/* Köppke Investment — Single-screen, no-scroll, premium */

:root {
  --bg: #000000;
  --bg-soft: #0a0a0a;
  --ink: #f5f1e6;
  --ink-dim: rgba(245, 241, 230, 0.55);
  --ink-faint: rgba(245, 241, 230, 0.28);
  --line: rgba(212, 175, 55, 0.18);
  --gold: oklch(0.74 0.14 82);
  --gold-warm: oklch(0.86 0.12 88);
  --gold-deep: oklch(0.54 0.11 75);
  --gold-gradient: linear-gradient(135deg,
    oklch(0.86 0.12 88) 0%,
    oklch(0.74 0.14 82) 28%,
    oklch(0.92 0.10 90) 50%,
    oklch(0.62 0.12 76) 75%,
    oklch(0.82 0.13 84) 100%);
  --font-display: "Cormorant Garamond", "Cormorant", Georgia, serif;
  --font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: #000;
  background-image:
    radial-gradient(ellipse 70% 60% at 50% 35%, rgba(212,175,55,0.10), transparent 70%),
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(212,175,55,0.04), transparent 70%);
}

/* Subtle grain */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.7'/></svg>");
}

::selection { background: var(--gold); color: #000; }

/* === STAGE — fills viewport, centers content === */
.stage {
  position: relative;
  z-index: 2;
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: center;
  justify-items: center;
}

.content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: clamp(1.5rem, 3.2vh, 3rem);
  padding: clamp(2rem, 5vh, 4rem) clamp(1.5rem, 4vw, 3rem) 0;
  max-width: 1100px;
  width: 100%;
}

/* === LOGO === */
.logo-wrap {
  width: clamp(250px, 34vh, 437px);
  aspect-ratio: 1 / 1;
  position: relative;
  opacity: 0;
  animation: logoFade 1.6s ease 0.2s forwards;
}
.logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 80px rgba(212, 175, 55, 0.25));
}

@keyframes logoFade {
  to { opacity: 1; }
}

/* === EYEBROW === */
.eyebrow {
  font-size: clamp(0.65rem, 0.9vw, 0.78rem);
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  opacity: 0;
  animation: fadeIn 1.4s ease 1.0s forwards;
}
.eyebrow::before, .eyebrow::after {
  content: "";
  display: inline-block;
  width: 36px;
  height: 1px;
  background: var(--gold);
  opacity: 0.6;
}

/* === HEADLINE === */
.headline {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vh, 6rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.015em;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.05em;
}

.headline .word {
  display: inline-block;
  line-height: 1.1;
  opacity: 0;
  transform: translateY(14px);
  animation: wordIn 1.2s cubic-bezier(0.22, 0.68, 0.32, 1) forwards;
}
.headline .word span {
  display: inline-block;
}
.headline .w1 { animation-delay: 0.6s; }
.headline .w2 { animation-delay: 0.78s; }
.headline .w3 { animation-delay: 0.96s; }

.headline .gold {
  background: var(--gold-gradient);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 9s ease-in-out infinite;
  position: relative;
}

/* Foil-shimmer sweep on hover over the headline */
.headline:hover .gold {
  animation: shimmer 9s ease-in-out infinite, foilSweep 1.6s cubic-bezier(0.22, 0.68, 0.32, 1);
}
@keyframes foilSweep {
  0%   { background-position: -150% 50%; filter: brightness(1.0); }
  40%  { filter: brightness(1.6); }
  100% { background-position: 250% 50%; filter: brightness(1.0); }
}
.headline .italic { font-style: italic; font-weight: 300; }

@keyframes wordIn {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* === SUB === */
.sub {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.2vh, 1.55rem);
  color: var(--ink);
  font-style: italic;
  font-weight: 300;
  letter-spacing: 0.01em;
  margin: 0;
  max-width: 640px;
  opacity: 0;
  animation: fadeIn 1.6s ease 1.4s forwards;
}

/* === DIVIDER === */
.divider {
  width: clamp(80px, 12vh, 140px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  animation: fadeIn 1.6s ease 1.7s forwards;
}

/* === FOOTER (impressum link) === */
.footer {
  position: relative;
  z-index: 3;
  width: 100%;
  padding: clamp(1rem, 2.4vh, 1.8rem) clamp(1.5rem, 4vw, 3rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: clamp(0.65rem, 0.85vw, 0.72rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  opacity: 0;
  animation: fadeIn 1.4s ease 2.1s forwards;
}
.footer-left, .footer-right {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}
.lang-switch {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.lang-switch button {
  background: none;
  border: none;
  color: var(--ink-faint);
  cursor: pointer;
  font: inherit;
  letter-spacing: inherit;
  padding: 0.1rem 0.3rem;
  transition: color 0.3s ease;
}
.lang-switch button.active { color: var(--gold); }
.lang-switch button:hover { color: var(--ink); }
.lang-sep { color: var(--ink-faint); opacity: 0.5; }

.impressum-link {
  background: none;
  border: none;
  color: var(--ink-faint);
  font: inherit;
  letter-spacing: inherit;
  cursor: pointer;
  padding: 0.2rem 0;
  position: relative;
  transition: color 0.3s ease;
}
.impressum-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s cubic-bezier(0.22, 0.68, 0.32, 1);
}
.impressum-link:hover {
  color: var(--gold);
}
.impressum-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

@keyframes fadeIn { to { opacity: 1; } }

/* === IMPRESSUM OVERLAY === */
.imp-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: grid;
  place-items: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
  overflow-y: auto;
}
.imp-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.imp-card {
  max-width: 720px;
  width: 100%;
  padding: clamp(2rem, 4vh, 3.5rem) clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(212,175,55,0.02), rgba(0,0,0,0.4));
  position: relative;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.6s cubic-bezier(0.22, 0.68, 0.32, 1);
}
.imp-overlay.open .imp-card {
  transform: translateY(0) scale(1);
}
.imp-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 1rem;
  transition: border-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}
.imp-close:hover {
  border-color: var(--gold);
  transform: rotate(90deg);
}
.imp-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.imp-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
  margin: 0 0 1.6rem;
  letter-spacing: -0.01em;
}
.imp-hairline {
  height: 1px;
  width: 60px;
  background: var(--gold);
  margin-bottom: 1.6rem;
}
.imp-blocks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem 2rem;
}
@media (max-width: 560px) {
  .imp-blocks { grid-template-columns: 1fr; }
}
.imp-block h4 {
  font-family: var(--font-sans);
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0 0 0.6rem;
}
.imp-block p {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--ink-dim);
  margin: 0;
  white-space: pre-line;
}
.imp-block p span { white-space: pre-line; }
.imp-block strong {
  color: var(--ink);
  font-weight: 500;
}
.imp-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(212,175,55,0.4);
  transition: border-color 0.3s ease;
}
.imp-link:hover { border-bottom-color: var(--gold); }
.imp-placeholder {
  display: inline-block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.65rem;
  color: var(--gold);
  opacity: 0.7;
  margin-top: 0.4rem;
  letter-spacing: 0.04em;
  text-transform: none;
}
.imp-disclaimer {
  grid-column: 1 / -1;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  margin-top: 0.4rem;
}

/* === CINEMATIC INTRO === */
.intro-veil {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: #000;
  pointer-events: none;
  animation: veilOut 1.6s ease 0.3s forwards;
}
.intro-flash {
  position: fixed;
  inset: 0;
  z-index: 99;
  background:
    radial-gradient(circle at 50% 50%, rgba(244, 217, 138, 0.45) 0%, rgba(244, 217, 138, 0.12) 25%, transparent 55%);
  pointer-events: none;
  opacity: 0;
  animation: flashIn 1.8s ease 0.4s forwards;
}
@keyframes veilOut {
  0%   { opacity: 1; }
  60%  { opacity: 1; }
  100% { opacity: 0; }
}
@keyframes flashIn {
  0%   { opacity: 0; transform: scale(0.4); }
  35%  { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.4); }
}

/* Hide grain under modal (it's noisy) */
body.modal-open::before { opacity: 0.12; }
body.modal-open .net-canvas { opacity: 0.25; transition: opacity 0.5s ease; }
.net-canvas {
  position: fixed;
  top: 0;
  right: 0;
  width: 45vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  /* Stronger left fade so the network stays clear of the centered logo */
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 25%, rgba(0,0,0,0.6) 55%, rgba(0,0,0,0) 85%);
  mask-image: linear-gradient(to left, rgba(0,0,0,1) 25%, rgba(0,0,0,0.6) 55%, rgba(0,0,0,0) 85%);
  opacity: 0;
  animation: fadeIn 2s ease 0.4s forwards;
}

@media (max-width: 760px) {
  .net-canvas {
    width: 100vw;
    opacity: 0.32;
    /* Radiale Maske: Logo-Zentrum freihalten, Punkte nur drumherum sichtbar */
    -webkit-mask-image: radial-gradient(ellipse 60% 32% at 50% 32%,
      transparent 0%,
      transparent 35%,
      rgba(0,0,0,0.55) 60%,
      rgba(0,0,0,1) 90%);
    mask-image: radial-gradient(ellipse 60% 32% at 50% 32%,
      transparent 0%,
      transparent 35%,
      rgba(0,0,0,0.55) 60%,
      rgba(0,0,0,1) 90%);
  }

  /* iOS-Safari: 100vh ist zu groß (Adressleiste zählt mit) → dynamische VH nutzen */
  html, body { height: 100dvh; }
  .stage { height: 100dvh; }

  /* Logo kompakter, damit Footer in den sichtbaren Bereich passt */
  .logo-wrap { width: clamp(160px, 26vh, 240px); }

  /* Content-Gaps und Padding reduzieren */
  .content {
    gap: clamp(0.9rem, 2.2vh, 1.8rem);
    padding-top: clamp(1rem, 3.5vh, 2.5rem);
  }

  /* Headline etwas kleiner für mehr Luft */
  .headline { font-size: clamp(2.2rem, 7vh, 4rem); }

  /* Footer kompakter, mit Safe-Area-Inset für iPhones mit Home-Indicator */
  .footer {
    padding: 0.9rem 1.2rem;
    padding-bottom: max(0.9rem, env(safe-area-inset-bottom));
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    gap: 0.8rem;
    flex-wrap: nowrap;
  }
  .footer-left, .footer-right { gap: 0.9rem; }
}

/* Sehr schmale Geräte (iPhone SE etc.): Footer untereinander stapeln */
@media (max-width: 380px) {
  .footer {
    flex-direction: column;
    gap: 0.6rem;
    text-align: center;
  }
  .footer-left, .footer-right { gap: 0.8rem; }
}