/* Le site de S TIER (version F, validée le 08/11/2026) : le langage d'Apple et de la Silicon Valley. La police d'Apple, serrée, beaucoup de noir,
   une vraie photo produit qui tourne au défilement, aucun effet gratuit. */
:root {
  --bg: #000; --ink: #f5f5f7; --muted: #86868b; --soft: #a1a1a6; --line: rgba(255,255,255,.1); --card: #0b0b0d;
  --link: #2997ff; --ember: #ff7a3d;
  --sf: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sf); font-size: 17px; line-height: 1.47; letter-spacing: -.022em;
  -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, video, canvas { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
h1, h2 { text-wrap: balance; }
.gutter { padding-left: max(22px, env(safe-area-inset-left, 0px)); padding-right: max(22px, env(safe-area-inset-right, 0px)); }
.grad { background: linear-gradient(180deg, #fff 0%, #fff 45%, rgba(255,255,255,.62) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.label { font-size: 14px; font-weight: 600; letter-spacing: -.01em; color: var(--muted); }
.cta { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 22px; border-radius: 999px; background: #f5f5f7; color: #000;
  font-size: 15px; font-weight: 500; letter-spacing: -.01em; transition: background .2s, transform .2s; }
.cta:hover { background: #fff; transform: scale(1.02); }
.more { color: var(--link); font-size: 17px; }
.more:hover { text-decoration: underline; }
.more::after { content: " ›"; }

/* ── Barre : fine, en verre, comme apple.com ─────────────────────── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; padding-top: env(safe-area-inset-top, 0px);
  background: rgba(22,22,23,.72); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.06); }
.nav .in { max-width: 1024px; margin: 0 auto; height: 48px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.mark { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 16px; letter-spacing: .02em; }
.mark img { width: 22px; height: 22px; }
.links { display: flex; gap: 30px; font-size: 13px; color: rgba(245,245,247,.82); letter-spacing: -.005em; }
.links a:hover { color: #fff; }
.nav .small { height: 30px; padding: 0 14px; font-size: 13px; background: #f5f5f7; color: #000; border-radius: 999px; display: inline-flex; align-items: center; font-weight: 500; }
@media (max-width: 734px) { .links { display: none; } }

/* ── Ouverture : le texte, puis la médaille qui tourne au défilement ── */
.hero { position: relative; height: 240svh; }
.hero .stick { position: sticky; top: 0; height: 100svh; display: grid; grid-template-rows: auto 1fr; justify-items: center; text-align: center; overflow: hidden; padding-top: calc(48px + env(safe-area-inset-top, 0px) + 6vh); }
.hero .copy { display: grid; justify-items: center; gap: 16px; will-change: transform, opacity; }
.chip { display: inline-flex; align-items: center; gap: 8px; height: 30px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line);
  background: rgba(255,255,255,.04); font-size: 13px; color: var(--soft); }
.chip b { color: var(--ink); font-weight: 600; }
.chip i { width: 6px; height: 6px; border-radius: 50%; background: var(--ember); box-shadow: 0 0 10px var(--ember); }
.hero h1 { font-size: clamp(46px, 8.4vw, 92px); line-height: 1.04; font-weight: 700; letter-spacing: -.028em; color: #f5f5f7; }
.hero h1 span { color: #86868b; }
.hero .sub { font-size: clamp(19px, 2.3vw, 24px); line-height: 1.33; color: var(--muted); max-width: 30ch; font-weight: 500; letter-spacing: -.02em; }
.hero .sub b { color: var(--ink); font-weight: 600; }
.hero .actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; justify-content: center; margin-top: 6px; }
@media (max-width: 600px) {
  .hero .stick { padding-top: calc(48px + env(safe-area-inset-top, 0px) + 3.5vh); }
  .hero .copy { gap: 12px; }
  .hero h1 { font-size: 40px; }
  .hero .sub { font-size: 18px; max-width: 28ch; }
  .hero .actions { flex-direction: column; gap: 14px; }
  .product { width: 80vw !important; }
}
.product { position: relative; width: min(100vw, 560px, 46vh); align-self: center; margin-top: 2vh; }
.product .still { position: relative; width: 100%; aspect-ratio: 1; will-change: transform; animation: arrive 1.6s cubic-bezier(.16,1,.3,1) both .15s; }
/* Le tour de la pièce : son reflet sur le sol s'efface en dégradé, comme sous la photo fixe */
.product .still canvas { position: absolute; inset: 0; width: 100%; height: 100%;
  -webkit-mask-image: linear-gradient(to bottom, #000 78%, rgba(0,0,0,.4) 86%, transparent 97%); mask-image: linear-gradient(to bottom, #000 78%, rgba(0,0,0,.4) 86%, transparent 97%); }
/* Un reflet de lumière qui glisse sur le métal (en « overlay », le noir autour reste noir). Sans fond noir sous lui,
   Safari l'affiche tel quel là où la photo s'efface : une tache blanche en bas (vue sur iPhone le 08/11). */
.product .still { background: #000; }
.product .glint { position: absolute; inset: 0; mix-blend-mode: overlay; pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 78%, transparent 86%); mask-image: linear-gradient(to bottom, #000 78%, transparent 86%);
  background: linear-gradient(105deg, transparent 38%, rgba(255,255,255,.85) 48%, rgba(255,255,255,.25) 52%, transparent 62%);
  background-size: 260% 100%; background-position: var(--g, 115%) 0; }
@keyframes arrive { from { opacity: 0; transform: translateY(28px) scale(.965); filter: blur(8px); } to { opacity: 1; transform: none; filter: none; } }

.caption { position: absolute; left: 0; right: 0; top: calc(48px + env(safe-area-inset-top, 0px) + 9vh); padding-inline: 22px; text-align: center; font-size: clamp(30px, 5vw, 52px); line-height: 1.08; font-weight: 600; letter-spacing: -.03em;
  opacity: 0; transform: translateY(14px); transition: opacity .6s, transform .8s cubic-bezier(.16,1,.3,1); }
.caption.on { opacity: 1; transform: none; }
.caption span { color: var(--muted); display: block; }

/* Ordinateur : le texte à gauche, la pièce à droite, comme les pages produit d'Apple */
@media (min-width: 1000px) {
  .hero .stick { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: 1fr; align-items: center; justify-items: stretch;
    column-gap: 48px; max-width: 1200px; margin: 0 auto; padding-top: calc(48px + env(safe-area-inset-top, 0px)); text-align: left; }
  .hero .copy { justify-items: start; }
  .hero h1 { font-size: clamp(52px, 5.4vw, 84px); }
  .hero .sub { max-width: 27ch; }
  .hero .actions { justify-content: flex-start; }
  .product { width: min(44vw, 76vh, 640px); justify-self: center; margin-top: 0; }
  .caption { top: 50%; left: max(22px, env(safe-area-inset-left, 0px)); right: auto; width: 46%; max-width: 560px; padding-inline: 0; text-align: left; margin-top: -1.2em; }
}

/* ── Sections ───────────────────────────────────────────────────── */
section.block { max-width: 1024px; margin: 0 auto; padding-block: 120px 40px; text-align: center; display: grid; justify-items: center; gap: 18px; }
.block h2, .tall h2 { font-size: clamp(36px, 6vw, 64px); line-height: 1.05; font-weight: 700; letter-spacing: -.04em; }
.block .lead, .tall .lead { color: var(--muted); font-size: clamp(18px, 2.2vw, 21px); line-height: 1.38; max-width: 36ch; font-weight: 500; }
.ranks { display: flex; gap: clamp(8px, 3vw, 34px); align-items: flex-end; justify-content: center; margin-top: 26px; }
.ranks figure { margin: 0; display: grid; justify-items: center; gap: 10px; }
.ranks img { width: clamp(50px, 12vw, 104px); transition: transform .6s cubic-bezier(.16,1,.3,1); }
.ranks figure:last-child img { width: clamp(62px, 15vw, 130px); }
.ranks figure:hover img { transform: translateY(-8px); }
.ranks figcaption { font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: 0; }

/* La rouille, au défilement */
.tall { position: relative; }
.rust { height: 360svh; }
.rust .stick, .screens .stick { position: sticky; top: 0; height: 100svh; overflow: hidden; }
.rust .stick { display: grid; place-items: center; }
.rust .inner { display: grid; justify-items: center; gap: clamp(14px, 2.6vh, 24px); text-align: center; }
.rust .warm { position: absolute; inset: -10%; pointer-events: none; background: radial-gradient(28% 28% at 50% 44%, rgba(255,120,50,var(--heat, .45)), transparent 72%); }
.coin { position: relative; width: min(64vw, 360px, 42svh); aspect-ratio: 1; }
.coin img { position: absolute; inset: 0; width: 100%; height: 100%; }
.day { font-size: 14px; font-weight: 600; color: var(--tone, #ff7a3d); transition: color .4s; font-variant-numeric: tabular-nums; }
.rust h2 { min-height: 1.1em; }
.say { color: var(--muted); font-size: 19px; max-width: 32ch; min-height: 2.8em; font-weight: 500; }
.swap { transition: opacity .3s, transform .5s cubic-bezier(.16,1,.3,1); }
.swap.out { opacity: 0; transform: translateY(8px); }
.steps { display: flex; gap: 6px; }
.steps i { width: 26px; height: 3px; border-radius: 3px; background: rgba(255,255,255,.14); transition: background .3s; }
.steps i.on { background: var(--tone, #ff7a3d); }

/* Les écrans, qui glissent seuls */
.screens { height: 330svh; }
.screens .stick { display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto; align-content: center; padding-top: 48px; }
.screens .head h2 { font-size: clamp(28px, min(5.6vw, 6.5vh), 62px); }
@media (max-height: 760px) { .cardcap { min-height: 64px; margin-top: 4px; } .cardcap b { font-size: 19px; } .cardcap p { font-size: 16px; } }
.screens .head { text-align: center; display: grid; gap: 8px; justify-items: center; padding-bottom: 6px; }
.track { display: flex; gap: clamp(18px, 3vw, 36px); align-items: center; will-change: transform; padding-block: 12px; transform: translate3d(0,0,0); backface-visibility: hidden; }
.card { flex: 0 0 auto; width: min(56vw, 290px, calc((100svh - 270px) / 2.2)); display: grid; gap: 12px; justify-items: center; text-align: center; will-change: transform, opacity; }

.ph { border-radius: 44px; padding: 8px; background: linear-gradient(150deg, #48484c, #121214 35%, #0a0a0b 65%, #38383c); box-shadow: 0 0 0 1px rgba(255,255,255,.07) inset, 0 40px 90px rgba(0,0,0,.75); }
.ph img { border-radius: 37px; }
/* Une seule légende, fixe et lisible sous les écrans : elle change en fondu avec l'écran du centre */
.cardcap { display: grid; justify-items: center; gap: 4px; text-align: center; min-height: 76px; margin-top: 8px; }
.cardcap b { font-size: 21px; font-weight: 600; letter-spacing: -.02em; color: #f5f5f7; }
.cardcap p { font-size: 17px; line-height: 1.35; color: #c7c7cc; max-width: 30ch; font-weight: 500; }
.cardcap b, .cardcap p { transition: opacity .25s, transform .4s cubic-bezier(.16,1,.3,1); }
.cardcap.out b, .cardcap.out p { opacity: 0; transform: translateY(6px); }
.dots { display: flex; gap: 8px; justify-content: center; margin-top: 4px; }
.dots i { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,.2); transition: background .3s, transform .3s; }
.dots i.on { background: #f5f5f7; transform: scale(1.3); }

/* Fondateur : une carte, l'éclipse dans un cercle propre */
.founder { max-width: 1024px; margin: 0 auto; padding-block: 120px 20px; }
.fcard { position: relative; border-radius: 34px; border: 1px solid var(--line); background: radial-gradient(80% 90% at 80% 30%, rgba(255,214,150,.07), transparent 60%), var(--card);
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px; align-items: center; padding: clamp(28px, 5vw, 56px); overflow: hidden; }
@media (max-width: 760px) { .fcard { grid-template-columns: 1fr; gap: 6px; } .fcard .orb { order: -1; width: min(70vw, 300px); } }
.fcard h2 { font-size: clamp(32px, 5vw, 52px); line-height: 1.05; font-weight: 700; letter-spacing: -.04em; margin-top: 8px; }
.fcard .lead { color: var(--muted); font-size: 18px; max-width: 34ch; margin-top: 12px; font-weight: 500; }
.specs { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 14px; }
.specs li { display: grid; grid-template-columns: 22px 1fr; column-gap: 12px; font-size: 16px; text-align: left; }
.specs li b { font-weight: 600; grid-column: 2; }
.specs li span { color: var(--muted); grid-column: 2; }
.specs li::before { content: ""; grid-row: 1 / span 2; width: 22px; height: 22px; border-radius: 50%; background: radial-gradient(circle, #000 40%, #ffd796 44%, rgba(255,215,150,.25) 60%, transparent 70%); margin-top: 1px; }

.orb { position: relative; width: min(74vw, 340px); aspect-ratio: 1; border-radius: 50%; overflow: hidden; background: #000; justify-self: center;
  -webkit-mask-image: radial-gradient(circle, #000 62%, transparent 71%); mask-image: radial-gradient(circle, #000 62%, transparent 71%); }
.orb canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.orb .num { position: absolute; inset: 0; display: grid; place-items: center; font-weight: 700; font-size: clamp(46px, 11vw, 80px); letter-spacing: -.04em;
  background: linear-gradient(180deg, #fff 0%, #f2f3f6 46%, #9a9ea8 54%, #e4e6eb 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Le prix, puis la fin */
.price { max-width: 1024px; margin: 0 auto; padding-block: 120px 120px; text-align: center; display: grid; justify-items: center; gap: 18px; }
.price h2 { font-size: clamp(40px, 7vw, 76px); line-height: 1.02; font-weight: 700; letter-spacing: -.045em; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: min(100%, 560px); margin-top: 18px; }
.plan { border: 1px solid var(--line); border-radius: 22px; padding: 22px; background: var(--card); text-align: left; display: grid; gap: 4px; }
.plan.best { border-color: rgba(255,122,61,.5); background: linear-gradient(160deg, rgba(255,122,61,.12), transparent 60%), var(--card); }
.plan .k { font-size: 13px; color: var(--muted); font-weight: 600; }
.plan .v { font-size: 30px; font-weight: 700; letter-spacing: -.03em; }
.plan .v small { display: block; font-size: 15px; color: var(--muted); font-weight: 500; letter-spacing: -.01em; margin-top: 2px; }
.plan .n { font-size: 13px; color: var(--soft); }
.price .lead { color: var(--muted); font-size: clamp(18px, 2.2vw, 21px); max-width: 34ch; font-weight: 500; margin-bottom: 8px; }

footer { border-top: 1px solid rgba(255,255,255,.08); background: #0a0a0b; color: var(--muted); font-size: 12px; letter-spacing: -.005em; }
footer .in { max-width: 1024px; margin: 0 auto; padding-block: 30px 44px; display: grid; gap: 22px; }
.cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 600px) { .cols { grid-template-columns: 1fr 1fr; } }
.cols b { display: block; color: var(--ink); font-weight: 600; margin-bottom: 8px; }
.cols a { display: block; padding: 3px 0; color: var(--muted); }
.cols a:hover { color: var(--ink); text-decoration: underline; }
.legal { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; border-top: 1px solid rgba(255,255,255,.08); padding-top: 16px; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: .001ms !important; animation: none !important; } }