/* G Teach — Lesson page redesign (Wave 2, task 7)
   Scope: .lesson-v2 — старые классы (.module, .head, .center-button) не трогаем. */

.lesson-v2 {
    --lv-bg: #F6F8F7;
    --lv-surface: #ffffff;
    --lv-border: #E4ECE9;
    --lv-text: #1A1F1E;
    --lv-muted: #6B7871;
    --lv-accent: var(--color-green, #024A46);
    --lv-accent-lime: var(--color-greenB, #BDF565);
    --lv-success: #0F7A5E;
    --lv-danger: #D94A4A;
    --lv-shadow-sm: 0 1px 2px rgba(15, 23, 21, 0.04), 0 2px 6px rgba(15, 23, 21, 0.04);
    --lv-shadow-md: 0 4px 12px rgba(15, 23, 21, 0.06), 0 12px 40px rgba(15, 23, 21, 0.08);
    --lv-shadow-lg: 0 8px 24px rgba(15, 23, 21, 0.1), 0 24px 60px rgba(15, 23, 21, 0.12);
    --lv-radius: 16px;
    --lv-radius-lg: 24px;

    font-family: 'Inter', 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--lv-text);
    background: var(--lv-bg);
    min-height: calc(100vh - 80px);
    padding: 32px 40px 80px;
    box-sizing: border-box;
}

/* ----- Breadcrumb + header ----- */

.lesson-v2__breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--lv-muted);
    margin-bottom: 20px;
}
.lesson-v2__breadcrumb a {
    color: var(--lv-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}
.lesson-v2__breadcrumb a:hover {
    color: var(--lv-accent);
}
.lesson-v2__breadcrumb-sep {
    opacity: 0.5;
}
.lesson-v2__breadcrumb-current {
    color: var(--lv-text);
}

.lesson-v2__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 32px;
}
.lesson-v2__title {
    font-family: 'Manrope', 'Inter', sans-serif;
    font-weight: 800;
    font-size: 48px;
    line-height: 1.08;
    letter-spacing: -0.02em;
    color: var(--lv-text);
    margin: 0;
    flex: 1;
    word-break: break-word;
}
.lesson-v2__edit-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--lv-surface);
    color: var(--lv-text);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--lv-border);
    box-shadow: var(--lv-shadow-sm);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    white-space: nowrap;
    flex-shrink: 0;
}
.lesson-v2__edit-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--lv-shadow-md);
    color: var(--lv-text);
}
.lesson-v2__edit-btn img {
    width: 14px;
    height: 14px;
    opacity: 0.7;
}

/* ----- Two-column layout ----- */

.lesson-v2__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 32px;
    align-items: flex-start;
}

@media (max-width: 1100px) {
    .lesson-v2__layout {
        grid-template-columns: 1fr;
    }
    .lesson-v2__aside {
        position: static !important;
    }
}

@media (max-width: 720px) {
    .lesson-v2 {
        padding: 20px 16px 60px;
    }
    .lesson-v2__title {
        font-size: 32px;
    }
    .lesson-v2__header {
        flex-direction: column;
    }
}

.lesson-v2__main {
    min-width: 0;
}

.lesson-v2__content-card {
    background: var(--lv-surface);
    border-radius: var(--lv-radius-lg);
    padding: 32px 36px;
    box-shadow: var(--lv-shadow-md);
    border: 1px solid var(--lv-border);
}
.lesson-v2__content-card + .lesson-v2__content-card {
    margin-top: 20px;
}

/* Media (video, image) внутри .lesson-v2 — скругление и тень */
.lesson-v2__main video,
.lesson-v2__main iframe,
.lesson-v2__main img,
.lesson-v2__content-card video,
.lesson-v2__content-card iframe,
.lesson-v2__content-card img {
    border-radius: var(--lv-radius);
    max-width: 100%;
}

/* ----- Sidebar ----- */

.lesson-v2__aside {
    position: sticky;
    top: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.lesson-v2__card {
    background: var(--lv-surface);
    border: 1px solid var(--lv-border);
    border-radius: var(--lv-radius-lg);
    padding: 24px;
    box-shadow: var(--lv-shadow-sm);
}

.lesson-v2__card-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--lv-muted);
    margin-bottom: 12px;
}

.lesson-v2__progress {
    height: 8px;
    background: var(--color-greyF, #F3F7F6);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 10px;
}
.lesson-v2__progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--lv-accent), var(--lv-accent-lime));
    border-radius: 999px;
    transition: width 0.4s ease;
}
.lesson-v2__progress-text {
    font-size: 13px;
    color: var(--lv-muted);
    font-weight: 500;
}

.lesson-v2__meta {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.lesson-v2__meta-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--lv-border);
}
.lesson-v2__meta-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.lesson-v2__meta-key {
    font-size: 13px;
    color: var(--lv-muted);
    font-weight: 500;
}
.lesson-v2__meta-val {
    font-size: 14px;
    color: var(--lv-text);
    font-weight: 600;
    text-align: right;
}

/* ----- CTA ----- */

.lesson-v2__cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 24px;
    font-family: 'Manrope', 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 700;
    border-radius: 14px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.15s ease;
    box-sizing: border-box;
}
.lesson-v2__cta--primary {
    background: var(--lv-accent);
    color: var(--lv-accent-lime);
    box-shadow: 0 8px 20px rgba(2, 74, 70, 0.25);
}
.lesson-v2__cta--primary:hover {
    transform: translateY(-2px);
    background: #036357;
    color: var(--lv-accent-lime);
    box-shadow: 0 12px 28px rgba(2, 74, 70, 0.35);
}
.lesson-v2__cta--secondary {
    background: var(--lv-accent-lime);
    color: var(--lv-accent);
    box-shadow: 0 6px 16px rgba(189, 245, 101, 0.4);
}
.lesson-v2__cta--secondary:hover {
    transform: translateY(-2px);
    background: #CFF87D;
    color: var(--lv-accent);
    box-shadow: 0 10px 24px rgba(189, 245, 101, 0.55);
}
.lesson-v2__cta--ghost {
    background: transparent;
    color: var(--lv-accent);
    border: 1.5px solid var(--lv-border);
}
.lesson-v2__cta--ghost:hover {
    background: var(--color-greyF, #F3F7F6);
    color: var(--lv-accent);
}
.lesson-v2__cta-arrow {
    display: inline-block;
    transition: transform 0.15s ease;
}
.lesson-v2__cta:hover .lesson-v2__cta-arrow {
    transform: translateX(4px);
}

/* ----- Back link (breadcrumb replacement for old button-back) ----- */

.lesson-v2__back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--lv-muted);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.15s ease, transform 0.15s ease;
}
.lesson-v2__back:hover {
    color: var(--lv-accent);
    transform: translateX(-2px);
}

/* ----- Success / status cards ----- */

.lesson-v2__success {
    background: linear-gradient(135deg, rgba(189, 245, 101, 0.2), rgba(2, 74, 70, 0.06));
    border: 1.5px solid var(--lv-accent-lime);
    border-radius: var(--lv-radius);
    padding: 20px 24px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
}
.lesson-v2__success-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--lv-accent);
    color: var(--lv-accent-lime);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 20px;
    font-weight: 700;
}
.lesson-v2__success-text {
    flex: 1;
}
.lesson-v2__success-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--lv-text);
    margin-bottom: 4px;
}
.lesson-v2__success-subtitle {
    font-size: 14px;
    color: var(--lv-muted);
}

.lesson-v2__review-card {
    background: var(--lv-surface);
    border: 1px solid var(--lv-border);
    border-radius: var(--lv-radius);
    padding: 20px 24px;
    margin-top: 16px;
}
.lesson-v2__review-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--lv-muted);
    margin-bottom: 8px;
}
.lesson-v2__review-grade {
    font-family: 'Manrope', sans-serif;
    font-size: 28px;
    font-weight: 800;
    color: var(--lv-accent);
    margin-bottom: 12px;
}
.lesson-v2__review-comment {
    font-size: 15px;
    line-height: 1.55;
    color: var(--lv-text);
    padding: 14px 16px;
    background: var(--color-greyF, #F3F7F6);
    border-radius: 10px;
}

/* ----- Task block styling ----- */

.lesson-v2__task-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.lesson-v2__record-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 12px 20px;
    background: var(--lv-accent);
    color: #fff;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.2s;
}
.lesson-v2__record-cta:hover {
    opacity: 0.9;
    color: #fff;
}
.lesson-v2__task-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--lv-accent-lime);
    color: var(--lv-accent);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.lesson-v2__task-type {
    font-size: 14px;
    color: var(--lv-muted);
    font-weight: 500;
}

/* Blade-inherited content inside canvas — smooth typography */
.lesson-v2__content-card .section__text {
    font-size: 16px;
    line-height: 1.65;
    color: var(--lv-text);
}
.lesson-v2__content-card .section__text h1,
.lesson-v2__content-card .section__text h2,
.lesson-v2__content-card .section__text h3 {
    font-family: 'Manrope', sans-serif;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}
.lesson-v2__content-card .section__text img {
    border-radius: var(--lv-radius);
    margin: 1em 0;
}

/* Override: убираем абсолютную позицию старых .module__bottom если вдруг доедет */
.lesson-v2 .module__bottom {
    position: static !important;
    top: auto !important;
}