/* ===========================================================
   ArkTherm — Design Tokens
   Konzept: "Thermal" — kalte Außenwelt trifft warme Energie,
   wie eine Wärmebildkamera. Indigo-Navy (kalt) + Koralle/Amber (warm).
   =========================================================== */

:root {
  /* Farben */
  --navy-950: #0B0E1A;
  --navy-900: #12182B;
  --navy-800: #1B2340;
  --navy-700: #263155;
  --navy-line: rgba(255, 255, 255, 0.09);

  --coral: #FF6B4A;
  --coral-dim: #E85A3B;
  --amber: #FFB648;

  --cream: #F6F1E9;
  --cream-dim: #EDE6D8;

  --text-hi: #F7F4EE;
  --text-mid: rgba(247, 244, 238, 0.72);
  --text-low: rgba(247, 244, 238, 0.5);

  --text-hi-dark: #14161F;
  --text-mid-dark: rgba(20, 22, 31, 0.68);

  /* Thermal-Gradient — das wiederkehrende Signature-Element */
  --thermal-gradient: linear-gradient(90deg, #2E4A8F 0%, #7B4FA6 28%, #FF6B4A 62%, #FFB648 100%);

  /* Typografie */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Radius & Spacing */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;

  --container: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  background: var(--navy-900);
  color: var(--text-hi);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.08;
}

p { margin: 0; line-height: 1.6; }

a { color: inherit; text-decoration: none; }

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* Thermal underline — signature accent used on key words */
.thermal-underline {
  position: relative;
  display: inline-block;
}
.thermal-underline::after {
  content: '';
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: 0.05em;
  height: 0.16em;
  background: var(--thermal-gradient);
  opacity: 0.9;
  z-index: -1;
  border-radius: 4px;
}

/* Thermal divider bar — used between sections */
.thermal-bar {
  height: 3px;
  width: 72px;
  border-radius: 3px;
  background: var(--thermal-gradient);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  padding: 15px 28px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--thermal-gradient);
  background-size: 200% 100%;
  background-position: 60% 0;
  color: #0B0E1A;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 107, 74, 0.35);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--navy-line);
  color: var(--text-hi);
}

.btn-ghost:hover { border-color: var(--coral); color: var(--coral); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 10px var(--coral);
}

section { position: relative; }

.section-pad { padding: 120px 0; }

@media (max-width: 900px) {
  .section-pad { padding: 80px 0; }
  .container { padding: 0 24px; }
}

:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}