.about { line-height: 1.55; }
.about .brand { color: inherit; text-decoration: none; }
.about .topbar { position: sticky; top: 0; z-index: 10; background: var(--bg); }
.about main { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.about a { color: inherit; }
.about h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.15; letter-spacing: -.015em; margin: 0 0 16px; }
.about figure { margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }

.kicker { font-size: 14px; font-weight: 600; color: var(--dim); margin-bottom: 12px; }
.hero .kicker { color: var(--accent); }
.cta { display: inline-block; padding: 12px 22px; border-radius: 8px; background: var(--accent); color: var(--accent-ink) !important; font-weight: 600; text-decoration: none; }
.cta:hover { filter: brightness(1.06); }
.cta:focus-visible, .ghost:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.cta.small { padding: 7px 14px; font-size: 13.5px; }
.ghost { padding: 12px 4px; color: var(--muted) !important; text-decoration: none; border-bottom: 1px solid var(--line-strong); }
.ghost:hover { color: var(--text) !important; border-color: var(--muted); }

/* 1. hero */
.hero { padding: 88px 0 48px; max-width: 760px; }
.hero h1 { font-size: clamp(36px, 5.6vw, 60px); line-height: 1.05; letter-spacing: -.025em; margin: 0; }
.lead { margin-top: 20px; font-size: 18px; color: var(--muted); max-width: 620px; }
.hero-actions { margin-top: 32px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.modes { margin-top: 22px; font-family: 'JetBrains Mono', monospace; font-size: 12.5px; color: var(--dim); }

/* the product: a recording of a real session */
.film video { display: block; width: 100%; aspect-ratio: 16 / 9; border-radius: 10px; background: #0d1410; box-shadow: 0 0 0 1px var(--line-strong), 0 24px 60px rgba(0, 0, 0, .45); }
.film-title { margin: 0 0 12px; font-size: 14px; color: var(--dim); }
.film-title b { color: var(--text); font-weight: 600; margin-right: 10px; }
.film .frame { position: relative; }
.film .play { position: absolute; left: 50%; top: 50%; width: 84px; height: 84px; margin: -42px 0 0 -42px; border-radius: 50%; border: 0; background: var(--accent); cursor: pointer; box-shadow: 0 10px 30px rgba(0, 0, 0, .5); }
.film .play::before { content: ''; position: absolute; left: 34px; top: 26px; border-style: solid; border-width: 16px 0 16px 26px; border-color: transparent transparent transparent var(--accent-ink); }
.film .play:hover { filter: brightness(1.08); }
.after-film { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 26px; color: var(--dim); font-size: 14px; }
.film figcaption { margin-top: 12px; font-size: 13.5px; color: var(--dim); }
.shot-title { font-size: 20px; font-weight: 700; margin: 2px 0 10px; }
.about .board { width: 100%; height: auto; aspect-ratio: 1; }

/* 2. contrast */
.contrast { padding: 140px 0 0; }
.contrast h2 { max-width: 640px; }
.loop { margin-top: 26px; font-size: clamp(17px, 2.1vw, 22px); line-height: 1.5; }
.loop i { font-style: normal; color: var(--dim); margin: 0 .35em; }
.loop.passive { color: var(--dim); margin-top: 36px; }
.loop.passive .mark { display: inline-grid; place-items: center; width: 1.5em; height: 1.5em; margin-right: .3em; border-radius: 50%; background: var(--c-blunder); color: #fff; font-size: .62em; font-weight: 800; vertical-align: .18em; }
.loop.active { color: var(--text); font-weight: 600; }

/* 3. stories (also used for memory) */
.story { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 72px; align-items: center; padding: 140px 0 0; }
.story.flip .copy { order: 2; }
.copy p { color: var(--muted); font-size: 16.5px; }
.copy p + p { margin-top: 14px; }
.ladder { list-style: none; counter-reset: step; margin: 24px 0 0; padding: 0; }
.ladder li { counter-increment: step; position: relative; padding: 11px 0 11px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 15px; }
.ladder li:last-child { border-bottom: 1px solid var(--line); }
.ladder li::before { content: counter(step); position: absolute; left: 0; top: 11px; width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--dim); }
.ladder b { color: var(--text); font-weight: 600; }
.ask { padding: 140px 0 0; }
.ask .copy { max-width: 620px; margin-bottom: 36px; }
.ask .film { margin: 0; }
.asks { margin: 26px 0 0; }
.asks > div { padding: 12px 0; border-top: 1px solid var(--line); }
.asks > div:last-child { border-bottom: 1px solid var(--line); }
.asks dt { color: var(--text); font-weight: 600; font-size: 15.5px; }
.asks dd { margin: 3px 0 0; color: var(--muted); font-size: 14.5px; }
.team { padding: 140px 0 0; }
.coaches-grid { list-style: none; margin: 34px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.coaches-grid img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; border-radius: 10px; margin-bottom: 14px; }
.coaches-grid b { display: block; font-size: 17px; }
.coaches-grid span { display: block; margin-top: 4px; color: var(--muted); font-size: 14.5px; }
.fine { margin-top: 22px; color: var(--dim); font-size: 14px; }

.levels { margin: 0; font-size: 14.5px; }
.levels > div { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 12px; padding: 10px 2px; border-bottom: 1px solid var(--line); }
.levels dt { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--text); padding-top: 1px; }
.levels dd { margin: 0; color: var(--muted); }
.review-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.review-meta .chip { border: 1px solid; }
.ui .notebook { padding: 20px 22px; }
.ui .notebook h3 { font-size: 14px; margin: 0; }
.ui .notebook li { font-size: 14px; }

/* 4. trust */
.trust { padding: 140px 0 0; }
.trust .lead { margin-top: 0; }
.exchange { margin: 36px 0 0; display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 14px 20px; max-width: 760px; }
.exchange dt { font-size: 13.5px; color: var(--dim); padding-top: 2px; }
.exchange dd { margin: 0; }
.exchange code { font-family: 'JetBrains Mono', monospace; font-size: 14px; line-height: 1.6; color: var(--muted); }
.exchange .says { font-size: 19px; line-height: 1.4; color: var(--text); }


/* 7. final call */
.closing { margin-top: 140px; padding-top: 56px; border-top: 1px solid var(--line); }
.closing h2 { font-size: clamp(30px, 4.6vw, 48px); margin-bottom: 28px; }
.closing p { margin-top: 20px; color: var(--muted); font-size: 15px; }
.foot { max-width: 1080px; margin: 96px auto 0; padding: 22px 24px 36px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; color: var(--dim); font-size: 13px; }
.foot a { color: var(--muted); }

@media (max-width: 820px) {
  .about main { padding: 0 16px; }
  .hero { padding: 48px 0 32px; }
  .lead { font-size: 16.5px; }
  .contrast, .story, .trust { padding-top: 88px; }
  .story { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .ask { padding-top: 88px; }
  .team { padding-top: 88px; }
  .coaches-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .story.flip .copy { order: 0; }
  .patience { padding-top: 88px; }
  .closing { margin-top: 88px; padding-top: 40px; }
  .exchange { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .exchange dd { margin-bottom: 12px; }
  .foot { margin-top: 64px; }
}