/* ==========================================================================
   neuraum Bau — Stylesheet

   Farben:  Petrol #115467 (aus dem Logo), Signalgelb als einziger Akzent,
            Betongrau als Flächenfarbe.

   Schrift: drei Rollen, sonst nichts.
            Archivo         Überschriften, Bedienelemente, Kleinlabels
            Karla           Fließtext
            JetBrains Mono  ausschließlich Eyebrows, Ziffern und Messwerte
                            (.eyebrow .fact-key .step-no .gantt-scale .gantt-value)
   ========================================================================== */

:root {
  --petrol:       #115467;
  --petrol-mid:   #0D4254;
  --petrol-deep:  #082B38;
  --petrol-ink:   #061F29;
  --signal:       #F2C230;
  --signal-dark:  #D9A916;

  --paper:        #FFFFFF;
  --beton:        #EDEEEA;
  --beton-2:      #E1E3DD;
  --line:         #D5D8D1;
  --line-dark:    rgba(255,255,255,.16);

  --ink:          #15232A;
  --muted:        #5C6E75;
  --muted-dark:   #9FB4BC;

  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Karla", "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  --wrap:  1240px;
  --gutter: clamp(20px, 5vw, 56px);
  --radius: 3px;
  --header-h: 76px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(16px, .4vw + 15px, 17.5px);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.08; letter-spacing: -.018em; margin: 0; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; }

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute; left: 12px; top: -80px; z-index: 200;
  background: var(--petrol); color: #fff; padding: 12px 18px;
  text-decoration: none; transition: top .2s;
}
.skip-link:focus { top: 12px; }

/* ---------- Typo-Bausteine ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--petrol);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: ""; display: inline-block;
  width: 26px; height: 2px; background: var(--signal);
  vertical-align: middle; margin-right: 12px; translate: 0 -2px;
}

.lead, .sec-lead {
  font-size: 1.075rem;
  color: var(--muted);
  max-width: 62ch;
}
.sec-lead + .sec-lead { margin-top: 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .005em;
  padding: 15px 26px;
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background-color .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn-sm { padding: 11px 18px; font-size: .875rem; }

.btn-primary { background: var(--petrol); color: #fff; border-color: var(--petrol); }
.btn-primary:hover { background: var(--petrol-deep); border-color: var(--petrol-deep); }

.btn-ghost { background: transparent; color: var(--petrol); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--petrol); background: rgba(17,84,103,.05); }

.btn-signal { background: var(--signal); color: var(--petrol-ink); border-color: var(--signal); }
.btn-signal:hover { background: var(--signal-dark); border-color: var(--signal-dark); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s;
}
.site-header.is-stuck {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 28px -22px rgba(6,31,41,.55);
}
.header-inner {
  display: flex; align-items: center; gap: 28px;
  min-height: var(--header-h);
}
.brand { flex: none; line-height: 0; }
.brand img { width: 150px; height: auto; }

.nav {
  display: flex; align-items: center; gap: clamp(14px, 2vw, 30px);
  margin-left: auto;
}
.nav a {
  font-family: var(--font-display);
  font-size: .92rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  padding: 6px 0;
  position: relative;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--signal);
  transform: scaleX(0); transform-origin: left;
  transition: transform .22s var(--ease);
}
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 16px; }
.tel {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .9rem;
  text-decoration: none;
  color: var(--petrol);
  white-space: nowrap;
}
.tel:hover { text-decoration: underline; }

.burger {
  display: none;
  width: 44px; height: 44px;
  background: none; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0; cursor: pointer;
}
.burger span {
  display: block; width: 20px; height: 1.5px; margin: 4px auto;
  background: var(--ink); transition: transform .25s var(--ease), opacity .2s;
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding-top: clamp(40px, 6vw, 76px); }
.hero-grid {
  width: 100%;
  max-width: calc(var(--wrap) + ((100vw - var(--wrap)) / 2));
  margin-left: auto;
  padding-left: var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero-copy { padding-block: clamp(8px, 3vw, 40px); }
.hero h1 {
  font-size: clamp(2.4rem, 5.1vw, 4.2rem);
  letter-spacing: -.032em;
  margin-bottom: 26px;
  max-width: 15ch;
}
.hero h1 em {
  font-style: normal;
  white-space: nowrap;
  padding-inline: .06em;
  background-image: linear-gradient(to top,
    var(--signal) 0 .24em, transparent .24em);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-note {
  margin-top: 20px;
  font-size: .88rem;
  color: var(--muted);
}
.hero-media { margin: 0; }
.hero-media img {
  width: 100%;
  aspect-ratio: 12 / 8;
  object-fit: cover;
  border-radius: var(--radius) 0 0 var(--radius);
}

.factbar {
  max-width: var(--wrap);
  margin: clamp(48px, 6vw, 84px) auto 0;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}
.factbar li {
  background: var(--paper);
  display: flex; gap: 14px;
  padding: 26px clamp(14px, 2vw, 26px);
  font-size: .95rem;
  line-height: 1.45;
}
.fact-key {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--signal-dark);
  padding-top: 2px;
}

/* ==========================================================================
   Sektionen
   ========================================================================== */
.section { padding-block: clamp(68px, 8.5vw, 128px); }
.section-beton { background: var(--beton); }
.section-dark { background: var(--petrol-deep); color: #fff; }
.section-dark .eyebrow { color: var(--signal); }
.section-dark .sec-lead { color: var(--muted-dark); }

.sec-head { max-width: 780px; margin-bottom: clamp(38px, 5vw, 64px); }
.sec-head h2 {
  font-size: clamp(1.85rem, 3.4vw, 2.9rem);
  margin-bottom: 20px;
}

/* ---------- Rechtstexte (Impressum / Datenschutz) ---------- */
.legal-page { padding-block: clamp(140px, 18vw, 180px) clamp(68px, 8.5vw, 128px); }
.legal-content { max-width: 760px; }
.legal-content h2 {
  font-size: 1.3rem;
  margin-top: 44px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--signal);
}
.legal-content h2:first-child { margin-top: 0; }
.legal-content h3 {
  font-size: 1.05rem;
  margin-top: 26px;
  margin-bottom: 10px;
}
.legal-content p { color: var(--muted); margin-bottom: 14px; }
.legal-content p:last-child { margin-bottom: 0; }
.legal-content ul { margin-bottom: 14px; }
.legal-content li {
  list-style: disc;
  margin-left: 1.2em;
  color: var(--muted);
  margin-bottom: 6px;
}
.legal-content a { color: var(--petrol); text-decoration-color: var(--signal); text-underline-offset: 3px; }
.legal-content strong { color: var(--ink); }
.legal-updated { font-family: var(--font-mono); font-size: .82rem; color: var(--muted); margin-top: 34px; }

/* ---------- Versprechen ---------- */
.promise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.promise { background: var(--beton); padding: clamp(28px, 3vw, 44px); }
.promise h3 {
  font-size: 1.32rem;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--signal);
  display: inline-block;
}
.promise p { color: var(--muted); font-size: .98rem; }
.ticks { margin-top: 22px; display: grid; gap: 10px; }
.ticks li {
  position: relative;
  padding-left: 26px;
  font-size: .92rem;
  font-weight: 500;
}
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .48em;
  width: 11px; height: 6px;
  border-left: 2px solid var(--petrol);
  border-bottom: 2px solid var(--petrol);
  transform: rotate(-45deg);
}

/* ---------- Leistungen ---------- */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: clamp(20px, 2.2vw, 30px);
}
.svc {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
  display: flex; flex-direction: column;
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.svc:hover {
  border-color: var(--petrol);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -32px rgba(6,31,41,.7);
}
.svc figure { margin: 0; overflow: hidden; background: var(--beton); }
.svc figure img {
  width: 100%; aspect-ratio: 16 / 10; object-fit: cover;
  transition: transform .6s var(--ease);
}
.svc:hover figure img { transform: scale(1.045); }
.svc-body { padding: 26px 26px 30px; display: flex; flex-direction: column; flex: 1; }
.svc-body h3 { font-size: 1.16rem; margin-bottom: 12px; }
.svc-body p { color: var(--muted); font-size: .94rem; }

/* Ganze Kachel klickbar: der Button spannt sich unsichtbar darüber,
   bleibt aber das einzige fokussierbare Element. */
.svc-more {
  margin-top: auto;
  padding: 18px 0 0;
  background: none;
  border: none;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; gap: 9px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .9rem;
  color: var(--petrol);
  cursor: pointer;
  text-align: left;
}
.svc-more::after { content: ""; position: absolute; inset: 0; }
.svc-more svg { width: 16px; height: 16px; transition: transform .22s var(--ease); }
.svc:hover .svc-more svg { transform: translateX(4px); }
.svc-more:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }
/* Wo :has() unterstützt wird, umrahmt der Fokus die ganze Kachel. */
@supports selector(:has(*)) {
  .svc:has(.svc-more:focus-visible) { outline: 3px solid var(--signal); outline-offset: 3px; }
  .svc-more:focus-visible { outline: none; }
}

.svc-detail { display: none; }

.svc-cta {
  background: var(--petrol);
  border-color: var(--petrol);
  color: #fff;
  justify-content: center;
}
.svc-cta:hover { box-shadow: none; }
.svc-cta .svc-body { padding: clamp(28px, 3vw, 38px); }
.svc-cta p { color: rgba(255,255,255,.78); margin-bottom: 24px; }

/* ---------- Ablauf ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--line-dark);
  border-top: 1px solid var(--line-dark);
  margin-bottom: clamp(56px, 7vw, 96px);
}
.step {
  background: var(--petrol-deep);
  padding: 30px clamp(16px, 1.8vw, 26px) 34px;
  position: relative;
}
.step-no {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--signal);
  display: block;
  margin-bottom: 18px;
}
.step h3 { font-size: 1.1rem; margin-bottom: 12px; }
.step p { font-size: .92rem; color: var(--muted-dark); }
.step-meta {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .78rem;
  color: #fff;
  border: 1px solid var(--line-dark);
  padding: 5px 10px;
  border-radius: 999px;
}

/* ---------- Bauzeitenplan ---------- */
.gantt {
  border: 1px solid var(--line-dark);
  padding: clamp(26px, 3.4vw, 48px);
  background: rgba(255,255,255,.03);
}
.gantt-head { margin-bottom: 36px; }
.gantt-head h3 { font-size: 1.4rem; margin-bottom: 10px; }
.gantt-head p { color: var(--muted-dark); font-size: .95rem; max-width: 60ch; }

.gantt-chart { display: grid; gap: 20px; }
.gantt-scale {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--muted-dark);
  margin-left: clamp(0px, 14vw, 210px);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-dark);
}
.gantt-scale span:last-child { text-align: right; }

.gantt-row {
  display: grid;
  grid-template-columns: clamp(120px, 14vw, 210px) minmax(0, 1fr) clamp(110px, 12vw, 160px);
  align-items: center;
  gap: 18px;
}
.gantt-label { font-family: var(--font-display); font-weight: 500; font-size: .96rem; }
.gantt-track {
  position: relative;
  height: 26px;
  background-image: repeating-linear-gradient(to right,
    var(--line-dark) 0 1px, transparent 1px calc(100% / 6));
}
.gantt-bar {
  position: absolute; inset: 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .9s var(--ease);
}
.gantt.is-visible .gantt-bar { transform: scaleX(1); }
.gantt-solid,
.gantt-open { position: absolute; top: 0; bottom: 0; display: block; }
.gantt-solid { left: 0; width: var(--min); background: var(--signal); }
.gantt-open {
  left: var(--min);
  width: calc(var(--max) - var(--min));
  background-image: repeating-linear-gradient(
    -45deg, rgba(242,194,48,.55) 0 2px, transparent 2px 7px);
  border-right: 2px solid rgba(242,194,48,.75);
}
.gantt-value {
  font-family: var(--font-mono);
  font-size: .82rem;
  text-align: right;
}
.gantt-value em {
  display: block;
  font-style: normal;
  font-size: .68rem;
  color: var(--muted-dark);
  margin-top: 3px;
}
.gantt-legend {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
  font-size: .84rem;
  color: var(--muted-dark);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px;
}
.key { display: inline-block; width: 22px; height: 9px; }
.key-solid { background: var(--signal); }
.key-open {
  margin-left: 18px;
  background-image: repeating-linear-gradient(
    -45deg, rgba(242,194,48,.55) 0 2px, transparent 2px 7px);
  border: 1px solid rgba(242,194,48,.5);
}

/* ---------- Galerie ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: clamp(12px, 1.4vw, 18px);
}
.shot {
  position: relative;
  padding: 0; margin: 0;
  border: none;
  background: var(--beton);
  cursor: zoom-in;
  overflow: hidden;
  border-radius: var(--radius);
  display: block;
}
.shot-wide { grid-column: span 2; }
.shot img {
  width: 100%; height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .6s var(--ease), filter .4s;
}
.shot-wide img { aspect-ratio: 16 / 9; }
.shot:hover img { transform: scale(1.05); }
.shot-cap {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 34px 16px 14px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .82rem;
  color: #fff;
  text-align: left;
  background: linear-gradient(to top, rgba(6,31,41,.85), transparent);
}

/* ---------- Einsatzgebiet ---------- */
.gebiet-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(36px, 5vw, 80px);
  align-items: start;
}
.gebiet-copy .btn { margin-top: 30px; }
.districts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.districts li {
  background: var(--beton);
  padding: 14px 16px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: .88rem;
  color: var(--petrol);
}

/* ---------- FAQ ---------- */
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(36px, 5vw, 76px);
  align-items: start;
}
.faq-head { margin-bottom: 0; position: sticky; top: calc(var(--header-h) + 32px); }
.faq-head a { color: var(--petrol); text-decoration-color: var(--signal); text-underline-offset: 3px; }

.accordion { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-h { margin: 0; }
.acc-btn {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: none; border: none;
  padding: 22px 0;
  text-align: left;
  font-family: var(--font-display);
  font-size: 1.03rem;
  font-weight: 500;
  cursor: pointer;
  transition: color .2s;
}
.acc-btn:hover { color: var(--petrol); }
.acc-icon {
  flex: none;
  width: 22px; height: 22px;
  position: relative;
}
.acc-icon::before, .acc-icon::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  width: 13px; height: 1.8px; background: var(--petrol);
  transform: translate(-50%, -50%);
  transition: transform .28s var(--ease);
}
.acc-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.acc-btn[aria-expanded="true"] .acc-icon::after { transform: translate(-50%, -50%) rotate(0); }

.acc-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .32s var(--ease);
}
.acc-item.is-open .acc-panel { grid-template-rows: 1fr; }
.acc-inner { overflow: hidden; }
.acc-inner p {
  color: var(--muted);
  font-size: .97rem;
  padding-bottom: 26px;
  max-width: 68ch;
}

/* ---------- Kontakt ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(40px, 5vw, 84px);
  align-items: start;
}
.contact-info h2 { font-size: clamp(1.85rem, 3.4vw, 2.9rem); margin-bottom: 20px; }
.contact-list {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}
.contact-list > div { background: var(--petrol-deep); padding: 20px 22px; }
.contact-list dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 8px;
}
.contact-list dd { font-size: .96rem; }
.contact-list a { text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.3); }
.contact-list a:hover { border-color: var(--signal); }

.form {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(26px, 3.4vw, 44px);
  border-radius: var(--radius);
  display: grid;
  gap: 18px;
}
.field { display: grid; gap: 7px; }
.hp-field {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .74rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
}
.opt { text-transform: none; letter-spacing: 0; opacity: .7; }
.field input, .field select, .field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--beton);
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  padding: 13px 14px;
  width: 100%;
  transition: border-color .2s, background-color .2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus {
  background: var(--paper);
  border-color: var(--petrol);
  outline: none;
}
.field input.is-invalid, .field textarea.is-invalid { border-color: #C0392B; background: #FBF0EE; }

.check {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: .84rem; color: var(--muted);
  cursor: pointer;
}
.check input { margin-top: 3px; accent-color: var(--petrol); width: 17px; height: 17px; flex: none; }
.check a { color: var(--petrol); }
.check.is-invalid { color: #C0392B; }

.form .btn { justify-self: start; }
.form-hint {
  font-size: .84rem;
  color: var(--muted);
  line-height: 1.5;
}
.form-hint.is-ok { color: var(--petrol); }
.form-hint.is-error { color: #C0392B; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--petrol-ink); color: #fff; padding-top: clamp(56px, 6vw, 88px); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: clamp(24px, 3vw, 44px);
  padding-bottom: 56px;
}
.footer-brand img {
  width: 176px;
  margin-bottom: 22px;
}
.footer-brand p { color: var(--muted-dark); font-size: .9rem; max-width: 36ch; }
.footer-col h2 {
  font-size: .76rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 18px;
}
.footer-col ul { display: grid; gap: 11px; }
.footer-col li { font-size: .9rem; color: var(--muted-dark); }
.footer-col a { text-decoration: none; }
.footer-col a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding-block: 24px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px;
  font-size: .84rem;
  color: var(--muted-dark);
}

/* ---------- WhatsApp ---------- */
.whatsapp-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 90;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  background: #25D366; color: #fff;
  border-radius: 50%;
  box-shadow: 0 12px 30px -10px rgba(6,31,41,.6);
  transition: transform .2s var(--ease);
}
.whatsapp-fab svg { width: 28px; height: 28px; }
.whatsapp-fab:hover { transform: scale(1.07); }

/* ---------- Dialog: Gewerk-Details ---------- */
.modal {
  position: fixed; inset: 0; z-index: 210;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(0px, 4vw, 48px);
}
.modal[hidden] { display: none; }
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(6, 31, 41, .72);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity .25s var(--ease);
}
.modal.is-open .modal-backdrop { opacity: 1; }

.modal-card {
  position: relative;
  width: min(880px, 100%);
  max-height: min(88vh, 900px);
  display: flex; flex-direction: column;
  background: var(--paper);
  border-radius: var(--radius);
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(.985);
  transition: opacity .28s var(--ease), transform .28s var(--ease);
  box-shadow: 0 40px 80px -40px rgba(6, 31, 41, .8);
}
.modal.is-open .modal-card { opacity: 1; transform: none; }

.modal-close {
  position: absolute; top: 14px; right: 14px; z-index: 2;
  width: 42px; height: 42px;
  font-size: 27px; line-height: 1;
  background: rgba(255, 255, 255, .92);
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  cursor: pointer;
  transition: background-color .2s, color .2s;
}
.modal-close:hover { background: var(--petrol); color: #fff; border-color: var(--petrol); }

.modal-media { margin: 0; flex: none; }
.modal-media img {
  width: 100%;
  aspect-ratio: 21 / 8;
  object-fit: cover;
}

.modal-body {
  padding: clamp(24px, 3.2vw, 40px);
  overflow-y: auto;
  flex: 1;
}
.modal-body h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin-bottom: 22px;
}
.modal-content h4 {
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--petrol);
  margin: 30px 0 14px;
}
.modal-content p { color: var(--muted); }
.modal-content .detail-lead { font-size: 1.05rem; color: var(--ink); }
.modal-content .detail-dauer {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 12px;
  background: var(--beton);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--petrol);
}
.modal-content .ticks { gap: 12px; }

.modal-foot {
  flex: none;
  padding: 20px clamp(24px, 3.2vw, 40px);
  border-top: 1px solid var(--line);
  background: var(--beton);
  display: flex; flex-wrap: wrap; gap: 12px;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(6,31,41,.94);
  display: grid; place-items: center;
  padding: clamp(16px, 4vw, 56px);
  opacity: 0;
  transition: opacity .25s var(--ease);
}
.lightbox[hidden] { display: none; }
.lightbox.is-open { opacity: 1; }
.lb-figure { margin: 0; max-width: 1100px; }
.lb-figure img { max-height: 78vh; width: auto; margin-inline: auto; border-radius: var(--radius); }
.lb-figure figcaption {
  margin-top: 16px;
  text-align: center;
  font-size: .9rem;
  color: #fff;
}
.lb-close {
  position: absolute; top: 16px; right: 20px;
  width: 46px; height: 46px;
  font-size: 30px; line-height: 1;
  background: none; border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%; color: #fff; cursor: pointer;
  transition: background-color .2s;
}
.lb-close:hover { background: rgba(255,255,255,.12); }
body.no-scroll { overflow: hidden; }

/* ---------- Scroll-Reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
  .faq-grid { grid-template-columns: 1fr; }
  .faq-head { position: static; margin-bottom: 36px; }
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 24px;
    transform: translateY(-12px);
    opacity: 0; pointer-events: none;
    transition: opacity .22s var(--ease), transform .22s var(--ease);
    box-shadow: 0 24px 40px -30px rgba(6,31,41,.7);
  }
  .nav.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav a { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .nav a::after { display: none; }
  .burger { display: block; }
  .tel { display: none; }

  .hero-grid {
    grid-template-columns: 1fr;
    padding-right: var(--gutter);
  }
  .hero-media img { aspect-ratio: 16 / 10; border-radius: var(--radius); }

  .factbar { grid-template-columns: repeat(2, 1fr); }

  .gebiet-grid, .contact-grid { grid-template-columns: 1fr; }

  .gantt-row { grid-template-columns: 1fr; gap: 8px; }
  .gantt-scale { margin-left: 0; }
  .gantt-value { text-align: left; }
  .gantt-value em { display: inline; margin-left: 8px; }
}

@media (max-width: 620px) {
  .modal { padding: 0; align-items: flex-end; }
  .modal-card {
    width: 100%;
    max-height: 92vh;
    border-radius: var(--radius) var(--radius) 0 0;
    transform: translateY(28px);
  }
  .modal-media img { aspect-ratio: 16 / 9; }
  .modal-foot { flex-direction: column; }
  .modal-foot .btn { width: 100%; }

  .header-actions .btn { display: none; }
  .factbar { grid-template-columns: 1fr; }
  .shot-wide { grid-column: span 1; }
  .shot-wide img { aspect-ratio: 4 / 3; }
  .field-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .gantt-bar { transform: scaleX(1); }
  .modal-card { opacity: 1; transform: none; }
  .modal-backdrop { opacity: 1; }
}

@media print {
  .site-header, .whatsapp-fab, .lightbox, .modal, .hero-cta, .form { display: none; }
  .section-dark, .site-footer { background: #fff; color: #000; }
}