/* Biloka — page de présentation. Mêmes polices et couleurs que l'application. */
@font-face { font-family: "Bricolage"; src: url("/static/fonts/bricolage.woff2") format("woff2"); font-weight: 200 800; font-display: swap; }
@font-face { font-family: "Atkinson"; src: url("/static/fonts/atkinson-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Atkinson"; src: url("/static/fonts/atkinson-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --fond: #eef1ef; --papier: #f7f8f6; --surface: #ffffff; --encre: #1c2328; --encre-2: #4f5960; --discret: #6f797f;
  --trait: #d9dfdc; --pa: #1f5f6b; --pb: #c2861a; --pa-clair: #d7e6e8; --pb-clair: #f4e6c8; --nuit: #13353c;
  --display: "Bricolage", ui-sans-serif, system-ui, sans-serif;
  --texte: "Atkinson", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --max: 1160px; --rayon: 22px;
  --ombre-tel: 0 1px 0 rgba(28,35,40,.05), 0 30px 60px -28px rgba(19,53,60,.45), 0 12px 24px -16px rgba(19,53,60,.25);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --fond: #121719; --papier: #171d20; --surface: #1e2427; --encre: #e8ecea; --encre-2: #b6bfbb; --discret: #8c9692;
    --trait: #2c3438; --pa: #5aa9b6; --pb: #e0a93f; --pa-clair: #1c3a40; --pb-clair: #3b2f17; --nuit: #0d2227; color-scheme: dark; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
html, body { overflow-x: clip; }
body { margin: 0; background: var(--fond); color: var(--encre); font: 400 1.0625rem/1.6 var(--texte); overflow-x: hidden;
  /* grain discret : la page a la matière d'un carnet, pas d'un écran */
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .035 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>"); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -.025em; line-height: 1.05; margin: 0; }
p { margin: 0; }
sup { line-height: 0; }
.evitement { position: absolute; left: -999px; top: 8px; background: var(--encre); color: var(--fond); padding: 8px 14px; border-radius: 8px; z-index: 10; }
.evitement:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--pb); outline-offset: 3px; border-radius: 6px; }

/* --- boutons --- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 52px; padding: 0 26px; border-radius: 999px;
  background: var(--encre); color: var(--fond); text-decoration: none; font: 700 1.02rem/1 var(--texte); border: 2px solid var(--encre);
  transition: transform .18s ease, box-shadow .18s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 22px -12px rgba(0,0,0,.5); }
.btn-second { background: transparent; color: var(--encre); }
.btn-petit { min-height: 42px; padding: 0 18px; font-size: .95rem; }

/* --- en-tête --- */
.tete { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 24px;
  padding: calc(12px + env(safe-area-inset-top)) max(20px, calc((100% - var(--max)) / 2 + 20px)) 12px;
  background: color-mix(in srgb, var(--fond) 84%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--trait) 60%, transparent); }
.marque { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.marque .logo { width: 38px; height: auto; color: var(--encre); }
.marque b { font: 700 1.3rem/1 var(--display); letter-spacing: -.02em; }
.menu { display: flex; gap: 22px; margin-left: auto; }
.menu a { text-decoration: none; color: var(--encre-2); font-weight: 700; font-size: .95rem; }
.menu a:hover { color: var(--encre); }
.tete-actions { display: flex; align-items: center; gap: 14px; }
.lien-connexion { font-weight: 700; font-size: .95rem; text-decoration: none; }
.lien-connexion:hover { text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 860px) { .menu { display: none; } .tete-actions { margin-left: auto; } }
@media (max-width: 420px) { .tete .btn { display: none; } }

/* --- ouverture --- */
.ouverture { max-width: var(--max); margin: 0 auto; padding: 56px 20px 40px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.surtitre { font: 700 .82rem/1.3 var(--texte); text-transform: uppercase; letter-spacing: .12em; color: var(--pa); margin-bottom: 16px; }
.surtitre.centre, .centre { text-align: center; }
.ouverture h1 { font-size: clamp(2.7rem, 5.3vw, 4.7rem); font-weight: 800; }
.soulign { background: linear-gradient(90deg, var(--pa), var(--pb)); -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-bottom: .08em; }
.chapeau { margin-top: 24px; font-size: 1.2rem; color: var(--encre-2); max-width: 34em; }
.chapeau strong { color: var(--encre); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.note-cta { margin-top: 12px; font-size: .92rem; color: var(--discret); }
.gages { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.gages li { font-weight: 700; font-size: .88rem; padding: 7px 14px 7px 30px; border-radius: 999px; background: var(--surface); border: 1px solid var(--trait); position: relative; }
.gages li::before { content: ""; position: absolute; left: 12px; top: 50%; width: 10px; height: 10px; margin-top: -5px; border-radius: 3px;
  background: var(--pa); transform: rotate(45deg) scale(.8); }
.gages li:nth-child(even)::before { background: var(--pb); }

.ouverture-visuel { position: relative; height: 620px; }
.arc { position: absolute; left: 0; top: 0; width: 100%; height: 100%; color: var(--encre); opacity: .7; z-index: 0; pointer-events: none; overflow: visible; }
.enfant-point { fill: var(--encre); }
.telephone { margin: 0; border-radius: 34px; padding: 9px; background: var(--encre); box-shadow: var(--ombre-tel); }
.telephone img { border-radius: 26px; width: 100%; }
.ouverture-visuel .telephone { position: absolute; width: 46%; z-index: 1; }
.telephone-avant { left: 6%; bottom: 0; transform: rotate(-4deg); animation: lever .9s .15s both cubic-bezier(.2,.8,.2,1); }
.telephone-arriere { right: 4%; bottom: 46px; transform: rotate(5deg); animation: lever .9s .3s both cubic-bezier(.2,.8,.2,1); }
@keyframes lever { from { opacity: 0; translate: 0 40px; } to { opacity: 1; translate: 0 0; } }
.etiquette { position: absolute; z-index: 2; font: 700 .9rem/1 var(--texte); padding: 10px 16px; border-radius: 999px; box-shadow: 0 10px 24px -14px rgba(0,0,0,.5);
  animation: lever .8s .6s both ease-out; }
.etiquette-a { left: 0; top: 70px; background: var(--pa); color: #fff; }
.etiquette-b { right: -6px; top: 330px; background: var(--pb); color: #1c2328; animation-delay: .8s; }

@media (max-width: 900px) {
  .ouverture { grid-template-columns: 1fr; padding-top: 28px; }
  .ouverture-visuel { height: 520px; max-width: 520px; width: 100%; margin: 0 auto; }
}
@media (max-width: 520px) { .ouverture-visuel { height: 440px; } .etiquette { font-size: .8rem; } }

/* --- sections --- */
section { scroll-margin-top: 80px; }
.titre-section { font-size: clamp(2rem, 4.2vw, 3.2rem); font-weight: 800; max-width: 20em; margin: 0 auto; }
.constat, .fonctions, .pourquoi, .partout, .questions { max-width: var(--max); margin: 0 auto; padding: 88px 20px; }
.trois { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
@media (max-width: 860px) { .trois { grid-template-columns: 1fr; } }

.constat .titre-section { max-width: 16em; margin: 0; }
.constat article { background: var(--surface); border: 1px solid var(--trait); border-radius: var(--rayon); padding: 26px; }
.constat article p:not(.citation) { color: var(--encre-2); }
.citation { font: 700 1.35rem/1.25 var(--display); letter-spacing: -.015em; margin-bottom: 14px; }
.constat article:nth-child(1) .citation { color: var(--pa); }
.constat article:nth-child(2) .citation { color: var(--pb); }
.reponse { margin-top: 36px; font-size: 1.3rem; font-family: var(--display); letter-spacing: -.01em; }

/* --- fonctions --- */
.fonctions .titre-section { margin-bottom: 30px; }
.fonction { display: grid; grid-template-columns: 340px 1fr; gap: 72px; align-items: center; padding: 56px 0; border-top: 1px solid var(--trait); }
.fonction:first-of-type { border-top: 0; }
.fonction .telephone { max-width: 320px; transform: rotate(-2deg); transition: transform .4s ease; }
.fonction:hover .telephone { transform: rotate(0) translateY(-4px); }
.fonction.inverse { grid-template-columns: 1fr 340px; }
.fonction.inverse .telephone { order: 2; transform: rotate(2deg); }
.numero { font: 700 .85rem/1 var(--texte); letter-spacing: .1em; text-transform: uppercase; color: var(--pb); margin-bottom: 14px; }
.fonction h3 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; margin-bottom: 16px; }
.fonction-texte > p { color: var(--encre-2); font-size: 1.1rem; max-width: 34em; }
.puces { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; }
.puces li { position: relative; padding-left: 28px; }
.puces li::before { content: ""; position: absolute; left: 4px; top: .55em; width: 10px; height: 10px; border-radius: 50%;
  background: conic-gradient(var(--pa) 0 50%, var(--pb) 0 100%); }
.encadre { margin-top: 22px !important; padding: 16px 18px; border-radius: 14px; background: var(--pa-clair); color: var(--encre) !important; font-size: 1rem !important; }
.vedette .numero { color: var(--pa); }
.vedette .fonction-texte { position: relative; }
@media (max-width: 860px) {
  .fonction, .fonction.inverse { grid-template-columns: 1fr; gap: 32px; padding: 44px 0; }
  .fonction .telephone, .fonction.inverse .telephone { order: 0; max-width: 260px; margin: 0 auto; }
}

/* --- principe --- */
.principe { background: var(--nuit); color: #eef3f2; padding: 96px 20px; position: relative; overflow: hidden; }
.principe::before, .principe::after { content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%; filter: blur(80px); opacity: .35; }
.principe::before { background: #1f5f6b; left: -180px; top: -200px; }
.principe::after { background: #c2861a; right: -220px; bottom: -260px; opacity: .25; }
.principe-interieur { max-width: var(--max); margin: 0 auto; position: relative; z-index: 1; }
.principe .surtitre { color: #e0a93f; }
.principe h2 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 800; max-width: 14em; }
.principe .trois > div { border-top: 2px solid rgba(255,255,255,.18); padding-top: 18px; }
.principe h3 { font-size: 1.3rem; margin-bottom: 10px; }
.principe p { color: #c5d3d3; }
.principe strong { color: #fff; }
.proches { margin-top: 48px; padding: 22px 24px; border-radius: var(--rayon); background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); max-width: 46em; }

/* --- pourquoi --- */
.pourquoi .titre-section { margin-bottom: 44px; }
.prix { display: grid; grid-template-columns: 1fr 1fr; border-radius: 28px; overflow: hidden; box-shadow: var(--ombre-tel); max-width: 900px; margin: 0 auto; }
.prix > div { padding: 34px 32px; }
.prix-eux { background: var(--surface); }
.prix-nous { background: var(--pa); color: #fff; }
.prix-montant { font: 800 clamp(2.6rem, 6vw, 4.2rem)/1 var(--display); letter-spacing: -.04em; margin-bottom: 12px; }
.prix-eux .prix-montant { color: var(--discret); }
.prix-eux p:not(.prix-montant) { color: var(--encre-2); }
.prix sup a { text-decoration: none; }
@media (max-width: 680px) { .prix { grid-template-columns: 1fr; } }
.atouts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 56px; }
.atouts article { background: var(--surface); border: 1px solid var(--trait); border-radius: var(--rayon); padding: 26px; transition: transform .2s ease, border-color .2s ease; }
.atouts article:hover { transform: translateY(-3px); border-color: var(--pa); }
.atouts h3 { font-size: 1.25rem; margin: 14px 0 8px; }
.atouts p { color: var(--encre-2); }
.pictogramme { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; font: 800 1.05rem/1 var(--display);
  background: var(--pb-clair); color: var(--encre); }
.atouts article:nth-child(odd) .pictogramme { background: var(--pa-clair); }
@media (max-width: 960px) { .atouts { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .atouts { grid-template-columns: 1fr; } }
.source { margin-top: 22px; font-size: .85rem; color: var(--discret); text-align: center; }

/* --- plateformes et questions --- */
.plateformes > div { background: var(--papier); border: 1px dashed var(--trait); border-radius: var(--rayon); padding: 24px; }
.plateformes h3 { font-size: 1.2rem; margin-bottom: 8px; }
.plateformes p { color: var(--encre-2); }
.questions { max-width: 820px; }
.questions .titre-section { margin-bottom: 30px; }
.questions details { border-top: 1px solid var(--trait); padding: 4px 0; }
.questions details:last-of-type { border-bottom: 1px solid var(--trait); }
.questions summary { cursor: pointer; list-style: none; font: 700 1.2rem/1.3 var(--display); padding: 18px 40px 18px 0; position: relative; }
.questions summary::-webkit-details-marker { display: none; }
.questions summary::after { content: "+"; position: absolute; right: 6px; top: 50%; translate: 0 -50%; font-size: 1.6rem; color: var(--pb); transition: rotate .2s ease; }
.questions details[open] summary::after { rotate: 45deg; }
.questions details p { color: var(--encre-2); padding: 0 0 20px; max-width: 42em; }

/* --- dernier appel et pied --- */
.final { text-align: center; padding: 80px 20px 96px; }
.final .logo.grand { width: 120px; height: auto; margin: 0 auto 26px; color: var(--encre); }
.final h2 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; margin-bottom: 30px; }
.pied { max-width: var(--max); margin: 0 auto; padding: 28px 20px calc(28px + env(safe-area-inset-bottom)); border-top: 1px solid var(--trait);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; color: var(--encre-2); font-size: .95rem; }
.pied nav { display: flex; flex-wrap: wrap; gap: 18px; }
.pied a { text-decoration: none; }
.pied a:hover { text-decoration: underline; }

/* --- apparition au défilement (activée par le script ; sans script, tout est visible) --- */
.js .apparait { opacity: 0; translate: 0 26px; transition: opacity .7s ease, translate .7s cubic-bezier(.2,.8,.2,1); }
.js .apparait.vu { opacity: 1; translate: 0 0; }