/* Public homepage pages only; the student, teacher and projector views do not load this file. */
/* A fixed 48 px grid; site/backdrop.js draws its metro lines on the same 48 px cells */
body[data-ansicht=start] {
  background:
    linear-gradient(#ffffff08 1px, transparent 1px) 0 0 / 48px 48px fixed,
    linear-gradient(90deg, #ffffff08 1px, transparent 1px) 0 0 / 48px 48px fixed,
    radial-gradient(ellipse at 85% 0, #25273866, transparent 50%) fixed,
    var(--papier);
}
.metro-netz { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; }
body[data-ansicht=start] .container { max-width: 1360px; padding: 28px 42px 64px; }
.kopf a.titel { text-decoration: none; color: inherit; }
.seiten-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.seiten-nav a { text-decoration: none; font-size: .8rem; font-weight: 650; color: var(--gedimmt); }
.seiten-nav a:hover, .seiten-nav a[aria-current=page] { color: var(--text); }
.zugang-lehrkraft { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--kontur); }
.zugang-lehrkraft .rubrik { margin-bottom: 0; }
.zugang-lehrkraft .fussnote { display: block; }
#code-beitritt button { width: 100%; }
.seiten-kopf { max-width: 760px; margin: 20px 0 10px; }
.seiten-kopf h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1; margin-bottom: 14px; }
.seiten-raster { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 14px 0; }
.seiten-raster .karte { margin: 0; }
.seiten-raster .karte .symbol { width: 26px; height: 26px; color: var(--gelb); }
.seiten-raster h3 { margin: 12px 0 8px; }
.seiten-karte { text-decoration: none; color: inherit; display: block; }
.seiten-karte:hover { border-color: var(--gelb); }
.seiten-liste { margin: 0 0 8px 18px; line-height: 1.6; }
.seiten-liste li { margin: 6px 0; }
.seiten-fuss { max-width: 1360px; margin: 0 auto; padding: 22px 42px 40px; font-size: .75rem; color: var(--gedimmt); border-top: 1px solid var(--kontur); }
@media (max-width: 760px) {
  body[data-ansicht=start] .container { padding: 18px 16px 48px; }
  .seiten-fuss { padding: 18px 16px 32px; }
  .seiten-nav { justify-content: flex-end; gap: 6px 14px; }
}

/* ---------- homepage sections ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.fortschritt { position: fixed; inset: 0 0 auto; height: 3px; z-index: 50; pointer-events: none; }
.fortschritt span { display: block; height: 100%; width: 0; background: var(--gelb); }
.mit-js .aufdecken { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.mit-js .aufdecken.sichtbar { opacity: 1; transform: none; }
.start-abschnitt { margin: 84px 0; }
.start-kopf { max-width: 720px; margin-bottom: 24px; }
.start-kopf h2, .start-cta h2 { font-family: var(--titel); text-transform: uppercase; font-size: clamp(2rem, 4vw, 3.2rem); line-height: .95; letter-spacing: -.005em; margin-bottom: 12px; }
.breit-kopf { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
.breit-kopf > div:first-child { max-width: 720px; }

.zahlen-band { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin: 18px 0 0; border: 1px solid #ffffff13; border-radius: 12px; overflow: hidden; background: #12151c; }
.zahl { padding: 22px 20px; border-right: 1px solid #ffffff10; }
.zahl strong { display: block; font: 700 3.4rem/1 var(--titel); color: var(--gelb); }
.zahl span { display: block; margin-top: 8px; font-size: .78rem; color: var(--gedimmt); }

.demo-raster { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.2fr); gap: 32px; align-items: start; }
.demo-tacho { margin-top: 22px; padding: 18px 20px; border: 1px solid #ffffff13; border-radius: 10px; background: #12151c; }
.demo-tacho > span { font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; color: var(--gedimmt); }
.demo-tacho strong { display: block; font: 700 3rem/1 var(--titel); color: var(--gelb); margin: 6px 0 12px; }
.tacho-skala, .demo-zeit { height: 8px; border-radius: 99px; background: #252b36; overflow: hidden; }
.tacho-skala i, .demo-zeit i { display: block; height: 100%; width: 0; background: var(--gelb); transition: width .6s ease; }
.demo-zeit { height: 5px; margin: 10px 0 4px; }
.demo-zeit i { width: 100%; transition: width .1s linear; }
.demo-zeit[data-knapp=true] i { background: var(--rot); }
.demo-tacho small { display: block; margin-top: 10px; color: var(--gedimmt); }
.demo-karte { margin: 0; }
.demo-zeile { display: flex; justify-content: space-between; align-items: center; }
.demo-zeile .rubrik { margin: 0; }
.demo-sekunden { font: 700 1.2rem/1 var(--titel); color: var(--text); }
.demo-frage { font-size: 1.35rem; line-height: 1.3; margin: 18px 0; }
.demo-antworten { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
button.demo-antwort { justify-content: flex-start; text-align: left; margin: 0; min-height: 58px; background: #1b202a; color: var(--text); border: 1px solid #ffffff17; }
button.demo-antwort:hover:not(:disabled) { background: #232a36; border-color: var(--gelb); }
.demo-antwort b { display: grid; place-items: center; width: 28px; height: 28px; flex: none; border-radius: 6px; background: #ffffff10; font-size: .78rem; }
.demo-antwort span { flex: 1; }
.demo-antwort .symbol { width: 20px; height: 20px; }
button.demo-antwort.richtig { background: color-mix(in srgb, var(--gruen) 20%, #151a22); border-color: var(--gruen); }
button.demo-antwort.falsch { background: color-mix(in srgb, var(--rot) 18%, #151a22); border-color: var(--rot); }
button.demo-antwort.aus { opacity: .45; }
.demo-auswertung:not(:empty) { margin-top: 18px; padding-top: 16px; border-top: 1px solid #ffffff12; }
.demo-urteil { font-weight: 750; color: var(--rot); }
.demo-urteil[data-richtig=true] { color: var(--gruen); }
.demo-warum { margin: 12px 0; padding-left: 14px; border-left: 3px solid var(--gelb); }
.demo-warum b { display: block; font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; color: var(--gelb); margin-bottom: 4px; }
.demo-warum p { color: var(--gedimmt); font-size: .9rem; }
.demo-fazit { font-weight: 650; margin-bottom: 4px; }

.rennen-steuerung { display: flex; align-items: center; gap: 12px; }
.rennen-steuerung button { margin: 0; }
.sim-strecke { border: 1px solid #ffffff13; border-radius: 12px; padding: 10px; background: #0f1218; }
.sim-bahn { display: grid; grid-template-columns: 180px minmax(0, 1fr) 76px; align-items: center; gap: 14px; padding: 6px 12px; margin: 6px 0; border: 1px solid #ffffff0d; border-left: 3px solid var(--team); border-radius: 8px; background: #141821; }
.sim-bahn[data-fuehrend=true] { background: color-mix(in srgb, var(--team) 9%, #141821); border-color: color-mix(in srgb, var(--team) 45%, transparent); }
.sim-info { display: grid; grid-template-columns: auto 1fr; column-gap: 8px; align-items: center; }
.sim-info .wappen { grid-row: span 2; }
.sim-info b { font: 700 1.1rem/1 var(--titel); text-transform: uppercase; }
.sim-info small { font-size: .7rem; color: var(--gedimmt); min-height: 1em; }
.sim-gleis { position: relative; height: 54px; background: linear-gradient(transparent 44px, #ffffff1c 44px 46px, transparent 46px), repeating-linear-gradient(90deg, transparent 0 14px, #ffffff10 14px 16px) bottom / 100% 10px no-repeat; }
.sim-zug { position: absolute; bottom: 4px; left: calc((100% - 86px) * var(--weg, 0) / 100); width: 86px; transition: left 1.4s cubic-bezier(.2, .7, .2, 1); }
.sim-zug img { display: block; width: 100%; height: auto; margin-bottom: -14px; }
.sim-ziel { position: absolute; right: 0; top: 6px; bottom: 6px; width: 6px; background: repeating-linear-gradient(#f5f6fa 0 6px, #0b0d12 6px 12px); opacity: .5; }
.sim-km { text-align: right; font: 700 1.3rem/1 var(--titel); }
#rennen-meldung:not(:empty) { color: var(--gelb); font-weight: 650; font-size: .95rem; }

.stepper-schritte { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; }
.stepper-schritte button { margin: 0; flex: 1 0 auto; justify-content: flex-start; gap: 10px; background: #141821; color: var(--gedimmt); border: 1px solid #ffffff14; }
.stepper-schritte button small { font-family: var(--mono); font-size: .7rem; opacity: .8; }
.stepper-schritte button[aria-selected=true] { background: var(--gelb); color: #0d1007; border-color: var(--gelb); }
.stepper-panel { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 14px; }
.stepper-panel .karte { margin: 0; }
.stepper-geraet { display: flex; align-items: center; gap: 8px; color: var(--gelb); margin-bottom: 10px; }
.stepper-geraet .symbol { width: 22px; height: 22px; }
.stepper-geraet b { color: var(--text); font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; }

.format-motto { font-weight: 700; margin-bottom: 8px; }

.team-raster { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.team-karte { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 14px 16px 16px; color: var(--text); background: linear-gradient(160deg, color-mix(in srgb, var(--team) 10%, #191d26), #12151c); border: 1px solid #ffffff13; border-top: 3px solid var(--team); border-radius: 10px; overflow: hidden; transition: background .3s; }
.team-karte:hover { background: linear-gradient(160deg, color-mix(in srgb, var(--team) 18%, #191d26), #12151c); }
.team-karte img { width: 100%; height: auto; margin: -22px 0 -26px; transition: transform .35s ease; }
.team-karte:hover img { transform: translateX(8px) scale(1.04); }
.team-name { display: flex; align-items: center; gap: 8px; font: 700 1.35rem/1 var(--titel); text-transform: uppercase; }
.team-karte small { color: var(--gedimmt); font-size: .78rem; }

.faq details { border-bottom: 1px solid var(--kontur); max-width: 900px; }
.faq summary { display: flex; justify-content: space-between; gap: 16px; padding: 18px 0; cursor: pointer; font-weight: 700; font-size: 1.05rem; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--gelb); font: 700 1.4rem/1 var(--titel); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--gedimmt); padding: 0 0 18px; max-width: 760px; }

.start-cta { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 28px; align-items: center; margin: 84px 0 20px; padding: 40px; border: 1px solid color-mix(in srgb, var(--gelb) 30%, transparent); border-radius: 14px; background: radial-gradient(ellipse at 100% 0, color-mix(in srgb, var(--gelb) 14%, transparent), transparent 60%), #12151c; }
.cta-knoepfe { display: flex; gap: 12px; flex-wrap: wrap; }
.cta-knoepfe .knopf-link { margin: 0; }
.knopf-link.primaer { background: var(--gelb); color: #0d1007; border-color: var(--gelb); font-weight: 700; }
.cta-links { grid-column: 1 / -1; display: flex; gap: 20px; font-size: .8rem; }
.cta-links a { color: var(--gedimmt); }


.zeiger-schalter { position: fixed; right: 18px; bottom: 18px; z-index: 61; width: 46px; height: 46px; min-height: 0; padding: 11px 9px; margin: 0; border-radius: 50%; background: #191d26; border: 1px solid color-mix(in srgb, var(--gelb) 45%, transparent); }
.zeiger-schalter svg { display: block; width: 100%; height: 100%; }
.zeiger-schalter .schiene { fill: var(--gelb); }
.zeiger-schalter .schwelle { fill: var(--gelb); opacity: .45; }
.zeiger-schalter:hover:not(:disabled) { background: #232a36; }
.zeiger-schalter[aria-pressed=false] { border-color: var(--kontur); }
.zeiger-schalter[aria-pressed=false] svg { opacity: .35; }

@media (max-width: 900px) {
  .demo-raster { grid-template-columns: 1fr; }
  .stepper-panel { grid-template-columns: 1fr; }
  .team-raster { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .start-cta { grid-template-columns: 1fr; padding: 28px 22px; }
}
@media (max-width: 760px) {
  .start-abschnitt { margin: 56px 0; }
  .zahl strong { font-size: 2.6rem; }
  .demo-antworten { grid-template-columns: 1fr; }
  .sim-bahn { grid-template-columns: minmax(0, 1fr) auto; gap: 6px 10px; }
  .sim-gleis { grid-column: 1 / -1; grid-row: 2; }
  .rennen-steuerung { width: 100%; justify-content: space-between; }
}