:root {
  --papier: #ECEAE3;
  --graphit: #202326;
  --t1: rgba(32, 35, 38, .92);
  --t2: rgba(32, 35, 38, .68);
  --t3: rgba(32, 35, 38, .48);
  --linie: rgba(32, 35, 38, .32);
  --gruen: #34483F;
  --rot: #C93A22;
  --hell1: rgba(236, 234, 227, .92);
  --hell2: rgba(236, 234, 227, .68);
  --hell3: rgba(236, 234, 227, .48);

  --zeichen: "B612", "Helvetica Neue", sans-serif;
  --mono: "B612 Mono", ui-monospace, monospace;
  --text: "Public Sans", "Helvetica Neue", sans-serif;

  --rand: 20px;
  --luft: 72px;
  --expo: cubic-bezier(0.19, 1, 0.22, 1);
}
@media (min-width: 900px) {
  :root { --rand: 40px; --luft: 120px; }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--papier);
  color: var(--t1);
  font: 400 17px/1.55 var(--text);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
h1, h2, p, dl, dd, figure { margin: 0; }
:focus-visible { outline: 2px solid var(--rot); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* Zeichnungsrahmen */
.rahmen {
  position: fixed; inset: 8px; z-index: 50; pointer-events: none;
  border: 1px solid var(--linie);
  display: none;
}
.rahmen span {
  position: absolute; top: -1px; transform: translate(-50%, -100%);
  font: 400 10px/1 var(--mono); color: var(--t3); padding-bottom: 2px;
}
.rahmen span:nth-child(1) { left: 12.5%; }
.rahmen span:nth-child(2) { left: 37.5%; }
.rahmen span:nth-child(3) { left: 62.5%; }
.rahmen span:nth-child(4) { left: 87.5%; }
@media (min-width: 900px) {
  .rahmen { display: block; inset: 12px; }
}
.h1-unter span { display: block; }
@media (min-width: 900px) { .h1-unter span { display: inline; } }

/* Kopf: Konstruktionslinien */
.kopf {
  position: relative;
  display: flex; justify-content: space-between; align-items: stretch;
  max-width: 1200px; margin: 0 auto;
  padding: 0 var(--rand);
  font: 400 13px/1.2 var(--mono);
}
.kopf::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--linie);
}
.kopf a { text-decoration: none; padding: 16px 0; position: relative; }
.kopf-name { display: flex; gap: 8px; align-items: baseline; color: var(--t1); }
.kopf-name span { color: var(--t3); }
.kopf-mail { color: var(--t1); padding-left: 16px !important; border-left: 1px solid var(--linie); }
.kopf-mail::before, .kopf-mail::after {
  content: "+"; position: absolute; left: -4.5px; font: 400 11px/1 var(--mono); color: var(--t2);
}
.kopf-mail::before { top: -6px; }
.kopf-mail::after { bottom: -6px; }
.kopf-mail:hover { color: var(--rot); transition: color 150ms ease-out; }
@media (max-width: 420px) { .kopf-name span { display: none; } }

/* Blatt */
.blatt {
  position: relative;
  max-width: 1200px; margin: 0 auto;
  padding: var(--luft) var(--rand);
}
.blatt + .blatt { border-top: 1px solid var(--linie); }
.blatt-nr {
  position: absolute; right: var(--rand); top: var(--luft);
  writing-mode: vertical-rl;
  font: 400 11px/1 var(--mono); color: var(--t3); letter-spacing: .04em;
}
h2 {
  font: 400 40px/1.05 var(--zeichen); letter-spacing: -.03em; color: var(--t1);
  margin-bottom: 24px;
}
@media (min-width: 900px) { h2 { font-size: 64px; } }
.text { max-width: 60ch; color: var(--t2); }

/* Blatt 1 */
.einstieg {
  padding-top: 24px; padding-bottom: 64px;
  display: flex; flex-direction: column; gap: 32px;
}
.einstieg .blatt-nr { top: 24px; }
.zeile-quelle { display: block; color: var(--t3); }
.zeile {
  font: 400 12px/1.5 var(--mono); color: var(--t2);
  padding-right: 24px; min-height: 3em;
}
.zeile-cursor {
  display: inline-block; width: .55em; height: 1.1em; margin-left: 2px;
  background: var(--rot); vertical-align: -0.2em;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.zeichnung { position: relative; padding-top: 32px; }
.mass {
  position: absolute; top: 0; left: 0; right: 0; height: 24px;
}
.mass i {
  position: absolute; left: 0; right: 0; top: 18px; height: 1px; background: var(--graphit);
  transform-origin: 50% 50%;
}
.mass i::before, .mass i::after {
  content: ""; position: absolute; top: -4px; width: 0; height: 0;
  border-top: 4.5px solid transparent; border-bottom: 4.5px solid transparent;
}
.mass i::before { left: 0; border-right: 10px solid var(--graphit); }
.mass i::after { right: 0; border-left: 10px solid var(--graphit); }
.mass::before, .mass::after {
  content: ""; position: absolute; top: 6px; height: 34px; width: 1px; background: var(--linie);
}
.mass::before { left: 0; }
.mass::after { right: 0; }
.mass b {
  position: absolute; left: 50%; top: 0; transform: translateX(-50%);
  font: 400 12px/1 var(--mono); color: var(--t1);
  background: var(--papier); padding: 0 8px; white-space: nowrap;
}

h1 { display: block; font-weight: 400; }
.wort-maske { display: block; overflow: hidden; padding-bottom: .24em; margin-bottom: -.24em; }
.wort {
  display: inline-block; white-space: nowrap;
  font: 400 var(--wort, 12.2vw)/1 var(--zeichen); letter-spacing: -.03em; color: var(--graphit);
}
.hinweise { display: flex; gap: 16px; padding-left: 12%; margin-top: 4px; }
.hw {
  position: relative; flex: 1 1 0; min-width: 0;
  padding: 32px 0 0 12px;
  font: 400 12px/1.35 var(--mono); color: var(--t1);
}
.hw + .hw { flex: 1.1 1 0; }
.hw span { display: block; color: var(--t3); }
.hw::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 4px; width: 1px;
  background: var(--graphit); transform-origin: 50% 0;
}
.hw::after {
  content: ""; position: absolute; left: -3px; top: -3px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--graphit);
}
.h1-unter {
  margin-top: 24px;
  font: 400 22px/1.2 var(--zeichen); letter-spacing: -.01em; color: var(--t1);
}

.einstieg-unten { display: flex; flex-direction: column; gap: 24px; align-items: flex-start; }
.lead { max-width: 52ch; color: var(--t2); }

.knopf {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 24px;
  background: var(--rot); color: var(--papier);
  font: 500 16px/1 var(--text); text-decoration: none;
  border: 0; border-radius: 2px; cursor: pointer;
  transition: background-color 150ms ease-out;
}
.knopf:hover { background: #A92E19; }

.schriftfeld {
  display: grid; grid-template-columns: 1fr 1fr;
  border: 1px solid var(--graphit);
}
.schriftfeld div { padding: 8px; border-right: 1px solid var(--linie); border-bottom: 1px solid var(--linie); }
.schriftfeld div:nth-child(2n) { border-right: 0; }
.schriftfeld div:nth-last-child(-n+2) { border-bottom: 0; }
.schriftfeld dt { font: 400 10px/1.3 var(--mono); color: var(--t3); }
.schriftfeld dd { font: 400 12px/1.35 var(--mono); color: var(--t1); margin-top: 2px; }

@media (min-width: 900px) {
  .einstieg {
    display: grid; grid-template-columns: 1fr 440px; grid-template-rows: auto 1fr auto;
    column-gap: 64px; row-gap: 40px; padding-top: 40px; padding-bottom: 64px;
    min-height: calc(100svh - 52px);
  }
  .einstieg .blatt-nr { top: 40px; }
  .zeile { grid-column: 1 / -1; font-size: 13px; }
  .zeichnung { grid-column: 1 / -1; align-self: center; padding-top: 40px; }
  .mass b { font-size: 13px; }
  .hinweise { padding-left: 14%; gap: 64px; max-width: 900px; }
  .hw { padding-top: 48px; font-size: 13px; flex: 0 0 auto; }
  .hw + .hw { flex: 0 0 auto; }
  .h1-unter { font-size: 32px; margin-top: 64px; }
  .einstieg-unten { align-self: end; }
  .schriftfeld { align-self: end; margin-top: 0; }
  .schriftfeld div { padding: 12px 16px; }
  .schriftfeld dd { font-size: 13px; }
}

/* Blatt 2: Stückliste */
.stueckliste {
  width: 100%; max-width: 820px; margin-top: 40px;
  border-collapse: collapse; border-top: 1px solid var(--graphit); border-bottom: 1px solid var(--graphit);
}
.stueckliste th {
  text-align: left; font: 400 11px/1 var(--mono); color: var(--t3);
  padding: 8px 8px 8px 0; border-bottom: 1px solid var(--graphit);
}
.stueckliste td { padding: 8px 8px 8px 0; border-bottom: 1px solid var(--linie); vertical-align: middle; }
.stueckliste tr:last-child td { border-bottom: 0; }
.stueckliste td:first-child {
  width: 48px; font: 400 13px/1 var(--mono); color: var(--t2);
}
.stueckliste td:first-child::before { content: ""; }
.stueckliste td:nth-child(2) { font-size: 17px; color: var(--t1); }
.stueckliste tbody tr:last-child td:nth-child(2) { color: var(--t3); }
.stueckliste td:last-child { width: 48px; padding-right: 0; text-align: right; }
.haken {
  width: 40px; height: 40px; padding: 7px; cursor: pointer;
  background: transparent; border: 1px solid var(--graphit); border-radius: 2px;
  transition: border-color 150ms ease-out;
}
.haken:hover { border-color: var(--rot); }
.haken svg { width: 100%; height: 100%; display: block; overflow: visible; }
.haken path {
  fill: none; stroke: var(--rot); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 1; stroke-dashoffset: 1;
  transition: stroke-dashoffset 400ms var(--expo);
}
.haken[aria-pressed="true"] path { stroke-dashoffset: 0; }
.zaehler { margin-top: 16px; font: 400 12px/1 var(--mono); color: var(--t3); }

/* Blatt 3: Lage */
.lage { display: grid; gap: 40px; }
.koord { margin-top: 24px; font: 400 13px/1.4 var(--mono); color: var(--t1); }
.koord span { color: var(--t3); margin-right: 8px; }
.platzhalter {
  display: inline-block; margin-top: 16px; padding: 8px 12px;
  border: 1px dashed var(--t3); font: 400 12px/1 var(--mono); color: var(--t2);
}
.lage-plan { border: 1px solid var(--graphit); background: rgba(255, 255, 255, .25); }
.lage-plan svg { display: block; width: 100%; height: auto; }
.lage-plan figcaption {
  border-top: 1px solid var(--linie); padding: 8px 12px;
  font: 400 11px/1.3 var(--mono); color: var(--t3);
}
.lage-bau path { fill: rgba(32, 35, 38, .10); stroke: rgba(32, 35, 38, .45); stroke-width: 1; }
.lage-bach path { fill: none; stroke: rgba(32, 35, 38, .4); stroke-width: 1.2; stroke-dasharray: 6 4; }
.lage-str path {
  fill: none; stroke: var(--graphit); stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 1; stroke-dashoffset: 0;
}
.lage-h path { stroke-width: 3.2; }
.lage-m path { stroke-width: 2; }
.lage-w path { stroke-width: 1; stroke: rgba(32, 35, 38, .55); }
.lage-ort circle { fill: none; stroke: var(--rot); stroke-width: 2; }
.lage-ort path { stroke: var(--rot); stroke-width: 1.5; }
.lage-name { font: 400 32px var(--mono); fill: var(--graphit); paint-order: stroke; stroke: var(--papier); stroke-width: 6px; }
.lage-str-name { font: 400 24px var(--mono); fill: var(--t2); paint-order: stroke; stroke: var(--papier); stroke-width: 5px; }
.lage-nord path { fill: var(--graphit); }
.lage-nord text, .lage-massstab text { font: 400 24px var(--mono); fill: var(--graphit); text-anchor: middle; }
.lage-massstab path { stroke: var(--graphit); stroke-width: 2; fill: none; }

.js .lage .lage-str path { stroke-dashoffset: 1; transition: stroke-dashoffset 1400ms var(--expo); }
.js .lage.zu-sehen .lage-str path { stroke-dashoffset: 0; }
.js .lage .lage-ort, .js .lage .lage-name { opacity: 0; transition: opacity 400ms ease-out 900ms; }
.js .lage.zu-sehen .lage-ort, .js .lage.zu-sehen .lage-name { opacity: 1; }

@media (min-width: 900px) {
  .lage { grid-template-columns: 1fr 1.3fr; gap: 64px; align-items: start; }
}

/* Blatt 4: Kontakt */
.kontakt {
  max-width: none; margin: 0;
  background: var(--gruen); color: var(--hell1);
  padding-left: max(var(--rand), calc((100vw - 1200px) / 2 + var(--rand)));
  padding-right: max(var(--rand), calc((100vw - 1200px) / 2 + var(--rand)));
}
.kontakt .blatt-nr { color: var(--hell3); right: max(var(--rand), calc((100vw - 1200px) / 2 + var(--rand))); }
.kontakt h2 { color: var(--hell1); }
.kontakt .text { color: var(--hell2); margin-top: 24px; }
.kontakt-mail {
  display: inline-block;
  font: 400 clamp(26px, 7.4vw, 72px)/1.1 var(--zeichen); letter-spacing: -.03em;
  color: var(--hell1); text-decoration: none;
  border-bottom: 1px solid var(--hell3); padding-bottom: 8px;
  transition: border-color 150ms ease-out;
}
.kontakt-mail:hover { border-color: var(--rot); }

.auftrag {
  margin-top: 40px; max-width: 720px;
  border: 1px solid var(--hell3);
  display: grid; grid-template-columns: 1fr 1fr;
}
.auftrag-kopf {
  grid-column: 1 / -1; display: flex; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--hell3);
  font: 400 12px/1.2 var(--mono); color: var(--hell2);
}
.feld {
  display: flex; flex-direction: column; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid rgba(236, 234, 227, .2);
}
.feld-links { border-right: 1px solid rgba(236, 234, 227, .2); }
.feld-gross { grid-column: 1 / -1; }
.feld span { font: 400 11px/1.2 var(--mono); color: var(--hell3); }
.feld input, .feld textarea, .feld select {
  width: 100%; background: transparent; border: 0; padding: 0;
  font: 400 17px/1.4 var(--text); color: var(--hell1);
  resize: vertical; appearance: none; border-radius: 0;
}
.feld select { cursor: pointer; }
.feld select option { color: var(--graphit); }
.feld input::placeholder, .feld textarea::placeholder { color: rgba(236, 234, 227, .38); }
.feld:focus-within { background: rgba(236, 234, 227, .06); }
.feld input:focus-visible, .feld textarea:focus-visible, .feld select:focus-visible { outline: none; }
.auftrag .knopf { grid-column: 1 / -1; margin: 16px 16px 8px; justify-self: start; }
.auftrag-hinweis { grid-column: 1 / -1; padding: 0 16px 16px; font-size: 14px; color: var(--hell3); }

.adresse {
  margin-top: 40px; font: 400 14px/1.6 var(--mono); font-style: normal; color: var(--hell2);
}

@media (min-width: 900px) {
  .kontakt { display: grid; grid-template-columns: 1fr 1fr; column-gap: 64px; align-items: start; }
  .kontakt h2, .kontakt-mail { grid-column: 1 / -1; justify-self: start; }
  .kontakt .text { grid-column: 1; }
  .auftrag { grid-column: 2; grid-row: 3 / span 2; margin-top: 24px; }
  .adresse { grid-column: 1; }
}

/* Fuss */
.fuss {
  max-width: 1200px; margin: 0 auto; padding: 24px var(--rand) 40px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
  font: 400 12px/1.4 var(--mono); color: var(--t3);
}
.fuss a { color: var(--t1); display: inline-block; padding: 8px 0; margin: -8px 0; }
.fuss p { line-height: 32px; }

/* Laden: Zeichnung entsteht */
.js .mass i { transform: scaleX(0); transition: transform 900ms var(--expo) 1150ms; }
.js .mass b, .js .mass::before, .js .mass::after { opacity: 0; transition: opacity 400ms ease-out 1500ms; }
.js .wort { transform: translateY(105%); transition: transform 1000ms var(--expo) 950ms; }
.js .h1-unter, .js .einstieg-unten, .js .schriftfeld { opacity: 0; transform: translateY(16px); transition: opacity 600ms ease-out, transform 900ms var(--expo); }
.js .h1-unter { transition-delay: 1700ms; }
.js .einstieg-unten { transition-delay: 1800ms; }
.js .schriftfeld { transition-delay: 1900ms; }
.js .hw::before { transform: scaleY(0); transition: transform 800ms var(--expo) 1650ms; }
.js .hw::after { transform: scale(0); transition: transform 300ms var(--expo) 1600ms; }
.js .hw { color: transparent; transition: color 400ms ease-out 1950ms; }
.js .hw span { opacity: 0; transition: opacity 400ms ease-out 1950ms; }

.bereit .mass i { transform: scaleX(1); }
.bereit .mass b, .bereit .mass::before, .bereit .mass::after, .bereit .hw span { opacity: 1; }
.bereit .hw::before, .bereit .hw::after { transform: none; }
.bereit .hw { color: var(--t1); }
.bereit .wort { transform: none; }
.bereit .h1-unter, .bereit .einstieg-unten, .bereit .schriftfeld { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .js .mass i, .js .wort, .js .h1-unter, .js .einstieg-unten, .js .schriftfeld { transform: none; opacity: 1; }
  .js .mass b, .js .mass::before, .js .mass::after, .js .hw span { opacity: 1; }
  .js .hw::before, .js .hw::after { transform: none; }
  .js .hw { color: var(--t1); }
  .js .lage .lage-str path { stroke-dashoffset: 0; }
  .js .lage .lage-ort, .js .lage .lage-name { opacity: 1; }
  .zeile-cursor { display: none; }
}