/* Landing AL DEV TECH — charte « Encre indigo », voir design/tokens.md */

@font-face {
  font-family: 'Onest';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/assets/fonts/onest-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2026, U+20AC;
}
@font-face {
  font-family: 'Onest';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/assets/fonts/onest-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+1E00-1E9F, U+20A0-20C0;
}

:root {
  --encre: #191826;
  --accent: #3b2f8f;
  --accent-hover: #332876;
  --accent-clair: #a89cf5;
  --fond: #f6f6f8;
  --surface: #fff;
  --texte-2: #55536b;
  --muted: #a09eb4;
  --bord: #eeedf2;
  --neutre: #dcdbe6;
  --sombre-texte: #b9b7cc;
  --sombre-muted: #8886a0;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Onest', sans-serif;
  -webkit-font-smoothing: antialiased;
  background: var(--fond);
  color: var(--encre);
  font-size: 15px;
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; transition: color 0.25s; }
a:hover { color: var(--encre); }

h1, h2 { margin: 0; letter-spacing: -0.025em; font-weight: 500; text-wrap: balance; }

/* ---- Header ---- */
.entete {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 246, 248, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(25, 24, 38, 0.06);
}
.entete-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 28px;
}
.logo { font-weight: 600; font-size: 15px; letter-spacing: 0.14em; color: var(--encre); }
.nav { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; font-size: 14px; }
.nav a { color: var(--texte-2); }
.nav a:hover { color: var(--encre); }

/* ---- Boutons ---- */
.cta {
  display: inline-block;
  background: var(--accent);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 13.5px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  text-align: center;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}
.cta:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(59, 47, 143, 0.25); }
.cta.grand { padding: 15px 30px; font-size: 15.5px; box-shadow: 0 10px 26px rgba(59, 47, 143, 0.28); }
.cta.contour { background: #fff; color: var(--accent) !important; border: 1.5px solid var(--accent); font-weight: 600; }
.cta.contour:hover { background: var(--accent); color: #fff !important; }
.cta.blanc { background: #fff; color: var(--encre) !important; font-weight: 600; }
.cta.blanc:hover { background: #fff; box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3); }
.lien-fleche { font-weight: 500; font-size: 15px; }

/* ---- Sections ---- */
.bloc { max-width: 1200px; margin: 0 auto; padding: clamp(32px, 5vw, 56px) 28px; }
.centre { text-align: center; }
.kicker {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.centre h2, .bloc h2 { font-size: clamp(28px, 3.5vw, 36px); margin-top: 10px; }
.sous-section { margin: 12px auto 0; max-width: 520px; color: var(--texte-2); font-weight: 300; }

/* ---- Hero ---- */
.hero { padding: clamp(64px, 9vw, 110px) 28px clamp(40px, 6vw, 72px); text-align: center; }
.hero h1 { max-width: 800px; margin: 0 auto; font-size: clamp(38px, 5.5vw, 60px); line-height: 1.05; letter-spacing: -0.035em; font-weight: 400; }
.hero h1 em { font-style: normal; color: var(--accent); font-weight: 600; }
.hero p { margin: 26px auto 0; max-width: 620px; font-size: clamp(16px, 2vw, 17.5px); line-height: 1.6; color: var(--texte-2); font-weight: 300; text-wrap: pretty; }
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 22px; flex-wrap: wrap; margin-top: 36px; }

/* ---- Réassurance ---- */
.reassurance { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; padding-top: 0; padding-bottom: 0; }
.carte-r { background: var(--surface); border-radius: 16px; padding: 24px 26px; box-shadow: 0 8px 30px rgba(25, 24, 38, 0.07); }
.carte-r strong { display: block; font-weight: 600; font-size: 15px; }
.carte-r span { display: block; font-size: 13.5px; color: var(--texte-2); margin-top: 5px; }

/* ---- Bénéfices ---- */
.benefices .centre h2 { margin-bottom: 48px; }
.trois-colonnes { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.colonne { padding: 4px 28px 8px; border-left: 2px solid var(--neutre); }
.colonne.active { border-left-color: var(--accent); }
.colonne strong { font-weight: 600; font-size: 18px; }
.colonne p { margin: 10px 0 0; font-size: 14.5px; line-height: 1.65; color: var(--texte-2); }

/* ---- Manifeste ---- */
.manifeste { background: var(--encre); color: #fff; border-radius: 24px; padding: clamp(40px, 6vw, 64px); text-align: center; }
.manifeste h2 { font-size: clamp(30px, 4vw, 42px); letter-spacing: -0.03em; }
.manifeste h2 em { font-style: normal; color: var(--accent-clair); }
.manifeste p { margin: 22px auto 0; max-width: 640px; font-size: 16px; line-height: 1.7; color: var(--sombre-texte); font-weight: 300; text-wrap: pretty; }

/* ---- Méthode ---- */
#methode .centre h2 { margin-bottom: 48px; }
.grille-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; align-items: stretch; }
.carte-etape { background: var(--surface); border-radius: 20px; padding: 30px; box-shadow: 0 8px 30px rgba(25, 24, 38, 0.06); transition: transform 0.35s, box-shadow 0.35s; }
.carte-etape:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(25, 24, 38, 0.1); }
.etape-num { font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase; }
.carte-etape strong { display: block; font-weight: 600; font-size: 18px; margin-top: 12px; }
.carte-etape p { margin: 10px 0 0; font-size: 14px; line-height: 1.65; color: var(--texte-2); }
.carte-etape b { color: var(--encre); font-weight: 600; }

/* ---- Chairli ---- */
.carte-chairli {
  background: var(--surface);
  border-radius: 24px;
  padding: clamp(36px, 5vw, 56px);
  box-shadow: 0 8px 30px rgba(25, 24, 38, 0.06);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}
.carte-chairli h2 { font-size: clamp(26px, 3vw, 32px); }
.carte-chairli p { margin: 18px 0 0; font-size: 14.5px; line-height: 1.7; color: var(--texte-2); }
.citation { margin: 24px 0 20px; background: var(--fond); border-left: 2px solid var(--accent); border-radius: 0 12px 12px 0; padding: 16px 20px; font-size: 14.5px; line-height: 1.6; }
.citation b { color: var(--accent); font-weight: 600; }
/* Carrousel Chairli : cadres et images stylés inline dans index.html (structure maquette) */

/* ---- Formules ---- */
#formules .sous-section { margin-bottom: 48px; }
.formules { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; max-width: 880px; margin: 0 auto; align-items: stretch; }
.carte-formule {
  background: var(--surface);
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 8px 30px rgba(25, 24, 38, 0.06);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.35s, box-shadow 0.35s;
}
.carte-formule:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(25, 24, 38, 0.1); }
.carte-formule.sombre { background: var(--encre); color: #fff; }
.carte-formule.sombre:hover { box-shadow: 0 20px 48px rgba(25, 24, 38, 0.28); }
.badge-formule { position: absolute; top: -12px; left: 30px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 500; padding: 4px 14px; border-radius: 999px; }
.carte-formule > strong { font-weight: 600; font-size: 16px; }
.prix { font-size: 38px; font-weight: 600; letter-spacing: -0.02em; margin-top: 12px; }
.prix span { font-size: 14px; font-weight: 400; color: var(--muted); }
.carte-formule.sombre .prix span { color: var(--sombre-muted); }
.prix-sous { font-size: 13px; color: var(--texte-2); margin-top: 4px; }
.carte-formule.sombre .prix-sous { color: var(--sombre-texte); }
.carte-formule ul { list-style: none; margin: 22px 0 0; padding: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14px; line-height: 1.55; color: var(--texte-2); }
.carte-formule.sombre ul { color: var(--sombre-texte); }
.carte-formule li { padding-left: 24px; position: relative; }
.carte-formule li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 600; }
.carte-formule.sombre li::before { color: var(--accent-clair); }
.pied-formule { margin-top: auto; padding-top: 24px; }
.total { font-size: 12.5px; color: var(--muted); margin-bottom: 14px; }
.carte-formule.sombre .total { color: var(--sombre-muted); }
.pied-formule .cta { display: block; padding: 12px; font-size: 14.5px; }
.note-formules { text-align: center; margin: 32px auto 0; max-width: 620px; font-size: 13.5px; line-height: 1.6; color: var(--muted); font-style: italic; }

/* ---- FAQ ---- */
.faq-bloc { max-width: 760px; }
.faq-bloc .centre h2 { margin-bottom: 36px; }
.faq { background: var(--surface); border-radius: 20px; box-shadow: 0 8px 30px rgba(25, 24, 38, 0.06); overflow: hidden; }
.faq-item + .faq-item { border-top: 1px solid var(--bord); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  color: var(--encre);
  text-align: left;
  transition: background 0.25s;
}
.faq-q:hover { background: #fafafc; }
.faq-q .plus {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: var(--fond);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 500;
  transition: transform 0.3s;
}
.faq-item.ouvert .plus { transform: rotate(45deg); }
.faq-a { margin: 0; padding: 0 26px 22px; font-size: 14px; line-height: 1.65; color: var(--texte-2); max-width: 640px; display: none; }
.faq-item.ouvert .faq-a { display: block; }

/* ---- Contact ---- */
.contact {
  background: var(--encre);
  border-radius: 24px;
  padding: clamp(36px, 5vw, 64px);
  color: #fff;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}
.contact h2 { font-size: clamp(28px, 3.5vw, 38px); line-height: 1.15; letter-spacing: -0.03em; }
.contact-sous { margin: 20px 0 0; font-size: 15px; line-height: 1.6; color: var(--sombre-texte); font-weight: 300; }
.contact-tel-intro { margin: 28px 0 0; font-size: 14px; color: var(--sombre-muted); }
.contact-tel { display: inline-block; margin-top: 6px; font-size: 22px; font-weight: 600; color: #fff; letter-spacing: 0.02em; }
.contact-tel:hover { color: var(--accent-clair); }
.contact form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 0; }
.contact input, .contact textarea {
  width: 100%;
  min-width: 0;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 14px 16px;
  color: #fff;
  font-family: inherit;
  font-size: 14px;
  outline: none;
  resize: vertical;
  transition: border-color 0.25s;
}
.contact input:focus, .contact textarea:focus { border-color: var(--accent-clair); }
.contact ::placeholder { color: var(--sombre-muted); }
.pleine { grid-column: span 2; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.contact .cta { padding: 15px; font-weight: 600; font-size: 15px; }
.form-retour { margin: 0; font-size: 14px; color: var(--accent-clair); }
@media (max-width: 560px) {
  .contact form { grid-template-columns: 1fr; }
  .pleine { grid-column: span 1; }
}

/* ---- Footer ---- */
footer {
  border-top: 1px solid rgba(25, 24, 38, 0.08);
  padding: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}
footer a { color: var(--muted); }
footer a:hover { color: var(--encre); }
.logo-pied { font-weight: 600; letter-spacing: 0.12em; color: var(--texte-2); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}