/* ==========================================================================
   VastoBau Markenfamilie — gemeinsames Design-System
   Farben und Logo sind aus dem bisherigen Projekt übernommen (echter
   Blau-Verlauf #005bea→#00c6fb, der auf vastobau.de und elektrotechnik-
   vastobau.de durchgängig für Buttons/Akzente verwendet wurde; Anthrazit
   #303030 von kernbohrungen-vastobau.de). Jede Seite bleibt inhaltlich bei
   ihrer eigenen Sparte, das Bohrkern-Ringmotiv ist nur bei kernbohrungen
   (Kernbohrungen = Kreise bohren) im Einsatz.
   ========================================================================== */

:root {
  /* Basis — Weiß/Hellgrau/Anthrazit, wie im bisherigen Projekt */
  --weiss: #ffffff;
  --grau-hell: #f2f2f2;
  --grau-mittel: #8a8d91;
  --anthrazit: #262626;
  --anthrazit-soft: #333333;

  /* Marke — echter Blau-Verlauf aus dem alten Projekt */
  --blau-tief: #005bea;
  --blau-hell: #00c6fb;
  --marke-gradient: linear-gradient(120deg, var(--blau-tief), var(--blau-hell));
  --marke: var(--blau-tief);
  --marke-hell: var(--blau-hell);

  /* Hintergrund/Text (Standard, hell) */
  --bg: var(--weiss);
  --bg-soft: var(--grau-hell);
  --text: var(--anthrazit);
  --text-soft: var(--grau-mittel);

  /* Typografie */
  --font-display: 'Big Shoulders Display', 'Arial Narrow', sans-serif;
  --font-body: 'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', monospace;

  /* Abstände */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 3rem;
  --space-5: 5rem;
  --space-6: 8rem;

  --radius: 4px;
  --container: 1240px;
}

@font-face {
  font-family: 'Big Shoulders Display';
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url('/fonts/BigShouldersDisplay-400-900.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('/fonts/IBMPlexSans-400-600.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/IBMPlexSans-400i.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/IBMPlexMono-400.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/IBMPlexMono-500.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/IBMPlexMono-600.woff2') format('woff2');
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

h1, h2, h3, .display {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 0.94;
  margin: 0;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--marke);
  display: flex;
  align-items: center;
  gap: 0.6em;
}

.eyebrow::before {
  content: '';
  width: 1.6em;
  height: 1px;
  background: currentColor;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

@media (max-width: 640px) {
  .container { padding-inline: var(--space-2); }
}

/* -- Logo ------------------------------------------------------------------ */

.brand-logo { height: 2.1rem; width: auto; display: block; }

/* -- Buttons: Verlauf-Pill (Standardstil, aus dem alten Projekt) ----------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  border-radius: 999px;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.btn--solid {
  background: var(--marke-gradient);
  color: var(--weiss);
  box-shadow: 0 8px 20px -8px rgba(0, 91, 234, 0.55);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--grau-mittel);
}

.btn:hover { transform: translateY(-2px); }
.btn--solid:hover { box-shadow: 0 12px 26px -8px rgba(0, 91, 234, 0.65); }
.btn--ghost:hover { border-color: var(--marke); color: var(--marke); }

/* -- Bohrkern-Ringmotiv: NUR für kernbohrungen-vastobau.de ----------------- */

.ring-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.6rem 0.9rem 0.5rem;
  border-radius: 999px;
  border: 1.5px solid currentColor;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.2s ease;
}

.ring-btn .ring-mark {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.ring-btn .ring-mark::after {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
}

.ring-btn--solid {
  background: var(--marke-gradient);
  border-color: transparent;
  color: var(--weiss);
}

.ring-btn:hover { transform: translateY(-2px); }
.ring-btn--ghost:hover { background: var(--anthrazit); color: var(--weiss); border-color: var(--anthrazit); }

/* -- Kreidelinie-Trenner (Messmarken-Divider) — technisches Motiv, seitenübergreifend gültig */

.chalk-divider {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-block: var(--space-2);
  color: var(--grau-mittel);
}

.chalk-divider .ticks {
  flex: 1;
  height: 9px;
  background-image: repeating-linear-gradient(
    90deg,
    currentColor 0,
    currentColor 1px,
    transparent 1px,
    transparent 12px
  );
  background-position: bottom;
  background-size: 100% 1px;
  background-repeat: repeat-x;
  opacity: 0.5;
  position: relative;
  top: 4px;
}

.chalk-divider .label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--marke);
}

/* -- Utility -------------------------------------------------------------- */

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

:focus-visible {
  outline: 3px solid var(--marke);
  outline-offset: 3px;
}