/* ============================================================
   BASE CSS — Ma Toile à Rêve
   Typographie éditoriale, helpers de mise en page sobres.
   ============================================================ */

/* ========== BODY ========== */
html {
  /* Sélection de texte — bleu Egyptian / papier doré */
  --selection-bg: var(--color-primary);
  --selection-fg: var(--color-bg-pure);
}
::selection {
  background: var(--selection-bg);
  color: var(--selection-fg);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-light);    /* corps en 300 = lecture papier */
  line-height: var(--lh-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: var(--pattern-grain);
  background-size: 3px 3px, 5px 5px;
  background-position: 0 0, 1.5px 1.5px;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== HIÉRARCHIE TITRES ==========
   Ephesis  → moments d'émotion (rare, GRAND, seul)
   Playfair → titres éditoriaux H2/H3
   Jost     → corps + H4/H5/H6 + eyebrows
   ============================================================ */
h1, .h1 {
  font-family: var(--font-premium);
  font-size: var(--fs-hero);
  font-weight: var(--fw-regular);
  line-height: var(--lh-tight);
  color: var(--color-primary);
  letter-spacing: var(--ls-tightest);
}

h2, .h2 {
  font-family: var(--font-premium);
  font-size: clamp(2rem, 3.5vw + 1rem, 3.25rem);
  font-weight: var(--fw-regular);
  line-height: 1.1;
  color: var(--color-primary);
  letter-spacing: var(--ls-tight);
}

h3, .h3 {
  font-family: var(--font-premium);
  font-size: clamp(1.5rem, 1.5vw + 1rem, 2rem);
  font-weight: var(--fw-regular);
  line-height: var(--lh-snug);
  color: var(--color-primary);
  letter-spacing: var(--ls-tight);
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
  line-height: var(--lh-snug);
  color: var(--color-text);
  letter-spacing: var(--ls-tight);
}

h5, .h5 {
  font-family: var(--font-body);
  font-size: var(--fs-md);
  font-weight: var(--fw-medium);
  color: var(--color-text);
}

h6, .h6 {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-widest);
  color: var(--color-text-soft);
}

/* Italiques manuscrits dans les titres — utilisés très ponctuellement */
h1 em, h2 em, h3 em,
.h1 em, .h2 em, .h3 em {
  font-family: var(--font-emotion);
  font-style: normal;
  font-weight: var(--fw-regular);
  color: var(--color-accent-dark);
  /* Ephesis a une caisse haute — léger ajustement de baseline */
  font-size: 1.18em;
  line-height: 0.85;
  letter-spacing: 0;
  display: inline-block;
  transform: translateY(0.06em);
}

/* ========== ACCROCHES ÉMOTIONNELLES ========== */
.accroche-emotion {
  font-family: var(--font-emotion);
  font-size: var(--fs-emotion);
  color: var(--color-accent-dark);
  line-height: var(--lh-tight);
  font-weight: var(--fw-regular);
  letter-spacing: 0;
}

.signature {
  font-family: var(--font-emotion);
  font-size: var(--fs-2xl);
  color: var(--color-primary);
  font-weight: var(--fw-regular);
  line-height: 1;
}

/* ========== EYEBROW — chapeau de section type "Table des matières" ========== */
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-widest);
  color: var(--color-text-soft);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--color-accent);
  display: inline-block;
}
.eyebrow-no-rule::before { display: none; }
.eyebrow-emotion { color: var(--color-emotion); }
.eyebrow-emotion::before { background: var(--color-emotion); }
.eyebrow-accent  { color: var(--color-accent-dark); }
.eyebrow-light   { color: rgba(242, 239, 231, 0.78); }
.eyebrow-light::before { background: var(--color-accent-light); }

/* Chiffres ornementaux (filigrane) — utilisés en filigrane derrière sections */
.ornament-numeral {
  font-family: var(--font-premium);
  font-style: italic;
  font-weight: var(--fw-regular);
  font-size: var(--fs-display);
  line-height: 0.8;
  color: var(--color-accent);
  opacity: 0.18;
  user-select: none;
  pointer-events: none;
}

/* ========== PARAGRAPHES & TEXTE ========== */
p {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-light);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
}

p + p { margin-top: var(--space-sm); }

.lead {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--color-text-soft);
  font-weight: var(--fw-light);
  max-width: 56ch;
}

.text-muted   { color: var(--color-text-muted); }
.text-soft    { color: var(--color-text-soft); }
.text-primary { color: var(--color-primary); }
.text-accent  { color: var(--color-accent-dark); }
.text-emotion { color: var(--color-emotion); }
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }

/* ========== LIENS ========== */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--t-fast) var(--easing);
}
a:hover { color: var(--color-accent-dark); }

a.link-underline {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-color: var(--color-accent);
  transition: text-decoration-color var(--t-base) var(--easing),
              color var(--t-fast) var(--easing);
}
a.link-underline:hover {
  text-decoration-color: var(--color-emotion);
}

/* ========== LAYOUT — CONTAINERS ========== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--section-px);
}
.container-narrow {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--section-px);
}
.container-prose {
  max-width: var(--container-prose);
  margin-inline: auto;
  padding-inline: var(--section-px);
}
.container-wide {
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--section-px);
}

/* ========== SECTIONS ========== */
.section {
  padding-block: var(--section-py);
  position: relative;
}
.section-soft { background: var(--color-bg-soft); }
.section-pure { background: var(--color-bg-pure); }
.section-deep { background: var(--color-bg-deep); }

.section-primary {
  background: var(--gradient-ink);
  color: var(--color-text-on-dark);
}
.section-primary h1,
.section-primary h2,
.section-primary h3 { color: var(--color-text-on-dark); }
.section-primary .lead { color: rgba(242, 239, 231, 0.82); }

/* Filets décoratifs entre sections (utilisable manuellement) */
.section + .section.section-pure,
.section + .section.section-soft,
.section + .section.section-deep {
  position: relative;
}

/* ========== UTILITAIRES FLEX & GRID ========== */
.flex      { display: flex; }
.flex-col  { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.items-end    { align-items: flex-end; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end     { justify-content: flex-end; }

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ========== ESPACEMENTS UTILITAIRES ========== */
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ========== ACCESSIBILITÉ ========== */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Focus rings sobres : un trait or net, pas de glow flou */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* ========== ANIMATIONS REVEAL ========== */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--t-stretch) var(--easing-elegant),
              transform var(--t-stretch) var(--easing-elegant);
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Variante : reveal léger latéral (pour titres en colonne droite) */
.fade-in-left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity var(--t-stretch) var(--easing-elegant),
              transform var(--t-stretch) var(--easing-elegant);
}
.fade-in-left.is-visible { opacity: 1; transform: translateX(0); }

@media (prefers-reduced-motion: reduce) {
  .fade-in, .fade-in-left {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ========== DIVIDERS & FILETS ========== */
.divider-art {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-block: var(--space-lg);
  color: var(--color-accent-dark);
  font-family: var(--font-premium);
  font-style: italic;
  font-size: var(--fs-md);
}
.divider-art::before,
.divider-art::after {
  content: "";
  flex: 1;
  height: 1px;
  max-width: 80px;
  background: var(--color-accent);
  opacity: 0.5;
}

/* Filet horizontal éditorial — un trait, sobre */
.rule {
  border: 0;
  height: 1px;
  background: var(--color-border-ink);
  margin-block: var(--space-md);
}
.rule-gold {
  background: var(--color-accent);
  opacity: 0.6;
}

/* Tech-line : neutralisé visuellement pour ne plus polluer */
.tech-line {
  height: 1px;
  background: var(--color-border-ink);
  border: 0;
  margin-block: var(--space-md);
  opacity: 0.4;
}
.tech-line-primary { background: var(--color-primary-light); opacity: 0.3; }

/* Vague séparateur (rétro-compat) — neutralisée */
.section-wave-divider { display: none; }

/* Patterns tech (rétro-compat — neutralisés) */
.bg-tech-dots,
.bg-tech-dots-bright,
.bg-tech-grid {
  position: relative;
  background-image: var(--pattern-grain);
  background-size: 5px 5px, 7px 7px;
}
.bg-glow-accent { background: var(--gradient-radial-glow); }

/* Glows désactivés — réf. rétro-compat */
.glow-accent,
.glow-primary { box-shadow: none; }

/* ========== TAMPON / CACHET (badge circulaire éditorial) ========== */
.stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: var(--ls-widest);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  text-align: center;
  line-height: 1.1;
  padding: 0.5rem;
  position: relative;
  background: transparent;
  flex-shrink: 0;
}
.stamp::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 0.5px solid var(--color-accent);
  opacity: 0.5;
}