:root { --ink: #1d2327; --muted: #555d66; --line: #c9ced3; --accent: #1f5f8b; --bg: #f7f8f9; --warn: #8a1f11; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: var(--bg); }
main { max-width: 640px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.6rem; margin: 0 0 16px; }
.notice { border-left: 4px solid var(--warn); background: #fff; padding: 8px 12px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; background: #fff; margin: 0 0 16px; padding: 12px 16px; }
legend { font-weight: 600; padding: 0 4px; }
label { display: block; margin: 0 0 12px; font-weight: 500; }
input, textarea { display: block; width: 100%; margin-top: 4px; padding: 8px; font: inherit; border: 1px solid var(--line); border-radius: 6px; }
.med-row { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 8px; }
@media (max-width: 520px) { .med-row { grid-template-columns: 1fr; } }
label.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; }
label.check input { width: auto; margin-top: 4px; }
button { font: inherit; padding: 10px 18px; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; }
button.secondary { background: #fff; color: var(--accent); margin: -4px 0 16px; }
button:disabled { opacity: .6; cursor: wait; }
.error { color: var(--warn); font-weight: 600; }
.ref { font-size: 1.8rem; font-weight: 700; letter-spacing: .08em; }
.text h2 { font-size: 1.15rem; margin: 28px 0 8px; }
.text ul { padding-left: 20px; }
.text li { margin-bottom: 6px; }
a { color: var(--accent); }
.stand { color: var(--muted); font-size: .9rem; margin-top: 32px; }
.hint { color: var(--muted); font-size: .9rem; margin: 0; }
input[type=file] { padding: 6px; background: #fff; }
fieldset.datum { border: 0; padding: 0; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 0 12px; align-items: flex-end; }
fieldset.datum legend { font-weight: 500; padding: 0; margin-bottom: 2px; }
fieldset.datum .hint { flex-basis: 100%; margin-bottom: 4px; }
fieldset.datum label { margin: 0; }
fieldset.datum input[name=geb_tag], fieldset.datum input[name=geb_monat] { width: 4.5em; }
fieldset.datum input[name=geb_jahr] { width: 6em; }
.dateiliste { list-style: none; padding: 0; margin: 0 0 8px; display: grid; gap: 6px; }
.dateiliste li { display: flex; align-items: center; gap: 8px; background: var(--bg); border: 1px solid var(--line);
  border-radius: 6px; padding: 6px 8px; }
.dateiliste .name { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.dateiliste .groesse { color: var(--muted); font-size: .9rem; white-space: nowrap; }
.dateiliste button { padding: 4px 10px; font-size: .9rem; background: #fff; color: var(--accent); }
.unsichtbar { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.datei-knopf { display: inline-block; margin: 6px 0 10px; padding: 8px 16px; border: 1px solid var(--accent);
  border-radius: 6px; color: var(--accent); background: #fff; font-weight: 500; cursor: pointer; }
.unsichtbar:focus-visible + .datei-knopf { outline: 3px solid var(--accent); outline-offset: 2px; }