/* =========================================================
   Marian Wilhelm · Meisterbetrieb — Webvisitenkarte
   Designsprache: Fahrzeugbeschriftung (Schwarz / Feuer / Wasser / Silber)
   ========================================================= */

:root {
  /* Marken-Farben aus Logo & Fahrzeugbeschriftung */
  --fire:        #C3272D;
  --fire-hot:    #F04A1E;
  --fire-glow:   #FF7A2F;
  --water:       #1A72B2;
  --water-light: #34AEE8;
  --silver:      #C5C5C5;
  --silver-hi:   #FFFFFF;
  --silver-lo:   #6E7275;

  --ink:         #08090A;
  --ink-2:       #0E1012;
  --ink-3:       #15181B;
  --line:        rgba(197, 197, 197, .16);
  --text:        #D8DCDF;
  --text-dim:    #8C9296;

  --shell:       min(1240px, 92vw);
  --r:           2px;

  /* Skalierungsfaktor für Displays oberhalb FullHD (siehe Media-Queries am Ende) */
  --zoom:        1;

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body:    "Instrument Sans", "Segoe UI", sans-serif;

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

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 92px; }

body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Feine Rasterstruktur über der gesamten Seite (Werkstatt-Metall) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(197,197,197,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(197,197,197,.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 85%);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.shell { width: var(--shell); margin-inline: auto; position: relative; z-index: 1; }

/* ---------- Typografie ---------- */

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  line-height: .96;
  letter-spacing: .005em;
}

.metal {
  background: linear-gradient(176deg, #FFFFFF 0%, #C9CDD0 26%, #7C8286 52%, #E6E9EB 68%, #9AA0A4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .34em;
  font-size: .72rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: .9rem;
}
.eyebrow::before {
  content: "";
  width: 46px; height: 2px;
  background: linear-gradient(90deg, var(--fire), var(--fire-glow));
}

.lede { font-size: clamp(1.02rem, 1.5vw, 1.18rem); color: var(--text-dim); max-width: 62ch; }

/* Pipe-Trenner wie auf dem Fahrzeug: HEIZUNG | SANITÄR | GASKAMINE */
.pipes {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .22em;
  font-size: clamp(.78rem, 1.5vw, 1rem);
  color: var(--silver);
  display: flex; flex-wrap: wrap;
  gap: .4rem 1.1rem;
  align-items: center;
}
.pipes span { display: flex; align-items: center; gap: .4rem 1.1rem; }
.pipes span:not(:last-child)::after {
  content: "|";
  color: var(--silver-lo);
  font-weight: 300;
}

/* ---------- Buttons ---------- */

.btn {
  --btn-bg: transparent;
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .95rem;
  padding: .95rem 1.6rem;
  border: 1px solid var(--line);
  background: var(--btn-bg);
  color: var(--silver-hi);
  position: relative;
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s, color .3s;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover { transform: translateY(-2px); }

.btn--fire {
  background: linear-gradient(100deg, var(--fire) 0%, var(--fire-hot) 100%);
  border-color: transparent;
  box-shadow: 0 10px 34px -14px rgba(240, 74, 30, .9);
}
.btn--fire:hover { box-shadow: 0 16px 42px -14px rgba(240, 74, 30, 1); }

.btn--ghost:hover { border-color: var(--water-light); color: var(--water-light); }

/* ---------- Kopfzeile ---------- */

.head {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  padding: .9rem 0;
  transition: background .4s, backdrop-filter .4s, border-color .4s, padding .4s;
  border-bottom: 1px solid transparent;
}
.head.is-stuck {
  background: rgba(8, 9, 10, .88);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
  padding: .55rem 0;
}
.head__in { display: flex; align-items: center; gap: 2rem; }
.head__logo { flex: none; }
.head__logo img { height: 58px; width: auto; transition: height .4s var(--ease); }
.head.is-stuck .head__logo img { height: 46px; }

.nav { margin-left: auto; display: flex; gap: 2rem; }
.nav a {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .82rem;
  color: var(--text-dim);
  padding: .3rem 0;
  position: relative;
  transition: color .25s;
}
.nav a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--fire), var(--fire-glow));
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav a:hover { color: var(--silver-hi); }
.nav a:hover::after { transform: scaleX(1); }

.head__call {
  flex: none;
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-display);
  text-transform: uppercase; letter-spacing: .1em;
  font-size: .9rem;
  padding: .6rem 1.15rem;
  background: linear-gradient(100deg, var(--fire), var(--fire-hot));
  color: #fff;
  transition: transform .3s var(--ease), box-shadow .3s;
  box-shadow: 0 8px 26px -14px rgba(240, 74, 30, .9);
}
.head__call:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -14px rgba(240,74,30,1); }
.head__call svg { width: 16px; height: 16px; }

.burger { display: none; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: calc(100svh / var(--zoom));
  display: flex;
  align-items: center;
  padding: 9rem 0 7rem;
  isolation: isolate;
  overflow: hidden;
}

/* Feuer-Schweif (rechts unten) und Wasser-Welle (links) – Motiv der Beschriftung */
.hero__art { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero__art svg { position: absolute; }

.art-fire {
  right: -6%; bottom: -8%;
  width: calc(78vw / var(--zoom)); min-width: 760px;
  opacity: .9;
  filter: blur(.2px);
  animation: drift 26s ease-in-out infinite alternate;
}
.art-water {
  left: -12%; bottom: -14%;
  width: calc(70vw / var(--zoom)); min-width: 640px;
  opacity: .62;
  animation: drift 32s ease-in-out infinite alternate-reverse;
}
.art-city {
  right: 3%; bottom: 8%;
  width: 34vw; min-width: 320px; max-width: 520px;
  opacity: .34;
}
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(-2.5%, -2%, 0) scale(1.05); }
}

.hero::after { /* Vignette */
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(ellipse 70% 55% at 20% 45%, rgba(8,9,10,.2), rgba(8,9,10,.94) 72%);
}

.hero__in { max-width: 40rem; }

.hero h1 {
  font-size: clamp(2.9rem, 7.6vw, 5.6rem);
  margin: 1.6rem 0 1.4rem;
}
.hero h1 em {
  font-style: normal;
  display: block;
  background: linear-gradient(96deg, var(--fire-glow), var(--fire) 55%, var(--water) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero__meta {
  margin-top: 2.6rem;
  display: flex; flex-wrap: wrap; gap: 1rem;
}

.hero__scroll {
  position: absolute;
  left: 50%; bottom: 2rem;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: .68rem; letter-spacing: .3em; text-transform: uppercase;
  color: var(--silver-lo);
  display: flex; flex-direction: column; align-items: center; gap: .7rem;
}
.hero__scroll::after {
  content: "";
  width: 1px; height: 46px;
  background: linear-gradient(180deg, var(--silver-lo), transparent);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: .3; transform: scaleY(.6); } 50% { opacity: 1; transform: scaleY(1); } }

/* ---------- Abschnitte ---------- */

section { position: relative; padding: clamp(5rem, 11vw, 9rem) 0; }

.sec-head { max-width: 58rem; margin-bottom: clamp(2.6rem, 5vw, 4rem); }
.sec-head h2 {
  font-size: clamp(2.1rem, 4.6vw, 3.5rem);
  margin: 1.1rem 0 1.2rem;
}

/* ---------- Leistungen ---------- */

.services { background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 50%, var(--ink) 100%); }

.svc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.svc {
  background: var(--ink-2);
  padding: clamp(2rem, 3.4vw, 3rem);
  position: relative;
  overflow: hidden;
  transition: background .4s;
}
.svc::before { /* farbiger Lichtschein je Gewerk */
  content: "";
  position: absolute;
  top: -55%; right: -35%;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: var(--accent);
  filter: blur(70px);
  opacity: .16;
  transition: opacity .5s, transform .6s var(--ease);
}
.svc:hover { background: var(--ink-3); }
.svc:hover::before { opacity: .34; transform: translate(-14%, 12%); }

.svc--heizung { --accent: var(--fire-hot); }
.svc--sanitaer { --accent: var(--water); }
.svc--kamin   { --accent: var(--fire); }

.svc__ico {
  width: 46px; height: 46px;
  color: var(--accent);
  margin-bottom: 1.6rem;
}
.svc h3 { font-size: 1.55rem; margin-bottom: .9rem; color: var(--silver-hi); }
.svc p { color: var(--text-dim); font-size: .98rem; }

.svc__list { list-style: none; margin-top: 1.4rem; display: grid; gap: .55rem; }
.svc__list li {
  font-size: .9rem;
  color: var(--text);
  padding-left: 1.3rem;
  position: relative;
}
.svc__list li::before {
  content: "";
  position: absolute; left: 0; top: .62em;
  width: 7px; height: 1px;
  background: var(--accent);
}
.svc__num {
  position: absolute;
  right: 1.4rem; bottom: .4rem;
  font-family: var(--font-display);
  font-size: 5.5rem; font-weight: 700;
  color: rgba(197,197,197,.05);
  line-height: 1;
  pointer-events: none;
}

/* ---------- Betrieb / Werte ---------- */

.about__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.fact { background: var(--ink-2); padding: 1.8rem 1.6rem; }
.fact__k {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  line-height: 1;
  margin-bottom: .45rem;
}
.fact__v { font-size: .82rem; text-transform: uppercase; letter-spacing: .16em; color: var(--text-dim); font-family: var(--font-display); }

.checks { list-style: none; display: grid; gap: 1.1rem; margin-top: 2rem; }
.checks li { display: flex; gap: .95rem; align-items: flex-start; }
.checks svg { width: 20px; height: 20px; flex: none; margin-top: .28rem; color: var(--water-light); }

/* ---------- Notdienst-Band ---------- */

.alarm {
  background:
    radial-gradient(ellipse 60% 140% at 15% 50%, rgba(255,122,47,.42), transparent 62%),
    linear-gradient(100deg, #7E1418 0%, var(--fire) 46%, #E8451C 100%);
  padding: clamp(3.2rem, 6vw, 4.6rem) 0;
  overflow: hidden;
}
.alarm::before {
  content: "";
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(0,0,0,.14) 0 2px, transparent 2px 9px);
  mix-blend-mode: multiply;
  opacity: .5;
}
.alarm__in {
  display: flex; align-items: center; justify-content: space-between;
  gap: 2.4rem; flex-wrap: wrap;
}
.alarm h2 { font-size: clamp(1.9rem, 4.2vw, 3rem); color: #fff; }
.alarm p { color: rgba(255,255,255,.86); margin-top: .7rem; max-width: 46ch; }
.alarm .eyebrow { color: rgba(255,255,255,.78); }
.alarm .eyebrow::before { background: #fff; }

.alarm__tel {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 600;
  color: #fff;
  display: inline-flex; align-items: center; gap: 1rem;
  padding: 1rem 1.9rem;
  border: 2px solid rgba(255,255,255,.55);
  background: rgba(0,0,0,.22);
  transition: background .3s, border-color .3s, transform .3s var(--ease);
  white-space: nowrap;
}
.alarm__tel:hover { background: #08090A; border-color: #08090A; transform: translateY(-3px); }
.alarm__tel svg { width: 30px; height: 30px; }

/* ---------- Kontakt ---------- */

.contact { background: var(--ink); }

.contact__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}
.card {
  background: var(--ink);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  transition: background .35s;
}
.card:hover { background: var(--ink-2); }
.card h3 {
  font-size: .8rem; letter-spacing: .22em; color: var(--text-dim);
  margin-bottom: 1.1rem; font-weight: 500;
}
.card p, .card a { font-size: 1.06rem; color: var(--silver-hi); line-height: 1.5; }
.card a { border-bottom: 1px solid transparent; transition: border-color .3s, color .3s; }
.card a:hover { color: var(--fire-glow); border-bottom-color: var(--fire-glow); }
.card small { display: block; color: var(--text-dim); font-size: .88rem; margin-top: .5rem; }

.contact__cta { margin-top: 2.8rem; display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------- Fußzeile ---------- */

.foot {
  border-top: 1px solid var(--line);
  padding: 3.4rem 0 2.4rem;
  background: var(--ink-2);
}
.foot__in { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; align-items: flex-start; }
.foot img { height: 62px; width: auto; }
.foot__nav { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.foot__nav a, .foot small {
  font-size: .84rem; color: var(--text-dim);
  transition: color .25s;
}
.foot__nav a:hover { color: var(--silver-hi); }
.foot__bar {
  margin-top: 2.6rem; padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}

.credit a {
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
  transition: color .25s, border-color .25s;
}
.credit a:hover { color: var(--water-light); border-bottom-color: var(--water-light); }

/* Feuer/Wasser-Kante über der Fußzeile */
.edge { height: 3px; background: linear-gradient(90deg, var(--water) 0%, var(--water-light) 22%, var(--silver-lo) 48%, var(--fire) 74%, var(--fire-glow) 100%); }

/* ---------- Rechtstexte (Impressum / Datenschutz) ---------- */

.legal { padding: 11rem 0 6rem; }
.legal .shell { max-width: 74ch; }
.legal h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 2.4rem; }
.legal h2 { font-size: 1.3rem; margin: 2.8rem 0 .9rem; color: var(--silver-hi); }
.legal h3 { font-size: 1.02rem; margin: 1.8rem 0 .6rem; color: var(--silver); letter-spacing: .04em; }
.legal p, .legal li { color: var(--text-dim); font-size: .98rem; margin-bottom: .8rem; }
.legal ul { padding-left: 1.2rem; }
.legal a { color: var(--water-light); border-bottom: 1px solid rgba(52,174,232,.35); }
.legal a:hover { color: var(--fire-glow); border-bottom-color: var(--fire-glow); }
.legal strong { color: var(--text); font-weight: 600; }
.legal .back { display: inline-flex; align-items: center; gap: .6rem; margin-top: 3rem; }

/* ---------- Scroll-Reveal ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- Responsiv ---------- */

@media (max-width: 940px) {
  .about__grid { grid-template-columns: 1fr; }

  .burger {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    margin-left: auto;
    width: 46px; height: 40px;
    background: none; border: 1px solid var(--line); cursor: pointer;
    align-items: center;
  }
  .burger span { display: block; width: 20px; height: 2px; background: var(--silver); transition: transform .3s var(--ease), opacity .3s; }
  .burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 0;
    padding: 6.5rem 7vw 2.6rem;
    background: rgba(8,9,10,.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 1.5rem;
    margin: 0;
    transform: translateY(-100%);
    transition: transform .5s var(--ease);
    z-index: -1;
  }
  .nav.is-open { transform: none; }
  .nav a { font-size: 1.5rem; letter-spacing: .1em; color: var(--silver); }

  .head__call span { display: none; }
  .head__call { padding: .7rem .85rem; margin-left: .6rem; }

  /* Rechtstexte: schlichte Kopfnavigation ohne Menü-Overlay */
  .nav--plain {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 1.1rem;
    padding: 0;
    background: none;
    backdrop-filter: none;
    border: 0;
    transform: none;
    z-index: auto;
  }
  .nav--plain a { font-size: .78rem; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .facts { grid-template-columns: 1fr; }
  .hero { padding-top: 8rem; }
  .hero__scroll { display: none; }
  .art-city { opacity: .18; }
  .alarm__tel { font-size: 1.35rem; padding: .85rem 1.2rem; gap: .7rem; }
  .alarm__tel svg { width: 22px; height: 22px; }
}

/* ---------- Große Displays: Layout proportional hochskalieren ---------- */
/* Oberhalb FullHD wirkt die Seite sonst sehr klein. `zoom` skaliert das
   komplette Layout inkl. fixierter Elemente und erzeugt – anders als
   `transform: scale()` – keine falschen Scrollhöhen oder Klickversätze.
   Viewport-Einheiten (svh/vw) werden von `zoom` nicht mitskaliert, daher
   wird --zoom dort gegengerechnet (siehe .hero). */

@media (min-width: 1921px) {
  :root { --zoom: 1.15; }
  html  { zoom: 1.15; }
}

@media (min-width: 2200px) {
  :root { --zoom: 1.3; }
  html  { zoom: 1.3; }
}

@media (min-width: 2600px) {
  :root { --zoom: 1.45; }
  html  { zoom: 1.45; }
}

@media (min-width: 3200px) {
  :root { --zoom: 1.7; }
  html  { zoom: 1.7; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; }
}