/* Knowa — appknowa.com. Tokens repris de la maquette « Knowa Landing »
   (claude.ai/design) ; polices auto-hébergées (aucune requête externe). */

@font-face {
  font-family: 'Newsreader';
  src: url('fonts/Newsreader-300.ttf') format('truetype');
  font-weight: 300; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Newsreader';
  src: url('fonts/Newsreader-400.ttf') format('truetype');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('fonts/Manrope-400.ttf') format('truetype');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('fonts/Manrope-500.ttf') format('truetype');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('fonts/Manrope-600.ttf') format('truetype');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('fonts/Manrope-700.ttf') format('truetype');
  font-weight: 700; font-style: normal; font-display: swap;
}

:root {
  --bg: #EDE7DD; --surface: #FDFBF6; --surface-2: #F5F1E7; --rule: #E2DACD;
  --ink: #1B1815; --ink-2: #4A443E; --meta: #5F564C; --deco: #9C9285;
  --dark: #161310; --dark-2: #211C17; --on-dark: #F6F1E7; --on-dark-2: rgba(246, 241, 231, .66);
  --acc: #2F6B57; --acc-deep: #1D4A3B;
  --ok-bg: #E9F2ED; --miss: #8A6A2B; --miss-bg: #FAF3E2;
  --gold: #8A6B22; --gold-soft: #C4A456;
  --t-phys: #3A5C8C; --t-math: #4E4A8F; --t-info: #1F5F72; --t-corps: #A03A5C;
  --t-nat: #4A6B1F; --t-hist: #8A4527; --t-geo: #2F6B57; --t-eco: #7C5B2A;
  --t-arts: #7A3A6E; --t-espace: #2C3E63; --t-philo: #55606B;
  --shadow: 70, 52, 36;
  --pad: clamp(20px, 5.2vw, 88px); --sec: clamp(64px, 9vw, 140px);
  --h1: clamp(36px, 5.6vw, 68px); --h2: clamp(28px, 3.6vw, 46px);
  --body: clamp(16px, 1.15vw, 19px);
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: Manrope, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
p { margin: 0; }
img { display: block; max-width: 100%; }
a { color: var(--acc); }
a:hover { color: var(--acc-deep); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }

@keyframes knowa-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

.wrap { max-width: 1480px; margin: 0 auto; }

/* ————— En-tête ————— */
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(14px); background: rgba(237, 231, 221, .86);
  border-bottom: 1px solid var(--rule);
}
.site-header .bar { display: flex; align-items: center; gap: 18px; padding: 13px var(--pad); }
.wordmark { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); }
.wordmark .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold-soft); }
.wordmark .mark { height: 22px; width: auto; }
.wordmark .name { font: 600 15px/1 Manrope; letter-spacing: .26em; text-transform: uppercase; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: clamp(12px, 1.7vw, 26px); margin-left: auto; }
.site-nav a { font: 500 14px/1 Manrope; color: var(--meta); text-decoration: none; }
.site-nav a:hover { color: var(--ink); }
.site-nav a.cta {
  display: flex; align-items: center; height: 38px; padding: 0 18px;
  border-radius: 19px; background: var(--ink); color: var(--surface); font-weight: 600; font-size: 13.5px;
}
.site-nav a.cta:hover { color: var(--surface); }

/* ————— Sections de la landing ————— */
.hero { padding: clamp(48px, 7vw, 104px) var(--pad) clamp(52px, 6.5vw, 104px); }
.hero .center {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  animation: knowa-rise .6s ease both;
}
.hero-logo { height: clamp(56px, 7vw, 78px); width: auto; margin-bottom: 24px; }
.hero .center h1 { max-width: 22ch; margin-left: auto; margin-right: auto; }
.hero .center .sub { max-width: 44ch; margin-left: auto; margin-right: auto; }
.hero .center .store-row { justify-content: center; }
.kicker {
  display: inline-flex; align-items: center; gap: 9px; height: 30px; padding: 0 14px;
  border-radius: 15px; background: var(--surface); border: 1px solid var(--rule);
  font: 600 11px/1 Manrope; letter-spacing: .14em; text-transform: uppercase; color: var(--gold);
}
.kicker .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-soft); }
.hero h1 {
  font: 300 var(--h1)/1.06 Newsreader; letter-spacing: -.025em;
  margin: 20px 0 0; max-width: 20ch; text-wrap: balance;
}
.hero .sub {
  font-family: Newsreader; font-weight: 400; font-size: clamp(17px, 1.5vw, 22px);
  line-height: 1.55; color: var(--meta); margin-top: 20px; max-width: 38ch; text-wrap: pretty;
}
.store-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; scroll-margin-top: 96px; }
.store-btn {
  display: flex; align-items: center; gap: 11px; height: 58px; padding: 0 24px 0 20px;
  border-radius: 17px; background: var(--ink); color: var(--on-dark); text-decoration: none;
  box-shadow: 0 20px 38px -22px rgba(var(--shadow), .65);
  transition: transform .15s ease;
}
.store-btn:hover { transform: translateY(-1px); color: var(--on-dark); }
.store-btn .lines { display: flex; flex-direction: column; gap: 2px; text-align: left; }
.store-btn .over { font: 500 10px/1 Manrope; letter-spacing: .1em; text-transform: uppercase; opacity: .72; }
.store-btn .store { font: 600 17px/1 Manrope; letter-spacing: -.01em; }
.store-note { font: 500 13.5px/1.5 Manrope; color: var(--deco); margin-top: 16px; }
.hero .shot { flex: 1 1 380px; min-width: min(100%, 300px); display: flex; justify-content: center; }
.phone {
  width: 100%; max-width: 440px; border-radius: 30px; overflow: hidden;
  background: var(--dark); box-shadow: 0 46px 84px -46px rgba(var(--shadow), .7);
}

.section { padding: 0 var(--pad) var(--sec); }
.section-head { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 24px; }
h2.display {
  font: 300 var(--h2)/1.1 Newsreader; letter-spacing: -.022em; margin: 0;
  max-width: 24ch; text-wrap: balance;
}
.section-lede {
  font-family: Newsreader; font-weight: 400; font-size: var(--body); line-height: 1.6;
  color: var(--meta); text-wrap: pretty;
}
.step-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: clamp(14px, 1.8vw, 24px); margin-top: clamp(28px, 3.5vw, 48px);
}
.step-card {
  border-radius: 24px; background: var(--surface); border: 1px solid var(--rule);
  padding: clamp(22px, 2.2vw, 32px);
}
.step-card .num { font: 700 10px/1 Manrope; letter-spacing: .18em; color: var(--deco); }
.step-card h3 { font: 300 clamp(21px, 1.7vw, 27px)/1.2 Newsreader; margin: 14px 0 0; letter-spacing: -.012em; }
.step-card p {
  font-family: Newsreader; font-weight: 400; font-size: var(--body); line-height: 1.55;
  color: var(--meta); margin-top: 10px; text-wrap: pretty;
}

/* ————— Démo jouable ————— */
.demo-duo {
  display: flex; flex-wrap: wrap; align-items: flex-start;
  gap: clamp(14px, 1.8vw, 24px); margin-top: clamp(26px, 3.4vw, 44px);
}
.demo-card {
  flex: 1 1 460px; min-width: min(100%, 320px);
  border-radius: 30px; background: var(--surface); border: 1px solid var(--rule);
  padding: clamp(24px, 3vw, 42px); box-shadow: 0 30px 60px -40px rgba(var(--shadow), .5);
}
.demo-topic { display: flex; align-items: center; gap: 9px; font: 700 11px/1 Manrope; letter-spacing: .16em; text-transform: uppercase; color: var(--meta); }
.demo-topic .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.demo-q {
  font: 300 clamp(21px, 2vw, 29px)/1.3 Newsreader; letter-spacing: -.012em;
  margin: 16px 0 20px; text-wrap: pretty;
}
.demo-choice {
  display: flex; align-items: flex-start; gap: 13px; width: 100%; text-align: left;
  border: 1px solid var(--rule); border-radius: 16px; background: var(--surface-2);
  padding: 14px 16px; margin-top: 10px; cursor: pointer;
  font: 500 15.5px/1.45 Manrope; color: var(--ink-2);
  transition: border-color .15s ease, background .15s ease;
}
.demo-choice:hover { border-color: var(--deco); }
.demo-choice .letter {
  flex: none; width: 26px; height: 26px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; border: 1px solid var(--deco);
  font: 700 12px/1 Manrope; color: var(--meta); margin-top: 1px;
}
.demo-card.answered .demo-choice { cursor: default; opacity: .55; }
.demo-card.answered .demo-choice:hover { border-color: var(--rule); }
.demo-card.answered .demo-choice.is-correct {
  opacity: 1; border-color: var(--acc); background: var(--ok-bg); color: var(--ink);
}
.demo-card.answered .demo-choice.is-correct .letter { border-color: var(--acc); color: var(--acc-deep); }
.demo-card.answered .demo-choice.is-picked:not(.is-correct) {
  opacity: 1; border-color: var(--miss); background: var(--miss-bg);
}
.demo-card.answered .demo-choice.is-picked:not(.is-correct) .letter { border-color: var(--miss); color: var(--miss); }
.demo-verdict { font: 700 12px/1 Manrope; letter-spacing: .14em; text-transform: uppercase; margin-top: 18px; }
.demo-verdict.good { color: var(--acc-deep); }
.demo-verdict.miss { color: var(--miss); }
.demo-reveal { display: none; }
.demo-card.answered .demo-reveal { display: block; animation: knowa-rise .45s ease both; }
.demo-expl {
  border-left: 3px solid var(--gold-soft); background: var(--surface-2);
  border-radius: 0 16px 16px 0; padding: 16px 18px; margin-top: 14px;
}
.demo-expl .cap { font: 700 10px/1 Manrope; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); margin-bottom: 8px; }
.demo-expl p { font-family: Newsreader; font-weight: 400; font-size: var(--body); line-height: 1.6; color: var(--ink); }
.demo-takeaway { font: 600 14px/1.5 Manrope; color: var(--acc-deep); margin-top: 14px; }
.demo-footnote { font: 500 13.5px/1.6 Manrope; color: var(--deco); margin-top: 18px; }

/* ————— Captures ————— */
.shots-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: clamp(14px, 1.8vw, 24px); margin-top: clamp(26px, 3.4vw, 44px);
}
.shots-grid figure { margin: 0; display: flex; flex-direction: column; gap: 14px; }
.shots-grid .frame { border-radius: 24px; overflow: hidden; background: var(--surface-2); border: 1px solid var(--rule); }
.shots-grid .frame.dark { background: var(--dark); border-color: var(--dark-2); }
.shots-grid figcaption { font: 500 14px/1.5 Manrope; color: var(--meta); }

/* ————— Thèmes ————— */
.panel {
  border-radius: 30px; background: var(--surface-2); border: 1px solid var(--rule);
  padding: clamp(26px, 3.4vw, 58px);
}
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: clamp(24px, 3vw, 38px); }
.theme-chip {
  display: flex; align-items: center; gap: 9px; height: 44px; padding: 0 18px;
  border-radius: 22px; background: var(--surface); border: 1px solid var(--rule);
  font: 600 14px/1 Manrope;
}
.theme-chip .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }

/* ————— Catalogue ————— */
.catalog-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: clamp(24px, 3vw, 38px); padding: 0; list-style: none; }
.catalog-list li {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--rule); background: var(--surface); border-radius: 999px;
  padding: 9px 17px; font: 500 14px/1.4 Manrope; color: var(--ink-2);
}
.catalog-list .dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.catalog-more { font: 600 14px/1 Manrope; color: var(--gold); }

/* ————— Méthode (section sombre) ————— */
.method { background: var(--dark); color: var(--on-dark); padding: var(--sec) var(--pad); }
.method .cols { display: flex; flex-wrap: wrap; gap: clamp(28px, 4vw, 64px); }
.method .col { flex: 1 1 380px; min-width: min(100%, 300px); }
.overline { font: 700 10px/1 Manrope; letter-spacing: .2em; text-transform: uppercase; color: var(--gold-soft); }
.method h2 { font: 300 var(--h2)/1.1 Newsreader; letter-spacing: -.022em; margin: 18px 0 0; max-width: 22ch; text-wrap: balance; }
.method .lede {
  font-family: Newsreader; font-weight: 400; font-size: var(--body); line-height: 1.65;
  color: var(--on-dark-2); margin-top: 18px; max-width: 46ch; text-wrap: pretty;
}
.method .tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.method .tag {
  display: flex; align-items: center; height: 36px; padding: 0 15px; border-radius: 18px;
  background: rgba(246, 241, 231, .1); font: 600 12.5px/1 Manrope;
}
.method .feature {
  border-radius: 24px; background: var(--dark-2); border: 1px solid rgba(196, 164, 86, .28);
  padding: clamp(22px, 2.4vw, 34px);
}
.method .feature h3 { font: 300 clamp(21px, 1.8vw, 28px)/1.22 Newsreader; margin: 14px 0 0; letter-spacing: -.012em; }
.method .feature p {
  font-family: Newsreader; font-weight: 400; font-size: var(--body); line-height: 1.6;
  color: var(--on-dark-2); margin-top: 12px; text-wrap: pretty;
}
.fact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr)); gap: 14px; margin-top: 14px; }
.fact-tile { border-radius: 20px; background: rgba(246, 241, 231, .06); padding: 20px; }
.fact-tile .fact { font-family: Newsreader; font-weight: 400; font-size: clamp(18px, 1.5vw, 22px); line-height: 1.3; }
.fact-tile .tail { font: 600 12px/1 Manrope; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-soft); margin-top: 12px; }

/* ————— CTA final + pied ————— */
.cta-final { padding: var(--sec) var(--pad) clamp(52px, 6vw, 88px); }
.cta-final .inner { display: flex; flex-direction: column; align-items: center; gap: 22px; text-align: center; }
.cta-final h2 { font: 300 var(--h2)/1.08 Newsreader; letter-spacing: -.022em; margin: 0; max-width: 22ch; text-wrap: balance; }
.cta-final .lede { font-family: Newsreader; font-weight: 400; font-size: var(--body); line-height: 1.6; color: var(--meta); max-width: 46ch; text-wrap: pretty; }

.site-footer { border-top: 1px solid var(--rule); padding: 26px var(--pad) 42px; }
.site-footer .row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.site-footer .brand { display: flex; align-items: center; gap: 9px; }
.site-footer .brand .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-soft); }
.site-footer .brand .name { font: 600 13px/1 Manrope; letter-spacing: .22em; text-transform: uppercase; color: var(--meta); }
.site-footer .brand .tag { font: 500 13px/1 Manrope; color: var(--deco); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; margin-left: auto; }
.site-footer nav a { font: 500 13px/1 Manrope; color: var(--meta); text-decoration: none; }
.site-footer nav a:hover { color: var(--ink); }

/* ————— Pages documentaires (confidentialité, suppression, mentions) ————— */
.doc { padding: clamp(40px, 6vw, 72px) var(--pad) clamp(64px, 8vw, 110px); }
.doc-inner { max-width: 720px; margin: 0 auto; }
.doc .lang-switch { font: 600 13px/1 Manrope; }
.doc h1 { font: 300 clamp(30px, 4.2vw, 46px)/1.12 Newsreader; letter-spacing: -.02em; margin: 14px 0 0; text-wrap: balance; }
.doc .updated { font: 500 13.5px/1.6 Manrope; color: var(--deco); margin-top: 12px; }
.doc .intro { font-family: Newsreader; font-weight: 400; font-size: clamp(17px, 1.3vw, 20px); line-height: 1.6; color: var(--meta); margin-top: 20px; text-wrap: pretty; }
.doc h2 { font: 300 clamp(22px, 2.2vw, 29px)/1.2 Newsreader; letter-spacing: -.014em; margin: clamp(34px, 4vw, 48px) 0 0; }
.doc p, .doc li { font-family: Newsreader; font-weight: 400; font-size: 17.5px; line-height: 1.65; color: var(--ink-2); margin-top: 12px; text-wrap: pretty; }
.doc ul, .doc ol { margin: 12px 0 0; padding-left: 22px; }
.doc li { margin-top: 8px; }
.doc .callout {
  border-radius: 20px; background: var(--surface); border: 1px solid var(--rule);
  padding: 22px 24px; margin-top: 22px;
}
.doc .callout .cap { font: 700 11px/1 Manrope; letter-spacing: .15em; text-transform: uppercase; color: var(--gold); margin-bottom: 4px; }
.doc .steps { counter-reset: step; list-style: none; padding: 0; }
.doc .steps li {
  position: relative; padding-left: 44px; margin-top: 14px;
}
.doc .steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 2px; width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface); border: 1px solid var(--gold-soft);
  font: 600 14px/1 Newsreader; color: var(--gold);
}