.tutorials-page {
    border-bottom: 1px solid var(--border);
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    padding: 24px 0 44px;
}

.video-card {
    display: flex;
    min-height: 100%;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.video-card:hover,
.video-card:focus-within {
    transform: translateY(-2px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, #e9f6ff, #e7fbf7);
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-btn {
    position: absolute;
    left: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: #fff;
    color: var(--text-strong);
    font-size: 0.9rem;
}

.video-duration {
    position: absolute;
    right: 12px;
    bottom: 12px;
    padding: 3px 8px;
    border-radius: 6px;
    background: rgba(37, 52, 71, 0.72);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
}

.video-info {
    display: grid;
    gap: 10px;
    padding: 18px;
}

.video-tag {
    width: fit-content;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
}

.video-info h2 {
    color: var(--text-strong);
    font-size: 1.12rem;
    line-height: 1.35;
}

.video-info p {
    color: var(--muted);
    font-size: 0.95rem;
}

.video-empty-state {
    grid-column: 1 / -1;
    padding: 28px;
    border: 1px dashed var(--border-strong);
    border-radius: 8px;
    background: var(--surface);
    color: var(--muted);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(37, 52, 71, 0.58);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    width: min(980px, 100%);
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.close-btn {
    float: right;
    min-height: 40px;
    margin: 14px 14px 0 0;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-strong);
    cursor: pointer;
    font-weight: 700;
}

.video-container {
    clear: both;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
}

.video-container video {
    width: 100%;
    height: 100%;
    display: block;
}

.modal-meta {
    padding: 20px;
}

.modal-meta h2 {
    margin-bottom: 8px;
    color: var(--text-strong);
    font-size: 1.25rem;
}

.modal-meta p {
    color: var(--muted);
}

@media (max-width: 980px) {
    .tutorial-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .tutorial-grid {
        grid-template-columns: 1fr;
    }
}