/* ===== Course page — DB-driven layout ===== */
.v2-body--course {
    background: var(--v2-bg);
    padding-bottom: 96px;
}

.v2-course-page {
    padding: 28px 32px 40px;
}

.v2-course-layout {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.v2-course-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
    gap: 20px;
    align-items: start;
}

.v2-course-grid--single {
    grid-template-columns: 1fr;
}

.v2-course-grid__main,
.v2-course-grid__aside {
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-width: 0;
}

@media (min-width: 901px) {
    .v2-course-grid:not(.v2-course-grid--single) .v2-course-grid__aside {
        position: sticky;
        top: 20px;
    }
}

.v2-course-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--v2-text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: color var(--v2-dur) var(--v2-ease);
}

.v2-course-back:hover { color: var(--v2-purple); }

.v2-course-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
    gap: 28px;
    align-items: start;
    background: var(--v2-surface);
    border: 1px solid var(--v2-border);
    border-radius: 24px;
    padding: 28px;
}

.v2-course-hero__content {
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-width: 0;
}

.v2-course-new {
    align-self: flex-start;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
}

.v2-course-title {
    margin: 0;
    font-size: clamp(22px, 3vw, 36px);
    line-height: 1.35;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--v2-text);
    word-break: break-word;
}

.v2-course-hero__facts {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--v2-text-muted);
    font-size: 15px;
    line-height: 1.45;
}

.v2-course-hero__facts a {
    color: var(--v2-text);
    text-decoration: none;
    font-weight: 600;
}

.v2-course-hero__facts a:hover { color: var(--v2-purple); }

.v2-course-hero__price {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}

.v2-course-hero__price strong {
    font-size: 28px;
    font-weight: 800;
    color: var(--v2-text);
    letter-spacing: -0.02em;
}

.v2-course-hero__price span {
    font-size: 14px;
    color: var(--v2-text-muted);
    font-weight: 500;
}

.v2-course-hero__price--free strong {
    color: #15803d;
}

.v2-course-hero__actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.v2-course-enroll-help {
    margin: 12px 0 0;
    font-size: 0.875rem;
    color: var(--v2-text-muted, rgba(15, 23, 42, 0.65));
}

.v2-course-enroll-help a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.v2-course-enroll-help a:hover {
    color: var(--v2-purple);
}

.v2-course-hero__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 180px;
    padding: 14px 24px;
    border-radius: 14px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    transition: transform var(--v2-dur) var(--v2-ease), box-shadow var(--v2-dur) var(--v2-ease);
}

.v2-course-hero__btn:hover { transform: translateY(-1px); }

.v2-course-hero__media {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--v2-border);
    background: #f8fafc;
}

.v2-course-hero__photo {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 24px;
    -webkit-user-drag: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    pointer-events: none;
}

.v2-course-hero__photo--placeholder {
    background: linear-gradient(145deg, #c4b5fd 0%, #8b7cf8 100%);
}

.v2-course-hero__media[style*="--cat-color"] .v2-course-hero__photo--placeholder {
    background: linear-gradient(145deg, color-mix(in srgb, var(--cat-color) 42%, #fff) 0%, var(--cat-color) 100%);
}

.v2-course-section {
    background: var(--v2-surface);
    border: 1px solid var(--v2-border);
    border-radius: 20px;
    padding: 24px 26px;
}

.v2-course-section__title {
    margin: 0 0 16px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--v2-text);
}

.v2-course-spec {
    margin: 0;
    display: grid;
    gap: 0;
}

.v2-course-spec__row {
    display: grid;
    grid-template-columns: minmax(120px, 160px) 1fr;
    gap: 12px 16px;
    padding: 10px 0;
    border-bottom: 1px solid #f0f2f6;
    font-size: 15px;
    line-height: 1.45;
}

.v2-course-spec__row:last-child { border-bottom: none; }

.v2-course-spec dt {
    margin: 0;
    color: var(--v2-text-muted);
    font-weight: 500;
}

.v2-course-spec dd {
    margin: 0;
    color: var(--v2-text);
    font-weight: 600;
}

.v2-course-spec dd a {
    color: var(--v2-text);
    text-decoration: none;
}

.v2-course-spec dd a:hover {
    color: var(--v2-purple);
    text-decoration: underline;
}

.v2-course-prose {
    font-size: 15px;
    line-height: 1.7;
    color: var(--v2-text);
}

.v2-course-muted {
    margin: 12px 0 0;
    font-size: 14px;
    color: var(--v2-text-muted);
}

.v2-course-price-note {
    margin: 0;
    font-size: 13px;
    line-height: 1.45;
    color: var(--v2-text-muted);
}

.v2-course-price-note--hero {
    margin: -2px 0 10px;
    max-width: 34rem;
}

.v2-course-section--price .v2-course-price-note {
    margin-top: 2px;
}

.v2-course-schedule-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.v2-course-schedule-list__item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid #edf0f5;
    font-size: 14px;
    transition: transform var(--v2-dur) var(--v2-ease), border-color var(--v2-dur) var(--v2-ease);
}

.v2-course-schedule-list__item:hover {
    transform: translateY(-1px);
    border-color: #dde3ee;
}

.v2-course-schedule-list__day {
    font-weight: 700;
    color: var(--v2-text);
}

.v2-course-schedule-list__time {
    color: var(--v2-text-muted);
    font-weight: 600;
}

.v2-course-section--price {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.v2-course-price-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.v2-course-price-card__main {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}

.v2-course-price-card__main strong {
    font-size: 34px;
    font-weight: 800;
    color: var(--v2-text);
    letter-spacing: -0.03em;
}

.v2-course-price-card__main span,
.v2-course-price-card__sub span {
    font-size: 15px;
    color: var(--v2-text-muted);
    font-weight: 500;
}

.v2-course-price-card__sub {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}

.v2-course-price-card__sub strong {
    font-size: 22px;
    font-weight: 700;
    color: var(--v2-text);
}

.v2-course-price-card__sub--solo strong {
    font-size: 34px;
    font-weight: 800;
}

.v2-course-places__text {
    margin: 0 0 12px;
    font-size: 16px;
    color: var(--v2-text);
}

.v2-course-places__text strong {
    font-weight: 800;
    color: var(--v2-purple);
}

.v2-course-places__bar {
    height: 8px;
    border-radius: 999px;
    background: #eef2f7;
    overflow: hidden;
}

.v2-course-places__bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--v2-accent-from), var(--v2-accent-to));
    transition: width var(--v2-dur) var(--v2-ease);
}

.v2-course-reviews {
    background: var(--v2-surface);
    border: 1px solid var(--v2-border);
    border-radius: 20px;
    padding: 24px 26px;
}

.v2-course-reviews + .v2-course-reviews {
    margin-top: 18px;
}

.v2-course-reviews__header {
    margin-bottom: 18px;
}

.v2-course-reviews__title {
    margin: 0 0 6px;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.v2-course-reviews__subtitle {
    margin: 0;
    color: var(--v2-text-muted);
    font-size: 15px;
}

.v2-course-reviews__list {
    display: grid;
    gap: 14px;
}

.v2-course-reviews__list--carousel {
    display: block;
}

.v2-reviews-carousel {
    position: relative;
}

.v2-reviews-carousel__viewport {
    position: relative;
    overflow: hidden;
    transition: height 0.35s ease;
}

.v2-reviews-carousel__track {
    position: relative;
}

.v2-reviews-carousel__slide {
    width: 100%;
    animation: v2ReviewSlideIn 0.35s ease;
}

@keyframes v2ReviewSlideIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .v2-reviews-carousel__viewport {
        transition: none;
    }

    .v2-reviews-carousel__slide {
        animation: none;
    }
}

.v2-reviews-carousel__slide[hidden] {
    display: none;
}

.v2-reviews-carousel__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.v2-reviews-carousel__btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--v2-border);
    border-radius: 12px;
    background: #fff;
    color: var(--v2-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
    flex-shrink: 0;
}

.v2-reviews-carousel__btn:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
}

.v2-reviews-carousel__btn:active {
    transform: scale(0.96);
}

.v2-reviews-carousel__btn:focus-visible {
    outline: 2px solid var(--v2-purple);
    outline-offset: 2px;
}

.v2-lucide--carousel {
    width: 18px;
    height: 18px;
}

.v2-reviews-carousel__dots {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.v2-reviews-carousel__dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: #cbd5e1;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.v2-reviews-carousel__dot.is-active {
    background: var(--v2-purple);
    transform: scale(1.15);
}

.v2-reviews-carousel__dot:focus-visible {
    outline: 2px solid var(--v2-purple);
    outline-offset: 2px;
}

.v2-course-review {
    padding: 18px 20px;
    border-radius: 16px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid var(--v2-border);
}

.v2-course-review__top {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 12px;
}

.v2-course-review__author-wrap {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    min-width: 0;
}

.v2-course-review__avatar {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: #eef2ff;
    color: var(--v2-purple);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.v2-lucide--review {
    width: 18px;
    height: 18px;
}

.v2-course-review__author {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--v2-text);
}

.v2-course-review__teacher {
    display: block;
    margin-top: 2px;
    font-size: 13px;
    color: var(--v2-text-muted);
}

.v2-course-reviews__stars {
    display: inline-flex;
    gap: 2px;
    flex-shrink: 0;
}

.v2-course-reviews__star {
    color: #d1d5db;
    font-size: 16px;
    line-height: 1;
}

.v2-course-reviews__star.is-filled {
    color: #f59e0b;
}

.v2-course-review__text {
    margin: 0;
    font-size: 15px;
    line-height: 1.65;
    color: var(--v2-text);
}

@media (max-width: 768px) {
    .v2-course-reviews {
        padding: 18px 16px;
    }

    .v2-course-review__top {
        flex-direction: column;
    }
}

.v2-course-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 120;
    border-top: 1px solid var(--v2-glass-border);
    padding: 12px 24px calc(12px + env(safe-area-inset-bottom));
    box-shadow: 0 -8px 32px rgba(17, 24, 39, 0.08);
}

.v2-course-bar__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.v2-course-bar__price {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 6px 10px;
    min-width: 0;
}

.v2-course-bar__price strong {
    font-size: 22px;
    font-weight: 800;
    color: var(--v2-text);
    letter-spacing: -0.02em;
}

.v2-course-bar__sub {
    font-size: 14px;
    color: var(--v2-text-muted);
    font-weight: 500;
}

.v2-course-bar__hint {
    width: 100%;
    font-size: 13px;
    color: var(--v2-text-muted);
}

.v2-course-bar__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.v2-course-bar__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 22px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
    transition: transform var(--v2-dur) var(--v2-ease);
}

.v2-course-bar__btn:hover { transform: translateY(-1px); }

.v2-course-bar__btn--outline {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.72));
    backdrop-filter: blur(var(--v2-glass-blur-xs)) saturate(var(--v2-glass-saturate));
    -webkit-backdrop-filter: blur(var(--v2-glass-blur-xs)) saturate(var(--v2-glass-saturate));
    color: var(--v2-purple);
    border: 1px solid rgba(91, 91, 247, 0.35);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.v2-course-bar__btn--outline:hover {
    background: linear-gradient(145deg, rgba(238, 242, 255, 0.95), rgba(255, 255, 255, 0.82));
}

@media (max-width: 900px) {
    .v2-course-hero {
        grid-template-columns: 1fr;
    }

    .v2-course-grid {
        grid-template-columns: 1fr;
    }

    .v2-course-grid__aside {
        position: static;
    }

    .v2-course-spec__row,
    .v2-course-schedule-list__item {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}

@media (max-width: 768px) {
    .v2-course-page {
        padding: 20px 16px 32px;
    }

    .v2-course-hero,
    .v2-course-section {
        padding: 20px;
        border-radius: 18px;
    }

    .v2-course-bar__inner {
        flex-direction: column;
        align-items: stretch;
    }

    .v2-course-bar__actions {
        flex-direction: column;
        width: 100%;
    }

    .v2-course-bar__btn,
    .v2-course-hero__btn {
        width: 100%;
    }

    .v2-body--course {
        padding-bottom: calc(156px + env(safe-area-inset-bottom));
    }

    .v2-course-share__menu {
        left: 0;
        right: 0;
        min-width: 0;
    }
}

/* ===== Related courses ===== */
.v2-course-related {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.v2-course-related__head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.v2-course-related__title {
    margin: 0 0 6px;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.v2-course-related__subtitle {
    margin: 0;
    font-size: 14px;
    color: var(--v2-text-muted);
    line-height: 1.5;
}

.v2-course-related__all {
    font-size: 14px;
    font-weight: 700;
    color: var(--v2-purple);
    text-decoration: none;
    white-space: nowrap;
}

.v2-course-related__all:hover {
    text-decoration: underline;
}

.v2-cards-grid--related {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 900px) {
    .v2-cards-grid--related {
        grid-template-columns: 1fr;
    }
}

/* ===== Share ===== */
.v2-course-share {
    position: relative;
    display: inline-flex;
}

.v2-course-share--bar {
    width: auto;
}

.v2-course-share__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.v2-course-share__toggle .v2-lucide {
    width: 16px;
    height: 16px;
}

.v2-course-share__menu {
    position: absolute;
    right: 0;
    bottom: calc(100% + 8px);
    z-index: 30;
    min-width: 220px;
    padding: 8px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--v2-border);
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.14);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.v2-course-share--bar .v2-course-share__menu {
    bottom: calc(100% + 10px);
}

.v2-course-share__item {
    display: block;
    width: 100%;
    padding: 10px 12px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--v2-text);
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}

.v2-course-share__item:hover {
    background: rgba(91, 91, 247, 0.08);
    color: var(--v2-purple);
}