:root {
  --ink: #f5f5f2;
  --muted: rgba(245,245,242,.68);
  --green: #52e08a;
  --amber: #f4b64d;
  --red: #ef675e;
  --line: rgba(255,255,255,.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-snap-type: y mandatory; background: #080a09; }
body { margin: 0; color: var(--ink); background: #080a09; font-family: "IBM Plex Sans", Inter, Arial, sans-serif; }
button, a { font: inherit; }
button { color: inherit; }

.masthead {
  position: fixed; z-index: 20; inset: max(16px, env(safe-area-inset-top)) 18px auto;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  pointer-events: none;
}
.masthead > * { pointer-events: auto; }
[dir="rtl"] .masthead, [dir="rtl"] .brand { direction: ltr; }
.brand { display: inline-flex; width: max-content; align-items: center; gap: 10px; color: white; text-decoration: none; font-size: 10px; line-height: 1.05; letter-spacing: .12em; font-weight: 700; }
.brand img { width: 60px; height: 60px; object-fit: contain; }
.counter { display: flex; align-items: center; gap: 8px; font: 500 11px/1 monospace; letter-spacing: .12em; }
.counter i { display: block; width: 42px; height: 1px; background: var(--line); }
.skip { justify-self: end; border: 1px solid var(--line); background: rgba(0,0,0,.34); backdrop-filter: blur(10px); padding: 10px 14px; border-radius: 99px; font-size: 10px; letter-spacing: .12em; cursor: pointer; }

.screen { position: relative; min-height: 100svh; overflow: hidden; scroll-snap-align: start; scroll-snap-stop: always; isolation: isolate; }
.scene { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(.72) contrast(1.04); transform: scale(1.015); }
.veil { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,6,5,.88) 0%, rgba(4,6,5,.51) 44%, rgba(4,6,5,.08) 76%), linear-gradient(0deg, rgba(4,6,5,.68), transparent 48%); }
.screen::after { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 44px 44px; }
.copy { position: relative; z-index: 3; min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; width: min(880px, calc(100% - 132px)); padding: 0 0 clamp(72px, 12vh, 126px) clamp(28px, 7vw, 112px); }
.kicker { margin: 0 0 14px; color: var(--muted); font: 600 11px/1.2 monospace; letter-spacing: .18em; }
h1, h2 { max-width: 820px; margin: 0; font-weight: 430; font-size: clamp(34px, 5.4vw, 84px); line-height: .98; letter-spacing: -.045em; text-wrap: balance; }
[data-tone="warning"] .kicker { color: var(--amber); }
[data-tone="danger"] .kicker, [data-tone="critical"] .kicker { color: var(--red); }
[data-tone="recovery"] .kicker, [data-tone="action"] .kicker { color: var(--green); }

.advance, .restart { position: absolute; z-index: 5; right: 28px; bottom: 26px; border: 1px solid var(--line); background: rgba(0,0,0,.38); backdrop-filter: blur(10px); cursor: pointer; }
.advance { width: 46px; height: 46px; border-radius: 50%; font-size: 22px; }
.restart { border-radius: 99px; padding: 12px 17px; font-size: 10px; letter-spacing: .1em; }
.rail { position: fixed; z-index: 20; right: 24px; top: 50%; transform: translateY(-50%); display: grid; gap: 10px; }
.rail a { width: 7px; height: 7px; border: 1px solid rgba(255,255,255,.62); border-radius: 50%; transition: .2s ease; }
.rail a.active { background: var(--green); border-color: var(--green); transform: scale(1.35); }
.story-languages { position: fixed; z-index: 21; top: max(76px, calc(env(safe-area-inset-top) + 66px)); left: 24px; display: flex; gap: 8px; writing-mode: horizontal-tb; direction: ltr; }
.story-languages a { color: rgba(255,255,255,.62); text-decoration: none; font: 600 9px/1 monospace; letter-spacing: .08em; }
.story-languages a[aria-current="page"], .story-languages a:hover, .story-languages a:focus-visible { color: var(--green); }

.action-screen .veil { background: linear-gradient(90deg, rgba(3,8,5,.92) 0%, rgba(3,8,5,.66) 53%, rgba(3,8,5,.25)), linear-gradient(0deg, rgba(3,8,5,.72), transparent 50%); }
.action-copy { padding-bottom: clamp(76px, 10vh, 110px); }
.action-copy h2 { font-size: clamp(32px, 4.6vw, 70px); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.actions a { color: white; text-decoration: none; border: 1px solid rgba(255,255,255,.43); background: rgba(0,0,0,.32); backdrop-filter: blur(12px); border-radius: 99px; padding: 13px 18px; font-size: 11px; font-weight: 650; letter-spacing: .07em; transition: .2s ease; }
.actions a:hover, .actions a:focus-visible { color: #071009; background: var(--green); border-color: var(--green); outline: none; }
.prototype-note { margin: 16px 0 0; color: var(--muted); font-size: 11px; letter-spacing: .05em; }

@media (min-width: 701px) {
  [dir="rtl"] .copy { margin-right: auto; margin-left: 0; width: min(800px, calc(100% - 132px)); padding-left: clamp(28px, 7vw, 112px); padding-right: clamp(28px, 5vw, 76px); text-align: right; }
}

@media (max-width: 700px) {
  html { scroll-snap-type: y proximity; }
  .masthead { inset-inline: 12px; }
  .brand span { display: none; }
  .brand img { width: 48px; height: 48px; }
  .skip { padding: 9px 11px; font-size: 9px; }
  .counter i { width: 24px; }
  .screen { display: grid; grid-template-rows: minmax(0, 56svh) auto; min-height: 100svh; background: #080a09; }
  .scene { position: relative; grid-row: 1; width: 100%; height: 56svh; object-fit: cover; transform: none; }
  .veil { grid-row: 1 / 3; background: linear-gradient(0deg, #080a09 40%, rgba(8,10,9,.08) 78%); }
  .copy { grid-row: 2; min-height: 44svh; width: 100%; padding: 28px 54px max(52px, env(safe-area-inset-bottom)) 20px; justify-content: flex-start; }
  h1, h2 { font-size: clamp(32px, 10vw, 48px); line-height: .98; }
  .kicker { font-size: 10px; }
  .rail { right: 14px; }
  .story-languages { top: max(67px, calc(env(safe-area-inset-top) + 58px)); left: 14px; gap: 7px; }
  .advance { right: 12px; bottom: 16px; width: 40px; height: 40px; }
  .restart { right: 12px; bottom: 15px; }
  .actions { display: grid; margin-top: 24px; }
  .actions a { width: fit-content; }
  .action-screen .veil { background: linear-gradient(0deg, #071009 42%, rgba(7,16,9,.06) 84%); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}
/* a11y 2026-10-07 */
.story-languages a{display:inline-flex;align-items:center;justify-content:center;min-width:28px;min-height:28px;font-size:12px}
/* a11y rail 2026-10-07 */
.rail a{position:relative}.rail a::after{content:"";position:absolute;inset:-9px}
/* min text size 12px 2026-10-07 */
.kicker,.skip,.restart,.screen a{font-size:12px}
/* rail target size 24px 2026-10-07 */
.rail{gap:0}.rail a{width:24px;height:24px;border:0;border-radius:0;display:grid;place-items:center;transform:none}
.rail a::after{display:none}
.rail a::before{content:"";width:7px;height:7px;border:1px solid rgba(255,255,255,.62);border-radius:50%;transition:.2s ease}
.rail a.active{background:none;transform:none}.rail a.active::before{background:var(--green);border-color:var(--green);transform:scale(1.35)}