/* ============================================
   COURSES - Listing, Detail, Lesson Viewer
   ============================================ */

/* ---- Preview Banner ---- */
.course-preview-banner {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(247, 140, 108, 0.12);
    border-bottom: 1px solid rgba(247, 140, 108, 0.25);
    color: #f78c6c;
    font-size: 13px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.course-preview-banner svg { flex-shrink: 0; }
.course-preview-banner strong { color: #ffcb6b; }

/* ---- Course Grid (listing page) ---- */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.course-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-4px);
    border-color: rgba(130,170,255,0.3);
    box-shadow: 0 8px 32px rgba(130,170,255,0.1);
}

.course-card__image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: rgba(255,255,255,0.03);
}

.course-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-card__image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-muted);
    background: linear-gradient(135deg, rgba(130,170,255,0.05), rgba(199,146,234,0.05));
}

.course-card__level {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-card__level--beginner { background: rgba(195,232,141,0.15); color: #c3e88d; }
.course-card__level--intermediate { background: rgba(130,170,255,0.15); color: #82aaff; }
.course-card__level--advanced { background: rgba(199,146,234,0.15); color: #c792ea; }

.course-card__body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.course-card__meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.course-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
}

.course-card__desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}

.course-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 4px;
}

.course-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.course-card__price {
    font-weight: 700;
    font-size: 18px;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.course-card__price--free { color: #c3e88d; }
.course-card__price small { font-size: 11px; color: var(--text-muted); font-weight: 400; }

.course-card__students {
    font-size: 12px;
    color: var(--text-muted);
}

.course-card__progress {
    height: 3px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.course-card__progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #82aaff, #7fdbca);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* ---- Level badges (admin/dashboard) ---- */
.course-level {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.course-level--beginner { background: rgba(195,232,141,0.12); color: #c3e88d; }
.course-level--intermediate { background: rgba(130,170,255,0.12); color: #82aaff; }
.course-level--advanced { background: rgba(199,146,234,0.12); color: #c792ea; }

/* ---- Course Detail ---- */
.course-detail__layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 32px;
    align-items: start;
}

.course-detail__hero {
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
}

.course-detail__thumb {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    display: block;
}

.course-detail__hero-content {
    padding: 24px;
}

.course-detail__title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 12px 0 8px;
    line-height: 1.2;
}

.course-detail__desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 16px;
}

.course-detail__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
}

.course-detail__meta strong { color: var(--text-primary); }

.course-detail__about,
.course-detail__curriculum {
    margin-top: 32px;
}

.course-detail__about h2,
.course-detail__curriculum h2 {
    font-size: 20px;
    color: var(--text-primary);
    margin: 0 0 16px;
}

.course-detail__about-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ---- Course Sidebar ---- */
.course-sidebar {
    position: sticky;
    top: 100px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 24px;
}

.course-sidebar__price {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
    margin-bottom: 16px;
}

.course-sidebar__pricing-model {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 400;
}

.course-sidebar__enrolled {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #c3e88d;
    font-weight: 500;
    margin-bottom: 12px;
}

.course-sidebar__progress {
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 6px;
}

.course-sidebar__progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #82aaff, #7fdbca);
    border-radius: 2px;
}

.course-sidebar__progress-text {
    font-size: 12px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 16px;
}

.btn--block {
    display: block;
    width: 100%;
    text-align: center;
    margin-bottom: 20px;
}

.btn--success {
    background: rgba(195,232,141,0.15);
    color: #c3e88d;
    border: 1px solid rgba(195,232,141,0.3);
}

.course-sidebar__info {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 16px;
}

.course-sidebar__info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.course-sidebar__info-row span { color: var(--text-muted); }
.course-sidebar__info-row strong { color: var(--text-primary); }

.course-sidebar__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 16px;
}

/* ---- Curriculum Accordion ---- */
.curriculum {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.curriculum__chapter {
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 8px;
    overflow: hidden;
}

.curriculum__chapter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 16px 20px;
    background: rgba(255,255,255,0.02);
    border: none;
    color: inherit;
    cursor: pointer;
    text-align: left;
    font: inherit;
    transition: background 0.2s;
}

.curriculum__chapter-header:hover {
    background: rgba(255,255,255,0.04);
}

.curriculum__chapter-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.curriculum__chapter-num {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(130,170,255,0.1);
    color: #82aaff;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

.curriculum__chapter-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
}

.curriculum__chapter-count {
    font-size: 12px;
    color: var(--text-muted);
}

.curriculum__arrow {
    color: var(--text-muted);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.curriculum__chapter--open .curriculum__arrow {
    transform: rotate(180deg);
}

.curriculum__lessons {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border-top: 1px solid transparent;
}

.curriculum__chapter--open .curriculum__lessons {
    grid-template-rows: 1fr;
    border-top-color: rgba(255,255,255,0.04);
}

.curriculum__lessons-inner {
    overflow: hidden;
}

.curriculum__lesson {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px 12px 60px;
    border-bottom: 1px solid rgba(255,255,255,0.02);
    transition: background 0.2s;
}

.curriculum__lesson:hover {
    background: rgba(255,255,255,0.02);
}

.curriculum__lesson--completed {
    opacity: 0.7;
}

.curriculum__lesson-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.curriculum__check-wrap {
    position: relative;
    flex-shrink: 0;
    display: inline-flex;
}
.curriculum__check-wrap[data-completed-at]::after {
    content: 'Completed ' attr(data-completed-at);
    position: absolute; left: calc(100% + 8px); top: 50%;
    transform: translateY(-50%) translateX(-4px); white-space: nowrap;
    font-size: 11px; font-weight: 500; line-height: 1.3;
    color: #c3e88d; background: rgba(10, 16, 32, 0.95);
    border: 1px solid rgba(195, 232, 141, 0.2);
    padding: 5px 10px; border-radius: 8px;
    pointer-events: none; opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 100; backdrop-filter: blur(12px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}
.curriculum__check-wrap[data-completed-at]:hover::after {
    opacity: 1; transform: translateY(-50%) translateX(0);
}

.curriculum__lesson-check {
    color: #c3e88d;
    flex-shrink: 0;
}

.curriculum__lesson-title {
    font-size: 14px;
    color: var(--text-secondary);
}

.curriculum__lesson-title--link {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.curriculum__lesson-title--link:hover {
    color: #82aaff;
}

.curriculum__lesson-badge {
    font-size: 10px;
    padding: 2px 8px;
    background: rgba(130,170,255,0.1);
    color: #82aaff;
    border-radius: 4px;
    font-weight: 500;
    flex-shrink: 0;
    border: none;
}

.curriculum__lesson-badge--btn {
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.curriculum__lesson-badge--btn:hover {
    background: rgba(130,170,255,0.2);
    color: #a8c6ff;
}

.curriculum__lesson-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ---- Lesson Preview Modal ---- */
.lp-overlay {
    position: fixed; inset: 0; z-index: 9999;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity 0.25s ease;
}

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

.lp-modal {
    width: 90%; max-width: 800px; max-height: 90vh;
    background: rgba(15, 17, 28, 0.97);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px;
    display: flex; flex-direction: column;
    box-shadow: 0 24px 80px rgba(0,0,0,0.6);
    transform: translateY(20px) scale(0.97);
    transition: transform 0.25s ease;
}

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

.lp-modal__header {
    display: flex; justify-content: space-between; align-items: flex-start;
    padding: 20px 24px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}

.lp-modal__title {
    font-size: 18px; font-weight: 600; color: var(--text-primary);
}

.lp-modal__subtitle {
    font-size: 13px; color: var(--text-muted); margin-top: 2px;
}

.lp-modal__close {
    background: none; border: none; color: var(--text-muted);
    font-size: 24px; cursor: pointer; padding: 0 4px;
    transition: color 0.2s;
    line-height: 1;
}

.lp-modal__close:hover { color: var(--text-primary); }

.lp-modal__body {
    overflow-y: auto; padding: 24px;
    flex: 1; min-height: 0;
}

.lp-modal__loading {
    display: flex; flex-direction: column; align-items: center;
    gap: 12px; padding: 60px 20px; color: var(--text-muted); font-size: 13px;
}

.lp-modal__spinner {
    width: 32px; height: 32px;
    border: 3px solid rgba(255,255,255,0.06);
    border-top-color: #82aaff;
    border-radius: 50%;
    animation: lpSpin 0.8s linear infinite;
}

@keyframes lpSpin { to { transform: rotate(360deg); } }

.lp-modal__error {
    text-align: center; padding: 40px; color: #ff5370; font-size: 14px;
}

.lp-modal__empty {
    text-align: center; padding: 40px; color: var(--text-muted); font-size: 14px;
}

.lp-video {
    position: relative; padding-bottom: 56.25%; height: 0;
    border-radius: 10px; overflow: hidden; margin-bottom: 20px;
    background: rgba(0,0,0,0.3);
}

.lp-video iframe, .lp-video video {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    border: none;
}

.lp-video-locked {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 40px 20px;
    border-radius: 10px; margin-bottom: 20px;
    background: rgba(255,255,255,0.02);
    border: 1px dashed rgba(255,255,255,0.08);
    color: var(--text-muted); font-size: 13px;
}

.lp-extra-video { margin-bottom: 20px; }

.lp-extra-video__title {
    font-size: 14px; font-weight: 600; color: var(--text-secondary);
    margin-bottom: 8px;
}

.lp-content {
    font-size: 14px; line-height: 1.7; color: var(--text-secondary);
    margin-bottom: 20px;
}

.lp-content h1, .lp-content h2, .lp-content h3 { color: var(--text-primary); margin: 16px 0 8px; }
.lp-content p { margin: 0 0 12px; }
.lp-content code { background: rgba(130,170,255,0.06); padding: 2px 6px; border-radius: 4px; font-size: 12px; }
.lp-content pre { background: rgba(0,0,0,0.3); padding: 16px; border-radius: 8px; overflow-x: auto; margin: 12px 0; }
.lp-content pre code { background: none; padding: 0; }
.lp-content img { max-width: 100%; border-radius: 8px; }

.lp-attachments {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 16px; margin-bottom: 20px;
}

.lp-attachments__title {
    display: flex; align-items: center; gap: 6px;
    font-size: 14px; font-weight: 600; color: var(--text-secondary);
    margin-bottom: 10px;
}

.lp-attachment {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: 8px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.04);
    color: var(--text-secondary); text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
    margin-bottom: 6px;
}

.lp-attachment:hover {
    background: rgba(130,170,255,0.06);
    border-color: rgba(130,170,255,0.15);
    color: #82aaff;
}

.lp-attachment__name { flex: 1; font-size: 13px; font-weight: 500; }
.lp-attachment__size { font-size: 11px; color: var(--text-muted); flex-shrink: 0; }

.lp-cta {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 20px; text-align: center;
}

/* ---- Lesson Viewer ---- */
.lesson-viewer {
    display: flex;
    min-height: 100vh;
    padding-top: 72px;
}

.lesson-sidebar {
    width: 320px;
    flex-shrink: 0;
    background: rgba(10,14,26,0.95);
    border-right: 1px solid rgba(255,255,255,0.06);
    height: calc(100vh - 72px);
    position: sticky;
    top: 72px;
    overflow-y: auto;
    z-index: 10;
    scrollbar-width: thin;
    scrollbar-color: rgba(130,170,255,0.15) transparent;
}

.lesson-sidebar__header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.lesson-sidebar__course-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: block;
    margin-bottom: 12px;
}

.lesson-sidebar__course-title:hover { color: #82aaff; }

.lesson-sidebar__progress {
    height: 3px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
}

.lesson-sidebar__progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #82aaff, #7fdbca);
    border-radius: 2px;
    transition: width 0.5s ease;
}

.lesson-sidebar__progress-text {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
    margin-top: 4px;
}

.lesson-sidebar__chapter {
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

.lesson-sidebar__chapter--current {
    background: rgba(130,170,255,0.02);
}

.lesson-sidebar__chapter-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 14px 20px 8px;
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    text-align: left;
    font: inherit;
    transition: background 0.2s;
}

.lesson-sidebar__chapter-toggle:hover {
    background: rgba(255,255,255,0.02);
}

.lesson-sidebar__chapter-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.lesson-sidebar__chapter-arrow {
    color: var(--text-muted);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.lesson-sidebar__chapter-toggle--open .lesson-sidebar__chapter-arrow {
    transform: rotate(180deg);
}

.lesson-sidebar__lessons {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.lesson-sidebar__lessons--open {
    grid-template-rows: 1fr;
}

.lesson-sidebar__lessons-inner {
    overflow: hidden;
}

.lesson-sidebar__lesson {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}

.lesson-sidebar__lesson:hover {
    background: rgba(255,255,255,0.03);
    color: var(--text-primary);
}

.lesson-sidebar__lesson--active {
    background: rgba(130,170,255,0.08);
    color: #82aaff;
    border-left: 3px solid #82aaff;
}

.lesson-sidebar__lesson--completed { opacity: 0.6; }

.lesson-sidebar__check { color: #c3e88d; flex-shrink: 0; }

.lesson-sidebar__check-wrap {
    position: relative; flex-shrink: 0; display: inline-flex;
}
.lesson-sidebar__check-wrap[data-completed-at]::after {
    content: 'Completed ' attr(data-completed-at);
    position: absolute; left: calc(100% + 8px); top: 50%;
    transform: translateY(-50%) translateX(-4px); white-space: nowrap;
    font-size: 11px; font-weight: 500; line-height: 1.3;
    color: #c3e88d; background: rgba(10, 16, 32, 0.95);
    border: 1px solid rgba(195, 232, 141, 0.2);
    padding: 5px 10px; border-radius: 8px;
    pointer-events: none; opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 100; backdrop-filter: blur(12px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}
.lesson-sidebar__check-wrap[data-completed-at]:hover::after {
    opacity: 1; transform: translateY(-50%) translateX(0);
}

.lesson-sidebar__bullet {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    flex-shrink: 0;
}

.lesson-sidebar__lesson-title {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lesson-sidebar__duration {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    flex-shrink: 0;
}

/* ---- Lesson Main ---- */
.lesson-main {
    flex: 1;
    min-width: 0;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 32px 80px;
}

.lesson-sidebar-toggle {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 20;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(130,170,255,0.2);
    border: 1px solid rgba(130,170,255,0.3);
    color: #82aaff;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* ---- Video Player ---- */
.lesson-player {
    margin: 0 -32px;
    background: #000;
    border-radius: 0 0 12px 12px;
}

.lesson-player__video {
    width: 100%;
    display: block;
    max-height: 540px;
}

.lesson-player__embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.lesson-player__embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ---- Lesson Info Bar ---- */
.lesson-info-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    gap: 12px;
    flex-wrap: wrap;
}

.lesson-info-bar__left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
}

.lesson-info-bar__chapter {
    color: #82aaff;
    font-weight: 500;
}

.lesson-info-bar__separator { opacity: 0.4; }

.lesson-info-bar__duration,
.lesson-info-bar__attachments {
    display: flex;
    align-items: center;
    gap: 4px;
}

.lesson-info-bar__right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.lesson-info-bar__action {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.lesson-info-bar__action:hover {
    background: rgba(130,170,255,0.08);
    border-color: rgba(130,170,255,0.2);
    color: #82aaff;
}

.lesson-info-bar__complete {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.lesson-info-bar__complete:hover {
    border-color: rgba(195,232,141,0.3);
    color: #c3e88d;
}

.lesson-info-bar__complete--done {
    background: rgba(195,232,141,0.08);
    border-color: rgba(195,232,141,0.2);
    color: #c3e88d;
}

/* ---- Lesson Header ---- */
.lesson-header {
    padding: 20px 0 16px;
}

.lesson-header__title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
}

/* ---- Toggle Switches ---- */
.lesson-toggles {
    display: flex;
    gap: 20px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.lesson-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.lesson-toggle--compact { gap: 6px; }

.lesson-toggle__label {
    font-size: 12px;
    color: var(--text-muted);
    transition: color 0.2s;
}

.lesson-toggle:hover .lesson-toggle__label { color: var(--text-secondary); }

.lesson-toggle__input {
    display: none;
}

.lesson-toggle__switch {
    position: relative;
    width: 36px;
    height: 20px;
    background: rgba(255,255,255,0.08);
    border-radius: 10px;
    transition: background 0.3s ease;
    flex-shrink: 0;
}

.lesson-toggle__switch--sm {
    width: 28px;
    height: 16px;
    border-radius: 8px;
}

.lesson-toggle__switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lesson-toggle__switch--sm::after {
    width: 12px;
    height: 12px;
}

.lesson-toggle__input:checked + .lesson-toggle__switch {
    background: rgba(130,170,255,0.2);
}

.lesson-toggle__input:checked + .lesson-toggle__switch::after {
    transform: translateX(16px);
    background: #82aaff;
}

.lesson-toggle__input:checked + .lesson-toggle__switch--sm::after {
    transform: translateX(12px);
}

/* ---- Lesson Tabs ---- */
.lesson-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    margin-top: 8px;
}

.lesson-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 20px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.3s ease;
}

.lesson-tab:hover { color: var(--text-secondary); }

.lesson-tab--active {
    color: #82aaff;
    border-bottom-color: #82aaff;
}

.lesson-tab__count {
    font-size: 11px;
    background: rgba(255,255,255,0.06);
    padding: 1px 6px;
    border-radius: 8px;
    font-weight: 400;
}

.lesson-tab--active .lesson-tab__count {
    background: rgba(130,170,255,0.15);
    color: #82aaff;
}

/* ---- Tab Panels ---- */
.lesson-tab-panel {
    display: none;
    animation: lessonFadeIn 0.3s ease;
}

.lesson-tab-panel--active { display: block; }

@keyframes lessonFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- Lesson Content ---- */
.lesson-content {
    padding: 24px 0;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 15px;
}

.lesson-content h2,
.lesson-content h3,
.lesson-content h4 {
    color: var(--text-primary);
    margin: 24px 0 12px;
}

.lesson-content pre {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 13px;
}

.lesson-content code {
    background: rgba(130,170,255,0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: #82aaff;
}

.lesson-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

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

.lesson-content ul, .lesson-content ol {
    padding-left: 24px;
}

/* ---- Attachments ---- */
.lesson-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--text-primary);
    margin: 0 0 12px;
    font-weight: 600;
}

.lesson-attachments {
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.lesson-attachments__list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-attachment {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    transition: border-color 0.2s;
}

.lesson-attachment:hover {
    border-color: rgba(130,170,255,0.3);
}

.lesson-attachment__info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.lesson-attachment__name {
    font-size: 13px;
}

.lesson-attachment__size {
    font-size: 11px;
    color: var(--text-muted);
}

/* ---- Lesson Navigation ---- */
.lesson-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.lesson-nav__btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    transition: border-color 0.2s, color 0.2s;
    max-width: 50%;
}

.lesson-nav__btn:hover {
    border-color: rgba(130,170,255,0.3);
    color: var(--text-primary);
}

.lesson-nav__text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow: hidden;
}

.lesson-nav__label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.lesson-nav__title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lesson-nav__btn--pulsing {
    animation: lessonNavPulse 0.5s ease 3;
    border-color: rgba(130,170,255,0.5);
}

@keyframes lessonNavPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(130,170,255,0); }
    50% { box-shadow: 0 0 12px 4px rgba(130,170,255,0.15); }
}

/* ---- Notes Panel ---- */
.lesson-notes {
    padding: 16px 0;
}

.lesson-notes__form-wrapper {
    margin-bottom: 20px;
}

.lesson-notes__form {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-notes__textarea {
    min-height: 72px;
}

.lesson-notes__form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lesson-notes__form-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lesson-notes__current-time {
    font-size: 11px;
    font-family: var(--font-mono);
    color: #82aaff;
    background: rgba(130,170,255,0.08);
    padding: 2px 8px;
    border-radius: 4px;
}

.lesson-notes__list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-notes__empty,
.lesson-discussion__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 48px 20px;
    color: var(--text-muted);
    text-align: center;
}

.lesson-notes__empty svg,
.lesson-discussion__empty svg { opacity: 0.3; }

.lesson-note {
    padding: 14px 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 8px;
    transition: border-color 0.3s ease;
}

.lesson-note:hover {
    border-color: rgba(255,255,255,0.08);
}

.lesson-note--new {
    animation: lessonFadeIn 0.3s ease;
}

.lesson-note__header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.lesson-note__timestamp {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-family: var(--font-mono);
    color: #82aaff;
    background: rgba(130,170,255,0.1);
    padding: 2px 8px;
    border-radius: 4px;
    cursor: pointer;
    border: none;
    transition: background 0.2s;
}

.lesson-note__timestamp:hover {
    background: rgba(130,170,255,0.2);
}

.lesson-note__date {
    font-size: 11px;
    color: var(--text-muted);
}

.lesson-note__actions {
    display: flex;
    gap: 4px;
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lesson-note:hover .lesson-note__actions { opacity: 1; }

.lesson-note__action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

.lesson-note__action:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

.lesson-note__action.lesson-note__delete:hover {
    color: #ff5370;
    background: rgba(255,83,112,0.08);
}

.lesson-note__content {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.lesson-note__edit-textarea {
    min-height: 48px;
    margin-bottom: 0;
}

.lesson-note__edit-actions {
    display: flex;
    gap: 6px;
    margin-top: 8px;
}

/* ---- Discussion Panel ---- */
.lesson-discussion {
    padding: 16px 0;
}

.lesson-discussion__form-wrapper {
    margin-bottom: 20px;
}

.lesson-discussion__form {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-discussion__textarea {
    min-height: 72px;
}

.lesson-discussion__form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lesson-discussion__form-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lesson-discussion__login-prompt {
    padding: 16px 0;
    font-size: 13px;
    color: var(--text-muted);
}

.lesson-discussion__login-prompt a {
    color: #82aaff;
    text-decoration: none;
}

.lesson-discussion__login-prompt a:hover { text-decoration: underline; }

.lesson-discussion__list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lesson-comment {
    padding: 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 8px;
    transition: border-color 0.3s ease;
}

.lesson-comment:hover {
    border-color: rgba(255,255,255,0.08);
}

.lesson-comment--reply {
    padding: 12px;
    margin-left: 0;
    background: rgba(255,255,255,0.01);
}

.lesson-comment__header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.lesson-comment__avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(130,170,255,0.12);
    color: #82aaff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

.lesson-comment__avatar--sm {
    width: 22px;
    height: 22px;
    font-size: 10px;
}

.lesson-comment__meta {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.lesson-comment__author {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.lesson-comment__role {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 4px;
    font-weight: 500;
}

.lesson-comment__date {
    font-size: 11px;
    color: var(--text-muted);
}

.lesson-comment__body {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.lesson-comment__reply-btn {
    display: inline-block;
    margin-top: 8px;
    padding: 0;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: color 0.2s;
}

.lesson-comment__reply-btn:hover { color: #82aaff; }

.lesson-comment__replies {
    margin-top: 12px;
    padding-left: 20px;
    border-left: 2px solid rgba(130,170,255,0.1);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-comment__reply-form {
    margin-top: 10px;
    animation: lessonFadeIn 0.2s ease;
}

.lesson-content--empty {
    padding: 48px 0;
    text-align: center;
    color: var(--text-muted);
}

/* ---- Instructor Course Builder ---- */
.instr__chapters {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.instr__chapter {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    overflow: hidden;
}

.instr__chapter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(255,255,255,0.01);
    gap: 12px;
}

.instr__chapter-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.instr__chapter-drag {
    cursor: grab;
    color: var(--text-muted);
    font-size: 14px;
}

.instr__chapter-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.instr__chapter-count {
    font-size: 12px;
    color: var(--text-muted);
}

.instr__chapter-price {
    font-size: 12px;
    color: #c3e88d;
    font-family: var(--font-mono);
}

.instr__chapter-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.instr__lessons {
    border-top: 1px solid rgba(255,255,255,0.04);
}

.instr__lesson {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px 12px 48px;
    border-bottom: 1px solid rgba(255,255,255,0.02);
    transition: background 0.15s;
}

.instr__lesson:hover { background: rgba(255,255,255,0.02); }
.instr__lesson:last-child { border-bottom: none; }

.instr__lesson-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.instr__lesson-drag {
    cursor: grab;
    color: var(--text-muted);
    font-size: 12px;
}

.instr__lesson-title {
    font-size: 14px;
    color: var(--text-primary);
}

.instr__lesson-badge {
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 500;
}

.instr__lesson-badge--preview {
    background: rgba(130,170,255,0.1);
    color: #82aaff;
}

.instr__lesson-price {
    font-size: 12px;
    color: #c3e88d;
    font-family: var(--font-mono);
}

.instr__lesson-duration {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.instr__lesson-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

/* ---- Course Builder (inline editing) ---- */
.cb__save-status {
    font-size: 12px;
    font-family: var(--font-mono);
    transition: color 0.2s;
}
.cb__save-status--saving { color: var(--text-muted); }
.cb__save-status--saved { color: #7fdbca; }
.cb__save-status--error { color: #ff5370; }

.cb__editable {
    cursor: text;
    border-radius: 4px;
    padding: 2px 4px;
    margin: -2px -4px;
    transition: background 0.15s;
}
.cb__editable:hover { background: rgba(130, 170, 255, 0.06); }
.cb__editable--active {
    background: rgba(130, 170, 255, 0.08);
    outline: 1px solid rgba(130, 170, 255, 0.2);
}

.cb__inline-add {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    animation: cbSlideIn 0.2s ease;
}
.cb__inline-add--chapter {
    padding: 12px 0;
}
.cb__inline-add--lesson {
    padding-left: 48px;
}
.cb__inline-input {
    flex: 1;
    min-width: 0;
}
.cb__inline-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.cb__add-chapter-btn {
    width: 100%;
    justify-content: center;
    border-style: dashed;
    margin-top: 8px;
}

@keyframes cbSlideIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Drag & drop states */
.cb__dragging {
    opacity: 0.4;
}
.cb__drop-above {
    box-shadow: inset 0 3px 0 0 #82aaff;
}
.cb__drop-below {
    box-shadow: inset 0 -3px 0 0 #82aaff;
}

.instr__chapter[draggable="true"] { cursor: default; }
.instr__chapter-drag,
.instr__lesson-drag { cursor: grab; user-select: none; }
.instr__chapter-drag:active,
.instr__lesson-drag:active { cursor: grabbing; }

/* Attachment list (instructor lesson editor) */
.instr__attachment {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

.instr__attachment:last-child { border-bottom: none; }

.instr__attachment-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-primary);
}

/* ---- Dashboard: My Courses ---- */
.dash__course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.dash__course-card {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s;
}

.dash__course-card:hover {
    border-color: rgba(130,170,255,0.3);
}

.dash__course-thumb {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    background: rgba(255,255,255,0.03);
}

.dash__course-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dash__course-thumb-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-muted);
}

.dash__course-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dash__course-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.dash__course-meta {
    font-size: 12px;
    color: var(--text-muted);
}

.dash__course-progress {
    height: 3px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
    margin-top: auto;
}

.dash__course-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #82aaff, #7fdbca);
    border-radius: 2px;
}

.dash__course-progress-text {
    font-size: 11px;
    color: var(--text-muted);
}

.dash__empty-state {
    text-align: center;
    padding: 60px 20px;
}

.dash__back-link {
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 8px;
    transition: color 0.2s;
}

.dash__back-link:hover { color: #82aaff; }

/* ---- Instructor Course List ---- */
.instr__course-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.instr__course-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: rgba(10, 16, 32, 0.45);
    border: 1px solid rgba(130, 170, 255, 0.06);
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.instr__course-item:hover {
    border-color: rgba(130, 170, 255, 0.15);
    background: rgba(16, 24, 45, 0.5);
}

.instr__course-thumb {
    width: 64px;
    height: 64px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
    background: rgba(130, 170, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.instr__course-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.instr__course-thumb-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-muted);
}

.instr__course-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.instr__course-top {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.instr__course-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.instr__course-cat {
    font-size: 12px;
    color: var(--text-muted);
}

.instr__course-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.instr__course-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.instr__course-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

/* ---- Wizard (Create Course) ---- */
.wizard__steps {
    display: flex;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(130, 170, 255, 0.06);
    gap: 0;
}

.wizard__step {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: opacity 0.3s ease;
    opacity: 0.4;
    flex-shrink: 0;
}

.wizard__step--active {
    opacity: 1;
}

.wizard__step--done {
    opacity: 0.7;
    cursor: pointer;
}

.wizard__step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    font-family: var(--font-mono);
    background: rgba(130, 170, 255, 0.06);
    color: var(--text-muted);
    border: 2px solid rgba(130, 170, 255, 0.1);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.wizard__step--active .wizard__step-num {
    background: linear-gradient(135deg, #82aaff, #7fdbca);
    color: #050810;
    border-color: transparent;
    box-shadow: 0 0 16px rgba(130, 170, 255, 0.3);
}

.wizard__step--done .wizard__step-num {
    background: rgba(127, 219, 202, 0.15);
    color: #7fdbca;
    border-color: rgba(127, 219, 202, 0.3);
}

.wizard__step-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.wizard__step-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.wizard__step--active .wizard__step-label {
    color: #82aaff;
}

.wizard__step-desc {
    font-size: 11px;
    color: var(--text-muted);
}

.wizard__step-line {
    flex: 1;
    height: 2px;
    background: rgba(130, 170, 255, 0.08);
    margin: 0 12px;
    min-width: 20px;
    transition: background 0.3s ease;
}

.wizard__step-line--done {
    background: linear-gradient(90deg, #7fdbca, rgba(130, 170, 255, 0.3));
}

.wizard__panel {
    display: none;
}

.wizard__panel--active {
    display: block;
    animation: wizardFadeIn 0.25s ease;
}

@keyframes wizardFadeIn {
    from { opacity: 0; transform: translateX(10px); }
    to { opacity: 1; transform: translateX(0); }
}

.wizard__divider {
    height: 1px;
    background: rgba(130, 170, 255, 0.06);
}

.wizard__upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 32px;
    border: 2px dashed rgba(130, 170, 255, 0.12);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
}

.wizard__upload-zone:hover,
.wizard__upload-zone--drag {
    border-color: rgba(130, 170, 255, 0.3);
    background: rgba(130, 170, 255, 0.03);
    color: var(--text-secondary);
}

.wizard__upload-zone svg {
    opacity: 0.5;
}

.wizard__upload-preview {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(130, 170, 255, 0.1);
    max-height: 200px;
}

.wizard__upload-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    max-height: 200px;
}

.wizard__upload-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 83, 112, 0.85);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    transition: transform 0.2s;
}

.wizard__upload-remove:hover {
    transform: scale(1.1);
}

.wizard__summary {
    background: rgba(130, 170, 255, 0.03);
    border: 1px solid rgba(130, 170, 255, 0.08);
    border-radius: 10px;
    padding: 20px;
}

.wizard__summary-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.wizard__summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.wizard__summary-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.wizard__summary-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.wizard__summary-value {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

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

    .course-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .course-grid {
        grid-template-columns: 1fr;
    }

    .lesson-viewer {
        flex-direction: column;
    }

    .lesson-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 300px;
        height: 100vh;
        z-index: 100;
        transform: translateX(-100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: none;
    }

    .lesson-sidebar--open {
        transform: translateX(0);
        box-shadow: 8px 0 32px rgba(0,0,0,0.5);
    }

    .lesson-sidebar-toggle {
        display: flex;
    }

    .lesson-main {
        padding: 0 16px 60px;
    }

    .lesson-player {
        margin: 0 -16px;
    }

    .lesson-info-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .lesson-toggles {
        flex-direction: column;
        gap: 10px;
    }

    .lesson-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .lesson-tab { white-space: nowrap; padding: 12px 14px; }

    .lesson-nav { flex-direction: column; }
    .lesson-nav__btn { max-width: 100%; }

    .instr__chapter-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .instr__lesson {
        padding-left: 20px;
    }

    .dash__course-card {
        flex-direction: column;
    }

    .dash__course-thumb {
        width: 100%;
        height: 120px;
    }

    .instr__course-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .instr__course-actions {
        width: 100%;
    }

    .wizard__steps {
        gap: 4px;
    }

    .wizard__step-info {
        display: none;
    }

    .wizard__step-line {
        min-width: 12px;
        margin: 0 6px;
    }

    .wizard__summary-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   MEDIA MANAGEMENT UI (lesson editor)
   ============================================ */

.media__item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(130, 170, 255, 0.04);
}

.media__item:last-of-type {
    border-bottom: none;
}

.media__icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.media__icon--video {
    background: rgba(130, 170, 255, 0.08);
    color: var(--accent-blue);
}

.media__icon--file {
    background: rgba(199, 146, 234, 0.08);
    color: var(--accent-purple);
}

.media__info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.media__name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.media__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.media__url {
    opacity: 0.7;
    font-family: var(--font-mono);
    font-size: 11px;
}

.media__badge {
    display: inline-flex;
    padding: 1px 8px;
    border-radius: 100px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.media__badge--youtube {
    background: rgba(255, 83, 112, 0.1);
    color: #ff5370;
}

.media__badge--vimeo {
    background: rgba(130, 170, 255, 0.1);
    color: #82aaff;
}

.media__badge--upload {
    background: rgba(195, 232, 141, 0.1);
    color: #c3e88d;
}

.media__badge--external {
    background: rgba(247, 140, 108, 0.1);
    color: #f78c6c;
}

.media__actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.media__upload-bar {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(130, 170, 255, 0.06);
}

.media__empty {
    font-size: 14px;
}

/* Course attachments in instructor-course */
.course-assets__list {
    display: flex;
    flex-direction: column;
}

@media (max-width: 768px) {
    .media__item {
        flex-wrap: wrap;
        gap: 8px;
    }

    .media__actions {
        width: 100%;
        justify-content: flex-end;
    }

    .media__upload-bar {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ---- File Drop Zone (course assets / lesson attachments) ---- */
/* file-dropzone styles moved to components.css */

/* ---- Course Builder Settings Panel ---- */
.cb__settings-panel {
    margin-bottom: 24px;
    animation: cbSlideIn 0.25s ease;
}

/* ---- Course Builder: Sticky Action Bar ---- */
.cb__action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 20px;
    margin-bottom: 4px;
    background: rgba(10, 16, 32, 0.5);
    border: 1px solid rgba(130, 170, 255, 0.06);
    border-radius: 12px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: sticky;
    top: 81px; /* below site nav (80) + 1px */
    z-index: 50;
}

.cb__action-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    flex: 1;
}

.cb__action-bar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cb__action-bar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* ---- Course Builder: Full-Page Editor ---- */
.cb__section {
    background: rgba(10, 16, 32, 0.4);
    border: 1px solid rgba(130, 170, 255, 0.06);
    border-radius: 12px;
    padding: 24px;
    margin-top: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.cb__section-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 16px;
}

.cb__section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.cb__section-header .cb__section-title {
    margin-bottom: 0;
}

.cb__section-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin: -8px 0 16px;
    line-height: 1.5;
}

/* Two-column: thumbnail + fields */
.cb__details-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 28px;
    align-items: start;
}

.cb__thumb-col {
    display: flex;
    flex-direction: column;
}

.cb__thumb-preview {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 10px;
    overflow: hidden;
    border: 2px dashed rgba(130, 170, 255, 0.12);
    cursor: pointer;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
}

.cb__thumb-preview:hover {
    border-color: rgba(130, 170, 255, 0.3);
}

.cb__thumb-preview--drag {
    border-color: rgba(130, 170, 255, 0.5);
    box-shadow: inset 0 0 24px rgba(130, 170, 255, 0.08);
}

.cb__thumb-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cb__thumb-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 100%;
    color: var(--text-muted);
    font-size: 13px;
}

.cb__thumb-placeholder svg {
    opacity: 0.35;
}

.cb__thumb-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.cb__fields-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Status badge */
.cb__status-badge {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cb__status-badge--draft {
    background: rgba(255, 203, 107, 0.12);
    color: #ffcb6b;
}

.cb__status-badge--published {
    background: rgba(195, 232, 141, 0.12);
    color: #c3e88d;
}

.cb__status-badge--archived {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
}

/* Danger zone */
.cb__danger-zone {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-top: 24px;
    padding: 20px 24px;
    border: 1px solid rgba(255, 83, 112, 0.15);
    border-radius: 12px;
    background: rgba(255, 83, 112, 0.03);
}

.cb__danger-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cb__danger-info strong {
    font-size: 15px;
    color: #ff5370;
}

.cb__danger-info span {
    font-size: 13px;
    color: var(--text-muted);
}

/* Empty state */
.cb__empty-state {
    text-align: center;
    padding: 32px 20px;
    color: var(--text-muted);
    font-size: 14px;
}

.cb__empty-state p {
    margin: 0;
}

/* Danger ghost button */
.btn--danger-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid transparent;
    padding: 4px 8px;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.btn--danger-ghost:hover {
    color: #ff5370;
    background: rgba(255, 83, 112, 0.08);
    border-color: rgba(255, 83, 112, 0.15);
}

/* Responsive: course builder */
@media (max-width: 768px) {
    .cb__action-bar {
        flex-direction: column;
        align-items: flex-start;
        top: 61px; /* 60px mobile nav + 1px */
    }

    .cb__action-bar-right {
        width: 100%;
        justify-content: flex-end;
    }

    .cb__details-grid {
        grid-template-columns: 1fr;
    }

    .cb__thumb-preview {
        max-width: 280px;
    }

    .cb__danger-zone {
        flex-direction: column;
        align-items: flex-start;
    }

    .cb__section {
        padding: 16px;
    }
}

/* ============================================
   SECURE PLAYER (sp__)
   Custom video player with anti-capture measures
   ============================================ */
.sp {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    outline: none;
    /* Anti-capture: prevent text selection */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

.sp__video {
    display: block;
    width: 100%;
    max-height: 75vh;
    background: #000;
    object-fit: contain;
}

/* ── Anti-screenshot shield ─────────────────────── */
/* Multi-layer approach: invisible to human eye but disrupts
   screen capture by forcing compositor fallback */
.sp__shield {
    position: absolute;
    inset: 0;
    z-index: 5;
    pointer-events: none;
    /* Subtle gradient that captures pick up but eyes don't notice */
    background: linear-gradient(
        135deg,
        rgba(255,0,0,0.01) 0%,
        rgba(0,255,0,0.01) 25%,
        rgba(0,0,255,0.01) 50%,
        rgba(255,255,0,0.01) 75%,
        rgba(255,0,255,0.01) 100%
    );
    mix-blend-mode: overlay;
    animation: sp-shield-shift 8s linear infinite;
}
@keyframes sp-shield-shift {
    0%   { background-position: 0% 0%; }
    100% { background-position: 200% 200%; }
}
.sp__shield::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,0,0,0.003) 2px,
        rgba(0,0,0,0.003) 4px
    );
    mix-blend-mode: difference;
}

/* ── Watermark overlay ──────────────────────────── */
.sp__watermark {
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 60px;
    padding: 40px;
    overflow: hidden;
    opacity: 0.06;
    transform: rotate(-25deg) scale(1.4);
}
.sp__watermark span {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* Show watermark more prominently on tab switch / focus loss */
.sp--hidden-tab .sp__watermark,
.sp--focus-lost .sp__watermark {
    opacity: 0;
}
.sp--hidden-tab .sp__video,
.sp--focus-lost .sp__video {
    visibility: hidden !important;
    opacity: 0 !important;
}
.sp--hidden-tab .sp__controls,
.sp--focus-lost .sp__controls,
.sp--hidden-tab .sp__logo,
.sp--focus-lost .sp__logo,
.sp--hidden-tab .sp__settings,
.sp--focus-lost .sp__settings {
    opacity: 0 !important;
    pointer-events: none !important;
}
.sp--hidden-tab::after,
.sp--focus-lost::after {
    content: 'Return to this tab to continue watching';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    background: #000;
    color: rgba(255,255,255,0.5);
    font-size: 16px;
    font-weight: 500;
    pointer-events: none;
}

/* DevTools detected — full blackout */
.sp--protected .sp__video {
    visibility: hidden !important;
    opacity: 0 !important;
}
.sp--protected .sp__controls,
.sp--protected .sp__logo,
.sp--protected .sp__watermark,
.sp--protected .sp__settings {
    opacity: 0 !important;
    pointer-events: none !important;
}
.sp--protected::after {
    content: 'Please close developer tools to continue watching';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 25;
    background: #000;
    color: rgba(255,255,255,0.5);
    font-size: 16px;
    font-weight: 500;
    pointer-events: none;
}

/* ── Loading spinner ────────────────────────────── */
.sp__loader {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    background: rgba(0,0,0,0.6);
}
.sp__spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255,255,255,0.15);
    border-top-color: #82aaff;
    border-radius: 50%;
    animation: spSpin 0.8s linear infinite;
}
@keyframes spSpin {
    to { transform: rotate(360deg); }
}

/* ── Big play button ────────────────────────────── */
.sp__big-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 8;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: none;
    background: rgba(130, 170, 255, 0.2);
    backdrop-filter: blur(8px);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background 0.2s;
}
.sp__big-play:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background: rgba(130, 170, 255, 0.35);
}
.sp--playing .sp__big-play { display: none; }

/* ── Controls bar ───────────────────────────────── */
.sp__controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 12;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    padding: 24px 12px 8px;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.3s, transform 0.3s;
}
.sp__controls--visible,
.sp:hover .sp__controls {
    opacity: 1;
    transform: translateY(0);
}

.sp__controls-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.sp__controls-left,
.sp__controls-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ── Control buttons ────────────────────────────── */
.sp__btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.85);
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, background 0.15s;
}
.sp__btn:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.sp__speed-label {
    font-size: 12px;
    font-weight: 600;
    min-width: 28px;
    text-align: center;
}

.sp__time {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    padding: 0 4px;
}

/* ── Progress bar ───────────────────────────────── */
.sp__progress-wrap {
    position: relative;
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.15);
    border-radius: 2px;
    cursor: pointer;
    margin-bottom: 6px;
    transition: height 0.15s;
}
.sp__progress-wrap:hover {
    height: 6px;
}
.sp__progress-buffer {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    transition: width 0.3s;
}
.sp__progress-played {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: #82aaff;
    border-radius: 2px;
}
.sp__progress-thumb {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #82aaff;
    box-shadow: 0 0 4px rgba(130,170,255,0.5);
    transition: transform 0.15s;
}
.sp__progress-wrap:hover .sp__progress-thumb {
    transform: translate(-50%, -50%) scale(1);
}

/* ── Volume slider ──────────────────────────────── */
.sp__volume-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
}
.sp__volume-slider {
    width: 0;
    opacity: 0;
    transition: width 0.2s, opacity 0.2s;
    -webkit-appearance: none;
    appearance: none;
    height: 3px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    cursor: pointer;
}
.sp__volume-wrap:hover .sp__volume-slider {
    width: 60px;
    opacity: 1;
}
.sp__volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
}

/* ── Error / blocked states ─────────────────────── */
.sp--error { min-height: 200px; }
.sp__error-msg,
.sp__blocked {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ff5370;
    font-size: 14px;
    font-weight: 500;
    z-index: 15;
    background: rgba(0,0,0,0.8);
}
.sp__blocked {
    color: rgba(255,255,255,0.6);
}

.sp__login-required {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    background: rgba(0,0,0,0.4);
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}
.sp__login-required a {
    color: #82aaff;
}

/* ── Security notice flash ──────────────────────── */
.sp__security-notice {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 30;
    background: rgba(255, 83, 112, 0.9);
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    animation: spNotice 3s ease forwards;
    pointer-events: none;
}
@keyframes spNotice {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
    10% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    80% { opacity: 1; }
    100% { opacity: 0; }
}

/* ── Logo overlay (fades with controls) ─────────── */
.sp__logo {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 11;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    filter: drop-shadow(0 1px 3px rgba(0,0,0,0.6));
}
.sp__logo--visible {
    opacity: 0.7;
}
.sp__logo img {
    display: block;
    border-radius: 4px;
}

/* ── Skip indicators (center flash) ────────────── */
.sp__skip-indicator {
    position: absolute;
    top: 50%;
    z-index: 9;
    transform: translateY(-50%) scale(0);
    opacity: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: #fff;
    pointer-events: none;
    transition: opacity 0.15s, transform 0.15s;
}
.sp__skip-indicator--back { left: 15%; }
.sp__skip-indicator--fwd { right: 15%; }
.sp__skip-indicator span {
    font-size: 11px;
    font-weight: 600;
}
.sp__skip-indicator--show {
    opacity: 0.8;
    transform: translateY(-50%) scale(1);
    animation: spSkipPulse 0.6s ease forwards;
}
@keyframes spSkipPulse {
    0% { opacity: 0; transform: translateY(-50%) scale(0.6); }
    30% { opacity: 0.8; transform: translateY(-50%) scale(1.1); }
    100% { opacity: 0; transform: translateY(-50%) scale(1); }
}

/* ── Skip buttons in controls bar ──────────────── */
.sp__btn--skip {
    position: relative;
    gap: 1px;
}
.sp__skip-val {
    font-size: 9px;
    font-weight: 700;
    position: absolute;
    bottom: 2px;
    right: 2px;
    line-height: 1;
    opacity: 0.7;
}

/* ── Settings panel ────────────────────────────── */
.sp__settings {
    position: absolute;
    bottom: 56px;
    right: 8px;
    z-index: 14;
    background: rgba(15, 17, 25, 0.95);
    border: 1px solid rgba(130, 170, 255, 0.12);
    border-radius: 10px;
    padding: 14px 16px;
    min-width: 240px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    opacity: 0;
    transform: translateY(8px) scale(0.96);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.sp__settings--open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
.sp__settings-title {
    font-size: 11px;
    font-weight: 600;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}
.sp__settings-row {
    margin-bottom: 10px;
}
.sp__settings-row:last-child {
    margin-bottom: 0;
}
.sp__settings-label {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 6px;
}
.sp__settings-options {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}
.sp__settings-opt {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 6px;
    color: rgba(255,255,255,0.6);
    font-size: 11px;
    font-weight: 500;
    padding: 4px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.sp__settings-opt:hover {
    background: rgba(130, 170, 255, 0.12);
    color: rgba(255,255,255,0.85);
    border-color: rgba(130, 170, 255, 0.2);
}
.sp__settings-opt--active {
    background: rgba(130, 170, 255, 0.2);
    border-color: rgba(130, 170, 255, 0.4);
    color: #82aaff;
}

/* ── Progress tooltip with thumbnail ───────────── */
.sp__progress-tooltip {
    position: absolute;
    bottom: 14px;
    transform: translateX(-50%);
    background: rgba(10, 12, 20, 0.92);
    border: 1px solid rgba(130, 170, 255, 0.15);
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}
.sp__progress-tooltip--visible {
    opacity: 1;
}
.sp__preview-canvas {
    display: block;
    width: 160px;
    height: 90px;
    background: #000;
    border-radius: 5px 5px 0 0;
}
.sp__preview-time {
    font-size: 11px;
    font-weight: 600;
    color: #fff;
    padding: 3px 8px 4px;
    font-variant-numeric: tabular-nums;
}

/* ── Enhanced theme: gradient glow on progress ── */
.sp__progress-played {
    background: linear-gradient(90deg, #82aaff, #c792ea);
    box-shadow: 0 0 8px rgba(130, 170, 255, 0.3);
}
.sp__progress-thumb {
    background: linear-gradient(135deg, #82aaff, #c792ea);
    box-shadow: 0 0 6px rgba(130, 170, 255, 0.5);
}

/* ── Enhanced big play: glow effect ─────────────── */
.sp__big-play {
    background: rgba(130, 170, 255, 0.15);
    border: 1px solid rgba(130, 170, 255, 0.2);
    box-shadow: 0 0 30px rgba(130, 170, 255, 0.15), inset 0 0 20px rgba(130, 170, 255, 0.05);
}
.sp__big-play:hover {
    background: rgba(130, 170, 255, 0.25);
    border-color: rgba(130, 170, 255, 0.35);
    box-shadow: 0 0 40px rgba(130, 170, 255, 0.25), inset 0 0 25px rgba(130, 170, 255, 0.08);
}

/* ── Controls gradient — deeper for contrast ──── */
.sp__controls {
    background: linear-gradient(transparent 0%, rgba(0,0,0,0.4) 30%, rgba(0,0,0,0.88) 100%);
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 768px) {
    .sp__volume-wrap .sp__volume-slider {
        width: 40px;
        opacity: 1;
    }
    .sp__big-play {
        width: 56px;
        height: 56px;
    }
    .sp__big-play svg {
        width: 32px;
        height: 32px;
    }
    .sp__watermark span {
        font-size: 10px;
    }
    .sp__btn--skip { display: none; }
    .sp__settings { min-width: 200px; right: 4px; }
    .sp__preview-canvas { width: 120px; height: 68px; }
    .sp__logo { top: 8px; right: 8px; }
    .sp__logo img { width: 22px; height: 22px; }
}