/*
  Site vitrine temporaire de Veilao (voir docs/OPERATIONS.md, « Site vitrine temporaire »).
  Couleurs : charte « bleu pastel » (docs/CHARTE-GRAPHIQUE.md), thème clair seulement.
  Contrastes mesurés : au moins 4,5:1 pour le texte, 3:1 pour les contours utiles.
*/

:root {
  color-scheme: light;
  /* Bleus de la marque */
  --primary: #1e3a8a; /* bleu nuit : boutons, icônes */
  --primary-hover: #172554; /* bleu encre : survol, titres sur fond pastel */
  --on-primary: #ffffff;
  --link: #1d4ed8; /* bleu vif : liens, contour de focus */
  --ring: #1d4ed8;
  --pastel: #dbeafe; /* bleu pastel : accroche, encadré testeurs */
  --pastel-strong: #bfdbfe; /* bleu ciel : fonds d'icônes, bordures teintées */
  --surface: #eff6ff; /* bleu très pâle : sections et cartes */
  --ink: #172554; /* texte sur fond pastel */
  --ink-muted: #334155; /* texte secondaire sur fond pastel */
  /* Neutres */
  --bg: #ffffff;
  --card: #ffffff;
  --fg: #18181b;
  --muted: #52525b;
  --border: #e4e4e7;
  /* Illustration de l'alerte */
  --success-bg: #dcfce7;
  --success-fg: #166534;
  --neutral-bg: #f4f4f5;
  --neutral-fg: #3f3f46;
  --note-bg: #fef3c7;
  --note-fg: #78350f;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  margin: 0;
  font-style: normal;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

p {
  margin: 0;
}

a {
  color: var(--link);
  text-underline-offset: 0.2em;
}

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: 64rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  background: var(--primary);
  color: var(--on-primary);
  font-weight: 600;
}

.skip-link:focus {
  top: 0.5rem;
}

/* En-tête */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo img {
  display: block;
  width: auto;
  height: 2rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.header-nav .nav-link {
  display: none;
  padding: 0.375rem 0.625rem;
  border-radius: 0.375rem;
  color: var(--muted);
  font-size: 0.9375rem;
  text-decoration: none;
}

.header-nav .nav-link:hover {
  color: var(--fg);
}

/* Boutons */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 0.625rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    background-color 0.15s,
    border-color 0.15s;
}

.button svg {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

.button-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.button-primary:hover {
  background: var(--primary-hover);
}

.button-outline {
  border-color: var(--primary);
  background: transparent;
  color: var(--ink);
}

.button-outline:hover {
  background: var(--pastel-strong);
}

.button-small {
  min-height: 2.5rem;
  padding: 0.375rem 0.875rem;
  font-size: 0.9375rem;
}

/* Sections */

.section {
  padding-block: 3.5rem;
  border-top: 1px solid var(--border);
}

.section-surface {
  background: var(--surface);
}

.section-title {
  font-size: 1.625rem;
}

.section-intro {
  margin-top: 0.625rem;
  max-width: 40rem;
  color: var(--muted);
}

/* Accroche */

.hero {
  padding-block: 3rem 3.5rem;
  background: var(--pastel);
  color: var(--ink);
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  margin-bottom: 1.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: 0.375rem;
  background: var(--bg);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
}

.hero h1 {
  max-width: 44rem;
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin-top: 1.125rem;
  max-width: 40rem;
  font-size: 1.125rem;
  color: var(--ink-muted);
  text-wrap: pretty;
}

.hero-audience {
  margin-top: 0.875rem;
  max-width: 40rem;
  color: var(--ink-muted);
}

.hero-note {
  margin-top: 0.875rem;
  color: var(--ink-muted);
  font-size: 0.9375rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Illustration : alerte du matin, marquée comme fictive */

.mock {
  margin: 0;
  padding: 1.25rem;
  border: 1px solid var(--pastel-strong);
  border-radius: 1rem;
  background: var(--card);
  color: var(--fg);
  box-shadow: 0 12px 32px -12px rgb(23 37 84 / 0.25);
}

.mock-tag {
  display: inline-block;
  margin-bottom: 0.875rem;
  padding: 0.125rem 0.5rem;
  border-radius: 0.25rem;
  background: var(--note-bg);
  color: var(--note-fg);
  font-size: 0.8125rem;
  font-weight: 600;
}

.mock-title {
  font-size: 1.0625rem;
  font-weight: 650;
}

.mock-sub {
  color: var(--muted);
  font-size: 0.875rem;
}

.mock-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.mock-item {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
  padding: 0.875rem 0;
  border-top: 1px solid var(--pastel-strong);
}

.mock-item-title {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.35;
}

.mock-item-meta {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.8125rem;
}

.mock-item-why {
  margin-top: 0.375rem;
  font-size: 0.8125rem;
}

.score {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 2.5rem;
  height: 2rem;
  border-radius: 0.375rem;
  font-size: 0.9375rem;
  font-weight: 700;
}

.score-high {
  background: var(--success-bg);
  color: var(--success-fg);
}

.score-mid {
  background: var(--neutral-bg);
  color: var(--neutral-fg);
}

/* Services */

.cards {
  display: grid;
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 0.875rem;
  background: var(--card);
}

#services .card {
  border-color: transparent;
  background: var(--surface);
}

.card h3 {
  font-size: 1.125rem;
}

.card p {
  margin-top: 0.5rem;
  color: var(--muted);
}

.icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  border-radius: 0.625rem;
  background: var(--pastel-strong);
  color: var(--primary);
}

.icon svg {
  width: 1.375rem;
  height: 1.375rem;
}

/* Encadré testeurs */

.signup {
  padding: 1.5rem;
  border: 1px solid var(--pastel-strong);
  border-radius: 1rem;
  background: var(--pastel);
  color: var(--ink);
}

.signup h2 {
  font-size: 1.5rem;
}

.signup p {
  margin-top: 0.75rem;
  max-width: 40rem;
}

.signup ul {
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
}

.signup li + li {
  margin-top: 0.25rem;
}

.signup .button {
  margin-top: 1.5rem;
}

.signup .signup-note {
  margin-top: 0.875rem;
  font-size: 0.9375rem;
}

/* Questions fréquentes */

.faq {
  margin-top: 2rem;
  border: 1px solid var(--border);
  border-radius: 0.625rem;
  background: var(--card);
}

.faq details + details {
  border-top: 1px solid var(--border);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.125rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  flex-shrink: 0;
  color: var(--muted);
  font-size: 1.375rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.15s;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq details p {
  padding: 0 1.125rem 1.125rem;
  color: var(--muted);
}

/* Pages légales */

.legal {
  max-width: 46rem;
  padding-block: 2.5rem 3.5rem;
}

.legal h1 {
  font-size: 2rem;
}

.legal .updated {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.legal h2 {
  margin-top: 2.25rem;
  font-size: 1.25rem;
}

.legal p,
.legal ul {
  margin-top: 0.75rem;
}

.legal ul {
  padding-left: 1.25rem;
}

.legal li + li {
  margin-top: 0.375rem;
}

/* Page introuvable */

.not-found {
  padding-block: 4rem;
}

.not-found h1 {
  font-size: 2rem;
}

.not-found p {
  margin-top: 0.75rem;
  color: var(--muted);
}

.not-found .button {
  margin-top: 1.5rem;
}

/* Pied de page */

.site-footer {
  padding-block: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9375rem;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--fg);
}

/* Écrans plus larges */

@media (min-width: 640px) {
  .container {
    padding-inline: 1.5rem;
  }

  .hero {
    padding-block: 4.5rem 5rem;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .hero-lead {
    font-size: 1.25rem;
  }

  .hero-actions {
    flex-direction: row;
    align-items: center;
  }

  .section {
    padding-block: 4.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .signup {
    padding: 2.25rem;
  }

  .signup h2 {
    font-size: 1.75rem;
  }

  .site-footer .container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 768px) {
  .header-nav .nav-link {
    display: inline-block;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.15fr 1fr;
    gap: 3rem;
  }
}