/* ==========================================================================
   Accessibility Sentinel — design system
   Contraintes : contrastes vérifiés WCAG 2.2 AA (souvent AAA), focus visible
   partout, tailles fluides, aucune information portée par la seule couleur.
   ========================================================================== */

:root {
  /* Palette de marque */
  --dark-walnut: #012622;   /* evergreen */
  --rust-brown: #59114d;    /* deep-purple */
  --tomato: #cd4631;        /* rosy-copper */
  --amber-flame: #003b36;   /* evergreen-2 */
  --banana-cream: #ece5f0;  /* lavender-mist */

  /* Rôles sémantiques — contrastes vérifiés (script WCAG, contraste réel calculé) :
     dark-walnut/blanc = 16.1:1 · rust-brown/blanc = 13.0:1 · banana-cream/dark-walnut = 13.1:1
     tomato/blanc = 4.65:1 (AA texte normal, à réserver aux gros textes/badges par prudence) */
  --color-bg: #f7f4f8;
  --color-surface: #ffffff;
  --color-surface-alt: var(--banana-cream);
  --color-text: var(--dark-walnut);
  --color-text-on-dark: var(--banana-cream);
  --color-primary: var(--rust-brown);      /* boutons/liens : 13.0:1 sur blanc */
  --color-primary-hover: var(--dark-walnut);
  --color-accent: var(--tomato);           /* décoratif, grands titres, icônes uniquement */
  --color-highlight: var(--banana-cream);  /* fonds encadrés, texte dark-walnut : 13.1:1 */
  --color-highlight-2: var(--amber-flame); /* fonds secondaires foncés, texte clair : 10.2:1 */
  --color-dark-surface: var(--dark-walnut);
  --color-border: #d9cfe0;
  --color-focus: var(--rust-brown);
  --color-focus-on-dark: var(--banana-cream);

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: Georgia, "Times New Roman", serif;

  --max-width: 72rem;
  --radius: 0.5rem;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
}

/* ---- Reset minimal ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; }
svg { flex-shrink: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--dark-walnut);
}
h1 { font-size: clamp(2rem, 4vw + 1rem, 3rem); margin: 0 0 var(--space-2); }
h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2.125rem); margin: var(--space-5) 0 var(--space-2); }
h3 { font-size: 1.375rem; margin: var(--space-3) 0 var(--space-1); }

p { margin: 0 0 var(--space-2); max-width: 65ch; }
ul, ol { padding-left: 1.4em; }
li { margin-bottom: 0.4em; }

a {
  color: var(--color-primary);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
a:hover { color: var(--color-primary-hover); }

/* ---- Focus visible : jamais supprimé, toujours net ---- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 2px;
}
.on-dark :is(a, button, input, [tabindex]):focus-visible {
  outline-color: var(--color-focus-on-dark);
}

/* ---- Lien d'évitement ---- */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--dark-walnut);
  color: var(--color-text-on-dark);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  z-index: 100;
  transition: top 0.15s ease;
  font-weight: 700;
}
.skip-link:focus {
  top: 1rem;
}

/* ---- Layout ---- */
.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---- Bandeau langue ---- */
.lang-bar {
  background: var(--dark-walnut);
  color: var(--color-text-on-dark);
  font-size: 0.875rem;
}
.lang-bar .container {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  padding-block: 0.4rem;
}
.lang-bar a { color: var(--color-text-on-dark); }
.lang-bar [aria-current="true"] {
  font-weight: 700;
  text-decoration: underline;
}

/* ---- En-tête / navigation ---- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
  gap: var(--space-3);
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--dark-walnut);
  text-decoration: none;
}
.logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.6rem;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--dark-walnut);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark-walnut);
  cursor: pointer;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.main-nav a {
  color: var(--dark-walnut);
  text-decoration: none;
  font-weight: 600;
  padding: 0.4rem 0.2rem;
  border-bottom: 3px solid transparent;
}
.main-nav a:hover { border-bottom-color: var(--amber-flame); }
.main-nav a[aria-current="page"] { border-bottom-color: var(--rust-brown); }

.header-cta {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; align-items:center; gap:.4rem; }
  .main-nav {
    display: none;
    width: 100%;
    order: 3;
  }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; padding-block: var(--space-1); }
  .site-header .container { flex-wrap: wrap; }
}

/* ---- Boutons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1.2;
}
.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--color-primary-hover);
  color: #ffffff;
}
.btn-secondary {
  background: transparent;
  color: var(--dark-walnut);
  border-color: var(--dark-walnut);
}
.btn-secondary:hover { background: var(--color-surface-alt); color: var(--dark-walnut); }
.btn-on-dark {
  background: var(--banana-cream);
  color: var(--dark-walnut);
}
.btn-on-dark:hover, .btn-on-dark:focus-visible { background: #f7f2fa; color: var(--dark-walnut); }

/* ---- Hero ---- */
.hero {
  padding-block: var(--space-5);
  background: linear-gradient(180deg, var(--color-surface-alt), var(--color-bg));
  border-bottom: 1px solid var(--color-border);
}
.eyebrow {
  display: inline-block;
  background: var(--banana-cream);
  color: var(--dark-walnut);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  margin-bottom: var(--space-2);
}
.hero p.lede {
  font-size: 1.2rem;
  max-width: 60ch;
}
.hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

/* ---- Sections ---- */
section { padding-block: var(--space-4); }
.section-alt { background: var(--color-surface-alt); }
.section-dark {
  background: var(--color-dark-surface);
  color: var(--color-text-on-dark);
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--color-text-on-dark); }
.section-dark a:not(.btn) { color: var(--banana-cream); }
.section-intro { max-width: 68ch; }

/* ---- Grilles / cartes ---- */
.grid {
  display: grid;
  gap: var(--space-3);
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}
.card h3 { margin-top: 0; }

.stat-card {
  background: var(--dark-walnut);
  color: var(--color-text-on-dark);
  border-radius: var(--radius);
  padding: var(--space-3);
  text-align: left;
}
.stat-card .stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--banana-cream);
  display: block;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.callout {
  background: var(--banana-cream);
  color: var(--dark-walnut);
  border-radius: var(--radius);
  padding: var(--space-3);
}
.callout-amber {
  background: var(--amber-flame);
  color: var(--banana-cream);
  border-radius: var(--radius);
  padding: var(--space-3);
}
.callout-amber h1, .callout-amber h2, .callout-amber h3 { color: var(--banana-cream); }
.callout-amber a:not(.btn) { color: var(--banana-cream); text-decoration-color: currentColor; }

/* ---- Table ---- */
.table-wrap { overflow-x: auto; margin-block: var(--space-2); }
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 40rem;
}
caption {
  text-align: left;
  font-weight: 700;
  margin-bottom: var(--space-1);
  color: var(--dark-walnut);
}
th, td {
  text-align: left;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  vertical-align: top;
}
thead th {
  background: var(--dark-walnut);
  color: var(--color-text-on-dark);
}
tbody tr:nth-child(even) { background: var(--color-surface-alt); }

/* ---- Badges de sévérité (icône + texte, jamais couleur seule) ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 2px solid currentColor;
}
.badge-critical { color: var(--tomato); }
.badge-serious { color: var(--rust-brown); }
.badge-moderate { color: var(--amber-flame); }

/* ---- Timeline / étapes méthodologie ---- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  display: grid;
  gap: var(--space-3);
}
.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 3.5rem;
  margin: 0;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0;
  width: 2.5rem; height: 2.5rem;
  border-radius: 50%;
  background: var(--rust-brown);
  color: #ffffff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-family: var(--font-heading);
}

/* ---- Formulaire ---- */
.form-field { margin-bottom: var(--space-3); }
.form-field label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--dark-walnut);
}
.form-field .hint {
  font-size: 0.9rem;
  color: #3d5551;
  margin-top: 0.3rem;
}
input, textarea, select {
  width: 100%;
  font: inherit;
  padding: 0.7rem 0.9rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-text);
}
input:focus-visible, textarea:focus-visible, select:focus-visible {
  border-color: var(--rust-brown);
}
.required-marker { color: var(--rust-brown); }
fieldset { border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-2); margin: 0 0 var(--space-3); }
legend { font-weight: 700; padding-inline: 0.4rem; color: var(--dark-walnut); }

.form-message {
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
  font-weight: 600;
}
.form-message.success {
  background: #e4f2df;
  color: #1f4d16;
  border: 2px solid #3f7a2a;
}
.form-message.error {
  background: #fdeceb;
  color: #7a1f14;
  border: 2px solid var(--rust-brown);
}

/* honeypot anti-spam, invisible mais accessible-safe (pas display:none seul) */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---- Pied de page ---- */
.site-footer {
  background: var(--dark-walnut);
  color: var(--color-text-on-dark);
  padding-block: var(--space-4);
  margin-top: var(--space-5);
}
.site-footer a { color: var(--banana-cream); }
.footer-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}
.footer-grid h2 {
  font-size: 1rem;
  margin: 0 0 var(--space-1);
  color: var(--color-text-on-dark);
}
.footer-bottom {
  border-top: 1px solid rgba(236,229,240,0.25);
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.footer-legal {
  margin-top: var(--space-2);
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  font-size: 0.9rem;
}

/* ---- Pages légales (mentions, confidentialité, cookies) ---- */
.legal-content { max-width: 68ch; }
.legal-content h2 { margin-top: var(--space-4); }
.legal-content .updated { color: #3d5551; font-style: italic; }
.legal-content address { font-style: normal; }

/* ---- Bannière de consentement cookies ---- */
#cookie-modal {
  position: fixed;
  left: 0; right: 0; bottom: -100%;
  z-index: 200;
  background: var(--color-surface);
  border-top: 3px solid var(--rust-brown);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
  padding: var(--space-3);
  transition: bottom 0.3s ease;
}
#cookie-modal.show { bottom: 0; }
#cookie-modal .cookie-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}
#cookie-modal .cookie-text { flex: 1 1 24rem; }
#cookie-modal .cookie-title { font-weight: 700; color: var(--dark-walnut); margin-bottom: 0.3rem; }
#cookie-modal .cookie-actions { display: flex; gap: var(--space-1); flex-wrap: wrap; }
@media (prefers-reduced-motion: reduce) {
  #cookie-modal { transition: none; }
}

/* ---- Bouton de prise de rendez-vous ---- */
.btn-rdv { background: var(--dark-walnut); color: #ffffff; }
.btn-rdv:hover, .btn-rdv:focus-visible { background: var(--rust-brown); color: #ffffff; }

/* ---- Utilitaires ---- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }