/* InstalMobileService — premium static site
   Art direction: graphite / carbon / hex, controlled red accents, white / gray.
   Vanilla CSS, no dependencies. */

:root {
  --red: #e11d2a;
  --red-2: #ff3b48;
  --red-dark: #b3151f;
  --ink: #101114;
  --ink-2: #1b1d22;
  --gray-900: #23262c;
  --gray-600: #5b6068;
  --gray-400: #9aa0a6;
  --gray-200: #e6e8eb;
  --gray-100: #f3f4f6;
  --white: #ffffff;
  --whatsapp: #25d366;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(16, 17, 20, .10);
  --shadow-lg: 0 20px 50px rgba(16, 17, 20, .18);
  --shadow-dark: 0 22px 48px rgba(0, 0, 0, .45);
  --maxw: 1160px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  /* Premium technical textures (inline SVG, baked opacity) */
  --hex: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='49' viewBox='0 0 28 49'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='0.06' stroke-width='1'%3E%3Cpath d='M14 0v16.5L0 24.75M14 0l14 8.25v16.5L14 33 0 24.75M14 33v16'/%3E%3C/g%3E%3C/svg%3E");
  --hex-red: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='49' viewBox='0 0 28 49'%3E%3Cg fill='none' stroke='%23e11d2a' stroke-opacity='0.07' stroke-width='1'%3E%3Cpath d='M14 0v16.5L0 24.75M14 0l14 8.25v16.5L14 33 0 24.75M14 33v16'/%3E%3C/g%3E%3C/svg%3E");
  --carbon: repeating-linear-gradient(45deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 5px),
            repeating-linear-gradient(-45deg, rgba(255, 255, 255, .022) 0 1px, transparent 1px 5px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

h1, h2, h3 { line-height: 1.15; margin: 0 0 .4em; letter-spacing: -.01em; }
h2 { font-size: clamp(1.55rem, 3vw, 2.25rem); letter-spacing: -.02em; }
h3 { font-size: 1.13rem; }
p { margin: 0 0 1rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  position: relative; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .9rem 1.5rem; border-radius: 999px; font-weight: 700; font-size: .98rem;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .16s var(--ease), box-shadow .22s var(--ease), background .22s, border-color .22s, filter .22s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; }

.btn-primary {
  background: linear-gradient(180deg, var(--red-2) 0%, var(--red) 52%, var(--red-dark) 100%);
  color: #fff;
  box-shadow: 0 10px 24px rgba(225, 29, 42, .34), inset 0 1px 0 rgba(255, 255, 255, .25);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(225, 29, 42, .46), inset 0 1px 0 rgba(255, 255, 255, .3); filter: brightness(1.04); }

.btn-whatsapp {
  background: linear-gradient(180deg, #2ee06f 0%, var(--whatsapp) 60%, #1cb457 100%);
  color: #06381b;
  box-shadow: 0 10px 24px rgba(37, 211, 102, .30), inset 0 1px 0 rgba(255, 255, 255, .35);
}
.btn-whatsapp:hover { box-shadow: 0 14px 30px rgba(37, 211, 102, .42), inset 0 1px 0 rgba(255, 255, 255, .4); filter: brightness(1.03); }

.btn-glass {
  background: rgba(255, 255, 255, .07); color: #fff;
  border-color: rgba(255, 255, 255, .26);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .16), 0 8px 22px rgba(0, 0, 0, .26);
}
.btn-glass:hover { background: rgba(255, 255, 255, .14); border-color: rgba(255, 71, 79, .55); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), 0 12px 28px rgba(0, 0, 0, .34); }
.btn-ico { display: inline-flex; align-items: center; }

.btn-call {
  background: linear-gradient(180deg, var(--red-2), var(--red) 55%, var(--red-dark));
  color: #fff; padding: .58rem 1.05rem; font-size: .92rem;
  box-shadow: 0 8px 18px rgba(225, 29, 42, .30), inset 0 1px 0 rgba(255, 255, 255, .22);
}
.btn-call:hover { filter: brightness(1.05); box-shadow: 0 12px 24px rgba(225, 29, 42, .42); }
.btn-icon { font-size: 1.05em; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .94);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: 0 6px 24px rgba(16, 17, 20, .05);
}
.header-inner { display: flex; align-items: center; gap: 1.1rem; min-height: 76px; }
.brand {
  display: inline-flex; align-items: center; position: relative;
  padding-right: 1.2rem; margin-right: 1rem;
}
.brand::after { /* dezenter, mittiger Trenner Logo/Navigation */
  content: ""; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 1px; height: 30px; background: var(--gray-200);
}
/* Banner-Logo (weißer Hintergrund, 16:9) auf den Wortmarken-Teil zugeschnitten:
   die kleine, unleserliche Tagline-Zeile unten wird sauber im Zwischenraum (≈72%) abgeschnitten. */
.brand-logo {
  height: clamp(44px, 4.8vw, 52px); width: auto; aspect-ratio: 2.47;
  object-fit: cover; object-position: top center; display: block;
}
.main-nav { display: flex; gap: 1.6rem; }
.main-nav a { font-weight: 600; color: var(--gray-600); font-size: .95rem; letter-spacing: .005em; padding: .35rem 0; position: relative; transition: color .18s; }
.main-nav a:hover { color: var(--ink); }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--red), var(--red-2)); border-radius: 2px;
  transition: width .22s var(--ease);
}
.main-nav a:hover::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: .7rem; margin-left: auto; }

.lang-switch { display: inline-flex; border: 1px solid var(--gray-200); border-radius: 999px; overflow: hidden; background: rgba(255, 255, 255, .7); }
.lang-switch button {
  background: transparent; border: 0; padding: .42rem .72rem; font-weight: 700; font-size: .82rem;
  color: var(--gray-600); cursor: pointer; transition: background .15s, color .15s;
}
.lang-switch button:hover { background: var(--gray-100); color: var(--ink); }
.lang-switch button.is-active { background: var(--ink); color: #fff; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav { display: none; flex-direction: column; padding: .5rem 22px 1rem; border-top: 1px solid var(--gray-200); background: #fff; }
.mobile-nav a { padding: .85rem .2rem; font-weight: 600; border-bottom: 1px solid var(--gray-100); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(1200px 600px at 14% -10%, #21252d 0%, transparent 58%),
    linear-gradient(168deg, #1a1d23 0%, #131519 48%, #0c0d10 100%);
}
.hero::before { /* feines, materielles Carbon-Gewebe + dezentes Hex (kein Tapeten-Look) */
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: var(--hex), var(--carbon);
  background-size: 40px 70px, 6px 6px, 6px 6px;
  opacity: .5;
  filter: blur(.3px);
  /* ungleichmäßige Maske: Textur oben/rechts präsent, zum Text hin sauber */
  -webkit-mask-image: radial-gradient(135% 105% at 82% 4%, #000 0%, rgba(0, 0, 0, .4) 40%, transparent 78%);
  mask-image: radial-gradient(135% 105% at 82% 4%, #000 0%, rgba(0, 0, 0, .4) 40%, transparent 78%);
}
.hero::after { /* weiches Backlight hinter der Armatur + kontrollierter roter Akzent + Schimmer */
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(44% 60% at 78% 54%, rgba(255, 255, 255, .055), transparent 72%),
    radial-gradient(620px 330px at 86% 4%, rgba(225, 29, 42, .16), transparent 64%),
    linear-gradient(102deg, transparent 56%, rgba(255, 255, 255, .026) 73%, transparent 90%);
}
.hero-inner {
  position: relative; z-index: 2;
  padding: 92px 22px 82px;
}
.hero-text { max-width: 600px; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .8rem; color: var(--gray-400); font-weight: 700; margin-bottom: .85rem; }
.hero-title { font-size: clamp(1.95rem, 4.4vw, 3rem); font-weight: 700; line-height: 1.12; letter-spacing: -.025em; max-width: 16ch; text-wrap: balance; }
.slogan { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; font-weight: 800; letter-spacing: .02em; margin: .3rem 0 1.1rem; }
.slogan span { color: #fff; }
.slogan i { color: var(--red); font-style: normal; }
.hero-sub { color: #d2d5da; font-size: 1.06rem; max-width: 540px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .7rem; margin: 1.7rem 0 1.2rem; }
.hero-phone { color: var(--gray-400); font-weight: 600; }
.hero-phone a { color: #fff; border-bottom: 2px solid var(--red); padding-bottom: 1px; }

/* Hero product photo (faucet) — transparentes PNG über dem Carbon/Hex-Hintergrund.
   Kein Foto-Hintergrund, kein Rechteck, kein Stern. Nur der harte Wasserschnitt
   unten wird dezent ausgeblendet; ein weicher Schatten erdet die Armatur. */
.hero-photo {
  position: absolute; z-index: 1; top: 50%; right: 7%; transform: translateY(-50%);
  width: min(805px, 60%); height: auto; pointer-events: none; user-select: none;
  filter: drop-shadow(0 34px 50px rgba(0, 0, 0, .62)) drop-shadow(0 8px 16px rgba(0, 0, 0, .42));
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 81%, transparent 95%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 81%, transparent 95%);
}

/* ============================================================
   Sections
   ============================================================ */
.section { padding: 84px 0; }
.section-soft { background: linear-gradient(180deg, var(--gray-100), #eef0f3); }

/* Shared premium dark surface */
.section-dark {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 82% -12%, rgba(225, 29, 42, .12), transparent 60%),
    linear-gradient(180deg, #181b21 0%, #111317 58%, #0c0d10 100%);
}
.section-dark::before { /* sichtbares Hex-Raster / visible hex weave */
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: var(--hex-red), var(--hex);
  background-size: 90px 158px, 30px 52px;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 14%, #000 86%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 14%, #000 86%, transparent);
}
.section-dark::after { /* per-Section roter Glow (Standard: oben rechts) */
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(620px 340px at 88% -6%, rgba(225, 29, 42, .14), transparent 62%);
}
.section-dark > .container { position: relative; z-index: 1; }
.section-dark .section-lead { color: #c9ccd1; }

/* Subtle per-section differentiation */
#warum::after { background: radial-gradient(640px 360px at 90% -8%, rgba(225, 29, 42, .15), transparent 62%); }

#ablauf { background:
    radial-gradient(1000px 520px at 12% -12%, rgba(225, 29, 42, .07), transparent 60%),
    linear-gradient(180deg, #16191e 0%, #101216 60%, #0b0c0f 100%); }
#ablauf::before { /* Carbon-Gewebe statt Hex zur Abwechslung — dezenter */
  background-image: var(--hex-red), var(--carbon);
  background-size: 120px 210px, 6px 6px, 6px 6px;
  opacity: .7;
}
#ablauf::after { background: radial-gradient(620px 340px at 8% -6%, rgba(225, 29, 42, .09), transparent 60%); }

#kontakt::before { background-size: 120px 210px, 40px 70px; opacity: .72; }
#kontakt::after { background:
    radial-gradient(720px 360px at 50% 116%, rgba(225, 29, 42, .10), transparent 64%),
    radial-gradient(520px 280px at 84% -6%, rgba(225, 29, 42, .045), transparent 60%); }

.section-head { max-width: 720px; margin: 0 auto 2.6rem; text-align: center; }
.kicker { text-transform: uppercase; letter-spacing: .14em; font-size: .8rem; font-weight: 800; color: var(--red); margin-bottom: .55rem; }
.section-dark .kicker { color: var(--red-2); }
.section-lead { color: var(--gray-600); font-size: 1.05rem; }

/* ============================================================
   Cards
   ============================================================ */
.cards { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, #fbfbfd 100%);
  border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 28px 26px; box-shadow: var(--shadow);
  transition: transform .22s var(--ease), box-shadow .22s, border-color .22s;
}
.card::before { /* feiner roter Akzentstrich oben / red accent on hover */
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--red), var(--red-2));
  transition: width .3s var(--ease);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(225, 29, 42, .28); }
.card:hover::before { width: 100%; }
.card h3 { margin-bottom: .35rem; }
.card p { color: var(--gray-600); margin: 0; font-size: .97rem; }

/* Service cards — discreet technical corner bracket (less template) */
.service::after {
  content: ""; position: absolute; right: 16px; top: 16px; width: 16px; height: 16px;
  border-top: 2px solid var(--gray-200); border-right: 2px solid var(--gray-200);
  border-radius: 0 5px 0 0; transition: border-color .22s;
}
.service:hover::after { border-color: rgba(225, 29, 42, .55); }

/* Dark card variant — graphite / carbon with controlled glow */
.section-dark .card {
  background: linear-gradient(160deg, #1f232a 0%, #15171c 100%);
  border: 1px solid rgba(255, 255, 255, .09); color: #fff;
  box-shadow: var(--shadow-dark), inset 0 1px 0 rgba(255, 255, 255, .05);
}
.section-dark .card::after { /* feines Carbon-Gewebe im Card */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--carbon); background-size: 6px 6px;
  -webkit-mask-image: radial-gradient(280px 180px at 82% 0%, #000, transparent 82%);
  mask-image: radial-gradient(280px 180px at 82% 0%, #000, transparent 82%);
}
.section-dark .card p { color: #b9bdc4; }
.section-dark .card:hover {
  transform: translateY(-5px); border-color: rgba(225, 29, 42, .5);
  box-shadow: 0 28px 60px rgba(0, 0, 0, .55), 0 0 0 1px rgba(225, 29, 42, .22), inset 0 1px 0 rgba(255, 255, 255, .07);
}

.ic {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center; width: 54px; height: 54px;
  border-radius: 14px; margin-bottom: 16px; color: var(--red);
  background: linear-gradient(180deg, #ffffff, #f1f2f4);
  box-shadow: inset 0 0 0 1px var(--gray-200), 0 4px 12px rgba(16, 17, 20, .06);
  transition: background .22s, color .22s, box-shadow .22s, transform .22s;
}
.card:hover .ic { background: linear-gradient(180deg, var(--red-2), var(--red)); color: #fff; box-shadow: 0 10px 22px rgba(225, 29, 42, .34); transform: translateY(-1px); }
.section-dark .ic {
  color: var(--red-2);
  background: linear-gradient(180deg, rgba(225, 29, 42, .24), rgba(225, 29, 42, .08));
  box-shadow: inset 0 0 0 1px rgba(225, 29, 42, .34), 0 6px 16px rgba(225, 29, 42, .18);
}
.section-dark .card:hover .ic { background: linear-gradient(180deg, var(--red-2), var(--red)); color: #fff; }

/* Atmosphärisches Foto im Hintergrund der "Warum"-Karten.
   Foto unten rechts, stark abgedunkelt + entsättigt + zum Text hin ausmaskiert,
   sodass Icon/Titel/Text klar lesbar bleiben. */
.feature { position: relative; }
.feature > :not(.feat-media) { position: relative; z-index: 1; }
.feat-media {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; border-radius: inherit; overflow: hidden;
  background-image:
    linear-gradient(105deg, rgba(16, 18, 23, .96) 0%, rgba(16, 18, 23, .87) 40%, rgba(16, 18, 23, .58) 78%, rgba(16, 18, 23, .42) 100%),
    var(--feat);
  background-repeat: no-repeat;
  background-position: center center, center center;
  background-size: cover, cover;
  filter: grayscale(.28) contrast(1.04) brightness(.82) saturate(.92);
  transition: filter .3s var(--ease), transform .5s var(--ease);
}
.feature:hover .feat-media { filter: grayscale(.1) contrast(1.06) brightness(.92) saturate(1); transform: scale(1.045); }
.why-speed .feat-media { --feat: url("../img/why/why-speed.png"); }
.why-clean .feat-media { --feat: url("../img/why/why-clean.png"); }
.why-fair  .feat-media { --feat: url("../img/why/why-fair.png"); background-position: center center, 38% 42%; }
.why-trust .feat-media { --feat: url("../img/why/why-trust.png"); background-position: center center, 64% 60%; }

/* ============================================================
   Split (Einsatzgebiet) + Visitenkarte
   ============================================================ */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; }
.area-list { list-style: none; padding: 0; margin: 1rem 0 1.6rem; display: grid; grid-template-columns: 1fr 1fr; gap: .55rem .9rem; }
.area-list li { position: relative; padding-left: 1.4rem; color: var(--gray-600); font-weight: 600; }
.area-list li::before { content: "▸"; position: absolute; left: 0; color: var(--red); }

/* Premium statische Visitenkarte */
.biz-card {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(440px 220px at 88% 0%, rgba(225, 29, 42, .14), transparent 70%),
    linear-gradient(155deg, #20232b 0%, #15171c 52%, #101216 100%);
  border: 1px solid rgba(255, 255, 255, .11); border-radius: var(--radius); padding: 34px 32px;
  box-shadow: var(--shadow-dark), inset 0 1px 0 rgba(255, 255, 255, .06);
}
.biz-card::before { /* Carbon/Hex-Gewebe sichtbar */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--hex); background-size: 30px 52px;
  -webkit-mask-image: radial-gradient(460px 300px at 84% 6%, #000, transparent 80%);
  mask-image: radial-gradient(460px 300px at 84% 6%, #000, transparent 80%);
}
.biz-card::after { /* dünne rote Kante links */
  content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 3px;
  border-radius: 3px; background: linear-gradient(180deg, var(--red-2), var(--red), transparent);
}
.biz-name { position: relative; font-size: 1.42rem; font-weight: 800; margin: 0 0 .15rem; }
.biz-tag { position: relative; color: var(--red-2); font-weight: 700; letter-spacing: .02em; margin: 0 0 1.2rem; }
.biz-rows {
  position: relative; list-style: none; margin: 0; padding: 1.2rem 0 0;
  border-top: 1px solid rgba(255, 255, 255, .10);
  display: flex; flex-direction: column; gap: .9rem;
}
.biz-rows li { display: flex; align-items: flex-start; gap: .75rem; color: #d7dadf; line-height: 1.45; }
.biz-rows a { color: #fff; transition: color .18s; }
.biz-rows a:hover { color: var(--red-2); }
.biz-ic {
  flex: 0 0 auto; margin-top: 1px; color: var(--red-2); display: inline-flex;
  width: 32px; height: 32px; align-items: center; justify-content: center; border-radius: 9px;
  background: rgba(225, 29, 42, .12); box-shadow: inset 0 0 0 1px rgba(225, 29, 42, .26);
}
/* Atmosphärisches Technikraum-Foto im Hintergrund der Visitenkarte —
   gleiche Logik wie die "Warum"-Karten, stärker abgedunkelt (mehr Text). */
.biz-name, .biz-tag, .biz-rows { z-index: 1; }
.biz-media {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; border-radius: inherit; overflow: hidden;
  background-image:
    linear-gradient(110deg, rgba(15, 17, 22, .97) 0%, rgba(15, 17, 22, .93) 44%, rgba(15, 17, 22, .6) 80%, rgba(15, 17, 22, .34) 100%),
    url("../img/why/why-business-card.png");
  background-repeat: no-repeat;
  background-position: center center, center right;
  background-size: cover, cover;
  filter: grayscale(.2) contrast(1.04) brightness(.92) saturate(1);
}

/* ============================================================
   Ablauf / So arbeiten wir (process)
   ============================================================ */
.process { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #1f232a 0%, #15171c 100%);
  border: 1px solid rgba(255, 255, 255, .09); border-radius: var(--radius);
  padding: 30px 24px 26px; box-shadow: var(--shadow-dark), inset 0 1px 0 rgba(255, 255, 255, .05);
  transition: transform .22s var(--ease), border-color .22s, box-shadow .22s;
}
.step::after { /* feines Carbon-Gewebe */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--carbon); background-size: 6px 6px;
  -webkit-mask-image: radial-gradient(220px 160px at 78% 0%, #000, transparent 82%);
  mask-image: radial-gradient(220px 160px at 78% 0%, #000, transparent 82%);
}
.step:hover { transform: translateY(-5px); border-color: rgba(225, 29, 42, .5); box-shadow: 0 28px 60px rgba(0, 0, 0, .55), 0 0 0 1px rgba(225, 29, 42, .22); }
.step-no {
  position: absolute; right: 16px; top: 6px; font-size: 3.1rem; font-weight: 800; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .12);
  letter-spacing: -.02em; pointer-events: none;
}
.step-ic {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center; width: 50px; height: 50px;
  border-radius: 14px; margin-bottom: 16px; color: var(--red-2);
  background: linear-gradient(180deg, rgba(225, 29, 42, .24), rgba(225, 29, 42, .08));
  box-shadow: inset 0 0 0 1px rgba(225, 29, 42, .34), 0 6px 16px rgba(225, 29, 42, .18);
}
.step h3 { position: relative; color: #fff; margin-bottom: .3rem; }
.step p { position: relative; color: #b9bdc4; margin: 0; font-size: .95rem; }

/* ============================================================
   Contact
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 1.9rem; }
.contact-tile {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column; gap: .2rem; padding: 18px 20px; border-radius: var(--radius);
  background: linear-gradient(160deg, #1f232a 0%, #15171c 100%);
  border: 1px solid rgba(255, 255, 255, .09);
  box-shadow: var(--shadow-dark), inset 0 1px 0 rgba(255, 255, 255, .05);
  transition: transform .2s var(--ease), border-color .2s, box-shadow .2s;
}
.contact-tile::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--red-2), var(--red)); opacity: 0; transition: opacity .22s;
}
.contact-tile:hover { transform: translateY(-4px); border-color: rgba(225, 29, 42, .5); box-shadow: 0 26px 54px rgba(0, 0, 0, .5), 0 0 0 1px rgba(225, 29, 42, .2); }
.contact-tile:hover::before { opacity: 1; }
/* primary actions emphasised */
.contact-tile--primary::before { opacity: 1; }
.contact-tile--whatsapp::before { opacity: 1; background: linear-gradient(180deg, #2ee06f, var(--whatsapp)); }
.contact-tile--whatsapp:hover { border-color: rgba(37, 211, 102, .5); box-shadow: 0 26px 54px rgba(0, 0, 0, .5), 0 0 0 1px rgba(37, 211, 102, .22); }
.ct-label { font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; color: var(--gray-400); font-weight: 700; }
.ct-value { font-weight: 700; color: #fff; font-size: 1rem; word-break: break-word; }
.contact-cta { display: flex; flex-wrap: wrap; gap: .7rem; justify-content: center; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  position: relative; color: #c9ccd1; padding: 54px 0 28px;
  background: linear-gradient(180deg, #0c0d10 0%, #08090b 100%);
}
.site-footer::before { /* feine rote Akzentlinie oben */
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(225, 29, 42, .55) 28%, rgba(225, 29, 42, .55) 72%, transparent);
}
.footer-inner { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: center; }
.footer-logo { height: 50px; width: auto; max-width: 260px; object-fit: contain; margin-bottom: .55rem; }
.footer-slogan span { font-weight: 700; color: #fff; }
.footer-slogan { margin: 0; }
.footer-contact p { margin: 0 0 .3rem; }
.footer-contact a { border-bottom: 1px solid transparent; transition: color .18s, border-color .18s; }
.footer-contact a:hover { color: #fff; border-color: var(--red); }
.footer-links { display: flex; gap: 1.2rem; }
.footer-links a { font-weight: 600; color: #fff; border-bottom: 2px solid transparent; padding-bottom: 2px; }
.footer-links a:hover { border-color: var(--red); }
.footer-copy { margin-top: 28px; padding-top: 18px; border-top: 1px solid #1c1e22; font-size: .86rem; color: var(--gray-400); }
.footer-copy p { margin: 0; }

/* ============================================================
   WhatsApp floating button
   ============================================================ */
.whatsapp-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 90;
  width: 54px; height: 54px; border-radius: 50%; color: #06381b;
  background: linear-gradient(180deg, #2ee06f, var(--whatsapp) 60%, #1cb457);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 26px rgba(37, 211, 102, .36), inset 0 1px 0 rgba(255, 255, 255, .4), 0 0 0 4px rgba(37, 211, 102, .12);
  transition: transform .15s var(--ease), box-shadow .2s;
}
.whatsapp-fab:hover { transform: scale(1.06); box-shadow: 0 16px 32px rgba(37, 211, 102, .46), 0 0 0 5px rgba(37, 211, 102, .16); }
.whatsapp-fab:focus-visible { outline: 3px solid #fff; outline-offset: 2px; }

/* ============================================================
   Legal pages
   ============================================================ */
.legal { padding: 56px 0 72px; }
.legal .container { max-width: 820px; }
.legal h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); }
.legal h2 { font-size: 1.2rem; margin-top: 1.8rem; }
.legal p, .legal li { color: var(--gray-600); }
.notice {
  background: #fff5f5; border: 1px solid #f3c2c5; border-left: 4px solid var(--red);
  padding: 16px 18px; border-radius: var(--radius-sm); color: #7a1018; margin: 0 0 1.6rem;
}
.notice strong { color: var(--red-dark); }
.back-link { display: inline-block; margin-bottom: 1.4rem; font-weight: 700; color: var(--red); }
.back-link:hover { text-decoration: underline; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .hero-photo { width: 48%; }
}

@media (max-width: 980px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 880px) {
  .hero-photo { display: none; }
  .hero-title { max-width: 22ch; }
}

/* Navigation früher einklappen, damit das Tablet-Menü nicht gedrängt wirkt */
@media (max-width: 860px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .mobile-nav.open { display: flex; }
  .brand { padding-right: 0; margin-right: .4rem; }
  .brand::after { display: none; }
  .btn-call span:not(.btn-icon) { display: none; }
  .btn-call { padding: .55rem .7rem; }
}

@media (max-width: 760px) {
  .hero-inner { padding: 68px 22px 76px; }
  .section { padding: 60px 0; }
}

@media (max-width: 520px) {
  .grid-3, .grid-4, .process, .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .hero-cta .btn, .contact-cta .btn { flex: 1 1 auto; }
}

/* Kleine Telefone: Kopfzeile kompakt halten, kein Überlauf */
@media (max-width: 480px) {
  .brand-logo { height: 42px; }
  .lang-switch button { padding: .36rem .52rem; font-size: .76rem; }
  .header-inner { gap: .55rem; }
  .header-actions { gap: .45rem; }
}

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