:root { color-scheme: light; font-family: system-ui, sans-serif; color: #25275f; background: #f5f6fa; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; line-height: 1.6; }
main { max-width: 64rem; margin: 3rem auto; padding: 2.5rem; background: white; border-top: .4rem solid #25275f; border-radius: .5rem; }
h1 { font-size: clamp(1.9rem, 6vw, 2.8rem); line-height: 1.2; margin: .75rem 0 1rem; }
h2 { font-size: 1.25rem; margin: 0 0 .5rem; }
p { margin: .75rem 0; }
.marke { font-weight: 700; margin-top: 0; }
.marke span { font-weight: 400; }
a { color: #25275f; text-underline-offset: .2em; }
button, input { font: inherit; }
button { min-height: 2.8rem; padding: .65rem 1.2rem; border: 1px solid #25275f; border-radius: .3rem; background: #25275f; color: white; font-weight: 650; cursor: pointer; }
button:hover { background: #383b7e; }
button:disabled { cursor: wait; opacity: .65; }
.sekundaer { color: #25275f; background: white; }
.sekundaer:hover { background: #ededf5; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid #a35b00; outline-offset: 3px; }
.hinweis { padding: 1rem 1.25rem; border-left: .25rem solid #25275f; background: #f0f1f8; }
form { margin-top: 1.5rem; }
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.eingaben { display: grid; grid-template-columns: minmax(10rem, 1fr) minmax(12rem, 2fr); gap: 1.25rem; margin-bottom: 1.25rem; }
label { display: block; font-weight: 650; margin-bottom: .35rem; }
input { width: 100%; min-width: 0; min-height: 2.8rem; padding: .55rem .7rem; border: 1px solid #777991; border-radius: .3rem; color: #20213c; background: white; }
input:disabled { background: #f5f6fa; }
input[aria-invalid="true"] { border: 2px solid #9c2630; }
#code { letter-spacing: .15em; font-variant-numeric: tabular-nums; }
small { display: block; margin-top: .4rem; color: #52546b; line-height: 1.4; }
#eingabefehler { color: #9c2630; }
#eingabefehler:empty, #anbieter:empty { display: none; }
.sitzungsstatus { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin: 1.25rem 0 .5rem; }
#meldung { font-weight: 600; overflow-wrap: anywhere; }
#verlassen { flex-shrink: 0; }
#anbieter { color: #52546b; overflow-wrap: anywhere; }
#bild { margin: 1rem 0; border: 1px solid #dedfe9; border-radius: .4rem; overflow: hidden; background: #131426; }
.videoflaeche { position: relative; display: grid; min-height: 12rem; aspect-ratio: 16 / 9; }
video { display: block; width: 100%; height: 100%; min-height: 0; object-fit: contain; grid-area: 1 / 1; }
#bildmeldung { display: grid; place-items: center; grid-area: 1 / 1; z-index: 1; margin: 0; padding: 1rem; color: white; background: #131426; font-size: 1.25rem; }
.bildaktionen { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: .75rem; padding: .75rem; background: #f5f6fa; }
.bildaktionen:has(button:not([hidden])) { border-top: 1px solid #dedfe9; }
#bild:fullscreen { display: flex; flex-direction: column; border: 0; border-radius: 0; }
#bild:fullscreen .videoflaeche { flex: 1; min-height: 0; aspect-ratio: auto; }
.datenschutz { font-size: .95rem; margin-top: 1.5rem; }
.programm { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid #dedfe9; }
.visuell-versteckt { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 42rem) {
  main { margin: 0; padding: 1.5rem; border-radius: 0; }
  .eingaben { grid-template-columns: 1fr; }
  .sitzungsstatus { align-items: flex-start; flex-direction: column; }
  .videoflaeche { min-height: 9rem; }
}