/* Apprendre le français en travaillant — feuille de style
   Concept : un manuel scolaire québécois. Texte aligné à gauche, programme présenté
   comme un sommaire, surligneur jaune pour les points clés, bleu du Québec en appui. */

@font-face {
  font-family: "Young Serif";
  src: url("fonts/young-serif-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("fonts/atkinson-hyperlegible-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("fonts/atkinson-hyperlegible-latin-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("fonts/atkinson-hyperlegible-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;

  /* Couleurs */
  --papier: #f4f7fb;
  --blanc: #ffffff;
  --encre: #0f2440;
  --encre-douce: #46597a;
  --bleu: #1c4fa1;
  --bleu-nuit: #0e2a57;
  --ciel: #dce7f6;
  --trait: #c3d2e8;
  --surligneur: #ffdd55;
  --sur-nuit: #e9f0fa;
  --sur-nuit-doux: #a9bfe0;
  --alerte: #b3261e;
  --alerte-fond: #fbe9e7;
  --succes: #1b6e3c;
  --succes-fond: #e4f4ea;

  /* Typographie */
  --titre: "Young Serif", Georgia, "Times New Roman", serif;
  --texte: "Atkinson Hyperlegible", Verdana, "Segoe UI", sans-serif;

  --t-petit: 0.889rem;
  --t-base: 1rem;
  --t-chapo: 1.25rem;
  --t-h3: 1.563rem;
  --t-h2: clamp(1.9rem, 1.2rem + 2.6vw, 2.75rem);
  --t-h1: clamp(2.3rem, 1rem + 5vw, 4.3rem);

  /* Espacement */
  --gouttiere: clamp(16px, 4vw, 40px);
  --largeur: 1180px;
  --section: clamp(3.5rem, 2rem + 6vw, 7rem);
}

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

html {
  font-size: 112.5%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--papier);
  color: var(--encre);
  font-family: var(--texte);
  font-size: var(--t-base);
  line-height: 1.6;
}

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

h1,
h2,
h3,
p,
ul,
dl,
dd,
figure,
blockquote {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

h1,
h2,
h3 {
  font-family: var(--titre);
  font-weight: 400;
  line-height: 1.12;
  text-wrap: balance;
}

h2 {
  font-size: var(--t-h2);
}

h3 {
  font-size: var(--t-h3);
  line-height: 1.2;
}

a {
  color: var(--bleu);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--encre);
}

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

sup {
  font-size: 0.7em;
  line-height: 0;
}

mark {
  color: inherit;
  background: linear-gradient(transparent 58%, var(--surligneur) 58%, var(--surligneur) 94%, transparent 94%);
  padding-inline: 0.1em;
}

.cadre {
  width: 100%;
  max-width: var(--largeur);
  margin-inline: auto;
  padding-inline: var(--gouttiere);
}

.bloc {
  padding-block: var(--section);
}

.chapo {
  font-size: var(--t-chapo);
  line-height: 1.5;
  max-width: 34em;
  color: var(--encre-douce);
}

.entete-section {
  display: grid;
  gap: 1rem;
  margin-bottom: clamp(2rem, 1rem + 3vw, 3.5rem);
}

.lien-evitement {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--encre);
  color: var(--blanc);
  padding: 0.6rem 1rem;
  z-index: 100;
}

.lien-evitement:focus {
  left: 0.5rem;
  top: 0.5rem;
  color: var(--blanc);
}

/* Boutons */

.bouton {
  display: inline-block;
  font-family: var(--texte);
  font-weight: 700;
  font-size: var(--t-base);
  line-height: 1.2;
  text-decoration: none;
  color: var(--blanc);
  background: var(--bleu);
  border: 2px solid var(--bleu);
  border-radius: 6px;
  padding: 0.8em 1.3em;
  transition: background-color 0.15s, border-color 0.15s;
}

.bouton:hover {
  background: var(--encre);
  border-color: var(--encre);
  color: var(--blanc);
}

.bouton--petit {
  font-size: var(--t-petit);
  padding: 0.55em 1em;
}

.lien-simple {
  font-weight: 700;
}

/* En-tête du site */

.barre {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: var(--papier);
  border-bottom: 1px solid var(--trait);
}

.barre__contenu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.6rem;
  flex-wrap: wrap;
  padding-block: 0.5rem;
}

.barre__marque {
  font-family: var(--titre);
  font-size: 1rem;
  line-height: 1.15;
  color: var(--encre);
  text-decoration: none;
  max-width: 14em;
}

.barre__nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.barre__liens {
  display: flex;
  gap: 1.4rem;
  font-size: var(--t-petit);
}

.barre__liens a {
  color: var(--encre);
  text-decoration: none;
  padding-block: 0.3rem;
  border-bottom: 2px solid transparent;
}

.barre__liens a:hover {
  border-bottom-color: var(--surligneur);
}

.barre__menu {
  display: none;
  font: inherit;
  font-size: var(--t-petit);
  font-weight: 700;
  color: var(--encre);
  background: transparent;
  border: 2px solid var(--encre);
  border-radius: 6px;
  padding: 0.5em 0.9em;
  cursor: pointer;
}

/* Ouverture */

.ouverture {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  background: var(--papier);
}

.ouverture__texte {
  display: grid;
  align-content: center;
  gap: 1.4rem;
  padding-block: clamp(3rem, 2rem + 5vw, 6rem);
  padding-right: clamp(1.5rem, 4vw, 4rem);
  padding-left: max(var(--gouttiere), calc((100vw - var(--largeur)) / 2 + var(--gouttiere)));
}

.ouverture h1 {
  font-size: var(--t-h1);
  line-height: 1.04;
  letter-spacing: -0.01em;
}

.ouverture__suite {
  font-family: var(--titre);
  font-size: clamp(1.25rem, 1rem + 1.2vw, 1.75rem);
  line-height: 1.2;
  color: var(--bleu);
  text-wrap: balance;
}

.ouverture__auteur {
  font-size: var(--t-base);
  color: var(--encre-douce);
}

.ouverture__auteur strong {
  color: var(--encre);
}

.ouverture__fiche {
  color: var(--encre-douce);
}

.ouverture__fiche strong {
  color: var(--encre);
}

.ouverture__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.6rem;
  margin-top: 0.4rem;
}

.ouverture__vitrine {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: var(--bleu);
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

/* Les engrenages de la couverture, repris en anneaux pointillés */
.ouverture__vitrine::before,
.ouverture__vitrine::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 14px dashed rgba(255, 255, 255, 0.16);
  animation: tourne 120s linear infinite;
}

.ouverture__vitrine::before {
  width: 34rem;
  height: 34rem;
  top: -11rem;
  right: -12rem;
}

.ouverture__vitrine::after {
  width: 20rem;
  height: 20rem;
  bottom: -7rem;
  left: -6rem;
  border-width: 9px;
  animation-direction: reverse;
  animation-duration: 90s;
}

@keyframes tourne {
  to {
    transform: rotate(360deg);
  }
}

.couverture {
  position: relative;
  z-index: 1;
  width: min(21rem, 78%);
  transform: rotate(-3deg);
  border-radius: 2px 6px 6px 2px;
  box-shadow:
    -6px 0 0 rgba(15, 36, 64, 0.22),
    0 1.5rem 3rem rgba(8, 22, 48, 0.45);
}

/* Tableau de conjugaison */

.conjugaison {
  background: var(--blanc);
  border-block: 1px solid var(--trait);
  padding-block: 1.6rem;
}

.conjugaison__titre {
  font-size: var(--t-petit);
  color: var(--encre-douce);
  margin-bottom: 0.9rem;
}

.conjugaison__formes {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
}

.conjugaison__formes li {
  padding: 0.3rem 1rem;
  border-left: 1px solid var(--trait);
  font-family: var(--titre);
  font-size: clamp(1.05rem, 0.8rem + 0.7vw, 1.35rem);
  line-height: 1.25;
}

.conjugaison__formes li:first-child {
  border-left: 0;
  padding-left: 0;
}

.conjugaison__formes .pronom {
  display: block;
  font-family: var(--texte);
  font-size: var(--t-petit);
  color: var(--bleu);
}

/* Pour qui */

.publics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
}

.public {
  display: grid;
  align-content: start;
  gap: 0.9rem;
  padding-inline: clamp(1rem, 2.5vw, 2.2rem);
  border-left: 1px solid var(--trait);
}

.public:first-child {
  border-left: 0;
  padding-left: 0;
}

.public:last-child {
  padding-right: 0;
}

.public p {
  color: var(--encre-douce);
}

.liste-coches {
  display: grid;
  gap: 0.5rem;
}

.liste-coches li {
  position: relative;
  padding-left: 1.5rem;
}

.liste-coches li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.45em;
  width: 0.75rem;
  height: 0.4rem;
  border-left: 3px solid var(--bleu);
  border-bottom: 3px solid var(--bleu);
  transform: rotate(-45deg);
}

/* Intention de l'auteur */

.intention {
  background: var(--ciel);
}

.intention__grille {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.intention blockquote p {
  font-family: var(--titre);
  font-size: clamp(1.5rem, 1rem + 2vw, 2.3rem);
  line-height: 1.22;
  text-wrap: balance;
}

.intention figcaption {
  margin-top: 1.2rem;
  color: var(--encre-douce);
}

.intention__buts {
  display: grid;
  gap: 1rem;
}

.intention__buts h3 {
  font-size: var(--t-h3);
}

/* Contenu : les trois parties */

.partie {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  padding-block: clamp(2.2rem, 1.5rem + 3vw, 4rem);
  border-top: 2px solid var(--encre);
}

.partie__tete {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.partie__tete .partie__numero {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-weight: 700;
  color: var(--bleu);
}

.partie__numero span {
  font-family: var(--titre);
  font-weight: 400;
  font-size: 4.2rem;
  line-height: 0.8;
}

.partie__numero .partie__pages {
  font-size: var(--t-petit);
  font-weight: 400;
  color: var(--encre-douce);
  margin-left: auto;
}

.partie__tete h3 {
  font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.1rem);
}

.partie__tete p {
  color: var(--encre-douce);
}

.partie__image {
  margin-top: 0.6rem;
}

.partie__image img {
  width: 100%;
  border-radius: 4px;
}

.partie__image--photo img {
  aspect-ratio: 5 / 4;
  object-fit: cover;
  object-position: 50% 28%;
}

.partie__image--etude img {
  object-position: 50% 62%;
}

.partie__image figcaption {
  font-size: 0.78rem;
  color: var(--encre-douce);
  margin-top: 0.5rem;
  line-height: 1.4;
}

.partie__corps {
  display: grid;
  align-content: start;
  gap: 2.2rem;
  min-width: 0;
}

.programme__titre {
  font-family: var(--texte);
  font-weight: 700;
  font-size: var(--t-base);
  color: var(--bleu);
  margin-bottom: 0.4rem;
}

.programme {
  border-top: 1px solid var(--trait);
}

.programme > div {
  display: grid;
  grid-template-columns: minmax(0, 11rem) minmax(0, 1fr);
  gap: 0.2rem 1.5rem;
  padding-block: 0.75rem;
  border-bottom: 1px dotted var(--encre-douce);
}

.programme dt {
  font-weight: 700;
}

.programme dd {
  color: var(--encre-douce);
}

.programme--simple {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 2rem;
  border-top: 1px solid var(--trait);
}

.programme--simple li {
  font-weight: 700;
  padding-block: 0.75rem;
  border-bottom: 1px dotted var(--encre-douce);
}

/* Chansons */

.chansons {
  background: var(--bleu-nuit);
  color: var(--sur-nuit);
}

.chansons .chapo {
  color: var(--sur-nuit-doux);
}

.chansons a {
  color: var(--sur-nuit);
}

.chansons :focus-visible {
  outline-color: var(--surligneur);
}

.chansons__grille {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(2rem, 5vw, 5rem);
}

.chansons__intro {
  display: grid;
  align-content: start;
  gap: 1.2rem;
}

.chansons__note {
  color: var(--sur-nuit-doux);
  font-size: var(--t-petit);
}

.chansons__liste {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.chansons__liste li {
  padding-block: 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

.chansons__liste cite {
  display: block;
  font-family: var(--titre);
  font-style: normal;
  font-size: 1.25rem;
  line-height: 1.25;
}

.chansons__liste span {
  color: var(--sur-nuit-doux);
  font-size: var(--t-petit);
}

/* Auteur */

.auteur__grille {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.auteur__photo {
  position: relative;
  max-width: 22rem;
  margin: 0 0.9rem 0.9rem 0;
}

.auteur__photo::before {
  content: "";
  position: absolute;
  inset: 0.9rem -0.9rem -0.9rem 0.9rem;
  background: var(--bleu);
  border-radius: 4px;
}

.auteur__photo img {
  position: relative;
  width: 100%;
  border-radius: 4px;
}

.auteur__texte {
  display: grid;
  gap: 1.4rem;
}

.auteur__nom {
  display: grid;
  gap: 0.4rem;
}

.auteur__alias {
  color: var(--encre-douce);
}

/* Témoignages */

.temoignages {
  background: var(--blanc);
  border-block: 1px solid var(--trait);
}

.temoignages__liste {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr));
  gap: 2rem;
}

.temoignage {
  display: grid;
  align-content: start;
  gap: 1rem;
  padding-left: 1.3rem;
  border-left: 4px solid var(--surligneur);
}

.temoignage blockquote {
  font-size: 1.1rem;
  line-height: 1.55;
}

.temoignage figcaption {
  font-size: var(--t-petit);
  color: var(--encre-douce);
}

.temoignage figcaption strong {
  display: block;
  color: var(--encre);
}

.temoignages__attente {
  display: grid;
  gap: 0.6rem;
  max-width: 38em;
  padding: 1.6rem 1.8rem;
  border: 2px dashed var(--trait);
  border-radius: 6px;
  color: var(--encre-douce);
}

/* Questions fréquentes */

.questions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(2rem, 5vw, 5rem);
  border-top: 2px solid var(--encre);
}

.question {
  display: grid;
  align-content: start;
  gap: 0.6rem;
  padding-block: 1.6rem;
  border-bottom: 1px dotted var(--encre-douce);
}

.question:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.question h3 {
  font-size: 1.3rem;
}

.question p {
  color: var(--encre-douce);
  max-width: 34em;
}

/* Commander et écrire à l'auteur */

.commander__grille {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.commander__texte {
  display: grid;
  gap: 1.2rem;
}

.commander__fiche {
  margin-top: 0.8rem;
}

.commander__fiche > div {
  grid-template-columns: minmax(0, 6rem) minmax(0, 1fr);
}

.commander__fiche dd strong {
  color: var(--encre);
}

.commander__cas {
  margin-top: 0.4rem;
}

.commander__cas > div {
  grid-template-columns: minmax(0, 1fr);
}

.formulaire {
  display: grid;
  gap: 1.3rem;
  min-width: 0;
  background: var(--blanc);
  border: 1px solid var(--trait);
  border-top: 6px solid var(--bleu);
  border-radius: 4px;
  padding: clamp(1.3rem, 3.5vw, 2.4rem);
}

.formulaire__rangee {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.3rem 1.2rem;
}

.champ {
  display: grid;
  align-content: start;
  gap: 0.35rem;
  min-width: 0;
}

.champ label {
  font-weight: 700;
  font-size: var(--t-petit);
}

.champ__facultatif {
  font-weight: 400;
  color: var(--encre-douce);
}

.champ input,
.champ select,
.champ textarea {
  width: 100%;
  font: inherit;
  color: var(--encre);
  background: var(--blanc);
  border: 2px solid var(--trait);
  border-radius: 6px;
  padding: 0.6em 0.75em;
}

.champ textarea {
  resize: vertical;
  min-height: 8rem;
}

.champ input:hover,
.champ select:hover,
.champ textarea:hover {
  border-color: var(--encre-douce);
}

.champ input:focus-visible,
.champ select:focus-visible,
.champ textarea:focus-visible {
  outline: 3px solid var(--bleu);
  outline-offset: 1px;
  border-color: var(--bleu);
}

.champ [aria-invalid="true"] {
  border-color: var(--alerte);
}

.champ__erreur {
  font-size: var(--t-petit);
  font-weight: 700;
  color: var(--alerte);
}

.champ--piege {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.formulaire__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem 1.2rem;
}

.formulaire .bouton {
  cursor: pointer;
}

.formulaire .bouton:disabled {
  opacity: 0.65;
  cursor: progress;
}

.formulaire__etat {
  flex: 1 1 16rem;
  font-weight: 700;
  padding: 0.7em 0.9em;
  border-radius: 6px;
  border-left: 5px solid var(--bleu);
  background: var(--ciel);
}

.formulaire__etat--succes {
  border-left-color: var(--succes);
  background: var(--succes-fond);
}

.formulaire__etat--erreur {
  border-left-color: var(--alerte);
  background: var(--alerte-fond);
}

.formulaire__confidentialite {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--encre-douce);
}

/* Pied de page */

.pied {
  background: var(--encre);
  color: var(--sur-nuit);
  padding-block: 2.8rem;
  font-size: var(--t-petit);
}

.pied__grille {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem 3rem;
}

.pied p {
  color: var(--sur-nuit-doux);
}

.pied .pied__titre {
  font-family: var(--titre);
  font-size: 1.15rem;
  line-height: 1.25;
  margin-bottom: 0.4rem;
  color: var(--sur-nuit);
}

.pied a {
  color: var(--sur-nuit);
}

.pied :focus-visible {
  outline-color: var(--surligneur);
}

.pied__credits {
  display: grid;
  gap: 0.5rem;
}

/* Écrans moyens et petits */

@media (max-width: 1080px) {
  .barre__menu {
    display: inline-block;
  }

  .barre__nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
    padding-block: 0.6rem 0.9rem;
  }

  .barre__nav.est-ouvert {
    display: flex;
  }

  .barre__liens {
    flex-direction: column;
    gap: 0.3rem;
    font-size: var(--t-base);
  }

  .conjugaison__formes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 1rem;
  }

  .conjugaison__formes li:nth-child(4) {
    border-left: 0;
    padding-left: 0;
  }

  .partie,
  .chansons__grille,
  .auteur__grille,
  .intention__grille,
  .commander__grille {
    grid-template-columns: minmax(0, 1fr);
  }

  .partie__image {
    max-width: 30rem;
  }
}

@media (max-width: 760px) {
  html {
    font-size: 106.25%;
  }

  .ouverture {
    grid-template-columns: minmax(0, 1fr);
  }

  .ouverture__texte {
    padding-inline: var(--gouttiere);
  }

  .ouverture__vitrine {
    order: -1;
    padding-block: 2.5rem;
  }

  .couverture {
    width: min(14rem, 62%);
  }

  .publics {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }

  .public {
    border-left: 0;
    padding-inline: 0;
    padding-top: 2rem;
    border-top: 1px solid var(--trait);
  }

  .public:first-child {
    border-top: 0;
    padding-top: 0;
  }

  .pied__grille {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 560px) {
  .conjugaison__formes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .conjugaison__formes li:nth-child(4) {
    border-left: 1px solid var(--trait);
    padding-left: 1rem;
  }

  .conjugaison__formes li:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }

  .programme > div {
    grid-template-columns: minmax(0, 1fr);
  }

  .questions,
  .programme--simple,
  .chansons__liste,
  .formulaire__rangee {
    grid-template-columns: minmax(0, 1fr);
  }
}

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

  .ouverture__vitrine::before,
  .ouverture__vitrine::after {
    animation: none;
  }

  .bouton {
    transition: none;
  }
}

@media print {
  .barre,
  .ouverture__actions {
    display: none;
  }
}