/* Video lesson pages (/videos/, built by tools/video_pages.py). Uses the tokens in site.css. */

/* ---- the player: thumbnail first, YouTube after a press of play ---------------------- */
.vl-main { display: grid; gap: 22px; padding-top: 20px; padding-bottom: 12px; }
.vl-player {
  position: relative; aspect-ratio: 16 / 9; border-radius: 18px; overflow: hidden;
  background: #000; box-shadow: var(--shadow); scroll-margin-top: 90px;
}
.vl-facade { position: absolute; inset: 0; display: block; }
.vl-facade img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease, filter .3s ease; }
.vl-facade:hover img { transform: scale(1.015); filter: brightness(.92); }
.vl-play { position: absolute; left: 50%; top: 50%; width: 78px; height: 55px; transform: translate(-50%, -50%); filter: drop-shadow(0 6px 14px rgba(0, 0, 0, .35)); }
.vl-play svg { width: 100%; height: 100%; display: block; }
.vl-facade:focus-visible { outline: 4px solid var(--gold); outline-offset: -4px; border-radius: 18px; }
.vl-player iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.vl-note { margin-top: 10px; color: var(--ink-3); }

.vl-side { padding: 18px 20px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); }
.vl-side .h-small { font-size: 20px; margin-bottom: 8px; }
.vl-side .h-small + ul { margin-bottom: 18px; }
.vl-learn { margin: 0; padding-left: 20px; display: grid; gap: 6px; color: var(--ink-2); }
.vl-learn li::marker { color: var(--violet); }
.vl-moments { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.vl-moment { display: flex; gap: 10px; align-items: baseline; padding: 6px 8px; margin: 0 -8px; border-radius: 10px; color: var(--ink); text-decoration: none; line-height: 1.35; }
.vl-moment:hover { background: var(--surface-2); color: var(--violet); }
.vl-moment time, .vl-ts { flex: none; font: 600 13px/1.6 "IBM Plex Mono", monospace; color: var(--violet); }
@media (min-width: 900px) {
  .vl-main { grid-template-columns: minmax(0, 1.75fr) minmax(260px, 1fr); align-items: start; gap: 28px; }
}

/* ---- the written lesson -------------------------------------------------------------- */
.vl-body { display: grid; gap: 32px; padding-top: 24px; padding-bottom: 40px; }
.vl-article { display: grid; gap: 34px; min-width: 0; }
.vl-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; counter-reset: step; }
.vl-steps li {
  position: relative; padding: 16px 18px 16px 62px; border-radius: 16px;
  background: var(--surface); border: 1px solid var(--line); counter-increment: step;
}
.vl-steps li::before {
  content: counter(step); position: absolute; left: 16px; top: 15px; width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; background: var(--violet); color: #fff; font: 700 16px/1 "IBM Plex Mono", monospace;
}
.vl-steps h3 { font: 600 19px/1.3 Fredoka, sans-serif; margin-bottom: 4px; }
.vl-steps p { color: var(--ink-2); }
.vl-jump {
  display: inline-flex; gap: 6px; align-items: center; margin-top: 10px; padding: 4px 12px; border-radius: 999px;
  border: 1.5px solid var(--line-2); color: var(--ink-2); font-size: 14px; font-weight: 600; text-decoration: none;
}
.vl-jump span { font-family: "IBM Plex Mono", monospace; color: var(--violet); }
.vl-jump:hover { border-color: var(--violet); color: var(--violet); }

.vl-quote {
  display: flex; gap: 16px; align-items: center; margin: 0; padding: 16px 20px; border-radius: 18px;
  background: color-mix(in srgb, var(--gold) 18%, var(--surface)); border: 1px solid color-mix(in srgb, var(--gold) 60%, var(--line));
}
.vl-quote img { flex: none; width: 72px; }
.vl-quote blockquote { margin: 0; font: 500 19px/1.4 Fredoka, sans-serif; }
.vl-quote figcaption { margin-top: 6px; color: var(--ink-3); font-size: 14px; }

.vl-example {
  padding: 18px 20px 20px; border-radius: 18px; border: 1.5px solid color-mix(in srgb, var(--c) 40%, var(--line));
  border-top: 6px solid var(--c); background: color-mix(in srgb, var(--c) 7%, var(--surface));
}
.vl-example-head { display: flex; gap: 14px; align-items: center; margin-bottom: 12px; }
.vl-example-head .h-small { margin: 2px 0 0; }
.vl-example-head .eyebrow { color: var(--c); }
.vl-crew { flex: none; width: 92px; height: auto; animation: vl-bob 4.5s ease-in-out infinite; }
@keyframes vl-bob { 50% { transform: translateY(-4px) rotate(-1.5deg); } }
.vl-problem { font-size: 18px; }
.vl-work { margin: 12px 0; padding-left: 26px; display: grid; gap: 8px; color: var(--ink-2); }
.vl-work li::marker { color: var(--c); font: 700 15px "IBM Plex Mono", monospace; }
.vl-answer { padding: 10px 14px; border-radius: 12px; background: var(--surface); border: 1.5px solid var(--good); font-size: 18px; }
.vl-answer b { color: var(--good); }
.vl-check { margin-top: 8px; color: var(--ink-2); font-size: 15.5px; }

.vl-mistakes { gap: 12px; }
.vl-mistakes b { display: block; color: var(--ink); }
.vl-tag {
  display: inline-block; margin-top: 4px; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 700;
  background: color-mix(in srgb, var(--gold) 30%, var(--surface)); color: var(--ink-2);
}
.vl-faq h3 { font: 600 18px/1.35 Fredoka, sans-serif; margin: 14px 0 4px; }
.vl-faq p { color: var(--ink-2); }

.vl-transcript { border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.vl-transcript summary { padding: 14px 18px; cursor: pointer; font-weight: 700; color: var(--violet); }
.vl-transcript[open] summary { border-bottom: 1px solid var(--line); }
.vl-transcript-text { padding: 14px 18px 4px; display: grid; gap: 12px; color: var(--ink-2); font-size: 16px; }
.vl-transcript .vl-ts { margin-right: 6px; text-decoration: none; }
.vl-transcript .fine { padding: 0 18px 14px; color: var(--ink-3); }

/* ---- practice: worksheets and a daily puzzle ------------------------------------------- */
.vl-practice { display: grid; gap: 12px; align-content: start; }
.vl-practice .fine { color: var(--ink-3); margin-top: -6px; }
.vl-sheets { display: grid; gap: 10px; }
.vl-puzzle {
  display: flex; gap: 12px; align-items: center; padding: 14px; border-radius: 16px; margin-top: 6px;
  background: var(--surface-2); border: 1.5px dashed var(--line-2); color: var(--ink); text-decoration: none;
}
.vl-puzzle:hover { border-color: var(--violet); }
.vl-puzzle-crew { flex: none; width: 64px; height: auto; }
.vl-puzzle small { display: block; color: var(--ink-3); font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.vl-puzzle b { display: block; font: 400 22px/1.1 Anton, Impact, sans-serif; text-transform: uppercase; letter-spacing: .015em; }
.vl-puzzle span span { display: block; margin-top: 4px; color: var(--ink-2); font-size: 14.5px; line-height: 1.4; }
.vl-puzzle em { display: block; margin-top: 6px; font-style: normal; font-weight: 700; color: var(--violet); }
@media (min-width: 900px) {
  .vl-body { grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; align-items: start; }
  .vl-practice { position: sticky; top: 88px; }
}

/* ---- video cards: the hub and "more video lessons" ------------------------------------ */
.vl-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); }
.vl-card { padding: 8px 8px 12px; gap: 8px; }
.vl-card .video-title { font-size: 15.5px; }
.vl-len {
  position: absolute; left: 8px; bottom: 8px; padding: 2px 7px; border-radius: 6px;
  background: rgba(10, 6, 20, .78); color: #fff; font: 600 12px/1.4 "IBM Plex Mono", monospace;
}
.vl-card-meta { padding: 0 4px; margin-top: auto; color: var(--ink-3); font-size: 13px; line-height: 1.35; }
@media (max-width: 520px) {
  .vl-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .vl-card { padding: 6px 6px 10px; border-radius: 14px; }
  .vl-card .thumb { border-radius: 9px; }
  .vl-card .video-title { font-size: 14px; -webkit-line-clamp: 3; }
  .vl-card .play { width: 30px; height: 21px; right: 6px; bottom: 6px; }
  .vl-card .play::after { left: 12px; top: 5px; border-width: 5px 0 5px 8px; }
  .vl-card-meta { font-size: 12px; }
}
.vl-related { padding-top: 8px; }

.vl-hub-hero { display: grid; gap: 12px; align-items: center; }
.vl-hub-crew { justify-self: center; }
.vl-hub-turtle { width: 150px; height: auto; filter: drop-shadow(0 10px 14px rgba(46, 18, 96, .2)); animation: vl-bob 4.5s ease-in-out infinite; }
@media (min-width: 760px) { .vl-hub-hero { grid-template-columns: 1fr auto; gap: 32px; } .vl-hub-turtle { width: 190px; } }
@media (max-width: 759px) { .vl-hub-crew { display: none; } }
.vl-chips { margin-top: 18px; }
.vl-hub { display: grid; gap: 34px; padding-top: 26px; padding-bottom: 20px; }
.vl-topic { scroll-margin-top: 84px; }

@media (prefers-reduced-motion: reduce) {
  .vl-crew, .vl-hub-turtle { animation: none; }
  .vl-facade img { transition: none; }
}