/* ==========================================================================
   TOUCHFIX — layout.css
   Werkbank (WebGL), Navigation, Sektionen, Footer.
   ========================================================================== */

/* ---------- Persistente WebGL-Werkbank ---------- */
.stage {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}
.stage.is-ready { opacity: 1; }
.stage canvas { width: 100%; height: 100%; }

/* Fallback ohne WebGL: ruhiges Arbeitslicht statt Partikel.
   Blendet sich selbst ein — scene.reveal() läuft in diesem Fall nicht. */
.stage.is-fallback {
  opacity: 1;
  background:
    radial-gradient(58% 48% at 72% 28%, rgba(255, 148, 32, 0.16), transparent 70%),
    radial-gradient(42% 42% at 22% 72%, rgba(184, 92, 0, 0.14), transparent 70%);
}

/* Feiner Staub — nimmt der Fläche das Digitale */
.grain {
  position: fixed;
  inset: -50%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 6s steps(6) infinite;
}
@keyframes grain {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(-4%, 3%); }
  40%  { transform: translate(3%, -4%); }
  60%  { transform: translate(-3%, -2%); }
  80%  { transform: translate(4%, 2%); }
  100% { transform: translate(0, 0); }
}

/* Scroll-Fortschritt */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 90;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--amber-600), var(--amber-300));
}

/* Inhalt liegt grundsätzlich über der Werkbank */
main, .nav, .footer { position: relative; z-index: 2; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 80;
  transition: transform 0.5s var(--ease), background-color 0.4s linear, border-color 0.4s linear;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(12, 12, 15, 0.76);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--hair);
}
.nav.is-hidden { transform: translateY(-100%); }

.nav__inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(0.9rem, 1.6vw, 1.35rem) var(--gut);
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 3rem);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-right: auto;
}
.brand__mark {
  width: 11px; height: 11px;
  border-radius: 2px;
  background: var(--amber-400);
  align-self: center;
  box-shadow: 0 0 14px rgba(255, 148, 32, 0.55);
  transition: transform 0.5s var(--ease);
}
.brand:hover .brand__mark { transform: rotate(45deg); }
.brand__word {
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-mute);
}

.nav__links {
  display: flex;
  gap: clamp(1rem, 2.2vw, 2.2rem);
}
.nav__links a {
  position: relative;
  font-size: 0.88rem;
  color: var(--fg-dim);
  transition: color 0.3s var(--ease);
  padding-block: 0.25rem;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--amber-400);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.45s var(--ease);
}
.nav__links a:hover { color: var(--fg); }
.nav__links a.is-active { color: var(--fg); }
.nav__links a.is-active::after { transform: scaleX(1); }

.nav__end {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav__toggle {
  display: none;
  width: 42px; height: 42px;
  place-items: center;
  border: 1px solid var(--hair-strong);
  border-radius: var(--radius);
}
.nav__toggle-lines {
  display: block;
  width: 17px;
}
.nav__toggle-lines i {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.4s var(--ease), opacity 0.3s linear;
}
.nav__toggle-lines i:first-child { margin-bottom: 5px; }
.nav__toggle[aria-expanded="true"] .nav__toggle-lines i:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-lines i:last-child { transform: translateY(-3.25px) rotate(-45deg); }

/* ---------- Mobiles Menü ---------- */
.menu {
  position: fixed;
  inset: 0;
  z-index: 79;
  background: var(--steel-900);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2rem;
  padding: 6rem var(--gut) 3rem;
}
.menu__nav {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.menu__nav a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  font-size: clamp(2rem, 9vw, 3.2rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  padding-block: 0.35rem;
  border-bottom: 1px solid var(--hair);
}
.menu__nav a i {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-style: normal;
  letter-spacing: 0.14em;
  color: var(--amber-400);
}
.menu__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-dim);
}
.menu__foot a:hover { color: var(--amber-300); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding: clamp(8rem, 18vh, 12rem) 0 clamp(2rem, 5vh, 3.5rem);
}
.hero__inner {
  display: flex;
  flex-direction: column;
  gap: clamp(1.6rem, 3.5vw, 2.6rem);
}

.hero__title {
  font-size: clamp(3rem, 9.2vw, 8.6rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.94;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  align-items: end;
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-top: clamp(0.5rem, 2vw, 1.5rem);
  border-top: 1px solid var(--hair);
}
.hero__lede {
  max-width: 46ch;
  color: var(--fg-dim);
  font-size: clamp(1rem, 1.15vw, 1.15rem);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.hero__foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.hero__scroll {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.hero__scroll-rail {
  position: relative;
  display: block;
  width: 54px; height: 1px;
  background: var(--hair-strong);
  overflow: hidden;
}
.hero__scroll-rail i {
  position: absolute;
  inset: 0;
  background: var(--amber-400);
  transform-origin: 0 50%;
  animation: rail 2.6s var(--ease-io) infinite;
}
@keyframes rail {
  0%       { transform: translateX(-100%); }
  55%, 100%{ transform: translateX(100%); }
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 4vw, 3.5rem);
}
.hero__stats dt { margin-bottom: 0.3rem; }
.hero__stats dd {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

/* ---------- Ticker ---------- */
.ticker {
  position: relative;
  z-index: 2;
  overflow: hidden;
  padding-block: 1.05rem;
  border-block: 1px solid var(--hair);
  background: rgba(8, 8, 10, 0.5);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker__rail {
  display: flex;
  width: max-content;
  will-change: transform;
}
.ticker__group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-right: 1.5rem;
  white-space: nowrap;
}
.ticker__group span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--fg-dim);
}
.ticker__group i {
  font-style: normal;
  font-size: 0.55rem;
  color: var(--amber-500);
}

/* ---------- Haltung ---------- */
.manifest { padding-block: var(--sec-y); }
.manifest__text {
  font-size: clamp(1.5rem, 3.4vw, 2.9rem);
  font-weight: 500;
  line-height: 1.24;
  letter-spacing: -0.03em;
  max-width: 22ch;
  text-wrap: balance;
}
.manifest__text .w { color: #33343b; transition: color 0.3s linear; }
.manifest__sign {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--hair);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: space-between;
}

/* ---------- Leistungen ---------- */
.services { padding-block: var(--sec-y); }
.services__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.45fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.services__aside { position: sticky; top: 7rem; }
.services__note {
  margin-top: 1.5rem;
  max-width: 34ch;
  color: var(--fg-dim);
  font-size: 0.95rem;
}
.services__signature {
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
  padding-top: 1rem;
  border-top: 1px solid var(--hair);
}
.services__signature strong {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--amber-300);
}

/* ---------- Ablauf (heller Einschub, gepinnt) ---------- */
.flow {
  position: relative;
  z-index: 2;
  padding-block: var(--sec-y);
  overflow: hidden;
}
.flow.is-pinning { padding-bottom: clamp(3rem, 6vw, 5rem); }
.flow__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.flow__note {
  color: var(--fg-on-paper-dim);
  max-width: 42ch;
  font-size: 0.98rem;
}

.flow__track { overflow-x: auto; scrollbar-width: none; }
.flow__track::-webkit-scrollbar { display: none; }
.flow__track.is-pinned { overflow: visible; }

.flow__rail {
  display: flex;
  gap: clamp(1rem, 2vw, 1.75rem);
  padding-inline: var(--gut);
  width: max-content;
  scroll-snap-type: x mandatory;
}
.flow__track:not(.is-pinned) .flow__rail { scroll-snap-type: none; }

.step {
  flex: none;
  width: clamp(255px, 27vw, 355px);
  padding: clamp(1.4rem, 2.4vw, 2rem);
  border: 1px solid var(--hair-dark);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.5);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  scroll-snap-align: center;
}
.step__num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--amber-600);
}
.step__title {
  font-size: clamp(1.3rem, 2vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}
.step__text {
  color: var(--fg-on-paper-dim);
  font-size: 0.94rem;
  line-height: 1.55;
}
.step__meta {
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--hair-dark);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--fg-on-paper-dim);
}
.step__meta b { font-weight: 500; color: var(--fg-on-paper); }

/* ---------- Klartext: Kostenvoranschlag, Dauer, Garantie ---------- */
.promise { padding-block: var(--sec-y); }
.promise__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.promise__note { color: var(--fg-dim); max-width: 44ch; }

.promise__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  border-top: 1px solid var(--hair);
}
.pledge {
  padding: clamp(1.5rem, 2.6vw, 2.2rem) clamp(1rem, 2vw, 1.75rem) clamp(1.5rem, 2.6vw, 2.2rem) 0;
  border-bottom: 1px solid var(--hair);
  border-right: 1px solid var(--hair);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.pledge:last-child { border-right: 0; }
.pledge__mark {
  width: 26px; height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--jade-600);
  border-radius: 50%;
  color: var(--jade-400);
}
.pledge__mark svg { width: 12px; height: 12px; }
.pledge h3 {
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}
.pledge p { color: var(--fg-dim); font-size: 0.93rem; line-height: 1.55; }

/* ---------- Zahlen ---------- */
.figures { padding-block: var(--sec-y); }
.figures__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}
.figure {
  background: var(--steel-800);
  padding: clamp(1.6rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.figure__value {
  font-size: clamp(2.4rem, 5vw, 3.9rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--amber-300);
}
.figure__label { color: var(--fg-dim); font-size: 0.92rem; }

/* ---------- Ankauf (beiläufiger Einschub) ---------- */
.buyback {
  position: relative;
  z-index: 2;
  border-block: 1px solid var(--hair);
  background: rgba(8, 8, 10, 0.45);
}
.buyback__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: clamp(1.5rem, 3vw, 2.25rem);
  flex-wrap: wrap;
}
.buyback__text { max-width: 62ch; color: var(--fg-dim); font-size: 0.97rem; }
.buyback__text b { color: var(--fg); font-weight: 600; }

/* ---------- Bewertungen ---------- */
.voices { padding-block: var(--sec-y); }
.voices__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: clamp(1rem, 2vw, 1.5rem);
}
.voice {
  padding: clamp(1.5rem, 2.6vw, 2.1rem);
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: rgba(23, 24, 28, 0.4);
}
.voice__stars { display: flex; gap: 2px; color: var(--amber-400); }
.voice__stars svg { width: 13px; height: 13px; }
.voice blockquote { font-size: 1rem; line-height: 1.6; }
.voice figcaption {
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--hair);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.voice figcaption b { font-weight: 600; font-size: 0.9rem; }

.voices__note { margin-top: 1.5rem; }

/* ---------- FAQ ---------- */
.faq { padding-block: var(--sec-y); }
.faq__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.5fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.faq__aside { position: sticky; top: 7rem; }

/* ---------- Kontakt ---------- */
.contact { padding-block: var(--sec-y); }
.contact__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.35fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.contact__lede {
  margin-top: 1.5rem;
  color: var(--fg-dim);
  max-width: 38ch;
}
.contact__details {
  margin-top: clamp(2rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.contact__block { display: flex; flex-direction: column; gap: 0.35rem; }
.contact__block a, .contact__block p { font-size: 1rem; }
.contact__block a:hover { color: var(--amber-300); }
.contact__hours {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.2rem 1.25rem;
  font-size: 0.94rem;
}
.contact__hours dt { color: var(--fg-dim); }
.contact__hours dd { font-variant-numeric: tabular-nums; }

/* ---------- Footer ---------- */
.footer {
  padding-block: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 3vw, 2.5rem);
  border-top: 1px solid var(--hair);
}
.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 0.8fr));
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}
.footer__claim {
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.08;
  max-width: 18ch;
}
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 1rem;
}
.footer__col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__col a, .footer__col li { font-size: 0.94rem; color: var(--fg-dim); }
.footer__col a:hover { color: var(--amber-300); }

.footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--hair);
  display: flex;
  justify-content: space-between;
  gap: 1rem 2rem;
  flex-wrap: wrap;
  align-items: center;
}
.footer__legal { display: flex; gap: 1.5rem; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .services__inner,
  .faq__inner,
  .contact__inner { grid-template-columns: minmax(0, 1fr); }
  .services__aside, .faq__aside { position: static; }
  .footer__top { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer__claim { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__toggle { display: grid; }
  .nav__end .btn--sm { display: none; }
  .hero__grid { grid-template-columns: minmax(0, 1fr); }
  .hero__actions { justify-content: flex-start; }
  .flow__head, .promise__head { grid-template-columns: minmax(0, 1fr); }
  .promise__grid { grid-template-columns: minmax(0, 1fr); }
  .pledge { border-right: 0; padding-right: 0; }
}

@media (max-width: 560px) {
  .hero__foot { flex-direction: column; align-items: flex-start; gap: 2.5rem; }
  .hero__stats { gap: 1.5rem 2rem; }
  .footer__top { grid-template-columns: minmax(0, 1fr); }
  .buyback__inner { flex-direction: column; align-items: flex-start; }
}