/* =============================================================================
   DOUZEROCINQ CONSEILS — Feuille de style charte v1.3
   Conforme CHARTE_KIT_OPERATIONNEL.md — alignée 2026-04-22
   ============================================================================= */

/* --- 1. TOKENS CHARTE v1.3 ------------------------------------------------ */
:root {
  /* Palette */
  --ink-deep: #0A1628;        /* Encre Sorbonne */
  --paper-cream: #F2EDE0;     /* Crème Vélin */
  --gold: #B89968;            /* Or Antique */
  --gold-dark: #9A7D52;       /* Or Antique — hover */
  --bordeaux: #4A1820;        /* Bordeaux Magistrat */
  --graphite: #3C4654;        /* Graphite */
  --silver: #C5C0B5;          /* Brume d'Argent */
  --silver-light: #E8E4DC;

  /* Typographies */
  --font-display: "Playfair Display", "Source Serif 4", Georgia, serif;
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  /* Spacing scale (base 8px) */
  --s-1: 0.25rem; --s-2: 0.5rem; --s-3: 0.75rem; --s-4: 1rem;
  --s-5: 1.5rem; --s-6: 2rem; --s-7: 3rem; --s-8: 4rem;
  --s-9: 6rem; --s-10: 8rem;

  /* Grille */
  --max-width: 72rem;         /* 1152px */
  --max-width-narrow: 44rem;  /* 704px — lectures longues */

  /* Transitions */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --t-fast: 180ms;
  --t-base: 320ms;
  --t-slow: 600ms;

  /* Rayons — registre institutionnel sobre, pas d'arrondis marqués */
  --r-0: 0; --r-1: 2px; --r-2: 4px;

  /* Shadows — très sobre */
  --shadow-1: 0 1px 2px rgba(10, 22, 40, 0.06);
  --shadow-2: 0 2px 6px rgba(10, 22, 40, 0.08);
  --shadow-3: 0 8px 24px rgba(10, 22, 40, 0.12);
}

/* --- 2. RESET ET NORMALISATION ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.65;
  color: var(--ink-deep);
  background-color: var(--paper-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button { cursor: pointer; border: 0; background: transparent; }

a { color: var(--ink-deep); text-decoration-color: var(--gold); text-underline-offset: 0.2em; text-decoration-thickness: 1px; transition: color var(--t-fast) var(--ease); }
a:hover { color: var(--gold-dark); }
a:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

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

/* --- 3. TYPOGRAPHIE ------------------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink-deep);
  margin: 0 0 0.5em 0;
  letter-spacing: -0.01em;
}

.hero-title, .display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.25rem, 1.5rem + 3.5vw, 4.25rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.875rem, 1.25rem + 2vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 1rem + 1.5vw, 2rem); margin-top: var(--s-7); }
h3 { font-size: 1.25rem; margin-top: var(--s-6); }
h4 { font-size: 1.0625rem; font-weight: 600; margin-top: var(--s-5); }

p { margin: 0 0 var(--s-4) 0; max-width: 68ch; }

.lead { font-family: var(--font-serif); font-size: 1.25rem; line-height: 1.55; color: var(--graphite); }

.meta, .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  font-weight: 500;
}

.num, .ref-doc {
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
}

blockquote {
  margin: var(--s-6) 0;
  padding-left: var(--s-5);
  border-left: 2px solid var(--gold);
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--graphite);
}

hr.sep { border: 0; border-top: 1px solid var(--silver); margin: var(--s-7) 0; }
hr.sep-gold { border: 0; border-top: 1px solid var(--gold); width: 4rem; margin: var(--s-5) 0; }

ul, ol { padding-left: 1.5rem; margin: 0 0 var(--s-4) 0; }
ul li, ol li { margin-bottom: var(--s-2); }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--silver-light);
  padding: 0.1em 0.35em;
  border-radius: var(--r-1);
}

/* --- 4. LAYOUT UTILITAIRES ---------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--s-5);
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--s-5);
}

section { padding: var(--s-9) 0; }
section.compact { padding: var(--s-7) 0; }

.stack > * + * { margin-top: var(--s-5); }
.stack-lg > * + * { margin-top: var(--s-7); }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); gap: var(--s-6); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: var(--s-5); }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: var(--s-5); }

/* --- 5. HEADER + NAVIGATION --------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(242, 237, 224, 0.96);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--silver);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  height: 5.25rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--s-5);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
}
.wordmark-logo {
  display: block;
  height: 3.25rem;   /* ~52px — scellé 12·05 visible */
  width: auto;
  max-width: 22rem;
}
@media (max-width: 720px) {
  .wordmark-logo { height: 2.5rem; max-width: 16rem; }
  .header-inner { height: 4.5rem; }
}

.main-nav { display: flex; align-items: center; gap: var(--s-6); }
.main-nav ul { display: flex; gap: var(--s-5); list-style: none; padding: 0; margin: 0; }
.main-nav a {
  font-size: 0.9375rem;
  color: var(--graphite);
  text-decoration: none;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.main-nav a:hover, .main-nav a[aria-current="page"] {
  color: var(--ink-deep);
  border-bottom-color: var(--gold);
}

.lang-switch {
  display: flex;
  gap: var(--s-1);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--graphite);
}
.lang-switch a { color: var(--graphite); text-decoration: none; padding: 0.25rem 0.45rem; border: 1px solid var(--silver); border-radius: var(--r-1); }
.lang-switch a[aria-current] { color: var(--paper-cream); background: var(--ink-deep); border-color: var(--ink-deep); }
.lang-switch a:hover { border-color: var(--gold); color: var(--ink-deep); }

.nav-toggle {
  display: none;
  width: 2.5rem; height: 2.5rem;
  align-items: center; justify-content: center;
  background: transparent;
}
.nav-toggle span {
  display: block; width: 1.25rem; height: 1px;
  background: var(--ink-deep); position: relative;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 100%; height: 1px; background: var(--ink-deep);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top: 6px; }

@media (max-width: 960px) {
  .main-nav ul { display: none; }
  .nav-toggle { display: inline-flex; }
  .main-nav.is-open ul {
    display: flex; flex-direction: column;
    position: absolute; top: 4.5rem; left: 0; right: 0;
    background: var(--paper-cream); padding: var(--s-5);
    border-bottom: 1px solid var(--silver);
  }
}

/* --- 6. HERO ------------------------------------------------------------- */
.hero {
  position: relative;
  padding: var(--s-10) 0 var(--s-9) 0;
  background: linear-gradient(180deg, var(--paper-cream) 0%, var(--silver-light) 100%);
  overflow: hidden;
}

.hero .eyebrow { display: block; margin-bottom: var(--s-4); }
.hero .hero-title { color: var(--ink-deep); margin-bottom: var(--s-5); }
.hero .lead { max-width: 44rem; margin-bottom: var(--s-6); }

.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); }

.hero::after {
  content: "";
  position: absolute;
  right: -3rem; bottom: -3rem;
  width: 14rem; height: 14rem;
  border: 1px solid var(--gold);
  border-radius: 50%;
  opacity: 0.15;
  pointer-events: none;
}

/* --- 7. BOUTONS --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.85rem 1.6rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--ink-deep);
  border-radius: var(--r-1);
  text-decoration: none;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
  cursor: pointer;
}

.btn-primary { background: var(--ink-deep); color: var(--paper-cream); }
.btn-primary:hover { background: var(--gold-dark); border-color: var(--gold-dark); color: var(--paper-cream); }

.btn-ghost { background: transparent; color: var(--ink-deep); }
.btn-ghost:hover { background: var(--ink-deep); color: var(--paper-cream); }

.btn-gold { background: var(--gold); border-color: var(--gold); color: var(--ink-deep); }
.btn-gold:hover { background: var(--gold-dark); border-color: var(--gold-dark); }

/* --- 8. CARDS ----------------------------------------------------------- */
.card {
  background: #FFFCF7;
  border: 1px solid var(--silver);
  padding: var(--s-6);
  border-radius: var(--r-2);
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.card:hover { border-color: var(--gold); box-shadow: var(--shadow-2); }

.card h3 { margin-top: 0; }
.card .meta { margin-bottom: var(--s-3); }
.card > .meta:last-child {
  display: block;
  margin: var(--s-4) 0 0 0;
  padding-top: var(--s-3);
  border-top: 1px solid var(--silver);
  color: var(--graphite);
}

.section-footer {
  margin-top: var(--s-6);
  padding-top: var(--s-4);
  border-top: 1px solid var(--silver);
  text-align: right;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
}

.card-bordered {
  border-left: 3px solid var(--gold);
  padding-left: var(--s-5);
  background: transparent;
}

/* --- 9. DISCLOSURE R1 (Intérêts liés — KEYSAFE) ------------------------- */
.disclosure {
  margin: var(--s-6) 0;
  padding: var(--s-5);
  border: 1px solid var(--bordeaux);
  background: rgba(74, 24, 32, 0.03);
  border-left: 4px solid var(--bordeaux);
}
.disclosure .label {
  display: inline-block;
  margin-bottom: var(--s-2);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--bordeaux);
  font-weight: 600;
}
.disclosure p { margin-bottom: 0; font-size: 0.9375rem; color: var(--graphite); }
.disclosure a { color: var(--bordeaux); }

/* Cartouche Travaux préparatoires */
.preparatory {
  margin: var(--s-5) 0;
  padding: var(--s-4) var(--s-5);
  background: var(--silver-light);
  border-left: 3px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--graphite);
}

/* --- 10. TABLES ---------------------------------------------------------- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--s-5) 0;
  font-size: 0.9375rem;
}
th, td {
  padding: var(--s-3) var(--s-4);
  text-align: left;
  border-bottom: 1px solid var(--silver);
  vertical-align: top;
}
th {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--graphite);
  background: var(--silver-light);
  border-bottom: 2px solid var(--ink-deep);
}

/* --- 11. FORMULAIRES ---------------------------------------------------- */
form.dzc-form { display: grid; gap: var(--s-4); max-width: 40rem; }

.field { display: flex; flex-direction: column; gap: var(--s-2); }
.field label {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--graphite);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.field input, .field textarea, .field select {
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--silver);
  border-radius: var(--r-1);
  background: #FFFCF7;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--ink-deep);
  transition: border-color var(--t-fast) var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184, 153, 104, 0.15);
}
.field textarea { min-height: 9rem; resize: vertical; }

.field .required::after { content: " *"; color: var(--bordeaux); }

.form-note { font-size: 0.8125rem; color: var(--graphite); margin-top: var(--s-3); }

/* --- 12. FOOTER --------------------------------------------------------- */
.site-footer {
  background: var(--ink-deep);
  color: var(--silver);
  padding: var(--s-8) 0 var(--s-5) 0;
  margin-top: var(--s-10);
}
.site-footer a { color: var(--silver); text-decoration: none; }
.site-footer a:hover { color: var(--gold); }
.site-footer h4 {
  color: var(--paper-cream);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--s-4);
}
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: var(--s-6); }
.footer-grid ul { list-style: none; padding: 0; }
.footer-grid li { margin-bottom: var(--s-2); font-size: 0.9375rem; }

.footer-bottom {
  margin-top: var(--s-7);
  padding-top: var(--s-5);
  border-top: 1px solid rgba(197, 192, 181, 0.2);
  display: flex;
  justify-content: space-between;
  gap: var(--s-5);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--silver);
  letter-spacing: 0.05em;
}
.footer-seal {
  color: var(--gold);
  letter-spacing: 0.15em;
}

/* --- 13. SCELLÉ 12·05 (watermark éditorial) ---------------------------- */
.editorial-seal {
  position: fixed;
  right: var(--s-5);
  bottom: var(--s-5);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  opacity: 0.08;
  pointer-events: none;
  user-select: none;
  z-index: 1;
}

/* --- 14. COOKIE BANNER (CNIL) ------------------------------------------ */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--ink-deep);
  color: var(--paper-cream);
  padding: var(--s-5);
  box-shadow: 0 -4px 20px rgba(10, 22, 40, 0.2);
  z-index: 100;
  display: none;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--s-5);
  flex-wrap: wrap;
}
.cookie-banner p { margin: 0; font-size: 0.875rem; flex: 1; min-width: 20rem; }
.cookie-banner p a { color: var(--gold); }
.cookie-actions { display: flex; gap: var(--s-3); }
.cookie-actions .btn { padding: 0.55rem 1.1rem; font-size: 0.875rem; }
.cookie-actions .btn-primary { background: var(--gold); border-color: var(--gold); color: var(--ink-deep); }
.cookie-actions .btn-primary:hover { background: var(--gold-dark); border-color: var(--gold-dark); }
.cookie-actions .btn-ghost { color: var(--paper-cream); border-color: var(--silver); }

/* --- 15. SCROLL-REVEAL (P2-03 sobre) ---------------------------------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease); }
.reveal.is-in { opacity: 1; transform: translateY(0); }

/* --- 16. ACCESSIBILITÉ -------------------------------------------------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  top: -3rem;
  left: var(--s-4);
  background: var(--ink-deep);
  color: var(--paper-cream);
  padding: 0.65rem 1.2rem;
  border-radius: var(--r-1);
  z-index: 200;
  text-decoration: none;
  font-weight: 500;
  transition: top var(--t-fast) var(--ease);
}
.skip-link:focus { top: var(--s-4); color: var(--paper-cream); }

/* --- 17. COMPOSANTS SPÉCIFIQUES ---------------------------------------- */
.pillar-list {
  counter-reset: pillar;
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--s-5);
}
.pillar-list li {
  counter-increment: pillar;
  padding-left: 3rem;
  position: relative;
}
.pillar-list li::before {
  content: "0" counter(pillar);
  position: absolute;
  left: 0; top: 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--gold);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.timeline { list-style: none; padding: 0; border-left: 1px solid var(--silver); margin-left: var(--s-4); }
.timeline li { position: relative; padding: 0 0 var(--s-5) var(--s-5); }
.timeline li::before {
  content: "";
  position: absolute; left: -4px; top: 0.5rem;
  width: 7px; height: 7px;
  background: var(--gold);
  border-radius: 50%;
}
.timeline .year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.2rem;
}

/* Publications card */
.pub-card {
  background: #FFFCF7;
  border: 1px solid var(--silver);
  padding: var(--s-5) var(--s-6);
  position: relative;
  transition: border-color var(--t-base) var(--ease);
}
.pub-card:hover { border-color: var(--gold); }
.pub-card .pub-meta {
  display: flex;
  gap: var(--s-5);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--graphite);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--s-3);
}
.pub-card h3 { margin-top: 0; font-size: 1.25rem; }
.pub-card .abstract { color: var(--graphite); font-size: 0.9375rem; }
.pub-card .pub-actions { display: flex; gap: var(--s-3); margin-top: var(--s-4); }

/* Schéma infrastructure (encadré gold) */
.framework {
  background: #FFFCF7;
  border: 1px solid var(--silver);
  border-top: 3px solid var(--gold);
  padding: var(--s-6);
  margin: var(--s-6) 0;
}

/* Badge statut */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--graphite);
  border-radius: var(--r-1);
  color: var(--graphite);
}
.badge-gold { border-color: var(--gold); color: var(--gold-dark); }
.badge-bordeaux { border-color: var(--bordeaux); color: var(--bordeaux); }

/* --- 18. IMPRESSION ----------------------------------------------------- */
@media print {
  .site-header, .site-footer, .cookie-banner, .editorial-seal { display: none; }
  body { background: white; color: black; }
  a { color: black; text-decoration: underline; }
  .container { max-width: 100%; }
}