/*
  Basis-Theme und globale Tokens.
  Diese Variablen steuern Farben, Radien und Schatten im ganzen Projekt.
*/
:root {
  --bg-main: #050505;
  --bg-surface: #0d0d0d;
  --bg-card: #121212;
  --text-main: #f3f3f3;
  --text-soft: #b6b6b6;
  --accent: #ff7a1a;
  --accent-soft: rgba(255, 122, 26, 0.22);
  --line: rgba(255, 255, 255, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

/* Einheitliches Box-Modell für alle Elemente */
* {
  box-sizing: border-box;
}

/* Browser-Standardabstände entfernen */
html,
body {
  margin: 0;
  padding: 0;
}

/* Grundlayout und Typografie */
body {
  font-family: "DM Sans", sans-serif;
  color: var(--text-main);
  background: var(--bg-main);
  line-height: 1.55;
}

/* Startseite ohne Scrollbereich */
body.home-page {
  height: 100svh;
  overflow: hidden;
}

/* Links standardisieren */
a {
  color: inherit;
  text-decoration: none;
}

/* Bilder responsiv halten */
img {
  display: block;
  max-width: 100%;
}

/* Wiederverwendbarer Inhalts-Container */
.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

/* Weicher Glow-Hintergrund hinter allen Inhalten */
.site-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 8% 12%, rgba(255, 122, 26, 0.32), transparent 32%),
    radial-gradient(circle at 88% 18%, rgba(255, 122, 26, 0.12), transparent 26%),
    radial-gradient(circle at 45% 82%, rgba(255, 122, 26, 0.08), transparent 34%);
  z-index: -1;
}

/* Obere Navigation bleibt beim Scrollen sichtbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  background: rgba(5, 5, 5, 0.75);
}

/* Navigation ausrichten */
.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
}

/* Kreisförmiges Brand-Element */
.brand {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--accent-soft);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* Navigationslinks horizontal */
.nav-links {
  position: relative;
  isolation: isolate;
  display: flex;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(220, 220, 220, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(220, 220, 220, 0.28);
  background: rgba(255, 255, 255, 0.02);
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-direction: column;
  cursor: pointer;
  padding: 0;
}

.nav-toggle-line {
  width: 17px;
  height: 2px;
  background: var(--text-main);
  border-radius: 999px;
  transition: transform 220ms ease, opacity 220ms ease;
}

.nav-active-pill {
  position: absolute;
  top: 6px;
  left: 0;
  height: calc(100% - 12px);
  width: 0;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(255, 122, 26, 0.45);
  box-shadow: 0 0 0 1px rgba(255, 122, 26, 0.15) inset;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transform: translateX(0);
  transition:
    transform 280ms cubic-bezier(0.22, 1, 0.36, 1),
    width 280ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 160ms ease;
}

/* Ruhiger Default für Links */
.nav-links a {
  position: relative;
  z-index: 1;
  color: var(--text-soft);
  font-size: 0.95rem;
  padding: 7px 12px;
  border-radius: 999px;
  transition:
    color 220ms ease,
    background-color 220ms ease,
    border-color 220ms ease,
    transform 220ms ease,
    box-shadow 220ms ease;
}

/* Hover hebt aktive Interaktion hervor */
.nav-links a:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.nav-link-active {
  color: var(--text-main);
}

/* Touch-Geraete erzwingen das mobile Nav-Verhalten, auch bei "Desktop-Website". */
.touch-device body.home-page {
  height: auto;
  min-height: 100svh;
  overflow: auto;
}

.touch-device .nav-wrap {
  min-height: 72px;
  padding: 8px 0;
  align-items: center;
  flex-direction: row;
}

.touch-device .nav-toggle {
  display: inline-flex;
}

.touch-device .nav-links {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  display: grid;
  gap: 6px;
  padding: 8px;
  border-radius: 16px;
  background: rgba(10, 10, 10, 0.96);
  border: 1px solid rgba(220, 220, 220, 0.22);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease;
}

.touch-device .nav-wrap.nav-open .nav-links {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.touch-device .nav-wrap.nav-open .nav-toggle-line:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.touch-device .nav-wrap.nav-open .nav-toggle-line:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.touch-device .nav-active-pill {
  display: none;
}

.touch-device .nav-links a {
  font-size: 0.9rem;
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border-radius: 12px;
}

@media (prefers-reduced-motion: reduce) {
  .nav-active-pill,
  .nav-links a,
  .nav-links a.nav-link-active {
    transition: none;
  }
}

/* Standard-Section-Abstand */
.section {
  padding: 84px 0;
}

/* Startzustand für Reveal-Animationen */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 420ms ease, transform 420ms ease;
}

/* Sichtbarer Zustand nach IntersectionObserver */
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile Feinschliff */
@media (max-width: 1024px), (hover: none) and (pointer: coarse) {
  body.home-page {
    height: auto;
    min-height: 100svh;
    overflow: auto;
  }

  .section {
    padding: 68px 0;
  }

  .nav-wrap {
    min-height: 72px;
    padding: 8px 0;
    align-items: center;
    flex-direction: row;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: grid;
    gap: 6px;
    padding: 8px;
    border-radius: 16px;
    background: rgba(10, 10, 10, 0.96);
    border: 1px solid rgba(220, 220, 220, 0.22);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 220ms ease, transform 220ms ease;
  }

  .nav-wrap.nav-open .nav-links {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-wrap.nav-open .nav-toggle-line:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .nav-wrap.nav-open .nav-toggle-line:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .nav-active-pill {
    display: none;
  }

  .nav-links a {
    font-size: 0.9rem;
    display: block;
    width: 100%;
    text-align: left;
    padding: 10px 12px;
    border-radius: 12px;
  }
}