:root {
  --navy: #071d45;
  --navy-2: #0d2b62;
  --ink: #11213f;
  --muted: #63718a;
  --cream: #fffaf1;
  --white: #ffffff;
  --yellow: #ffb900;
  --orange: #ff8a00;
  --teal: #18b7b8;
  --pink: #ef5f86;
  --purple: #8056c7;
  --line: rgba(7, 29, 69, .12);
  --shadow: 0 24px 70px rgba(18, 34, 67, .12);
  --radius: 28px;
  --shell: min(1180px, calc(100vw - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: Inter, Avenir, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
button, input, select { font: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { color: inherit; }
.shell { width: var(--shell); margin-inline: auto; }
.section-pad { padding: 112px 0; }
.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 1000; background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 16px; }

.page-glow { position: fixed; border-radius: 50%; filter: blur(90px); pointer-events: none; z-index: -2; opacity: .22; }
.glow-a { width: 460px; height: 460px; background: var(--teal); top: 10%; left: -280px; }
.glow-b { width: 520px; height: 520px; background: var(--pink); top: 42%; right: -340px; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(7,29,69,.08);
}
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: .08em; color: var(--navy); }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 26px; color: #40506c; font-size: .94rem; font-weight: 700; }
.nav-links a:not(.button):hover { color: var(--navy); }
.nav-toggle { display: none; border: 0; background: transparent; width: 42px; height: 42px; padding: 9px; }
.nav-toggle span:not(.sr-only) { display: block; height: 2px; background: var(--navy); margin: 5px 0; border-radius: 2px; }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 999px; padding: 15px 23px;
  background: linear-gradient(135deg, var(--navy), #173f83); color: #fff;
  font-weight: 800; box-shadow: 0 12px 30px rgba(7,29,69,.22); cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(7,29,69,.28); }
.button-small { padding: 10px 17px; }
.button-ghost { background: #fff; color: var(--navy); border: 1px solid var(--line); box-shadow: none; }

.hero { min-height: 790px; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 68px; position: relative; }
.eyebrow, .kicker { color: var(--teal); text-transform: uppercase; letter-spacing: .12em; font-size: .76rem; font-weight: 900; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; background: rgba(24,183,184,.08); border: 1px solid rgba(24,183,184,.2); border-radius: 999px; }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 5px rgba(24,183,184,.12); }
.hero h1 { font-size: clamp(3.2rem, 6.2vw, 6.3rem); line-height: .97; letter-spacing: -.065em; margin: 26px 0 26px; color: var(--navy); }
.hero h1 span, .section-heading h2 span, .immersive-copy h2 span, .maker-section h2 span, .roadmap-section h2 span { background: linear-gradient(90deg, var(--teal), var(--orange), var(--pink), var(--purple)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead { max-width: 650px; font-size: 1.18rem; color: var(--muted); }
.hero-actions { display: flex; gap: 13px; flex-wrap: wrap; margin: 32px 0 26px; }
.status-row { display: flex; flex-wrap: wrap; gap: 9px; }
.status-row span { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: #4e5f7c; font-size: .82rem; font-weight: 700; background: rgba(255,255,255,.72); }
.hero-visual { position: relative; min-height: 620px; display: grid; place-items: center; }
.logo-halo { position: absolute; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(255,185,0,.2), rgba(24,183,184,.08) 45%, transparent 70%); animation: pulse 6s ease-in-out infinite; }
.hero-logo { position: relative; width: min(560px, 100%); filter: drop-shadow(0 24px 32px rgba(7,29,69,.1)); }
.floating-card { position: absolute; background: rgba(255,255,255,.88); border: 1px solid rgba(7,29,69,.1); box-shadow: var(--shadow); border-radius: 18px; padding: 13px 17px; backdrop-filter: blur(12px); display: flex; flex-direction: column; animation: float 5.5s ease-in-out infinite; }
.floating-card strong { color: var(--navy); font-size: .9rem; }
.floating-card span { color: var(--muted); font-size: .72rem; }
.float-one { top: 80px; right: -12px; }
.float-two { bottom: 94px; left: -5px; animation-delay: -2s; }
.float-three { top: 310px; right: -34px; animation-delay: -3.4s; }

.trust-strip { background: var(--navy); color: #fff; padding: 26px 0; position: relative; overflow: hidden; }
.trust-strip::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 15% 50%, rgba(24,183,184,.18), transparent 30%), radial-gradient(circle at 85% 50%, rgba(239,95,134,.2), transparent 30%); }
.trust-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4,1fr); }
.trust-grid article { padding: 7px 26px; border-right: 1px solid rgba(255,255,255,.14); }
.trust-grid article:last-child { border: 0; }
.trust-grid strong { display: block; color: var(--yellow); font-size: 1.05rem; }
.trust-grid span { display: block; color: rgba(255,255,255,.72); font-size: .85rem; margin-top: 3px; }

.section-heading { max-width: 810px; margin-bottom: 52px; }
.section-heading h2, .immersive-copy h2 { color: var(--navy); font-size: clamp(2.5rem, 5vw, 4.8rem); line-height: 1.06; letter-spacing: -.055em; margin: 12px 0 18px; }
.section-heading p, .immersive-copy > p { color: var(--muted); font-size: 1.08rem; max-width: 710px; }
.section-heading.light h2, .section-heading.light p, .maker-section .section-heading p, .roadmap-section .section-heading p { color: #fff; }
.section-heading.light p { color: rgba(255,255,255,.72); }

.demo-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 34px; align-items: center; }
.reader-demo { border-radius: 34px; background: #fff; box-shadow: 0 30px 90px rgba(7,29,69,.16); border: 1px solid rgba(7,29,69,.09); overflow: hidden; min-height: 540px; }
.reader-topbar, .reader-bottombar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 22px; background: #f7f9fc; color: #60708c; font-size: .8rem; font-weight: 800; }
.reader-dot { display: inline-block; width: 8px; height: 8px; background: var(--teal); border-radius: 50%; margin-right: 7px; }
.reader-progress { width: 130px; height: 5px; background: #dfe5ef; border-radius: 999px; overflow: hidden; }
.reader-progress span { display: block; height: 100%; width: 22%; background: linear-gradient(90deg,var(--teal),var(--yellow)); transition: width .35s ease; }
.reader-page { min-height: 422px; padding: 48px 55px 36px; position: relative; background: radial-gradient(circle at 80% 0%, rgba(255,185,0,.08), transparent 30%), #fffefb; }
.reader-scene { color: var(--teal); text-transform: uppercase; letter-spacing: .13em; font-size: .72rem; font-weight: 900; }
.reader-page p { font-family: Georgia, serif; font-size: 1.3rem; line-height: 1.85; color: #24334f; }
.choice-stack { display: grid; gap: 10px; margin-top: 26px; }
.choice-stack button { text-align: left; padding: 15px 17px; border-radius: 14px; border: 1px solid rgba(7,29,69,.12); background: #fff; color: var(--navy); cursor: pointer; font-weight: 800; transition: all .2s ease; }
.choice-stack button:hover { border-color: var(--teal); transform: translateX(4px); box-shadow: 0 10px 24px rgba(7,29,69,.08); }
.demo-result { padding: 14px 16px; border-radius: 14px; background: rgba(24,183,184,.09); color: #176f71; font-weight: 800; }
.dice-zone { display: flex; gap: 18px; align-items: center; margin-top: 28px; padding: 18px; background: #f7f9fc; border-radius: 18px; }
.dice { width: 68px; height: 68px; border: 0; color: #fff; background: conic-gradient(from 45deg,var(--teal),var(--navy),var(--purple),var(--pink),var(--orange),var(--teal)); clip-path: polygon(50% 0%, 95% 25%, 83% 78%, 50% 100%, 17% 78%, 5% 25%); cursor: pointer; font-weight: 900; font-size: 1.15rem; transition: transform .3s ease; }
.dice.rolling { transform: rotate(720deg) scale(1.08); }
.dice-zone div { display: flex; flex-direction: column; }
.dice-zone div span { color: var(--muted); font-size: .85rem; }
.reader-bottombar button { border: 0; background: transparent; color: var(--navy); font-weight: 800; cursor: pointer; }
.inventory { display: flex; gap: 8px; align-items: center; }
.inventory strong { color: var(--navy); }
.story-engine { padding: 12px 0; }
.engine-node { display: flex; gap: 15px; align-items: flex-start; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 12px 35px rgba(7,29,69,.06); }
.engine-node.active { border-color: rgba(24,183,184,.45); background: linear-gradient(135deg,rgba(24,183,184,.08),#fff); }
.engine-node > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: var(--navy); color: #fff; font-weight: 900; font-size: .78rem; }
.engine-node div { display: flex; flex-direction: column; }
.engine-node small { color: var(--muted); }
.engine-line { width: 2px; height: 28px; background: linear-gradient(var(--teal), var(--yellow)); margin-left: 37px; }

.accessibility-section { background: var(--navy); color: #fff; overflow: hidden; position: relative; }
.accessibility-section::before { content:""; position:absolute; width:650px; height:650px; border-radius:50%; background:rgba(24,183,184,.12); filter:blur(40px); top:-280px; right:-220px; }
.accessibility-lab { position: relative; display: grid; grid-template-columns: .78fr 1.22fr; gap: 28px; }
.reading-controls, .reading-preview { border: 1px solid rgba(255,255,255,.13); border-radius: 28px; background: rgba(255,255,255,.07); backdrop-filter: blur(12px); }
.reading-controls { padding: 26px; }
.control-group { margin-bottom: 22px; }
.control-group label { display: flex; justify-content: space-between; gap: 18px; font-size: .86rem; font-weight: 800; }
.control-group output { color: var(--yellow); }
input[type="range"] { width: 100%; accent-color: var(--teal); }
.segmented { display: grid; grid-template-columns: 1fr 1fr; background: rgba(255,255,255,.07); padding: 4px; border-radius: 12px; margin-bottom: 20px; }
.segmented button { border: 0; background: transparent; color: rgba(255,255,255,.65); padding: 10px; border-radius: 9px; cursor: pointer; font-size: .8rem; font-weight: 800; }
.segmented button.active { background: #fff; color: var(--navy); }
.toggle-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.toggle-grid label { cursor: pointer; }
.toggle-grid input { position: absolute; opacity: 0; }
.toggle-grid span { display: block; padding: 11px 12px; border: 1px solid rgba(255,255,255,.13); border-radius: 11px; color: rgba(255,255,255,.72); font-size: .77rem; font-weight: 800; text-align: center; transition: all .2s ease; }
.toggle-grid input:checked + span { background: var(--teal); border-color: var(--teal); color: #052a36; }
.reading-preview { padding: 25px; background: #fffdf7; color: var(--ink); min-height: 470px; position: relative; }
.preview-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 15px; color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 900; border-bottom: 1px solid var(--line); padding-bottom: 14px; }
.preview-toolbar button { border: 0; background: rgba(24,183,184,.1); color: #177a7b; border-radius: 999px; padding: 8px 12px; cursor: pointer; text-transform: none; letter-spacing: 0; font-size: .75rem; }
.sample-text { margin-top: 34px; font-family: Georgia, serif; font-size: 22px; line-height: 1.7; letter-spacing: 0; text-align: left; transition: all .2s ease; }
.sample-text .guided-group { transition: opacity .2s ease, filter .2s ease; }
.sample-text.guided .guided-group { opacity: .13; filter: blur(.6px); }
.sample-text.guided .guided-group.visible { opacity: 1; filter: none; }
.tool-word, .silent-letter, .liaison-mark, .grapheme { transition: all .2s ease; }
.sample-text.show-tools .tool-word { padding: 0 5px 2px; border: 2px solid var(--orange); border-radius: 7px; }
.liaison-mark { display: none; color: var(--purple); font-weight: 900; }
.sample-text.show-links .liaison-mark { display: inline; }
.silent-letter { text-decoration: none; color: inherit; }
.sample-text.show-silent .silent-letter { color: #a6adba; text-decoration: underline dotted; }
.sample-text.show-graphemes .grapheme { color: #fff; background: var(--purple); border-radius: 999px; padding: 0 4px 2px; }
.syllable-word > span { transition: color .2s ease; }
.sample-text.show-syllables .syllable-word > span:nth-child(odd) { color: var(--teal); }
.sample-text.show-syllables .syllable-word > span:nth-child(even) { color: var(--pink); }
.dictionary-word { border: 0; background: transparent; padding: 0; color: inherit; font: inherit; border-bottom: 1px dashed var(--teal); cursor: pointer; }
.dictionary-popover { position: absolute; right: 25px; bottom: 76px; max-width: 320px; padding: 17px; background: var(--navy); color: #fff; border-radius: 16px; box-shadow: var(--shadow); }
.dictionary-popover p { margin: 4px 0 0; color: rgba(255,255,255,.74); font-size: .85rem; }
.guided-next { position: absolute; right: 25px; bottom: 24px; border: 0; border-radius: 999px; background: var(--navy); color: #fff; padding: 10px 15px; cursor: pointer; font-weight: 800; }
.feature-ribbon { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 9px; }
.feature-ribbon span { border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.07); border-radius: 999px; padding: 8px 12px; color: rgba(255,255,255,.75); font-size: .78rem; font-weight: 700; }

.level-showcase { border: 1px solid var(--line); border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); display: grid; grid-template-columns: 300px 1fr; min-height: 360px; }
.level-tabs { background: #f5f7fb; padding: 18px; display: grid; gap: 9px; }
.level-tabs button { border: 0; background: transparent; padding: 16px; border-radius: 14px; text-align: left; color: var(--navy); font-weight: 900; cursor: pointer; }
.level-tabs button span { display: block; font-size: .75rem; color: var(--muted); font-weight: 600; }
.level-tabs button.active { background: var(--navy); color: #fff; box-shadow: 0 14px 30px rgba(7,29,69,.2); }
.level-tabs button.active span { color: rgba(255,255,255,.65); }
.level-paper { padding: 60px; display: flex; flex-direction: column; justify-content: center; background: radial-gradient(circle at 100% 0%, rgba(255,185,0,.12), transparent 35%), #fffefb; }
.level-label { color: var(--teal); font-size: .77rem; font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.level-paper p { font-family: Georgia, serif; font-size: clamp(1.35rem, 2.3vw, 2rem); line-height: 1.8; color: #283751; max-width: 740px; }

.immersive-section { background: linear-gradient(135deg,#fff9ef,#f8fbff); }
.immersive-grid { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 70px; }
.check-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.check-columns ul { padding: 0; margin: 0; list-style: none; }
.check-columns li { position: relative; padding-left: 23px; margin: 12px 0; color: #4e5f7a; }
.check-columns li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 900; }
.device-stage { min-height: 600px; position: relative; display: grid; place-items: center; }
.device { position: absolute; box-shadow: 0 32px 80px rgba(7,29,69,.2); }
.e-reader { width: 345px; height: 500px; background: #14171c; border-radius: 24px; padding: 22px 17px 28px; transform: rotate(-7deg) translateX(-70px); }
.device-speaker { width: 60px; height: 4px; border-radius: 99px; background: #363b44; margin: 0 auto 16px; }
.screen { height: 100%; border-radius: 8px; overflow: hidden; padding: 34px 28px; }
.paper-screen { background: #f2f0e8; color: #1f2a3c; }
.paper-screen small, .color-screen small { font-weight: 900; letter-spacing: .14em; opacity: .65; }
.paper-screen h3, .color-screen h3 { font-family: Georgia,serif; font-size: 2rem; line-height: 1.1; }
.paper-screen p { font-family: Georgia,serif; line-height: 1.85; }
.screen-choice { border: 1px solid #6d7178; border-radius: 10px; padding: 12px; margin-top: 34px; font-size: .8rem; font-weight: 800; }
.phone { width: 250px; height: 480px; border-radius: 38px; background: #071229; padding: 10px; transform: rotate(7deg) translate(125px,52px); }
.phone-notch { position: absolute; top: 17px; left: 50%; transform: translateX(-50%); width: 86px; height: 20px; background: #071229; border-radius: 999px; z-index: 2; }
.color-screen { border-radius: 30px; background: radial-gradient(circle at 70% 20%,#334fc0,transparent 34%), linear-gradient(160deg,#101b49,#120d30 65%,#401744); color: #fff; padding-top: 70px; }
.color-screen p { color: rgba(255,255,255,.72); }
.scene-stars { position: absolute; inset: 42px 20px auto; height: 120px; background-image: radial-gradient(circle,#fff 1px,transparent 1.5px), radial-gradient(circle,var(--yellow) 1.5px,transparent 2px); background-size: 32px 32px,51px 51px; opacity: .7; }
.offline-badge { position: absolute; right: 0; bottom: 32px; padding: 15px 18px; border-radius: 17px; background: #fff; box-shadow: var(--shadow); color: var(--muted); font-size: .75rem; }
.offline-badge strong { display: block; color: var(--navy); }

.import-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.import-card { padding: 30px; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: 0 15px 45px rgba(7,29,69,.07); }
.import-icon { width: 66px; height: 66px; border-radius: 18px; display: grid; place-items: center; background: linear-gradient(135deg,var(--navy),#244d92); color: #fff; font-size: .82rem; font-weight: 900; letter-spacing: .05em; }
.import-card:nth-child(2) .import-icon { background: linear-gradient(135deg,var(--teal),#08787a); }
.import-card:nth-child(3) .import-icon { background: linear-gradient(135deg,var(--purple),var(--pink)); font-size: 1.7rem; }
.import-card h3 { color: var(--navy); font-size: 1.35rem; margin-bottom: 8px; }
.import-card p { color: var(--muted); min-height: 92px; }
.status { display: inline-flex; border-radius: 999px; padding: 6px 10px; font-size: .7rem; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.status.available, .tag.available, .dot.available { background: rgba(24,183,184,.13); color: #0a7779; }
.status.planned, .tag.planned, .dot.planned { background: rgba(128,86,199,.12); color: #6840ac; }

.maker-section { background: #081c43; color: #fff; position: relative; overflow: hidden; }
.maker-section::before { content:""; position:absolute; width:760px; height:760px; border-radius:50%; background:rgba(128,86,199,.16); filter:blur(50px); top:140px; left:-380px; }
.maker-workspace { position: relative; display: grid; grid-template-columns: 160px 1fr 250px; min-height: 540px; background: #f7f9fc; border-radius: 25px; overflow: hidden; box-shadow: 0 40px 100px rgba(0,0,0,.28); color: var(--ink); }
.maker-sidebar { background: #0d285b; padding: 18px 12px; display: flex; flex-direction: column; gap: 9px; }
.maker-logo { width: 42px; height: 42px; display: grid; place-items: center; margin: 0 auto 20px; border-radius: 13px; background: linear-gradient(135deg,var(--teal),var(--yellow)); color: var(--navy); font-weight: 1000; font-size: 1.4rem; }
.maker-sidebar button { border: 0; color: rgba(255,255,255,.62); background: transparent; border-radius: 10px; padding: 11px 10px; text-align: left; font-size: .76rem; cursor: pointer; }
.maker-sidebar button.active { background: rgba(255,255,255,.1); color: #fff; }
.maker-canvas { background: #edf1f8; }
.canvas-toolbar { height: 66px; padding: 0 18px; background: #fff; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; color: var(--navy); font-weight: 900; }
.canvas-toolbar button { border: 0; border-radius: 9px; background: var(--navy); color: #fff; padding: 9px 12px; font-size: .72rem; }
.node-map { height: calc(100% - 66px); position: relative; background-image: radial-gradient(rgba(7,29,69,.1) 1px,transparent 1px); background-size: 22px 22px; }
.map-node { position: absolute; width: 180px; background: #fff; border: 1px solid rgba(7,29,69,.12); border-radius: 15px; padding: 14px; box-shadow: 0 12px 25px rgba(7,29,69,.09); z-index: 2; }
.map-node span { color: var(--teal); font-size: .61rem; font-weight: 900; letter-spacing: .1em; }
.map-node strong, .map-node small { display: block; }
.map-node strong { color: var(--navy); font-size: .82rem; }
.map-node small { color: var(--muted); font-size: .68rem; }
.node-a { top: 42px; left: 45px; }
.node-b { top: 178px; left: 245px; border-color: var(--pink); }
.node-c { bottom: 40px; left: 90px; }
.node-d { bottom: 44px; right: 54px; }
.map-link { position: absolute; height: 2px; background: linear-gradient(90deg,var(--teal),var(--pink)); transform-origin: left center; z-index: 1; }
.link-a { width: 210px; top: 144px; left: 185px; transform: rotate(22deg); }
.link-b { width: 190px; top: 290px; left: 290px; transform: rotate(133deg); }
.link-c { width: 185px; top: 292px; left: 376px; transform: rotate(47deg); }
.maker-properties { padding: 20px; background: #fff; border-left: 1px solid var(--line); }
.property-title { font-weight: 900; color: var(--navy); margin-bottom: 20px; }
.maker-properties label { display: block; color: var(--muted); font-size: .7rem; font-weight: 800; margin-bottom: 14px; }
.maker-properties input, .maker-properties select { width: 100%; margin-top: 5px; border: 1px solid var(--line); border-radius: 9px; padding: 9px; color: var(--ink); font-size: .73rem; }
.maker-properties button { width: 100%; border: 0; border-radius: 10px; background: var(--teal); color: #032e3a; padding: 10px; font-weight: 900; cursor: pointer; }
.maker-features { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 50px; }
.maker-features span { border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.05); padding: 8px 11px; border-radius: 999px; color: rgba(255,255,255,.7); font-size: .76rem; }
.author-promise { position: relative; display: grid; grid-template-columns: 1fr 340px; gap: 50px; align-items: center; padding: 42px; border-radius: 28px; background: linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.03)); border: 1px solid rgba(255,255,255,.13); }
.author-promise h3 { font-size: clamp(2rem,4vw,3.5rem); line-height: 1.06; margin: 10px 0 16px; }
.author-promise p { color: rgba(255,255,255,.7); }
.royalty-card { background: #fff; color: var(--ink); padding: 24px; border-radius: 20px; transform: rotate(2deg); }
.royalty-card > span { color: var(--teal); font-weight: 900; font-size: .7rem; letter-spacing: .1em; }
.royalty-card > strong { display: block; font-size: 3rem; color: var(--navy); line-height: 1; margin: 8px 0 18px; }
.royalty-chart { height: 90px; display: flex; align-items: end; gap: 8px; }
.royalty-chart i { flex: 1; background: linear-gradient(var(--teal),var(--navy)); border-radius: 5px 5px 0 0; }
.royalty-chart i:nth-child(1){height:28%}.royalty-chart i:nth-child(2){height:42%}.royalty-chart i:nth-child(3){height:34%}.royalty-chart i:nth-child(4){height:68%}.royalty-chart i:nth-child(5){height:55%}.royalty-chart i:nth-child(6){height:82%}.royalty-chart i:nth-child(7){height:100%}
.royalty-card small { color: var(--muted); }

.audience-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.audience-card { padding: 26px; min-height: 230px; border: 1px solid var(--line); border-radius: 24px; background: #fff; transition: transform .25s ease, box-shadow .25s ease; }
.audience-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.audience-card > span { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; background: var(--cream); color: var(--orange); font-weight: 900; }
.audience-card h3 { color: var(--navy); font-size: 1.4rem; margin-bottom: 6px; }
.audience-card p { color: var(--muted); }

.functions-section { background: #f7f9fc; }
.legend { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 26px; color: var(--muted); font-size: .78rem; font-weight: 800; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.launch, .tag.launch { background: rgba(255,185,0,.18); color: #9b6c00; }
.dot.study, .tag.study { background: rgba(239,95,134,.14); color: #bd4165; }
.feature-catalogue { display: grid; gap: 12px; }
.feature-group { border: 1px solid var(--line); background: #fff; border-radius: 20px; overflow: hidden; }
.feature-group summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 15px; padding: 20px 23px; }
.feature-group summary::-webkit-details-marker { display: none; }
.feature-group summary > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: var(--navy); color: #fff; font-size: .72rem; font-weight: 900; }
.feature-group summary div { display: flex; flex-direction: column; }
.feature-group summary strong { color: var(--navy); }
.feature-group summary small { color: var(--muted); }
.feature-group summary::after { content: "+"; margin-left: auto; color: var(--navy); font-size: 1.4rem; }
.feature-group[open] summary::after { content: "–"; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); }
.feature-list > div { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 13px 20px; border-bottom: 1px solid rgba(7,29,69,.06); color: #42516b; font-size: .84rem; }
.feature-list > div:nth-child(odd) { border-right: 1px solid rgba(7,29,69,.06); }
.tag { flex: 0 0 auto; padding: 4px 7px; border-radius: 999px; font-size: .58rem; text-transform: uppercase; letter-spacing: .05em; }

.roadmap-section { background: var(--navy); color: #fff; }
.roadmap { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.roadmap-step { position: relative; padding: 28px; border: 1px solid rgba(255,255,255,.13); border-radius: 23px; background: rgba(255,255,255,.05); min-height: 310px; }
.roadmap-step.done { background: linear-gradient(145deg,rgba(24,183,184,.17),rgba(255,255,255,.04)); }
.roadmap-step.current { background: linear-gradient(145deg,rgba(255,185,0,.18),rgba(255,255,255,.04)); }
.roadmap-marker { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; color: var(--navy); background: #fff; font-weight: 1000; margin-bottom: 28px; }
.roadmap-step > span { color: var(--yellow); font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 900; }
.roadmap-step h3 { font-size: 1.4rem; margin: 8px 0; }
.roadmap-step p { color: rgba(255,255,255,.65); font-size: .9rem; }

.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 18px; align-items: start; }
.faq-grid details { border: 1px solid var(--line); border-radius: 16px; background: #fff; overflow: hidden; }
.faq-grid summary { cursor: pointer; list-style: none; padding: 18px 20px; color: var(--navy); font-weight: 850; display: flex; gap: 10px; }
.faq-grid summary::-webkit-details-marker { display: none; }
.faq-grid summary::after { content: "+"; margin-left: auto; }
.faq-grid details[open] summary::after { content: "–"; }
.faq-grid p { margin: 0; padding: 0 20px 20px; color: var(--muted); }

.ulule-section { padding: 40px 0 110px; }
.ulule-card { position: relative; overflow: hidden; min-height: 430px; border-radius: 36px; background: linear-gradient(135deg,#071d45,#102f68 56%,#331f65); color: #fff; padding: 55px; display: grid; grid-template-columns: 300px 1fr; gap: 50px; align-items: center; box-shadow: 0 40px 100px rgba(7,29,69,.25); }
.ulule-card > img { width: 280px; filter: brightness(0) invert(1) drop-shadow(0 20px 30px rgba(0,0,0,.2)); opacity: .94; }
.ulule-card h2 { font-size: clamp(2.4rem,5vw,4.7rem); line-height: 1; margin: 10px 0 16px; }
.ulule-card p { color: rgba(255,255,255,.73); }
.ulule-stars { position: absolute; inset: 0; background-image: radial-gradient(circle,#fff 1px,transparent 1.5px),radial-gradient(circle,var(--yellow) 1.4px,transparent 2px); background-size: 43px 43px,72px 72px; opacity: .2; }
.ulule-card > *:not(.ulule-stars) { position: relative; z-index: 1; }
.notify-form { display: flex; max-width: 600px; gap: 10px; margin-top: 24px; }
.notify-form input { flex: 1; min-width: 0; border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.1); color: #fff; padding: 14px 17px; border-radius: 999px; outline: none; }
.notify-form input::placeholder { color: rgba(255,255,255,.55); }
.notify-form input:focus { border-color: var(--teal); }
.notify-form .button { background: linear-gradient(135deg,var(--yellow),var(--orange)); color: var(--navy); box-shadow: none; }
.form-message { min-height: 24px; font-size: .8rem; color: var(--yellow) !important; }

.site-footer { background: #051633; color: #fff; padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3,1fr); gap: 40px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 54px; filter: brightness(0) invert(1); }
.footer-brand div { display: flex; flex-direction: column; }
.footer-brand strong { letter-spacing: .1em; }
.footer-brand span { color: rgba(255,255,255,.54); font-size: .8rem; }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; gap: 8px; }
.footer-grid > div:not(.footer-brand) strong { color: var(--yellow); margin-bottom: 4px; }
.footer-grid a { color: rgba(255,255,255,.62); font-size: .85rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 42px; padding-top: 20px; display: flex; justify-content: space-between; gap: 18px; color: rgba(255,255,255,.45); font-size: .75rem; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in-view { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .12s; }
.reveal-delay-2 { transition-delay: .22s; }

@keyframes float { 0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)} }
@keyframes pulse { 0%,100%{transform:scale(.96);opacity:.75}50%{transform:scale(1.05);opacity:1} }

@media (max-width: 1050px) {
  .nav-links { gap: 16px; }
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 90px; gap: 0; }
  .hero-copy { display: flex; flex-direction: column; align-items: center; }
  .hero-visual { min-height: 570px; }
  .demo-layout, .accessibility-lab, .immersive-grid { grid-template-columns: 1fr; }
  .story-engine { display: grid; grid-template-columns: 1fr 20px 1fr 20px 1fr 20px 1fr; align-items: center; }
  .engine-line { width: 20px; height: 2px; margin: 0; }
  .engine-node { min-height: 120px; }
  .maker-workspace { grid-template-columns: 125px 1fr; }
  .maker-properties { display: none; }
  .roadmap { grid-template-columns: 1fr 1fr; }
  .author-promise { grid-template-columns: 1fr 300px; }
}

@media (max-width: 800px) {
  :root { --shell: min(100% - 28px, 1180px); }
  .section-pad { padding: 78px 0; }
  .nav-toggle { display: block; }
  .nav-links { position: fixed; inset: 76px 14px auto; display: none; flex-direction: column; align-items: stretch; background: #fff; border: 1px solid var(--line); padding: 16px; border-radius: 18px; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 8px 10px; }
  .nav-links .button { text-align: center; }
  .hero { min-height: auto; }
  .hero h1 { font-size: clamp(3rem,15vw,5rem); }
  .hero-visual { min-height: 470px; }
  .hero-logo { width: 440px; }
  .floating-card { display: none; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid article:nth-child(2) { border-right: 0; }
  .trust-grid article:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.14); }
  .demo-layout { gap: 22px; }
  .reader-page { padding: 36px 28px; }
  .story-engine { display: block; }
  .engine-line { width: 2px; height: 22px; margin-left: 36px; }
  .level-showcase { grid-template-columns: 1fr; }
  .level-tabs { grid-template-columns: 1fr 1fr; }
  .level-paper { padding: 38px 28px; }
  .import-grid, .audience-grid { grid-template-columns: 1fr 1fr; }
  .device-stage { transform: scale(.82); margin: -50px 0; }
  .maker-workspace { grid-template-columns: 1fr; min-height: 560px; }
  .maker-sidebar { display: none; }
  .author-promise { grid-template-columns: 1fr; }
  .royalty-card { max-width: 360px; }
  .feature-list { grid-template-columns: 1fr; }
  .feature-list > div:nth-child(odd) { border-right: 0; }
  .faq-grid { grid-template-columns: 1fr; }
  .ulule-card { grid-template-columns: 1fr; padding: 38px 28px; text-align: center; }
  .ulule-card > img { margin: 0 auto; width: 220px; }
  .notify-form { margin-inline: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .hero-actions, .notify-form { flex-direction: column; width: 100%; }
  .hero-actions .button { width: 100%; }
  .hero-visual { min-height: 400px; }
  .trust-grid, .import-grid, .audience-grid, .roadmap, .check-columns { grid-template-columns: 1fr; }
  .trust-grid article { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .toggle-grid, .level-tabs { grid-template-columns: 1fr; }
  .preview-toolbar { align-items: flex-start; flex-direction: column; }
  .sample-text { font-size: 20px; }
  .device-stage { transform: scale(.66); margin: -100px 0; }
  .maker-workspace { min-height: 470px; }
  .map-node { width: 150px; }
  .node-b { left: 170px; }
  .node-d { right: 20px; }
  .author-promise { padding: 28px; }
  .feature-group summary small { display: none; }
  .feature-list > div { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}


/* V2 — univers coloré et priorité à la liseuse couleur Contélia */
body {
  background:
    radial-gradient(circle at 8% 7%, rgba(24,183,184,.22), transparent 24rem),
    radial-gradient(circle at 92% 18%, rgba(239,95,134,.18), transparent 28rem),
    radial-gradient(circle at 72% 58%, rgba(128,86,199,.15), transparent 31rem),
    radial-gradient(circle at 18% 76%, rgba(255,185,0,.17), transparent 27rem),
    linear-gradient(180deg, #eefaff 0%, #fff5e5 28%, #f4efff 58%, #eaf8f7 82%, #fff5e8 100%);
  background-attachment: fixed;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  opacity: .32;
  background-image:
    radial-gradient(circle, rgba(7,29,69,.18) 1.2px, transparent 1.4px),
    radial-gradient(circle, rgba(255,138,0,.2) 1px, transparent 1.3px);
  background-position: 0 0, 37px 31px;
  background-size: 82px 82px, 113px 113px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.7), transparent 92%);
}
.site-header { background: rgba(244,250,255,.82); }
.button-ghost { background: rgba(255,255,255,.72); backdrop-filter: blur(10px); }

.hero {
  min-height: 760px;
  margin-top: 28px;
  margin-bottom: 44px;
  padding: 76px clamp(28px,5vw,72px);
  border-radius: 46px;
  background:
    radial-gradient(circle at 87% 16%, rgba(255,185,0,.22), transparent 26%),
    radial-gradient(circle at 12% 82%, rgba(24,183,184,.18), transparent 32%),
    linear-gradient(135deg, rgba(255,255,255,.72), rgba(242,247,255,.84));
  border: 1px solid rgba(255,255,255,.86);
  box-shadow: 0 32px 100px rgba(7,29,69,.13);
  overflow: hidden;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}
.hero::before { width: 280px; height: 280px; right: -120px; top: -110px; border: 42px solid rgba(128,86,199,.08); }
.hero::after { width: 170px; height: 170px; left: 44%; bottom: -120px; border: 30px solid rgba(239,95,134,.08); }
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.hero h1 { font-size: clamp(3.2rem,5.7vw,5.9rem); }
.hero-lead strong { color: var(--navy); }

.hero-device-wrap { position: relative; z-index: 2; transform: rotate(2deg); }
.hero-reader-device {
  width: min(390px,78vw);
  height: 570px;
  padding: 19px 18px 25px;
  border-radius: 32px;
  background: linear-gradient(145deg,#14223d,#050d1d 72%);
  border: 1px solid rgba(255,255,255,.24);
  box-shadow: 0 42px 90px rgba(7,29,69,.32), inset 0 0 0 2px rgba(255,255,255,.04);
  position: relative;
}
.hero-reader-sensor { width: 50px; height: 5px; border-radius: 99px; background: #35435e; margin: 0 auto 13px; }
.hero-reader-screen {
  height: 492px;
  overflow: hidden;
  border-radius: 15px;
  padding: 18px;
  color: var(--navy);
  background:
    radial-gradient(circle at 84% 5%, rgba(255,185,0,.25), transparent 30%),
    radial-gradient(circle at 10% 72%, rgba(24,183,184,.25), transparent 36%),
    linear-gradient(155deg,#fff8ea,#e9f8ff 48%,#f5ebff);
}
.hero-app-bar { display: flex; align-items: center; gap: 9px; }
.hero-app-bar img { width: 29px; height: 29px; border-radius: 9px; }
.hero-app-bar strong { letter-spacing: .08em; font-size: .78rem; }
.hero-app-bar span { margin-left: auto; letter-spacing: .18em; opacity: .6; }
.hero-library-title { display: flex; flex-direction: column; margin: 28px 0 18px; }
.hero-library-title small { color: var(--teal); font-weight: 900; letter-spacing: .13em; font-size: .61rem; }
.hero-library-title strong { font-family: Georgia,serif; font-size: 1.55rem; line-height: 1.12; margin-top: 5px; }
.hero-book-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.hero-book-cover {
  min-height: 146px;
  padding: 14px;
  border-radius: 15px;
  color: #fff;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 24px rgba(7,29,69,.16);
  overflow: hidden;
  position: relative;
}
.hero-book-cover::after { content:"✦"; position:absolute; right:10px; top:5px; font-size:2rem; opacity:.35; }
.hero-book-cover span { font-size: .52rem; font-weight: 900; letter-spacing: .11em; opacity: .78; }
.hero-book-cover strong { font-family: Georgia,serif; line-height: 1.04; margin-top: 9px; font-size: 1rem; }
.hero-book-cover small { margin-top: auto; font-size: .57rem; opacity: .78; }
.cover-one { grid-row: span 2; min-height: 302px; background: linear-gradient(165deg,#173a71,#0b9a9d 62%,#f2b515); }
.cover-two { background: linear-gradient(145deg,#362570,#b04482); }
.cover-three { background: linear-gradient(145deg,#e77813,#f0b91d); color:#10254d; }
.hero-reader-nav { display: flex; justify-content: space-around; margin-top: 17px; padding-top: 12px; border-top: 1px solid rgba(7,29,69,.12); font-size: .58rem; font-weight: 900; color: #596a85; }
.hero-reader-brand { text-align: center; color: rgba(255,255,255,.65); font-size: .62rem; letter-spacing: .2em; font-weight: 900; margin-top: 7px; }
.device-caption {
  position: absolute;
  left: -54px;
  bottom: 32px;
  padding: 13px 17px;
  border-radius: 17px;
  background: rgba(255,255,255,.88);
  box-shadow: var(--shadow);
  color: var(--muted);
  font-size: .72rem;
  backdrop-filter: blur(12px);
}
.device-caption strong { display:block; color:var(--navy); font-size:.82rem; }
.hero-visual .logo-halo { width: 580px; height: 580px; }
.hero-visual .float-one { top: 55px; right: -25px; }
.hero-visual .float-two { bottom: 70px; left: -30px; }
.hero-visual .float-three { top: 300px; right: -48px; }

#experience,
.imports-section,
.audiences-section,
.faq-section {
  width: min(1240px, calc(100vw - 28px));
  padding-left: clamp(24px,4vw,56px);
  padding-right: clamp(24px,4vw,56px);
  margin-top: 42px;
  margin-bottom: 42px;
  border-radius: 42px;
  background: rgba(255,255,255,.58);
  border: 1px solid rgba(255,255,255,.82);
  box-shadow: 0 24px 75px rgba(7,29,69,.08);
  backdrop-filter: blur(14px);
}

.immersive-section {
  background:
    radial-gradient(circle at 82% 18%, rgba(255,185,0,.22), transparent 30%),
    radial-gradient(circle at 18% 82%, rgba(24,183,184,.18), transparent 32%),
    linear-gradient(135deg,#edf8ff,#fff1df 54%,#f3eaff);
  border-block: 1px solid rgba(255,255,255,.85);
}
.device-note { font-size: .78rem !important; color: #7a6e78 !important; margin-top: 24px; }
.contelia-reader { width: 390px; height: 555px; transform: rotate(-5deg) translateX(-35px); padding-bottom: 34px; }
.contelia-color-screen {
  position: relative;
  color: #fff;
  background:
    linear-gradient(rgba(7,29,69,.1),rgba(7,29,69,.34)),
    radial-gradient(circle at 74% 16%,#ffcf3c 0 7%,transparent 8%),
    radial-gradient(circle at 18% 18%,#61dbd2 0 3%,transparent 4%),
    linear-gradient(160deg,#194b83,#3844a0 45%,#7d2d83 72%,#e47a2f);
}
.contelia-color-screen::before {
  content:"";
  position:absolute;
  inset:0;
  opacity:.38;
  background-image: radial-gradient(circle,#fff 1px,transparent 1.5px), radial-gradient(circle,#ffd11a 1px,transparent 1.5px);
  background-size: 31px 31px,49px 49px;
}
.contelia-color-screen > * { position:relative; z-index:1; }
.contelia-color-screen p { font-family: Georgia,serif; line-height:1.8; color:rgba(255,255,255,.84); }
.contelia-color-screen .screen-choice { border-color:rgba(255,255,255,.65); background:rgba(255,255,255,.1); }
.reader-device-name { position:absolute; bottom:9px; left:0; right:0; text-align:center; color:rgba(255,255,255,.58); letter-spacing:.2em; font-size:.62rem; font-weight:900; }
.companion-phone { width: 205px; height: 390px; transform: rotate(8deg) translate(150px,82px); opacity:.9; }
.companion-phone .color-screen { padding: 67px 20px 24px; }
.companion-phone .color-screen h3 { font-size:1.55rem; }
.reader-priority-badge { position:absolute; left:0; top:36px; padding:14px 18px; border-radius:17px; background:var(--navy); color:rgba(255,255,255,.68); box-shadow:var(--shadow); font-size:.72rem; }
.reader-priority-badge strong { display:block; color:var(--yellow); }

@media (max-width: 980px) {
  .hero { padding: 62px 34px; }
  .hero-device-wrap { transform: none; }
  .hero-visual .float-one { right: 0; }
  .hero-visual .float-three { right: 0; }
}
@media (max-width: 650px) {
  body::before { opacity:.18; }
  .hero { margin-top:14px; border-radius:28px; padding:48px 20px 56px; }
  .hero-reader-device { width:min(340px,88vw); height:515px; }
  .hero-reader-screen { height:441px; padding:14px; }
  .cover-one { min-height:266px; }
  .hero-book-cover { min-height:128px; }
  .device-caption { left:-5px; bottom:12px; }
  .hero-visual .floating-card { display:none; }
  #experience, .imports-section, .audiences-section, .faq-section { width:calc(100vw - 18px); border-radius:28px; padding-left:18px; padding-right:18px; }
  .contelia-reader { width:310px; height:475px; transform:rotate(-3deg) translateX(-20px); }
  .companion-phone { width:155px; height:310px; transform:rotate(7deg) translate(112px,94px); }
  .reader-priority-badge { left:4px; top:6px; }
}

/* V3 — les visuels de la liseuse utilisent exclusivement les photos réelles du prototype. */
.prototype-visual-shell {
  position: relative;
  z-index: 2;
  width: min(470px, 78vw);
}
.prototype-photo-card {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 34px;
  background: rgba(255,255,255,.76);
  border: 1px solid rgba(255,255,255,.94);
  box-shadow: 0 38px 90px rgba(7,29,69,.24), 0 0 0 10px rgba(255,255,255,.28);
}
.prototype-photo-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(7,29,69,.08);
  border-radius: inherit;
}
.prototype-photo-card img {
  width: 100%;
  height: auto;
  display: block;
}
.prototype-photo-label {
  position: absolute;
  z-index: 2;
  left: 18px;
  right: 18px;
  bottom: 18px;
  padding: 13px 16px;
  border-radius: 17px;
  background: rgba(248,252,255,.9);
  border: 1px solid rgba(255,255,255,.9);
  box-shadow: 0 14px 38px rgba(7,29,69,.18);
  backdrop-filter: blur(14px);
}
.prototype-photo-label span,
.prototype-photo-label strong { display: block; }
.prototype-photo-label span {
  color: var(--teal);
  font-size: .62rem;
  font-weight: 950;
  letter-spacing: .12em;
}
.prototype-photo-label strong {
  color: var(--navy);
  font-size: .82rem;
  margin-top: 3px;
}
.hero-visual .logo-halo { width: 620px; height: 620px; }
.hero-visual .float-one { top: 64px; right: -34px; }
.hero-visual .float-two { bottom: 68px; left: -42px; }
.hero-visual .float-three { top: 315px; right: -58px; }

.real-device-gallery {
  min-height: 650px;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(165px, .78fr);
  grid-template-rows: 1fr 1fr;
  gap: 18px;
  align-items: stretch;
  transform: none !important;
  margin: 0 !important;
}
.device-photo {
  margin: 0;
  min-width: 0;
  overflow: hidden;
  border-radius: 25px;
  background: rgba(255,255,255,.84);
  border: 1px solid rgba(255,255,255,.94);
  box-shadow: 0 26px 70px rgba(7,29,69,.16);
  display: flex;
  flex-direction: column;
}
.device-photo-main { grid-row: 1 / span 2; }
.device-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
  background: #f2eee5;
}
.device-photo figcaption {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 13px 15px 15px;
}
.device-photo figcaption strong { color: var(--navy); font-size: .83rem; }
.device-photo figcaption span { color: var(--muted); font-size: .68rem; line-height: 1.45; }
.prototype-proof {
  position: absolute;
  z-index: 3;
  left: 24px;
  bottom: 90px;
  max-width: 225px;
  padding: 14px 17px;
  border-radius: 18px;
  background: rgba(7,29,69,.9);
  color: #fff;
  box-shadow: 0 20px 55px rgba(7,29,69,.25);
  backdrop-filter: blur(12px);
}
.prototype-proof span,
.prototype-proof strong,
.prototype-proof small { display: block; }
.prototype-proof span { color: var(--yellow); font-size: .61rem; font-weight: 950; letter-spacing: .12em; }
.prototype-proof strong { font-size: .84rem; margin-top: 3px; }
.prototype-proof small { color: rgba(255,255,255,.68); margin-top: 2px; line-height: 1.35; }

@media (max-width: 1050px) {
  .prototype-visual-shell { width: min(460px, 76vw); }
  .real-device-gallery { width: min(720px, 100%); margin-inline: auto !important; }
}

@media (max-width: 800px) {
  .prototype-photo-card { border-radius: 28px; }
  .real-device-gallery { min-height: auto; grid-template-columns: 1.18fr .82fr; }
  .prototype-proof { bottom: 82px; left: 16px; }
}

@media (max-width: 650px) {
  .prototype-visual-shell { width: min(400px, 88vw); }
  .prototype-photo-label { left: 12px; right: 12px; bottom: 12px; }
  .real-device-gallery {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 12px;
  }
  .device-photo-main { grid-column: 1 / -1; grid-row: auto; }
  .prototype-proof { position: static; grid-column: 1 / -1; max-width: none; }
}

@media (max-width: 430px) {
  .real-device-gallery { grid-template-columns: 1fr; }
  .device-photo-main, .prototype-proof { grid-column: auto; }
}

/* V3.1 — lancement Ulule, preuve du développement et aperçu Reader fidèle */
.site-header .nav { min-height: 88px; }
.brand img {
  width: 178px;
  height: 70px;
  object-fit: contain;
  object-position: left center;
}

.launch-announcement {
  position: relative;
  z-index: 20;
  color: #fff;
  background:
    radial-gradient(circle at 12% 50%, rgba(255,185,0,.28), transparent 24%),
    radial-gradient(circle at 86% 50%, rgba(24,183,184,.25), transparent 28%),
    linear-gradient(100deg, #071d45, #183e80 56%, #532779);
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.launch-announcement-inner {
  min-height: 94px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  padding-block: 14px;
}
.launch-announcement-date {
  padding-right: 28px;
  border-right: 1px solid rgba(255,255,255,.18);
}
.launch-announcement-date span,
.launch-announcement-date strong,
.launch-announcement-copy strong,
.launch-announcement-copy span { display: block; }
.launch-announcement-date span {
  color: var(--yellow);
  font-size: .68rem;
  font-weight: 950;
  letter-spacing: .14em;
}
.launch-announcement-date strong { font-size: 1.35rem; margin-top: 2px; }
.launch-announcement-copy strong { font-size: .98rem; }
.launch-announcement-copy span { color: rgba(255,255,255,.72); font-size: .82rem; margin-top: 2px; }
.launch-announcement-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 16px;
  border-radius: 999px;
  background: #fff;
  color: var(--navy);
  font-size: .8rem;
  font-weight: 900;
  white-space: nowrap;
}

.hero { min-height: 850px; align-items: center; padding-top: 54px; }
.hero-brand-logo {
  width: min(390px, 86%);
  max-height: 330px;
  object-fit: contain;
  object-position: left center;
  margin: -10px 0 18px;
  filter: drop-shadow(0 20px 28px rgba(7,29,69,.09));
}
.hero h1 {
  font-size: clamp(2.75rem, 4.55vw, 4.85rem);
  line-height: 1.01;
  letter-spacing: -.052em;
  margin: 22px 0 22px;
}
.hero-lead { font-size: 1.05rem; line-height: 1.72; }
.development-proof {
  max-width: 660px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-top: 20px;
  padding: 15px 17px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(24,183,184,.12), rgba(255,255,255,.74));
  border: 1px solid rgba(24,183,184,.24);
}
.development-proof-icon {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--teal);
  color: #032e3a;
  font-weight: 1000;
  box-shadow: 0 0 0 7px rgba(24,183,184,.1);
}
.development-proof div { display: flex; flex-direction: column; }
.development-proof strong { color: var(--navy); }
.development-proof div span { color: var(--muted); font-size: .82rem; margin-top: 2px; }

.built-section { padding: 74px 0 28px; }
.built-panel {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 42px;
  align-items: center;
  padding: clamp(30px, 5vw, 58px);
  border-radius: 34px;
  color: #fff;
  background:
    radial-gradient(circle at 0 0, rgba(24,183,184,.28), transparent 34%),
    radial-gradient(circle at 100% 100%, rgba(128,86,199,.32), transparent 36%),
    linear-gradient(135deg, #071d45, #102e65);
  box-shadow: 0 30px 90px rgba(7,29,69,.2);
  overflow: hidden;
}
.built-copy h2 {
  margin: 11px 0 16px;
  font-size: clamp(2rem, 3.8vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: -.045em;
}
.built-copy h2 span {
  background: linear-gradient(90deg, var(--yellow), #ff8a00, #f39abc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.built-copy p { color: rgba(255,255,255,.7); max-width: 660px; }
.built-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.built-grid article {
  min-height: 145px;
  padding: 20px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,.13);
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(10px);
}
.built-grid article > span {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--teal);
  color: #052a36;
  font-weight: 1000;
  margin-bottom: 12px;
}
.built-grid strong,
.built-grid small { display: block; }
.built-grid strong { font-size: .95rem; }
.built-grid small { color: rgba(255,255,255,.62); line-height: 1.45; margin-top: 4px; }

/* Le laboratoire reproduit désormais la logique visuelle du Reader sur la liseuse. */
.accessibility-lab { grid-template-columns: minmax(300px,.66fr) minmax(430px,1.34fr); align-items: center; }
.reading-controls { align-self: center; }
.reading-preview {
  min-height: 760px;
  padding: 20px 18px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.035);
  border-color: rgba(255,255,255,.12);
}
.preview-reader-device {
  position: relative;
  width: min(535px, 100%);
  aspect-ratio: 3 / 4;
  display: grid;
  grid-template-columns: 1fr 76px;
  gap: 0;
  padding: 28px 22px 26px 25px;
  border-radius: 29px;
  background: linear-gradient(145deg, #fffdfa, #f0eee8 72%, #e8e5dd);
  border: 2px solid #d5efe9;
  box-shadow: 0 34px 70px rgba(0,0,0,.28), inset 0 0 0 1px rgba(7,29,69,.1);
}
.preview-reader-device::before {
  content: "";
  position: absolute;
  inset: -3px;
  z-index: -1;
  border-radius: 31px;
  border: 3px solid rgba(24,183,184,.72);
  opacity: .8;
}
.preview-reader-screen {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(7,29,69,.22);
  border-radius: 5px;
  color: #0a1730;
  background:
    linear-gradient(rgba(224,244,246,.78), rgba(232,245,244,.72)),
    repeating-linear-gradient(0deg, rgba(7,29,69,.018) 0 1px, transparent 1px 3px);
  box-shadow: inset 0 0 24px rgba(7,29,69,.08);
  padding: 0 18px 50px;
}
.preview-reader-side {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 13px;
  margin-left: 12px;
  border-radius: 18px;
  color: #171717;
  background: linear-gradient(145deg,#fbfaf6,#ece8df);
  border: 1px solid rgba(7,29,69,.12);
  box-shadow: inset 0 0 12px rgba(7,29,69,.05);
}
.preview-reader-side span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: Georgia, serif;
  font-size: .86rem;
  font-weight: 900;
  letter-spacing: .02em;
}
.preview-reader-side img { width: 36px; height: 36px; object-fit: contain; }
.device-preview-topbar {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 4px;
  border-bottom: 1px solid rgba(7,29,69,.18);
  color: #1b2a40;
  font-size: .68rem;
}
.device-preview-title,
.device-preview-icons { display: flex; align-items: center; gap: 9px; }
.device-preview-title strong { font-size: .72rem; }
.device-preview-icons { gap: 12px; font-weight: 900; }
.preview-reader-screen .preview-toolbar {
  margin-top: 13px;
  padding: 0 0 10px;
  border-bottom: 0;
  color: #4e5b69;
  font-size: .56rem;
}
.preview-reader-screen .preview-toolbar button {
  padding: 5px 8px;
  border: 1px solid rgba(24,183,184,.26);
  background: rgba(24,183,184,.1);
  color: #116b6c;
  font-size: .55rem;
}
.preview-reader-screen .sample-text {
  margin-top: 19px;
  font-family: "Avenir Next", Avenir, "Trebuchet MS", Arial, sans-serif;
  font-size: 20px;
  line-height: 1.7;
  letter-spacing: 1px;
  font-weight: 520;
  text-align: left;
  color: #111b2c;
}
.preview-reader-screen .guided-group { display: block; margin-bottom: 17px; }
.preview-reader-screen .sample-text.show-tools .tool-word {
  padding: 0 4px 1px;
  border: 1.5px solid #2a8090;
  border-radius: 4px;
  background: rgba(255,255,255,.2);
}
.preview-reader-screen .sample-text.show-graphemes .grapheme {
  padding: 0 4px 1px;
  border-radius: 6px;
  color: #1c2340;
  background: rgba(128,86,199,.38);
  box-shadow: inset 0 -1px 0 rgba(88,44,148,.25);
}
.preview-reader-screen .sample-text.show-syllables .syllable-word > span:nth-child(odd) { color: #158f91; }
.preview-reader-screen .sample-text.show-syllables .syllable-word > span:nth-child(even) { color: #7040a8; }
.preview-reader-screen .sample-text.show-silent .silent-letter {
  color: #8b929d;
  text-decoration: underline solid #8b929d 1px;
  text-underline-offset: 2px;
}
.preview-reader-screen .liaison-mark { color: #7652b6; }
.preview-reader-screen .dictionary-word { border-bottom-color: #158f91; }
.device-preview-footer {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 15px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  color: #314155;
  font-size: .54rem;
}
.device-preview-footer i { height: 6px; border-radius: 99px; background: linear-gradient(90deg,#24465f 68%,rgba(36,70,95,.18) 68%); }
.preview-reader-screen .dictionary-popover { right: 18px; bottom: 64px; max-width: 250px; }
.preview-reader-screen .guided-next { right: 18px; bottom: 44px; font-size: .62rem; padding: 7px 10px; }
.preview-fidelity-note {
  max-width: 520px;
  margin: 13px 0 0;
  color: rgba(255,255,255,.62);
  font-size: .72rem;
  text-align: center;
}

.ulule-section { padding-top: 60px; }
.ulule-card {
  min-height: 610px;
  grid-template-columns: 310px 1fr;
  gap: 54px;
  padding: clamp(38px, 5vw, 68px);
  background:
    radial-gradient(circle at 10% 12%, rgba(255,185,0,.28), transparent 25%),
    radial-gradient(circle at 90% 78%, rgba(24,183,184,.24), transparent 30%),
    linear-gradient(135deg,#071d45,#183d7e 56%,#4f236d);
}
.ulule-date-block {
  min-height: 390px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px;
  border-radius: 28px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  text-align: center;
  backdrop-filter: blur(12px);
}
.ulule-date-block span { color: var(--yellow); font-size: .72rem; font-weight: 950; letter-spacing: .16em; }
.ulule-date-block strong { font-size: 8rem; line-height: .9; margin-top: 22px; color: #fff; letter-spacing: -.08em; }
.ulule-date-block strong sup { font-size: 1.5rem; vertical-align: top; margin-left: 3px; }
.ulule-date-block b { font-size: 1.5rem; color: #fff; }
.ulule-date-block small { margin-top: 12px; color: rgba(255,255,255,.58); }
.ulule-content h2 { font-size: clamp(2.4rem,4.2vw,4.4rem); max-width: 820px; }
.ulule-content > p { max-width: 760px; font-size: 1.02rem; }
.founder-benefits { display: grid; gap: 10px; margin: 26px 0 22px; }
.founder-benefits article {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  border-radius: 17px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.13);
}
.founder-benefits article > span {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: linear-gradient(135deg,var(--yellow),var(--orange));
  color: var(--navy);
  font-size: 1.2rem;
  font-weight: 1000;
}
.founder-benefits strong,
.founder-benefits small { display: block; }
.founder-benefits small { color: rgba(255,255,255,.6); margin-top: 2px; }

@media (max-width: 1050px) {
  .launch-announcement-inner { grid-template-columns: 1fr auto; }
  .launch-announcement-date { grid-row: 1 / span 2; }
  .launch-announcement-copy { align-self: end; }
  .launch-announcement-link { align-self: start; justify-self: start; }
  .built-panel { grid-template-columns: 1fr; }
  .accessibility-lab { grid-template-columns: 1fr; }
  .reading-controls { width: min(620px,100%); margin-inline: auto; }
}

@media (max-width: 800px) {
  .site-header .nav { min-height: 76px; }
  .brand img { width: 142px; height: 58px; }
  .launch-announcement-inner { grid-template-columns: 1fr; gap: 10px; text-align: center; padding-block: 17px; }
  .launch-announcement-date { grid-row: auto; padding: 0 0 10px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .launch-announcement-link { justify-self: center; }
  .hero { padding-top: 42px; }
  .hero-brand-logo { width: min(340px,88%); object-position: center; }
  .development-proof { text-align: left; }
  .built-grid { grid-template-columns: 1fr 1fr; }
  .reading-preview { min-height: 680px; }
  .preview-reader-device { width: min(480px,100%); }
  .ulule-card { grid-template-columns: 1fr; text-align: left; }
  .ulule-date-block { min-height: 290px; }
  .ulule-date-block strong { font-size: 6rem; }
  .notify-form { margin-inline: 0; }
}

@media (max-width: 560px) {
  .hero h1 { font-size: clamp(2.45rem,12vw,3.75rem); }
  .hero-brand-logo { width: min(285px,90%); max-height: 255px; }
  .built-section { padding-top: 52px; }
  .built-panel { padding: 28px 20px; }
  .built-grid { grid-template-columns: 1fr; }
  .reading-preview { min-height: 610px; padding-inline: 6px; }
  .preview-reader-device { width: min(390px,100%); grid-template-columns: 1fr 57px; padding: 20px 13px 18px 16px; }
  .preview-reader-screen { padding-inline: 12px; }
  .preview-reader-side { margin-left: 7px; }
  .preview-reader-side span { font-size: .68rem; }
  .preview-reader-side img { width: 28px; height: 28px; }
  .preview-reader-screen .sample-text { font-size: 17px; line-height: 1.62; letter-spacing: .4px; }
  .preview-reader-screen .guided-group { margin-bottom: 12px; }
  .device-preview-icons { display: none; }
  .preview-reader-screen .preview-toolbar { flex-direction: row; align-items: center; }
  .preview-reader-screen .preview-toolbar button { font-size: .5rem; }
  .ulule-date-block strong { font-size: 5rem; }
  .ulule-content h2 { font-size: 2.35rem; }
}

/* V3.2 — formulaire Ulule relié à Firebase */
.notify-form { display: block; max-width: 720px; }
.notify-form-row { display: flex; gap: 10px; }
.notify-form-row input[type="email"] { flex: 1; min-width: 0; }
.notify-form-row .button { flex: 0 0 auto; min-width: 230px; position: relative; }
.form-honeypot { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip: rect(0 0 0 0) !important; white-space: nowrap !important; }
.consent-line { display: flex; align-items: flex-start; gap: 10px; margin-top: 16px; color: rgba(255,255,255,.88); font-size: .82rem; line-height: 1.45; cursor: pointer; }
.consent-line input { width: 18px; height: 18px; margin: 2px 0 0; flex: 0 0 auto; accent-color: var(--teal); }
.privacy-note { margin: 10px 0 0 !important; color: rgba(255,255,255,.58) !important; font-size: .74rem !important; line-height: 1.45; max-width: 690px !important; }
.button-spinner { display: none; width: 17px; height: 17px; border: 2px solid rgba(7,29,69,.25); border-top-color: var(--navy); border-radius: 50%; animation: waitlist-spin .7s linear infinite; }
.notify-form .button.is-loading .button-label { display: none; }
.notify-form .button.is-loading .button-spinner { display: inline-block; }
.notify-form .button:disabled { cursor: wait; opacity: .82; transform: none; }
.form-message { margin-top: 12px; font-weight: 800; }
.form-message[data-state="success"] { color: #72f3d8 !important; }
.form-message[data-state="error"] { color: #ffb8b8 !important; }
.form-message[data-state="info"] { color: #bfe9ff !important; }
.form-message[data-state="pending"] { color: var(--yellow) !important; }
@keyframes waitlist-spin { to { transform: rotate(360deg); } }
@media (max-width: 700px) {
  .notify-form-row { flex-direction: column; }
  .notify-form-row .button { width: 100%; min-width: 0; }
}