/* ==========================================================================
   1. TOKENS — palette épurée, esprit zen japonais (encre, papier washi, mousse,
   sceau vermillon)
   ========================================================================== */
:root {
  /* Encre (texte, fonds sombres) */
  --color-ink-900: #221F1C;
  --color-ink-700: #4A453E;

  /* Papier (fonds clairs) */
  --color-paper-50: #F7F3EA;
  --color-paper-100: #EFE7D6;

  /* Mousse / matcha (couleur principale) */
  --color-sage-500: #6B7A5E;
  --color-sage-600: #4F5C45;
  --color-sage-700: #3D4736;

  /* Vermillon (sceau, accent rare) */
  --color-vermillion-500: #B33B1E;
  --color-vermillion-600: #8F2F17;

  --color-line: rgba(34, 31, 28, 0.14);
  --color-white: #FFFFFF;

  /* Rôles sémantiques */
  --color-text: var(--color-ink-900);
  --color-text-muted: var(--color-ink-700);
  --color-text-on-primary: var(--color-white);
  --color-text-on-accent: var(--color-white);
  --color-bg: var(--color-paper-50);
  --color-bg-alt: var(--color-paper-100);
  --color-border: var(--color-line);

  /* Typographie — polices système, pas de requête externe */
  --font-heading: 'Hiragino Mincho ProN', 'Yu Mincho', Georgia, 'Iowan Old Style', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', 'Segoe UI', Roboto, sans-serif;

  /* Grille d'espacement (4px) — généreuse pour laisser respirer */
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 20px;
  --space-lg: 32px;
  --space-xl: 56px;
  --space-2xl: 100px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-pill: 999px;

  --max-width: 1080px;
}

/* ==========================================================================
   2. BASE
   ========================================================================== */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--color-sage-700);
  line-height: 1.3;
  letter-spacing: 0.01em;
  margin: 0 0 var(--space-sm);
}

h1 { font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 400; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 400; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 var(--space-md); }

a { color: var(--color-sage-600); }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section { padding: var(--space-2xl) 0; }
.section--alt { background: var(--color-bg-alt); }
.section--center { text-align: center; }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-vermillion-500);
  margin-bottom: var(--space-sm);
}

/* Petit ornement : trait fin + cercle, esprit enso */
.ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin: 0 auto var(--space-lg);
  width: 100%;
  max-width: 200px;
}
.ornament::before,
.ornament::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-line);
}
.ornament__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1px solid var(--color-vermillion-500);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink-900);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  z-index: 100;
}
.skip-link:focus { left: var(--space-md); top: var(--space-md); }

:focus-visible {
  outline: 2px solid var(--color-vermillion-500);
  outline-offset: 3px;
}

/* ==========================================================================
   3. COMPOSANTS
   ========================================================================== */

/* --- Boutons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 13px 30px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.98rem;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn--primary {
  background: var(--color-sage-600);
  color: var(--color-text-on-primary);
}
.btn--primary:hover { background: var(--color-sage-700); }

.btn--accent {
  background: var(--color-vermillion-500);
  color: var(--color-text-on-accent);
}
.btn--accent:hover { background: var(--color-vermillion-600); }

.btn--ghost {
  background: transparent;
  border-color: var(--color-ink-900);
  color: var(--color-ink-900);
}
.btn--ghost:hover { background: var(--color-ink-900); color: var(--color-white); }

/* --- Header / navigation --- */
.site-header {
  background: var(--color-paper-50);
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-ink-900);
  text-decoration: none;
  line-height: 1.1;
}
.hanko {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  background: var(--color-vermillion-500);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  border-radius: var(--radius-sm);
}
.logo__text { display: block; }
.logo__sub {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-sage-600);
  font-family: var(--font-body);
}

.nav-desktop { display: flex; gap: var(--space-lg); list-style: none; margin: 0; padding: 0; }
.nav-desktop a {
  color: var(--color-ink-900);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
.nav-desktop a[aria-current="page"] { color: var(--color-vermillion-500); border-bottom-color: var(--color-vermillion-500); }
.nav-desktop a:hover { color: var(--color-vermillion-500); }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-xs);
  cursor: pointer;
}
.mobile-toggle__icon,
.mobile-toggle__icon::before,
.mobile-toggle__icon::after {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-ink-900);
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.mobile-toggle__icon::before,
.mobile-toggle__icon::after { content: ""; position: absolute; }
.mobile-toggle__icon::before { top: -7px; }
.mobile-toggle__icon::after { top: 7px; }

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: var(--space-md);
  background: var(--color-paper-50);
  border-top: 1px solid var(--color-line);
}
.nav-mobile a { color: var(--color-ink-900); text-decoration: none; font-size: 1.05rem; }

@media (max-width: 860px) {
  .nav-desktop { display: none; }
  .mobile-toggle { display: block; }
  .nav-mobile.is-open { display: flex; }
}

/* --- Hero --- */
.hero {
  background: var(--color-paper-50);
  color: var(--color-ink-900);
  text-align: center;
  padding: var(--space-2xl) 0 var(--space-xl);
}
.hero h1 { color: var(--color-sage-700); }
.hero__lead { font-size: 1.1rem; max-width: 560px; margin: 0 auto var(--space-lg); color: var(--color-ink-700); }
.hero__actions { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; margin-bottom: var(--space-xl); }
.hero__art { width: 100%; max-width: 220px; margin: 0 auto; color: var(--color-sage-500); opacity: 0.9; }
.hero__photo {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.hero__photo img { width: 100%; height: auto; display: block; }

/* --- Composition asymétrique japonisante (portrait détouré + kanji filigrane) --- */
.zen-feature {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
  gap: var(--space-2xl);
}
.zen-feature--reverse { grid-template-columns: 1.1fr 1fr; }
.zen-feature--reverse .zen-feature__text { order: 2; }
.zen-feature--reverse .zen-feature__media { order: 1; }
.zen-feature__text { position: relative; z-index: 2; }
.zen-feature__kanji {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 18rem;
  line-height: 1;
  color: var(--color-sage-500);
  opacity: 0.16;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}
.zen-feature--reverse .zen-feature__kanji,
.zen-feature__kanji--right { left: auto; right: 0; }
.zen-feature__media { position: relative; z-index: 1; }
.zen-feature__media img {
  width: 85%;
  height: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 26px 30px rgba(34, 31, 28, 0.16));
}
.zen-feature__vertical {
  writing-mode: vertical-rl;
  font-size: 0.75rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-vermillion-500);
  position: absolute;
  top: var(--space-md);
  left: var(--space-sm);
}
.zen-feature--reverse .zen-feature__vertical { left: auto; right: var(--space-sm); }
@media (max-width: 860px) {
  .zen-feature,
  .zen-feature--reverse { grid-template-columns: 1fr; gap: var(--space-lg); }
  .zen-feature--reverse .zen-feature__text,
  .zen-feature--reverse .zen-feature__media { order: initial; }
  .zen-feature__media { order: -1; }
  .zen-feature__kanji { font-size: 8rem; }
  .zen-feature--reverse .zen-feature__kanji,
  .zen-feature__kanji--right { right: auto; left: 0; }
  .zen-feature__vertical { display: none; }
}

/* --- Section deux colonnes --- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.split__media {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-paper-100);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}
.split__media svg { width: 55%; color: var(--color-sage-600); }
.split__media--photo {
  padding: 0;
  aspect-ratio: 3 / 4;
  overflow: hidden;
}
.split__media--photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; gap: var(--space-lg); }
  .split__media { order: -1; min-height: 220px; }
}

/* --- Cartes thèmes ateliers --- */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}
.theme-card {
  background: var(--color-bg);
  padding: var(--space-lg) var(--space-md);
}
.section--alt .theme-card { background: var(--color-bg-alt); }
.theme-card h3 {
  margin-bottom: var(--space-xs);
  color: var(--color-sage-700);
  padding-left: var(--space-sm);
  border-left: 2px solid var(--color-vermillion-500);
}
.theme-card p { margin: 0; color: var(--color-text-muted); font-size: 0.95rem; padding-left: var(--space-sm); }

/* --- Bandeau citation / à propos --- */
.quote-block {
  border-left: 2px solid var(--color-vermillion-500);
  padding-left: var(--space-md);
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--color-sage-700);
  margin: var(--space-lg) 0;
}

/* --- Bandeau CTA --- */
.cta-banner {
  background: var(--color-ink-900);
  color: var(--color-paper-50);
  text-align: center;
  padding: var(--space-xl) 0;
  border-top: 2px solid var(--color-vermillion-500);
}
.cta-banner h2 { color: var(--color-paper-50); }
.cta-banner p { color: var(--color-paper-100); }
.cta-banner .btn--ghost { border-color: var(--color-paper-50); color: var(--color-paper-50); }
.cta-banner .btn--ghost:hover { background: var(--color-paper-50); color: var(--color-ink-900); }

/* --- Formulaire --- */
.form-field { margin-bottom: var(--space-md); }
.form-field label { display: block; font-weight: 600; margin-bottom: var(--space-xs); font-size: 0.92rem; }
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-white);
}
.form-field input:focus,
.form-field textarea:focus { border-color: var(--color-sage-600); }
.form-field textarea { min-height: 140px; resize: vertical; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
.contact-info a { color: var(--color-sage-700); font-weight: 600; text-decoration: none; }
.contact-info a:hover { text-decoration: underline; }

/* --- Footer --- */
.site-footer {
  background: var(--color-ink-900);
  color: var(--color-paper-100);
  padding: var(--space-xl) 0 var(--space-lg);
}
.site-footer a { color: var(--color-white); text-decoration: none; }
.site-footer a:hover { color: var(--color-vermillion-500); }
.site-footer .logo { color: var(--color-paper-50); }
.site-footer .logo__sub { color: var(--color-paper-100); opacity: 0.75; }
.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}
.site-footer__bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-ink-700);
  font-size: 0.82rem;
  text-align: center;
  color: var(--color-paper-100);
  opacity: 0.7;
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; }
}