/* Anmeldeseite – „Tafel & Heft“: Tafelgrün, Heftlinien, Rotstift für Fehler */
:root {
  --tafel: #1F5C4A; --tafel-dark: #174536; --linie: #2F5E9E; --rot: #B3261E; --marker: #F4D35E;
  --ink: #1d2a24; --muted: #56655e; --paper: #fbfcfa; --bg: #e9eeeb; --line: #d5ddd8; --field: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #e6ece8; --muted: #a6b5ad; --paper: #1b2421; --bg: #121816; --line: #34413b; --field: #222d29; --tafel: #3f8f74; --tafel-dark: #2d6b56; --rot: #ff8a80; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: grid; place-items: start center; padding: 6vh 16px 32px;
  font: 16px/1.5 "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: var(--bg);
}
.sheet {
  width: 100%; max-width: 440px; background: var(--paper); border: 1px solid var(--line); border-radius: 14px;
  padding: 28px 28px 20px; position: relative; overflow: hidden;
  background-image: repeating-linear-gradient(to bottom, transparent 0 31px, color-mix(in srgb, var(--linie) 9%, transparent) 31px 32px);
  background-position: 0 84px; box-shadow: 0 1px 0 var(--line);
}
.sheet::before { content: ""; position: absolute; left: 22px; top: 0; bottom: 0; width: 1px; background: color-mix(in srgb, var(--rot) 30%, transparent); }
.brand { display: flex; gap: 14px; align-items: center; margin: 0 0 18px 14px; }
.mark { width: 44px; height: 44px; border-radius: 10px; background: var(--tafel); color: #fff; display: grid; place-items: center; font-weight: 700; letter-spacing: .5px; box-shadow: inset 0 -4px 0 var(--marker); }
.school { margin: 0; font-weight: 650; font-size: 18px; line-height: 1.2; }
.sub { margin: 0; color: var(--muted); font-size: 13px; }
.view { margin-left: 14px; }
h1 { font-size: 24px; margin: 4px 0 12px; font-weight: 650; }
.lead { margin: 0 0 14px; color: var(--ink); }
label { display: block; font-size: 14px; font-weight: 600; margin: 0 0 12px; }
input[type=email], input[type=password], input:not([type]), input[name=code], input[name=name] {
  display: block; width: 100%; margin-top: 4px; padding: 10px 12px; font: inherit; color: var(--ink); background: var(--field);
  border: 1px solid var(--line); border-radius: 8px;
}
input:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid color-mix(in srgb, var(--linie) 55%, transparent); outline-offset: 2px; }
input.code { font-size: 22px; letter-spacing: 6px; text-align: center; font-variant-numeric: tabular-nums; }
.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; }
.check input { margin-top: 4px; }
button { font: inherit; cursor: pointer; border-radius: 8px; padding: 10px 16px; border: 1px solid var(--tafel); }
button:disabled { opacity: .55; cursor: default; }
.pri { width: 100%; background: var(--tafel); color: #fff; font-weight: 600; margin-top: 4px; }
.pri:hover:not(:disabled) { background: var(--tafel-dark); }
.sec { background: transparent; color: var(--tafel); }
.row { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 12px; }
.links { display: flex; justify-content: space-between; gap: 12px; margin: 14px 0 0; font-size: 14px; }
a { color: var(--linie); }
@media (prefers-color-scheme: dark) { a { color: #9cc0f0; } }
.hint { font-size: 13px; color: var(--muted); margin: -6px 0 12px; }
.error { color: var(--rot); font-size: 14px; min-height: 1px; margin: 0 0 8px; font-weight: 600; }
.error:empty { margin: 0; }
.notice { margin: 0 0 16px 14px; padding: 10px 12px; border-radius: 8px; font-size: 14px; border-left: 4px solid var(--linie); background: color-mix(in srgb, var(--linie) 9%, var(--paper)); }
.notice.ok { border-color: var(--tafel); background: color-mix(in srgb, var(--tafel) 10%, var(--paper)); }
.notice.warn { border-color: var(--marker); background: color-mix(in srgb, var(--marker) 22%, var(--paper)); }
.choices { display: grid; gap: 10px; margin-bottom: 8px; }
.choice { text-align: left; background: var(--field); color: var(--ink); border: 1px solid var(--line); display: grid; gap: 2px; }
.choice:hover { border-color: var(--tafel); }
.choice span { font-size: 13px; color: var(--muted); }
.qr { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; margin-bottom: 14px; }
.qr img { background: #fff; padding: 6px; border-radius: 8px; border: 1px solid var(--line); width: 150px; height: 150px; }
.qr ol { margin: 0; padding-left: 18px; font-size: 14px; }
.qr code { font-size: 13px; word-break: break-all; background: color-mix(in srgb, var(--marker) 30%, transparent); padding: 1px 4px; border-radius: 3px; }
@media (max-width: 420px) { .qr { grid-template-columns: 1fr; } .qr img { width: 180px; height: 180px; } .sheet { padding: 22px 18px 16px; } .sheet::before { left: 12px; } .brand, .view, .notice { margin-left: 6px; } }
.codes { list-style: none; padding: 0; margin: 0 0 14px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; font: 16px/1.4 Consolas, "Cascadia Mono", monospace; }
.codes li { border: 1px dashed var(--line); border-radius: 6px; padding: 6px; text-align: center; background: var(--field); }
.foot { margin: 22px 0 0 14px; font-size: 12px; color: var(--muted); }
.foot a { color: var(--muted); }
@media print { body { background: #fff; padding: 0; } .sheet { border: 0; background: none; } .sheet::before, .row, .check, .pri, .foot, .brand .mark { display: none; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }