/* ============================================================
   Berger TGA Technik — Lüftung · Klima · Heizung, Metten
   Design-Vorschau von Scaling LLC. Reines HTML/CSS/JS.
   ============================================================ */

:root {
  color-scheme: dark;

  --bg:        #15191D;   /* tiefes technisches Anthrazit */
  --bg-2:      #1B2025;
  --bg-3:      #232A30;
  --light:     #F5F7F8;   /* kühles Off-White */
  --light-2:   #E7ECEE;
  --cyan:      #2FA5C4;   /* Signal-Cyan / Eisblau — Luft & Klima */
  --cyan-soft: #55BFDA;
  --cyan-dim:  rgba(47,165,196,.14);
  --copper:    #B5763F;   /* warmes Kupfer (sehr sparsam, Heizung) */
  --ink:       #15191D;   /* Text auf hell */
  --muted-dark:#9AA7AF;   /* gedämpft auf dunkel */
  --muted-light:#5A666D;  /* gedämpft auf hell */
  --line-dark:  rgba(245,247,248,.12);
  --line-light: rgba(21,25,29,.12);

  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 1200px;
  --nav-h: 78px;

  --shadow-sm: 0 6px 20px rgba(0,0,0,.22);
  --shadow-md: 0 22px 55px rgba(0,0,0,.36);
  --radius: 14px;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: var(--nav-h); }
body {
  font-family: var(--sans); background: var(--bg); color: var(--light);
  line-height: 1.65; font-size: 17px; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.08; letter-spacing: .002em; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
.section { padding: clamp(66px, 10vw, 122px) 0; }
.section--light { background: var(--light); color: var(--ink); }
.section--dark  { background: var(--bg); color: var(--light); }
.section--alt   { background: var(--bg-2); color: var(--light); }

/* Mono-Labels / Eyebrow */
.eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: .22em; text-transform: uppercase; color: var(--cyan);
}
.eyebrow::before { content: ""; width: 34px; height: 1.5px; background: var(--cyan); }
.eyebrow--center { justify-content: center; }

.section-head { max-width: 720px; margin-bottom: 54px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { font-size: clamp(34px, 5vw, 56px); margin-top: 18px; }
.section-head p { margin-top: 16px; opacity: .82; font-size: 17px; }
.section--light .section-head p { color: var(--muted-light); opacity: 1; }

.text-cyan { color: var(--cyan); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 26px; border-radius: 999px; font-weight: 600; font-size: 15.5px;
  border: 1.5px solid transparent; min-height: 52px;
  transition: transform .18s ease, background .2s, box-shadow .2s, color .2s, border-color .2s;
}
.btn:active { transform: translateY(1px); }
.btn--cyan { background: var(--cyan); color: #062831; box-shadow: 0 10px 28px rgba(47,165,196,.28); }
.btn--cyan:hover { background: var(--cyan-soft); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--light); border-color: rgba(245,247,248,.42); }
.btn--ghost:hover { border-color: var(--light); background: rgba(245,247,248,.07); }
.btn--dark { background: var(--bg); color: var(--light); }
.btn--dark:hover { background: #0C0F12; }
.btn .arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ============================================================ NAV */
.nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(17,20,24,.97);
  border-bottom: 1px solid var(--line-dark);
}
@supports (backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px)) {
  .nav { background: rgba(17,20,24,.7); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
}
.nav__inner { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; flex-direction: column; line-height: 1; }
.brand__word { font-family: var(--sans); font-weight: 800; font-size: 21px; letter-spacing: .1em; color: var(--light); }
.brand__word b { color: var(--cyan); font-weight: 800; }
.brand__sub { font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; color: var(--muted-dark); margin-top: 5px; }

.nav__links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav__links a { font-size: 15px; font-weight: 500; color: var(--muted-dark); transition: color .18s; position: relative; }
.nav__links a:hover { color: var(--light); }
.nav__links a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--cyan); transition: width .2s; }
.nav__links a:hover::after { width: 100%; }
.nav__links .btn { display: none; }

.nav__cta { display: flex; align-items: center; gap: 12px; }
.burger { display: none; width: 46px; height: 46px; border-radius: 10px; background: transparent; border: 1px solid var(--line-dark); position: relative; }
.burger span, .burger span::before, .burger span::after { content: ""; position: absolute; left: 50%; transform: translateX(-50%); width: 20px; height: 2px; background: var(--light); transition: .22s ease; }
.burger span { top: 50%; margin-top: -1px; }
.burger span::before { top: -6px; } .burger span::after { top: 6px; }
.nav.open .burger span { background: transparent; }
.nav.open .burger span::before { top: 0; transform: translateX(-50%) rotate(45deg); }
.nav.open .burger span::after  { top: 0; transform: translateX(-50%) rotate(-45deg); }

/* ============================================================ HERO */
.hero { position: relative; min-height: calc(100svh - var(--nav-h)); display: flex; align-items: center; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: 0; object-fit: cover; width: 100%; height: 100%; }
.hero__overlay {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(90deg, rgba(11,14,17,.95) 0%, rgba(13,16,20,.86) 42%, rgba(15,19,23,.55) 76%, rgba(15,19,23,.42) 100%),
    linear-gradient(0deg, rgba(11,14,17,.7) 0%, rgba(11,14,17,0) 50%);
}
/* technisches Gitter-/Linien-Muster, sehr dezent */
.hero__grid {
  position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(47,165,196,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47,165,196,.10) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 100% at 15% 30%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(120% 100% at 15% 30%, #000 0%, transparent 72%);
}
.hero__inner { position: relative; z-index: 2; width: 100%; padding-block: clamp(48px, 9vw, 92px); }
.hero__content { max-width: 760px; }
.hero h1 { font-size: clamp(46px, 8vw, 92px); margin-top: 22px; }
.hero__lead { margin-top: 22px; font-size: clamp(16px, 2vw, 19px); color: #DCE3E6; max-width: 560px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.hero__divider { height: 1px; background: var(--line-dark); margin: 46px 0 26px; max-width: 620px; }
.stats { display: flex; gap: clamp(28px, 6vw, 68px); flex-wrap: wrap; }
.stat__num { font-family: var(--serif); font-weight: 400; font-size: clamp(30px, 4.4vw, 44px); color: var(--cyan); line-height: 1.05; }
.stat__num .star { font-size: .6em; vertical-align: .12em; }
.stat__label { font-family: var(--mono); font-size: 11.5px; color: var(--muted-dark); margin-top: 8px; letter-spacing: .12em; text-transform: uppercase; }

/* ============================================================ WEM WIR HELFEN */
.helfen__intro { display: grid; grid-template-columns: 1.02fr .98fr; gap: clamp(36px, 6vw, 72px); align-items: center; margin-bottom: 56px; }
.helfen__intro .body p { color: var(--muted-light); margin-top: 18px; }
.helfen__media { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); aspect-ratio: 4/3; }
.helfen__media img { width: 100%; height: 100%; object-fit: cover; }
.helfen__media .tag { position: absolute; left: 16px; bottom: 16px; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--light); background: rgba(11,14,17,.68); border: 1px solid var(--line-dark); border-radius: 999px; padding: 6px 13px; }

.audience { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.acard {
  background: var(--light); border: 1px solid var(--line-light); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .22s ease, box-shadow .22s, border-color .22s;
}
.acard:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(47,165,196,.4); }
.acard__ico { width: 54px; height: 54px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 18px; background: var(--cyan-dim); color: var(--cyan); border: 1px solid rgba(47,165,196,.3); }
.acard h3 { font-size: 25px; color: var(--ink); }
.acard p { margin-top: 10px; color: var(--muted-light); font-size: 15px; }
.acard .kicker { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); }

/* ============================================================ LEISTUNGEN (Bild-Karten) */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card {
  background: var(--bg-2); border: 1px solid var(--line-dark); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .22s ease, border-color .22s;
}
.card:hover { transform: translateY(-6px); border-color: rgba(47,165,196,.5); }
.card__media { aspect-ratio: 16/11; overflow: hidden; background: var(--bg-3); position: relative; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.card:hover .card__media img { transform: scale(1.06); }
.card__media .num { position: absolute; top: 12px; left: 13px; font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--light); background: rgba(11,14,17,.6); border-radius: 6px; padding: 3px 8px; }
.card__body { padding: 24px 22px 26px; }
.card__body h3 { font-size: 23px; }
.card__body p { margin-top: 10px; color: var(--muted-dark); font-size: 14.5px; }

/* ============================================================ VERSPRECHEN (dunkel, nummeriert) */
.promise { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden; }
.promise__item { background: var(--bg); padding: 34px 30px; transition: background .22s; }
.promise__item:hover { background: var(--bg-2); }
.promise__num { font-family: var(--mono); font-size: 13px; color: var(--cyan); letter-spacing: .1em; }
.promise__item h3 { font-size: 22px; margin-top: 14px; }
.promise__item p { margin-top: 10px; color: var(--muted-dark); font-size: 14.5px; }

/* ============================================================ BEWERTUNGEN */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review { background: #fff; border: 1px solid var(--line-light); border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.review__stars { color: var(--cyan); font-size: 18px; letter-spacing: 3px; }
.review__text { margin-top: 16px; color: var(--ink); font-size: 16px; flex-grow: 1; }
.review__foot { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line-light); }
.review__name { font-weight: 700; color: var(--ink); }
.review__src { font-family: var(--mono); font-size: 11.5px; color: var(--muted-light); margin-top: 3px; letter-spacing: .06em; }
.reviews__line { text-align: center; margin-top: 34px; font-family: var(--mono); font-size: 13px; letter-spacing: .08em; color: var(--muted-light); }
.reviews__line b { color: var(--ink); }
.reviews__line .st { color: var(--cyan); }

/* ============================================================ GALERIE */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gallery__item { position: relative; border: 0; padding: 0; overflow: hidden; border-radius: 12px; aspect-ratio: 4/3; background: var(--bg-3); cursor: zoom-in; display: block; }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gallery__item:hover img { transform: scale(1.06); }
.gallery__item::after { content: ""; position: absolute; inset: 0; background: rgba(11,14,17,0); transition: background .25s; }
.gallery__item:hover::after { background: rgba(11,14,17,.22); }
.gallery__zoom { position: absolute; right: 10px; bottom: 10px; z-index: 2; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: rgba(11,14,17,.7); color: var(--light); opacity: 0; transform: scale(.85); transition: .25s; }
.gallery__item:hover .gallery__zoom { opacity: 1; transform: scale(1); }

.lightbox { position: fixed; inset: 0; z-index: 500; display: none; place-items: center; padding: 24px; background: rgba(8,10,12,.93); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }
.lightbox.open { display: grid; }
.lightbox img { max-width: min(1100px, 94vw); max-height: 86vh; border-radius: 8px; box-shadow: var(--shadow-md); }
.lightbox__close, .lightbox__nav { position: absolute; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.25); color: #fff; border-radius: 50%; width: 52px; height: 52px; font-size: 22px; display: grid; place-items: center; transition: background .2s; }
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(255,255,255,.24); }
.lightbox__close { top: 22px; right: 22px; }
.lightbox__nav { top: 50%; transform: translateY(-50%); }
.lightbox__nav--prev { left: 22px; } .lightbox__nav--next { right: 22px; }
.lightbox__cap { position: absolute; bottom: 22px; left: 0; right: 0; text-align: center; color: var(--muted-dark); font-family: var(--mono); font-size: 12.5px; letter-spacing: .06em; }

/* ============================================================ ABLAUF */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { padding-top: 20px; border-top: 2px solid var(--line-dark); }
.step__num { font-family: var(--mono); font-size: 13px; color: var(--cyan); letter-spacing: .1em; }
.step h3 { font-size: 21px; margin-top: 12px; }
.step p { margin-top: 10px; color: var(--muted-dark); font-size: 14.5px; }

/* ============================================================ KONTAKT */
.contact__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(30px, 5vw, 56px); align-items: start; }
.form { display: grid; gap: 16px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase; color: var(--muted-dark); }
.field label .req { color: var(--cyan); }
.field input, .field select, .field textarea { font-family: inherit; font-size: 15.5px; color: var(--light); background: var(--bg-2); border: 1px solid var(--line-dark); border-radius: 10px; padding: 13px 15px; width: 100%; transition: border-color .18s, box-shadow .18s; }
.field textarea { resize: vertical; min-height: 118px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(47,165,196,.22); }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239AA7AF' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 15px center; padding-right: 40px; }
.check { display: flex; gap: 11px; align-items: flex-start; font-size: 14px; color: var(--muted-dark); }
.check input { width: 20px; height: 20px; margin-top: 2px; flex-shrink: 0; accent-color: var(--cyan); }
.check a { color: var(--cyan); text-decoration: underline; }
.form .btn { justify-self: start; margin-top: 4px; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.contact__side { display: grid; gap: 22px; }
.contact__call { background: var(--cyan); color: #062831; border-radius: var(--radius); padding: 28px 30px; box-shadow: var(--shadow-md); }
.contact__call span { font-family: var(--mono); font-weight: 500; letter-spacing: .1em; text-transform: uppercase; font-size: 12px; }
.contact__call .tel { font-family: var(--serif); font-size: clamp(26px, 3.6vw, 34px); margin: 6px 0 18px; display: block; }
.contact__call .btn { background: var(--bg); color: var(--light); width: 100%; }
.contact__call .btn:hover { background: #0C0F12; }
.info-block h3 { font-family: var(--mono); font-size: 12px; color: var(--cyan); font-weight: 500; letter-spacing: .1em; text-transform: uppercase; }
.info-block p { color: var(--muted-dark); margin-top: 7px; }
.info-block a:hover { color: var(--cyan); }
.hours { width: 100%; border-collapse: collapse; margin-top: 4px; }
.hours td { padding: 9px 0; border-bottom: 1px solid var(--line-dark); font-size: 15px; }
.hours td:last-child { text-align: right; color: var(--muted-dark); }
.hours tr.today td { color: var(--cyan); font-weight: 700; }
.hours tr.today td:last-child { color: var(--cyan); }
.hours tr.today td:first-child::after { content: " · heute"; font-family: var(--mono); font-size: 10.5px; color: var(--cyan); }

/* ============================================================ FOOTER */
.footer { background: #0E1114; color: var(--muted-dark); }
.map { width: 100%; height: 340px; border: 0; display: block; filter: grayscale(.35); }
.footer__main { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; padding: 60px 0 40px; }
.footer h4 { font-family: var(--mono); color: var(--light); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 16px; font-weight: 500; }
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer a:hover { color: var(--cyan); }
.footer__brand .brand { margin-bottom: 16px; }
.footer__brand p { max-width: 340px; font-size: 15px; }
.footer__ship { margin-top: 16px; font-size: 13.5px; }
.footer__ship b { color: var(--light); font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; display: block; margin-bottom: 3px; }
.footer__bottom { border-top: 1px solid var(--line-dark); padding: 22px 0; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; font-size: 13.5px; }
.footer__bottom .scaling { color: var(--cyan); font-weight: 600; }

/* ---------- TODO marker ---------- */
.todo { outline: 1px dashed rgba(47,165,196,.6); outline-offset: 2px; background: rgba(47,165,196,.12); border-radius: 3px; padding: 0 3px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* ============================================================ LEGAL */
.legal { padding: clamp(48px, 8vw, 96px) 0; background: var(--light); color: var(--ink); min-height: 70vh; }
.legal .wrap { max-width: 820px; }
.legal h1 { font-size: clamp(34px, 5vw, 52px); margin-top: 14px; }
.legal h2 { font-family: var(--sans); font-weight: 800; font-size: 20px; color: var(--ink); margin: 40px 0 10px; }
.legal p, .legal address { color: var(--muted-light); margin-top: 12px; font-style: normal; }
.legal a { color: var(--cyan); font-weight: 600; }
.legal a:hover { text-decoration: underline; }
.legal .back { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--cyan); margin-bottom: 8px; font-family: var(--mono); font-size: 13px; }
.legal .note { background: var(--cyan-dim); border: 1px dashed var(--cyan); border-radius: 12px; padding: 16px 18px; margin-top: 22px; color: #2b6779; }

/* ============================================================ RESPONSIVE */
@media (max-width: 1000px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .audience { grid-template-columns: 1fr; }
  .promise { grid-template-columns: repeat(2, 1fr); }
  .reviews { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .helfen__intro { grid-template-columns: 1fr; }
  .helfen__media { order: -1; max-width: 560px; margin-inline: auto; }
  .contact__grid { grid-template-columns: 1fr; }
  .footer__main { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .burger { display: block; }
  .nav__cta .btn--cyan { display: none; }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(14,17,20,.99); border-bottom: 1px solid var(--line-dark); box-shadow: var(--shadow-md);
    padding: 8px 24px 18px; max-height: 0; overflow: hidden; opacity: 0; pointer-events: none;
    transition: max-height .3s ease, opacity .25s ease, padding .3s ease;
  }
  @supports (backdrop-filter: blur(8px)) { .nav__links { background: rgba(14,17,20,.9); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); } }
  .nav.open .nav__links { max-height: 520px; opacity: 1; pointer-events: auto; padding-block: 12px 20px; }
  .nav__links li { border-bottom: 1px solid var(--line-dark); }
  .nav__links li:last-child { border-bottom: 0; }
  .nav__links a { display: block; padding: 15px 4px; font-size: 17px; color: var(--light); }
  .nav__links a::after { display: none; }
  .nav__links .btn { display: inline-flex; margin-top: 14px; width: 100%; }
  .hero__overlay { background: linear-gradient(180deg, rgba(11,14,17,.72) 0%, rgba(11,14,17,.64) 42%, rgba(11,14,17,.9) 100%); }
  .hero__actions .btn { flex: 1 1 100%; }
  .cards, .steps, .gallery, .promise { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__main { grid-template-columns: 1fr; }
}
@media (max-width: 380px) { .stats { gap: 22px; } }

/* Preview-Modus (iframe ?preview=1): Scroll-Reveals sofort sichtbar, Animationen ruhen */
.is-preview [data-reveal],
.is-preview .rv,
.is-preview .reveal,
.is-preview [class*="reveal"]{opacity:1!important;transform:none!important;transition:none!important;}

/* Preview: kein internes Scrollen, Header nicht sticky (Standbild) */
.is-preview, .is-preview body { overflow: hidden !important; position: static !important; }
.is-preview header, .is-preview nav, .is-preview .nav, .is-preview .topbar, .is-preview .navbar { position: static !important; }

/* Preview: Hero nicht an Viewport-Hoehe binden */
.is-preview .hero{min-height:600px!important;}