:root {
  --violet: #5b3494;
  --violet-fonce: #4b2a7b;
  --violet-clair: #dccbf5;
  --orange: #d9622b;
  --fond: #f5f2ec;
  --carte: #fffdf8;
  --bord: #e2dccf;
  --texte: #2e3646;
  --texte-doux: #5a6272;
  --rouge: #c0392b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.4;
  -webkit-text-size-adjust: 100%;
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px calc(32px + env(safe-area-inset-bottom));
  min-height: 100vh;
}

.ecran[hidden] { display: none; }

.surtitre {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--violet);
}

h1 { margin: 0 0 20px; font-size: 28px; line-height: 1.2; color: var(--violet-fonce); }

.consignes {
  margin: 0 0 24px;
  padding: 16px 20px 16px 36px;
  background: var(--carte);
  border: 1px solid var(--bord);
  border-radius: 14px;
}
.consignes li { margin: 6px 0; }

.formulaire { display: flex; flex-direction: column; gap: 14px; }
.formulaire label { display: flex; flex-direction: column; gap: 6px; font-weight: 700; }
.formulaire input {
  font: inherit;
  font-weight: 400;
  padding: 14px 16px;
  border: 2px solid var(--bord);
  border-radius: 12px;
  background: #fff;
}
.formulaire input:focus { outline: none; border-color: var(--violet); }

.bouton-principal {
  font: inherit;
  font-weight: 700;
  font-size: 20px;
  padding: 16px;
  border: 0;
  border-radius: 14px;
  background: var(--violet);
  color: #fff;
  cursor: pointer;
}
.bouton-principal:disabled { opacity: .5; cursor: default; }

.erreur { margin: 0; color: var(--rouge); font-weight: 700; }

.entete { display: flex; justify-content: space-between; align-items: baseline; }
.progression { margin: 0; font-weight: 700; color: var(--texte-doux); }
.chrono { margin: 0; font-size: 28px; font-weight: 800; color: var(--violet); font-variant-numeric: tabular-nums; }
.chrono.urgent { color: var(--orange); }

.barre { height: 8px; margin: 10px 0 20px; background: var(--bord); border-radius: 4px; overflow: hidden; }
.barre-remplie { height: 100%; width: 100%; background: var(--violet); transition: width .25s linear; }
.barre-remplie.urgent { background: var(--orange); }

.alerte {
  margin: 0 0 16px;
  padding: 12px 16px;
  background: #fbe0cf;
  border-radius: 12px;
  color: #7a2f0e;
  font-weight: 700;
}

.question { margin: 0 0 20px; font-size: 24px; line-height: 1.3; }

.reponses { display: flex; flex-direction: column; gap: 12px; }
.reponse {
  font: inherit;
  text-align: left;
  padding: 18px 20px;
  min-height: 64px;
  background: var(--carte);
  border: 2px solid var(--bord);
  border-radius: 14px;
  color: var(--texte);
  cursor: pointer;
}
.reponse:active, .reponse.choisie { border-color: var(--violet); background: var(--violet-clair); }
.reponse:disabled { cursor: default; }

.texte-fin { font-size: 20px; }