/* ==========================================================================
   Les Quatre Accords Olmèques — feuille de style
   Palette : pierre calcaire, jade, argile brûlée, obsidienne, or ancien
   ========================================================================== */

:root {
  --pierre: #f1e9d8;
  --pierre-dark: #e5d9bf;
  --obsidienne: #1c1710;
  --obsidienne-clair: #2a2318;
  --jade: #2f6e52;
  --jade-clair: #3f8c69;
  --jade-fonce: #1e4a37;
  --argile: #a6472b;
  --argile-clair: #c65a3a;
  --or: #b98a3d;
  --encre: #241e15;
  --encre-douce: #55503f;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Work Sans", "Segoe UI", sans-serif;

  --container: 1120px;
  --radius: 6px;
  --transition: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--pierre);
  color: var(--encre);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.wrap {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 0.6em;
  color: inherit;
}

p {
  margin: 0 0 1.1em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--jade);
  margin-bottom: 1rem;
}

.eyebrow svg {
  width: 18px;
  height: 18px;
  flex: none;
}

/* ---------- Skip link (accessibilité) ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--or);
  color: var(--obsidienne);
  padding: 0.75rem 1.25rem;
  z-index: 200;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* ---------- En-tête ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(28, 23, 16, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(185, 138, 61, 0.25);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--pierre);
}

.brand svg {
  width: 34px;
  height: 34px;
  flex: none;
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.15;
}

.brand-text span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--or);
  margin-top: 2px;
}

.main-nav {
  display: flex;
  gap: 1.75rem;
}

.main-nav a {
  color: var(--pierre-dark);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.4rem 0;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--or);
  border-color: var(--or);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(241, 233, 216, 0.35);
  border-radius: var(--radius);
  color: var(--pierre);
  padding: 0.5rem 0.7rem;
  cursor: pointer;
}

/* ---------- Motif décoratif de glyphes ---------- */
.glyph-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  margin: 3.25rem 0;
  opacity: 0.85;
}

.glyph-row svg {
  width: 30px;
  height: 30px;
}

.glyph-row .line {
  height: 1px;
  width: 64px;
  background: linear-gradient(90deg, transparent, var(--or), transparent);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--obsidienne);
  color: var(--pierre);
  overflow: hidden;
  padding: 4.5rem 0 5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'%3E%3Cg fill='none' stroke='%232f6e52' stroke-width='1' opacity='0.35'%3E%3Crect x='20' y='20' width='40' height='40'/%3E%3Ccircle cx='40' cy='40' r='11'/%3E%3Cpath d='M140 30 L170 30 L170 60 L155 75 L140 60 Z'/%3E%3Cpath d='M30 140 q20 -18 40 0 t40 0' /%3E%3Ccircle cx='170' cy='160' r='22'/%3E%3Ccircle cx='170' cy='160' r='9'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 220px;
  opacity: 0.5;
}

.hero .wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.35rem);
  color: var(--pierre);
}

.hero h1 em {
  font-style: normal;
  color: var(--or);
}

.hero-lede {
  font-size: 1.12rem;
  color: var(--pierre-dark);
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--or);
  color: var(--obsidienne);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: #cd9d4f;
}

.btn-outline {
  border-color: rgba(241, 233, 216, 0.4);
  color: var(--pierre);
}
.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--or);
  color: var(--or);
}

.btn-jade {
  background: var(--jade);
  color: var(--pierre);
}
.btn-jade:hover,
.btn-jade:focus-visible {
  background: var(--jade-clair);
}

.hero-media {
  position: relative;
}

.media-frame {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(185, 138, 61, 0.4);
  box-shadow: 0 30px 60px -25px rgba(0, 0, 0, 0.6);
}

.media-frame img {
  width: 100%;
  height: auto;
}

.media-caption {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--pierre-dark);
}

.media-caption svg {
  width: 18px;
  height: 18px;
  color: var(--jade-clair);
  flex: none;
}

/* ---------- Lecteur audio (vidéo) ---------- */
.listen-card {
  background: var(--obsidienne-clair);
  border: 1px solid rgba(185, 138, 61, 0.3);
  border-radius: 10px;
  padding: 1.5rem;
  margin-top: 1.75rem;
}

.listen-card h2 {
  font-size: 1.1rem;
  color: var(--pierre);
  margin-bottom: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.listen-card h2 svg {
  width: 22px;
  height: 22px;
  color: var(--or);
}

.video-frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 6px;
  overflow: hidden;
  background: #000;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Sections génériques ---------- */
section {
  padding: 5rem 0;
}

.section-light {
  background: var(--pierre);
}

.section-dark {
  background: var(--obsidienne);
  color: var(--pierre);
}

.section-head {
  max-width: 62ch;
  margin: 0 auto 3rem;
  text-align: center;
}

.section-dark .section-head .eyebrow {
  color: var(--or);
}

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.section-dark .section-head h2 {
  color: var(--pierre);
}

.lede-text {
  color: var(--encre-douce);
}

.section-dark .lede-text {
  color: var(--pierre-dark);
}

/* ---------- Intro / présentation ---------- */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.intro-text p {
  color: var(--encre-douce);
  font-size: 1.03rem;
}

.pull-quote {
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.4;
  color: var(--jade-fonce);
  border-left: 3px solid var(--or);
  padding-left: 1.25rem;
  margin: 1.75rem 0;
}

.stone-card {
  background: var(--pierre-dark);
  border: 1px solid rgba(36, 30, 21, 0.08);
  border-radius: 10px;
  padding: 2.25rem;
}

.stone-card h3 {
  font-size: 1.2rem;
  color: var(--jade-fonce);
}

.accord-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.accord-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  font-size: 0.98rem;
  color: var(--encre-douce);
}

.accord-list svg {
  width: 20px;
  height: 20px;
  flex: none;
  margin-top: 3px;
  color: var(--argile);
}

/* ---------- Formats de téléchargement ---------- */
.formats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.format-card {
  background: var(--obsidienne-clair);
  border: 1px solid rgba(185, 138, 61, 0.28);
  border-radius: 10px;
  padding: 2.25rem 1.85rem;
  text-align: left;
  transition: border-color var(--transition), transform var(--transition);
}

.format-card:hover {
  border-color: var(--or);
  transform: translateY(-4px);
}

.format-icon {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: rgba(185, 138, 61, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.format-icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.format-card h3 {
  font-size: 1.15rem;
  color: var(--pierre);
  margin-bottom: 0.5rem;
}

.format-card p {
  color: var(--pierre-dark);
  font-size: 0.92rem;
  margin-bottom: 1.4rem;
}

.format-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--or);
  text-decoration: none;
}

.format-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.format-link:hover svg,
.format-link:focus-visible svg {
  transform: translateX(3px);
}

/* ---------- Autres livres de l'auteur ---------- */
.livres-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
}

.livre-card {
  display: flex;
  flex-direction: column;
  background: var(--pierre-dark);
  border: 1px solid rgba(36, 30, 21, 0.08);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  text-decoration: none;
  transition: border-color var(--transition), transform var(--transition);
}

.livre-card:hover {
  border-color: var(--or);
  transform: translateY(-4px);
}

.livre-card img {
  margin: 0 auto 0.9rem;
  width: 100%;
  max-width: 120px;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(36, 30, 21, 0.18);
}

.livre-card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--jade-fonce);
  line-height: 1.3;
  margin-bottom: 0.4rem;
}

.livre-card-cat {
  font-size: 0.78rem;
  color: var(--encre-douce);
  font-style: italic;
}

/* ---------- Auteur ---------- */
.author-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 3rem;
  align-items: center;
}

.author-photo {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(36, 30, 21, 0.1);
}

.author-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--jade-fonce);
  margin-bottom: 0.3rem;
}

.author-role {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--argile);
  margin-bottom: 1.25rem;
  display: block;
}

/* ---------- Soutien / don ---------- */
.support-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2.5rem;
  background: var(--jade-fonce);
  color: var(--pierre);
  border-radius: 12px;
  padding: 2.75rem;
}

.support-card h2 {
  color: var(--pierre);
  font-size: 1.6rem;
}

.support-card p {
  color: rgba(241, 233, 216, 0.85);
  max-width: 50ch;
}

.support-card img {
  width: 150px;
  border-radius: 8px;
}

.share-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

.share-row .btn svg {
  width: 18px;
  height: 18px;
}

/* ---------- Pied de page ---------- */
.site-footer {
  background: var(--obsidienne);
  color: var(--pierre-dark);
  padding: 3rem 0 2rem;
  border-top: 1px solid rgba(185, 138, 61, 0.2);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--pierre);
  font-family: var(--font-display);
  font-size: 1rem;
}

.footer-brand svg {
  width: 26px;
  height: 26px;
}

.footer-links {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--pierre-dark);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--or);
}

.footer-note {
  margin-top: 2.25rem;
  font-size: 0.8rem;
  color: rgba(241, 233, 216, 0.45);
  border-top: 1px solid rgba(241, 233, 216, 0.1);
  padding-top: 1.5rem;
}

/* ---------- Accessibilité focus ---------- */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--or);
  outline-offset: 2px;
}

/* ---------- Réduction de mouvement ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .btn,
  .format-card,
  .format-link svg {
    transition: none;
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 991px) {
  .hero .wrap {
    grid-template-columns: 1fr;
  }
  .hero-media {
    order: -1;
  }
  .intro-grid {
    grid-template-columns: 1fr;
  }
  .author-grid {
    grid-template-columns: 1fr;
  }
  .author-photo {
    max-width: 360px;
  }
  .formats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
  .livres-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .support-card {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .support-card img {
    width: 130px;
  }
}

@media (max-width: 767px) {
  section {
    padding: 3.5rem 0;
  }
  .main-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    background: var(--obsidienne);
    flex-direction: column;
    padding: 1.25rem 1.5rem 1.75rem;
    gap: 0.25rem;
    border-bottom: 1px solid rgba(185, 138, 61, 0.25);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }
  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a {
    padding: 0.7rem 0;
    border-bottom: 1px solid rgba(241, 233, 216, 0.08);
  }
  .nav-toggle {
    display: inline-flex;
  }
  .formats-grid {
    grid-template-columns: 1fr;
  }
  .livres-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
  .glyph-row {
    gap: 1rem;
    margin: 2.25rem 0;
  }
  .glyph-row .line {
    width: 32px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 3.25rem 0 3.5rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    justify-content: center;
  }
  .support-card {
    padding: 2rem 1.5rem;
  }
  .livres-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}