/* ==========================================================================
   biensur — landing page
   Feuille de styles unique. Aucune dépendance externe.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Variables
   -------------------------------------------------------------------------- */
:root {
  /* Fonds */
  --bg: #fdfaf4;
  --surface: oklch(0.995 0.004 85);
  --border: oklch(0.9 0.015 85);

  /* Textes */
  --ink: oklch(0.26 0.02 230);
  --ink-strong: oklch(0.28 0.02 230);
  --ink-lead: oklch(0.32 0.02 230);
  --ink-mid: oklch(0.34 0.02 230);
  --ink-soft: oklch(0.38 0.02 230);
  --ink-body: oklch(0.4 0.02 230);
  --ink-body-2: oklch(0.42 0.02 230);
  --ink-muted: oklch(0.5 0.02 230);
  --ink-faint: oklch(0.55 0.02 230);

  /* Accent (bleu-vert biensur) */
  --accent: oklch(0.5 0.085 195);
  --accent-dark: oklch(0.4 0.085 195);
  --accent-ink: oklch(0.42 0.085 195);
  /* En hexa (et non en oklch) : cette couleur est incrustée dans les JPEG
     produits des cartes gamme, les deux doivent coïncider exactement. */
  --accent-soft: #e7f3f3;
  --accent-border: oklch(0.88 0.02 195);
  --on-accent: oklch(0.99 0.005 195);
  --on-accent-soft: oklch(0.95 0.02 195);

  /* Divers */
  --pill-border: oklch(0.87 0.02 230);
  --dark: oklch(0.26 0.02 230);
  --dark-hover: oklch(0.18 0.02 230);
  --on-dark: oklch(0.98 0.008 85);

  --font-sans: 'Public Sans', Helvetica, Arial, sans-serif;
  --font-display: 'Archivo', Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 1340px;
  --gutter: 28px;
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); text-decoration: underline; }

h1, h2, h3 { margin: 0; font-weight: 600; font-family: var(--font-display); }
p { margin: 0; }
img { max-width: 100%; }

summary { list-style: none; cursor: pointer; }
summary::-webkit-details-marker { display: none; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --------------------------------------------------------------------------
   3. Éléments partagés
   -------------------------------------------------------------------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.eyebrow--hero { letter-spacing: 0.14em; margin-bottom: 22px; }

.section-title {
  font-family: var(--font-display);
  font-size: 36px;
  letter-spacing: -0.03em;
  text-wrap: pretty;
}

.section {
  padding: 66px 0;
  border-top: 1px solid var(--border);
}

.icon { flex: none; }
.icon--stroke {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.btn {
  display: inline-block;
  border-radius: 999px;
  font-weight: 500;
  transition: background-color .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; }

.btn--dark {
  padding: 14px 26px;
  background: var(--dark);
  color: var(--on-dark);
  font-size: 15.5px;
}
.btn--dark:hover { background: var(--dark-hover); color: var(--on-dark); }

.btn--accent {
  padding: 9px 16px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: inherit;
}
.btn--accent:hover { background: var(--accent-dark); color: var(--on-accent); }

.btn--light {
  padding: 15px 28px;
  background: var(--on-accent);
  color: var(--accent-ink);
  font-weight: 600;
  font-size: 15.5px;
}
.btn--light:hover { background: oklch(0.94 0.01 195); color: var(--accent-ink); }

/* --------------------------------------------------------------------------
   4. En-tête
   -------------------------------------------------------------------------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}

.site-header__logo { display: flex; align-items: center; }
.site-header__logo img { display: block; height: 38px; width: auto; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14.5px;
}
.site-nav a { color: var(--ink-body-2); }
.site-nav a:hover { color: var(--ink); }
.site-nav .btn--accent { color: var(--on-accent); }

/* Bouton burger — masqué au-dessus de 720px (cf. media queries) */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
/* Pas de survol persistant sur écran tactile */
@media (hover: hover) {
  .nav-toggle:hover { background: var(--surface); }
}

/* Trois barres : l'élément lui-même + ses deux pseudo-éléments */
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .2s ease, opacity .15s ease;
}
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
}
.nav-toggle__bars::before { top: -7px; }
.nav-toggle__bars::after { top: 7px; }

/* État ouvert : les barres forment une croix */
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   5. Hero
   -------------------------------------------------------------------------- */
/* Bandeau pleine largeur : photo de fond + voile dégradé + texte par-dessus */
.hero {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  margin: 28px 0 84px;
  min-height: 620px;
  display: flex;
  align-items: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 40%;
}

/* Le voile éclaircit la moitié gauche pour que le texte reste lisible. */
.hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(92deg,
    rgba(253, 250, 244, 0.96) 0%,
    rgba(253, 250, 244, 0.88) 34%,
    rgba(253, 250, 244, 0.45) 55%,
    rgba(253, 250, 244, 0) 74%);
}

.hero__content {
  position: relative;
  max-width: 600px;
  padding: 76px 56px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: 56px;
  line-height: 1.03;
  letter-spacing: -0.035em;
  font-weight: 700;
  text-wrap: pretty;
}

.hero__lead {
  margin-top: 26px;
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink-lead);
  max-width: 52ch;
  text-wrap: pretty;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.reassurance {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin-top: 30px;
  padding: 0;
  margin-bottom: 0;
  list-style: none;
}
/* Posés sur la photo : un cran plus gras et plus foncé que sur fond uni. */
.reassurance li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-strong);
}

/* --------------------------------------------------------------------------
   6. Engagements
   -------------------------------------------------------------------------- */
.engagements {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 38px;
}

.engagement {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 26px 24px;
}
.engagement__icon { font-size: 26px; line-height: 1; }
.engagement__title {
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.3;
  color: var(--ink);
}
.engagement__text {
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-body);
}

/* --------------------------------------------------------------------------
   7. Gammes
   -------------------------------------------------------------------------- */
.gammes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.gamme {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface);
}

.gamme__media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
}
.gamme__media img {
  display: block;
  height: 88%;
  width: 88%;
  object-fit: contain;
}

.gamme__badge {
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border-radius: 999px;
  background: var(--on-accent);
  border: 1px solid var(--accent-border);
  box-shadow: 0 1px 2px oklch(0.5 0.02 230 / 0.06);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-mid);
}
.gamme__badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50% 50% 50% 0;
  background: var(--accent);
  transform: rotate(-45deg);
  display: block;
}

.gamme__body { padding: 24px; }
.gamme__title {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.2;
}
.gamme__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--pill-border);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
}
.tag__symbol {
  font-size: 14px;
  line-height: 1;
  color: var(--accent);
}
.gamme__text {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-body-2);
}

/* --------------------------------------------------------------------------
   8. La marque
   -------------------------------------------------------------------------- */
.marque {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.marque__media {
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  overflow: hidden;
  background: var(--accent-soft);   /* le temps que la photo se charge */
}
.marque__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 32%;
}
.marque__text {
  margin-top: 22px;
  font-size: 17.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  text-wrap: pretty;
}
.marque__text + .marque__text { margin-top: 18px; }

/* --------------------------------------------------------------------------
   9. Abonnement (bandeau accent)
   -------------------------------------------------------------------------- */
.abo {
  margin: 20px 0 0;
  padding: 52px 48px;
  border-radius: 14px;
  background: var(--accent);
  color: var(--on-accent);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}
.abo__title {
  font-family: var(--font-display);
  font-size: 32px;
  letter-spacing: -0.03em;
}
.abo__text {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--on-accent-soft);
  max-width: 54ch;
}
.abo__action { justify-self: end; }

/* --------------------------------------------------------------------------
   10. FAQ
   -------------------------------------------------------------------------- */
.faq { padding: 70px 0 66px; }

.faq__list {
  margin-top: 32px;
  border-top: 1px solid var(--border);
}
.faq__item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
/* La section Contact apporte déjà son propre filet : pas de double trait */
.faq__item:last-child { border-bottom: 0; }
.faq__question {
  font-size: 19px;
  font-weight: 500;
  color: var(--ink-strong);
}
.faq__question:hover { color: var(--accent); }
.faq__answer {
  margin-top: 14px;
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink-body-2);
  max-width: 78ch;
}

/* --------------------------------------------------------------------------
   11. Contact
   -------------------------------------------------------------------------- */
.contact {
  padding: 56px 0 76px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
}
.contact__title {
  font-family: var(--font-display);
  font-size: 34px;
  letter-spacing: -0.03em;
}
.contact__text {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-body-2);
  max-width: 48ch;
}
.contact__aside { justify-self: start; }
.contact__mail {
  font-family: var(--font-display);
  font-size: 30px;
  letter-spacing: -0.02em;
}
.contact__meta {
  margin-top: 12px;
  font-size: 15px;
  color: var(--ink-muted);
}

/* --------------------------------------------------------------------------
   12. Pied de page
   -------------------------------------------------------------------------- */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
  justify-content: space-between;
  padding: 26px 0 40px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--ink-faint);
}
.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 18px;
}
.site-footer__brand img {
  display: block;
  height: 28px;
  width: auto;
  opacity: 0.55;
}

/* --------------------------------------------------------------------------
   13. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero {
    min-height: 520px;
    margin-bottom: 64px;
  }
  .hero__content { max-width: 520px; padding: 56px 36px; }
  .hero__title { font-size: 46px; }
  /* Moins de largeur pour le texte : le voile doit couvrir plus loin. */
  .hero__veil {
    background: linear-gradient(92deg,
      rgba(253, 250, 244, 0.97) 0%,
      rgba(253, 250, 244, 0.92) 45%,
      rgba(253, 250, 244, 0.55) 68%,
      rgba(253, 250, 244, 0) 88%);
  }

  .engagements { grid-template-columns: repeat(2, 1fr); }

  .marque { grid-template-columns: 1fr; gap: 36px; }
  .marque__media { max-width: 460px; }

  .abo { grid-template-columns: 1fr; padding: 42px 32px; gap: 28px; }
  .abo__action { justify-self: start; }

  .contact { grid-template-columns: 1fr; gap: 28px; align-items: start; }
}

@media (max-width: 720px) {
  :root { --gutter: 20px; }

  /* En-tête : logo à gauche, burger à droite, menu déplié en dessous */
  .site-header {
    flex-wrap: wrap;
    gap: 0;
    padding: 16px 0;
  }
  .site-header__logo img { height: 32px; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    font-size: 16px;
  }
  .site-nav a {
    padding: 13px 0;
    border-bottom: 1px solid var(--border);
  }
  .site-nav .btn--accent {
    align-self: flex-start;
    margin-top: 16px;
    padding: 12px 22px;
    border-bottom: 0;
  }

  /* Sans JS le menu reste visible ; avec JS il s'ouvre au clic sur le burger. */
  .js .site-nav { display: none; padding-top: 8px; }
  .js .site-nav[data-open] { display: flex; }

  /* Surtitres : tenir sur une seule ligne quelle que soit la largeur */
  .eyebrow,
  .eyebrow--hero {
    font-size: clamp(8px, 2.5vw, 12px);
    letter-spacing: 0.08em;
    white-space: nowrap;
  }

  /* En portrait le texte recouvre toute la photo : voile vertical, quasi opaque
     en haut, plus transparent en bas où la photo peut respirer. */
  .hero {
    min-height: 0;
    margin: 20px 0 48px;
    align-items: flex-start;
  }
  /* Cadrage sur le visage : en portrait, on ne voit qu'une tranche de la photo. */
  .hero__bg { object-position: 68% 18%; }
  .hero__veil {
    background: linear-gradient(180deg,
      rgba(253, 250, 244, 0.93) 0%,
      rgba(253, 250, 244, 0.90) 55%,
      rgba(253, 250, 244, 0.74) 100%);
  }
  .hero__content { max-width: none; padding: 40px 24px 44px; }
  .hero__title { font-size: 38px; }
  .hero__lead { font-size: 17px; }

  .section, .faq { padding: 48px 0; }
  .section-title { font-size: 28px; }

  .engagements { grid-template-columns: 1fr; }
  .gammes { grid-template-columns: 1fr; }

  .abo__title { font-size: 26px; }
  .contact__title { font-size: 26px; }
  .contact__mail { font-size: 22px; word-break: break-word; }

  .faq__question { font-size: 17px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}