/* Site de vente Rupteur - même langage visuel que l'app : monochrome, noir
   habitacle, hairlines, rouge réservé à la zone rouge. Le site assume le
   thème nuit en permanence : c'est l'ambiance du produit. */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0e0e0e;
  --surface: #1a1a1a;
  --raised: rgba(255, 255, 255, 0.06);
  --raised-2: rgba(255, 255, 255, 0.12);
  --line: rgba(255, 255, 255, 0.09);
  --text: #eaeaea;
  --muted: #9a9a9a;
  --faint: #616161;
  --red: #e82127;
  --ok: #4caf50;
  --r: 8px;
  --r-lg: 14px;
  --font: 'Montserrat', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.contenu { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

/* ---------- Barre ---------- */

.barre {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(14, 14, 14, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.barre .contenu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo {
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 6px;
  text-decoration: none;
}
.barre nav { display: flex; gap: 10px; align-items: center; }
.barre nav a { text-decoration: none; font-size: 14px; color: var(--muted); padding: 8px 10px; }
.barre nav a:hover { color: var(--text); }
.barre nav a.bouton { color: var(--bg); }

/* ---------- Boutons ---------- */

.bouton {
  display: inline-block;
  background: #eaeaea;
  color: #0e0e0e;
  border: 0;
  border-radius: var(--r);
  padding: 13px 26px;
  font: 600 15px var(--font);
  text-decoration: none;
  cursor: pointer;
  transition: filter 0.15s;
}
.bouton:hover { filter: brightness(0.88); }
.bouton.discret {
  background: var(--raised);
  color: var(--text);
  border: 1px solid var(--line);
}
.bouton.discret:hover { background: var(--raised-2); filter: none; }
.bouton.large { padding: 16px 34px; font-size: 17px; }

/* ---------- Hero ---------- */

.hero { padding: 96px 0 72px; text-align: center; }
.hero h1 {
  font-size: clamp(34px, 6vw, 58px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.5px;
  max-width: 17ch;
  margin: 0 auto;
}
.hero .sous {
  max-width: 62ch;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 18px;
}
.hero .actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 34px;
}
.hero .precision { margin-top: 14px; color: var(--faint); font-size: 13px; }

.badge-lancement {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 7px 18px;
  font-size: 14px;
  margin-bottom: 26px;
}
.badge-lancement strong { font-weight: 600; }
.badge-lancement s { color: var(--faint); }

/* Le cadran du hero : un compte-tours au repos, hommage direct à l'app. */
.cadran { margin: 56px auto 0; max-width: 560px; display: block; }

/* ---------- Sections ---------- */

section { padding: 72px 0; border-top: 1px solid var(--line); }
.titre-section {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 600;
  letter-spacing: -0.3px;
  max-width: 24ch;
}
.intro-section { color: var(--muted); max-width: 64ch; margin-top: 14px; }

.grille {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 16px;
  margin-top: 40px;
}
.carte {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
}
.carte h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.carte p { color: var(--muted); font-size: 14.5px; }

/* ---------- Garage ---------- */

.garage {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px;
  margin-top: 36px;
}
.moteur {
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 13px 16px;
}
.moteur strong { display: block; font-size: 14.5px; font-weight: 600; }
.moteur span { font-size: 12.5px; color: var(--muted); }
.moteur.libre { outline: 1px solid var(--raised-2); }
.moteur.libre em { font-style: normal; color: var(--ok); font-size: 11.5px; letter-spacing: 1px; }

/* ---------- Étapes ---------- */

.etapes { counter-reset: etape; display: grid; gap: 0; margin-top: 36px; }
.etape {
  counter-increment: etape;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.etape::before {
  content: counter(etape);
  font-size: 26px;
  font-weight: 600;
  color: var(--faint);
}
.etape h3 { font-size: 16px; font-weight: 600; }
.etape p { color: var(--muted); font-size: 14.5px; margin-top: 4px; }
.etape code {
  font: 500 13.5px ui-monospace, 'SF Mono', Menlo, monospace;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 8px;
}

/* ---------- Prix ---------- */

.offres {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 40px;
  max-width: 760px;
}
.offre {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.offre.mise-en-avant { border-color: rgba(255, 255, 255, 0.28); }
.offre h3 { font-size: 15px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); }
.offre .prix { font-size: 40px; font-weight: 600; margin-top: 10px; }
.offre .prix s { font-size: 20px; color: var(--faint); font-weight: 400; margin-left: 8px; }
.offre .periode { color: var(--faint); font-size: 13px; margin-top: 2px; }
.offre ul { list-style: none; margin: 22px 0 26px; display: grid; gap: 10px; }
.offre li { font-size: 14.5px; padding-left: 26px; position: relative; color: var(--text); }
.offre li.non { color: var(--faint); }
.offre li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
}
.offre li.non::before { border-color: var(--faint); width: 12px; height: 0; transform: none; top: 11px; }
.offre .bouton { margin-top: auto; text-align: center; }

/* ---------- FAQ ---------- */

.faq { max-width: 760px; margin-top: 36px; }
.faq details { border-top: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  padding: 18px 0;
  font-weight: 600;
  font-size: 15.5px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::after { content: '+'; color: var(--faint); font-size: 20px; }
.faq details[open] summary::after { content: '\2212'; }
.faq details p { color: var(--muted); font-size: 14.5px; padding: 0 0 18px; max-width: 68ch; }

/* ---------- Pied ---------- */

footer { border-top: 1px solid var(--line); padding: 40px 0 60px; }
footer .contenu { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: baseline; }
footer p, footer a { color: var(--faint); font-size: 13px; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- Pages achat / merci ---------- */

.page-etroite {
  max-width: 560px;
  margin: 0 auto;
  padding: 80px 24px 120px;
  text-align: center;
}
.page-etroite h1 { font-size: 32px; font-weight: 600; letter-spacing: -0.3px; }
.page-etroite .sous { color: var(--muted); margin-top: 14px; }
.prix-bloc { margin: 34px 0 8px; }
.prix-bloc strong { font-size: 56px; font-weight: 600; }
.prix-bloc s { font-size: 24px; color: var(--faint); margin-left: 12px; }
.prix-bloc .periode { color: var(--muted); font-size: 14px; margin-top: 4px; }
.avantages {
  list-style: none;
  text-align: left;
  margin: 30px auto;
  max-width: 380px;
  display: grid;
  gap: 10px;
  color: var(--muted);
  font-size: 14.5px;
}
.avantages li { padding-left: 24px; position: relative; }
.avantages li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 13px;
  height: 7px;
  border-left: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
}
.appairage-note {
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 12px 16px;
  font-size: 13.5px;
  color: var(--muted);
  margin: 22px 0;
}
.code-licence {
  font: 600 30px ui-monospace, 'SF Mono', Menlo, monospace;
  letter-spacing: 3px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px 18px;
  margin: 30px 0 12px;
  user-select: all;
}
.attente { color: var(--muted); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.45; } }

/* ---------- Pages légales ---------- */

.legal { max-width: 720px; margin: 0 auto; padding: 60px 24px 100px; }
.legal h1 { font-size: 30px; font-weight: 600; margin-bottom: 8px; }
.legal h2 { font-size: 18px; font-weight: 600; margin: 34px 0 10px; }
.legal p, .legal li { color: var(--muted); font-size: 14.5px; }
.legal ul { padding-left: 20px; }
.legal .date { color: var(--faint); font-size: 13px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* Le E du logotype : trois barres, sans fût (voir styles.css de l'app). */
.logo-e { height: 0.66em; width: auto; fill: currentColor; margin-right: 6px; }

/* ---------- Vraies captures de l'app ---------- */

.cadre-app { margin: 0; }
.cadre-app img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--line);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
}
.hero-app { max-width: 720px; margin: 56px auto 0; }
.duo-captures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 44px;
}
.duo-captures figcaption {
  color: var(--faint);
  font-size: 13px;
  margin-top: 12px;
  max-width: 46ch;
}
.duo-achat {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 820px) { .duo-achat { grid-template-columns: 1fr; } }

/* ---------- Rupteur Sound Technology ---------- */

.rst-marque {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 14px;
}
.rst-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.rst-stats strong { font-size: 26px; font-weight: 600; color: var(--text); margin-right: 8px; }

/* ---------- Vidéo de démonstration ---------- */

.video-demo { max-width: 720px; }
.video-demo video {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #000;
}

/* Les quatre cartes RST en deux par deux : pas d'orpheline. */
.grille.rst { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }