:root {
  --vert: #06b278; --vert-fonce: #048a5d; --vert-clair: #e6f8f1;
  --bleu: #0056b3; --encre: #1d2b36; --gris: #5f6f7a; --bord: #dfe7e4;
  --rouge: #c0392b; --fond: #f3f6f5;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--encre); background: var(--fond); line-height: 1.5;
}
.conteneur { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: 32px 20px; }
.pied { text-align: center; color: var(--gris); font-size: 13px; padding: 18px; }

body.fond-degrade {
  background:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px) 0 0 / 64px 26px,
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px) 0 0 / 64px 26px,
    linear-gradient(135deg, var(--vert) 0%, #04977a 45%, var(--bleu) 100%);
}
body.fond-sombre { background: linear-gradient(135deg, #1d2b36, #0d3b5c); }
body.fond-degrade .pied, body.fond-sombre .pied { color: rgba(255,255,255,.75); }
body.fond-degrade .conteneur, body.fond-sombre .conteneur { display: grid; place-items: center; }

.carte {
  background: #fff; border-radius: 20px; padding: 26px 28px; margin-bottom: 22px;
  box-shadow: 0 2px 6px rgba(16,40,30,.06), 0 8px 24px rgba(16,40,30,.08);
}
.carte h2 { margin-top: 0; }
.connexion { width: 100%; max-width: 430px; text-align: center; padding: 36px 32px; }
.connexion h1 { margin: 10px 0 4px; font-size: 26px; }
.connexion form { text-align: left; margin-top: 18px; }
.logo-rond {
  width: 72px; height: 72px; margin: 0 auto; border-radius: 50%;
  display: grid; place-items: center; font-size: 34px; background: var(--vert-clair);
}
.sous { color: var(--gris); margin: 0; }
.petit, small { font-size: 13px; color: var(--gris); }
.muet { color: var(--gris); }
label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }
input, select {
  width: 100%; font: inherit; font-size: 16px; padding: 12px 14px;
  border: 2px solid var(--bord); border-radius: 12px; background: #fafcfb;
}
input:focus, select:focus { outline: none; border-color: var(--vert); box-shadow: 0 0 0 4px rgba(6,178,120,.15); background: #fff; }
#code, input.gros { text-align: center; font-size: 24px; letter-spacing: .14em; font-weight: 700; text-transform: uppercase; }

.btn {
  display: inline-block; font: inherit; font-weight: 600; font-size: 15px; cursor: pointer;
  padding: 10px 18px; border-radius: 12px; border: 2px solid var(--bord);
  background: #fff; color: var(--encre); text-decoration: none; transition: all .15s;
}
.btn:hover { border-color: var(--vert); color: var(--vert-fonce); }
.btn.plein { background: var(--vert); border-color: var(--vert); color: #fff; width: 100%; margin-top: 18px; padding: 14px; font-size: 16px; }
.btn.plein:hover { background: var(--bleu); border-color: var(--bleu); color: #fff; }
.petit-btn { padding: 6px 10px; font-size: 13px; border-radius: 9px; }
.petit-btn.plein { width: auto; margin-top: 10px; padding: 8px 14px; font-size: 14px; }
.danger:hover { border-color: var(--rouge); color: var(--rouge); }
.lien-danger { border-color: transparent; background: none; }
.lien-danger:hover { border-color: var(--rouge); }

.alerte { padding: 12px 16px; border-radius: 12px; margin: 14px 0; text-align: left; }
.alerte.erreur { background: #fdecea; color: #8e2b20; }
.alerte.info { background: #e8f0fb; color: #0b3d75; }
.alerte.succes { background: var(--vert-clair); color: #035c3e; }
.alerte .btn { margin-left: 8px; }

code { background: #eef3f1; padding: 2px 6px; border-radius: 6px; }
.code-acces { font-size: 17px; font-weight: 700; letter-spacing: .08em; background: #fff; border: 2px dashed var(--vert); padding: 3px 10px; }

/* Administration */
.barre-admin {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  margin-bottom: 20px; padding: 14px 20px; border-radius: 16px; color: #fff;
  background: linear-gradient(135deg, var(--vert), var(--bleu));
}
.barre-admin a { color: #fff; }
.barre-admin .muet { color: rgba(255,255,255,.8); }
.grille-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 18px; align-items: end; }
.grille-form .bouton { grid-column: 1 / -1; }
.grille-form .btn.plein { max-width: 380px; }
@media (max-width: 720px) { .grille-form { grid-template-columns: 1fr; } }

.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--gris); padding: 8px 10px; border-bottom: 2px solid var(--bord); }
td { padding: 12px 10px; border-bottom: 1px solid var(--bord); vertical-align: top; }
tr.terminee td, tr.cloturee td { opacity: .6; }
.centre { text-align: center; }
.actions { white-space: nowrap; }
.actions .btn, .actions form.inline { margin: 0 2px 4px 0; }
form.inline { display: inline; }
details.modif { display: inline-block; vertical-align: top; }
details.modif[open] { display: block; background: #f7faf9; padding: 10px; border-radius: 10px; margin: 6px 0; white-space: normal; }
details.modif input { font-size: 14px; padding: 6px 8px; }
details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }
details.code summary { color: var(--bleu); text-decoration: underline; font-size: 13px; }

.badge { display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.badge.en_cours { background: var(--vert-clair); color: var(--vert-fonce); }
.badge.a_venir { background: #e8f0fb; color: var(--bleu); }
.badge.terminee { background: #eee; color: #666; }
.badge.cloturee { background: #fdecea; color: var(--rouge); }

.liste-formations { list-style: none; padding: 0; margin: 0; }
.liste-formations li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--bord); }

/* Affiche à imprimer */
.page-affiche { background: #fff; }
.affiche { text-align: center; padding: 30px 10px; }
.affiche .surtitre { text-transform: uppercase; letter-spacing: .12em; color: var(--vert-fonce); font-weight: 700; }
.affiche h1 { font-size: 42px; margin: 6px 0 36px; }
.affiche .etape { font-size: 22px; color: var(--gris); margin: 26px 0 6px; }
.affiche .url { font-size: 34px; font-weight: 700; color: var(--bleu); margin: 0; }
.affiche .code-geant {
  display: inline-block; font-size: 64px; font-weight: 800; letter-spacing: .1em; margin: 6px 0;
  padding: 14px 34px; border: 5px dashed var(--vert); border-radius: 24px; font-family: Consolas, monospace;
}
.affiche .validite { font-size: 18px; color: var(--gris); margin-top: 30px; }
@media print { .pied { display: none; } }