/* =================================================================
   MS Hallenbau & Stahlmontage — Stylesheet
   Ästhetik: industriell-technisch (Anthrazit + Stahlblau)
   Display: Archivo · Text: IBM Plex Sans · Labels/Zahlen: IBM Plex Mono
   ================================================================= */

/* ---------- Design-Tokens ---------- */
:root {
  --anthracite:      #1C2230;
  --anthracite-900:  #141925;
  --anthracite-800:  #232a3a;
  --anthracite-700:  #2d3547;
  --paper:           #F4F6F8;
  --paper-200:       #e7ebf0;
  --white:           #ffffff;

  --steel:           #2E6FB0;   /* Akzent (Flächen, große Elemente) */
  --steel-strong:    #235a91;   /* AA-sicher für Text/Links auf Weiß */
  --steel-light:     #5b95cf;
  --steel-glow:      rgba(46, 111, 176, 0.35);

  --ink:             #1C2230;
  --ink-soft:        #4a5469;
  --ink-faint:       #8a93a6;
  --on-dark:         #e9edf3;
  --on-dark-soft:    #aab3c4;
  --on-dark-faint:   #98a1b5;

  --line:            rgba(28, 34, 48, 0.12);
  --line-dark:       rgba(255, 255, 255, 0.12);

  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --maxw: 1240px;
  --gut: clamp(1.25rem, 4vw, 3rem);
  --radius: 3px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --header-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--steel-strong); text-decoration-thickness: 1px; text-underline-offset: 2px; }
button { font: inherit; cursor: pointer; }

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

/* ---------- Layout-Hilfen ---------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
.section { padding-block: clamp(4rem, 9vw, 7.5rem); position: relative; }
.section--dark { background: var(--anthracite); color: var(--on-dark); }
.section--paper { background: var(--paper); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 200;
  background: var(--steel-strong); color: #fff; padding: 0.6rem 1rem;
  border-radius: var(--radius); transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* ---------- Typografie ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; line-height: 1.04; letter-spacing: -0.02em; }

.kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-strong);
  display: inline-flex; align-items: center; gap: 0.7rem;
}
.kicker::before {
  content: ""; width: 28px; height: 2px; background: var(--steel); display: inline-block;
}
.section--dark .kicker { color: var(--steel-light); }

.section-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 3.75rem); }
.section-head h2 {
  font-size: clamp(2rem, 1.3rem + 3.2vw, 3.5rem);
  margin-top: 1rem;
}
.section-head p { margin-top: 1.1rem; color: var(--ink-soft); font-size: 1.1rem; max-width: 40rem; }
.section--dark .section-head p { color: var(--on-dark-soft); }

.lead { font-size: 1.15rem; color: var(--ink-soft); }

/* ---------- Buttons ---------- */
.btn {
  --b: var(--steel-strong);
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-display); font-weight: 700; font-size: 0.98rem;
  letter-spacing: 0.01em;
  padding: 0.95rem 1.6rem;
  border: 2px solid var(--b);
  border-radius: var(--radius);
  background: var(--b); color: #fff;
  text-decoration: none;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.25s var(--ease);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 28px -12px var(--steel-glow); }
.btn:active { transform: translateY(0); }
.btn .arrow { transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--ink); box-shadow: none; }
.section--dark .btn--ghost,
.hero .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.35); }
.section--dark .btn--ghost:hover,
.hero .btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,0.06); }

.btn--lg { padding: 1.1rem 1.9rem; font-size: 1.05rem; }

/* =================================================================
   HEADER
   ================================================================= */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: rgba(20, 25, 37, 0.0);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck,
.site-header--solid {
  background: rgba(20, 25, 37, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--line-dark);
}
/* Header auf Seiten ohne Hero (Impressum/Datenschutz/404): immer solide */
.site-header--solid { background: rgba(20, 25, 37, 0.97); }
.header-inner {
  max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut);
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand img { height: 30px; width: auto; }
.brand .brand-sub {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--on-dark-soft); line-height: 1.2;
  padding-left: 0.7rem; border-left: 1px solid var(--line-dark);
}
@media (max-width: 560px) { .brand .brand-sub { display: none; } }

.nav { display: flex; align-items: center; gap: 0.4rem; }
.nav a {
  color: var(--on-dark); text-decoration: none; font-size: 0.95rem; font-weight: 500;
  padding: 0.5rem 0.85rem; border-radius: var(--radius);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav a:hover { color: #fff; background: rgba(255,255,255,0.07); }
.nav .btn { margin-left: 0.6rem; padding: 0.7rem 1.2rem; }
.nav .btn:hover { color: #fff; }

.nav-toggle {
  display: none; background: none; border: 0; padding: 0.4rem;
  width: 44px; height: 44px; position: relative; z-index: 110;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 9px; right: 9px; height: 2px;
  background: var(--on-dark); transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span { top: 21px; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: 0 0 0 auto; z-index: 95; width: min(82vw, 340px);
    flex-direction: column; align-items: stretch; justify-content: flex-start;
    gap: 0.25rem; padding: calc(var(--header-h) + 1.5rem) 1.5rem 2rem;
    background: #36415a;
    border-left: 1px solid rgba(255,255,255,0.16);
    transform: translateX(100%); transition: transform 0.35s var(--ease);
    box-shadow: -30px 0 60px -30px rgba(0,0,0,0.6);
  }
  .nav-open .nav { transform: translateX(0); }
  .nav a { padding: 0.85rem 0.9rem; font-size: 1.05rem; border-bottom: 1px solid var(--line-dark); border-radius: 0; }
  .nav .btn { margin: 1rem 0 0; justify-content: center; padding: 0.95rem 1.2rem; }
  .nav-backdrop {
    position: fixed; inset: 0; background: rgba(8,11,18,0.6); z-index: 90;
    opacity: 0; visibility: hidden; transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
  }
  .nav-open .nav-backdrop { opacity: 1; visibility: visible; }

  /* Fix: Bei offenem Menü darf der backdrop-gefilterte Header NICHT zum
     Containing-Block des fixierten Overlays werden — sonst kollabiert dessen
     Höhe auf die Header-Höhe (Menü „ohne Hintergrund" nach dem Scrollen). */
  body.nav-open .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; }
}

/* =================================================================
   HERO
   ================================================================= */
.hero {
  position: relative; min-height: min(92vh, 880px);
  display: flex; align-items: flex-end;
  padding-top: calc(var(--header-h) + 2rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  color: #fff; overflow: hidden;
  background: var(--anthracite-900);
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg picture { display: block; width: 100%; height: 100%; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(75deg, rgba(15,19,29,0.96) 0%, rgba(17,22,33,0.82) 42%, rgba(20,26,38,0.45) 100%),
    linear-gradient(0deg, rgba(13,16,24,0.9) 0%, rgba(13,16,24,0) 45%);
}
/* Blueprint-Raster */
.hero__grid {
  position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: 0.5;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 80% at 15% 90%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(120% 80% at 15% 90%, #000 30%, transparent 80%);
}
/* diagonale Stahl-Akzentlinie */
.hero__accent {
  position: absolute; z-index: 1; right: -10%; top: -20%;
  width: 60%; height: 140%; pointer-events: none;
  background: linear-gradient(180deg, transparent, var(--steel) 50%, transparent);
  width: 3px; transform: rotate(24deg); transform-origin: top right;
  opacity: 0.35;
}
.hero__inner { position: relative; z-index: 2; width: 100%; }

.hero__kicker { color: var(--steel-light); margin-bottom: 1.5rem; }
.hero h1 {
  font-size: clamp(2.6rem, 1.2rem + 6.4vw, 5.6rem);
  font-weight: 900; letter-spacing: -0.03em; max-width: 16ch;
  text-wrap: balance;
}
.hero h1 .accent { color: var(--steel-light); }
.hero__sub {
  margin-top: 1.5rem; max-width: 46ch; font-size: clamp(1.05rem, 1rem + 0.5vw, 1.3rem);
  color: var(--on-dark); line-height: 1.6;
}
.hero__cta { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: 0.9rem; }

.hero__trust {
  margin-top: clamp(2.5rem, 5vw, 3.75rem);
  display: flex; flex-wrap: wrap; gap: clamp(1.25rem, 4vw, 3.5rem);
  padding-top: 1.75rem; border-top: 1px solid var(--line-dark);
}
.trust-item { display: flex; flex-direction: column; gap: 0.15rem; }
.trust-item b {
  font-family: var(--font-display); font-size: 1.6rem; font-weight: 800; letter-spacing: -0.02em;
}
.trust-item span {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--on-dark-soft);
}

/* Hero-Eingangsanimation */
.reveal-hero > * { opacity: 0; transform: translateY(22px); animation: heroIn 0.8s var(--ease) forwards; }
.reveal-hero > *:nth-child(1) { animation-delay: 0.05s; }
.reveal-hero > *:nth-child(2) { animation-delay: 0.16s; }
.reveal-hero > *:nth-child(3) { animation-delay: 0.27s; }
.reveal-hero > *:nth-child(4) { animation-delay: 0.38s; }
.reveal-hero > *:nth-child(5) { animation-delay: 0.5s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }

/* =================================================================
   LEISTUNGEN
   ================================================================= */
.services-lead {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin-bottom: 1.25rem;
}
.services-rest {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
@media (max-width: 820px) {
  .services-lead, .services-rest { grid-template-columns: 1fr; }
}

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  position: relative; overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--steel);
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 26px 50px -28px rgba(20,25,37,0.4); border-color: transparent; }
.card:hover::before { transform: scaleX(1); }

.service--lead { display: flex; flex-direction: column; }
.service--lead .service__media { aspect-ratio: 16 / 9; overflow: hidden; background: var(--anthracite-800); }
.service--lead .service__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.service--lead:hover .service__media img { transform: scale(1.05); }
.service__body { padding: clamp(1.5rem, 3vw, 2.25rem); }
.service__num {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.16em; color: var(--steel-strong);
}
.service h3 { font-size: 1.55rem; margin: 0.5rem 0 0.7rem; }
.service p { color: var(--ink-soft); font-size: 1rem; }
.service__tags { margin-top: 1.1rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.05em;
  padding: 0.3rem 0.6rem; border: 1px solid var(--line); border-radius: 2px; color: var(--ink-soft);
}

.service--small .service__body { padding: clamp(1.4rem, 2.4vw, 1.9rem); }
.service--small .icon {
  width: 46px; height: 46px; color: var(--steel-strong); margin-bottom: 1rem;
}
.service--small h3 { font-size: 1.2rem; }
.service--small p { font-size: 0.96rem; }

/* =================================================================
   WARUM M&S (USP)
   ================================================================= */
.why { position: relative; }
.why__grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
@media (max-width: 900px) { .why__grid { grid-template-columns: 1fr; } }

.usp-list { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 520px) { .usp-list { grid-template-columns: 1fr; } }
.usp {
  background: var(--anthracite); padding: clamp(1.5rem, 3vw, 2rem);
  transition: background 0.3s var(--ease);
}
.usp:hover { background: var(--anthracite-800); }
.usp__num { font-family: var(--font-mono); font-size: 0.85rem; color: var(--steel-light); letter-spacing: 0.12em; }
.usp h3 { font-size: 1.2rem; margin: 0.7rem 0 0.5rem; color: #fff; }
.usp p { font-size: 0.95rem; color: var(--on-dark-soft); }

.why__media { position: relative; }
.why__media img { width: 100%; border-radius: var(--radius); aspect-ratio: 4/5; object-fit: cover; }
.why__media .badge {
  position: absolute; left: -1px; bottom: 1.5rem; background: var(--steel);
  color: #fff; padding: 1rem 1.4rem; border-radius: 0 var(--radius) var(--radius) 0;
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.08em; max-width: 16rem;
}
.why__media .badge b { font-family: var(--font-display); font-size: 1.05rem; display: block; }

/* =================================================================
   PROJEKTE
   ================================================================= */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
@media (max-width: 880px) { .projects-grid { grid-template-columns: 1fr; max-width: 30rem; margin-inline: auto; } }

.project { display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.project__media { aspect-ratio: 4/3; overflow: hidden; background: var(--anthracite-800); position: relative; }
.project__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.project:hover .project__media img { transform: scale(1.06); }
.project__flag {
  position: absolute; top: 0.75rem; left: 0.75rem; z-index: 2;
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.3rem 0.55rem; border-radius: 2px; background: rgba(20,25,37,0.85); color: var(--on-dark); backdrop-filter: blur(4px);
}
.project__flag--ref { background: var(--steel); color: #fff; }
.project__body { padding: 1.4rem 1.5rem 1.6rem; }
.project__meta {
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.06em; color: var(--steel-strong);
  display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; margin-bottom: 0.6rem;
}
.project__meta span { display: inline-flex; align-items: center; gap: 0.4rem; }
.project h3 { font-size: 1.25rem; }
.project p { color: var(--ink-soft); font-size: 0.95rem; margin-top: 0.4rem; }
.projects-note {
  margin-top: 1.75rem; font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em;
  color: #5a6377;
}

/* =================================================================
   ABLAUF
   ================================================================= */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 3vw, 2.5rem); counter-reset: step; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; gap: 0; } }
.step { position: relative; padding-top: 2.5rem; }
.step__num {
  font-family: var(--font-display); font-weight: 800; font-size: 3.5rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px var(--steel-light); letter-spacing: -0.03em;
}
.section--dark .step__line { position: absolute; top: 2.7rem; left: 4.5rem; right: -1.5rem; height: 1px; background: var(--line-dark); }
.steps .step:last-child .step__line { display: none; }
@media (max-width: 820px) {
  .step { padding: 1.75rem 0 1.75rem 0; border-bottom: 1px solid var(--line-dark); }
  .step__line { display: none !important; }
}
.step h3 { font-size: 1.3rem; margin: 1rem 0 0.6rem; color: #fff; }
.step p { color: var(--on-dark-soft); font-size: 1rem; }

/* =================================================================
   FAQ
   ================================================================= */
.faq { max-width: 60rem; }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary {
  list-style: none; cursor: pointer; padding: 1.4rem 3rem 1.4rem 0; position: relative;
  font-family: var(--font-display); font-weight: 700; font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem);
  color: var(--ink); display: block;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: ""; position: absolute; right: 0.25rem; top: 1.65rem;
  width: 16px; height: 16px;
  background:
    linear-gradient(var(--steel-strong),var(--steel-strong)) center/100% 2px no-repeat,
    linear-gradient(var(--steel-strong),var(--steel-strong)) center/2px 100% no-repeat;
  transition: transform 0.3s var(--ease);
}
.faq__item[open] summary::after { transform: rotate(135deg); }
.faq__item summary:hover { color: var(--steel-strong); }
.faq__answer { overflow: hidden; }
.faq__answer p { padding: 0 3rem 1.5rem 0; color: var(--ink-soft); max-width: 56ch; }
.faq__item[open] .faq__answer { animation: faqOpen 0.35s var(--ease); }
@keyframes faqOpen { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* =================================================================
   KONTAKT
   ================================================================= */
.contact__grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
@media (max-width: 900px) { .contact__grid { grid-template-columns: 1fr; } }

.contact__info h2 { font-size: clamp(2rem, 1.3rem + 3vw, 3.25rem); margin-top: 1rem; }
.contact__info > p { margin-top: 1.1rem; color: var(--on-dark-soft); max-width: 38ch; }
.contact__details { margin-top: 2.25rem; display: grid; gap: 1.25rem; }
.detail { display: flex; gap: 1rem; align-items: flex-start; }
.detail .icon { width: 22px; height: 22px; color: var(--steel-light); flex: none; margin-top: 0.25rem; }
.detail .label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-dark-faint); }
.detail a, .detail address { color: #fff; font-style: normal; text-decoration: none; font-size: 1.1rem; font-weight: 500; }
.detail a:hover { color: var(--steel-light); }

/* Formular-Card */
.form-card { background: var(--white); color: var(--ink); border-radius: var(--radius); padding: clamp(1.5rem, 4vw, 2.5rem); box-shadow: 0 40px 80px -50px rgba(0,0,0,0.7); }
.form-card h3 { font-size: 1.5rem; }
.form-card > p { color: var(--ink-soft); margin-top: 0.4rem; font-size: 0.95rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 1.1rem; margin-top: 1.5rem; }
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); }
.field label .req { color: var(--steel-strong); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 0.98rem; color: var(--ink);
  padding: 0.75rem 0.85rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--paper); transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--steel); background: #fff; box-shadow: 0 0 0 3px var(--steel-glow);
}
.field textarea { resize: vertical; min-height: 120px; }
.field--check { flex-direction: row; align-items: flex-start; gap: 0.65rem; grid-column: 1/-1; }
.field--check input { margin-top: 0.2rem; width: 18px; height: 18px; flex: none; accent-color: var(--steel-strong); }
.field--check label { font-family: var(--font-body); text-transform: none; letter-spacing: 0; font-size: 0.88rem; color: var(--ink-soft); line-height: 1.5; }
.honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-card .btn { margin-top: 1.4rem; width: 100%; justify-content: center; }
.form-status { margin-top: 1rem; font-size: 0.92rem; border-radius: var(--radius); padding: 0; }
.form-status[data-state="ok"] { padding: 0.9rem 1rem; background: #e8f3ea; color: #1d6b34; border: 1px solid #b8dcc1; }
.form-status[data-state="err"] { padding: 0.9rem 1rem; background: #fbeaea; color: #9b2c2c; border: 1px solid #e7bcbc; }
@media (max-width: 480px) { .form-grid { grid-template-columns: 1fr; } }

/* =================================================================
   FOOTER
   ================================================================= */
.site-footer { background: var(--anthracite-900); color: var(--on-dark-soft); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--line-dark); }
@media (max-width: 720px) { .footer-top { grid-template-columns: 1fr; gap: 2rem; } }
.footer-brand img { height: 32px; margin-bottom: 1.1rem; }
.footer-brand p { max-width: 32ch; font-size: 0.95rem; }
.footer-col h4 { font-family: var(--font-mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-dark-faint); margin-bottom: 1rem; }
.footer-col ul { list-style: none; padding: 0; display: grid; gap: 0.6rem; }
.footer-col a { color: var(--on-dark); text-decoration: none; font-size: 0.96rem; }
.footer-col a:hover { color: var(--steel-light); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding-top: 1.75rem; font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.04em; color: var(--on-dark-faint); }
.footer-bottom a { color: var(--on-dark-faint); }

/* =================================================================
   Rechtsseiten (Impressum / Datenschutz / 404)
   ================================================================= */
.legal { padding-top: calc(var(--header-h) + clamp(3rem, 6vw, 5rem)); padding-bottom: clamp(3rem, 6vw, 5rem); }
.legal .wrap { max-width: 50rem; }
.legal h1 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3rem); margin-bottom: 0.5rem; }
.legal .kicker { margin-bottom: 1rem; }
.legal h2 { font-size: 1.4rem; margin: 2.5rem 0 0.8rem; }
.legal h3 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; font-family: var(--font-body); font-weight: 700; }
.legal p, .legal li { color: var(--ink-soft); margin-bottom: 0.8rem; }
.legal ul { padding-left: 1.2rem; }
.legal a { color: var(--steel-strong); }
.placeholder {
  background: #fff7e6; border: 1px dashed #e0a900; border-radius: var(--radius);
  padding: 0.15rem 0.4rem; color: #8a6500; font-family: var(--font-mono); font-size: 0.9em;
}
.notice {
  background: var(--paper); border-left: 3px solid var(--steel); border-radius: var(--radius);
  padding: 1.1rem 1.3rem; margin: 1.5rem 0; font-size: 0.95rem;
}
.error-page { min-height: 70vh; display: grid; place-content: center; text-align: center; gap: 1rem; padding-top: var(--header-h); }
.error-page .code { font-family: var(--font-mono); color: var(--steel-strong); letter-spacing: 0.2em; }
.error-page h1 { font-size: clamp(2.5rem, 8vw, 5rem); }

/* =================================================================
   Scroll-Reveal
   ================================================================= */
.r { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.r.in { opacity: 1; transform: none; }
.r-2 { transition-delay: 0.08s; }
.r-3 { transition-delay: 0.16s; }
.r-4 { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) {
  .r { opacity: 1; transform: none; }
  .reveal-hero > * { opacity: 1; transform: none; animation: none; }
}