/* Page de téléchargement de Flaw : mêmes tons que l'application (papier, encre, bleu). */
:root {
  --papier: #fbf8f1;
  --fond: #ece7df;
  --encre: #26231f;
  --encre-2: #5c564d;
  --encre-3: #8a8378;
  --accent: #2f5873;
  --trait: #ddd5c8;
  --ombre: 0 1px 2px rgba(38, 35, 31, 0.06), 0 12px 40px rgba(38, 35, 31, 0.12);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --papier: #23211e;
    --fond: #181715;
    --encre: #ece6dc;
    --encre-2: #bdb5a8;
    --encre-3: #8f887d;
    --accent: #8db5d1;
    --trait: #36332e;
    --ombre: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 40px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--fond);
  color: var(--encre);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--encre);
  font: italic 600 22px var(--serif);
  text-decoration: none;
}

.brand img { border-radius: 9px; }

nav { display: flex; align-items: center; gap: 20px; }

nav a { color: var(--encre-2); text-decoration: none; font-size: 15px; }

nav a:hover { color: var(--encre); }

.lang {
  border: 1px solid var(--trait);
  border-radius: 6px;
  background: transparent;
  color: var(--encre-2);
  font: 600 12px var(--sans);
  padding: 4px 8px;
  cursor: pointer;
}

main { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  padding: 48px 0 72px;
}

h1 {
  margin: 0 0 20px;
  font: 500 clamp(34px, 5vw, 54px)/1.1 var(--serif);
  letter-spacing: -0.01em;
}

.lead { margin: 0 0 32px; color: var(--encre-2); font-size: 18px; max-width: 34em; }

.downloads { display: flex; flex-wrap: wrap; gap: 12px; }

.download {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
  padding: 14px 18px;
  border: 1px solid var(--trait);
  border-radius: 12px;
  background: var(--papier);
  color: var(--encre);
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.download:hover { transform: translateY(-2px); box-shadow: var(--ombre); }

.download.preferred { order: -1; background: var(--encre); color: var(--papier); border-color: var(--encre); }

.download svg { width: 26px; height: 26px; fill: currentColor; flex: none; }

.download span { display: flex; flex-direction: column; line-height: 1.3; }

.download strong { font-size: 16px; }

.download small { opacity: 0.7; font-size: 13px; }

.note { margin: 16px 0 0; font-size: 14px; }

.book { display: flex; justify-content: center; perspective: 1400px; }

.page {
  position: relative;
  width: min(100%, 380px);
  aspect-ratio: 13 / 20;
  padding: 13% 12% 16%;
  background: var(--papier);
  border-radius: 3px;
  box-shadow: var(--ombre);
  font: 14px/1.55 var(--serif);
  text-align: justify;
  hyphens: auto;
  transform: rotateY(-6deg) rotateX(2deg);
  animation: rise 700ms cubic-bezier(0.2, 0.7, 0.2, 1) backwards;
}

.page p { margin: 0; text-indent: 1.4em; }

.page .chapter { margin: 18% 0 10%; text-align: center; text-indent: 0; font-size: 21px; }

.page .first { text-indent: 0; }

.folio { position: absolute; bottom: 7%; left: 0; right: 0; text-align: center; color: var(--encre-3); font-size: 12px; }

.demo { padding: 0 0 72px; text-align: center; }

.demo h2 { margin: 0 0 20px; font: 500 30px var(--serif); }

.demo-video {
  display: block;
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  border-radius: 14px;
  border: 1px solid var(--trait);
  box-shadow: var(--ombre);
  background: var(--papier);
}

.shots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.shots figure { margin: 0; }

.shots img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--trait);
}

.shots figcaption { margin-top: 10px; color: var(--encre-2); font-size: 14px; }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 24px 0 72px;
}

.features article {
  padding: 24px;
  background: var(--papier);
  border: 1px solid var(--trait);
  border-radius: 14px;
}

.features h2 { margin: 0 0 8px; font: 500 21px var(--serif); }

.features p { margin: 0; color: var(--encre-2); font-size: 15px; }

.install { padding: 0 0 72px; }

.install > h2 { margin: 0 0 8px; font: 500 30px var(--serif); }

.install > p { margin: 0 0 24px; color: var(--encre-2); }

.steps { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.steps > div { padding: 24px; border: 1px solid var(--trait); border-radius: 14px; }

.steps h3 { margin: 0 0 8px; font-size: 16px; }

.steps ol { margin: 0; padding-left: 20px; color: var(--encre-2); font-size: 15px; }

.steps li + li { margin-top: 6px; }

.foot {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  border-top: 1px solid var(--trait);
  color: var(--encre-3);
  font-size: 14px;
}

.foot p { margin: 4px 0; }

@keyframes rise {
  from { opacity: 0; transform: translateY(24px) rotateY(-6deg) rotateX(2deg); }
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 24px; }
  .features { grid-template-columns: 1fr 1fr; }
  .shots { grid-template-columns: 1fr; }
  .page { transform: none; }
}

@media (max-width: 560px) {
  nav a:first-child { display: none; }
  .features, .steps { grid-template-columns: 1fr; }
  .download { min-width: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .page { animation: none; }
  .download { transition: none; }
}