/* ============================================================
   GIGA GROUP - Cinematic Signature + Micro-Polish
   Laedt NACH style.css. Alles GPU-guenstig, mit
   prefers-reduced-motion-Fallbacks. Aendert keine Live-Daten.
   ============================================================ */

/* ---------- 1. Globales Film-Grain (ein gegradetes Kino-Bild) ---------- */

.fx-grain {
  position: fixed;
  inset: 0;
  z-index: 39;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  overflow: hidden;
}

.fx-grain::before {
  content: "";
  position: absolute;
  inset: -100%;
  width: 300%;
  height: 300%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  animation: fx-grain-shift 0.6s steps(6) infinite;
}

@keyframes fx-grain-shift {
  0%   { transform: translate(0, 0); }
  16%  { transform: translate(-8%, 4%); }
  33%  { transform: translate(6%, -6%); }
  50%  { transform: translate(-4%, 8%); }
  66%  { transform: translate(8%, 2%); }
  83%  { transform: translate(-6%, -4%); }
  100% { transform: translate(0, 0); }
}

/* ---------- 2. Hero-Grading: Gold-Light-Leak + Vignette ---------- */

.slide--hero .slide__bg-video { z-index: 0; }

.slide--hero .slide__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 85% at 82% 8%, rgba(200, 162, 77, 0.20), transparent 44%),
    radial-gradient(150% 130% at 50% 46%, transparent 52%, rgba(0, 0, 0, 0.5) 100%);
  animation: hero-leak 24s ease-in-out infinite alternate;
}

.slide--hero .slide__bg::after { z-index: 2; }

@keyframes hero-leak {
  from { transform: translate(0, 0); opacity: 0.85; }
  to   { transform: translate(-3%, 2%); opacity: 1; }
}

/* ---------- 3. Masked Title-Reveals (Zeilen steigen hinter Maske hoch) ---------- */

.slide__title.reveal { opacity: 1; transform: none; filter: none; transition: none; }

.slide__title .tline { display: block; overflow: hidden; padding-bottom: 0.16em; }

.slide__title .tline__inner {
  display: block;
  transform: translateY(112%);
  transition: transform 0.95s var(--ease);
}

.slide__title.title-in .tline__inner { transform: none; }
.slide__title.title-in .tline:nth-child(2) .tline__inner { transition-delay: 0.09s; }
.slide__title.title-in .tline:nth-child(3) .tline__inner { transition-delay: 0.18s; }

/* Gold-Unterstrich unter der Hero-Schlusszeile */
#hero .slide__title .tline:last-child .tline__inner { position: relative; }
#hero .slide__title .tline:last-child .tline__inner::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.1em;
  height: 3px;
  width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease) 0.55s;
}
#hero .slide__title.title-in .tline:last-child .tline__inner::after { transform: scaleX(1); }

/* ---------- 4a. Gold-Aurora hinter dem Statement ---------- */

.statement { position: relative; overflow: hidden; }

.statement::before {
  content: "";
  position: absolute;
  z-index: 0;
  left: 50%;
  top: 46%;
  width: 70vw;
  height: 70vw;
  max-width: 900px;
  max-height: 900px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(200, 162, 77, 0.10), transparent 62%);
  filter: blur(60px);
  pointer-events: none;
  animation: aurora-drift 32s ease-in-out infinite alternate;
}

.statement > * { position: relative; z-index: 1; }

@keyframes aurora-drift {
  from { transform: translate(-58%, -54%) scale(0.9); }
  to   { transform: translate(-42%, -46%) scale(1.12); }
}

/* ---------- 4b. Gold-Shimmer-Sweep (einmalig, auf der Gold-Zeile) ---------- */

.statement__gold.in-view {
  background: linear-gradient(100deg, var(--accent) 32%, #fbe7bf 50%, var(--accent) 68%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gold-shimmer 1.4s var(--ease) 0.35s 1 both;
}

@keyframes gold-shimmer {
  from { background-position: 130% 0; }
  to   { background-position: -30% 0; }
}

/* ---------- 5. Duotone -> Farbe auf den Sparten-Bildern beim Reinscrollen ---------- */

.slide__bg-img {
  filter: saturate(0.35) brightness(0.82) contrast(1.05);
  transition: filter 1.1s var(--ease);
}
.slide.in-view .slide__bg-img { filter: none; }

/* ---------- 6. Fact-Chips leben bei Hover ---------- */

.slide__facts span {
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), padding 0.3s var(--ease), letter-spacing 0.3s var(--ease);
}
.slide__facts span:hover {
  color: var(--text);
  border-color: var(--accent);
  padding-left: 18px;
  letter-spacing: 0.26em;
}
.slide--right .slide__facts span:hover {
  padding-left: 0;
  padding-right: 18px;
}

/* ---------- 7. CTA Gold-Sweep + Pfeil ---------- */

.btn {
  position: relative;
  overflow: hidden;
  z-index: 0;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.42s var(--ease);
}
.btn:hover::before { transform: scaleX(1); }
.btn:hover { color: #0a0a0c; border-color: var(--accent); background: transparent; }
.btn--ghost:hover { color: #0a0a0c; }

.btn__arrow {
  display: inline-block;
  margin-left: 0.5em;
  transform: translateX(-2px);
  transition: transform 0.35s var(--ease);
}
.btn:hover .btn__arrow { transform: translateX(3px); }

/* Externer Link-Pfeil (zur Firmen-Website) */
.btn__ext {
  display: inline-block;
  margin-left: 0.5em;
  transition: transform 0.35s var(--ease);
}
.btn--ext:hover .btn__ext { transform: translate(3px, -3px); }

/* "Website in Kuerze" - deaktivierter Zustand */
.btn--soon {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

/* ---------- 8. E-Mail Copy-to-Clipboard ---------- */

.copymail { position: relative; cursor: pointer; }
.copymail__hint {
  display: inline-block;
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  vertical-align: middle;
}
.copymail.copied .copymail__hint { opacity: 1; transform: none; }

/* ---------- 9a. Gold-Scroll-Progress-Hairline unter der Nav ---------- */

.nav::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  background: var(--accent);
  transform: scaleX(var(--progress, 0));
  transform-origin: left;
}

/* ---------- 9b. Nav verdichtet sich beim Scrollen ---------- */

.nav { transition: background 0.35s ease, border-color 0.35s ease, height 0.4s var(--ease); }
.nav--solid { height: 58px; }
.nav__brand { transition: letter-spacing 0.4s var(--ease); }
.nav--solid .nav__brand { letter-spacing: 0.24em; }

/* ---------- 10. Back-to-Top Gold-Control ---------- */

.totop {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 36;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  background: rgba(12, 12, 15, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--accent);
  color: var(--accent);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0.35s, background 0.25s ease, color 0.25s ease;
}
.totop.show { opacity: 1; visibility: visible; transform: none; }
.totop:hover { background: var(--accent); color: #0a0a0c; }
.totop svg { width: 16px; height: 16px; }

/* ---------- 11. Koordinaten-Raster-Motiv auf dunklen Baendern ---------- */

.stats, .statement {
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 88px);
  background-position: center;
}

.stats { position: relative; }
.stats::before, .stats::after {
  content: "+";
  position: absolute;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.18);
  pointer-events: none;
}
.stats::before { top: 18px; left: 18px; }
.stats::after { bottom: 18px; right: 18px; }

/* ---------- 12. Formular: Inline-Erfolg (Gold-Haekchen) ---------- */

.formsuccess {
  display: inline-flex;
  vertical-align: middle;
  margin-right: 8px;
  width: 0;
  overflow: hidden;
  transition: width 0.3s var(--ease);
}
.contact__note.ok .formsuccess { width: 18px; }
.formsuccess svg { width: 16px; height: 16px; stroke: var(--accent); }
.formsuccess path {
  stroke-dasharray: 20;
  stroke-dashoffset: 20;
}
.contact__note.ok .formsuccess path {
  animation: check-draw 0.5s var(--ease) 0.1s forwards;
}
@keyframes check-draw { to { stroke-dashoffset: 0; } }

/* ---------- Reduced Motion: alle neuen Bewegungen ruhigstellen ---------- */

@media (prefers-reduced-motion: reduce) {
  .fx-grain::before { animation: none; }
  .slide--hero .slide__bg::before { animation: none; }
  .slide__title .tline__inner { transform: none; transition: none; }
  #hero .slide__title .tline:last-child .tline__inner::after { transform: scaleX(1); transition: none; }
  .statement::before { animation: none; }
  .statement__gold.in-view { animation: none; }
  .slide__bg-img { transition: none; }
  .nav, .nav__brand { transition: background 0.35s ease, border-color 0.35s ease; }
  .formsuccess, .formsuccess path { transition: none; animation: none; }
  .contact__note.ok .formsuccess path { animation: none; stroke-dashoffset: 0; }
}