/* Accueil — Les Carnets d'Hélène
 * Palette alignée sur assets/PALETTE.md.
 * Accessible dyslexie : OpenDyslexic chargée localement, texte >= 16 px,
 * interligne >= 1.5, pas d'italique, focus clavier visible.
 */

@font-face {
  font-family: "OpenDyslexic";
  src: url("assets/fonts/OpenDyslexic/OpenDyslexic-Regular.woff2") format("woff2"),
       url("assets/fonts/OpenDyslexic/OpenDyslexic-Regular.woff") format("woff");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "OpenDyslexic";
  src: url("assets/fonts/OpenDyslexic/OpenDyslexic-Bold.woff2") format("woff2"),
       url("assets/fonts/OpenDyslexic/OpenDyslexic-Bold.woff") format("woff");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --creme: #FDF6E3;
  --velin: #F5E9CF;
  --parchemin: #E8D5A8;
  --sepia: #C9A878;
  --encre: #1A1A1A;
  --charbon: #3B342B;
  --bleu-encre: #1F3247;
  --or-doux: #D4A847;
  /* Or assombri pour le TEXTE : #D4A847 sur crème = contraste 2:1 (illisible).
     #7A5A12 sur crème ≈ 6:1 (WCAG AA). L'or doux reste réservé aux fonds. */
  --or-texte: #7A5A12;
  --focus: #1F6FB2;

  --python: #3D6E9C;
  --c: #6B4A2E;
  --js: #D4A847;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "OpenDyslexic", "Comic Sans MS", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--encre);
  background-color: var(--creme);
  /* Grain de papier très léger : pas de motif qui gêne la lecture. */
  background-image:
    radial-gradient(rgba(201, 168, 120, 0.10) 1px, transparent 1px),
    radial-gradient(rgba(201, 168, 120, 0.07) 1px, transparent 1px);
  background-size: 22px 22px, 37px 37px;
  background-position: 0 0, 11px 17px;
}

img { max-width: 100%; }

/* ---------- Accessibilité clavier ---------- */

.lien-evitement {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 10;
  padding: 12px 20px;
  background: var(--bleu-encre);
  color: var(--creme);
  border-radius: 6px;
  text-decoration: none;
}

.lien-evitement:focus { top: 16px; }

a:focus-visible,
.btn:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 6px;
}

a { color: var(--bleu-encre); text-underline-offset: 3px; }

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

.hero {
  background: linear-gradient(180deg, var(--parchemin) 0%, var(--velin) 100%);
  border-bottom: 3px solid var(--sepia);
  padding: 64px 24px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  /* Étoile dorée ornementale (rappel du carnet Python) */
  content: "✦";
  position: absolute;
  top: 26px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 24px;
  color: var(--or-doux);
  opacity: 0.7;
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.hero-inner > * {
  animation: apparition 0.6s ease-out both;
}
.hero-inner > :nth-child(2) { animation-delay: 0.08s; }
.hero-inner > :nth-child(3) { animation-delay: 0.16s; }
.hero-inner > :nth-child(4) { animation-delay: 0.24s; }
.hero-inner > :nth-child(5) { animation-delay: 0.32s; }

@keyframes apparition {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.hero-sur {
  margin: 0 0 12px;
  color: var(--charbon);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 16px;
}

.hero-titre {
  margin: 0 0 16px;
  color: var(--bleu-encre);
  font-size: 52px;
  line-height: 1.15;
}

.hero-sous {
  margin: 0 0 24px;
  color: var(--charbon);
  font-size: 19px;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.hero-chip {
  background: var(--creme);
  border: 2px solid var(--sepia);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 16px;
  color: var(--charbon);
}

.hero-chip strong {
  color: var(--bleu-encre);
  font-size: 18px;
  margin-right: 4px;
}

.hero-nav {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

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

.btn {
  display: inline-block;
  padding: 12px 22px;
  border: 2px solid var(--bleu-encre);
  border-radius: 6px;
  background: var(--creme);
  color: var(--bleu-encre);
  text-decoration: none;
  font-size: 16px;
  transition: background 0.15s, color 0.15s, transform 0.15s;
}

.btn:hover {
  background: var(--bleu-encre);
  color: var(--creme);
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--or-doux);
  border-color: var(--encre);
  color: var(--encre);
}

.btn--primary:hover {
  background: var(--encre);
  color: var(--or-doux);
}

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

.section {
  padding: 56px 24px;
}

.section--velin {
  background: var(--velin);
  border-top: 3px solid var(--sepia);
  border-bottom: 3px solid var(--sepia);
}

.conteneur {
  max-width: 1100px;
  margin: 0 auto;
}

.section h2 {
  text-align: center;
  color: var(--bleu-encre);
  font-size: 34px;
  line-height: 1.25;
  margin: 0 0 8px;
}

.section-intro {
  text-align: center;
  color: var(--charbon);
  margin: 0 auto 36px;
  max-width: 640px;
}

/* ---------- Règles ---------- */

.regles-grille {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px 24px;
  margin-bottom: 40px;
}

.regle {
  background: var(--velin);
  border: 2px solid var(--sepia);
  border-radius: 12px;
  padding: 56px 24px 24px;
  position: relative;
}

.regle-num {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 44px;
  background: var(--or-doux);
  color: var(--encre);
  border: 2px solid var(--encre);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
}

.regle h3 {
  margin: 0 0 12px;
  color: var(--bleu-encre);
  text-align: center;
  font-size: 20px;
}

.regle p {
  margin: 0;
  color: var(--charbon);
}

.conditions {
  background: var(--velin);
  border: 2px dashed var(--sepia);
  border-radius: 12px;
  padding: 28px;
}

.conditions h3 {
  margin: 0 0 16px;
  color: var(--bleu-encre);
  font-size: 20px;
}

.conditions ul {
  margin: 0;
  padding-left: 24px;
  color: var(--charbon);
}

.conditions li { margin-bottom: 10px; }

/* Tableau des touches */

.conditions h3.touches-titre { margin-top: 24px; }

.touches {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

.touches th,
.touches td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--parchemin);
  vertical-align: top;
}

.touches th { color: var(--bleu-encre); }

/* ---------- Fonctionnalités ---------- */

.features-grille {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.feature {
  background: var(--creme);
  padding: 24px;
  border-radius: 8px;
  border: 2px solid var(--sepia);
  box-shadow: 3px 3px 0 var(--parchemin);
}

.feature h3 {
  color: var(--bleu-encre);
  font-size: 20px;
  margin: 0 0 12px;
}

.feature p {
  color: var(--charbon);
  margin: 0;
}

/* ---------- Langues ---------- */

main:focus { outline: none; }

.langues {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 8px;
}

.langue {
  margin-bottom: 56px;
  border: 2px solid var(--sepia);
  border-radius: 12px;
  padding: 32px;
  background: var(--velin);
  position: relative;
  overflow: hidden;
  scroll-margin-top: 16px;
}

.langue::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
}

.langue[data-couleur="python"]::before { background: var(--python); }
.langue[data-couleur="c"]::before { background: var(--c); }
.langue[data-couleur="js"]::before { background: var(--js); }

.langue-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--sepia);
}

.logo {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--creme);
  flex-shrink: 0;
}

.langue[data-couleur="python"] .logo { background: var(--python); }
.langue[data-couleur="c"] .logo { background: var(--c); }
.langue[data-couleur="js"] .logo { background: var(--js); color: var(--encre); }

.langue-header h2 {
  margin: 0 0 4px;
  font-size: 28px;
  color: var(--bleu-encre);
}

.langue-header p {
  margin: 0;
  color: var(--charbon);
}

/* Bloc Aventure */

.aventure { margin: 24px 0; }

.aventure-titre {
  margin: 0 0 16px;
  color: var(--bleu-encre);
  font-size: 19px;
  border-left: 4px solid var(--or-doux);
  padding-left: 12px;
}

.scenes-grille {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.scene-carte {
  margin: 0;
  background: var(--creme);
  border: 2px solid var(--sepia);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.15s;
}

.scene-carte:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.scene-carte img {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  background: var(--parchemin);
}

.scene-carte figcaption {
  padding: 16px;
  text-align: left;
}

.scene-carte figcaption strong {
  display: block;
  color: var(--bleu-encre);
  margin-bottom: 4px;
}

.scene-carte figcaption span {
  color: var(--charbon);
  font-size: 16px;
}

/* Saisons — repliables pour ne pas étouffer la page */

.saisons-details {
  margin-top: 24px;
}

.saisons-details > summary {
  cursor: pointer;
  display: inline-block;
  padding: 10px 18px;
  border: 2px solid var(--bleu-encre);
  border-radius: 6px;
  background: var(--creme);
  color: var(--bleu-encre);
  list-style: none;
}

.saisons-details > summary::-webkit-details-marker { display: none; }
.saisons-details > summary::before { content: "▸ "; }
.saisons-details[open] > summary::before { content: "▾ "; }

.saisons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.saison {
  background: var(--creme);
  border: 1px solid var(--sepia);
  border-radius: 8px;
  padding: 20px;
}

.saison h3 {
  margin: 0 0 12px;
  color: var(--bleu-encre);
  font-size: 18px;
  border-bottom: 1px solid var(--parchemin);
  padding-bottom: 8px;
}

.saison ol {
  margin: 0;
  padding-left: 22px;
}

.saison li {
  margin-bottom: 6px;
  font-size: 16px;
  line-height: 1.7;
}

.xp {
  float: right;
  margin-left: 8px;
  color: var(--or-texte);
  font-weight: 700;
  font-size: 16px;
}

.cta {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--sepia);
  text-align: center;
  color: var(--charbon);
}

code, kbd {
  background: var(--parchemin);
  padding: 2px 7px;
  border-radius: 4px;
  font-family: "Consolas", "Monaco", monospace;
  font-size: 0.92em;
  color: var(--encre);
}

kbd { border: 1px solid var(--sepia); border-bottom-width: 2px; }

/* ---------- Téléchargement ---------- */

.downloads-grille {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.download-carte {
  background: var(--velin);
  padding: 28px;
  border-radius: 8px;
  border: 2px solid var(--or-doux);
  box-shadow: 3px 3px 0 var(--sepia);
}

.download-carte h3 {
  color: var(--bleu-encre);
  font-size: 22px;
  margin: 0 0 12px;
}

.download-carte p {
  color: var(--charbon);
  margin: 0 0 12px;
}

.download-carte ul {
  margin: 0 0 12px;
  padding-left: 22px;
  color: var(--charbon);
}

.download-carte code.bloc {
  display: block;
  padding: 10px 14px;
  margin: 12px 0;
  overflow-wrap: anywhere;
}

.statut {
  display: inline-block;
  margin-bottom: 12px;
  padding: 2px 12px;
  border-radius: 999px;
  border: 2px solid var(--sepia);
  background: var(--creme);
  color: var(--charbon);
  font-size: 16px;
}

.note {
  max-width: 820px;
  margin: 28px auto 0;
  padding: 16px 20px;
  border-left: 4px solid var(--or-doux);
  background: var(--velin);
  color: var(--charbon);
}

/* ---------- Pied de page ---------- */

.pied {
  background: var(--parchemin);
  border-top: 2px solid var(--sepia);
  padding: 40px 24px;
  text-align: center;
  color: var(--charbon);
}

.pied p { margin: 0 0 10px; }

.pied-liens {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- Pages de texte (mentions légales) ---------- */

.page-texte {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.page-texte h1 {
  color: var(--bleu-encre);
  font-size: 38px;
  line-height: 1.2;
  margin: 0 0 8px;
}

.page-texte h2 {
  color: var(--bleu-encre);
  font-size: 24px;
  margin: 40px 0 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--parchemin);
}

.page-texte h3 {
  color: var(--bleu-encre);
  font-size: 19px;
  margin: 20px 0 8px;
}

.page-texte p,
.page-texte li { color: var(--charbon); }

.a-completer {
  background: #FFF1C2;
  border: 2px dashed var(--or-texte);
  padding: 2px 8px;
  border-radius: 4px;
}

.retour {
  display: inline-block;
  margin-bottom: 24px;
}

/* ---------- Responsive & préférences ---------- */

@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero { padding: 56px 16px 40px; }
  .hero-titre { font-size: 34px; }
  .hero-sous { font-size: 17px; }
  .section { padding: 44px 16px; }
  .section h2 { font-size: 27px; }
  .langues { padding: 40px 16px 8px; }
  .langue { padding: 20px 16px; }
  .langue-header { flex-direction: column; text-align: center; gap: 12px; }
  .conditions, .download-carte { padding: 20px 16px; }
  .xp { float: none; display: block; margin-left: 0; }
  .page-texte { padding: 32px 16px 48px; }
  .page-texte h1 { font-size: 30px; }
}

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