elegant Dark-themed palette */
    --bg-main: #0b0f19;
    --bg-card: rgba(23, 31, 50, 0.7);
    --bg-sidebar: #0f172a;
    --border-color: rgba(51, 65, 85, 0.5);
    --bg-navbar: rgba(11, 15, 25, 0.5);
    --bg-table-th: rgba(15, 23, 42, 0.4);
    --bg-input: rgba(15, 23, 42, 0.6);
    --bg-lighter: #1e293b;
    --panel-bg: rgba(23, 31, 50, 0.7);
    --card-bg-light: rgba(15, 23, 42, 0.4);
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.15);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    --bg-hover: rgba(255, 255, 255, 0.05);
    
    --alert-success-text: #a7f3d0;
    --alert-warning-text: #fde68a;
    --alert-info-text: #bfdbfe;
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 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);
}

/* Global Toggle Switch Styles */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  margin: 0;
}
.switch input { 
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255,255,255,0.1);
  transition: .4s;
  border-radius: 24px;
  border: 1px solid var(--border-color);
}
.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-muted);
  transition: .4s;
  border-radius: 50%;
}
input:checked + .slider {
  background-color: var(--success);
  border-color: var(--success);
}
input:checked + .slider:before {
  transform: translateX(20px);
  background-color: white;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

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

button, .btn {
    font-family: var(--font-sans);
    cursor: pointer;
    border: none;
    outline: none;
    transition: var(--transition);
}

/* Layout */
.app-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    padding: 1.5rem;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Custom Scrollbars globally */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
}

::-webkit-scrollbar-thumb {
    background-color: rgba(99, 102, 241, 0.45);
    border-radius: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background-color: rgba(129, 140, 248, 0.4);
    border-radius: 8px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--primary);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.brand-name {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin: 1.5rem 0 0.5rem 0.5rem;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-item a:hover {
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.03);
}

.nav-item.active a {
    color: var(--text-inverse);
    background-color: var(--primary);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.user-profile-block {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border: 1px solid var(--primary);
}

.user-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

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

/* Main Content Area */
.main-wrapper {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    min-width: 0;
    max-width: 100%;
    overflow-x: hidden;
}

.top-navbar {
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    padding: 0 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-navbar);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 90;
}

.page-title {
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.25;
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.35rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background-color: var(--bg-hover);
}

.sidebar-close-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.35rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.sidebar-close-btn:hover {
    color: var(--text-main);
    background-color: var(--bg-hover);
}

.logout-btn {
    background-color: transparent;
    color: var(--text-muted);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.logout-btn:hover {
    color: var(--danger);
    border-color: var(--danger);
    background-color: var(--danger-bg);
}

.content-container {
    padding: 2.5rem;
    flex: 1;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    min-width: 0;
    box-sizing: border-box;
}

/* Operational Card Grids */
.sessions-grid,
.assets-grid,
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.session-card,
.asset-card,
.template-card,
.metric-card,
.card,
.panel,
.product-card,
.selectable-card,
.game-card,
.membership-package-card,
.payment-method-card,
.chart-container {
    min-width: 0 !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}

/* Universal Responsive Grid Utilities */
.responsive-grid-3col {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}
.responsive-grid-2col,
.dashboard-grid-2col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}
.responsive-split-1-2 {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
}
.responsive-split-1-2-reverse {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.5rem;
    align-items: start;
}

/* Card Compatibility Styles (Bootstrap-like drop-in) */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
    overflow: hidden;
    backdrop-filter: blur(10px);
}
.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(255, 255, 255, 0.02);
}
.card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0;
}
.card-body {
    padding: 1.5rem;
}
.list-group {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.list-group-item {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    color: var(--text-main);
}

/* Cards Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}


.metric-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.metric-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.15);
}

.metric-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.metric-icon.active {
    background-color: var(--success-bg);
    color: var(--success);
}

.metric-data {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.2;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Standard Panels & Tables */
.panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-bottom: 2.5rem;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.panel-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(5px);
}

.panel-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.panel-body {
    padding: 2rem;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    color: var(--text-inverse);
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-muted);
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.05);
}

/* Button Loading State */
.btn.is-loading, .btn-primary.is-loading, .btn-secondary.is-loading, button.is-loading, input[type="submit"].is-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn.is-loading::after, .btn-primary.is-loading::after, .btn-secondary.is-loading::after, button.is-loading::after, input[type="submit"].is-loading::after {
    content: "";
    position: absolute;
    width: 1.25rem;
    height: 1.25rem;
    top: 50%;
    left: 50%;
    margin-top: -0.625rem;
    margin-left: -0.625rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: btn-spin 0.8s linear infinite;
}

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

/* Tables and Horizontal Overflow Scrolling */
.table-scroll-wrapper {
    position: relative;
    width: 100%;
    max-width: 100%;
    display: flex;
    flex-direction: column;
}

/* Subtle right edge gradient shadow when more content exists on right */
.table-scroll-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 8px;
    width: 28px;
    background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.08));
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.25s ease;
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
    z-index: 5;
}

[data-theme="dark"] .table-scroll-wrapper::after {
    background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.45));
}

.table-scroll-wrapper.has-overflow-right::after {
    opacity: 1;
}

/* Synchronized Top Scrollbar */
.table-top-scroll {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    height: 10px;
    display: none;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) rgba(0, 0, 0, 0.05);
    background: rgba(99, 102, 241, 0.03);
    border-bottom: 1px solid var(--border-color);
}

.table-top-scroll::-webkit-scrollbar {
    height: 8px;
}

.table-top-scroll::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

[data-theme="dark"] .table-top-scroll::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.table-top-scroll::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, #6366f1, #818cf8);
    border-radius: 4px;
}

.table-top-scroll-inner {
    height: 1px;
}

/* Main Table Container & Bottom Scrollbar */
.table-responsive {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) rgba(0, 0, 0, 0.06);
    padding-bottom: 4px;
}

.table-responsive::-webkit-scrollbar {
    height: 8px;
}

.table-responsive::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.06);
    border-radius: 4px;
    margin: 0 4px;
}

[data-theme="dark"] .table-responsive::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.06);
}

.table-responsive::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, #6366f1, #818cf8);
    border-radius: 4px;
}

.table-responsive::-webkit-scrollbar-thumb:hover {
    background: #4f46e5;
}

.panel > .table-responsive > .table,
.panel > .table-scroll-wrapper > .table-responsive > .table,
.panel-body > .table-responsive > .table,
.panel-body > .table-scroll-wrapper > .table-responsive > .table {
    min-width: 540px;
}

/* Scroll Hint Badge */
.table-scroll-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.25);
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    user-select: none;
    letter-spacing: 0.02em;
    transition: opacity 0.2s ease;
}

.table-scroll-hint svg {
    width: 0.85rem;
    height: 0.85rem;
    animation: hint-bounce-x 1.6s ease-in-out infinite;
}

@keyframes hint-bounce-x {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(3px); }
}

.table-actions {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th {
    background-color: var(--bg-table-th);
    padding: 1rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-main);
}

.table td.actions-col,
.table th.actions-col,
.table td:last-child {
    white-space: nowrap;
}

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

.table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.65rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background-color: var(--success-bg);
    color: var(--success);
}

.badge-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
}

.badge-warning {
    background-color: var(--warning-bg);
    color: var(--warning);
}

.badge-info {
    background-color: var(--info-bg);
    color: var(--info);
}

.badge-solid-success {
    background-color: var(--success);
    color: #ffffff;
}

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

.badge-solid-warning {
    background-color: var(--warning);
    color: #111827; /* Dark text for contrast on yellow/orange */
}

.badge-solid-info {
    background-color: var(--info);
    color: #ffffff;
}

.badge-role {
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.checkbox-input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

/* Alert Notification Banner */
.alert-banner {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Password Toggle Wrapper */
.password-wrapper {
    position: relative;
    width: 100%;
}

.password-wrapper .form-control {
    padding-right: 2.75rem; /* space for the eye icon */
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    transition: var(--transition);
}

.password-toggle:hover {
    color: var(--primary);
}

/* ========================================================
   Responsive Breakpoints & Layout Adaptations
   - Desktop & Laptop: > 1024px (Fixed 280px Sidebar)
   - Tablet Landscape & Portrait: <= 1024px (Off-canvas Drawer)
   - Small Tablet & Large Phone: <= 768px
   - Mobile: <= 640px
   ======================================================== */

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    z-index: 95; /* below sidebar (100), above content */
    backdrop-filter: blur(4px);
    transition: var(--transition);
}

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

/* KPI Grids Base & Large Screens */
.kpi-grid, .metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 2rem;
}

/* Page Action Bar for CRUD headers (search & action buttons) */
div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"],
.page-action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] form,
.page-action-bar form,
.page-action-bar .search-form {
    display: flex;
    gap: 0.5rem;
    flex: 1;
    max-width: 650px;
}

/* Enhanced Responsive Filter Form */
.filter-bar-form {
    display: flex;
    gap: 0.5rem;
    flex: 1;
    max-width: 680px;
    align-items: center;
}

.filter-bar-form .filter-input {
    flex: 1;
    min-width: 180px;
    margin-bottom: 0 !important;
}

.filter-bar-form .filter-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-shrink: 0;
}

.filter-bar-form .filter-select {
    width: 170px;
    margin-bottom: 0 !important;
}

/* Two-column Form Layouts (Desktop Only) */
.form-grid-2col {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 1025px) {
    .form-grid-2col {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    .col-span-2 {
        grid-column: span 2;
    }
}

/* Tablet Landscape & Portrait (<= 1024px) */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: 10px 0 35px rgba(0, 0, 0, 0.5);
    }
    .sidebar.sidebar-open {
        transform: translateX(0);
    }
    .sidebar-close-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .brand {
        justify-content: space-between;
    }
    .main-wrapper {
        margin-left: 0;
        width: 100%;
    }
    .mobile-menu-btn {
        display: flex !important;
        align-items: center;
        justify-content: center;
    }
    .top-navbar {
        padding: 0 1.5rem;
    }
    .content-container {
        padding: 1.5rem;
    }
    .panel-header {
        padding: 1.25rem 1.5rem;
    }
    .panel-body {
        padding: 1.5rem;
    }
    .kpi-grid, .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    .responsive-grid-3col {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 1.25rem;
    }
    .responsive-grid-2col,
    .dashboard-grid-2col {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 1.25rem;
    }
    .responsive-split-1-2,
    .responsive-split-1-2-reverse {
        grid-template-columns: 1fr !important;
        gap: 1.25rem;
    }
    .sessions-grid,
    .assets-grid,
    .template-grid,
    div[style*="minmax(340px"],
    div[style*="minmax(350px"],
    div[style*="minmax(320px"],
    div[style*="minmax(300px"] {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)) !important;
        gap: 1.25rem !important;
    }
}

/* Small Tablet & Phablet (<= 768px) */
@media (max-width: 768px) {
    .top-navbar {
        padding: 0 1.25rem;
    }
    .content-container {
        padding: 1.25rem 1rem;
    }
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"],
    .page-action-bar {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.875rem !important;
    }
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] form,
    .page-action-bar form,
    .page-action-bar .search-form {
        max-width: 100% !important;
        width: 100% !important;
    }
    /* Action buttons (direct links or outside buttons) become full-width */
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] > a.btn-primary,
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] > a.btn-secondary,
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] > div > a.btn-primary,
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] > div > a.btn-secondary,
    div[style*="justify-content: flex-end"][style*="margin-bottom: 1.5rem"] > a.btn-primary,
    div[style*="justify-content: flex-end"][style*="margin-bottom: 1.5rem"] > a.btn-secondary,
    .page-action-bar > a.btn-primary,
    .page-action-bar > a.btn-secondary,
    .page-action-bar > div > a.btn-primary,
    .page-action-bar > div > a.btn-secondary {
        width: 100% !important;
        justify-content: center !important;
        text-align: center !important;
    }
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] > div[style*="display: flex"],
    .page-action-bar > div[style*="display: flex"] {
        width: 100% !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
    }

    /* Structured Filter Bar with .filter-controls (Invoices, Session History, etc.) */
    .filter-bar-form {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.625rem !important;
    }
    .filter-bar-form .filter-input {
        width: 100% !important;
        min-width: 0 !important;
        flex: none !important;
    }
    .filter-bar-form .filter-controls {
        display: flex !important;
        width: 100% !important;
        gap: 0.5rem !important;
    }
    .filter-bar-form .filter-controls .filter-select {
        flex: 1 1 50% !important;
        width: auto !important;
        min-width: 0 !important;
        max-width: none !important;
    }
    .filter-bar-form .filter-controls button[type="submit"] {
        flex: 1 1 50% !important;
        width: auto !important;
        justify-content: center !important;
        white-space: nowrap !important;
    }
    .filter-bar-form .filter-controls a.btn-secondary {
        flex: 0 0 auto !important;
        width: auto !important;
        padding-left: 0.85rem !important;
        padding-right: 0.85rem !important;
        justify-content: center !important;
        white-space: nowrap !important;
    }

    /* Standard single-row search forms (input + button side by side) */
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] form:not(.filter-bar-form),
    .page-action-bar form:not(.filter-bar-form) {
        display: flex !important;
        flex-direction: row !important;
        width: 100% !important;
        gap: 0.5rem !important;
    }
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] form:not(.filter-bar-form) input,
    .page-action-bar form:not(.filter-bar-form) input {
        flex: 1 1 auto !important;
        min-width: 0 !important;
        margin-bottom: 0 !important;
    }
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] form:not(.filter-bar-form) button,
    .page-action-bar form:not(.filter-bar-form) button {
        flex: 0 0 auto !important;
        width: auto !important;
        white-space: nowrap !important;
        justify-content: center !important;
    }
    div[style*="justify-content: space-between"][style*="margin-bottom: 1.5rem"] form:not(.filter-bar-form) a.btn-secondary,
    .page-action-bar form:not(.filter-bar-form) a.btn-secondary {
        flex: 0 0 auto !important;
        width: auto !important;
        white-space: nowrap !important;
        justify-content: center !important;
    }

    /* Report filter forms */
    #report-filter-form {
        grid-template-columns: 1fr !important;
        gap: 0.85rem !important;
    }
}

/* Mobile (<= 640px) */
@media (max-width: 640px) {
    .sidebar {
        width: min(300px, 86vw);
        padding: 1.25rem 1rem;
    }
    .top-navbar {
        height: 60px;
        padding: 0 0.875rem;
    }
    .page-title {
        font-size: 1.05rem;
        max-width: 44vw;
    }
    .logout-btn .logout-text {
        display: none;
    }
    .logout-btn {
        padding: 0.45rem 0.6rem;
    }
    .logout-btn .icon-svg {
        margin: 0;
    }
    .content-container {
        padding: 0.875rem;
    }
    .panel {
        border-radius: var(--radius-md);
        margin-bottom: 1.5rem;
    }
    .panel-header {
        padding: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    .panel-body {
        padding: 1rem 0.875rem;
    }
    .table th, .table td {
        padding: 0.75rem 0.875rem;
        font-size: 0.85rem;
    }
    .kpi-grid, .metrics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 0.65rem !important;
        margin-bottom: 1.25rem;
    }
    .responsive-grid-3col,
    .responsive-grid-2col,
    .dashboard-grid-2col {
        grid-template-columns: 1fr !important;
        gap: 1rem;
    }
    .metric-card {
        padding: 0.85rem 0.75rem !important;
        gap: 0.65rem !important;
        min-width: 0;
    }
    .metric-icon {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        font-size: 1.1rem !important;
    }
    .metric-value {
        font-size: 1.25rem !important;
        line-height: 1.2;
    }
    .metric-label {
        font-size: 0.72rem !important;
        line-height: 1.2;
    }

    .form-actions {
        flex-direction: column-reverse;
        align-items: stretch;
        gap: 0.75rem;
    }
    .form-actions .btn,
    .form-actions button,
    .form-actions a {
        width: 100%;
        justify-content: center;
        text-align: center;
    }
    .auth-wrapper {
        padding: 1rem;
    }
    .auth-panel {
        padding: 1.75rem 1.25rem;
    }
    .sessions-grid,
    .assets-grid,
    .template-grid,
    div[style*="grid-template-columns: repeat(auto-fill, minmax("],
    div[style*="grid-template-columns: repeat(auto-fit, minmax("],
    form[style*="grid-template-columns: repeat(auto-fill, minmax("],
    form[style*="grid-template-columns: repeat(auto-fit, minmax("] {
        grid-template-columns: 1fr !important;
        gap: 0.875rem !important;
    }
    .session-card,
    .asset-card,
    .template-card {
        padding: 1.15rem 1rem !important;
    }
}

/* Inline SVG icon styles */
.icon-svg {
    width: 1.25rem;
    height: 1.25rem;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    display: inline-block;
    vertical-align: middle;
}

.btn .icon-svg, .nav-item .icon-svg {
    margin-right: 0.5rem;
}

/* Inline form validation messages */
.form-error {
    color: var(--danger);
    font-size: 0.8rem;
    margin-top: 0.35rem;
    font-weight: 500;
    display: block;
}

/* Status Badges */
.badge-warning {
    background-color: var(--warning-bg);
    color: var(--warning);
}
.badge-info {
    background-color: var(--primary-light);
    color: var(--primary);
}


.auth-wrapper {
    width: 100%;
    flex: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 70%), var(--bg-main);
}

.auth-panel {
    width: 100%;
    max-width: 450px;
    background-color: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 10;
}

.auth-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.auth-icon {
    width: 60px;
    height: 60px;
    border-radius: 18px;
    font-size: 1.8rem;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    text-align: center;
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    text-align: center;
    margin-bottom: 2rem;
}

/* Print Dropdown Styling */
.print-dropdown {
    position: relative;
    display: inline-block;
}

.print-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 50;
    min-width: 240px;
    overflow: hidden;
    padding: 0.25rem 0;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.print-dropdown-menu.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.print-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
}

.print-dropdown-item:hover {
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.05);
}

.print-dropdown-item .icon-svg {
    width: 1.1rem;
    height: 1.1rem;
    color: var(--text-muted);
    margin: 0;
    transition: var(--transition);
}

.print-dropdown-item:hover .icon-svg {
    color: var(--primary);
    transform: scale(1.05);
}

/* ==========================================
   Theme Override Definitions
   ========================================== */

/* Light Theme Variables */
html[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    --border-color: #cbd5e1;
    --bg-navbar: rgba(255, 255, 255, 0.85);
    --bg-table-th: #f1f5f9;
    --bg-input: #ffffff;
    --bg-lighter: #f8fafc;
    --panel-bg: #ffffff;
    --card-bg-light: #f8fafc;
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-inverse: #ffffff;
    
    --bg-hover: rgba(15, 23, 42, 0.05);
    
    --alert-success-text: #065f46;
    --alert-warning-text: #92400e;
    --alert-info-text: #1e3a8a;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
}

/* Explicit Dark Theme Variables */
html[data-theme="dark"] {
    --bg-main: #0b0f19;
    --bg-card: rgba(23, 31, 50, 0.7);
    --bg-sidebar: #0f172a;
    --border-color: rgba(51, 65, 85, 0.5);
    --bg-navbar: rgba(11, 15, 25, 0.5);
    --bg-table-th: rgba(15, 23, 42, 0.4);
    --bg-input: rgba(15, 23, 42, 0.6);
    --bg-lighter: #1e293b;
    --panel-bg: rgba(23, 31, 50, 0.7);
    --card-bg-light: rgba(15, 23, 42, 0.4);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    
    --bg-hover: rgba(255, 255, 255, 0.05);
    
    --alert-success-text: #a7f3d0;
    --alert-warning-text: #fde68a;
    --alert-info-text: #bfdbfe;
}

/* Logo Brand Text Override for Light Theme */
html[data-theme="light"] .brand-name {
    background: linear-gradient(to right, #0f172a, #334155);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Theme Selector Dropdown Styles */
.theme-dropdown {
    position: relative;
    display: inline-block;
}

.theme-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background-color: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 150;
    min-width: 140px;
    overflow: hidden;
    padding: 0.25rem 0;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-dropdown-menu.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.theme-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
}

.theme-dropdown-item:hover {
    color: var(--text-main);
    background-color: var(--bg-hover);
}

.theme-dropdown-item.active {
    color: var(--primary);
    background-color: var(--primary-light);
}

.theme-dropdown-item .icon-svg {
    width: 1.1rem;
    height: 1.1rem;
    margin: 0;
    transition: var(--transition);
}

.theme-dropdown-item.active .icon-svg {
    color: var(--primary);
}

/* Ensure background transitions smoothly when toggling themes */
body, aside, header, main, div, table, tr, td, th, form, input, select, textarea, .panel, .metric-card {
    transition: background-color 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                border-color 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                color 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Modern Pagination Component (Dark & Light Theme)
   ========================================================================== */

.custom-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    flex-wrap: wrap;
    gap: 1rem;
    box-sizing: border-box;
    padding: 0.25rem 0;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    user-select: none;
}

.pagination-highlight {
    font-weight: 600;
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.06);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

[data-theme="light"] .pagination-highlight {
    background: rgba(0, 0, 0, 0.04);
}

.pagination-controls {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.pagination-pages {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.pagination-btn,
.pagination-page {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    text-decoration: none;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    box-sizing: border-box;
}

.pagination-page {
    min-width: 36px;
    padding: 0 0.5rem;
}

.pagination-btn:hover:not(.disabled),
.pagination-page:hover:not(.active):not(.dots) {
    background-color: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.pagination-page.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    border-color: var(--primary);
    color: #ffffff !important;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
    cursor: default;
    transform: none;
}

.pagination-btn.disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
    border-color: var(--border-color);
    background-color: rgba(255, 255, 255, 0.01);
}

.pagination-page.dots {
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: default;
    min-width: 24px;
    box-shadow: none;
    padding: 0 0.25rem;
}

.pagination-icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

.pagination-btn .pagination-icon {
    margin: 0;
}

.pagination-btn-label {
    font-size: 0.85rem;
    margin: 0 0.2rem;
}

/* Fallback for Bootstrap Pagination (ul.pagination) */
ul.pagination {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

ul.pagination .page-item {
    display: inline-block;
}

ul.pagination .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 0.65rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
}

ul.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    border-color: var(--primary);
    color: #ffffff !important;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

ul.pagination .page-item.disabled .page-link {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

ul.pagination .page-link:hover:not(.disabled) {
    background-color: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}

/* Fallback for native nav[role="navigation"] */
nav[role="navigation"] {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .custom-pagination {
        flex-direction: column;
        align-items: center;
        gap: 0.85rem;
    }
    
    .pagination-btn-label {
        display: none;
    }
    
    .pagination-btn {
        padding: 0 0.5rem;
    }
}