:root {
    --tutorial-bg: #f6f8fc;
    --tutorial-surface: #ffffff;
    --tutorial-text: #172033;
    --tutorial-muted: #677287;
    --tutorial-border: #e3e8f1;
    --tutorial-primary: #2457ff;
    --tutorial-primary-dark: #193ba8;
    --tutorial-radius: 22px;
    --tutorial-shadow: 0 18px 50px rgba(26, 39, 74, 0.08);
}

.tutorial-page { background: var(--tutorial-bg); color: var(--tutorial-text); min-height: 70vh; }
.tutorial-wrap { width: min(1180px, calc(100% - 30px)); margin-inline: auto; }
.tutorial-hero { padding: 68px 0 50px; border-bottom: 1px solid var(--tutorial-border); background: radial-gradient(circle at 86% 10%, rgba(36,87,255,.18), transparent 34%), linear-gradient(135deg,#fff,#eef3ff); }
.tutorial-hero-inner { text-align: center; }
.tutorial-eyebrow, .tutorial-kicker { margin: 0 0 8px; color: var(--tutorial-primary); font-size: 13px; font-weight: 900; }
.tutorial-hero h1 { margin: 0; font-size: clamp(30px, 6vw, 52px); line-height: 1.4; font-weight: 900; }
.tutorial-hero p { max-width: 760px; margin: 14px auto 0; color: var(--tutorial-muted); line-height: 2; }
.tutorial-content-wrap { padding-block: 34px 64px; }
.tutorial-directory, .tutorial-cards-section, .tutorial-transcript, .tutorial-article-content, .tutorial-related { margin-bottom: 30px; }
.tutorial-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.tutorial-section-heading h2 { margin: 0; font-size: clamp(22px, 4vw, 30px); font-weight: 900; }
.tutorial-section-heading > span { color: var(--tutorial-muted); font-size: 13px; }
.tutorial-directory-groups { display: grid; gap: 16px; grid-template-columns: repeat(2,minmax(0,1fr)); }
.tutorial-directory-group { padding: 22px; border: 1px solid var(--tutorial-border); border-radius: var(--tutorial-radius); background: var(--tutorial-surface); box-shadow: var(--tutorial-shadow); }
.tutorial-directory-group h3 { margin: 0 0 14px; font-size: 16px; font-weight: 900; }
.tutorial-directory-group ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.tutorial-directory-group a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 11px 13px; border-radius: 12px; color: var(--tutorial-text); background: #f8faff; text-decoration: none; transition: .2s ease; }
.tutorial-directory-group a:hover { background: #edf2ff; color: var(--tutorial-primary-dark); transform: translateY(-1px); }
.tutorial-directory-group small { color: var(--tutorial-muted); direction: ltr; white-space: nowrap; }
.tutorial-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.tutorial-card { overflow: hidden; border: 1px solid var(--tutorial-border); border-radius: var(--tutorial-radius); background: var(--tutorial-surface); box-shadow: var(--tutorial-shadow); }
.tutorial-card-media { position: relative; display: block; aspect-ratio: 16/9; overflow: hidden; background: #e9eef7; }
.tutorial-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.tutorial-card:hover .tutorial-card-media img { transform: scale(1.025); }
.tutorial-card-placeholder { display: grid; width: 100%; height: 100%; place-items: center; font-weight: 900; color: #7b879d; }
.tutorial-play { position: absolute; inset: 50% auto auto 50%; translate: -50% -50%; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; background: rgba(255,255,255,.92); color: var(--tutorial-primary); font-size: 19px; box-shadow: 0 8px 30px rgba(0,0,0,.18); }
.tutorial-duration { position: absolute; left: 10px; bottom: 10px; padding: 4px 8px; border-radius: 8px; background: rgba(15,23,42,.86); color: #fff; font-size: 11px; direction: ltr; }
.tutorial-card-body { padding: 18px; }
.tutorial-category { display: inline-flex; padding: 5px 9px; border-radius: 999px; background: #edf2ff; color: var(--tutorial-primary-dark); font-size: 11px; font-weight: 900; }
.tutorial-card h2 { margin: 12px 0 8px; font-size: 18px; line-height: 1.8; }
.tutorial-card h2 a { color: inherit; text-decoration: none; }
.tutorial-card p { margin: 0; color: var(--tutorial-muted); font-size: 13px; line-height: 2; }
.tutorial-card-link { display: inline-flex; margin-top: 14px; color: var(--tutorial-primary); text-decoration: none; font-size: 13px; font-weight: 900; }
.tutorial-empty { margin: 30px auto; padding: 55px 20px; text-align: center; border: 1px dashed #cad3e2; border-radius: var(--tutorial-radius); background: #fff; }
.tutorial-empty h2 { margin: 0 0 8px; }
.tutorial-empty p { margin: 0; color: var(--tutorial-muted); }

.tutorial-watch-wrap { padding: 26px 0 64px; }
.tutorial-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--tutorial-muted); font-size: 12px; }
.tutorial-breadcrumb a { color: var(--tutorial-primary); text-decoration: none; }
.tutorial-watch-header { max-width: 900px; margin: 28px auto 24px; text-align: center; }
.tutorial-watch-header h1 { margin: 12px 0 10px; font-size: clamp(28px,5vw,46px); line-height: 1.55; font-weight: 900; }
.tutorial-watch-header > p { margin: 0 auto; color: var(--tutorial-muted); line-height: 2; }
.tutorial-meta { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 18px; margin-top: 14px; color: var(--tutorial-muted); font-size: 12px; }
.tutorial-player-card { overflow: hidden; border: 1px solid var(--tutorial-border); border-radius: 26px; background: #0f172a; box-shadow: var(--tutorial-shadow); }
.tutorial-player-card video { display: block; width: 100%; max-height: 72vh; background: #000; }
.tutorial-player-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; padding: 14px; background: #fff; }
.tutorial-btn { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 0 16px; border-radius: 12px; text-decoration: none; font-size: 13px; font-weight: 900; }
.tutorial-btn-primary { background: var(--tutorial-primary); color: #fff; }
.tutorial-btn-soft { background: #edf2ff; color: var(--tutorial-primary-dark); }
.tutorial-article-content, .tutorial-transcript { margin-top: 26px; padding: clamp(20px,4vw,36px); border: 1px solid var(--tutorial-border); border-radius: var(--tutorial-radius); background: #fff; box-shadow: var(--tutorial-shadow); line-height: 2.15; }
.tutorial-article-content h2, .tutorial-article-content h3, .tutorial-transcript h2 { color: var(--tutorial-text); font-weight: 900; }
.tutorial-article-content img { max-width: 100%; height: auto; border-radius: 16px; }
.tutorial-transcript h2 { margin-top: 0; }
.tutorial-transcript div { color: #3f4b61; line-height: 2.25; }
.tutorial-related { margin-top: 34px; }
.tutorial-related-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 14px; }
.tutorial-related-card { display: flex; min-height: 142px; flex-direction: column; gap: 8px; justify-content: center; padding: 18px; border: 1px solid var(--tutorial-border); border-radius: 18px; background: #fff; color: var(--tutorial-text); text-decoration: none; box-shadow: var(--tutorial-shadow); }
.tutorial-related-card span, .tutorial-related-card small { color: var(--tutorial-muted); font-size: 11px; }
.tutorial-related-card strong { line-height: 1.8; }

@media (max-width: 920px) {
    .tutorial-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .tutorial-related-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 640px) {
    .tutorial-hero { padding: 46px 0 34px; }
    .tutorial-content-wrap { padding-top: 24px; }
    .tutorial-directory-groups, .tutorial-grid, .tutorial-related-grid { grid-template-columns: 1fr; }
    .tutorial-section-heading { align-items: start; }
    .tutorial-player-card { border-radius: 16px; }
    .tutorial-player-actions { justify-content: stretch; }
    .tutorial-player-actions .tutorial-btn { flex: 1 1 auto; }
    .tutorial-watch-header { text-align: right; }
    .tutorial-meta { justify-content: flex-start; }
}