@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Inter+Tight:wght@600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap");

/* ==========================================
   Base (Split-Ziel: base.css)
========================================== */

:root {
  --bg: #eef2f7;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --line: #d6dde8;
  --line-strong: #a8b3c2;
  --text: #0f172a;
  --muted: #475569;

  --accent: #2457d6;
  --accent-soft: #dbe7ff;

  --font-ui: "Inter", "Segoe UI", "Arial", sans-serif;
  --font-body: "Inter", "Segoe UI", "Arial", sans-serif;
  --font-heading: "Inter Tight", "Inter", "Segoe UI", "Arial", sans-serif;
  --font-mono: "JetBrains Mono", "Intel One Mono", "SFMono-Regular", "Consolas", monospace;

  --curriculum: #edf8f2;
  --content: #eef5ff;
  --task: #fef9c3;
  --tool: #f4efff;

  --shadow: 0 10px 28px rgba(15, 23, 42, 0.08);

  --radius: 18px;
  --radius-sm: 12px;

  --maxw: 1240px;

  /* UI-Systemtokens */
  --ui-motion-duration: 200ms;
  --ui-motion-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ui-motion-press-duration: 120ms;
  --ui-lift-hover: translateY(-1px);
  --ui-press-scale: 0.985;

  --ui-radius-lg: var(--radius-xl, 24px);
  --ui-radius-md: var(--radius-lg, 18px);
  --ui-radius-sm: var(--radius-md, 14px);
  --ui-radius-control: var(--radius-sm, 12px);

  --ui-border-soft: rgba(216, 221, 230, 0.32);
  --ui-border-strong: rgba(185, 202, 232, 0.42);
  --ui-focus-ring: 0 0 0 2px rgba(130, 162, 220, 0.24);

  --ui-shadow-container: var(--glass-box-shadow, 0 14px 30px rgba(7, 12, 22, 0.26));
  --ui-shadow-surface: 0 10px 24px rgba(4, 8, 18, 0.28);
  --ui-shadow-raised: 0 12px 28px rgba(4, 8, 18, 0.32);

  --icon-badge-size: 52px;
  --icon-core-size: 40px;
  --viewport-top-gap: 2px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  color: var(--color-text, var(--text));
  background: rgb(5 9 18 / 44%);
  line-height: var(--lh-body, 1.6);
  min-height: 100vh;
  overflow-x: clip;
  position: relative;
  isolation: isolate;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
}

button,
input,
textarea,
select {
  font-family: var(--font-ui);
}

code,
pre,
kbd,
samp {
  font-family: var(--font-mono);
}

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

.background-video {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  filter: brightness(0.6) saturate(0.94);
  pointer-events: none;
}

/* Linkfarben: Legacy-Fallback zuerst, kanonische Token-Überschreibung danach */
a {
  color: var(--accent);
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
}