:root {
  --akzent: #0a7c8a;
  --akzent-dunkel: #075964;
  --grau: #f4f6f7;
  --rand: #d9e0e3;
  --text: #1c2529;
  --warn: #b23b2e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--grau);
}
.kopf {
  background: var(--akzent);
  color: #fff;
}
.kopf-inhalt {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.8rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.marke {
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
}
.nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 1.2rem;
  opacity: 0.9;
}
.nav a:hover { opacity: 1; text-decoration: underline; }
.inhalt {
  max-width: 960px;
  margin: 1.5rem auto;
  padding: 0 1rem;
}
.karte {
  background: #fff;
  border: 1px solid var(--rand);
  border-radius: 10px;
  padding: 1.5rem;
}
h1 { margin-top: 0; font-size: 1.5rem; }
h2 { font-size: 1.1rem; }
.lead { color: #4a575d; }
.formular { margin: 1.2rem 0; }
.feld {
  display: block;
  margin-bottom: 1rem;
}
.feld-titel {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.feld-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.feld-check .feld-titel { margin-bottom: 0; font-weight: 500; }
input[type="text"], input[type="number"], input[type="file"], select {
  width: 100%;
  max-width: 100%;
  padding: 0.55rem 0.6rem;
  border: 1px solid var(--rand);
  border-radius: 6px;
  font-size: 1rem;
  background: #fff;
}
.params {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 1.2rem;
  margin-bottom: 1rem;
}
.params .feld-check { grid-column: 1 / -1; }
.knopf {
  background: var(--akzent);
  color: #fff;
  border: none;
  padding: 0.7rem 1.3rem;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.knopf:hover { background: var(--akzent-dunkel); }
.tabelle {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}
.tabelle th, .tabelle td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--rand);
}
.tabelle th { background: var(--grau); }
.tabelle .hex { font-family: ui-monospace, monospace; color: #4a575d; }
.tabelle select, .tabelle input { width: auto; min-width: 6rem; }
.erkannt { margin: 0.8rem 0; }
.chip {
  display: inline-block;
  background: var(--grau);
  border: 1px solid var(--rand);
  border-radius: 20px;
  padding: 0.2rem 0.7rem;
  margin: 0.2rem 0.3rem 0.2rem 0;
  font-size: 0.85rem;
}
.info { margin-top: 1.5rem; border-top: 1px solid var(--rand); padding-top: 1rem; }
.hinweis {
  background: #fff6e5;
  border: 1px solid #f0d9a8;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  margin-bottom: 1rem;
}
.warn { color: var(--warn); font-weight: 600; }
.summe { margin-top: 1rem; }
.fuss {
  max-width: 960px;
  margin: 2rem auto;
  padding: 1rem;
  color: #7a878d;
  font-size: 0.85rem;
  text-align: center;
}
@media (max-width: 640px) {
  .params { grid-template-columns: 1fr; }
}

.kennzahlen { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1rem 0; }
.kz { background: var(--grau); border: 1px solid var(--rand); border-radius: 8px; padding: 0.7rem 1rem; min-width: 5.5rem; text-align: center; }
.kz-zahl { display: block; font-size: 1.4rem; font-weight: 700; color: var(--akzent); }
.kz-txt { display: block; font-size: 0.8rem; color: #4a575d; }
.ok { color: #1f8a4c; font-weight: 600; }
.gate { margin-top: 1.5rem; border: 2px dashed var(--akzent); border-radius: 10px; padding: 1rem 1.2rem; background: #f0fbfc; }
.gate h2 { margin-top: 0; }
.hint { font-size: 0.85rem; color: #4a575d; }
.knopf-sekundaer { background: #6b7a80; margin-top: 1rem; }
.knopf-sekundaer:hover { background: #55636a; }