:root {
  --marke: #1f5a9e;
  --marke-dunkel: #174a85;
  --text: #1f2a37;
  --gedaempft: #5b6b7c;
  --linie: #d9e0e8;
  --grund: #f3f5f8;
  --fehler: #b42318;
  --erfolg: #17733f;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--grund);
  color: var(--text);
  font: 16px/1.55 "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}
.karte {
  max-width: 560px;
  margin: 32px auto;
  background: #fff;
  border: 1px solid var(--linie);
  border-radius: 12px;
  padding: 28px 28px 24px;
}
h1 { font-size: 22px; font-weight: 600; margin: 0 0 18px; }
h2 { font-size: 17px; font-weight: 600; margin: 0 0 10px; }
p { margin: 0 0 12px; }
.hinweis { color: var(--gedaempft); }
.klein { font-size: 13px; margin-top: 12px; }
.fehler { color: var(--fehler); font-weight: 500; }
.erfolg { color: var(--erfolg); font-weight: 600; }
#einwilligung p { font-size: 14.5px; }
.kasten {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 16px 0;
  padding: 12px;
  background: var(--grund);
  border-radius: 8px;
  font-weight: 500;
}
.kasten input { width: 18px; height: 18px; margin-top: 3px; flex: none; }
.zeile { margin-bottom: 14px; }
.zeile label { display: block; font-size: 14px; color: var(--gedaempft); margin-bottom: 4px; }
input[type="date"], input[type="text"], select {
  width: 100%;
  height: 42px;
  padding: 0 10px;
  font: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid #b9c4d0;
  border-radius: 8px;
}
input:focus, select:focus { outline: 2px solid var(--marke); outline-offset: 0; border-color: var(--marke); }
button {
  height: 44px;
  padding: 0 18px;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: #fff;
  border: 1px solid #b9c4d0;
  border-radius: 8px;
  cursor: pointer;
}
button.primaer { width: 100%; color: #fff; background: var(--marke); border-color: var(--marke); }
button.primaer:hover { background: var(--marke-dunkel); }
button:disabled { opacity: .6; cursor: default; }
/* Datumsfeld mit eigenem Kalender (Woche ab Montag) */
.datum { position: relative; }
.datum input[type="text"] { padding-right: 46px; }
.datum .kal-knopf {
  position: absolute; right: 3px; top: 3px; width: 40px; height: 36px; padding: 0;
  border: 0; background: transparent; color: var(--gedaempft); display: flex;
  align-items: center; justify-content: center; border-radius: 6px;
}
.datum .kal-knopf:hover { background: var(--grund); color: var(--marke); }
.kalender {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 20; width: 304px; max-width: 100%;
  background: #fff; border: 1px solid var(--linie); border-radius: 10px; padding: 10px;
  box-shadow: 0 10px 28px rgba(16, 32, 56, .14);
}
.kalender button { height: auto; padding: 0; border: 0; background: none; font-weight: 400; }
.kal-kopf { display: flex; align-items: center; justify-content: space-between; font-weight: 600; margin-bottom: 6px; }
.kalender .kal-nav { width: 36px; height: 36px; font-size: 22px; line-height: 1; color: var(--marke); border-radius: 6px; }
.kalender .kal-nav:hover { background: var(--grund); }
.kal-raster { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.kal-wt { text-align: center; font-size: 12px; font-weight: 600; color: var(--gedaempft); padding: 4px 0; }
.kalender .kal-tag { height: 36px; border-radius: 6px; font-size: 14px; color: var(--text); cursor: pointer; }
.kalender .kal-tag.we { color: #6a7785; }
.kalender .kal-tag.anders { color: #b4bdc7; }
.kalender .kal-tag:hover { background: #eef3fa; }
.kalender .kal-tag.bereich { background: #e3edfb; }
.kalender .kal-tag.heute { box-shadow: inset 0 0 0 1.5px var(--marke); font-weight: 600; }
.kalender .kal-tag.gewaehlt { background: var(--marke); color: #fff; font-weight: 600; }
.kalender .kal-tag:disabled { color: #d3d9df; background: none; cursor: default; }
.kal-fuss { display: flex; justify-content: space-between; margin-top: 6px; }
.kalender .kal-link { height: 32px; padding: 0 8px; color: var(--marke); font-weight: 600; border-radius: 6px; }
.kalender .kal-link:hover { background: var(--grund); }
@media (max-width: 600px) {
  .karte { margin: 0; border: 0; border-radius: 0; min-height: 100vh; padding: 22px 18px; }
  .kalender { width: 100%; }
}