/* Spetch website — the tutorials portal (tutorials.html). Builds on style.css. */

.nav a[aria-current="page"] { color: var(--text); font-weight: 800; }

/* ── hero ── */
.tut-hero { padding: 56px 0 24px; }
.tut-hero h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); max-width: 18em; }
.tut-hero .lead { max-width: 40em; }
.tut-stats { color: var(--muted); font-weight: 800; font-size: 0.95rem; margin: 0; }
.tut-hero .hero-ctas { margin: 22px 0 0; }

/* ── player ── */
.tut-player { padding: 24px 0 8px; scroll-margin-top: 72px; }
.tut-player-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
.tut-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #111;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.tut-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.tut-kicker { color: var(--accent); font-weight: 800; font-size: 0.9rem; margin: 0 0 0.4em; }
.tut-title { text-align: start; font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin: 0 0 0.5em; }
.tut-summary { color: var(--muted); }
.tut-note { font-size: 0.9rem; background: var(--accent-soft); color: var(--accent-strong); padding: 0.5em 0.8em; border-radius: 10px; }
.tut-nav { display: flex; gap: 10px; flex-wrap: wrap; margin: 6px 0 14px; }
.tut-nav .btn[disabled] { opacity: 0.4; cursor: default; }
.tut-links { display: flex; gap: 18px; flex-wrap: wrap; font-size: 0.95rem; margin: 0; }

/* ── browse ── */
.tut-browse { padding: 32px 0 64px; }
.tut-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.tut-levels { display: flex; flex-wrap: wrap; gap: 8px; }
.tut-chip {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 800;
  background: var(--surface);
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35em 1em;
  cursor: pointer;
}
.tut-chip:hover { border-color: var(--accent); color: var(--accent); }
.tut-chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.tut-search {
  font: inherit;
  font-size: 0.95rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45em 1.1em;
  min-width: 0;
  width: min(100%, 280px);
}
.tut-search:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }

.tut-level { margin-top: 36px; }
.tut-level-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.tut-level-head h2 { text-align: start; font-size: 1.35rem; margin: 0; }
.tut-level-head span { color: var(--muted); font-size: 0.9rem; }

.tut-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.tut-card {
  display: flex;
  flex-direction: column;
  text-align: start;
  font: inherit;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.tut-card:hover { border-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-2px); }
.tut-card:focus-visible { outline: 3px solid var(--accent-soft); border-color: var(--accent); }
.tut-card[aria-current="true"] { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.tut-thumb { position: relative; aspect-ratio: 16 / 9; background: var(--bg-alt); }
.tut-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.tut-duration, .tut-watched {
  position: absolute;
  bottom: 8px;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.1em 0.5em;
  border-radius: 6px;
  direction: ltr;
}
.tut-duration { inset-inline-end: 8px; background: rgba(0, 0, 0, 0.78); color: #fff; }
.tut-watched { inset-inline-start: 8px; background: var(--surface); color: var(--accent-strong); }
.tut-body { padding: 14px 16px 16px; }
.tut-num { color: var(--accent); font-weight: 800; font-size: 0.85rem; margin: 0 0 0.25em; }
.tut-card h3 { font-size: 1.02rem; margin: 0 0 0.35em; }
.tut-card p.tut-desc {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tut-empty { text-align: center; color: var(--muted); margin: 48px 0; }
.tut-more { text-align: center; color: var(--muted); font-size: 0.95rem; margin: 48px 0 0; }
.tut-footer-links { display: flex; gap: 18px; }

@media (max-width: 900px) {
  .tut-player-inner { grid-template-columns: 1fr; gap: 18px; }
}
@media (max-width: 620px) {
  .tut-hero { padding-top: 36px; }
  .tut-search { width: 100%; }
  .tut-grid { grid-template-columns: 1fr; }
}