/* =========================================================================
   seriell-sanierung.de — EstNor Fassadenelemente
   Ein einziges Stylesheet, kein Build-Schritt.
   Aufbau: 1) Tokens  2) Basis  3) Layout-Utilities  4) Komponenten  5) Seiten
   ========================================================================= */

/* 1) TOKENS ------------------------------------------------------------------ */
:root {
  --paper:        #f6f4ee;
  --paper-alt:    #efece2;
  --surface:      #ffffff;
  --ink:          #1b211d;
  --ink-soft:     #4b544d;
  --line:         #e3ddd0;

  --spruce:       #1f4d3a;   /* Primärfarbe: Fichte/Holz + Nachhaltigkeit */
  --spruce-deep:  #13342a;
  --spruce-tint:  #e9efe7;
  --ochre:        #dd8a2c;   /* Akzent: warmer Faserzement-/Ziegelton      */
  --ochre-deep:   #b96f1c;

  --font-display: 'Bricolage Grotesque', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Inter', 'Helvetica Neue', Arial, sans-serif;

  --r-sm: 7px;
  --r-md: 14px;
  --r-lg: 22px;

  --wrap: 1140px;
  --pad-section: clamp(3.5rem, 8vw, 6.5rem);
  --shadow: 0 1px 2px rgba(19, 52, 42, .04), 0 12px 32px -12px rgba(19, 52, 42, .12);
}

/* 2) BASIS ----------------------------------------------------------------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

/* Lange deutsche Komposita in schmalen Spalten sauber umbrechen … */
p, h1, h2, h3, dd, .check li, .buildup span { hyphens: auto; }
/* … aber nicht in Navigation, Buttons und Umschaltern */
.nav a, .btn, .lang-switch a, .brand-caption { hyphens: manual; white-space: nowrap; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--spruce-deep);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 .55em;
  font-weight: 600;
}
h1 { font-size: clamp(2.15rem, 5vw, 3.35rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.35rem); }
h3 { font-size: 1.24rem; }

p { margin: 0 0 1.1em; max-width: 64ch; }
a { color: var(--spruce); }
a:hover { color: var(--spruce-deep); }

img, svg { max-width: 100%; display: block; }

ul { margin: 0 0 1.1em; padding-left: 1.2em; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--spruce-deep); color: #fff;
  padding: .6rem 1rem; border-radius: 0 0 var(--r-sm) 0; z-index: 200;
}
.skip-link:focus { left: 0; color: #fff; }

:focus-visible { outline: 2px solid var(--ochre); outline-offset: 2px; }

/* 3) LAYOUT-UTILITIES --------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1.15rem, 4vw, 2.25rem);
}

.section { padding-block: var(--pad-section); }
.section--alt  { background: var(--paper-alt); }
.section--tint { background: var(--spruce-tint); }
.section--dark {
  background: var(--spruce-deep);
  color: #d9e4dd;
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: #fff; }
.section--dark a { color: #fff; }

.section-head { max-width: 46rem; margin-bottom: 2.6rem; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center p { margin-inline: auto; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ochre-deep);
  margin-bottom: .9em;
}
.section--dark .eyebrow { color: var(--ochre); }

.lead { font-size: 1.16rem; color: var(--ink-soft); max-width: 56ch; }
.section--dark .lead { color: #cddbd2; }

.grid { display: grid; gap: 1.75rem; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .cols-3, .cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

.stack-sm > * + * { margin-top: .6rem; }

/* 4) KOMPONENTEN --------------------------------------------------------- */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .96rem;
  line-height: 1;
  padding: .92em 1.5em;
  border-radius: var(--r-sm);
  border: 1.5px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform .14s ease, background .14s ease, color .14s ease, border-color .14s ease;
}
.btn-primary { background: var(--spruce); color: #fff; }
.btn-primary:hover { background: var(--spruce-deep); color: #fff; transform: translateY(-1px); }
.btn-ghost { border-color: currentColor; color: var(--spruce-deep); background: transparent; }
.btn-ghost:hover { background: var(--spruce-deep); color: #fff; border-color: var(--spruce-deep); }
.section--dark .btn-primary { background: var(--ochre); color: #1c130a; }
.section--dark .btn-primary:hover { background: #ea9a3f; color: #1c130a; }
.section--dark .btn-ghost { color: #fff; }
.section--dark .btn-ghost:hover { background: #fff; color: var(--spruce-deep); }

.btn-row { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.6rem; }

/* Header / Navigation */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(246, 244, 238, .9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .55rem; }

.brand { display: flex; flex-direction: column; align-items: flex-start; gap: .15rem; text-decoration: none; }
.brand-logo { width: auto; height: 58px; display: block; }
.brand-caption { font-size: .72rem; color: var(--ink-soft); letter-spacing: .015em; }
@media (max-width: 480px) { .brand-logo { height: 50px; } }

.bar-right { display: flex; align-items: center; gap: 1.1rem; }

.lang-switch { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--surface); }
.lang-switch a {
  font-family: var(--font-display); font-size: .8rem; font-weight: 600; letter-spacing: .03em;
  text-decoration: none; color: var(--ink-soft); padding: .34em .7em; line-height: 1;
}
.lang-switch a + a { border-left: 1px solid var(--line); }
.lang-switch a:hover { color: var(--spruce-deep); background: var(--spruce-tint); }
.lang-switch a[aria-current="true"] { background: var(--spruce); color: #fff; }

.nav { display: flex; align-items: center; gap: 1.35rem; }
.nav ul { display: flex; gap: 1.15rem; list-style: none; margin: 0; padding: 0; }
.nav a { text-decoration: none; color: var(--ink-soft); font-weight: 500; font-size: .95rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--spruce-deep); }
.nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 6px; text-decoration-color: var(--ochre); }

.nav-burger { display: none; }
@media (max-width: 1120px) {
  .nav-burger {
    display: flex; flex-direction: column; gap: 5px;
    padding: .55rem; cursor: pointer; border: 1px solid var(--line);
    border-radius: var(--r-sm); background: var(--surface);
  }
  .nav-burger span { width: 22px; height: 2px; background: var(--spruce-deep); display: block; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 1rem;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 1.25rem clamp(1.15rem, 4vw, 2.25rem) 1.75rem;
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
  }
  .nav ul { flex-direction: column; gap: 1rem; }
  .nav a { font-size: 1.06rem; }
  .nav .lang-switch { align-self: flex-start; margin-top: .35rem; }
  .nav-toggle:checked ~ .nav { transform: translateY(0); opacity: 1; pointer-events: auto; }
}

/* Hero — vollflächiges Architekturfoto, das ins Papier ausläuft */
.hero {
  position: relative;
  isolation: isolate;
  background: var(--paper);
  min-height: clamp(29rem, 70vh, 42rem);
  display: flex;
  align-items: center;
  padding-block: clamp(3.25rem, 8vw, 5.5rem);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; display: block; }
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: 64% 42%;
}
.hero-bg::after {        /* Scrim: links lesbar, rechts zeigt das Foto */
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(100deg,
      rgba(246,244,238,.93) 0%,
      rgba(246,244,238,.78) 26%,
      rgba(246,244,238,.42) 58%,
      rgba(246,244,238,.12) 100%),
    linear-gradient(to top, var(--paper) 2%, rgba(246,244,238,.12) 24%, rgba(246,244,238,0) 46%);
}
.hero-inner { position: relative; }
.hero-inner .eyebrow { margin-bottom: 1em; }
.hero-title { margin-bottom: .5em; max-width: 24ch; hyphens: manual; }
.hero-title > span { display: block; }
.hero-accent {
  font-family: 'EB Garamond', Georgia, 'Times New Roman', serif;
  font-style: italic; font-weight: 500; letter-spacing: 0;
  color: var(--spruce);
  font-size: .95em;
}
.hero .lead { margin-bottom: 0; max-width: 52ch; }
.hero .btn-row { margin-top: 1.75rem; }
@media (max-width: 700px) {
  .hero { min-height: clamp(28rem, 82vh, 40rem); }
  .hero-bg::after {
    background:
      linear-gradient(to top, var(--paper) 3%, rgba(246,244,238,.68) 46%, rgba(246,244,238,.4) 100%),
      linear-gradient(100deg, rgba(246,244,238,.55), rgba(246,244,238,.14) 85%);
  }
}

/* Prefab-Panel-Motiv */
.panel-stack {
  --gap: 8px;
  aspect-ratio: 5 / 4;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: var(--gap);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: var(--gap);
  box-shadow: var(--shadow);
}
.panel-stack i {
  display: block;
  border-radius: 4px;
  background: var(--spruce-tint);
  border: 1px solid #d5e0d3;
  position: relative;
}
.panel-stack i::after {
  content: ""; position: absolute; inset: 22% 60% 22% 14%;
  border: 1.5px solid #c2d1bf; border-radius: 2px;   /* "Fenster" im Element */
}
.panel-stack i:nth-child(1) { grid-row: span 2; background: var(--spruce); border-color: var(--spruce); }
.panel-stack i:nth-child(1)::after { border-color: rgba(255,255,255,.5); }
.panel-stack i:nth-child(4) { grid-row: span 2; }
.panel-stack i:nth-child(6) { background: var(--ochre); border-color: var(--ochre); }
.panel-stack i:nth-child(6)::after { border-color: rgba(255,255,255,.55); }
.panel-stack i:nth-child(9) { grid-column: span 2; }

/* Statistik-Reihe */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
@media (max-width: 820px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
.stat { border-top: 2px solid var(--ochre); padding-top: 1rem; }
.stat b {
  display: block; font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem); color: var(--spruce-deep);
}
.stat span { font-size: .9rem; color: var(--ink-soft); }
.section--dark .stat span { color: #bccabf; }
.section--dark .stat b { color: #fff; }

/* Karten */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1.7rem;
  height: 100%;
}
.card h3 { margin-bottom: .35em; }
.card p:last-child { margin-bottom: 0; }
.card--tint { background: var(--spruce-tint); border-color: #d5e0d3; }

/* Nummerierte Schritte */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.75rem; grid-template-columns: repeat(4, 1fr); counter-reset: s; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.steps li { border-top: 2px solid var(--ochre); padding-top: 1rem; }
.steps li::before {
  counter-increment: s; content: counter(s, decimal-leading-zero);
  font-family: var(--font-display); font-weight: 700; font-size: 1.4rem;
  color: var(--ochre-deep); display: block; margin-bottom: .4rem;
}
.section--dark .steps li::before { color: var(--ochre); }
.steps h3 { font-size: 1.08rem; margin-bottom: .3em; }
.steps p { font-size: .93rem; margin-bottom: 0; }
.section--dark .steps p { color: #cddbd2; }

/* Häkchenliste */
.check { list-style: none; margin: 1.3rem 0 0; padding: 0; display: grid; gap: .85rem; }
.check li { position: relative; padding-left: 1.9rem; color: var(--ink-soft); }
.section--dark .check li { color: #cddbd2; }
.check li::before {
  content: ""; position: absolute; left: 0; top: .1em;
  width: 1.15rem; height: 1.15rem; border-radius: 4px;
  background: var(--spruce);
  -webkit-mask: no-repeat center/72% url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E");
  mask: no-repeat center/72% url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E");
  background-color: var(--spruce);
}
.section--dark .check li::before { background-color: var(--ochre); }

/* Element-Aufbau (Schichtenliste) */
.buildup { list-style: none; margin: 1.4rem 0 0; padding: 0; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; background: var(--surface); }
.buildup li { display: flex; gap: 1rem; padding: 1rem 1.3rem; border-top: 1px solid var(--line); }
.buildup li:first-child { border-top: 0; }
.buildup b { font-family: var(--font-display); color: var(--spruce-deep); min-width: 2.2rem; }
.buildup span { color: var(--ink-soft); font-size: .96rem; }

/* Projektkarten (Referenz-Galerie: echte Vorher/Nachher-Fotos) */
.project-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; display: flex; flex-direction: column; }
.project-figure { aspect-ratio: 12 / 5; background: var(--spruce-tint); overflow: hidden; }
.project-figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-body { padding: 1.25rem 1.5rem 1.5rem; display: flex; flex-direction: column; gap: .15rem; }
.project-body .meta { font-size: .82rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--ochre-deep); }
.project-body h3 { margin-bottom: .5em; }
.project-body p { font-size: .95rem; }
.project-stats { display: flex; gap: 1.6rem; margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--line); }
.project-stats div b { display: block; font-family: var(--font-display); font-size: 1.05rem; color: var(--spruce-deep); }
.project-stats div span { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); }

.tag { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; background: var(--spruce-tint); color: var(--spruce); padding: .3em .7em; border-radius: 999px; }
.tag-row { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .8rem; }

/* CTA-Band */
.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.cta-band > div { max-width: 44rem; }
.cta-band h2 { margin-bottom: .4em; }
.cta-band p { margin-bottom: 0; }

/* Hinweis-/Platzhalter-Callout */
.callout {
  border: 1px dashed var(--ochre-deep);
  background: #fbeee0;
  color: #7a4c14;
  border-radius: var(--r-sm);
  padding: .85rem 1.1rem;
  font-size: .92rem;
  margin: 1.4rem 0;
}
.callout b { color: inherit; }

/* Kontaktformular */
.contact-form { display: grid; gap: 1.05rem; margin-top: 1.4rem; }
.contact-form label { display: grid; gap: .35rem; font-size: .86rem; font-weight: 600; color: var(--ink-soft); }
.contact-form input, .contact-form textarea {
  font: inherit; padding: .72em .9em;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: var(--paper); color: var(--ink);
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--spruce); outline-offset: 1px; background: #fff; }
.contact-form .hp { position: absolute; left: -9999px; }  /* Honeypot */
.contact-form button { justify-self: start; margin-top: .3rem; }

.form-note { font-size: .86rem; color: var(--ink-soft); }
.form-ok  { background: var(--spruce-tint); border: 1px solid #cde0cc; color: var(--spruce-deep); padding: 1rem 1.2rem; border-radius: var(--r-sm); margin-bottom: 1.2rem; }
.form-err { background: #fbe4e0; border: 1px solid #f0c4bb; color: #8f3a2a; padding: 1rem 1.2rem; border-radius: var(--r-sm); margin-bottom: 1.2rem; }

/* Definitionsliste Kontakt */
.contact-dl { display: grid; gap: 1rem; margin: 1.6rem 0; }
.contact-dl dt { font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); }
.contact-dl dd { margin: .2rem 0 0; font-family: var(--font-display); font-weight: 600; color: var(--spruce-deep); font-size: 1.05rem; }

/* Prosa (Impressum/Datenschutz) */
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.4rem; }
.prose ul { padding-left: 1.3em; }
.prose li { margin-bottom: .4em; }

/* Footer */
.site-footer { background: var(--spruce-deep); color: #c4d3c9; padding-block: 3.25rem 1.5rem; }
.site-footer a { color: #c4d3c9; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
/* align-items: stretch (Grid-Standard) hält alle Spalten gleich hoch;
   die drei Link-Spalten haben je 4 Einträge, damit auch der Inhalt gleich endet */
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-brand p { color: #a9bcb0; font-size: .92rem; max-width: 38ch; }
.foot-logo { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: #fff; margin-bottom: .7rem; }
.foot-logo img { height: 3.7rem; width: auto; display: block; margin-bottom: .55rem; }
.site-footer h2 { font-size: .8rem; letter-spacing: .09em; text-transform: uppercase; color: #fff; margin-bottom: .9rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; font-size: .92rem; }
.foot-bottom { margin-top: 2.75rem; padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.12); display: flex; gap: 1rem 2rem; flex-wrap: wrap; justify-content: space-between; }
.foot-bottom p { margin: 0; font-size: .82rem; color: #8ba393; }

/* 5) SEITENSPEZIFISCH ---------------------------------------------------- */

/* Vertrauens-Chips im Hero – kompakt, eine Zeile */
.badge-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.9rem; align-items: center; }
.badge-row span {
  font-size: .76rem; font-weight: 500; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px;
  padding: .32em .8em; background: rgba(255,255,255,.75);
  white-space: nowrap;
}

/* Breadcrumb (Übersicht/Ablauf-Seiten) */
.breadcrumb { font-size: .82rem; color: var(--ink-soft); margin-bottom: 1.1rem; }
.breadcrumb a { color: var(--ink-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--spruce-deep); text-decoration: underline; }
.section--dark .breadcrumb, .section--dark .breadcrumb a { color: #a9bcb0; }
.hero .breadcrumb, .hero .breadcrumb a { color: rgba(27,33,29,.68); }

/* Reiner Text-Hero (Ablauf-Seite, kein Foto) */
.page-hero { padding-block: clamp(2.75rem, 6vw, 4rem) clamp(1.5rem, 3vw, 2rem); }
.page-hero .lead { margin-bottom: 0; }

/* Fotoreihe (Im Werk) */
.photo-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.photo-row .photo-card, .site-gallery .photo-card { margin: 0; border-radius: var(--r-md); overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.photo-row .photo-card img { width: 100%; height: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }
@media (max-width: 760px) { .photo-row { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .photo-row { grid-template-columns: 1fr; } }

/* Element-Explosionsdiagramm mit nummerierten Markern + Legende */
.diagram-figure { position: relative; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: #fbfaf7; box-shadow: var(--shadow); margin-bottom: 1.75rem; }
.diagram-figure img { width: 100%; height: auto; display: block; }
.diagram-marks { position: absolute; inset: 0; }
.diagram-mark {
  position: absolute; transform: translate(-50%, -50%);
  width: 1.6rem; height: 1.6rem; border-radius: 50%;
  background: var(--spruce); color: #fff; border: 2px solid #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: .78rem;
  box-shadow: 0 2px 6px rgba(19,52,42,.35);
}
.diagram-mark:nth-child(even) { background: var(--ochre); }
.diagram-legend { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: .9rem 1.2rem; }
.diagram-legend li { display: flex; align-items: baseline; gap: .55rem; font-size: .88rem; color: var(--ink-soft); }
.diagram-legend b { font-family: var(--font-display); font-weight: 700; color: var(--spruce-deep); min-width: 1.3rem; }
@media (max-width: 900px) { .diagram-legend { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .diagram-legend { grid-template-columns: repeat(2, 1fr); } }

/* Neun Prozessschritte mit Foto */
.process-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem 1.5rem; }
.process-steps li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; display: flex; flex-direction: column; }
.process-steps figure { margin: 0; aspect-ratio: 16/9; background: var(--spruce-tint); }
.process-steps figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.process-steps .process-num { display: block; font-family: var(--font-display); font-weight: 700; color: var(--ochre-deep); font-size: .95rem; margin: 1.1rem 1.25rem .2rem; }
.process-steps h3 { margin: 0 1.25rem .35em; font-size: 1.05rem; }
.process-steps p { margin: 0 1.25rem 1.25rem; font-size: .92rem; }
@media (max-width: 860px) { .process-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .process-steps { grid-template-columns: 1fr; } }

/* Video */
.process-video { width: 100%; border-radius: var(--r-lg); overflow: hidden; display: block; box-shadow: var(--shadow); background: #000; }

/* Baustellen-Fotomosaik */
.photo-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); gap: .85rem; }
.photo-mosaic a { display: block; border-radius: var(--r-sm); overflow: hidden; aspect-ratio: 4/3; border: 1px solid var(--line); }
.photo-mosaic img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .25s ease; }
.photo-mosaic a:hover img { transform: scale(1.05); }
@media (max-width: 760px) { .photo-mosaic { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 500px) { .photo-mosaic { grid-template-columns: repeat(2, 1fr); } }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}