:root { --text: #1d1d1f; --rand: #d2d2d7; --grund: #fafafa; --akzent: #0b57d0; --gefahr: #b3261e; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, sans-serif; color: var(--text); background: var(--grund); }
header { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; padding: .75rem 1rem;
         background: #fff; border-bottom: 1px solid var(--rand); }
nav { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
main { max-width: 1100px; margin: 0 auto; padding: 1rem; }
a { color: var(--akzent); }
h1 { font-size: 1.5rem; } h2 { font-size: 1.15rem; margin-top: 2rem; }
.karte { background: #fff; border: 1px solid var(--rand); border-radius: 8px; padding: 1rem; margin: 1rem 0; max-width: 640px; }
label { display: block; margin: .5rem 0; }
input, select { display: block; width: 100%; padding: .45rem; margin-top: .25rem; border: 1px solid var(--rand); border-radius: 6px; font: inherit; }
input[type=number] { width: 6rem; display: inline-block; }
button { padding: .45rem .9rem; border: 1px solid var(--akzent); background: var(--akzent); color: #fff; border-radius: 6px; font: inherit; cursor: pointer; }
button.gefahr { background: #fff; color: var(--gefahr); border-color: var(--gefahr); }
button.link { background: none; border: none; color: var(--akzent); padding: 0; text-decoration: underline; }
form.inline { display: inline; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: .45rem; border-bottom: 1px solid var(--rand); vertical-align: top; }
td.aktionen form { display: inline-block; margin: 0 .25rem .25rem 0; }
tr.gesperrt td { color: #888; }
pre { background: #f2f2f2; padding: .75rem; border-radius: 6px; overflow-x: auto; }
pre.key { font-size: 1rem; word-break: break-all; white-space: pre-wrap; }
.meldung { padding: .75rem; border-radius: 6px; background: #e8f0fe; }
.meldung.fehler { background: #fce8e6; color: var(--gefahr); }
.qr svg { width: 220px; height: auto; }