/* Page de dépôt SV. Polices système uniquement (la CSP n'autorise aucune ressource externe),
   icônes SVG intégrées, thème clair et sombre. */
:root {
  --fond: #f4f2ee;
  --fond-haut: #e9ece9;
  --carte: #ffffff;
  --encre: #17202b;
  --encre-2: #4a5462;
  --doux: #7a828d;
  --trait: #e2e0da;
  --trait-fort: #c9c6be;
  --accent: #1d4ed8;
  --accent-fonce: #1e3a8a;
  --accent-doux: #e8eefc;
  --ok: #15803d;
  --ok-doux: #e6f4ea;
  --alerte: #b45309;
  --alerte-doux: #fdf3e2;
  --erreur: #b91c1c;
  --ombre: 0 1px 2px rgb(23 32 43 / .05), 0 8px 24px -12px rgb(23 32 43 / .12);
  --rayon: 16px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fond: #0f1318;
    --fond-haut: #141b24;
    --carte: #171d25;
    --encre: #e8ebef;
    --encre-2: #b3bac4;
    --doux: #8a929d;
    --trait: #262e39;
    --trait-fort: #384252;
    --accent: #7aa2ff;
    --accent-fonce: #a9c1ff;
    --accent-doux: #1a2742;
    --ok: #5fcf86;
    --ok-doux: #15291d;
    --alerte: #f0b35a;
    --alerte-doux: #2e2414;
    --erreur: #f2847d;
    --ombre: 0 1px 2px rgb(0 0 0 / .3), 0 10px 30px -14px rgb(0 0 0 / .6);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, var(--fond-haut) 0, var(--fond) 340px) no-repeat, var(--fond);
  color: var(--encre);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
.sprites { display: none; }
.ico { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round; }
.ico.grande { width: 44px; height: 44px; stroke-width: 1.5; }
h1, h2 { margin: 0; letter-spacing: -.015em; line-height: 1.2; }
p { margin: 0; }
a { color: inherit; }
[hidden] { display: none !important; }

.page { max-width: 760px; margin: 0 auto; padding: 0 20px 48px; }

/* Bandeau */
.bandeau { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 22px 0 8px; }
.marque { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -.01em; }
.monogramme {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
  background: var(--encre); color: var(--carte); font-size: 13px; font-weight: 700; letter-spacing: .04em;
}
.chiffrement {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px 5px 9px; border-radius: 999px;
  background: var(--ok-doux); color: var(--ok); font-size: 13px; font-weight: 550;
}
.chiffrement .ico { width: 15px; height: 15px; stroke-width: 2; }

main { display: flex; flex-direction: column; gap: 18px; padding-top: 26px; }
#depot { display: flex; flex-direction: column; gap: 18px; }

/* Introduction */
.intro { display: flex; flex-direction: column; gap: 12px; padding: 4px 2px 6px; }
.surtitre { color: var(--accent); font-size: 13.5px; font-weight: 600; letter-spacing: .01em; }
.intro h1 { font-size: clamp(26px, 4.4vw, 34px); font-weight: 700; max-width: 22ch; }
.chapo { color: var(--encre-2); font-size: 17px; max-width: 58ch; }
.chapo strong { color: var(--encre); font-weight: 600; }
.garanties { list-style: none; margin: 8px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.garanties li { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border-radius: 12px;
  background: color-mix(in srgb, var(--carte) 70%, transparent); border: 1px solid var(--trait); font-size: 13.5px; color: var(--encre-2); }
.garanties .ico { color: var(--accent); margin-top: 1px; }
.garanties b { display: block; color: var(--encre); font-weight: 600; font-size: 14px; }

/* Étapes */
.etapes { list-style: none; margin: 4px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; counter-reset: none; }
.etapes li { display: flex; align-items: center; gap: 8px; padding-top: 10px; border-top: 3px solid var(--trait);
  color: var(--doux); font-size: 13.5px; font-weight: 550; transition: color .2s, border-color .2s; }
.etapes li span { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%;
  border: 1.5px solid currentColor; font-size: 12px; font-weight: 650; }
.etapes li.actif { color: var(--accent); border-top-color: var(--accent); }
.etapes li.fait { color: var(--ok); border-top-color: var(--ok); }
.etapes li.fait span { background: var(--ok); border-color: var(--ok); color: var(--carte); }

/* Cartes */
.carte { background: var(--carte); border: 1px solid var(--trait); border-radius: var(--rayon); box-shadow: var(--ombre);
  padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.carte-tete { display: flex; align-items: center; gap: 10px; }
.carte-tete .ico { color: var(--accent); }
.carte h2 { font-size: 18px; font-weight: 650; }
.aide { color: var(--encre-2); font-size: 14.5px; }

/* Code de vérification */
.saisie { display: grid; gap: 6px; }
.saisie-titre { font-size: 13.5px; font-weight: 600; color: var(--encre-2); }
.saisie input { font-family: var(--mono); font-size: clamp(22px, 5.5vw, 30px); font-weight: 600; letter-spacing: .14em;
  text-align: center; text-transform: uppercase; padding: 14px 12px; border-radius: 12px; width: 100%;
  background: var(--accent-doux); color: var(--accent-fonce); border: 1px dashed color-mix(in srgb, var(--accent) 45%, transparent); }
.saisie input:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 40%, transparent); outline-offset: 2px; }
.saisie input::placeholder { color: color-mix(in srgb, var(--accent-fonce) 35%, transparent); }
.code-etat { font-weight: 550; font-size: 14.5px; min-height: 1.4em; }
.code-etat:empty { display: none; }
.verification.validee .saisie input { border: 1px solid var(--ok); background: var(--ok-doux); color: var(--ok); }
.verification.validee .code-etat { color: var(--ok); }
.verification.faux .saisie input { border: 1px solid var(--erreur); }
.verification.faux .code-etat { color: var(--erreur); }
.avertissement { display: flex; align-items: center; gap: 8px; color: var(--alerte); font-size: 13.5px; }
.avertissement .ico { width: 17px; height: 17px; }
.verification.validee .avertissement, .verification.faux .avertissement { display: none; }

/* Zone de dépôt */
.zone { position: relative; display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center;
  padding: 34px 18px; border: 1.5px dashed var(--trait-fort); border-radius: 14px; cursor: pointer;
  background: repeating-linear-gradient(135deg, transparent 0 10px, color-mix(in srgb, var(--trait) 35%, transparent) 10px 11px);
  transition: border-color .15s, background-color .15s, transform .15s; }
.zone:hover, .zone:focus-within { border-color: var(--accent); background-color: var(--accent-doux); }
.zone.survol { border-color: var(--accent); background-color: var(--accent-doux); transform: scale(1.01); }
.zone-ico { width: 34px; height: 34px; padding: 8px; box-sizing: content-box; border-radius: 50%;
  background: var(--accent-doux); color: var(--accent); margin-bottom: 8px; }
.zone-titre { font-size: 17px; font-weight: 650; }
.zone-sous { color: var(--encre-2); }
.zone-sous u { color: var(--accent); text-underline-offset: 3px; }
.zone-types { color: var(--doux); font-size: 13px; margin-top: 6px; }
.zone input { position: absolute; inset: 0; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.zone:has(input:focus-visible) { outline: 3px solid color-mix(in srgb, var(--accent) 40%, transparent); outline-offset: 3px; }
.verrou { display: none; align-items: center; justify-content: center; gap: 8px; color: var(--doux); font-size: 13.5px; }
.verrou .ico { width: 16px; height: 16px; }
.verrouille .zone { opacity: .45; cursor: not-allowed; filter: saturate(.4); }
.verrouille .zone:hover { border-color: var(--trait-fort); background-color: transparent; }
.verrouille .verrou { display: flex; }

/* Liste des fichiers */
.liste { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.liste:empty { display: none; }
.fichier { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px;
  padding: 10px 12px; border: 1px solid var(--trait); border-radius: 12px; }
.ext { display: grid; place-items: center; width: 40px; height: 44px; border-radius: 8px; background: var(--accent-doux);
  color: var(--accent-fonce); font: 650 10.5px/1 var(--mono); letter-spacing: .02em; text-transform: uppercase; }
.fichier-corps { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.fichier-nom { font-weight: 550; font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fichier-info { color: var(--doux); font-size: 12.5px; }
.barre { height: 4px; border-radius: 99px; background: var(--trait); overflow: hidden; }
.barre i { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--accent); transition: width .25s ease; }
.fichier.envoye .barre i { background: var(--ok); }
.fichier.echec .barre i { background: var(--erreur); }
.fichier.envoye .fichier-info { color: var(--ok); }
.fichier.echec .fichier-info, .fichier.refuse .fichier-info { color: var(--erreur); }
.fichier.refuse { border-style: dashed; }
.statut { width: 30px; height: 30px; display: grid; place-items: center; }
.statut .ico { width: 22px; height: 22px; }
.fichier.envoye .statut { color: var(--ok); }
.retirer { width: 30px; height: 30px; display: grid; place-items: center; border: 0; border-radius: 8px;
  background: transparent; color: var(--doux); cursor: pointer; }
.retirer:hover { background: var(--trait); color: var(--encre); }
.retirer .ico { width: 17px; height: 17px; }

/* Action */
.action { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 4px; }
.total { color: var(--encre-2); font-size: 14px; }
.bouton { display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 13px 22px;
  border: 0; border-radius: 12px; background: var(--accent); color: #fff; font: inherit; font-weight: 600;
  cursor: pointer; transition: background .15s, transform .1s, box-shadow .15s;
  box-shadow: 0 1px 0 rgb(255 255 255 / .15) inset, 0 6px 16px -8px var(--accent); }
@media (prefers-color-scheme: dark) { .bouton { color: #0b1220; } }
.bouton:hover { background: var(--accent-fonce); }
.bouton:active { transform: translateY(1px); }
.bouton:disabled { opacity: .5; cursor: default; box-shadow: none; }
.bouton:focus-visible, .retirer:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 40%, transparent); outline-offset: 2px; }
.bouton.secondaire { background: transparent; color: var(--encre); border: 1px solid var(--trait-fort); box-shadow: none; }
.bouton.secondaire:hover { background: var(--fond); }
.bouton .ico { width: 18px; height: 18px; stroke-width: 2; }

/* Reçu */
.recu { border-color: color-mix(in srgb, var(--ok) 35%, var(--trait)); }
.recu-tete { display: flex; align-items: center; gap: 14px; }
.ico.ok { color: var(--ok); }
.recu > p { color: var(--encre-2); font-size: 14.5px; }
.recu-lignes { list-style: none; margin: 0; padding: 0; border: 1px solid var(--trait); border-radius: 12px; overflow: hidden; }
.recu-lignes li { padding: 12px 14px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 16px; }
.recu-lignes li + li { border-top: 1px solid var(--trait); }
.recu-nom { font-weight: 600; font-size: 14.5px; overflow-wrap: anywhere; }
.recu-taille { color: var(--doux); font-size: 13px; text-align: right; }
.recu-champ { grid-column: 1 / -1; display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 8px; font-size: 12.5px; }
.recu-champ span { color: var(--doux); }
.recu-champ code { font-family: var(--mono); overflow-wrap: anywhere; color: var(--encre-2); }
.recu-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* États */
.etat-vide { align-items: center; text-align: center; padding: 48px 28px; gap: 12px; }
.etat-vide p { color: var(--encre-2); max-width: 46ch; }
.ico.alerte { color: var(--alerte); }

/* Pied de page */
.pied { margin-top: 28px; display: flex; flex-direction: column; gap: 4px; color: var(--doux); font-size: 12.5px; text-align: center; }
.pied a { text-underline-offset: 2px; }

@media (max-width: 640px) {
  .page { padding: 0 16px 36px; }
  .garanties { grid-template-columns: minmax(0, 1fr); }
  .carte { padding: 18px; }
  .etapes li { font-size: 0; gap: 0; justify-content: center; }
  .etapes li span { font-size: 12px; }
  .action { flex-direction: column; align-items: stretch; }
  .total { text-align: center; }
  .chiffrement { font-size: 0; padding: 7px; gap: 0; }
  .recu-champ { grid-template-columns: minmax(0, 1fr); gap: 0; }
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

@media print {
  body { background: #fff; color: #000; }
  .bandeau .chiffrement, .intro, .etapes, .verification, .fichiers, .recu-actions, .pied a { display: none !important; }
  .carte { box-shadow: none; border-color: #bbb; }
}