:root {
  --encre: #1a1a1a; --gris: #6b6b6b; --pale: #e7e7e7; --fond: #f6f6f4; --carte: #ffffff;
  --vert: #1e8a4c; --rouge: #c0392b; --orange: #c77700;
  color-scheme: light;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--fond); color: var(--encre);
  font: 15px/1.45 -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 1040px; margin: 0 auto; padding: 24px 16px 60px; }
header.barre { display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  background: var(--carte); border-bottom: 1px solid var(--pale); }
header.barre h1 { font-size: 18px; margin: 0; flex: 1; }
header.barre a { color: var(--encre); text-decoration: none; }
h2 { font-size: 17px; margin: 28px 0 10px; }
h3 { font-size: 15px; margin: 0 0 6px; }
.carte { background: var(--carte); border: 1px solid var(--pale); border-radius: 12px;
  padding: 16px; margin: 10px 0; }
.gris { color: var(--gris); } .petit { font-size: 13px; }
.ligne { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ligne > .pousse { flex: 1; }
table { width: 100%; border-collapse: collapse; }
td, th { text-align: left; padding: 7px 6px; border-top: 1px solid var(--pale); vertical-align: top; }
th { font-weight: 600; font-size: 13px; color: var(--gris); border-top: 0; }
input[type=text], input[type=password], input[type=email], textarea, select {
  font: inherit; padding: 7px 9px; border: 1px solid #c9c9c9; border-radius: 8px;
  background: #fff; min-width: 0; }
textarea { width: 100%; }
button, .bouton { font: inherit; padding: 7px 13px; border-radius: 8px; cursor: pointer;
  border: 1.5px solid var(--encre); background: #fff; color: var(--encre); text-decoration: none;
  display: inline-block; }
button.plein, .bouton.plein { background: var(--encre); color: #fff; }
button.discret { border-color: #c9c9c9; color: var(--gris); padding: 4px 9px; font-size: 13px; }
button.danger { border-color: var(--rouge); color: var(--rouge); }
form.inline { display: inline; }
.message { padding: 10px 14px; border-radius: 10px; margin: 8px 0; }
.message.ok { background: #e8f5ec; color: var(--vert); }
.message.erreur { background: #fbeaea; color: var(--rouge); }
.pastille { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px;
  border: 1px solid currentColor; }
.pastille.vert { color: var(--vert); } .pastille.rouge { color: var(--rouge); }
.pastille.gris { color: var(--gris); }
code, .code { font-family: ui-monospace, Menlo, monospace; font-size: 13px;
  background: #f0f0ee; padding: 1px 5px; border-radius: 5px; word-break: break-all; }
.code-grand { font: 600 26px ui-monospace, Menlo, monospace; letter-spacing: 2px; }
pre { background: #111; color: #ddd; padding: 10px; border-radius: 8px; overflow: auto;
  font-size: 12px; max-height: 260px; }
details > summary { cursor: pointer; color: var(--gris); margin: 6px 0; }
.grille { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; }
label.champ { display: flex; flex-direction: column; gap: 3px; font-size: 13px; color: var(--gris); }
label.champ input, label.champ select { color: var(--encre); font-size: 15px; }

/* Pages publiques (téléphone des élèves) */
.public main { max-width: 520px; }
.public .appli { text-align: center; padding: 28px 18px; }
.public .appli h1 { font-size: 24px; margin: 0 0 4px; }
.public .gros { font-size: 18px; padding: 14px 22px; border-radius: 12px; width: 100%; }
.public ol { padding-left: 20px; } .public li { margin: 6px 0; }
.public .etape h3 { display: flex; align-items: center; gap: 10px; font-size: 17px; }
.public .numero { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px;
  border-radius: 50%; background: var(--encre); color: #fff; font-size: 15px; flex: none; }
.public .etape .code-grand { text-align: center; margin: 10px 0; }
.public .gros { display: block; text-align: center; }