/* ============================================
 *  WORD/GESTURE DETAIL PAGE
 *  ============================================ */

.word-layout {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Main content row: left column (header+tabs) + right column (video) */
.word-content-row {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 2rem;
    align-items: start;
}

/* Left column - header, tabs and content */
.word-left-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-width: 0;
}

/* Header - now inside left column */
.word-header {
    margin-bottom: 0;
}

.word-header__title-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.word-header__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.2;
}

/* Tabs navigation - horizontal browser-style tabs */
.content-tabs__nav {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    border-bottom: 2px solid var(--d-border);
    padding-bottom: 0.5rem;
}

.content-tabs__btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--d-text-secondary);
    background: none;
    border: none;
    border-radius: var(--d-radius) var(--d-radius) 0 0;
    cursor: pointer;
    transition: all var(--d-transition);
    position: relative;
    margin-bottom: -0.5rem;
}

.content-tabs__btn:hover {
    color: var(--d-primary);
    background: var(--d-bg-elevated);
}

.content-tabs__btn--active {
    color: var(--d-primary);
    background: var(--d-bg-card);
}

.content-tabs__btn--active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--d-primary);
}

/* Tab panels viewport and track */
.content-tabs__viewport {
    overflow: hidden;
    position: relative;
    min-height: 400px;
}

.content-tabs__track {
    display: flex;
    position: relative;
}

.tab-panel {
    width: 100%;
    flex-shrink: 0;
    opacity: 0;
    display: none;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-panel.active {
    opacity: 1;
    display: block;
    transform: translateX(0);
}

/* Right column - actions + video, aligned with header */
.word-video-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: sticky;
    top: calc(var(--d-header-height) + 2rem);
}

/* Action buttons row */
.word-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.word-actions .btn {
    flex: 1;
    min-width: fit-content;
}

/* Video sidebar */
.video-sidebar {
    background: var(--d-bg-card);
    border-radius: var(--d-radius-lg);
    padding: 1.25rem;
    box-shadow: var(--d-shadow);
}

/* Video player */
.d-video-player {
    aspect-ratio: 1;
    border-radius: var(--d-radius);
    overflow: hidden;
    position: relative;
    background: var(--d-bg-elevated);
}

.d-video-player video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Fix overlay - pointer-events for play button only */
.d-video-player__overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity var(--d-transition);
    pointer-events: none;
}

.d-video-player:hover .d-video-player__overlay,
.d-video-player.paused .d-video-player__overlay {
    opacity: 1;
}

.d-video-player__play {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--d-primary);
    border: 4px solid var(--d-bg-card);
    border-radius: 50%;
    color: white;
    font-size: 1.75rem;
    cursor: pointer;
    transition: all var(--d-transition);
    box-shadow: var(--d-shadow-lg);
    pointer-events: auto;
}

.d-video-player__play:hover {
    background: var(--d-primary-dark);
    transform: scale(1.05);
}

/* No video placeholder */
.no-video__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--d-bg-elevated), var(--d-border));
    color: var(--d-text-muted);
    gap: 1rem;
}

.no-video__placeholder i {
    font-size: 3rem;
    opacity: 0.5;
}

/* Meanings list - unified with info-card */
.meanings-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.meaning-item {
    display: flex;
    gap: 1.25rem;
    padding: 1.25rem;
    border-bottom: 1px solid var(--d-border);
    transition: background var(--d-transition);
}

.meaning-item:last-child {
    border-bottom: none;
}

.meaning-item:hover {
    background: var(--d-bg-elevated);
}

.meaning-item__number {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--d-primary-soft);
    color: var(--d-primary);
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: var(--d-radius);
    flex-shrink: 0;
}

.meaning-item__content {
    flex: 1;
    min-width: 0;
}

.meaning-item__desc {
    color: var(--d-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.meaning-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 3rem;
    color: var(--d-text-muted);
}

.meaning-empty i {
    font-size: 3rem;
    opacity: 0.5;
}

/* Info list for "Information" tab */
.info-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem 1.5rem;
    margin: 0;
}

.info-list dt {
    color: var(--d-text-muted);
    font-weight: 500;
}

.info-list dd {
    margin: 0;
    color: var(--d-text-primary);
}

.meaning-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--d-bg-elevated);
    border-radius: var(--d-radius-full);
    color: var(--d-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    transition: all var(--d-transition);
}

.meaning-tag:hover {
    background: var(--d-primary-soft);
    color: var(--d-primary);
}

/* ============================================
 *  MOBILE VERSION (stacked layout)
 *  ============================================ */

@media (max-width: 991px) {
    .word-content-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* Меняем порядок: заголовок (внутри left-column) первый, видео второй */
    .word-left-column {
        order: 1;
        display: contents; /* Разворачиваем содержимое для управления порядком */
    }

    .word-header {
        order: 1;
    }

    .content-tabs__nav {
        order: 3;
    }

    .content-tabs__viewport {
        order: 4;
    }

    .word-video-column {
        position: static;
        order: 2;
        max-width: 500px;
        margin: 0 auto;
        width: 100%;
    }

    .word-header__title {
        font-size: 2rem;
    }
}

@media (max-width: 767px) {
    .word-header__title {
        font-size: 1.75rem;
    }

    .word-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .meaning-item {
        flex-direction: column;
        gap: 0.75rem;
    }

    .meaning-item__number {
        width: 2rem;
        height: 2rem;
        font-size: 1rem;
    }

    .info-list {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .info-list dt {
        margin-top: 0.75rem;
    }

    .info-list dt:first-child {
        margin-top: 0;
    }
}