/* Site vitrine Prof Kouma — charte « Nuit & Or » de l'application élève. */

@font-face { font-family: "DM Sans"; src: url("../fonts/dm-sans-400.woff") format("woff"); font-weight: 400; font-display: swap; }
@font-face { font-family: "DM Sans"; src: url("../fonts/dm-sans-500.woff") format("woff"); font-weight: 500; font-display: swap; }
@font-face { font-family: "DM Sans"; src: url("../fonts/dm-sans-700.woff") format("woff"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("../fonts/playfair-600.woff") format("woff"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("../fonts/playfair-700.woff") format("woff"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Playfair Display"; src: url("../fonts/playfair-500-italic.woff") format("woff"); font-weight: 500; font-style: italic; font-display: swap; }

:root {
  --nuit: #0b0f22;
  --nuit-2: #10153a;
  --surface: #151b42;
  --surface-2: #1b2252;
  --ligne: rgba(217, 178, 106, 0.22);
  --ligne-douce: rgba(185, 192, 218, 0.14);
  --or: #d9b26a;
  --or-clair: #f0d49a;
  --or-fonce: #b98b3e;
  --creme: #f6eede;
  --texte: #e6e3f0;
  --brume: #b9c0da;
  --degrade-or: linear-gradient(135deg, var(--or-clair), var(--or) 52%, var(--or-fonce));
  --rayon: 22px;
  --ombre: 0 24px 60px rgba(0, 0, 0, 0.45);
  --largeur: 1120px;
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--nuit);
  color: var(--texte);
  font: 400 1.0625rem/1.65 "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: var(--or-clair); text-underline-offset: 3px; }
a:hover { color: var(--creme); }

:focus-visible { outline: 2px solid var(--or-clair); outline-offset: 3px; border-radius: 6px; }

h1, h2, h3 {
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 700;
  color: var(--creme);
  line-height: 1.15;
  margin: 0 0 0.5em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.25rem, 7vw, 3.75rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.75rem, 5vw, 2.6rem); }
h3 { font-size: 1.3rem; font-weight: 600; }
p { margin: 0 0 1em; }
.or { color: var(--or); }
em.serif { font-family: "Playfair Display", Georgia, serif; font-style: italic; font-weight: 500; }

.surtitre {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 0.9rem;
}

.conteneur { width: 100%; max-width: var(--largeur); margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .conteneur { padding: 0 28px; } }

.lien-evitement { position: absolute; left: -9999px; top: 8px; }
.lien-evitement:focus { left: 8px; z-index: 100; background: var(--creme); color: var(--nuit); padding: 8px 14px; border-radius: 10px; }

/* ---------- En-tête ---------- */
.entete {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 34, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ligne-douce);
}
.entete .conteneur { display: flex; align-items: center; gap: 16px; min-height: 68px; }
.marque { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--creme); margin-right: auto; }
.marque img { width: 40px; height: 40px; border-radius: 11px; }
.marque span { font-family: "Playfair Display", Georgia, serif; font-weight: 700; font-size: 1.2rem; }
.nav { display: none; gap: 26px; }
.nav a { color: var(--brume); text-decoration: none; font-weight: 500; font-size: 0.97rem; }
.nav a:hover { color: var(--creme); }
@media (min-width: 900px) { .nav { display: flex; } }

/* ---------- Boutons ---------- */
.bouton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.bouton svg { width: 22px; height: 22px; flex: none; }
.bouton-or { background: var(--degrade-or); color: var(--nuit); box-shadow: 0 10px 30px rgba(217, 178, 106, 0.25); }
.bouton-or:hover { color: var(--nuit); transform: translateY(-1px); box-shadow: 0 14px 34px rgba(217, 178, 106, 0.35); }
.bouton-contour { border: 1.5px solid var(--ligne); color: var(--creme); background: rgba(255, 255, 255, 0.02); }
.bouton-contour:hover { color: var(--creme); border-color: var(--or); background: rgba(217, 178, 106, 0.08); }
.bouton-petit { min-height: 42px; padding: 0 18px; font-size: 0.93rem; }
.bouton-petit svg { width: 18px; height: 18px; }
.groupe-boutons { display: flex; flex-wrap: wrap; gap: 12px; }
.groupe-boutons .bouton { flex: 1 1 100%; }
@media (min-width: 560px) { .groupe-boutons .bouton { flex: 0 0 auto; } }

/* ---------- Héros ---------- */
.heros { position: relative; padding: 56px 0 72px; overflow: hidden; }
.heros::before {
  content: "";
  position: absolute;
  inset: -30% -20% auto auto;
  width: 760px;
  height: 760px;
  background: radial-gradient(closest-side, rgba(92, 78, 170, 0.42), transparent 70%);
  pointer-events: none;
}
.heros::after {
  content: "";
  position: absolute;
  left: -200px;
  bottom: -300px;
  width: 620px;
  height: 620px;
  background: radial-gradient(closest-side, rgba(217, 178, 106, 0.13), transparent 70%);
  pointer-events: none;
}
.heros .conteneur { position: relative; z-index: 1; display: grid; gap: 48px; align-items: center; }
.heros p.chapo { font-size: 1.15rem; color: var(--brume); max-width: 34em; }
.heros .note { margin-top: 16px; font-size: 0.9rem; color: var(--brume); display: flex; flex-wrap: wrap; gap: 8px 18px; }
.heros .note span { display: inline-flex; align-items: center; gap: 6px; }
.heros .note svg { width: 16px; height: 16px; color: var(--or); }
@media (min-width: 900px) {
  .heros { padding: 88px 0 104px; }
  .heros .conteneur { grid-template-columns: 1.1fr 0.9fr; }
}

/* ---------- Téléphones ---------- */
.telephone {
  position: relative;
  width: min(280px, 72vw);
  aspect-ratio: 1080 / 2400;
  border-radius: 38px;
  padding: 9px;
  background: linear-gradient(160deg, #2a3164, #0d1130 60%);
  box-shadow: var(--ombre), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  flex: none;
}
.telephone img { width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 30px; }
.vitrine { display: flex; justify-content: center; align-items: flex-end; gap: 0; }
.vitrine .telephone + .telephone { margin-left: -70px; transform: translateY(26px) rotate(4deg); width: min(240px, 60vw); z-index: -1; opacity: 0.92; }
.vitrine .telephone:first-child { transform: rotate(-3deg); }
@media (max-width: 420px) { .vitrine .telephone + .telephone { display: none; } .vitrine .telephone:first-child { transform: none; } }

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section-claire { background: linear-gradient(180deg, var(--nuit-2), var(--nuit)); border-top: 1px solid var(--ligne-douce); border-bottom: 1px solid var(--ligne-douce); }
.entete-section { max-width: 44em; margin-bottom: 40px; }
.entete-section p { color: var(--brume); font-size: 1.08rem; }
@media (min-width: 900px) { .section { padding: 104px 0; } }

/* Chiffres */
.chiffres { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 8px; }
.chiffre { padding: 20px; border-radius: var(--rayon); background: var(--surface); border: 1px solid var(--ligne-douce); }
.chiffre strong { display: block; font-family: "Playfair Display", Georgia, serif; font-weight: 700; font-size: 2rem; color: var(--or); line-height: 1.1; }
.chiffre span { color: var(--brume); font-size: 0.95rem; }
@media (min-width: 900px) { .chiffres { grid-template-columns: repeat(4, 1fr); } }

/* Cartes */
.grille { display: grid; gap: 16px; }
@media (min-width: 700px) { .grille-2 { grid-template-columns: repeat(2, 1fr); } .grille-3 { grid-template-columns: repeat(3, 1fr); } }
.carte {
  position: relative;
  padding: 26px;
  border-radius: var(--rayon);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--ligne-douce);
}
.carte p { color: var(--brume); margin-bottom: 0; }
.carte .icone {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: rgba(217, 178, 106, 0.12);
  border: 1px solid var(--ligne);
  color: var(--or);
  margin-bottom: 18px;
}
.carte .icone svg { width: 26px; height: 26px; }

/* Niveaux */
.niveau { overflow: hidden; }
.niveau .numero {
  position: absolute;
  right: 18px;
  top: 6px;
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 700;
  font-size: 5.5rem;
  line-height: 1;
  color: rgba(217, 178, 106, 0.1);
}
.pastilles { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.pastille {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(217, 178, 106, 0.1);
  color: var(--or-clair);
  border: 1px solid var(--ligne);
}

/* Fonctionnalités avec capture */
.fonction { display: grid; gap: 36px; align-items: center; padding: 28px 0; }
.fonction + .fonction { border-top: 1px solid var(--ligne-douce); }
.fonction .telephone { margin: 0 auto; width: min(250px, 66vw); }
.fonction ul { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 12px; }
.fonction li { display: flex; gap: 12px; color: var(--brume); }
.fonction li svg { width: 22px; height: 22px; color: var(--or); flex: none; margin-top: 2px; }
@media (min-width: 860px) {
  .fonction { grid-template-columns: 1fr 1fr; gap: 64px; padding: 44px 0; }
  .fonction:nth-child(even) .fonction-visuel { order: -1; }
}

/* Étapes */
.etapes { counter-reset: etape; display: grid; gap: 16px; }
@media (min-width: 900px) { .etapes { grid-template-columns: repeat(4, 1fr); } }
.etape { padding: 26px 22px; border-radius: var(--rayon); background: var(--surface); border: 1px solid var(--ligne-douce); }
.etape::before {
  counter-increment: etape;
  content: counter(etape);
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--degrade-or);
  color: var(--nuit);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 16px;
}
.etape h3 { font-size: 1.15rem; }
.etape p { color: var(--brume); margin: 0; font-size: 0.98rem; }

/* Tarif */
.tarif { display: grid; gap: 28px; align-items: center; }
@media (min-width: 900px) { .tarif { grid-template-columns: 1fr 1fr; gap: 56px; } }
.carte-prix {
  padding: 32px 28px;
  border-radius: 28px;
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(217, 178, 106, 0.16), transparent 60%),
    linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--ligne);
  box-shadow: var(--ombre);
}
.prix { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 10px; margin: 6px 0 4px; }
.prix strong { font-family: "Playfair Display", Georgia, serif; font-weight: 700; font-size: clamp(2.6rem, 9vw, 3.4rem); color: var(--creme); line-height: 1; }
.prix span { color: var(--brume); font-weight: 500; }
.prix-euro { color: var(--brume); margin-bottom: 22px; }
.inclus { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 10px; }
.inclus li { display: flex; gap: 10px; }
.inclus svg { width: 20px; height: 20px; color: var(--or); flex: none; margin-top: 3px; }

/* Professeur */
.professeur { display: grid; gap: 32px; align-items: center; }
.professeur .medaillon {
  width: min(320px, 78vw);
  margin: 0 auto;
  border-radius: 32px;
  overflow: hidden;
  border: 1px solid var(--ligne);
  box-shadow: var(--ombre);
}
.citation {
  margin: 22px 0 0;
  padding: 18px 22px;
  border-left: 3px solid var(--or);
  background: rgba(217, 178, 106, 0.06);
  border-radius: 0 16px 16px 0;
  color: var(--creme);
}
@media (min-width: 900px) { .professeur { grid-template-columns: 0.8fr 1.2fr; gap: 64px; } }

/* FAQ */
.faq { display: grid; gap: 12px; max-width: 820px; }
.faq details { border-radius: 18px; background: var(--surface); border: 1px solid var(--ligne-douce); }
.faq details[open] { border-color: var(--ligne); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 56px 20px 22px;
  font-weight: 700;
  color: var(--creme);
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--or);
}
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 22px 20px; margin: 0; color: var(--brume); }

/* Contact */
.bandeau-contact {
  display: grid;
  gap: 24px;
  padding: 36px 28px;
  border-radius: 28px;
  background:
    radial-gradient(80% 120% at 0% 0%, rgba(92, 78, 170, 0.35), transparent 60%),
    linear-gradient(135deg, var(--surface-2), var(--nuit-2));
  border: 1px solid var(--ligne);
}
.bandeau-contact p { color: var(--brume); margin: 0; }
@media (min-width: 900px) { .bandeau-contact { grid-template-columns: 1.3fr auto; align-items: center; padding: 48px 52px; } }

/* Pied de page */
.pied { padding: 48px 0 36px; border-top: 1px solid var(--ligne-douce); color: var(--brume); font-size: 0.93rem; }
.pied .conteneur { display: grid; gap: 28px; }
.pied nav { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.pied nav a { color: var(--brume); text-decoration: none; }
.pied nav a:hover { color: var(--creme); }
.pied .marque { margin: 0; }
.pied small { display: block; line-height: 1.6; }
@media (min-width: 900px) { .pied .conteneur { grid-template-columns: 1fr auto; align-items: start; } }

/* ---------- Pages juridiques ---------- */
.document { padding: 48px 0 80px; }
.document .conteneur { max-width: 820px; }
.document h1 { font-size: clamp(2rem, 6vw, 2.8rem); }
.document h2 { font-size: 1.45rem; margin-top: 2.2em; padding-top: 1em; border-top: 1px solid var(--ligne-douce); }
.document h3 { font-size: 1.1rem; margin-top: 1.6em; }
.document p, .document li { color: var(--texte); }
.document ul, .document ol { padding-left: 1.3em; margin: 0 0 1em; }
.document li { margin-bottom: 0.45em; }
.document .maj { color: var(--brume); font-size: 0.95rem; }
.document .encadre { padding: 20px 22px; border-radius: 18px; background: var(--surface); border: 1px solid var(--ligne); margin: 1.4em 0; }
.document .encadre p:last-child { margin-bottom: 0; }
.document table { width: 100%; border-collapse: collapse; margin: 1em 0 1.4em; font-size: 0.97rem; }
.document th, .document td { text-align: left; vertical-align: top; padding: 12px 10px; border-bottom: 1px solid var(--ligne-douce); }
.document th { color: var(--or-clair); font-weight: 700; }
.table-defile { overflow-x: auto; }
.table-defile table { min-width: 560px; }
.retour { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 26px; text-decoration: none; color: var(--brume); font-weight: 500; }
.retour:hover { color: var(--creme); }

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