/* Buholzer – Entwurf. Idee: die Seite als Bauplan (Plankopf, Leistungsverzeichnis). */

:root {
  --papier: #e8e9e5;
  --papier-2: #dfe0db;
  --tinte: 28 31 35;               /* #1c1f23 */
  --t1: rgb(var(--tinte) / 0.92);
  --t2: rgb(var(--tinte) / 0.66);
  --t3: rgb(var(--tinte) / 0.46);
  --linie: rgb(var(--tinte) / 0.2);
  --linie-stark: rgb(var(--tinte) / 0.78);
  --rot: #c0391f;
  --rot-dunkel: #a32f18;

  --sans: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "Red Hat Mono", ui-monospace, Menlo, monospace;

  --s1: 8px; --s2: 16px; --s3: 24px; --s4: 40px; --s5: 64px; --s6: 104px;
  --rand: 20px;
  --breite: 1200px;
  --radius: 2px;

  --expo: cubic-bezier(0.19, 1, 0.22, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--papier);
  color: var(--t1);
  font: 400 17px/1.5 var(--sans);
  font-stretch: 100%;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--rot); outline-offset: 3px; }

.zahl { font-family: var(--mono); font-weight: 400; letter-spacing: 0; font-size: 0.92em; }

.wrap {
  width: 100%;
  max-width: calc(var(--breite) + 2 * var(--rand));
  margin: 0 auto;
  padding: 0 var(--rand);
}

/* ---------- Kopf ---------- */
.kopf {
  position: sticky; top: 0; z-index: 100;
  background: var(--papier);
  border-bottom: 1px solid transparent;
  transition: border-color 150ms ease-out;
}
.kopf.ist-gerollt { border-bottom-color: var(--linie); }
.kopf__innen { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.marke {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 0; text-decoration: none;
  font-weight: 600; font-stretch: 82%; font-size: 20px; letter-spacing: -0.02em;
}
.marke__zeichen { width: 14px; height: 14px; background: var(--rot); }

.nav { display: flex; gap: var(--s3); font-size: 15px; }
.nav a { padding: 10px 0; text-decoration: none; color: var(--t2); transition: color 150ms ease-out; }
.nav a:hover { color: var(--t1); }
.nav a:not(.nav__kontakt) { display: none; }
.nav__kontakt { color: var(--t1) !important; text-decoration: underline !important; text-decoration-color: var(--linie-stark) !important; text-underline-offset: 6px; }

/* ---------- Start: Plan mit Plankopf ---------- */
.start {
  position: relative;
  /* Planraster: feine Linien wie auf Millimeterpapier, nur hier oben */
  background-image:
    linear-gradient(to right, rgb(var(--tinte) / 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgb(var(--tinte) / 0.055) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: -1px -1px;
  border-bottom: 1px solid var(--linie);
}
.start__innen {
  min-height: calc(100svh - 64px);
  display: flex; flex-direction: column;
  gap: var(--s4);
  padding-top: var(--s4);
  padding-bottom: var(--s3);
}

.titel {
  margin: 0;
  font-weight: 500;
  font-stretch: 80%;
  font-size: clamp(46px, 11.8vw, 112px);
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--t1);
}
.zeile { display: block; overflow: hidden; padding-bottom: 0.06em; margin-bottom: -0.06em; }
.zeile > span { display: block; }

.start__unten { flex: 1; display: flex; flex-direction: column; justify-content: space-between; gap: var(--s4); }

.lead { margin: 0 0 var(--s3); max-width: 34ch; color: var(--t2); font-size: 18px; }

.knopf {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 var(--s3);
  background: var(--rot); color: #f6f4f1;
  border-radius: var(--radius);
  font-weight: 500; font-size: 16px; text-decoration: none;
  transition: background-color 150ms ease-out;
}
.knopf:hover { background: var(--rot-dunkel); }
.knopf--linie {
  background: transparent; color: var(--t1);
  box-shadow: inset 0 0 0 1px var(--linie-stark);
  transition: background-color 150ms ease-out, color 150ms ease-out;
}
.knopf--linie:hover { background: var(--t1); color: var(--papier); }

/* Plankopf = Schriftfeld unten rechts auf jedem Bauplan */
.plankopf {
  width: 100%;
  border-collapse: collapse;
  background: var(--papier);
  font-size: 15px;
  position: relative;
}
.plankopf::before,
.plankopf::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 1px; background: var(--linie-stark);
  transform-origin: top;
}
.plankopf::before { left: 0; }
.plankopf::after { right: 0; }
.plankopf tr { position: relative; }
.plankopf th, .plankopf td {
  padding: 9px 12px;
  text-align: left; vertical-align: baseline;
  border-top: 1px solid var(--linie-stark);
}
.plankopf tr:last-child th, .plankopf tr:last-child td { border-bottom: 1px solid var(--linie-stark); }
.plankopf th { width: 30%; font-weight: 400; color: var(--t3); font-size: 13px; border-right: 1px solid var(--linie); }
.plankopf td { color: var(--t1); }

.plankopf__massstab td { display: flex; align-items: center; gap: 12px; }
.balken { display: inline-flex; height: 8px; width: 120px; border: 1px solid var(--linie-stark); }
.balken i { flex: 1; }
.balken i:nth-child(odd) { background: var(--t1); transform-origin: left; }

/* ---------- Abschnitte ---------- */
.abschnitt { padding: var(--s5) 0; border-bottom: 1px solid var(--linie); }
.raster { display: grid; gap: var(--s3); }

h2 {
  margin: 0;
  font-weight: 500; font-stretch: 80%;
  font-size: 34px; line-height: 1.05; letter-spacing: -0.03em;
}

.raster__inhalt { min-width: 0; }

/* Leistungsverzeichnis */
.lv { width: 100%; border-collapse: collapse; }
.lv th {
  text-align: left; font-weight: 400; font-size: 13px; color: var(--t3);
  padding: 0 0 var(--s1); border-bottom: 1px solid var(--linie-stark);
}
.lv td { padding: var(--s2) 0; border-bottom: 1px solid var(--linie); vertical-align: baseline; }
.lv th:first-child, .lv td:first-child { width: 64px; color: var(--t3); }
.lv td:nth-child(2) { font-weight: 500; font-size: 20px; letter-spacing: -0.015em; padding-right: var(--s2); }
.lv td:nth-child(3) { color: var(--t2); }
.lv tbody tr { transition: background-color 150ms ease-out; }

/* Handy: Beschrieb unter die Leistung */
.lv thead th:nth-child(3) { display: none; }
.lv tbody tr { display: grid; grid-template-columns: 64px 1fr; border-bottom: 1px solid var(--linie); padding: var(--s2) 0; }
.lv tbody td { border: 0; padding: 0; }
.lv tbody td:nth-child(3) { grid-column: 2; margin-top: 4px; }
.lv thead tr { display: grid; grid-template-columns: 64px 1fr; border-bottom: 1px solid var(--linie-stark); }
.lv thead th { border: 0; }

.lv--leer td:nth-child(2) { color: var(--t3); font-weight: 400; }
.lv--leer tbody tr { border-bottom-style: dashed; }

.hinweis { margin: var(--s3) 0 0; font-size: 15px; color: var(--t3); }

/* Person */
.person { display: grid; gap: var(--s4); }
.person__foto {
  aspect-ratio: 4 / 5; max-width: 320px;
  border: 1px dashed var(--linie-stark);
  display: flex; align-items: flex-end; padding: var(--s2);
  background:
    linear-gradient(to top right, transparent calc(50% - 0.5px), var(--linie) 50%, transparent calc(50% + 0.5px)),
    linear-gradient(to top left, transparent calc(50% - 0.5px), var(--linie) 50%, transparent calc(50% + 0.5px));
  color: var(--t3); font-size: 14px;
}
.person__foto span { background: var(--papier); padding: 2px 6px; }
.person__text p { margin: 0 0 var(--s2); max-width: 60ch; color: var(--t2); }
.person__text .aussage {
  font-weight: 450; font-stretch: 90%;
  font-size: 26px; line-height: 1.2; letter-spacing: -0.02em;
  color: var(--t1); margin-bottom: var(--s3); max-width: 24ch;
}

/* Kontakt */
.kontakt { display: grid; gap: var(--s4); }
.kontakt__adresse {
  font-style: normal;
  font-weight: 500; font-stretch: 80%;
  font-size: 34px; line-height: 1.1; letter-spacing: -0.03em;
}
.kontakt__firma { display: block; margin-bottom: var(--s1); font-weight: 400; font-stretch: 100%; font-size: 17px; letter-spacing: 0; color: var(--t2); }
.kontakt__wege { display: flex; flex-direction: column; align-items: flex-start; gap: var(--s3); }
.platzhalter { margin: 0; color: var(--t3); border-bottom: 1px dashed var(--linie-stark); padding-bottom: 2px; }

/* Fuss */
.fuss { padding: var(--s4) 0; font-size: 14px; color: var(--t3); }
.fuss__innen { display: flex; flex-direction: column; gap: var(--s1); }

/* ---------- Computer ---------- */
@media (min-width: 900px) {
  :root { --rand: 40px; }
  body { font-size: 18px; }
  .nav a:not(.nav__kontakt) { display: inline; }
  .kopf__innen { height: 72px; }
  .start__innen { min-height: calc(100svh - 72px); max-height: 1000px; padding-top: var(--s5); padding-bottom: var(--s4); }
  .start__innen { justify-content: space-between; }
  .start__unten { flex: none; display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--s3); align-items: end; }
  .start__text { grid-column: 1 / span 5; }
  .plankopf { grid-column: 7 / span 6; font-size: 16px; }
  .plankopf th { width: 34%; }

  .abschnitt { padding: var(--s6) 0; }
  .raster { grid-template-columns: repeat(12, 1fr); gap: var(--s3); }
  .raster > h2 { grid-column: 1 / span 4; }
  .raster__inhalt { grid-column: 5 / span 8; }
  h2 { font-size: 48px; }

  .lv thead tr, .lv tbody tr { grid-template-columns: 80px 1fr 1.4fr; }
  .lv thead th:nth-child(3) { display: block; }
  .lv tbody td:nth-child(3) { grid-column: auto; margin-top: 0; }
  .lv th:first-child, .lv td:first-child { width: 80px; }
  .lv tbody tr { padding: var(--s3) 0; }
  .lv:not(.lv--leer) tbody tr:hover { background: var(--papier-2); }
  .lv td:nth-child(2) { font-size: 24px; }

  .person { grid-template-columns: 5fr 7fr; gap: var(--s3); align-items: start; }
  .person__foto { max-width: none; }
  .person__text { padding-left: var(--s3); }
  .person__text .aussage { font-size: 32px; }

  .kontakt { grid-template-columns: 1fr 1fr; align-items: end; }
  .kontakt__adresse { font-size: 48px; }

  .fuss__innen { flex-direction: row; justify-content: space-between; }
}

/* ---------- Bewegung (nur wenn erlaubt) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .zeile > span { transform: translateY(105%); }
  .js .plankopf th, .js .plankopf td { opacity: 0; }
  .js .plankopf::before, .js .plankopf::after { transform: scaleY(0); }
  .js .balken i:nth-child(odd) { transform: scaleX(0); }

  .js.bereit .zeile > span {
    transform: none;
    transition: transform 1000ms var(--expo);
  }
  .js.bereit .zeile:nth-child(2) > span { transition-delay: 90ms; }
  .js.bereit .zeile:nth-child(3) > span { transition-delay: 180ms; }

  .js.bereit .plankopf::before, .js.bereit .plankopf::after {
    transform: none; transition: transform 800ms var(--expo) 300ms;
  }
  .js.bereit .plankopf th, .js.bereit .plankopf td {
    opacity: 1; transition: opacity 600ms ease-out calc(400ms + var(--i, 0) * 80ms);
  }
  .js.bereit .balken i:nth-child(odd) {
    transform: none; transition: transform 700ms var(--expo) calc(900ms + var(--j, 0) * 90ms);
  }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}