/* Course details — mobile LMS (Coursera / Udemy) */

.page-course-detail .cd-back {
    margin: 0 0 10px;
    font-size: 0.82rem;
}

.page-course-detail .cd-back a {
    color: #94a3b8;
    text-decoration: none;
}

.page-course-detail .cd-back a:hover {
    color: #6ee7b7;
}

.page-course-detail .player-shell {
    margin: 0;
    padding: 0;
    max-width: none;
}

.page-course-detail .player-card {
    border-radius: 16px;
}

.page-course-detail .player-poster {
    position: absolute;
    inset: 0;
    z-index: 3;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    transition: opacity 0.28s ease, visibility 0.28s ease;
}

.page-course-detail .player-poster.is-off {
    opacity: 0;
    visibility: hidden;
}

.page-course-detail .player-grad {
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
    background: linear-gradient(180deg, rgb(2 6 23 / 0.15) 0%, rgb(2 6 23 / 0.35) 42%, rgb(2 6 23 / 0.88) 100%);
}

.page-course-detail .player-poster.is-off + .player-grad,
.page-course-detail .player-stage:has(.player-poster.is-off) .player-grad {
    opacity: 0;
}

.page-course-detail #videoOverlay,
.page-course-detail .player-overlay {
    z-index: 6;
    background: transparent;
    gap: 10px;
    padding: 16px 16px 20px;
    justify-content: center;
}

.page-course-detail .player-play-btn {
    width: 72px;
    height: 72px;
    border-radius: 999px;
    background: rgb(16 185 129 / 0.28);
    color: #ecfdf5;
    border: 1px solid rgb(52 211 153 / 0.45);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 12px 32px rgb(16 185 129 / 0.28), inset 0 1px 0 rgb(255 255 255 / 0.18);
}

.page-course-detail .player-play-btn:hover {
    background: rgb(16 185 129 / 0.45);
    transform: scale(1.06);
}

.page-course-detail .player-overlay p {
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #e2e8f0;
    text-shadow: 0 2px 12px rgb(2 6 23 / 0.8);
}

.page-course-detail .player-overlay span {
    color: #cbd5e1;
    font-size: 0.8rem;
    max-width: 90%;
    text-align: center;
}

.page-course-detail .detail-intro {
    display: grid;
    gap: 10px;
}

.page-course-detail .detail-intro-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.page-course-detail .detail-intro h1 {
    margin: 0;
    font-size: clamp(1.28rem, 4.4vw, 1.85rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.page-course-detail .detail-intro .lede {
    margin: 0;
    color: #94a3b8;
    font-size: 0.92rem;
    line-height: 1.45;
}

.page-course-detail .description-content,
.page-course-detail .prose {
    max-width: none;
    color: #cbd5e1;
    font-size: 0.95rem;
    line-height: 1.65;
}

.page-course-detail .detail-intro .description-content {
    margin-top: 12px;
}

.page-course-detail .prose p {
    margin: 0 0 0.9em;
}

.page-course-detail .prose p:last-child {
    margin-bottom: 0;
}

.page-course-detail .prose h2,
.page-course-detail .prose h3,
.page-course-detail .prose h4 {
    margin: 1.1em 0 0.45em;
    color: #f8fafc;
    font-weight: 750;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.page-course-detail .prose h2 { font-size: 1.15rem; }
.page-course-detail .prose h3 { font-size: 1.05rem; }
.page-course-detail .prose h4 { font-size: 1rem; }

.page-course-detail .prose ul,
.page-course-detail .prose ol {
    margin: 0 0 0.9em;
    padding-left: 1.35rem;
}

.page-course-detail .prose li {
    margin: 0.25em 0;
}

.page-course-detail .prose li::marker {
    color: #34d399;
}

.page-course-detail .prose a {
    color: #34d399;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.page-course-detail .prose strong,
.page-course-detail .prose b {
    color: #f8fafc;
    font-weight: 700;
}

.page-course-detail .prose blockquote {
    margin: 0 0 0.9em;
    padding: 0.4em 0 0.4em 0.9em;
    border-left: 3px solid #10b981;
    color: #94a3b8;
}

.page-course-detail .cd-mod-desc {
    margin: 10px 14px 4px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(30, 41, 59, 0.9);
}

.page-course-detail .cd-meta {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
}

.page-course-detail .cd-meta li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #cbd5e1;
    font-size: 0.78rem;
    font-weight: 600;
}

.page-course-detail .cd-meta svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.page-course-detail .cd-meta .cd-star {
    color: #fbbf24;
}

.page-course-detail .syllabus-mod {
    border: 1px solid #1e293b;
    border-radius: 16px;
    background: rgb(15 23 42 / 0.55);
    overflow: hidden;
    margin-top: 10px;
}

.page-course-detail .syllabus-mod summary {
    display: grid;
    grid-template-columns: 1fr auto auto;
    grid-template-areas:
        "kicker kicker chev"
        "title dur chev";
    column-gap: 10px;
    row-gap: 2px;
    align-items: center;
    padding: 14px 16px;
    background: rgb(30 41 59 / 0.4);
    transition: background 0.15s ease;
}

.page-course-detail .syllabus-mod summary:hover {
    background: rgb(30 41 59 / 0.8);
}

.page-course-detail .cd-mod-kicker {
    grid-area: kicker;
    font-size: 0.7rem;
    font-weight: 700;
    color: #34d399;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.page-course-detail .cd-mod-title {
    grid-area: title;
    font-size: 0.9rem;
    font-weight: 700;
    color: #f1f5f9;
}

.page-course-detail .cd-mod-dur {
    grid-area: dur;
    font-size: 0.72rem;
    color: #94a3b8;
    white-space: nowrap;
}

.page-course-detail .cd-chevron {
    grid-area: chev;
    width: 18px;
    height: 18px;
    color: #94a3b8;
    transition: transform 0.2s ease;
}

.page-course-detail .syllabus-mod[open] .cd-chevron {
    transform: rotate(180deg);
}

.page-course-detail .syllabus-lessons {
    padding: 10px 12px 12px;
    border-top: 1px solid rgb(30 41 59 / 0.6);
    gap: 8px;
}

.page-course-detail .lesson-row {
    border-radius: 12px;
    background: rgb(30 41 59 / 0.3);
    border: 1px solid #1e293b;
    padding: 10px 12px;
    text-decoration: none;
    color: inherit;
    box-sizing: border-box;
}

.page-course-detail a.lesson-row.is-current {
    border-color: rgb(16 185 129 / 0.55);
    background: rgb(16 185 129 / 0.08);
}

.page-course-detail div.lesson-row.is-lock {
    cursor: default;
}

.page-course-detail .lesson-ico {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: #34d399;
}

.page-course-detail .lesson-row.is-lock .lesson-ico {
    color: #64748b;
}

.page-course-detail .cd-preview {
    font-size: 10px;
    line-height: 1.2;
    padding: 3px 8px;
    border-radius: 999px;
    font-weight: 650;
    background: rgb(16 185 129 / 0.1);
    color: #34d399;
    border: 1px solid rgb(16 185 129 / 0.3);
    white-space: nowrap;
}

.page-course-detail .cd-split {
    display: grid;
    gap: 12px;
}

.page-course-detail .cd-checks {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.page-course-detail .cd-checks li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #cbd5e1;
    font-size: 0.86rem;
    line-height: 1.4;
}

.page-course-detail .cd-checks svg {
    width: 16px;
    height: 16px;
    margin-top: 2px;
    flex-shrink: 0;
    color: #34d399;
}

.page-course-detail .cd-instructor {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.page-course-detail .cd-instructor-av {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    overflow: hidden;
    flex-shrink: 0;
    background: linear-gradient(145deg, #064e3b, #0f172a);
    border: 1px solid rgb(16 185 129 / 0.35);
    display: grid;
    place-items: center;
}

.page-course-detail .cd-instructor-av img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-course-detail .cd-instructor-av span {
    font-weight: 800;
    color: #6ee7b7;
    font-size: 0.95rem;
}

.page-course-detail .instructor-name {
    margin: 0 0 4px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-weight: 800;
}

.page-course-detail .cd-verified {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 999px;
    background: rgb(16 185 129 / 0.12);
    color: #6ee7b7;
    border: 1px solid rgb(16 185 129 / 0.3);
}

.page-course-detail .buy-card .btn-engine,
.page-course-detail .enroll-modal .btn-engine {
    background: #059669;
    box-shadow: 0 10px 22px rgb(5 150 105 / 0.28);
}

.page-course-detail .buy-card .btn-engine:hover,
.page-course-detail .enroll-modal .btn-engine:hover {
    background: #10b981;
}

.page-course-detail .cd-access {
    margin: 10px 0 0;
    font-size: 0.8rem;
    font-weight: 650;
    color: #6ee7b7;
}

.page-course-detail .cd-pay-wait {
    margin: 0 0 12px;
    padding: 12px 14px;
    border-radius: 12px;
    background: rgb(245 158 11 / 0.12);
    border: 1px solid rgb(245 158 11 / 0.35);
    color: #fde68a;
    font-size: 0.86rem;
    line-height: 1.45;
}

.page-course-detail .cd-pay-wait p {
    margin: 0;
}

.page-course-detail .player-stage .plyr,
.page-course-detail .player-stage .plyr__controls {
    z-index: 2;
}

.page-course-detail .player-seek,
.page-course-detail .player-seek-flash {
    position: absolute;
    top: 50%;
    z-index: 6;
    width: 4.5rem;
    height: 4.5rem;
    margin: 0;
    padding: 0;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-50%) scale(1);
    transition: opacity 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.page-course-detail .player-seek svg,
.page-course-detail .player-seek-flash svg {
    width: 2.4rem;
    height: 2.4rem;
    display: block;
}

.page-course-detail .player-seek-back,
.page-course-detail .player-seek-flash.is-left {
    left: 12%;
}

.page-course-detail .player-seek-fwd,
.page-course-detail .player-seek-flash.is-right {
    right: 12%;
}

@media (hover: hover) and (pointer: fine) {
    .page-course-detail .player-stage.is-hovered .player-seek,
    .page-course-detail .player-stage:hover .player-seek {
        opacity: 1;
        pointer-events: auto;
    }
}

.page-course-detail .player-stage.is-paused .player-seek {
    opacity: 1;
    pointer-events: auto;
}

.page-course-detail .player-stage:not(:has(.player-overlay.is-off)) .player-seek {
    opacity: 0;
    pointer-events: none;
}

.page-course-detail .player-seek:hover,
.page-course-detail .player-seek:focus-visible {
    background: rgba(0, 0, 0, 0.6);
    transform: translateY(-50%) scale(1.1);
    outline: none;
}

.page-course-detail .player-seek.is-pulse {
    animation: qma-seek-btn 0.6s ease;
}

.page-course-detail .player-seek-flash {
    z-index: 7;
    cursor: default;
}

.page-course-detail .player-seek-flash.is-on {
    animation: qma-seek-pop 0.6s ease forwards;
}

@keyframes qma-seek-btn {
    0% { transform: translateY(-50%) scale(1); }
    40% { transform: translateY(-50%) scale(1.25); }
    100% { transform: translateY(-50%) scale(1); }
}

@keyframes qma-seek-pop {
    0% { opacity: 0; transform: translateY(-50%) scale(0.92); }
    35% { opacity: 1; transform: translateY(-50%) scale(1.25); }
    100% { opacity: 0; transform: translateY(-50%) scale(1); }
}

.page-course-detail .player-seek-mini {
    color: #fff;
}

.page-course-detail .player-seek-mini svg {
    width: 1.15rem;
    height: 1.15rem;
    display: block;
}

.page-course-detail .plyr.plyr--fullscreen-fallback,
.page-course-detail .plyr--fullscreen-active {
    z-index: 35 !important;
}

.page-course-detail .cd-pay-note,
.page-course-detail .cd-pay-warn {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    line-height: 1.4;
}

.page-course-detail .cd-pay-note {
    background: rgb(16 185 129 / 0.08);
    border: 1px solid rgb(16 185 129 / 0.22);
    color: #a7f3d0;
}

.page-course-detail .cd-pay-warn {
    background: rgb(245 158 11 / 0.1);
    border: 1px solid rgb(245 158 11 / 0.3);
    color: #fde68a;
}

.page-course-detail .cd-pay-note p,
.page-course-detail .cd-pay-warn p {
    margin: 0;
}

.page-course-detail .cd-sticky {
    display: none;
}

@media (max-width: 767px) {
    .page-course-detail.has-cd-sticky .main {
        padding-bottom: calc(6rem + 88px + var(--bottom-nav-h, 4rem));
    }

    .page-course-detail .player-card {
        border-radius: 0;
        margin-inline: -16px;
        width: calc(100% + 32px);
        max-width: none;
        border-left: 0;
        border-right: 0;
    }

    .page-course-detail .player-stage {
        border-radius: 0;
        border-left: 0;
        border-right: 0;
    }

    .page-course-detail .cd-sticky {
        display: flex;
        position: fixed;
        left: 0;
        right: 0;
        bottom: calc(64px + env(safe-area-inset-bottom, 0px));
        z-index: 35;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 12px 14px;
        background: rgb(15 23 42 / 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-top: 1px solid #1e293b;
    }

    .page-course-detail .cd-sticky span {
        display: block;
        font-size: 0.7rem;
        color: #94a3b8;
    }

    .page-course-detail .cd-sticky strong {
        display: block;
        font-size: 1rem;
        color: #f1f5f9;
        font-weight: 800;
    }

    .page-course-detail .cd-sticky small {
        font-size: 0.72rem;
        font-weight: 500;
        color: #94a3b8;
    }

    .page-course-detail .cd-sticky form {
        margin: 0;
        flex-shrink: 0;
    }

    .page-course-detail .cd-sticky button,
    .page-course-detail .cd-sticky a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 10px 18px;
        border: 0;
        border-radius: 12px;
        background: #059669;
        color: #fff;
        font: inherit;
        font-size: 0.86rem;
        font-weight: 700;
        text-decoration: none;
        box-shadow: 0 10px 22px rgb(5 150 105 / 0.32);
        cursor: pointer;
        white-space: nowrap;
    }

    .page-course-detail .cd-sticky button:hover,
    .page-course-detail .cd-sticky a:hover {
        background: #10b981;
    }
}

@media (min-width: 760px) {
    .page-course-detail .cd-split {
        grid-template-columns: 1fr 1fr;
        align-items: stretch;
    }
}

@media (min-width: 768px) {
    .page-course-detail .cd-sticky {
        display: none !important;
    }
}