:root {
  color-scheme: light dark;
  --hg-bg: #f6f7f9;
  --hg-fg: #14171c;
  --hg-karte: #ffffff;
  --hg-rand: #5c6570;
  --hg-akzent: #0b57d0;
  --hg-akzent-text: #ffffff;
  --hg-gefahr: #b3261e;
  --hg-warnung-bg: #fff4d6;
  --hg-warnung-rand: #8a5a00;
  --hg-gedaempft: #3c4650;
}

@media (prefers-color-scheme: dark) {
  :root {
    --hg-bg: #121418;
    --hg-fg: #eceff3;
    --hg-karte: #1b1f26;
    --hg-rand: #8a94a3;
    --hg-akzent: #8ab4f8;
    --hg-akzent-text: #0b1220;
    --hg-gefahr: #ff8a80;
    --hg-warnung-bg: #3a2f10;
    --hg-warnung-rand: #e0b34a;
    --hg-gedaempft: #b9c1cc;
  }
}

* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--hg-bg);
  color: var(--hg-fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}

main,
header {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1rem;
}

header {
  padding-bottom: 0;
}

h1 {
  font-size: 1.75rem;
  margin: 0.5rem 0;
}

h2 {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}

section,
.anmeldung {
  background: var(--hg-karte);
  border: 1px solid var(--hg-rand);
  border-radius: 0.75rem;
  padding: 1rem;
  margin: 0 0 1rem;
}

fieldset {
  border: 0;
  margin: 0 0 1rem;
  padding: 0;
}

legend {
  font-weight: 600;
  padding: 0;
  margin-bottom: 0.5rem;
}

label {
  display: block;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.auswahl {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 3rem;
  font-weight: 400;
}

.auswahl input {
  width: 1.5rem;
  height: 1.5rem;
  margin: 0;
  flex: none;
}

input[type="password"],
input[type="number"],
textarea {
  display: block;
  width: 100%;
  min-height: 3rem;
  margin: 0 0 1rem;
  padding: 0.5rem 0.75rem;
  font: inherit;
  font-size: 1rem;
  color: var(--hg-fg);
  background: var(--hg-bg);
  border: 2px solid var(--hg-rand);
  border-radius: 0.5rem;
}

textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9375rem;
  overflow-wrap: anywhere;
  resize: vertical;
}

button {
  display: block;
  width: 100%;
  min-height: 3rem;
  margin: 0 0 0.75rem;
  padding: 0.5rem 1rem;
  font: inherit;
  font-weight: 600;
  color: var(--hg-akzent-text);
  background: var(--hg-akzent);
  border: 2px solid var(--hg-akzent);
  border-radius: 0.5rem;
  cursor: pointer;
}

button.sekundaer {
  color: var(--hg-fg);
  background: transparent;
  border-color: var(--hg-rand);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

:focus-visible {
  outline: 3px solid var(--hg-akzent);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.fehler {
  color: var(--hg-gefahr);
  font-weight: 600;
  margin: 0 0 1rem;
}

.hinweis {
  margin: 0 0 1rem;
  color: var(--hg-gedaempft);
}

.warnung {
  background: var(--hg-warnung-bg);
  border: 2px solid var(--hg-warnung-rand);
  border-radius: 0.5rem;
  padding: 0.75rem;
  margin: 0 0 1rem;
  font-weight: 600;
}

progress {
  display: block;
  width: 100%;
  height: 1.25rem;
  margin: 0 0 0.5rem;
  accent-color: var(--hg-akzent);
}

.status {
  margin: 0 0 1rem;
  min-height: 1.5rem;
}

@media (min-width: 40rem) {
  button {
    width: auto;
    min-width: 12rem;
  }
}