.getting-started-page {
  --start-gutter: clamp(20px, 4vw, 72px);
  --start-space: clamp(64px, 7.5vw, 120px);
  --start-gap: clamp(28px, 5vw, 80px);
  --start-display: clamp(2.5rem, 5.2vw, 5.5rem);
  --start-heading: clamp(2rem, 3.6vw, 3.6rem);
  --start-feature: clamp(1.5rem, 2.5vw, 2.4rem);
  --start-body: clamp(1rem, 1.22vw, 1.2rem);
  background: var(--cream-50);
}
body.getting-started-page { --layout-page-title: var(--start-display); }
.start-wrap { width: min(1440px, calc(100% - var(--start-gutter) * 2)); margin-inline: auto; }
.start-hero, .start-story, .start-rollout, .start-final { color: var(--navy-950); background: var(--cream-50); }
.start-hero { padding-block: clamp(64px, 7.5vw, 108px) 56px; }
.start-hero-grid { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr); align-items: end; gap: var(--start-gap); }
.start-kicker { margin: 0 0 24px; color: var(--gold-readable); font-size: .75rem; font-family: var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
html[lang] body.getting-started-page main h1.start-title { margin: 0; color: var(--navy-900); font-size: var(--start-display); font-weight: 600; letter-spacing: -.055em; line-height: 1.07; }
.start-title > span, .start-rollout h2 > span { display: block; }
.start-hero-intro { padding-bottom: 5px; }
.start-hero-intro > p { margin: 0 0 28px; max-width: 32ch; color: var(--ink-muted); font-size: var(--start-body); line-height: 1.65; }
.start-hero .button { min-height: 48px; }
.start-story { padding-block: 0 var(--start-space); }
.start-casebar { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-bottom: 24px; }
.start-cases { display: flex; align-items: center; gap: clamp(20px, 3vw, 44px); flex-wrap: wrap; }
.start-case { border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--ink-muted); font: 500 var(--start-body)/1.4 var(--font-sans); padding: 10px 0; cursor: pointer; min-height: 44px; }
.start-case[aria-pressed="true"] { color: var(--navy-900); border-color: var(--gold); }
.start-case:hover { color: var(--navy-900); }
.start-example-note { margin: 0; color: var(--ink-muted); font-size: .86rem; line-height: 1.5; text-align: right; }
.start-cinema { position: relative; aspect-ratio: 16/9; isolation: isolate; }
.start-film { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; mask-image: linear-gradient(to right, transparent, #000 2%, #000 98%, transparent), linear-gradient(to bottom, transparent, #000 3%, #000 96%, transparent); mask-composite: intersect; }
.start-film[hidden] { display: none; }
.start-film-caption { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 16px; color: var(--ink-muted); font-size: .85rem; line-height: 1.5; }
.start-time { color: var(--navy-800); }
.start-play { display: inline-flex; align-items: center; gap: 10px; padding: 8px 0 8px 12px; min-width: 76px; min-height: 44px; border: 0; background: none; color: var(--navy-900); cursor: pointer; font: 500 .9rem/1.4 var(--font-sans); }
.start-play-icon { display: inline-block; width: 10px; height: 13px; border-left: 3px solid currentColor; border-right: 3px solid currentColor; }
.start-play[data-paused="true"] .start-play-icon { width: 0; height: 0; border: 6px solid transparent; border-left: 9px solid currentColor; border-right: 0; }
.start-context { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--start-gap); padding-block: 32px 40px; align-items: start; }
.start-question { margin: 0; max-width: 29ch; font-size: var(--start-feature); line-height: 1.2; font-weight: 600; letter-spacing: -.025em; text-wrap: pretty; }
.start-context p { margin: 0; max-width: 49ch; color: var(--ink-muted); font-size: var(--start-body); line-height: 1.65; }
.start-phases { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: clamp(20px, 3vw, 48px); }
.start-phase { position: relative; display: block; width: 100%; padding: 20px 0 0; text-align: left; border: 0; border-top: 2px solid var(--line-light); color: var(--ink-muted); background: transparent; font-family: var(--font-sans); cursor: pointer; }
.start-phase::before { position: absolute; content: ""; height: 2px; width: 100%; background: var(--gold); top: -2px; left: 0; transform: scaleX(var(--progress,0)); transform-origin: left; }
.start-phase strong { display: block; font-size: clamp(1.02rem, 1.3vw, 1.25rem); line-height: 1.4; font-weight: 600; }
.start-phase span { display: block; margin-top: 10px; max-width: 40ch; font-size: .9rem; font-weight: 400; line-height: 1.55; }
.start-phase[aria-pressed="true"] { color: var(--navy-900); }
.start-phase[aria-pressed="true"] strong { color: var(--navy-900); }
.start-rollout { padding-block: var(--start-space); border-top: 1px solid var(--line-light); }
.start-rollout-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: var(--start-gap); }
.start-rollout h2, .start-final h2 { margin: 0; font-size: var(--start-heading); line-height: 1.12; letter-spacing: -.04em; font-weight: 600; }
.start-rollout-intro > p:last-child { margin: 28px 0 0; max-width: 34ch; color: var(--ink-muted); font-size: var(--start-body); line-height: 1.65; }
.start-steps details { border-bottom: 1px solid var(--line-light); }
.start-steps details:first-child { border-top: 1px solid var(--line-light); }
.start-steps summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 24px; min-height: 80px; cursor: pointer; list-style: none; }
.start-steps summary::-webkit-details-marker { display: none; }
.start-steps summary h3 { margin: 0; font-size: clamp(1.15rem, 1.7vw, 1.6rem); line-height: 1.35; font-weight: 500; letter-spacing: -.02em; }
.start-steps summary > span { font-size: 1.4rem; font-weight: 400; color: var(--gold-readable); }
.start-steps details[open] summary > span { font-size: 0; }
.start-steps details[open] summary > span::after { content: "−"; font-size: 1.4rem; }
.start-steps details > p { margin: 0; padding-bottom: 28px; max-width: 48ch; font-size: var(--start-body); line-height: 1.65; color: var(--ink-muted); }
.start-final { padding-block: var(--start-space); background: var(--cream-100); }
.start-final-grid { display: flex; align-items: center; justify-content: space-between; gap: var(--start-gap); }
.start-final h2 { max-width: 23ch; }
.start-final p:not(.start-kicker) { margin: 24px 0 0; color: var(--ink-muted); font-size: var(--start-body); line-height: 1.6; }
.start-final .button { flex-shrink: 0; min-height: 48px; }
.getting-started-page :is(.start-case,.start-phase,.start-play,.start-steps summary):focus-visible { outline: 2px solid var(--navy-900); outline-offset: 6px; }
@media (min-width: 821px) {
  .start-case, .start-phase, .start-play { transition: color 180ms ease, border-color 180ms ease; }
}
@media (max-width: 1024px) {
  body.getting-started-page { --start-display: clamp(2.5rem, 5.3vw, 4rem); }
  .start-hero-grid { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 32px; }
  .start-title { font-size: clamp(2.5rem, 5.3vw, 4rem); }
  .start-hero-intro > p { font-size: 1rem; }
}
@media (max-width: 820px) {
  body.getting-started-page { --start-display: clamp(2.5rem, 8vw, 4.5rem); }
  .start-hero-grid, .start-context, .start-rollout-grid { grid-template-columns: minmax(0, 1fr); }
  .start-hero { padding-block: 64px 40px; }
  .start-hero-intro { max-width: 38rem; }
  .start-hero-intro > p { max-width: 48ch; }
  .start-title { font-size: clamp(2.5rem, 8vw, 4.5rem); }
  .start-casebar { align-items: start; }
  .start-example-note { max-width: 24ch; font-size: .75rem; }
  .start-context { gap: 18px; padding-block: 24px 32px; }
  .start-question { max-width: 30ch; }
  .start-phases { gap: 18px; }
  .start-phase span { font-size: .8rem; }
  .start-final-grid { display: grid; }
  .start-final .button { justify-self: start; }
}
@media (max-width: 560px) {
  .start-casebar { display: block; padding-bottom: 16px; }
  .start-example-note { max-width: none; text-align: left; margin-top: 12px; }
  .start-cases { flex-wrap: nowrap; justify-content: space-between; gap: 16px; }
  .start-case { font-size: .95rem; }
  .start-cinema { width: calc(100% + var(--start-gutter)*2); margin-inline: calc(-1*var(--start-gutter)); }
  .start-film-caption { gap: 12px; margin-top: 4px; font-size: .75rem; }
  .start-phases { gap: 12px; }
  .start-phase { padding-top: 14px; }
  .start-phase strong { font-size: .86rem; }
  .start-phase span { display: none; }
  .start-steps summary { min-height: 76px; }
}
@media (prefers-reduced-motion: reduce) {
  .start-case, .start-phase, .start-play { transition: none; }
}