/* Gakushu · site de présentation. Encre, papier crème, rouge vermillon. */

@font-face { font-family: "Bricolage"; src: url("/fonts/bricolage.woff2") format("woff2"); font-weight: 200 800; font-display: swap; }
@font-face { font-family: "Inter"; src: url("/fonts/inter.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Instrument"; src: url("/fonts/instrument-italic.woff2") format("woff2"); font-style: italic; font-weight: 400; font-display: swap; }
@font-face { font-family: "Mincho"; src: url("/fonts/mincho-gaku.woff2") format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+5B66; }
@font-face { font-family: "Mincho"; src: url("/fonts/mincho-shu.woff2") format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+7FD2; }
@font-face { font-family: "Mincho"; src: url("/fonts/mincho-kana.woff2") format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+3041-3096; }
@font-face { font-family: "Mincho"; src: url("/fonts/mincho-ponct.woff2") format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+3010-3011; }

:root {
  --paper: #F7F1E8;
  --paper-2: #EFE6D8;
  --paper-3: #E6DAC7;
  --card: #FFFDF9;
  --ink: #1B1416;
  --ink-2: #4E4347;
  --ink-3: #7A6D70;
  --line: rgba(27, 20, 22, .12);
  --red: #D12A3A;
  --red-deep: #8C1223;
  --red-ink: #B51E2F;
  --pink: #F2C4CC;
  --green: #2F5D50;
  --night: #141012;
  --night-2: #1E181A;
  --on-night: #F5EEEF;
  --on-night-2: #C2B6B9;

  --f-display: "Bricolage", "Inter", system-ui, sans-serif;
  --f-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-serif: "Instrument", "Iowan Old Style", Georgia, serif;
  --f-jp: "Mincho", "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;

  --wrap: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --r-s: 12px; --r-m: 20px; --r-l: 32px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --shadow-1: 0 1px 2px rgba(27,20,22,.06), 0 8px 24px rgba(27,20,22,.06);
  --shadow-2: 0 2px 4px rgba(27,20,22,.08), 0 24px 60px rgba(60,16,24,.18);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 17px/1.6 var(--f-body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
/* Grain de papier, très léger. */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 100; pointer-events: none; opacity: .35; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .1 0 0 0 0 .08 0 0 0 0 .08 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}
img, video, svg { display: block; max-width: 100%; }
img, video { height: auto; }
a { color: inherit; }
h1, h2, h3, p, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--red); color: #fff; }

.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: fixed; left: 16px; top: -60px; z-index: 200; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; transition: top .2s; }
.skip:focus { top: 16px; }
.jp, [lang="ja"] { font-family: var(--f-jp); font-weight: 800; }
em { font-family: var(--f-serif); font-style: italic; font-weight: 400; letter-spacing: -.01em; }

/* Apparition au défilement */
.reveal { opacity: 0; transform: translate3d(0, 28px, 0); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: var(--d, 0ms); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ───────── Navigation ───────── */
.nav {
  position: fixed; inset: 14px 0 auto 0; z-index: 50; margin-inline: auto;
  width: min(100% - 2 * var(--gutter), var(--wrap));
  display: flex; align-items: center; gap: 24px; padding: 10px 12px 10px 14px;
  border-radius: 999px; border: 1px solid transparent;
  transition: background .35s, border-color .35s, box-shadow .35s, backdrop-filter .35s;
}
.nav.stuck { background: rgba(247, 241, 232, .78); backdrop-filter: saturate(1.6) blur(18px); -webkit-backdrop-filter: saturate(1.6) blur(18px); border-color: var(--line); box-shadow: var(--shadow-1); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-name { font: 700 20px/1 var(--f-display); letter-spacing: -.02em; }
.hanko {
  display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 9px;
  background: var(--red); color: #fff; font: 800 15px/1 var(--f-jp); letter-spacing: -.02em;
  box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.35), 0 4px 12px rgba(209,42,58,.35);
}
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a { white-space: nowrap; text-decoration: none; font-size: 15px; font-weight: 500; color: var(--ink-2); padding: 10px 14px; border-radius: 999px; transition: color .2s, background .2s; }
.nav-links a:hover { color: var(--ink); background: rgba(27,20,22,.06); }
.pill {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  background: var(--ink); color: #fff; font-weight: 600; border-radius: 999px;
}
.pill svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.pill-nav { font-size: 14px; padding: 10px 16px; }
.pill-big { font-size: 17px; padding: 16px 26px; box-shadow: 0 10px 30px rgba(27,20,22,.25); }
.pill-big svg { width: 20px; height: 20px; }
.pill-light { background: #fff; color: var(--ink); }
.burger { display: none; width: 44px; height: 44px; border-radius: 50%; position: relative; }
.burger span { position: absolute; left: 12px; right: 12px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease), top .3s var(--ease); }
.burger span:first-child { top: 17px; } .burger span:last-child { top: 25px; }
.burger[aria-expanded="true"] span:first-child { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { top: 21px; transform: rotate(-45deg); }

/* ───────── Appareils ───────── */
.device { position: relative; }
.device .bezel { display: block; position: relative; box-sizing: border-box; }
.device .screen { display: block; position: relative; overflow: hidden; background: #000; }
.device .screen img, .device .screen video { display: block; width: 100%; height: 100%; object-fit: cover; background: #000; }
/* Reflet très léger sur la vitre. */
.device .screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(115deg, rgba(255,255,255,.10) 0%, rgba(255,255,255,0) 36%); }

/* Les cadres n'utilisent que des pourcentages et des pixels (Safari 15 sur iPad ne connaît pas les unités de conteneur).
   Un padding en % se calcule sur la largeur de l'appareil, un rayon en % sur la largeur puis la hauteur : « a% / b% » donne un coin rond. */

/* iPad Pro 11 pouces, paysage : cadre en aluminium, bordure noire régulière, caméra sur le bord haut. */
.ipad .bezel {
  padding: 2.1%; border: 3px solid transparent; border-radius: 4.3% / 6.2%;
  background: linear-gradient(#0a0a0b, #0a0a0b) padding-box,
              linear-gradient(140deg, #ececef 0%, #9a9aa0 30%, #44444a 62%, #b9b9bf 100%) border-box;
  box-shadow: 0 2px 6px rgba(20,10,12,.18), 0 22px 52px rgba(60,16,24,.30);
}
.ipad .screen { aspect-ratio: 2420 / 1668; border-radius: 1.8% / 2.6%; }
.ipad .bezel::before {
  content: ""; position: absolute; top: 1.1%; left: 50%; width: .6%; transform: translateX(-50%); border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #2b3650, #06070b 70%);
}
.ipad .bezel::before { padding-top: .6%; } /* hauteur = largeur : un padding en % se calcule sur la largeur du cadre */

/* iPhone 17 Pro : le contour est un dessin SVG (cadre en titane, lunette, îlot dynamique, barre d'accueil, boutons) posé sur la capture,
   que le simulateur fournit sans îlot ni barre. L'écran est légèrement plus grand que l'ouverture du dessin pour qu'aucun liseré ne passe. */
.iphone .bezel { aspect-ratio: 1028 / 2089.6; filter: drop-shadow(0 3px 6px rgba(20,10,12,.20)) drop-shadow(0 28px 36px rgba(60,16,24,.30)); }
.iphone .screen { position: absolute; left: 4.669%; top: 1.627%; width: 90.661%; height: 96.745%; border-radius: 13.63% / 6.28%; }
.iphone .bezel::after { content: ""; position: absolute; inset: 0; background: url("/img/frame-iphone.svg?v=25") 0 0 / 100% 100% no-repeat; pointer-events: none; }

/* ───────── Héros ───────── */
.hero { position: relative; padding: clamp(120px, 15vh, 170px) 0 clamp(70px, 9vh, 120px); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.sun {
  position: absolute; right: -6vw; top: 8%; width: min(62vw, 880px); aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #EE4A58 0%, var(--red) 45%, var(--red-deep) 100%);
  box-shadow: 0 0 140px rgba(209,42,58,.25);
}
.kanji-giant {
  position: absolute; left: -2vw; top: 4%; display: flex; flex-direction: column; line-height: .92;
  font: 800 clamp(200px, 30vw, 460px)/.92 var(--f-jp); color: transparent; -webkit-text-stroke: 1.5px rgba(27,20,22,.09);
  user-select: none;
}
.petal { position: absolute; width: 34px; fill: var(--pink); opacity: .9; filter: drop-shadow(0 6px 10px rgba(140,18,35,.15)); }
.p1 { left: 46%; top: 16%; transform: rotate(-30deg); }
.p2 { left: 8%; top: 62%; width: 24px; transform: rotate(40deg); }
.p3 { right: 6%; top: 70%; width: 44px; transform: rotate(110deg); fill: #fff; opacity: .75; }
.p4 { left: 58%; top: 84%; width: 20px; transform: rotate(-70deg); }
.p5 { right: 30%; top: 6%; width: 26px; transform: rotate(160deg); fill: #fff; opacity: .7; }

.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr); gap: clamp(24px, 4vw, 64px); align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 600; color: var(--ink-2); letter-spacing: .01em; }
.eyebrow .jp { font-size: 22px; color: var(--red); line-height: 1; white-space: nowrap; }
.eyebrow-sep { flex: none; }
.eyebrow-sep { width: 28px; height: 1.5px; background: var(--ink); opacity: .4; }
h1 {
  margin-top: 22px; font: 700 clamp(44px, 6.300vw, 92px)/.98 var(--f-display); letter-spacing: -.045em; text-wrap: balance;
}
h1 em { color: var(--red); letter-spacing: -.03em; font-size: 1.06em; }
.lead { margin-top: 26px; max-width: 33em; font-size: clamp(17px, 1.400vw, 20px); color: var(--ink-2); }
.hero-cta { margin-top: 34px; display: flex; flex-wrap: wrap; align-items: center; gap: 22px; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; text-decoration: none; padding: 12px 4px; border-bottom: 1.5px solid var(--ink); }
.link-arrow svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .3s var(--ease); }
.link-arrow:hover svg { transform: translateY(3px); }
.hero-facts { margin-top: 44px; display: flex; flex-wrap: wrap; gap: 14px 34px; font-size: 14px; color: var(--ink-3); }
.hero-facts li { padding-left: 14px; border-left: 2px solid var(--red); line-height: 1.35; }
.hero-facts strong { display: block; color: var(--ink); font-weight: 650; font-size: 15px; }

.hero-stage { position: relative; perspective: 1600px; margin-right: clamp(-140px, -7vw, 0px); }
.hero-ipad { transform-origin: 50% 100%; transform: rotateX(var(--tilt, 10deg)) rotateY(-6deg) rotateZ(1deg) translate3d(0, var(--lift, 0px), 0); }
.hero-iphone { position: absolute; left: -7%; bottom: -3%; width: 23%; z-index: 2; }
.float-card {
  position: absolute; z-index: 3; background: rgba(255,253,249,.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.8); border-radius: 18px; box-shadow: var(--shadow-2); font-weight: 600;
}
.fc-note { right: 9%; top: -9%; padding: 14px 18px 16px; display: grid; gap: 4px; min-width: 150px; }
.fc-label { font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .08em; }
.fc-value { font: 700 34px/1 var(--f-display); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.fc-value small { font-size: 16px; color: var(--ink-3); font-weight: 600; }
.fc-bar { height: 6px; border-radius: 6px; background: var(--paper-3); overflow: hidden; margin-top: 4px; }
.fc-bar i { display: block; width: 80%; height: 100%; background: #1C8456; border-radius: 6px; }
.fc-tag { left: 22%; bottom: -7%; padding: 12px 16px; display: inline-flex; align-items: center; gap: 8px; font-size: 14px; }
.fc-tag svg { width: 20px; height: 20px; padding: 3px; border-radius: 50%; background: #1C8456; stroke: #fff; stroke-width: 3; fill: none; stroke-linecap: round; stroke-linejoin: round; }

/* ───────── Bandeau des classes ───────── */
.classes { border-block: 1px solid var(--line); background: var(--paper-2); overflow: hidden; padding: 22px 0; }
.classes-track { display: flex; align-items: center; gap: 34px; width: max-content; font: 600 clamp(22px, 2.600vw, 34px)/1 var(--f-display); letter-spacing: -.02em; white-space: nowrap; padding-left: 6vw; will-change: transform; }
.classes-track i { width: 9px; height: 9px; border-radius: 50%; background: var(--red); flex: none; }
.classes-track span:nth-of-type(even) { font-family: var(--f-serif); font-style: italic; font-weight: 400; font-size: 1.15em; }

/* ───────── Titres de section ───────── */
.kicker { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--red-ink); display: inline-flex; align-items: center; gap: 12px; }
.kicker::before { content: ""; width: 26px; height: 2px; background: currentColor; }
.kicker.light { color: #FF8C96; }
.title { margin-top: 18px; font: 700 clamp(34px, 4.600vw, 64px)/1.02 var(--f-display); letter-spacing: -.04em; max-width: 16em; text-wrap: balance; }
.title em { color: var(--red); font-size: 1.06em; }
.title.light { color: var(--on-night); } .title.light em { color: #FF7480; }

/* ───────── Le nom ───────── */
.name { position: relative; overflow: hidden; overflow: visible clip; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 6vw, 96px); align-items: center; padding-block: clamp(90px, 14vh, 180px); }
.name-kanji { position: relative; height: clamp(320px, 42vw, 560px); }
.nk { position: absolute; font: 800 clamp(190px, 27vw, 400px)/1 var(--f-jp); color: var(--ink); will-change: transform; }
.nk-1 { left: 0; top: -4%; }
.nk-2 { right: 2%; bottom: -8%; color: var(--red); }
.seal {
  position: absolute; left: 44%; top: 40%; width: 86px; height: 86px; display: grid; place-items: center; text-align: center;
  background: var(--red); color: #fff; font: 800 27px/1.05 var(--f-jp); border-radius: 14px; transform: rotate(-8deg);
  box-shadow: inset 0 0 0 3px rgba(255,255,255,.4), 0 12px 30px rgba(209,42,58,.4);
}
.name-entry { border-left: 2px solid var(--ink); padding-left: clamp(22px, 3vw, 44px); }
.dict-word { margin-top: 18px; font-size: clamp(54px, 7vw, 104px); line-height: 1; font-weight: 800; letter-spacing: -.02em; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.dict-kana { font-size: .34em; color: var(--ink-3); letter-spacing: 0; }
.dict-read { margin-top: 14px; color: var(--ink-3); font-size: 16px; }
.dict-read em { font-size: 28px; color: var(--ink); margin-right: 6px; }
.dict-def { margin-top: 22px; font: 500 clamp(21px, 2.100vw, 28px)/1.3 var(--f-display); letter-spacing: -.02em; max-width: 22em; }
.dict-parts { margin-top: 30px; display: grid; gap: 12px; }
.dict-parts div { display: flex; align-items: center; gap: 18px; padding: 14px 18px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m); }
.dict-parts dt { font-size: 40px; line-height: 1; color: var(--red); }
.dict-parts dd { color: var(--ink-2); }
.dict-parts strong { display: block; font: 400 22px/1.1 var(--f-serif); font-style: italic; color: var(--ink); }
.dict-note { margin-top: 26px; color: var(--ink-2); max-width: 30em; }

/* ───────── La méthode ───────── */
.method { background: var(--paper-2); padding-block: clamp(80px, 12vh, 150px); border-block: 1px solid var(--line); }
.steps { margin-top: clamp(40px, 6vh, 72px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: s; }
.step { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l); padding: 26px 26px 30px; box-shadow: var(--shadow-1); transition: transform .5s var(--ease), box-shadow .5s var(--ease), opacity .9s var(--ease); }
.step:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.step:nth-child(2) { --d: 90ms; } .step:nth-child(3) { --d: 180ms; } .step:nth-child(4) { --d: 270ms; }
.step-n { font: 400 44px/1 var(--f-serif); font-style: italic; color: var(--red); }
.step-ic { position: absolute; right: 22px; top: 22px; width: 48px; height: 48px; fill: none; stroke: var(--ink); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.step-ic .fill { fill: var(--red); stroke: var(--red); }
.step-ic .on { stroke: #fff; }
.step h3 { margin-top: 44px; font: 700 23px/1.15 var(--f-display); letter-spacing: -.025em; }
.step p { margin-top: 10px; color: var(--ink-2); font-size: 16px; }

/* ───────── Fonctions ───────── */
.features { padding-top: clamp(90px, 13vh, 170px); }
.feat-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 88px); margin-top: 20px; }
.feat-sticky { position: sticky; top: 0; height: 100vh; display: grid; align-content: center; gap: 22px; }
.feat-halo { position: absolute; left: -12%; top: 18%; width: 70%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(209,42,58,.22), rgba(209,42,58,0) 68%); }
.feat-img { position: absolute; inset: 0; opacity: 0; transform: scale(1.03); transition: opacity .7s var(--ease), transform .9s var(--ease); }
.feat-img.on { opacity: 1; transform: none; }
.feat-dots { display: flex; gap: 8px; justify-content: center; position: relative; }
.feat-dots i { width: 8px; height: 8px; border-radius: 8px; background: var(--paper-3); transition: width .4s var(--ease), background .4s; }
.feat-dots i.on { width: 30px; background: var(--red); }
.feat { min-height: 86vh; display: flex; flex-direction: column; justify-content: center; opacity: .28; transition: opacity .5s var(--ease); }
.feat.on { opacity: 1; }
.feat-n { font: 400 30px/1 var(--f-serif); font-style: italic; color: var(--red); }
.feat h3 { margin-top: 12px; font: 700 clamp(28px, 3.100vw, 42px)/1.05 var(--f-display); letter-spacing: -.035em; text-wrap: balance; }
.feat p { margin-top: 16px; color: var(--ink-2); font-size: 18px; max-width: 30em; }
.ticks { margin-top: 22px; display: grid; gap: 10px; font-weight: 500; font-size: 16px; }
.ticks li { position: relative; padding-left: 30px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.500' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.500l4 4 8-9'/%3E%3C/svg%3E") center / 12px no-repeat; }
.feat-inline { display: none; margin-top: 30px; }

/* ───────── Démo ───────── */
.demo { position: relative; background: var(--night); color: var(--on-night); padding-block: clamp(90px, 13vh, 170px); overflow: hidden; margin-top: clamp(40px, 8vh, 100px); border-radius: clamp(28px, 4vw, 56px) clamp(28px, 4vw, 56px) 0 0; }
.demo-bg { position: absolute; inset: 0; pointer-events: none; }
.demo-kanji { position: absolute; right: -3vw; top: -6%; font: 800 clamp(280px, 44vw, 700px)/1 var(--f-jp); color: transparent; -webkit-text-stroke: 1.5px rgba(245,238,239,.08); }
.demo-sun { position: absolute; left: -14vw; bottom: -30%; width: 60vw; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(209,42,58,.45), rgba(209,42,58,0) 65%); }
.demo .wrap { position: relative; }
.demo-lead { margin-top: 20px; max-width: 34em; color: var(--on-night-2); font-size: 19px; }
.demo-device { margin: clamp(40px, 6vh, 70px) auto 0; max-width: 1080px; }
.demo-device .bezel { box-shadow: 0 0 0 1px rgba(255,255,255,.06), 0 40px 120px rgba(0,0,0,.65); }
.play {
  position: absolute; inset: 0; margin: auto; width: 104px; height: 104px; border-radius: 50%; display: grid; place-items: center;
  z-index: 2; background: var(--red); color: #fff; box-shadow: 0 0 0 14px rgba(209,42,58,.22), 0 20px 50px rgba(0,0,0,.45);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), opacity .3s;
}
.play svg { width: 40px; height: 40px; fill: currentColor; margin-left: 4px; }
.play:hover { transform: scale(1.07); box-shadow: 0 0 0 22px rgba(209,42,58,.18), 0 20px 50px rgba(0,0,0,.45); }
.playing .play { opacity: 0; pointer-events: none; }

/* ───────── Bento ───────── */
.bento-sec { background: var(--night); color: var(--on-night); padding-bottom: clamp(90px, 13vh, 170px); }
.bento-sec .kicker { color: #FF8C96; } .bento-sec .title em { color: #FF7480; }
.bento { margin-top: clamp(36px, 6vh, 64px); display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 18px; }
.card { position: relative; overflow: hidden; background: var(--night-2); border: 1px solid rgba(245,238,239,.09); border-radius: var(--r-l); padding: 28px; display: flex; flex-direction: column; justify-content: flex-end; min-height: 380px; }
.card h3 { font: 700 24px/1.12 var(--f-display); letter-spacing: -.03em; position: relative; }
.card p { margin-top: 10px; color: var(--on-night-2); font-size: 16px; position: relative; max-width: 34em; }
.c-paper { grid-column: span 4; min-height: 440px; }
.c-colors { min-height: 420px; }
.c-colors .card-art { inset: 0 0 36% 0; } .c-classes { grid-column: span 2; }
.c-phone { grid-column: span 2; grid-row: span 2; } .c-colors { grid-column: span 2; } .c-dark { grid-column: span 2; }
.c-search { grid-column: span 4; min-height: 370px; padding-left: 48px; padding-right: 48px; }
.c-search p { max-width: none; }
.card-art { position: absolute; inset: 0 0 42% 0; }
.art-paper { background: linear-gradient(160deg, #2a2023, #1E181A); overflow: hidden; inset: 0 0 38% 0; }
.art-paper::after { content: ""; position: absolute; inset: 70% 0 0 0; background: linear-gradient(180deg, rgba(30,24,26,0), var(--night-2)); }
.sheet { position: absolute; left: 9%; top: 16%; width: 46%; height: 150%; background: #FBF6EC; border-radius: 10px; transform: rotate(-5deg); padding: 9% 7%; display: grid; align-content: start; gap: 16px; box-shadow: 0 30px 60px rgba(0,0,0,.5); }
.sheet i { height: 7px; border-radius: 7px; background: #2b2426; opacity: .75; }
.sheet i.err { background: var(--red); opacity: 1; width: 72%; box-shadow: 0 9px 0 -3px rgba(209,42,58,.35); }
.sheet i.short { width: 55%; }
.grade { position: absolute; right: 10%; top: 26%; font: 700 clamp(48px, 6vw, 84px)/1 var(--f-display); letter-spacing: -.04em; color: #fff; padding: 18px 26px; border-radius: 24px; background: var(--red); transform: rotate(4deg); box-shadow: 0 24px 60px rgba(209,42,58,.45); font-variant-numeric: tabular-nums; }
.grade small { font-size: .4em; opacity: .8; }
.art-classes { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; padding: 24px; }
.art-classes span { font: 700 20px/1 var(--f-display); padding: 14px 16px; border-radius: 14px; border: 1px solid rgba(245,238,239,.16); color: var(--on-night-2); }
.art-classes span.on { background: var(--red); border-color: var(--red); color: #fff; transform: scale(1.18) rotate(-4deg); box-shadow: 0 14px 34px rgba(209,42,58,.45); }
.art-classes sup { font-size: .6em; }
.card-phone { position: absolute; left: 50%; top: 7%; width: 62%; translate: -50% 0; }
.c-phone::after, .c-dark::after { content: ""; position: absolute; inset: 45% 0 0 0; background: linear-gradient(180deg, rgba(30,24,26,0), var(--night-2) 62%); pointer-events: none; }
.c-phone h3, .c-phone p, .c-dark h3, .c-dark p { z-index: 2; }
.art-colors { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px; padding: 26px 28px 8px; }
.logos { display: flex; gap: 24px; }
.logo-opt { margin: 0; }
.logo-opt img { display: block; width: 92px; height: 92px; border-radius: 22px; opacity: .62; transition: opacity .3s, transform .3s var(--ease); }
.logo-opt.on img { opacity: 1; box-shadow: 0 0 0 2px var(--night-2), 0 0 0 4.5px var(--red), 0 12px 28px rgba(209,42,58,.4); transform: scale(1.06); }
.dots { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px 16px; width: min(100%, 196px); }
.dots i { aspect-ratio: 1; border-radius: 50%; background: var(--c); box-shadow: inset 0 0 0 2px rgba(255,255,255,.18); }
.dots i.on { box-shadow: 0 0 0 2px var(--night-2), 0 0 0 4px var(--c); transform: scale(1.08); }
.card-ipad { position: absolute; left: 8%; top: 9%; width: 130%; }
.art-search { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding: 30px 48px 0; inset: 0 0 auto 0; }
.sfield { display: flex; align-items: center; gap: 12px; min-width: 0; height: 56px; padding: 0 18px; border-radius: 18px; background: rgba(245,238,239,.07); border: 1px solid rgba(245,238,239,.14); font: 500 19px/1 var(--f-display); letter-spacing: -.01em; color: var(--on-night); }
.sfield span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sfield svg { flex: none; width: 22px; height: 22px; fill: none; stroke: var(--on-night-2); stroke-width: 2; stroke-linecap: round; }
.sfield b { flex: none; width: 2px; height: 24px; background: var(--red); margin-left: -6px; animation: caret 1.100s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }

/* ───────── Confidentialité ───────── */
.privacy { padding-block: clamp(90px, 13vh, 170px); }
.privacy-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.privacy-head { position: sticky; top: 120px; }
.privacy-lead { margin-top: 20px; color: var(--ink-2); font-size: 19px; max-width: 26em; }
.btn-line { margin-top: 30px; display: inline-flex; align-items: center; gap: 10px; font-weight: 600; text-decoration: none; padding: 14px 22px; border: 1.5px solid var(--ink); border-radius: 999px; transition: background .25s, color .25s; }
.btn-line svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .3s var(--ease); }
.btn-line:hover { background: var(--ink); color: #fff; } .btn-line:hover svg { transform: translateX(4px); }
.privacy-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.privacy-list li { display: grid; grid-template-columns: 52px 1fr; gap: 20px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.privacy-list svg { width: 52px; height: 52px; padding: 13px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); fill: none; stroke: var(--red-ink); stroke-width: 1.800; stroke-linecap: round; stroke-linejoin: round; }
.privacy-list h3 { font: 700 22px/1.2 var(--f-display); letter-spacing: -.025em; }
.privacy-list p { margin-top: 8px; color: var(--ink-2); }

/* ───────── Questions ───────── */
.faq { background: var(--paper-2); border-top: 1px solid var(--line); padding-block: clamp(90px, 13vh, 160px); }
.faq-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 96px); }
.faq-list { display: grid; gap: 12px; }
details { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m); transition: box-shadow .3s, opacity .9s var(--ease), transform .9s var(--ease); }
details[open] { box-shadow: var(--shadow-1); }
summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 22px 24px; font: 600 19px/1.3 var(--f-display); letter-spacing: -.02em; border-radius: var(--r-m); }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; flex: none; width: 34px; height: 34px; border-radius: 50%; background: var(--paper-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231B1416' stroke-width='2.200' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center / 16px no-repeat; transition: transform .35s var(--ease), background-color .25s; }
details[open] summary::after { transform: rotate(45deg); background-color: var(--pink); }
details p { padding: 0 24px 24px; color: var(--ink-2); max-width: 44em; }
details a { color: var(--red-ink); font-weight: 600; text-underline-offset: 3px; }

/* ───────── Appel final ───────── */
.final { position: relative; overflow: hidden; background: linear-gradient(160deg, #DD3443 0%, var(--red) 40%, var(--red-deep) 100%); color: #fff; text-align: center; padding-block: clamp(110px, 18vh, 220px); }
.final-bg { position: absolute; inset: 0; pointer-events: none; }
.final-kanji { position: absolute; font: 800 clamp(260px, 40vw, 640px)/1 var(--f-jp); color: rgba(255,255,255,.09); }
.fk1 { left: -4vw; top: -12%; } .fk2 { right: -4vw; bottom: -18%; }
.final-in { position: relative; display: grid; justify-items: center; gap: 22px; }
.hanko-big { width: 76px; height: 76px; border-radius: 18px; font-size: 31px; background: #fff; color: var(--red); box-shadow: 0 16px 40px rgba(60,6,14,.4); transform: rotate(-6deg); }
.final h2 { font: 700 clamp(44px, 7.200vw, 112px)/.98 var(--f-display); letter-spacing: -.045em; text-wrap: balance; }
.final h2 em { font-size: 1.06em; }
.final p { font-size: clamp(18px, 1.700vw, 22px); opacity: .9; }
.final .pill { margin-top: 10px; }

/* ───────── Pied de page ───────── */
.footer { background: var(--night); color: var(--on-night-2); padding: 70px 0 34px; font-size: 15px; }
.footer .brand-name { color: var(--on-night); }
.footer-grid { display: grid; grid-template-columns: 1.600fr 1fr 1fr; gap: 40px; }
.footer-brand p { margin-top: 16px; max-width: 22em; }
.footer nav { display: grid; gap: 4px; align-content: start; justify-items: start; }
.footer h2 { font: 700 13px/1 var(--f-body); letter-spacing: .12em; text-transform: uppercase; color: var(--on-night); margin-bottom: 10px; }
.footer nav a { text-decoration: none; padding: 6px 0; transition: color .2s; }
.footer nav a:hover { color: #fff; }
.footer-low { margin-top: 54px; padding-top: 24px; border-top: 1px solid rgba(245,238,239,.1); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; font-size: 13px; }

/* ───────── Adaptation ───────── */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-stage { margin: 70px 4% 40px 10%; }
  .kanji-giant { opacity: .7; }
  .sun { top: auto; bottom: -4%; right: -20vw; width: 90vw; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .c-paper, .c-search { grid-column: span 2; } .c-classes, .c-colors, .c-dark, .c-phone { grid-column: span 1; }
  .c-phone { grid-row: span 1; min-height: 460px; }
}
@media (max-width: 1020px) {
  .pill-nav { display: none; }
  .burger { display: block; margin-left: auto; }
  .nav { background: rgba(247, 241, 232, .82); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-color: var(--line); }
  .nav-links { position: absolute; top: calc(100% + 10px); left: 0; right: 0; flex-direction: column; gap: 0; margin: 0; padding: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-2); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .25s, transform .25s var(--ease), visibility .25s; }
  .nav-links.open { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { padding: 14px 16px; font-size: 17px; }
}
@media (max-width: 900px) {
  .name { grid-template-columns: 1fr; }
  .name-kanji { height: clamp(260px, 62vw, 420px); }
  .feat-grid { grid-template-columns: 1fr; }
  .feat-sticky { display: none; }
  .feat { min-height: 0; opacity: 1; padding-block: 44px; border-top: 1px solid var(--line); }
  .feat-inline { display: block; }
  .privacy-grid, .faq-grid { grid-template-columns: 1fr; }
  .privacy-head { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .hero { padding-top: 112px; }
  .kanji-giant { left: auto; right: -14vw; top: 2%; opacity: .55; }
  .hero-stage { margin: 56px 0 30px 9%; }
  .fc-note { right: 2%; top: -14%; min-width: 128px; padding: 11px 14px 13px; } .fc-value { font-size: 27px; }
  .fc-tag { left: 26%; bottom: -12%; font-size: 13px; padding: 10px 13px; }
  .hero-facts { gap: 14px 22px; }
  .steps { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  .c-paper, .c-search, .c-classes, .c-colors, .c-dark, .c-phone { grid-column: span 1; }
  .card { min-height: 0; padding: 204px 24px 24px; }
  .card-art, .art-paper { inset: 0 0 auto 0; height: 184px; }
  .c-colors { padding-top: 268px; }
  .c-colors .card-art { inset: 0 0 auto 0; height: 252px; padding-top: 28px; }
  .art-search { grid-template-columns: 1fr; gap: 10px; padding: 24px 24px 0; }
  .c-search { padding-left: 24px; padding-right: 24px; }
  .sfield { height: 50px; font-size: 17px; }
  .c-search { padding-top: 270px; }
  .c-search .card-art { height: auto; }
  .c-phone, .c-dark { min-height: 440px; padding-top: 24px; }
  .grade { right: 6%; }
  .privacy-list li { grid-template-columns: 44px 1fr; gap: 16px; } .privacy-list svg { width: 44px; height: 44px; padding: 11px; }
  summary { font-size: 17px; padding: 18px 18px; } details p { padding: 0 18px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .play { width: 76px; height: 76px; } .play svg { width: 30px; height: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-ipad { --tilt: 0deg; transform: none; }
  .sfield b { animation: none; }
  * { transition-duration: .01ms !important; }
}