/* Vitrine et plateforme : feuille commune.
   Couleurs uniquement par variables, définies dans les trois blocs de thème ci-dessous. */

@font-face {
  font-family: "Fraunces";
  src: url("fonts/fraunces.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Public Sans";
  src: url("fonts/public-sans.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* Thème clair : papier et stylo rouge */
:root {
  color-scheme: light dark;
  --fond: #f5f1e8;
  --fond-carte: #fbf9f4;
  --texte: #1d1b18;
  --texte-doux: #5a554c;
  --accent: #b8321a;
  --accent-texte: #ffffff;
  --bordure: #d9d2c3;
  --trait: #e7e0d2;
  --marge: #e2a093;
  --focus: #1d4ed8;

  --police-titre: "Fraunces", ui-serif, Georgia, "Times New Roman", serif;
  --police-texte: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --largeur: 74rem;
  --gouttiere: clamp(1rem, 4vw, 3rem);
  --colonne-marge: 11rem;
}

/* Thème sombre : suit le système sauf choix explicite du thème clair */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="clair"]) {
    --fond: #151412;
    --fond-carte: #1d1c19;
    --texte: #ede8de;
    --texte-doux: #a9a296;
    --accent: #ff7a5c;
    --accent-texte: #1a0d08;
    --bordure: #3a362f;
    --trait: #2a2824;
    --marge: #6b2e24;
    --focus: #8ab4ff;
  }
}

:root[data-theme="sombre"] {
  --fond: #151412;
  --fond-carte: #1d1c19;
  --texte: #ede8de;
  --texte-doux: #a9a296;
  --accent: #ff7a5c;
  --accent-texte: #1a0d08;
  --bordure: #3a362f;
  --trait: #2a2824;
  --marge: #6b2e24;
  --focus: #8ab4ff;
}

:root[data-theme="clair"] {
  color-scheme: light;
}

:root[data-theme="sombre"] {
  color-scheme: dark;
}

/* Base */

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

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

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font-family: var(--police-texte);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  line-height: 1.6;
  font-feature-settings: "kern";
  text-rendering: optimizeLegibility;
}

p,
li,
dd,
a {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  font-family: var(--police-titre);
  font-optical-sizing: auto;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0 0 1em;
  max-width: 38em;
  text-wrap: pretty;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

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

::selection {
  background: var(--accent);
  color: var(--accent-texte);
}

.evitement {
  position: absolute;
  left: var(--gouttiere);
  top: -4rem;
  padding: 0.5rem 1rem;
  background: var(--texte);
  color: var(--fond);
  z-index: 10;
}

.evitement:focus {
  top: 0.75rem;
}

.page {
  max-width: var(--largeur);
  margin: 0 auto;
  padding: 0 var(--gouttiere);
}

/* En-tête */

.entete {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--trait);
}

.marque {
  font-family: var(--police-titre);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--texte);
  text-decoration: none;
}

.outils {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.langue,
.bouton-theme {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0 0.75rem;
  border: 1px solid var(--bordure);
  border-radius: 999px;
  background: transparent;
  color: var(--texte);
  font: 600 0.85rem/1 var(--police-texte);
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
}

.langue:hover,
.bouton-theme:hover {
  border-color: var(--texte);
}

.bouton-theme {
  padding: 0;
}

.bouton-theme svg {
  width: 1.15rem;
  height: 1.15rem;
}

.bouton-theme .icone-soleil {
  display: none;
}

.bouton-theme[aria-pressed="true"] .icone-soleil {
  display: block;
}

.bouton-theme[aria-pressed="true"] .icone-lune {
  display: none;
}

/* Sections en « copie double » : le titre dans la marge, le texte à droite du trait rouge */

.bloc {
  display: grid;
  grid-template-columns: 1fr;
}

.bloc__marge {
  padding-top: 2.5rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bloc__contenu {
  padding: 0.75rem 0 2.75rem;
  border-bottom: 1px solid var(--trait);
}

@media (min-width: 56rem) {
  .bloc {
    grid-template-columns: var(--colonne-marge) 1fr;
  }

  .bloc__marge {
    padding: 4.25rem 1.5rem 0 0;
    text-align: right;
  }

  .bloc__contenu {
    padding: 4rem 0 4rem 2.5rem;
    border-left: 2px solid var(--marge);
  }
}

.bloc h2 {
  font-size: clamp(1.75rem, 1.3rem + 1.8vw, 2.75rem);
  margin-bottom: 1.25rem;
  max-width: 18em;
}

/* Ouverture */

.ouverture .bloc__contenu {
  padding-top: 1.5rem;
}

@media (min-width: 56rem) {
  .ouverture .bloc__contenu {
    padding-top: 5.5rem;
    padding-bottom: 5rem;
  }

  .ouverture .bloc__marge {
    padding-top: 6rem;
  }
}

.ouverture h1 {
  font-size: clamp(2.4rem, 1.4rem + 4.6vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  max-width: 13em;
  margin-bottom: 1.5rem;
}

.ouverture h1 em {
  font-style: normal;
  color: var(--accent);
}

.chapeau {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  line-height: 1.5;
  color: var(--texte-doux);
  max-width: 32em;
}

.faits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 2rem;
  margin: 2.5rem 0 0;
  padding: 1.75rem 0 0;
  border-top: 1px solid var(--trait);
}

@media (min-width: 44rem) {
  .faits {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.faits dt {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--texte-doux);
  margin-bottom: 0.35rem;
}

.faits dd {
  margin: 0;
  font-family: var(--police-titre);
  font-size: clamp(1.15rem, 1rem + 0.5vw, 1.4rem);
  font-weight: 500;
  line-height: 1.25;
}

/* Étapes */

.etapes {
  list-style: none;
  counter-reset: etape;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 44rem) {
  .etapes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.25rem 3rem;
  }
}

.etapes li {
  counter-increment: etape;
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  gap: 0.25rem 0.75rem;
}

.etapes li::before {
  content: counter(etape);
  grid-row: span 2;
  font-family: var(--police-titre);
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1;
  color: var(--accent);
}

.etapes strong {
  display: block;
  font-weight: 650;
}

.etapes span {
  color: var(--texte-doux);
}

/* Garanties */

.garanties {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

@media (min-width: 44rem) {
  .garanties {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 3rem;
  }
}

.garanties li {
  padding: 1.1rem 0;
  border-top: 1px solid var(--trait);
}

.garanties strong {
  display: block;
  font-family: var(--police-titre);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.garanties span {
  color: var(--texte-doux);
}

/* Contact */

.contacts {
  display: grid;
  gap: 2rem;
  margin-top: 1.5rem;
}

@media (min-width: 44rem) {
  .contacts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3rem;
  }
}

.contacts h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.courriel {
  font-family: var(--police-titre);
  font-size: clamp(1.15rem, 1rem + 0.6vw, 1.5rem);
  font-weight: 500;
}

/* Pied de page */

.pied {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding: 2rem 0 3rem;
  color: var(--texte-doux);
  font-size: 0.9rem;
}

.pied p {
  margin: 0;
}

.acces {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.bouton {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-texte);
  font-weight: 650;
  text-decoration: none;
}

.bouton--discret {
  background: transparent;
  color: var(--accent);
}

/* Texte provisoire, à remplacer avant publication */

.a-completer {
  outline: 2px dashed var(--accent);
  outline-offset: 2px;
  background: var(--fond-carte);
  color: var(--texte-doux);
  font-style: italic;
}

[hidden] {
  display: none !important;
}

/* Animations : désactivées si l'utilisateur demande de réduire les mouvements */

.accroche {
  font-family: var(--police-titre);
  font-size: clamp(1.3rem, 1rem + 1.6vw, 2rem);
  font-weight: 500;
  line-height: 1.25;
  max-width: 24em;
  margin-bottom: 1.25rem;
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes monte {
    from { opacity: 0; transform: translateY(1.5rem); }
    to { opacity: 1; transform: none; }
  }

  @keyframes trace {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
  }

  @keyframes souligne {
    from { background-size: 0 0.12em; }
    to { background-size: 100% 0.12em; }
  }

  .ouverture h1 { animation: monte 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
  .ouverture .accroche { animation: monte 0.9s 0.2s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
  .ouverture .chapeau { animation: monte 0.9s 0.35s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
  .ouverture .faits { animation: monte 0.9s 0.5s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
  .ouverture .bloc__marge { animation: monte 0.9s 0.1s both; }

  .ouverture h1 em {
    background: linear-gradient(var(--accent), var(--accent)) no-repeat 0 100% / 100% 0.12em;
    animation: souligne 1s 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }

  @media (min-width: 56rem) {
    .bloc__contenu { position: relative; border-left-color: transparent; }
    .bloc__contenu::before {
      content: "";
      position: absolute;
      left: -2px;
      top: 0;
      bottom: 0;
      width: 2px;
      background: var(--marge);
      transform-origin: top;
      animation: trace 1.1s cubic-bezier(0.2, 0.7, 0.2, 1) both;
    }
  }

  .apparait {
    opacity: 0;
    transform: translateY(1.25rem);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
  }

  .apparait.visible {
    opacity: 1;
    transform: none;
  }

  .etapes li:nth-child(2), .garanties li:nth-child(2), .contacts > div:nth-child(2) { transition-delay: 0.1s; }
  .etapes li:nth-child(3), .garanties li:nth-child(3) { transition-delay: 0.2s; }
  .etapes li:nth-child(4), .garanties li:nth-child(4) { transition-delay: 0.3s; }

  .bouton, .langue, .bouton-theme { transition: transform 0.15s ease, border-color 0.15s ease; }
  .bouton:hover { transform: translateY(-2px); }
}