/* Syntheo · 緑茶 Thé vert — jetons repris de packages/design-system (dépôt Syntheo). */
:root {
  --background: #fbfaf5;
  --foreground: #262a24;
  --card: #fffefa;
  --muted: #efeee6;
  --muted-foreground: #5c6357;
  --faint: #8f968a;
  --border: #e4e3d8;
  --primary: #316745;
  --primary-hover: #25553a;
  --primary-foreground: #fbfaf5;
  --recording: #c53d43;
  --watermark: rgba(49, 103, 69, 0.06);
  --shadow-capsule: 0 8px 28px rgba(38, 42, 36, 0.18);
  --serif: "Newsreader Variable", Georgia, "Times New Roman", serif;
  --sans: "Geist Variable", system-ui, -apple-system, "Segoe UI", sans-serif;
  --kanji: "Syntheo Kanji", "Hiragino Mincho ProN", "Yu Mincho", serif;
  color-scheme: light dark;
}

:root[data-theme="dark"] {
  --background: #1b1e1a;
  --foreground: #ece9df;
  --card: #232821;
  --muted: #2c322a;
  --muted-foreground: #a7ad9f;
  --faint: #7b8274;
  --border: #343a32;
  --primary: #7dbf95;
  --primary-hover: #97ceaa;
  --primary-foreground: #13251a;
  --recording: #e5675f;
  --watermark: rgba(125, 191, 149, 0.07);
  --shadow-capsule: 0 8px 28px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --background: #1b1e1a;
    --foreground: #ece9df;
    --card: #232821;
    --muted: #2c322a;
    --muted-foreground: #a7ad9f;
    --faint: #7b8274;
    --border: #343a32;
    --primary: #7dbf95;
    --primary-hover: #97ceaa;
    --primary-foreground: #13251a;
    --recording: #e5675f;
    --watermark: rgba(125, 191, 149, 0.07);
    --shadow-capsule: 0 8px 28px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}

:root[data-theme="light"] { color-scheme: light; }

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); }
a:hover { color: var(--primary-hover); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 6px; }

img { max-width: 100%; height: auto; }

.skip { position: absolute; left: -9999px; top: 8px; }
.skip:focus { left: 16px; z-index: 10; background: var(--card); padding: 8px 12px; }

.wrap { max-width: 1180px; margin: 0 auto; padding-inline: 32px; }
.narrow { max-width: 880px; margin: 0 auto; padding-inline: 32px; }
@media (max-width: 640px) { .wrap, .narrow { padding-inline: 16px; } }

.serif { font-family: var(--serif); font-weight: 500; }
.kanji { font-family: var(--kanji); font-weight: 700; }
.muted { color: var(--muted-foreground); }
.label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-foreground); }
.green { color: var(--primary); }

/* Logo clair / sombre */
img.logo-dark, img.when-dark { display: none; }
:root[data-theme="dark"] img.logo-light, :root[data-theme="dark"] img.when-light { display: none; }
:root[data-theme="dark"] img.logo-dark, :root[data-theme="dark"] img.when-dark { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) img.logo-light, :root:not([data-theme="light"]) img.when-light { display: none; }
  :root:not([data-theme="light"]) img.logo-dark, :root:not([data-theme="light"]) img.when-dark { display: block; }
}

/* Sélecteur de thème : automatique, clair, sombre */
.theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 10px; background: transparent; color: var(--muted-foreground); cursor: pointer; }
.theme-toggle:hover { color: var(--foreground); background: var(--muted); }
.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .i-sun, .theme-toggle .i-moon { display: none; }
:root[data-theme="light"] .theme-toggle .i-auto, :root[data-theme="dark"] .theme-toggle .i-auto { display: none; }
:root[data-theme="light"] .theme-toggle .i-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: block; }

/* En-tête */
.site-header { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; padding-block: 20px; }
.site-header .brand img { height: 30px; width: auto; }
.site-nav { display: flex; flex-wrap: wrap; gap: 8px 24px; flex-grow: 1; font-size: 15px; }
.site-nav a { color: var(--muted-foreground); text-decoration: none; }
.site-nav a:hover { color: var(--foreground); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.lang { font-size: 13px; color: var(--muted-foreground); }
.lang a { color: var(--muted-foreground); }
.lang strong { color: var(--foreground); }

/* Boutons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 24px; border-radius: 16px; font-weight: 600; font-size: 15px; text-decoration: none; }
.btn-sm { min-height: 44px; padding: 10px 18px; border-radius: 10px; font-size: 14px; }
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { background: var(--primary-hover); color: var(--primary-foreground); }
.btn-secondary { background: var(--muted); color: var(--foreground); }
.btn-secondary:hover { color: var(--foreground); filter: brightness(0.97); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* Haut de page */
.hero { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 22px; padding-block: 72px 40px; }
.pill { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-foreground); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; }
.hero h1 { margin: 0; font-family: var(--serif); font-weight: 500; font-size: clamp(40px, 6vw, 68px); line-height: 1.04; letter-spacing: -0.015em; text-wrap: balance; }
.hero .kicker { margin: 0; font-family: var(--serif); font-style: italic; font-size: clamp(22px, 2.6vw, 28px); color: var(--primary); }
.hero .lead { margin: 0; max-width: 640px; font-size: 19px; color: var(--muted-foreground); }
.hero .prereq { margin: 0; font-size: 13px; color: var(--muted-foreground); }

/* Aperçu du produit */
.preview { padding-block: 16px 80px; }
.window { background: var(--card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; position: relative; }
.window-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--muted-foreground); }
.window-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.window-bar .title { margin-left: 12px; }
.window-body { display: flex; flex-wrap: wrap; gap: 40px; padding: 40px 48px 120px; }
@media (max-width: 640px) { .window-body { padding: 24px 20px 120px; } }
.note { flex: 999 1 520px; min-width: 0; }
.note .meta { font-size: 13px; color: var(--muted-foreground); }
.note h2 { margin: 8px 0 20px; font-family: var(--serif); font-weight: 500; font-size: clamp(26px, 3vw, 36px); line-height: 1.1; }
.note h3 { margin: 0 0 8px; font-family: var(--serif); font-weight: 500; font-size: 22px; }
.note ul { margin: 0 0 20px; padding-left: 20px; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 13px; color: var(--muted-foreground); margin-bottom: 18px; }
.legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.sw-notes { background: var(--primary); }
.sw-ai { background: var(--foreground); }
.margin-transcript { flex: 1 1 260px; min-width: 0; border-left: 1px solid var(--border); padding-left: 24px; font-size: 14px; color: var(--muted-foreground); display: flex; flex-direction: column; gap: 14px; }
.margin-transcript p { margin: 0; }
.margin-transcript strong { display: block; color: var(--foreground); }
.capsule { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); display: flex; align-items: center; gap: 6px; background: var(--primary); color: var(--primary-foreground); border-radius: 999px; padding: 8px 10px; box-shadow: var(--shadow-capsule); font-size: 14px; font-weight: 600; white-space: nowrap; }
.capsule span { padding: 6px 12px; opacity: 0.75; }
.capsule .on { background: var(--primary-foreground); color: var(--primary); border-radius: 999px; opacity: 1; }
.capsule .kanji { font-size: 11px; margin-right: 6px; }
.caption { margin: 10px 0 0; text-align: center; font-size: 12px; color: var(--faint); }

/* Sections */
.section { padding-block: 80px; }
.section-title { margin: 0 0 16px; font-family: var(--serif); font-weight: 500; font-size: clamp(30px, 3.6vw, 44px); line-height: 1.1; text-wrap: balance; }
.center { text-align: center; }
.intro { margin: 0 auto 40px; max-width: 660px; color: var(--muted-foreground); font-size: 17px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); } }
.item { border-top: 1px solid var(--border); padding-top: 20px; }
.item h3 { margin: 8px 0 6px; font-size: 18px; font-weight: 600; }
.item p { margin: 0; color: var(--muted-foreground); }
.item .kanji { font-size: 30px; color: var(--primary); line-height: 1.2; }

/* Histoire du thé */
.tea { position: relative; overflow: hidden; border-block: 1px solid var(--border); }
.tea .watermark { position: absolute; right: -40px; top: -60px; font-size: 380px; line-height: 1; color: var(--watermark); pointer-events: none; }
.tea .wrap { position: relative; }
.tea .section-title { max-width: 780px; margin-top: 10px; }
.tea .intro { margin-left: 0; }
.seal { font-family: var(--kanji); font-weight: 700; color: var(--recording); }

/* Modèles */
.models { background: var(--muted); }
.models .wrap { display: flex; flex-wrap: wrap; gap: 48px; align-items: center; }
.models .text { flex: 1 1 420px; min-width: 0; }
.models .text p { color: var(--muted-foreground); font-size: 17px; }
.chips { flex: 1 1 420px; min-width: 0; display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.chips li { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 10px 16px; font-weight: 500; }

/* Téléchargement */
.download { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 18px; padding-block: 48px 96px; }

/* Pied de page */
.site-footer { border-top: 1px solid var(--border); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: center; padding-block: 28px; font-size: 14px; color: var(--muted-foreground); }
.site-footer img { height: 22px; width: auto; }
.site-footer .grow { flex-grow: 1; }
.site-footer a { color: var(--muted-foreground); }

/* Captures de l'application */
.shot { margin: 0; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: var(--card); box-shadow: 0 24px 60px rgba(38, 42, 36, 0.10); }
.shot img { display: block; width: 100%; height: auto; }
.shot img.when-dark { display: none; }
.shots-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; align-items: start; }
.shots-2 figure { margin: 0; }
@media (max-width: 800px) { .shots-2 { grid-template-columns: minmax(0, 1fr); } }