/* /modules/trainings/css/trainings.css */

#trainings-main-container {
    /* Main container styles */
}

/* --- Settings Page Styles --- */
#settingsMenu .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* --- Apple Glass Language Selector & Dropdowns --- */
.language-pill-btn {
    background: rgba(150, 150, 150, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--bs-body-color);
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.language-pill-btn:hover,
.language-pill-btn[aria-expanded="true"] {
    background: rgba(150, 150, 150, 0.2);
}

.apple-glass-menu {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    min-width: 160px;
    margin-top: 8px !important;
    transform-origin: top right;
    animation: appleDropdownFadeIn 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

[data-bs-theme="dark"] .apple-glass-menu {
    background: rgba(40, 40, 40, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.apple-glass-menu.dropdown-menu {
    padding: 6px !important;
}

.apple-glass-menu li:not(:last-child),
.apple-glass-menu .dropdown-item:not(:last-child) {
    margin-bottom: 4px;
}

.apple-glass-menu .dropdown-item {
    font-size: 0.9rem;
    transition: background 0.2s;
    color: var(--bs-body-color);
}

.apple-glass-menu .dropdown-item:hover,
.apple-glass-menu .dropdown-item:focus {
    background: rgba(0, 0, 0, 0.05);
}

[data-bs-theme="dark"] .apple-glass-menu .dropdown-item:hover,
[data-bs-theme="dark"] .apple-glass-menu .dropdown-item:focus {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.active-lang {
    background: rgba(var(--bs-primary-rgb), 0.1) !important;
    color: var(--bs-primary) !important;
    font-weight: 500;
}

@keyframes appleDropdownFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-5px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* --- Course View Page Styles --- */

/* Format Quill output properly */
.content-formatted {
    font-size: 1.05rem;
    line-height: 1.7;
}

.content-formatted img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.content-formatted h1,
.content-formatted h2,
.content-formatted h3 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 700;
}

.content-formatted ul,
.content-formatted ol {
    margin-bottom: 1.5em;
    padding-left: 2em;
}

/* Scroll Down Indicator Animation */
@keyframes bounceFade {

    0%,
    100% {
        transform: translateY(0);
        opacity: 0.5;
    }

    50% {
        transform: translateY(8px);
        opacity: 1;
    }
}

.scroll-down-indicator {
    animation: bounceFade 2s infinite ease-in-out;
    color: var(--apple-accent-color, #0d6efd);
    text-shadow: 0 0 15px rgba(255, 255, 255, 1), 0 0 20px rgba(255, 255, 255, 0.8), 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-bs-theme="dark"] .scroll-down-indicator {
    color: #fff;
    text-shadow: 0 0 15px rgba(0, 0, 0, 1), 0 0 20px rgba(0, 0, 0, 0.8), 0 2px 4px rgba(0, 0, 0, 0.5);
}

.scroll-down-indicator i {
    margin-top: -6px;
}

.list-group-item.active {
    background-color: var(--apple-accent-color);
    border-color: var(--apple-accent-color);
    color: white !important;
}

.list-group-item.active .text-muted {
    color: rgba(255, 255, 255, 0.8) !important;
}

.list-group-item.active .text-primary {
    color: white !important;
}

.course-expand-header {
    padding: 0.25rem 0.5rem;
    margin: -0.25rem -0.5rem;
    border-radius: 1rem;
    transition: opacity 0.3s ease;
}

.course-expand-header:hover {
    opacity: 0.8;
}

.course-expand-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background-color: rgba(13, 110, 253, 0.1);
    color: var(--apple-accent-color, #0d6efd);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.course-expand-header:hover .course-expand-icon {
    transform: scale(1.1) rotate(-5deg);
}

.course-expand-chevron {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(128, 128, 128, 0.1);
    color: inherit;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.26, 1.55);
}

.course-expand-header[aria-expanded="true"] .course-expand-chevron {
    transform: rotate(180deg);
    background-color: var(--apple-accent-color, #0d6efd);
    color: white;
}

.lesson-card {
    border-radius: 1rem;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.lesson-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background-color: var(--apple-accent-color, #0d6efd);
    border-radius: 4px;
    transform: scaleY(0);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lesson-card:hover {
    transform: translateX(6px);
}

.lesson-card:hover::before {
    transform: scaleY(0.5);
    opacity: 1;
}

.lesson-number {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background-color: rgba(128, 128, 128, 0.08);
    color: var(--bs-body-color);
    transition: all 0.3s ease;
}

.lesson-card:hover .lesson-number {
    background-color: rgba(13, 110, 253, 0.1);
    color: var(--apple-accent-color, #0d6efd);
}

.lesson-number.bg-success,
.lesson-card:hover .lesson-number.bg-success {
    background-color: var(--bs-success, #198754) !important;
    color: #fff !important;
}

/* --- Course Section Completion Button & Micro-animations --- */
.btn-toggle-complete {
    min-width: 140px;
    height: 38px;
    font-weight: 500;
    font-size: 0.9rem;
    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),
        box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    user-select: none;
}

.btn-toggle-complete.is-done {
    background-color: var(--bs-success, #198754) !important;
    border-color: var(--bs-success, #198754) !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(25, 135, 84, 0.25);
}

.complete-icon-animate {
    display: inline-block;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-size: 1.05rem;
}

.btn-toggle-complete:active .complete-icon-animate {
    transform: scale(0.8);
}

.btn-toggle-complete.is-done .complete-icon-animate {
    animation: completeIconPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes completeIconPop {
    0% {
        transform: scale(0.5);
    }

    65% {
        transform: scale(1.3);
    }

    100% {
        transform: scale(1);
    }
}

.lesson-title {
    font-size: 1.02rem;
    transition: color 0.3s ease;
}

.lesson-card:hover .lesson-title {
    color: var(--apple-accent-color, #0d6efd) !important;
}

.lesson-snippet {
    font-size: 0.835rem;
    line-height: 1.45;
    color: var(--bs-secondary-color, #6c757d);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    letter-spacing: -0.005em;
    transition: color 0.2s ease;
}

.lesson-card:hover .lesson-snippet {
    color: var(--bs-body-color);
}

.lesson-icon {
    color: rgba(128, 128, 128, 0.4);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lesson-card:hover .lesson-icon {
    color: var(--apple-accent-color, #0d6efd);
    transform: scale(1.15);
}

.btn-theme-start {
    background-color: var(--apple-accent-color, #0d6efd) !important;
    border-color: var(--apple-accent-color, #0d6efd) !important;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-theme-start:hover {
    background-color: var(--accent-hover, #0b5ed7) !important;
    border-color: var(--accent-hover, #0b5ed7) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--button-glow, rgba(13, 110, 253, 0.3)) !important;
}

.theme-text-color {
    color: var(--apple-accent-color, #0d6efd) !important;
}

.course-sidebar-glass {
    background: rgba(var(--bs-body-bg-rgb, 255, 255, 255), 0.75) !important;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-right: 1px solid var(--bs-border-color-translucent) !important;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.05);
    transition: transform 0.4s cubic-bezier(0.32, 1, 0.23, 1) !important;
}

.course-sidebar-glass .offcanvas-body::-webkit-scrollbar {
    width: 6px;
}

.course-sidebar-glass .offcanvas-body::-webkit-scrollbar-track {
    background: transparent;
}

.course-sidebar-glass .offcanvas-body::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.15);
    border-radius: 10px;
}

[data-bs-theme="dark"] .course-sidebar-glass .offcanvas-body::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.15);
}

.sidebar-lesson-card.active {
    background-color: var(--bs-secondary-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.sidebar-lesson-card.active::before {
    transform: scaleY(0.7);
    opacity: 1;
}

.sidebar-lesson-card.active .lesson-title {
    color: var(--apple-accent-color, #0d6efd) !important;
}

.sidebar-lesson-card.active .lesson-number {
    background-color: var(--apple-accent-color, #0d6efd);
    color: white;
}

/* Glassmorphism Dropdown */
.glass-dropdown-btn {
    background-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--bs-body-color);
    transition: all 0.3s ease;
    padding: 0.35rem 1rem;
    font-weight: 500;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}

.glass-dropdown-btn:hover,
.glass-dropdown-btn:focus {
    background-color: rgba(255, 255, 255, 0.7);
    border-color: rgba(0, 0, 0, 0.12);
    color: var(--bs-body-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

[data-bs-theme="dark"] .glass-dropdown-btn {
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .glass-dropdown-btn:hover,
[data-bs-theme="dark"] .glass-dropdown-btn:focus {
    background-color: rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.15);
}

.glass-dropdown-menu {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    border-radius: 12px;
    padding: 0.5rem;
    min-width: 220px;
    max-width: 320px;
    max-height: 350px;
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
    animation: dropdownFadeIn 0.2s ease-out forwards;
}

.glass-dropdown-menu::-webkit-scrollbar {
    width: 6px;
}

.glass-dropdown-menu::-webkit-scrollbar-track {
    background: transparent;
}

.glass-dropdown-menu::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 10px;
}

[data-bs-theme="dark"] .glass-dropdown-menu::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

[data-bs-theme="dark"] .glass-dropdown-menu {
    background-color: rgba(30, 30, 30, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3) !important;
}

.glass-dropdown-menu .dropdown-item {
    border-radius: 8px;
    transition: all 0.2s ease;
    padding: 0.5rem 1rem;
    color: var(--bs-body-color);
    font-weight: 500;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
}

.glass-dropdown-menu .dropdown-item:last-child {
    margin-bottom: 0;
}

.glass-dropdown-menu .dropdown-item:hover,
.glass-dropdown-menu .dropdown-item:focus {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--bs-body-color);
    transform: translateX(4px);
}

[data-bs-theme="dark"] .glass-dropdown-menu .dropdown-item:hover,
[data-bs-theme="dark"] .glass-dropdown-menu .dropdown-item:focus {
    background-color: rgba(255, 255, 255, 0.08);
}

.glass-dropdown-menu .dropdown-item.active {
    background-color: var(--apple-accent-color, #0d6efd);
    color: #fff;
}

.glass-dropdown-menu .dropdown-item.active i {
    opacity: 1 !important;
}

/* Scroll Fade for Description */
.scroll-fade {
    max-height: 400px;
    overflow-y: auto;
    -webkit-mask-image: linear-gradient(to bottom, transparent, black 15px, black calc(100% - 15px), transparent);
    mask-image: linear-gradient(to bottom, transparent, black 15px, black calc(100% - 15px), transparent);
    padding-top: 15px;
    padding-bottom: 15px;
    padding-right: 10px;
}

.scroll-fade::-webkit-scrollbar {
    width: 6px;
}

.scroll-fade::-webkit-scrollbar-track {
    background: transparent;
}

.scroll-fade::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 10px;
}

[data-bs-theme="dark"] .scroll-fade::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
}

/* Quill Editor Customization */
.ql-toolbar.ql-snow {
    border: none !important;
    border-bottom: 1px solid rgba(128, 128, 128, 0.15) !important;
    background: transparent;
    position: relative;
    z-index: 2;
}

.ql-container.ql-snow {
    border: none !important;
    display: flex !important;
    flex-direction: column !important;
    flex-grow: 1 !important;
    min-height: 250px;
    font-size: 0.95rem;
    font-family: inherit;
    position: relative;
    z-index: 1;
    pointer-events: auto !important;
}

.ql-editor {
    flex-grow: 1 !important;
    min-height: 250px !important;
    cursor: text !important;
    padding: 1rem !important;
    pointer-events: auto !important;
    user-select: text !important;
    -webkit-user-select: text !important;
}

.ql-editor.ql-blank::before {
    font-style: normal !important;
    color: var(--bs-secondary-color, #6c757d) !important;
    opacity: 0.7 !important;
    left: 1rem !important;
    right: 1rem !important;
    pointer-events: none !important;
}

/* Modern Material Item */
.material-card {
    background: var(--bs-body-bg);
    border: 1px solid rgba(var(--bs-primary-rgb), 0.1);
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.material-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--bs-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.material-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(var(--bs-primary-rgb), 0.15);
    border-color: rgba(var(--bs-primary-rgb), 0.3);
}

.material-card:hover::before {
    opacity: 1;
}

[data-bs-theme="dark"] .material-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

[data-bs-theme="dark"] .material-card:hover {
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.material-action-btn {
    width: 34px;
    height: 34px;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.2s;
}

.material-action-btn:hover {
    transform: scale(1.15);
}

/* --- Quiz Module Styles --- */

/* Fullscreen Quiz Modal Background */
#quizModal .modal-content {
    background-color: var(--bs-body-bg) !important;
}

/* Quiz Option Card Glassmorphism */
.quiz-option-card {
    transition: all 0.2s ease-in-out;
}

.quiz-option-card:hover {
    background-color: rgba(var(--bs-primary-rgb), 0.05) !important;
    border-color: rgba(var(--bs-primary-rgb), 0.3) !important;
}

.quiz-option-card:has(:checked) {
    background-color: rgba(var(--bs-primary-rgb), 0.08) !important;
    border-color: rgba(var(--bs-primary-rgb), 0.6) !important;
    box-shadow: 0 0 12px rgba(var(--bs-primary-rgb), 0.15);
}

/* Floating Overlay Expandable Cards */
.overlay-expandable-card {
    position: relative !important;
    overflow: visible !important;
    z-index: 100;
}

.overlay-expandable-card:has(.overlay-card-content.show),
.overlay-expandable-card.is-expanded {
    z-index: 1050 !important;
    background: #ffffff !important;
}

[data-bs-theme="dark"] .overlay-expandable-card:has(.overlay-card-content.show),
[data-bs-theme="dark"] .overlay-expandable-card.is-expanded {
    background: #1e1e26 !important;
}

[data-bs-theme="light"] .overlay-expandable-card:has(.overlay-card-content.show),
[data-bs-theme="light"] .overlay-expandable-card.is-expanded {
    background: #ffffff !important;
}

.overlay-expandable-card .card-body {
    position: relative !important;
    overflow: visible !important;
}

.overlay-expandable-card .overlay-card-content {
    display: block !important;
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1050 !important;
    margin-top: 0.5rem !important;
    padding: 0 1.25rem;
    border-radius: 1rem !important;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.3) !important;
    overflow: hidden !important;
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    color: #212529 !important;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: max-height 0.38s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), padding 0.38s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.38s !important;
}

.overlay-expandable-card .overlay-card-content.show {
    display: flex !important;
    flex-direction: column !important;
    height: var(--overlay-target-height, 450px) !important;
    max-height: var(--overlay-target-height, 450px) !important;
    padding: 1.25rem !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    overflow: hidden !important;
}

.overlay-expandable-card .overlay-card-content #viewerDescription,
.overlay-expandable-card .overlay-card-content #viewerMaterials {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    height: 100% !important;
    overflow-y: auto !important;
}

.overlay-expandable-card .overlay-card-content #viewerDescription::-webkit-scrollbar,
.overlay-expandable-card .overlay-card-content #viewerMaterials::-webkit-scrollbar,
.overlay-expandable-card .overlay-card-content::-webkit-scrollbar {
    width: 6px;
}

.overlay-expandable-card .overlay-card-content #viewerDescription::-webkit-scrollbar-track,
.overlay-expandable-card .overlay-card-content #viewerMaterials::-webkit-scrollbar-track,
.overlay-expandable-card .overlay-card-content::-webkit-scrollbar-track {
    background: transparent;
}

.overlay-expandable-card .overlay-card-content #viewerDescription::-webkit-scrollbar-thumb,
.overlay-expandable-card .overlay-card-content #viewerMaterials::-webkit-scrollbar-thumb,
.overlay-expandable-card .overlay-card-content::-webkit-scrollbar-thumb {
    background: rgba(128, 128, 128, 0.3);
    border-radius: 3px;
}

.overlay-expandable-card .overlay-card-content #viewerDescription::-webkit-scrollbar-thumb:hover,
.overlay-expandable-card .overlay-card-content #viewerMaterials::-webkit-scrollbar-thumb:hover,
.overlay-expandable-card .overlay-card-content::-webkit-scrollbar-thumb:hover {
    background: rgba(128, 128, 128, 0.5);
}

[data-bs-theme="dark"] .overlay-expandable-card .overlay-card-content {
    background: #1e1e26 !important;
    border: 1px solid rgba(255, 255, 255, 0.18) !important;
    color: #f8f9fa !important;
}

[data-bs-theme="light"] .overlay-expandable-card .overlay-card-content {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    color: #212529 !important;
}

/* --- Trainings Generic Nav Tabs --- */
.nav-tabs {
    border-bottom: 2px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    gap: 0.5rem;
}

.nav-tabs .nav-item {
    margin-bottom: -2px;
}

.nav-tabs .nav-link {
    background: transparent !important;
    border: none !important;
    border-bottom: 2px solid transparent !important;
    color: var(--apple-secondary-text, var(--bs-secondary-color)) !important;
    font-weight: 500;
    padding: 0.6rem 0.85rem;
    border-radius: 0 !important;
    transform: none !important;
    box-shadow: none !important;
    transition: color 0.2s ease, border-color 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-tabs .nav-link:hover {
    background: transparent !important;
    color: var(--apple-accent-color, #0d6efd) !important;
    border-bottom-color: rgba(var(--apple-accent-color-rgb, var(--bs-primary-rgb)), 0.35) !important;
}

.nav-tabs .nav-link.active {
    background: transparent !important;
    color: var(--apple-accent-color, #0d6efd) !important;
    border-bottom-color: var(--apple-accent-color, #0d6efd) !important;
    font-weight: 600;
    box-shadow: none !important;
}

.nav-tabs .nav-link:focus,
.nav-tabs .nav-link:focus-visible {
    outline: none !important;
    box-shadow: none !important;
}

/* --- Course Edit Page: Apple Segmented Pill Tabs --- */
#trainings-course-edit-container>.card-header {
    background: transparent !important;
    border-bottom: none !important;
}

#courseEditTabs {
    display: inline-flex !important;
    align-items: center;
    gap: 4px !important;
    padding: 5px !important;
    border: 1px solid rgba(128, 128, 128, 0.15) !important;
    border-radius: 12px !important;
    background: rgba(0, 0, 0, 0.04) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04) !important;
}

[data-bs-theme="dark"] #courseEditTabs {
    background: rgba(0, 0, 0, 0.28) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.25) !important;
}

#courseEditTabs .nav-item {
    margin: 0 !important;
    padding: 0 !important;
}

#courseEditTabs .nav-link {
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    padding: 0.55rem 1.15rem !important;
    border: none !important;
    border-radius: 9px !important;
    font-size: 0.92rem !important;
    font-weight: 500 !important;
    color: var(--apple-secondary-text, var(--bs-secondary-color)) !important;
    background: transparent !important;
    transition: all 0.22s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
    cursor: pointer !important;
    user-select: none !important;
    outline: none !important;
    box-shadow: none !important;
}

#courseEditTabs .nav-link i {
    font-size: 1rem;
    transition: transform 0.2s ease, color 0.2s ease;
    opacity: 0.8;
}

#courseEditTabs .nav-link:hover {
    color: var(--apple-text-color, var(--bs-body-color)) !important;
    background: rgba(128, 128, 128, 0.08) !important;
}

#courseEditTabs .nav-link:hover i {
    opacity: 1;
    transform: scale(1.08);
}

#courseEditTabs .nav-link.active {
    background: #ffffff !important;
    color: var(--apple-accent-color, var(--bs-primary)) !important;
    font-weight: 600 !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06) !important;
}

#courseEditTabs .nav-link.active i {
    color: var(--apple-accent-color, var(--bs-primary)) !important;
    opacity: 1;
}

[data-bs-theme="dark"] #courseEditTabs .nav-link.active {
    background: rgba(255, 255, 255, 0.12) !important;
    color: #ffffff !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1) inset !important;
}

[data-bs-theme="dark"] #courseEditTabs .nav-link.active i {
    color: var(--apple-accent-color, #8f8dff) !important;
}

#courseEditTabs .nav-link:focus,
#courseEditTabs .nav-link:focus-visible {
    outline: none !important;
    box-shadow: none !important;
}

/* --- Course Permissions Tab Styling --- */
.permission-mode-card {
    border: 2px solid transparent !important;
    transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
    user-select: none;
}

.permission-mode-card:hover {
    transform: translateY(-2px);
    border-color: rgba(var(--bs-primary-rgb), 0.3) !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08) !important;
}

.permission-mode-card.active-mode {
    border-color: var(--apple-accent-color, var(--bs-primary)) !important;
    background: rgba(var(--bs-primary-rgb), 0.04) !important;
    box-shadow: 0 0 16px rgba(var(--bs-primary-rgb), 0.18) !important;
}

[data-bs-theme="dark"] .permission-mode-card.active-mode {
    background: rgba(var(--bs-primary-rgb), 0.12) !important;
    border-color: var(--apple-accent-color, #8f8dff) !important;
    box-shadow: 0 0 18px rgba(143, 141, 255, 0.25) !important;
}

.perm-rules-box {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04) !important;
}

[data-bs-theme="dark"] .perm-rules-box {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25) !important;
}

/* --- Basic Info & Form Input Styling --- */
.course-form-card {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03) !important;
}

[data-bs-theme="dark"] .course-form-card {
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2) !important;
}

#basic-info .form-control,
#basic-info .form-select,
#permissions .form-control,
#permissions .form-select {
    background-color: rgba(243, 245, 249, 0.85) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    border-radius: 10px !important;
    padding: 0.55rem 0.85rem !important;
    min-height: 42px !important;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
    font-size: 0.92rem !important;
}

[data-bs-theme="dark"] #basic-info .form-control,
[data-bs-theme="dark"] #basic-info .form-select,
[data-bs-theme="dark"] #permissions .form-control,
[data-bs-theme="dark"] #permissions .form-select {
    background-color: rgba(30, 34, 43, 0.7) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    color: #f1f5f9 !important;
}

#basic-info .form-control:focus,
#basic-info .form-select:focus,
#permissions .form-control:focus,
#permissions .form-select:focus {
    background-color: #ffffff !important;
    border-color: var(--apple-accent-color, var(--bs-primary)) !important;
    box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.15) !important;
}

[data-bs-theme="dark"] #basic-info .form-control:focus,
[data-bs-theme="dark"] #basic-info .form-select:focus,
[data-bs-theme="dark"] #permissions .form-control:focus,
[data-bs-theme="dark"] #permissions .form-select:focus {
    background-color: rgba(35, 40, 52, 0.95) !important;
    border-color: var(--apple-accent-color, #8f8dff) !important;
    box-shadow: 0 0 0 3px rgba(143, 141, 255, 0.25) !important;
}

/* Tagify Container Styling */
#basic-info .tagify,
#permissions .tagify {
    background-color: rgba(243, 245, 249, 0.85) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    border-radius: 10px !important;
    min-height: 42px !important;
    padding: 0.25rem 0.5rem !important;
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
}

[data-bs-theme="dark"] #basic-info .tagify,
[data-bs-theme="dark"] #permissions .tagify {
    background-color: rgba(30, 34, 43, 0.7) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
}

#basic-info .tagify.tagify--focus,
#permissions .tagify.tagify--focus {
    background-color: #ffffff !important;
    border-color: var(--apple-accent-color, var(--bs-primary)) !important;
    box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.15) !important;
}

[data-bs-theme="dark"] #basic-info .tagify.tagify--focus,
[data-bs-theme="dark"] #permissions .tagify.tagify--focus {
    background-color: rgba(35, 40, 52, 0.95) !important;
    border-color: var(--apple-accent-color, #8f8dff) !important;
    box-shadow: 0 0 0 3px rgba(143, 141, 255, 0.25) !important;
}

/* Tagify Multi-Select Tags */
#basic-info .tagify:not(.tagify--select) .tagify__tag,
#permissions .tagify:not(.tagify--select) .tagify__tag {
    background: rgba(var(--bs-primary-rgb), 0.09) !important;
    border: 1px solid rgba(var(--bs-primary-rgb), 0.22) !important;
    border-radius: 6px !important;
    color: var(--bs-body-color) !important;
    margin: 2px 4px 2px 0 !important;
    padding: 0 !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02) !important;
    line-height: normal !important;
}

#basic-info .tagify:not(.tagify--select) .tagify__tag>div,
#permissions .tagify:not(.tagify--select) .tagify__tag>div {
    border-radius: 5px !important;
    padding: 4px 8px !important;
    font-size: 0.84rem !important;
    font-weight: 500 !important;
    color: var(--bs-body-color) !important;
}

#basic-info .tagify:not(.tagify--select) .tagify__tag .tagify__tag__removeBtn,
#permissions .tagify:not(.tagify--select) .tagify__tag .tagify__tag__removeBtn {
    margin-right: 5px !important;
    margin-left: 2px !important;
    width: 14px !important;
    height: 14px !important;
    opacity: 0.55 !important;
    color: var(--bs-body-color) !important;
}

#basic-info .tagify:not(.tagify--select) .tagify__tag .tagify__tag__removeBtn:hover,
#permissions .tagify:not(.tagify--select) .tagify__tag .tagify__tag__removeBtn:hover {
    opacity: 1 !important;
    color: #ef4444 !important;
    background: transparent !important;
}

[data-bs-theme="dark"] #basic-info .tagify:not(.tagify--select) .tagify__tag,
[data-bs-theme="dark"] #permissions .tagify:not(.tagify--select) .tagify__tag {
    background: rgba(var(--bs-primary-rgb), 0.22) !important;
    border: 1px solid rgba(var(--bs-primary-rgb), 0.38) !important;
    color: #ffffff !important;
}

[data-bs-theme="dark"] #basic-info .tagify:not(.tagify--select) .tagify__tag>div,
[data-bs-theme="dark"] #permissions .tagify:not(.tagify--select) .tagify__tag>div {
    color: #ffffff !important;
}

/* Tagify Select Mode inside tagify-styled-wrapper (Course, Status, Video Type dropdowns) */
.tagify-styled-wrapper .tagify.tagify--select,
#basic-info .tagify.tagify--select,
#sectionModal .tagify-styled-wrapper .tagify.tagify--select {
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    min-height: auto !important;
    padding: 0 !important;
    cursor: pointer !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
}

.tagify-styled-wrapper .tagify.tagify--select .tagify__tag,
#basic-info .tagify.tagify--select .tagify__tag,
#sectionModal .tagify-styled-wrapper .tagify.tagify--select .tagify__tag {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    flex: 1 1 100% !important;
    display: flex !important;
    align-items: center !important;
}

.tagify-styled-wrapper .tagify.tagify--select .tagify__tag>div,
#basic-info .tagify.tagify--select .tagify__tag>div,
#sectionModal .tagify-styled-wrapper .tagify.tagify--select .tagify__tag>div {
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    font-size: 0.92rem !important;
    font-weight: normal !important;
    color: var(--apple-text-color, var(--bs-body-color)) !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    display: block !important;
}

.tagify-styled-wrapper .tagify.tagify--select .tagify__tag-text,
#basic-info .tagify.tagify--select .tagify__tag-text,
#sectionModal .tagify-styled-wrapper .tagify.tagify--select .tagify__tag-text {
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    width: 100% !important;
    max-width: 100% !important;
    display: block !important;
}

.tagify-styled-wrapper .tagify.tagify--select .tagify__tag .tagify__tag__removeBtn,
#basic-info .tagify.tagify--select .tagify__tag .tagify__tag__removeBtn,
#sectionModal .tagify-styled-wrapper .tagify.tagify--select .tagify__tag .tagify__tag__removeBtn {
    display: none !important;
}

[data-bs-theme="dark"] .tagify-styled-wrapper .tagify.tagify--select .tagify__tag>div,
[data-bs-theme="dark"] #sectionModal .tagify-styled-wrapper .tagify.tagify--select .tagify__tag>div {
    color: #f1f5f9 !important;
}

.tagify-styled-wrapper .tagify__input {
    width: 100% !important;
    min-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
}

#basic-info .ql-toolbar.ql-snow {
    background: rgba(243, 245, 249, 0.95) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    border-top-left-radius: 10px !important;
    border-top-right-radius: 10px !important;
    border-bottom: 0 !important;
}

[data-bs-theme="dark"] #basic-info .ql-toolbar.ql-snow {
    background: rgba(30, 34, 43, 0.85) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-bottom: 0 !important;
}

#basic-info .ql-container.ql-snow {
    background: rgba(243, 245, 249, 0.5) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    border-bottom-left-radius: 10px !important;
    border-bottom-right-radius: 10px !important;
    font-size: 0.95rem !important;
}

[data-bs-theme="dark"] #basic-info .ql-container.ql-snow {
    background: rgba(30, 34, 43, 0.5) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
}

/* --- Language Versions Sidebar List --- */
.lang-version-item {
    background: rgba(243, 245, 249, 0.6) !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
    cursor: pointer;
}

.lang-version-item:hover {
    background: rgba(var(--bs-primary-rgb), 0.08) !important;
    border-color: rgba(var(--bs-primary-rgb), 0.25) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04) !important;
}

.active-lang-card {
    background: rgba(var(--bs-primary-rgb), 0.08) !important;
    border: 1px solid rgba(var(--bs-primary-rgb), 0.3) !important;
    box-shadow: 0 0 12px rgba(var(--bs-primary-rgb), 0.08) !important;
}

[data-bs-theme="dark"] .lang-version-item {
    background: rgba(30, 34, 43, 0.5) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
}

[data-bs-theme="dark"] .lang-version-item:hover {
    background: rgba(var(--bs-primary-rgb), 0.18) !important;
    border-color: rgba(var(--bs-primary-rgb), 0.45) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2) !important;
}

[data-bs-theme="dark"] .active-lang-card {
    background: rgba(var(--bs-primary-rgb), 0.15) !important;
    border: 1px solid rgba(var(--bs-primary-rgb), 0.45) !important;
}

/* --- Modal Section Tabs: High-End Apple Segmented Control --- */
#sectionTabs {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    width: 100% !important;
    gap: 6px !important;
    padding: 6px !important;
    margin: 0 0 1.5rem 0 !important;
    list-style: none !important;
    border-radius: 14px !important;
    background: rgba(0, 0, 0, 0.05) !important;
    border: 1px solid rgba(128, 128, 128, 0.12) !important;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04) !important;
    position: relative !important;
    box-sizing: border-box !important;
    min-height: 48px !important;
}

[data-bs-theme="dark"] #sectionTabs {
    background: rgba(0, 0, 0, 0.28) !important;
    border-color: rgba(255, 255, 255, 0.06) !important;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.25) !important;
}

#sectionTabs .nav-item {
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
    width: 100% !important;
    min-width: 0 !important;
}

#sectionTabs .nav-link {
    width: 100% !important;
    min-height: 38px !important;
    justify-content: center !important;
    text-align: center !important;
    background: transparent !important;
    border: 1px solid transparent !important;
    border-radius: 9px !important;
    color: var(--apple-text-color, #4a5568) !important;
    font-size: 0.88rem !important;
    font-weight: 500 !important;
    padding: 0.65rem 0.6rem !important;
    margin: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.45rem !important;
    box-shadow: none !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    cursor: pointer !important;
    position: relative !important;
    opacity: 0.85;
    white-space: nowrap !important;
}

#sectionTabs .nav-link i {
    font-size: 1rem !important;
    color: var(--apple-secondary-text, #718096) !important;
    transition: all 0.2s ease !important;
    flex-shrink: 0;
}

#sectionTabs .nav-link:hover {
    background: rgba(255, 255, 255, 0.6) !important;
    color: var(--apple-text-color, #1a202c) !important;
    border-color: rgba(128, 128, 128, 0.12) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05) !important;
    opacity: 1 !important;
    transform: none !important;
}

[data-bs-theme="dark"] #sectionTabs .nav-link {
    color: rgba(255, 255, 255, 0.75) !important;
}

[data-bs-theme="dark"] #sectionTabs .nav-link i {
    color: rgba(255, 255, 255, 0.6) !important;
}

[data-bs-theme="dark"] #sectionTabs .nav-link:hover {
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    color: #ffffff !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3) !important;
    opacity: 1 !important;
}

#sectionTabs .nav-link.active {
    background: var(--apple-accent-color, #0d6efd) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 2px 8px var(--button-glow, rgba(var(--bs-primary-rgb), 0.35)), 0 1px 2px rgba(0, 0, 0, 0.08) !important;
    opacity: 1 !important;
    transform: none !important;
}

#sectionTabs .nav-link.active i {
    color: #ffffff !important;
}

#sectionTabs .nav-link:focus,
#sectionTabs .nav-link:focus-visible {
    outline: none !important;
    box-shadow: none !important;
}

/* --- Storage Video Explorer Option A Styling --- */
.storage-explorer-tree {
    background: rgba(var(--bs-body-bg-rgb), 0.35);
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.storage-folder-card {
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.12));
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

[data-bs-theme="dark"] .storage-folder-card {
    background: rgba(0, 0, 0, 0.18);
    border-color: rgba(255, 255, 255, 0.08);
}

.storage-folder-header {
    background: rgba(128, 128, 128, 0.06);
    user-select: none;
    transition: background 0.2s ease;
    border-bottom: 1px solid transparent;
}

.storage-folder-header:hover {
    background: rgba(128, 128, 128, 0.12);
}

.storage-folder-card:not(.collapsed) .storage-folder-header {
    border-bottom-color: rgba(128, 128, 128, 0.1);
}

.storage-folder-header .chevron-icon {
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.storage-folder-card.collapsed .chevron-icon {
    transform: rotate(-90deg);
}

.storage-folder-card.collapsed .storage-folder-items {
    display: none !important;
}

.storage-video-item {
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
}

.storage-video-item:hover {
    background: rgba(var(--apple-accent-color-rgb, var(--bs-primary-rgb)), 0.06);
    border-color: rgba(var(--apple-accent-color-rgb, var(--bs-primary-rgb)), 0.2);
    transform: translateX(2px);
}

.storage-video-item.active {
    background: rgba(var(--apple-accent-color-rgb, var(--bs-primary-rgb)), 0.12) !important;
    border-color: var(--apple-accent-color, #0d6efd) !important;
    box-shadow: 0 0 10px var(--button-glow, rgba(var(--bs-primary-rgb), 0.15));
}

.selection-check-circle {
    width: 22px;
    height: 22px;
    border: 1.5px solid var(--apple-secondary-text, #888);
    border-radius: 50%;
    transition: all 0.2s ease;
    background: transparent;
}

.storage-video-item.active .selection-check-circle {
    background: var(--apple-accent-color, #0d6efd) !important;
    border-color: var(--apple-accent-color, #0d6efd) !important;
    color: #fff !important;
}

.storage-video-item.active .selection-check-circle .bi-check-lg {
    display: block !important;
}

/* --- Section / Lesson Modal Unified Apple Glass Elements --- */
#sectionModal .section-modal-panel {
    background: rgba(var(--bs-body-bg-rgb), 0.35) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    border-radius: 18px !important;
    padding: 1.25rem !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

#sectionModal #sectionTabsContent {
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0.25rem 0.15rem 0 0.15rem !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
    min-height: 380px;
}

#sectionModal .tagify-styled-wrapper,
#sectionModal .tagify:not(.tagify-styled-wrapper .tagify),
#sectionModal .quiz-toolbar-card,
#sectionModal #current_video_info>div,
#sectionModal #storage_attached_banner,
#sectionModal .storage-attached-banner,
#sectionModal .storage-explorer-tree,
#sectionModal #materials_list>div,
#sectionModal #materials_notice,
#sectionModal #quiz_notice {
    background: rgba(var(--bs-body-bg-rgb), 0.35) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    border-radius: 14px !important;
}

#sectionModal #current_video_info>div,
#sectionModal #storage_attached_banner,
#sectionModal .storage-attached-banner {
    padding: 0.85rem 1.15rem !important;
    margin-bottom: 1rem !important;
}

#sectionModal .storage-explorer-tree {
    background: rgba(var(--bs-body-bg-rgb), 0.22) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    border-radius: 14px !important;
    padding: 0.85rem !important;
    scrollbar-width: thin !important;
    scrollbar-color: rgba(128, 128, 128, 0.25) transparent !important;
}

#sectionModal .storage-explorer-tree::-webkit-scrollbar {
    width: 6px !important;
    height: 6px !important;
}

#sectionModal .storage-explorer-tree::-webkit-scrollbar-track {
    background: transparent !important;
    margin: 4px 0 !important;
}

#sectionModal .storage-explorer-tree::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.18) !important;
    border-radius: 10px !important;
    transition: background-color 0.2s ease !important;
}

#sectionModal .storage-explorer-tree::-webkit-scrollbar-thumb:hover {
    background-color: rgba(0, 0, 0, 0.35) !important;
}

[data-bs-theme="dark"] #sectionModal .storage-explorer-tree {
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent !important;
}

[data-bs-theme="dark"] #sectionModal .storage-explorer-tree::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.18) !important;
}

[data-bs-theme="dark"] #sectionModal .storage-explorer-tree::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.35) !important;
}

#sectionModal .storage-folder-card {
    background: rgba(var(--bs-body-bg-rgb), 0.4) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    border-radius: 10px !important;
    overflow: hidden;
    transition: all 0.2s ease;
}

[data-bs-theme="dark"] #sectionModal .storage-folder-card {
    background: rgba(0, 0, 0, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

#sectionModal .storage-video-item,
#sectionModal .storage-material-item,
#materialsStorageModal .storage-material-item {
    background: rgba(var(--bs-body-bg-rgb), 0.3) !important;
    border: 1px solid transparent !important;
    border-radius: 8px !important;
    transition: all 0.15s ease;
}

#sectionModal .storage-video-item:hover,
#sectionModal .storage-material-item:hover,
#materialsStorageModal .storage-material-item:hover {
    background: rgba(var(--bs-body-bg-rgb), 0.6) !important;
    border-color: var(--apple-card-border, rgba(128, 128, 128, 0.2)) !important;
}

#sectionModal .storage-video-item.active,
#sectionModal .storage-material-item:has(input:checked),
#materialsStorageModal .storage-material-item:has(input:checked) {
    background: rgba(var(--bs-primary-rgb), 0.1) !important;
    border-color: rgba(var(--bs-primary-rgb), 0.35) !important;
}

#materialsStorageModal .storage-folder-card {
    background: rgba(var(--bs-body-bg-rgb), 0.4) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    border-radius: 10px !important;
    overflow: hidden;
    transition: all 0.2s ease;
}

[data-bs-theme="dark"] #materialsStorageModal .storage-folder-card {
    background: rgba(0, 0, 0, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

#sectionModal #video_upload_zone,
#sectionModal #material_upload_zone {
    background: rgba(var(--bs-body-bg-rgb), 0.25) !important;
    border: 2px dashed var(--apple-card-border, rgba(128, 128, 128, 0.28)) !important;
    border-radius: 14px !important;
    outline: none !important;
    box-shadow: none !important;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

#sectionModal #video_upload_zone:hover,
#sectionModal #video_upload_zone.drag-over,
#sectionModal #material_upload_zone:hover,
#sectionModal #material_upload_zone.drag-over {
    background: rgba(var(--bs-primary-rgb), 0.08) !important;
    border-color: var(--apple-accent-color, #0d6efd) !important;
    outline: none !important;
    box-shadow: none !important;
    transform: none !important;
}

#sectionModal .quiz-toolbar-card {
    padding: 10px 18px !important;
    border-radius: 16px !important;
    min-height: 56px !important;
}

#sectionModal .quiz-questions-show-tagify.tagify,
#sectionModal .quiz-toolbar-card .tagify,
#sectionModal .tagify:has(> #quiz_questions_to_show_tagify) {
    min-height: 32px !important;
    height: 32px !important;
    font-size: 0.82rem !important;
    border-radius: 8px !important;
    padding: 0 !important;
    margin: 0 !important;
    position: relative !important;
    background: rgba(var(--bs-body-bg-rgb), 0.4) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.18)) !important;
    box-shadow: none !important;
    display: flex !important;
    align-items: center !important;
    overflow: visible !important;
}

[data-bs-theme="dark"] #sectionModal .quiz-questions-show-tagify.tagify,
[data-bs-theme="dark"] #sectionModal .quiz-toolbar-card .tagify,
[data-bs-theme="dark"] #sectionModal .tagify:has(> #quiz_questions_to_show_tagify) {
    background: rgba(0, 0, 0, 0.25) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

#sectionModal .quiz-questions-show-tagify.tagify.tagify--select .tagify__tag,
#sectionModal .quiz-toolbar-card .tagify .tagify__tag {
    position: absolute !important;
    top: 0 !important;
    bottom: 0 !important;
    left: 4px !important;
    right: 18px !important;
    margin: 0 !important;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: visible !important;
}

#sectionModal .quiz-questions-show-tagify.tagify .tagify__tag>div,
#sectionModal .quiz-toolbar-card .tagify .tagify__tag>div {
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    overflow: visible !important;
}

#sectionModal .quiz-questions-show-tagify.tagify .tagify__tag-text,
#sectionModal .quiz-toolbar-card .tagify .tagify__tag-text {
    font-size: 0.82rem !important;
    font-weight: 500 !important;
    color: var(--apple-text-color) !important;
    line-height: 1.35 !important;
    white-space: nowrap !important;
    text-align: center !important;
    display: block !important;
    width: 100% !important;
    overflow: visible !important;
}

#sectionModal .quiz-questions-show-tagify.tagify.tagify--select::after,
#sectionModal .quiz-toolbar-card .tagify.tagify--select::after {
    right: 6px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    position: absolute !important;
}

#sectionModal .quiz-question-item {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    margin-bottom: 1rem !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
}

#sectionModal .question-type-tagify.tagify {
    min-height: 32px !important;
    height: 32px !important;
    font-size: 0.82rem !important;
    border-radius: 8px !important;
    padding: 0 !important;
    margin: 0 !important;
    position: relative !important;
    background: rgba(var(--bs-body-bg-rgb), 0.4) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.18)) !important;
    box-shadow: none !important;
    overflow: visible !important;
    width: 100% !important;
    display: flex !important;
    align-items: center !important;
}

[data-bs-theme="dark"] #sectionModal .question-type-tagify.tagify {
    background: rgba(0, 0, 0, 0.25) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

#sectionModal .question-type-tagify.tagify.tagify--select .tagify__tag,
#sectionModal .question-type-tagify.tagify .tagify__tag {
    position: absolute !important;
    top: 0 !important;
    bottom: 0 !important;
    left: 8px !important;
    right: 22px !important;
    margin: 0 !important;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: visible !important;
}

#sectionModal .question-type-tagify.tagify .tagify__tag>div {
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    overflow: visible !important;
}

#sectionModal .question-type-tagify.tagify .tagify__tag-text {
    font-size: 0.82rem !important;
    font-weight: 500 !important;
    color: var(--apple-text-color) !important;
    line-height: 1.35 !important;
    white-space: nowrap !important;
    text-align: center !important;
    display: block !important;
    width: 100% !important;
    overflow: visible !important;
}

#sectionModal .question-type-tagify.tagify.tagify--select::after {
    right: 8px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    position: absolute !important;
}

/* Compact Question Type Dropdown */
.tagify__dropdown.question-type-dropdown {
    font-size: 0.82rem !important;
    border-radius: 10px !important;
    min-width: 145px !important;
    background: rgba(var(--bs-body-bg-rgb), 0.85) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.2)) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12) !important;
    padding: 4px !important;
    z-index: 1065 !important;
}

[data-bs-theme="dark"] .tagify__dropdown.question-type-dropdown {
    background: rgba(30, 30, 30, 0.88) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4) !important;
}

.tagify__dropdown.question-type-dropdown .tagify__dropdown__wrapper {
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
    border-radius: 8px !important;
}

.tagify__dropdown.question-type-dropdown .tagify__dropdown__item {
    font-size: 0.82rem !important;
    font-weight: 500 !important;
    padding: 0.4rem 0.65rem !important;
    border-radius: 6px !important;
    margin: 2px 0 !important;
    line-height: 1.25 !important;
    color: var(--apple-text-color) !important;
    cursor: pointer !important;
    transition: all 0.15s ease !important;
}

.tagify__dropdown.question-type-dropdown .tagify__dropdown__item:hover,
.tagify__dropdown.question-type-dropdown .tagify__dropdown__item--active {
    background: var(--apple-accent-color, #0d6efd) !important;
    color: #ffffff !important;
}

#sectionModal #quiz_questions_nav {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.12));
    margin-bottom: 1.25rem !important;
}

#sectionModal #quiz_questions_footer_nav {
    background: transparent !important;
    border: none !important;
    border-top: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    padding: 1rem 0 0 0 !important;
    margin-top: 1.5rem !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

#sectionModal .tagify-styled-wrapper .tagify,
.tagify-styled-wrapper .tagify {
    background: transparent !important;
    background-color: transparent !important;
    border: none !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    padding: 0 !important;
}

#sectionModal .tagify-styled-wrapper .tagify__tag,
.tagify-styled-wrapper .tagify__tag {
    background: transparent !important;
    border: none !important;
    margin: 0 !important;
}

#sectionModal #section_description_editor.ql-container.ql-snow {
    background: rgba(var(--bs-body-bg-rgb), 0.35) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    border-top: none !important;
    border-radius: 0 0 12px 12px !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
}

#sectionModal .ql-toolbar.ql-snow {
    background: rgba(var(--bs-body-bg-rgb), 0.35) !important;
    border: 1px solid var(--apple-card-border, rgba(128, 128, 128, 0.15)) !important;
    border-bottom: 1px solid rgba(128, 128, 128, 0.1) !important;
    border-radius: 12px 12px 0 0 !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
}

[data-bs-theme="dark"] #sectionModal .section-modal-panel,
[data-bs-theme="dark"] #sectionModal .tagify-styled-wrapper,
[data-bs-theme="dark"] #sectionModal .tagify:not(.tagify-styled-wrapper .tagify),
[data-bs-theme="dark"] #sectionModal .quiz-toolbar-card,
[data-bs-theme="dark"] #sectionModal #current_video_info>div,
[data-bs-theme="dark"] #sectionModal #materials_list>div,
[data-bs-theme="dark"] #sectionModal #materials_notice,
[data-bs-theme="dark"] #sectionModal #quiz_notice,
[data-bs-theme="dark"] #sectionModal #section_description_editor.ql-container.ql-snow,
[data-bs-theme="dark"] #sectionModal .ql-toolbar.ql-snow {
    background: rgba(0, 0, 0, 0.18) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
}

[data-bs-theme="dark"] #sectionModal .ql-snow .ql-stroke {
    stroke: var(--apple-text-color, #e0e0e0) !important;
}

[data-bs-theme="dark"] #sectionModal .ql-snow .ql-fill {
    fill: var(--apple-text-color, #e0e0e0) !important;
}

[data-bs-theme="dark"] #sectionModal .ql-snow .ql-picker {
    color: var(--apple-text-color, #e0e0e0) !important;
}

/* --- Filter Toolbar & Fast Status Tabs --- */
#trainingsMainTopNav {
    border-radius: 1rem;
    min-height: 64px;
    padding: 0.85rem 1.25rem !important;
}

#trainingsMainTopNav .tagify {
    background-color: rgba(255, 255, 255, 0.75) !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    border-radius: 0.5rem !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
}

#trainingsMainTopNav .tagify:hover {
    border-color: rgba(0, 0, 0, 0.25) !important;
}

#trainingsMainTopNav .tagify--focus {
    background-color: #fff !important;
    border-color: var(--apple-accent-color) !important;
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.15) !important;
}

[data-bs-theme="dark"] #trainingsMainTopNav .tagify {
    background-color: rgba(255, 255, 255, 0.06) !important;
    border-color: rgba(255, 255, 255, 0.12) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

[data-bs-theme="dark"] #trainingsMainTopNav .tagify:hover {
    border-color: rgba(255, 255, 255, 0.25) !important;
}

[data-bs-theme="dark"] #trainingsMainTopNav .tagify--focus {
    background-color: rgba(255, 255, 255, 0.1) !important;
    border-color: var(--apple-accent-color) !important;
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.25) !important;
}

/* ==========================================================================
   Apple-Style Floating Segmented Control (Status Filter Tabs)
   ========================================================================== */

#trainingsMainTopNav .filter-status-group {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 10px !important;
    box-shadow: none !important;
}

[data-bs-theme="dark"] #trainingsMainTopNav .filter-status-group {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
}

.filter-status-btn {
    border: 1px solid transparent !important;
    border-radius: 9999px !important;
    font-size: 0.81rem !important;
    font-weight: 500 !important;
    padding: 0.42rem 1.05rem !important;
    color: var(--bs-secondary-color, #6c757d) !important;
    background: transparent !important;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.5rem !important;
    line-height: 1.3 !important;
    user-select: none;
    cursor: pointer;
    text-decoration: none !important;
    position: relative;
}

.filter-status-btn:hover:not(.active) {
    color: var(--bs-body-color) !important;
    background-color: rgba(128, 128, 128, 0.1) !important;
}

[data-bs-theme="dark"] .filter-status-btn:hover:not(.active) {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.08) !important;
}

.filter-status-btn:focus,
.filter-status-btn:active {
    outline: none !important;
    box-shadow: none !important;
}

.filter-status-btn.active {
    background-color: var(--apple-accent-color, #0d6efd) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    border-color: transparent !important;
    box-shadow: 0 3px 12px rgba(var(--apple-accent-color-rgb, var(--bs-primary-rgb)), 0.35), 0 0 8px var(--button-glow, rgba(13, 110, 253, 0.25)) !important;
}

.filter-status-btn.active i {
    color: #ffffff !important;
    opacity: 1 !important;
}

[data-bs-theme="dark"] .filter-status-btn.active {
    background-color: var(--apple-accent-color, #0d6efd) !important;
    color: #ffffff !important;
    border-color: transparent !important;
    box-shadow: 0 4px 14px rgba(var(--apple-accent-color-rgb, var(--bs-primary-rgb)), 0.45), 0 0 10px var(--button-glow, rgba(13, 110, 253, 0.3)) !important;
}

/* Micro Count Pill */
.filter-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 9999px;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
    background-color: rgba(128, 128, 128, 0.14);
    color: var(--bs-secondary-color, #6c757d);
    transition: all 0.2s ease;
}

.filter-status-btn.active .filter-count-badge {
    background-color: rgba(255, 255, 255, 0.25) !important;
    color: #ffffff !important;
}

[data-bs-theme="dark"] .filter-status-btn.active .filter-count-badge {
    background-color: rgba(255, 255, 255, 0.25) !important;
    color: #ffffff !important;
}

/* Animated Teacher Only Badge */
.teacher-only-badge {
    display: inline-flex;
    align-items: center;
    transform-origin: left center;
    will-change: transform, opacity, max-width;
}

.teacher-only-badge.badge-pop-in {
    animation: teacherBadgePopIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.teacher-only-badge.badge-pop-out {
    animation: teacherBadgePopOut 0.22s ease-in forwards;
}

@keyframes teacherBadgePopIn {
    0% {
        opacity: 0;
        transform: scale(0.6) translateX(-6px);
        max-width: 0;
        padding-left: 0 !important;
        padding-right: 0 !important;
        margin-left: 0 !important;
    }
    50% {
        opacity: 0.9;
        transform: scale(1.08) translateX(2px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateX(0);
        max-width: 120px;
    }
}

@keyframes teacherBadgePopOut {
    0% {
        opacity: 1;
        transform: scale(1) translateX(0);
        max-width: 120px;
    }
    100% {
        opacity: 0;
        transform: scale(0.5) translateX(-8px);
        max-width: 0;
        padding-left: 0 !important;
        padding-right: 0 !important;
        margin-left: 0 !important;
    }
}

/* ==========================================================================
   Course Cover Image - 4:3 Aspect Ratio (800x600 px recommended)
   ========================================================================== */

.course-cover-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: rgba(128, 128, 128, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-bs-theme="dark"] .course-cover-wrapper {
    background: rgba(255, 255, 255, 0.04);
}

.course-cover-img {
    width: 100% !important;
    height: 100% !important;
    aspect-ratio: 4 / 3 !important;
    object-fit: contain !important;
    object-position: center !important;
    display: block;
}

/* ==========================================================================
   Course Structure & Curriculum Tree Styling (Apple Glass / Form Card Match)
   ========================================================================== */

.course-structure-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.course-stats-summary-card {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03) !important;
    margin-bottom: 0.75rem !important;
}

[data-bs-theme="dark"] .course-stats-summary-card {
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2) !important;
}

.course-stats-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    background: rgba(128, 128, 128, 0.07);
    border: 1px solid rgba(0, 0, 0, 0.06);
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .course-stats-pill {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.08);
}

/* Root Section Item Card (Module / Chapter) */
.section-card-root {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
}

[data-bs-theme="dark"] .section-card-root {
    background: rgba(30, 34, 43, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.section-card-root:hover {
    border-color: rgba(var(--bs-primary-rgb), 0.35);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    transform: translateY(-1px);
}

[data-bs-theme="dark"] .section-card-root:hover {
    border-color: rgba(143, 141, 255, 0.4);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

/* Child Lesson Card */
.section-card-child {
    background: rgba(248, 249, 252, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.01);
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

[data-bs-theme="dark"] .section-card-child {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.section-card-child:hover {
    background: #ffffff;
    border-color: rgba(var(--bs-primary-rgb), 0.3);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.04);
    transform: translateY(-1px);
}

[data-bs-theme="dark"] .section-card-child:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(143, 141, 255, 0.3);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.25);
}

/* Nested Children Tree Connector */
.section-children-container {
    margin-left: 1.25rem;
    padding-left: 1.15rem;
    border-left: 2px dashed rgba(var(--bs-primary-rgb), 0.22);
    margin-top: 0.4rem;
    margin-bottom: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

[data-bs-theme="dark"] .section-children-container {
    border-left-color: rgba(143, 141, 255, 0.25);
}

/* Index / Number Badges */
.section-index-badge {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    font-weight: 700;
    background: rgba(var(--bs-primary-rgb), 0.12);
    color: var(--apple-accent-color, #0d6efd);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

[data-bs-theme="dark"] .section-index-badge {
    background: rgba(143, 141, 255, 0.2);
    color: #a5a3ff;
}

.lesson-index-badge {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.74rem;
    font-weight: 600;
    background: rgba(128, 128, 128, 0.1);
    color: var(--bs-secondary-color);
}

/* Section Title Typography */
.section-title-text {
    font-size: 0.95rem;
    letter-spacing: -0.01em;
    color: var(--bs-body-color);
}

.lesson-title-text {
    font-size: 0.88rem;
    letter-spacing: -0.005em;
    color: var(--bs-body-color);
}

/* Section Collapse / Expand Chevron Button */
.section-collapse-toggle {
    width: 26px;
    height: 26px;
    min-width: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: var(--bs-secondary-color);
    background: transparent;
    border: none;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    cursor: pointer;
    text-decoration: none !important;
}

.section-collapse-toggle:hover {
    background: rgba(128, 128, 128, 0.12);
    color: var(--bs-body-color);
}

.section-collapse-toggle i {
    transition: transform 0.2s ease;
}

/* Content Badges Container */
.section-content-badges {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
}

/* Section Content Indicator Badges */
.section-badge {
    font-size: 0.75rem;
    font-weight: 550;
    padding: 0.3rem 0.65rem;
    border-radius: 7px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    line-height: 1.25;
    letter-spacing: 0.01em;
    transition: all 0.18s ease-in-out;
    white-space: nowrap;
}

.section-badge:hover {
    transform: translateY(-1px);
}

/* Video Badge */
.section-badge-video {
    background: rgba(13, 110, 253, 0.09) !important;
    color: #0d6efd !important;
    border: 1px solid rgba(13, 110, 253, 0.22) !important;
}

[data-bs-theme="dark"] .section-badge-video {
    background: rgba(13, 110, 253, 0.18) !important;
    color: #6ea8fe !important;
    border: 1px solid rgba(13, 110, 253, 0.35) !important;
}

/* Material / Files Badge */
.section-badge-material {
    background: rgba(13, 202, 240, 0.11) !important;
    color: #055160 !important;
    border: 1px solid rgba(13, 202, 240, 0.26) !important;
}

[data-bs-theme="dark"] .section-badge-material {
    background: rgba(13, 202, 240, 0.18) !important;
    color: #6edff6 !important;
    border: 1px solid rgba(13, 202, 240, 0.35) !important;
}

/* Active Quiz Badge */
.section-badge-quiz {
    background: rgba(255, 193, 7, 0.14) !important;
    color: #664d03 !important;
    border: 1px solid rgba(255, 193, 7, 0.3) !important;
}

[data-bs-theme="dark"] .section-badge-quiz {
    background: rgba(255, 193, 7, 0.18) !important;
    color: #ffda6a !important;
    border: 1px solid rgba(255, 193, 7, 0.35) !important;
}

/* Inactive Quiz Badge */
.section-badge-quiz-inactive {
    background: rgba(108, 117, 125, 0.07) !important;
    color: #6c757d !important;
    border: 1px dashed rgba(108, 117, 125, 0.25) !important;
}

[data-bs-theme="dark"] .section-badge-quiz-inactive {
    background: rgba(108, 117, 125, 0.14) !important;
    color: #adb5bd !important;
    border: 1px dashed rgba(108, 117, 125, 0.3) !important;
}

/* Text / Article Lesson Badge */
.section-badge-text {
    background: rgba(108, 117, 125, 0.09) !important;
    color: #495057 !important;
    border: 1px solid rgba(108, 117, 125, 0.2) !important;
}

[data-bs-theme="dark"] .section-badge-text {
    background: rgba(255, 255, 255, 0.07) !important;
    color: #dee2e6 !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
}

/* Notes Badge */
.section-badge-notes {
    background: rgba(25, 135, 84, 0.09) !important;
    color: #0f5132 !important;
    border: 1px solid rgba(25, 135, 84, 0.22) !important;
}

[data-bs-theme="dark"] .section-badge-notes {
    background: rgba(25, 135, 84, 0.18) !important;
    color: #75b798 !important;
    border: 1px solid rgba(25, 135, 84, 0.3) !important;
}

/* Empty / No Content Badge */
.section-badge-empty {
    background: rgba(0, 0, 0, 0.025) !important;
    color: #8c98a4 !important;
    border: 1px dashed rgba(0, 0, 0, 0.14) !important;
    font-size: 0.72rem !important;
}

[data-bs-theme="dark"] .section-badge-empty {
    background: rgba(255, 255, 255, 0.035) !important;
    color: #8c98a4 !important;
    border: 1px dashed rgba(255, 255, 255, 0.14) !important;
}

/* Action Buttons */
.section-actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.section-btn {
    border-radius: 8px !important;
    padding: 0.28rem 0.55rem !important;
    font-size: 0.78rem !important;
    font-weight: 500 !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 0.3rem !important;
    transition: all 0.18s ease-in-out !important;
    box-shadow: none !important;
}

.section-btn:hover {
    transform: translateY(-1px);
}