/* elektroflow · Werkplan.
   Kühles Planpapier, Tusche in Blauschwarz, ein Akzent aus dem Logo-Blau.
   Eine Welt, bewusst nur hell: ein Werkplan ist Papier. Jede Farbe ist
   explizit gesetzt, damit die Seite auf jedem Host-Grund gleich steht. */

@font-face {
  font-family: "Geist";
  src: url("/landing/fonts/geist.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "Geist Mono";
  src: url("/landing/fonts/geist-mono.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  color-scheme: light;
  --sc-canvas:     #EEF1F4;
  --sc-surface:    #F9FAFB;
  --sc-ink:        #0F1B2A;
  --sc-ink-soft:   #4A5869;
  --sc-accent:     #0166EA;
  --sc-accent-ink: #FFFFFF;
  --sc-font-display: "Geist", system-ui, sans-serif;
  --sc-font-text:    "Geist", system-ui, sans-serif;
  --sc-font-mono:    "Geist Mono", ui-monospace, monospace;
  --sc-shadow-color: 214 40% 20%;

  --papier: #F9FAFB;
  --linie: color-mix(in oklab, var(--sc-ink) 16%, transparent);
  --raster: color-mix(in oklab, var(--sc-accent) 9%, transparent);
  --stift: #E8A400;          /* Leuchtstift, nur im Abend-Akt */
  --bar-h: 64px;
}

body { background: var(--sc-canvas); color: var(--sc-ink); }

.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;
}

/* ------------------------------------------------------------ Kopfzeile -- */
.bar {
  position: fixed; inset: 0 0 auto 0; z-index: var(--sc-z-chrome);
  height: var(--bar-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sc-4);
  padding-inline: var(--sc-gutter);
  background: color-mix(in oklab, var(--sc-canvas) 88%, transparent);
  border-bottom: 1px solid var(--linie);
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
}
.bar__marke { display: block; color: var(--sc-ink); }
.bar__marke svg { height: 34px; width: auto; }
.bar__nav { display: flex; align-items: center; gap: var(--sc-5); }
.bar__link {
  color: var(--sc-ink); text-decoration: none; font-size: var(--sc-t-sm);
  padding: var(--sc-2) 0;
}
.bar__link:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- Knopf -- */
.knopf {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 var(--sc-5);
  background: var(--sc-accent); color: var(--sc-accent-ink);
  border: 0; border-radius: var(--sc-r-sm);
  font-weight: 550; font-size: var(--sc-t-base); letter-spacing: -0.005em;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  box-shadow: var(--sc-e1), inset 0 1px 0 rgb(255 255 255 / 0.18);
  transition: background-color 140ms var(--sc-ease-out), transform 120ms var(--sc-ease-out);
}
.knopf:hover { background: #0057C8; }
.knopf:active { transform: translateY(1px); }
.knopf:disabled { background: #7C8A9B; cursor: progress; }
.knopf--klein { min-height: 40px; padding: 0 var(--sc-4); font-size: var(--sc-t-sm); }

/* ---------------------------------------------------------------- Plan ---- */
.plan { width: 100%; height: auto; overflow: visible; }
.plan .plan-raum rect { fill: transparent; transition: fill 260ms var(--sc-ease-out); }
.plan .plan-raum rect.aktiv { fill: color-mix(in oklab, var(--sc-accent) 6%, transparent); }
.plan .plan-strich path { fill: none; stroke: var(--sc-ink); stroke-linecap: square; }
.plan .plan-mauer path { stroke-width: 7; }
.plan .plan-wand path { stroke-width: 3.5; }
.plan .plan-tuer path { stroke-width: 1; stroke: var(--sc-ink-soft); }
.plan .plan-fenster rect { fill: var(--papier); stroke: var(--sc-ink); stroke-width: 1; }
.plan .plan-fenster path { fill: none; stroke: var(--sc-ink); stroke-width: 1; }
.plan .plan-mass path { fill: none; stroke: var(--sc-ink-soft); stroke-width: 0.8; }
.plan .plan-mass text,
.plan .plan-text text {
  font-family: var(--sc-font-mono); font-size: 11px; fill: var(--sc-ink-soft);
  letter-spacing: 0.02em;
}
.plan .plan-text text[data-raum-label] { fill: var(--sc-ink); font-size: 12px; transition: fill 260ms var(--sc-ease-out); }
.plan .plan-text text.aktiv { fill: var(--sc-accent); }
.plan .plan-text .plan-flaeche { font-size: 10px; }

/* Einzeichnen beim Laden: nur Strich-Offset, keine Positionen. */
@media (prefers-reduced-motion: no-preference) {
  .plan--zeichnen .plan-strich path,
  .plan--zeichnen .plan-mass path {
    stroke-dasharray: 2400; stroke-dashoffset: 2400;
    animation: zeichnen 1.6s var(--sc-ease-out) forwards;
  }
  .plan--zeichnen .plan-wand path { animation-delay: 0.25s; }
  .plan--zeichnen .plan-tuer path { animation-delay: 0.6s; }
  .plan--zeichnen .plan-mass path { animation-delay: 0.8s; }
  .plan--zeichnen .plan-fenster,
  .plan--zeichnen .plan-text,
  .plan--zeichnen .plan-mass text { opacity: 0; animation: auftauchen 0.6s var(--sc-ease-out) 1s forwards; }
}
@keyframes zeichnen { to { stroke-dashoffset: 0; stroke-dasharray: none; } }
@keyframes auftauchen { to { opacity: 1; } }

/* ---------------------------------------------------------- 1 · Einstieg -- */
.held {
  position: relative; min-height: 100svh; overflow: clip;
  display: grid; align-items: end;
  padding: calc(var(--bar-h) + var(--sc-7)) var(--sc-gutter) clamp(3rem, 10vh, 7rem);
}
.held__raster {
  position: absolute; inset: -140px 0;
  background-image:
    linear-gradient(var(--raster) 1px, transparent 1px),
    linear-gradient(90deg, var(--raster) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 40%, #000 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 40%, #000 100%);
  pointer-events: none;
}
.held__plan {
  position: absolute; margin: 0;
  right: calc(var(--sc-gutter) * 0.6); top: calc(var(--bar-h) + 4vh);
  width: min(50vw, 800px);
  pointer-events: none;
}
.held__text { position: relative; z-index: 2; max-width: 38rem; }
.held__titel {
  font-family: var(--sc-font-display);
  font-size: clamp(2.6rem, 1.4rem + 4.6vw, 5.6rem);
  font-weight: 600; line-height: 0.98; letter-spacing: -0.04em;
  margin: 0; text-wrap: balance; max-width: 12ch;
}
.held__titel-zwei { color: var(--sc-accent); }
.held__lede {
  margin: var(--sc-5) 0 var(--sc-6);
  font-size: var(--sc-t-lg); line-height: 1.45; letter-spacing: -0.01em;
  color: var(--sc-ink-soft); max-width: 34ch; text-wrap: pretty;
}
@media (prefers-reduced-motion: no-preference) {
  .held__text > * { opacity: 0; transform: translateY(12px); animation: ankommen 700ms var(--sc-ease-out) forwards; }
  .held__text > :nth-child(2) { animation-delay: 90ms; }
  .held__text > :nth-child(3) { animation-delay: 180ms; }
}
@keyframes ankommen { to { opacity: 1; transform: none; } }

/* ------------------------------------------------------------- 2 · Abend -- */
.abend__buehne {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  align-items: center; gap: var(--sc-8);
  padding: calc(var(--bar-h) + var(--sc-6)) var(--sc-gutter) var(--sc-7);
}
.abend__strich { width: 100%; max-width: 520px; justify-self: end; opacity: 0.9; }
.abend__plan path { fill: none; stroke: color-mix(in oklab, var(--sc-ink) 40%, transparent); stroke-width: 2; }
.abend__zaehlung path, .abend__zaehlung circle {
  fill: none; stroke: var(--stift); stroke-width: 3; stroke-linecap: round;
}
.abend__zeilen { position: relative; min-height: 14rem; }
.abend__zeile {
  position: absolute; inset: 0 auto auto 0; margin: 0;
  font-size: clamp(1.7rem, 1.1rem + 2.2vw, 3rem);
  font-weight: 500; line-height: 1.12; letter-spacing: -0.03em;
  max-width: 17ch; text-wrap: balance;
}
.abend__zeile--zeit { font-family: var(--sc-font-mono); font-weight: 400; letter-spacing: -0.02em; max-width: 22ch; }
.abend__zeile--letzte { color: var(--sc-ink); }

/* -------------------------------------------------------------- 3 · Peak -- */
.peak__buehne {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  grid-template-rows: auto 1fr auto;
  column-gap: clamp(2rem, 6vw, 7rem); row-gap: var(--sc-4);
  padding: calc(var(--bar-h) + var(--sc-5)) var(--sc-gutter) var(--sc-6);
}
.peak__titel {
  grid-column: 1 / -1; margin: 0;
  font-size: clamp(1.6rem, 1rem + 2vw, 2.6rem);
  font-weight: 600; line-height: 1.06; letter-spacing: -0.03em;
  text-wrap: balance; max-width: 30ch;
}
.peak__titel span { color: var(--sc-ink-soft); font-weight: 500; }
.peak__plan { margin: 0; align-self: center; min-height: 0; position: relative; }
.plan--peak { max-height: calc(100svh - var(--bar-h) - 12rem); }
.plankopf {
  display: flex; gap: 0; margin-top: var(--sc-3);
  font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); color: var(--sc-ink-soft);
  border: 1px solid var(--linie); width: max-content; max-width: 100%;
}
.plankopf span { padding: 4px 10px; }
.plankopf span + span { border-left: 1px solid var(--linie); }

.plan .sym { color: var(--sc-accent); opacity: 0; transform-box: fill-box; transform-origin: center; transform: scale(0.6); }
.plan .sym.gesetzt { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .plan .sym { transition: opacity 180ms var(--sc-ease-out), transform 260ms var(--sc-ease-out); }
}

.devi {
  align-self: center; position: relative; z-index: 2;
  background: var(--papier);
  border: 1px solid var(--linie); border-radius: var(--sc-r-sm);
  box-shadow: var(--sc-e2), var(--sc-edge);
  padding: var(--sc-5) var(--sc-5) var(--sc-4);
}
.devi__kopf { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: var(--sc-3); }
.devi__titel { margin: 0; font-weight: 600; font-size: var(--sc-t-lg); letter-spacing: -0.02em; }
.devi__hinweis { margin: 0; font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); color: var(--sc-ink-soft); }
.devi__tabelle { width: 100%; border-collapse: collapse; font-size: var(--sc-t-sm); font-variant-numeric: tabular-nums; }
.devi__tabelle th { text-align: left; font-weight: 500; color: var(--sc-ink-soft); }
.devi__tabelle thead th {
  font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); font-weight: 400;
  letter-spacing: 0.04em; padding: 0 0 var(--sc-2); border-bottom: 1px solid var(--sc-ink);
}
.devi__tabelle td, .devi__tabelle tbody th { padding: 7px 0; border-bottom: 1px solid var(--linie); }
.devi__tabelle td + td, .devi__tabelle th + th { padding-left: var(--sc-3); }
.devi__tabelle .zahl { text-align: right; font-family: var(--sc-font-mono); white-space: nowrap; }
.devi__tabelle .code { font-family: var(--sc-font-mono); color: var(--sc-ink-soft); }
.devi__tabelle tbody tr { opacity: 0.34; transition: opacity 200ms var(--sc-ease-out); }
.devi__tabelle tbody tr.belegt { opacity: 1; }
.devi__tabelle tbody tr.puls td { background: color-mix(in oklab, var(--sc-accent) 8%, transparent); }
.devi__tabelle tbody tr.belegt .code { color: var(--sc-accent); }
.devi__tabelle tfoot th, .devi__tabelle tfoot td { padding: 5px 0; border: 0; }
.devi__tabelle tfoot tr:first-child > * { padding-top: var(--sc-3); }
.devi__total > * { border-top: 1px solid var(--sc-ink) !important; padding-top: var(--sc-2) !important; }
.devi__total th { color: var(--sc-ink) !important; font-weight: 600 !important; font-size: var(--sc-t-base); }
.devi__total .zahl { font-size: var(--sc-t-lg); font-weight: 500; color: var(--sc-ink); letter-spacing: -0.02em; }

.leitungen { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1; overflow: visible; }
.leitungen path { fill: none; stroke: var(--sc-accent); stroke-width: 1.25; stroke-linejoin: round; }
.leitungen circle { fill: var(--sc-accent); }

.peak__schluss {
  grid-column: 2; margin: 0; align-self: start;
  font-size: var(--sc-t-lg); font-weight: 500; letter-spacing: -0.02em; line-height: 1.3;
}

/* ----------------------------------------------------------- 4 · Projekt -- */
.projekt__buehne { display: flex; align-items: center; padding-top: var(--bar-h); }
.schiene {
  gap: clamp(1.25rem, 3vw, 3rem); align-items: stretch;
  padding-inline: var(--sc-gutter); width: max-content;
}
.schiene__kopf, .schiene__ende { width: clamp(17rem, 30vw, 26rem); flex: none; align-self: center; }
.schiene__titel {
  margin: 0; font-size: clamp(1.8rem, 1.1rem + 2.4vw, 3.2rem);
  font-weight: 600; line-height: 1.02; letter-spacing: -0.035em; text-wrap: balance;
}
.schiene__lede { margin: var(--sc-4) 0 0; color: var(--sc-ink-soft); max-width: 30ch; }
.schiene__ende p {
  margin: 0; font-size: var(--sc-t-xl); font-weight: 500; letter-spacing: -0.03em; line-height: 1.15;
  max-width: 14ch;
}
.etappe {
  flex: none; width: clamp(16rem, 24vw, 21rem);
  background: var(--papier); border: 1px solid var(--linie); border-radius: var(--sc-r-sm);
  padding: var(--sc-6) var(--sc-5) var(--sc-5);
  box-shadow: var(--sc-e1), var(--sc-edge);
  display: flex; flex-direction: column;
}
.etappe__zeichen { width: 44px; height: 44px; margin-bottom: var(--sc-7); }
.etappe__zeichen path, .etappe__zeichen circle {
  fill: none; stroke: var(--sc-accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
}
.etappe__zeichen .etappe__kreuz { stroke: var(--sc-ink); stroke-width: 2; }
.etappe h3 { margin: 0; font-size: var(--sc-t-xl); font-weight: 600; letter-spacing: -0.03em; }
.etappe__wer {
  margin: var(--sc-1) 0 var(--sc-4); font-family: var(--sc-font-mono);
  font-size: var(--sc-t-xs); color: var(--sc-ink-soft); letter-spacing: 0.02em;
}
.etappe p:last-child { margin: 0; color: var(--sc-ink-soft); font-size: var(--sc-t-sm); line-height: 1.55; }
@media (prefers-reduced-motion: no-preference) {
  .etappe { transition: transform 200ms var(--sc-ease-out); }
}

/* ----------------------------------------------------------- 5 · Stempel -- */
.stempel__raster {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 7vw, 8rem); align-items: end;
}
.stempel__titel {
  margin: 0; font-size: clamp(1.9rem, 1.1rem + 2.8vw, 3.6rem);
  font-weight: 600; line-height: 1.02; letter-spacing: -0.035em; text-wrap: balance; max-width: 14ch;
}
.stempel__lede { margin: var(--sc-5) 0 0; color: var(--sc-ink-soft); max-width: 38ch; font-size: var(--sc-t-lg); line-height: 1.5; }
.stempel__feld {
  margin: 0; display: grid; grid-template-columns: 1fr 1fr;
  border: 1.5px solid var(--sc-ink); background: var(--papier);
}
.stempel__feld > div { padding: var(--sc-3) var(--sc-4) var(--sc-4); border-bottom: 1px solid var(--linie); }
.stempel__feld > div:nth-child(odd) { border-right: 1px solid var(--linie); }
.stempel__feld > div:nth-last-child(-n+2) { border-bottom: 0; }
.stempel__feld dt { font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); color: var(--sc-ink-soft); letter-spacing: 0.04em; }
.stempel__feld dd { margin: var(--sc-1) 0 0; font-weight: 500; letter-spacing: -0.01em; }

/* ----------------------------------------------------------- 6 · Schluss -- */
.schluss__buehne {
  display: grid; grid-template-rows: 1fr auto; justify-items: center; align-items: center;
  padding: calc(var(--bar-h) + var(--sc-5)) var(--sc-gutter) var(--sc-4);
}
.beleg {
  width: min(100%, 40rem);
  background: var(--papier); border: 1px solid var(--linie); border-radius: 4px;
  box-shadow: var(--sc-e3), var(--sc-edge);
  padding: clamp(1.5rem, 4vw, 2.75rem);
}
.beleg__kopf { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--sc-4); }
.beleg__titel { margin: 0; font-size: clamp(1.8rem, 1.2rem + 2vw, 2.8rem); font-weight: 600; letter-spacing: -0.035em; line-height: 1; }
.beleg__stempel {
  margin: 0; padding: 4px 12px; border: 2px solid var(--sc-accent); color: var(--sc-accent);
  font-family: var(--sc-font-mono); font-size: var(--sc-t-sm); letter-spacing: 0.1em; text-transform: uppercase;
  rotate: -4deg; border-radius: 3px;
}
.beleg__text { margin: var(--sc-4) 0 0; color: var(--sc-ink-soft); max-width: 40ch; font-size: var(--sc-t-lg); line-height: 1.45; }
.beleg__perforation {
  margin: var(--sc-6) calc(clamp(1.5rem, 4vw, 2.75rem) * -1) var(--sc-5);
  border-top: 1.5px dashed color-mix(in oklab, var(--sc-ink) 45%, transparent);
}
.antwort__titel { margin: 0 0 var(--sc-3); font-family: var(--sc-font-mono); font-size: var(--sc-t-xs); letter-spacing: 0.06em; color: var(--sc-ink-soft); }
.antwort__felder { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sc-3) var(--sc-4); margin-bottom: var(--sc-5); }
.feld { display: grid; gap: 4px; font-size: var(--sc-t-sm); color: var(--sc-ink-soft); }
.feld:nth-child(3) { grid-column: 1 / -1; }
.feld input {
  min-height: 44px; padding: 0 var(--sc-3);
  background: var(--sc-surface); color: var(--sc-ink);
  border: 1px solid color-mix(in oklab, var(--sc-ink) 30%, transparent); border-radius: var(--sc-r-sm);
  font-size: 16px;
  transition: border-color 140ms var(--sc-ease-out);
}
.feld input:hover { border-color: color-mix(in oklab, var(--sc-ink) 55%, transparent); }
.feld input:focus-visible { outline: 2px solid var(--sc-accent); outline-offset: 1px; border-color: var(--sc-accent); }
.feld--falle { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.antwort__status { margin: var(--sc-3) 0 0; min-height: 1.5em; font-size: var(--sc-t-sm); color: var(--sc-ink); }
.antwort__status.fehler { color: #B42318; }
.antwort.gesendet .antwort__felder, .antwort.gesendet .knopf { display: none; }
.antwort.gesendet .antwort__status { font-size: var(--sc-t-lg); font-weight: 500; letter-spacing: -0.01em; }

.fuss {
  display: flex; gap: var(--sc-5); justify-content: space-between; width: 100%;
  font-size: var(--sc-t-xs); color: var(--sc-ink-soft); padding-top: var(--sc-4);
}
.fuss a { color: var(--sc-ink); }

/* -------------------------------------------------------------- Handy ---- */
@media (max-width: 860px) {
  :root { --bar-h: 56px; }
  .bar__marke svg { height: 28px; }
  .bar__nav { gap: var(--sc-4); }

  .held { align-items: end; }
  .held__plan { width: 116vw; right: -30vw; top: calc(var(--bar-h) + 2vh); opacity: 0.55; }
  .held__titel { font-size: clamp(2.4rem, 1.4rem + 5vw, 3.4rem); }
  .held__lede { font-size: var(--sc-t-base); }

  .abend__buehne { grid-template-columns: 1fr; grid-template-rows: auto 1fr; gap: var(--sc-5); align-content: center; }
  .abend__strich { max-width: 300px; justify-self: start; }
  .abend__zeilen { min-height: 11rem; }

  .peak__buehne {
    grid-template-columns: 1fr; grid-template-rows: auto auto 1fr;
    row-gap: var(--sc-3); padding-top: calc(var(--bar-h) + var(--sc-3)); padding-bottom: var(--sc-3);
  }
  .peak__titel { font-size: 1.35rem; }
  .plan--peak { max-height: 34svh; }
  .plankopf { display: none; }
  .devi { align-self: start; padding: var(--sc-3) var(--sc-4); }
  .devi__kopf { margin-bottom: var(--sc-1); }
  .devi__tabelle { font-size: 0.8rem; }
  .devi__tabelle thead { display: none; }
  .devi__tabelle td, .devi__tabelle tbody th { padding: 4px 0; }
  .devi__tabelle .code { font-size: 0.72rem; }
  .devi__tabelle tfoot tr:not(.devi__total) { display: none; }
  .peak__schluss { grid-column: 1; position: absolute; left: var(--sc-gutter); right: var(--sc-gutter); bottom: var(--sc-3); font-size: var(--sc-t-base); background: var(--sc-canvas); padding: var(--sc-2) 0; }

  .stempel__raster { grid-template-columns: 1fr; align-items: start; }
  .stempel__feld { grid-template-columns: 1fr; }
  .stempel__feld > div:nth-child(odd) { border-right: 0; }
  .stempel__feld > div:nth-last-child(2) { border-bottom: 1px solid var(--linie); }

  .antwort__felder { grid-template-columns: 1fr; }
  .beleg__perforation { margin-block: var(--sc-4) var(--sc-4); }
  .beleg__text { font-size: var(--sc-t-base); }
  .fuss { flex-direction: column; gap: var(--sc-1); }
}
@media (max-width: 420px) {
  .bar__link { display: none; }
}