:root {
  --nuit: #0A0A12;
  --papier: #F6F6FA;
  --violet-400: #9A83FF;
  --violet-500: #7C5CFF;
  --violet-600: #6440F5;
  --violet-700: #4F2FD6;
  --bleu-profond: var(--violet-600);
  --vert-accent: var(--violet-500);
  --encre-verte: var(--nuit);
  --texte: #2E2E40;
  --texte-soft: #5C5C74;
  --gris-fond: var(--papier);
  --gris-panneau: #D6D6E2;
  --display: 'Space Grotesk Variable', 'Space Grotesk', 'Inter Variable', Inter, system-ui, sans-serif;
  --sans: 'Inter Variable', Inter, system-ui, -apple-system, 'Segoe UI', sans-serif;
}

.page-auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(900px 500px at 15% 0%, rgba(124, 92, 255, 0.35), transparent 60%), radial-gradient(700px 400px at 90% 100%, rgba(34, 211, 238, 0.12), transparent 60%), var(--nuit);
  font-family: var(--sans);
  padding: 20px;
}

.auth-carte {
  background: #fff;
  border-radius: 14px;
  padding: 34px 36px;
  width: 100%;
  max-width: 430px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  color: var(--texte);
}

.auth-marque {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.auth-marque .logo {
  height: 34px;
  width: auto;
  display: block;
}

.auth-marque .nom {
  font-family: var(--display);
  font-size: 17px;
  font-weight: 600;
  color: var(--nuit);
}

.auth-marque .sous {
  font-size: 10px;
  color: var(--texte-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.auth-carte h1 {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--nuit);
  margin: 0 0 6px;
}

.auth-carte .champ {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.auth-carte .champ label {
  font-size: 12px;
  font-weight: 600;
  color: var(--bleu-profond);
}

.auth-carte input {
  font-family: inherit;
  font-size: 14px;
  padding: 9px 11px;
  border: 1px solid var(--gris-panneau);
  border-radius: 8px;
  width: 100%;
}

.auth-carte input:focus {
  outline: 2px solid var(--bleu-profond);
  outline-offset: 0;
}

.auth-carte .btn-plein {
  width: 100%;
  background: var(--bleu-profond);
  color: #fff;
  border: 0;
  border-radius: 22px;
  padding: 11px;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 6px;
}

.auth-carte .btn-plein:hover {
  filter: brightness(1.08);
}

.auth-carte .btn-plein:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-carte .aide {
  font-size: 12.5px;
  color: var(--texte-soft);
  margin: 0 0 16px;
}

.auth-carte .aide.centre {
  text-align: center;
}

.auth-carte a {
  color: var(--bleu-profond);
  font-weight: 600;
}

.auth-carte .erreur {
  color: #EF4444;
  font-size: 13px;
  font-weight: 600;
  margin: 8px 0;
}

.qr-placeholder {
  background: var(--gris-fond);
  border: 1px dashed var(--gris-panneau);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
  margin-bottom: 12px;
  word-break: break-all;
}

@media (max-width: 480px) {
  .page-auth {
    padding: 12px;
    place-items: start center;
  }
  .auth-carte {
    padding: 22px 18px;
    border-radius: 12px;
  }
  .auth-carte input,
  .auth-carte select {
    font-size: 16px;
  }
}