/* Mise en page de l'application élève : mobile first (360 px), puis
   tablette (600 px) et ordinateur (1024 px). */

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--fond);
  color: var(--texte);
  font-family: var(--police);
  font-size: calc(var(--taille-texte-base) * var(--echelle-taille));
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
}

#app {
  min-height: 100vh;
  padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px));
}

.ecran {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
}

/* Boutons */
.bouton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--cible-tactile-min);
  padding: 10px 20px;
  border: none;
  border-radius: var(--rayon);
  font-family: inherit;
  font-size: 1em;
  font-weight: 600;
  cursor: pointer;
}

.bouton-principal {
  width: 100%;
  background: var(--couleur-principale);
  color: #FFFFFF;
}

.bouton-secondaire {
  background: var(--surface);
  color: var(--couleur-principale);
  border: 1px solid var(--bordure);
}

.bouton:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Champs de formulaire */
.champ {
  display: block;
  width: 100%;
  min-height: var(--cible-tactile-min);
  padding: 10px 12px;
  margin-bottom: 12px;
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  background: var(--surface);
  color: var(--texte);
  font-family: inherit;
  font-size: 1em;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

/* Cartes */
.carte {
  background: var(--surface);
  border-radius: var(--rayon);
  box-shadow: var(--ombre-legere);
  padding: 16px;
  margin-bottom: 16px;
}

/* Écran Bienvenue (E1) */
.bienvenue-logo {
  text-align: center;
  margin: 24px 0 8px;
}

.bienvenue-slogan {
  text-align: center;
  color: var(--texte-doux);
  margin-bottom: 24px;
}

.case-consentement {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 16px 0;
}

.case-consentement input {
  width: 22px;
  height: 22px;
  margin-top: 2px;
  flex-shrink: 0;
}

/* Écran Accueil (E2) */
.accueil-entete {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.serie-jours {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--couleur-accent);
  color: #2A2000;
  border-radius: 999px;
  padding: 4px 12px;
  font-weight: 700;
  font-size: 0.9em;
}

.liste-schemas {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.carte-schema {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  padding: 12px;
  cursor: pointer;
}

.carte-schema img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--fond-clair);
}

.carte-schema .titre-schema {
  font-weight: 700;
}

.carte-schema .medaille-resume {
  margin-left: auto;
  font-size: 1.4em;
}

/* Navigation du bas (fixe sur mobile) */
.nav-bas[hidden] {
  display: none;
}

.nav-bas {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--bordure);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  z-index: 10;
}

.nav-bas button {
  flex: 1;
  min-height: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: none;
  border: none;
  color: var(--texte-doux);
  font-family: inherit;
  font-size: 0.75em;
  cursor: pointer;
}

.nav-bas button[aria-current="page"] {
  color: var(--couleur-principale);
  font-weight: 700;
}

.nav-bas .icone-nav {
  font-size: 1.3em;
}

/* Écran Schéma (E3) */
.barre-maitrise {
  margin: 12px 0 20px;
}

.barre-maitrise .fond-barre {
  background: var(--bordure);
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
}

.barre-maitrise .remplissage {
  height: 100%;
  background: var(--couleur-reussite);
  border-radius: 999px;
}

.grille-niveaux {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}

@media (min-width: 600px) {
  .grille-niveaux {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tuile-niveau {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 8px;
  border-radius: var(--rayon);
  border: 1px solid var(--bordure);
  background: var(--surface);
  cursor: pointer;
  text-align: center;
}

.tuile-niveau[data-verrouille="true"] {
  opacity: 0.5;
}

.tuile-niveau .numero-niveau {
  font-weight: 700;
  font-size: 1.1em;
}

.message-info {
  background: var(--fond-clair);
  border-radius: var(--rayon);
  padding: 12px;
  margin-top: 12px;
  color: var(--texte-doux);
  font-size: 0.9em;
}

/* Visionneuse de schéma : pastilles + zoom */
.visionneuse-schema {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--rayon);
  background: var(--fond-clair);
  touch-action: none;
}

.visionneuse-schema .plan-zoom {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform-origin: 0 0;
  will-change: transform;
}

.visionneuse-schema img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  pointer-events: none;
}

.pastille {
  position: absolute;
  width: var(--cible-tactile-min);
  height: var(--cible-tactile-min);
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.pastille .rond {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--couleur-principale);
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
  box-shadow: var(--ombre-legere);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85em;
}

.pastille[data-active="true"] .rond {
  animation: pulsation 1.4s ease-in-out infinite;
}

@keyframes pulsation {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

@media (prefers-reduced-motion: reduce) {
  .pastille[data-active="true"] .rond {
    animation: none;
  }
}

/* Point de rupture ordinateur : deux colonnes, nav en haut au lieu du bas. */
@media (min-width: 1024px) {
  #app {
    padding-bottom: 0;
  }

  .nav-bas {
    position: static;
    border-top: none;
    border-bottom: 1px solid var(--bordure);
    max-width: 1100px;
    margin: 0 auto;
    justify-content: center;
    gap: 24px;
  }

  .nav-bas button {
    flex: none;
    min-width: 96px;
  }
}