/* ============================================================
   Layux Basis-Styles
   Schrift (self-hosted Inter), Reset, Typografie-Grundlagen
   ============================================================ */

/* --- Inter (Variable Font, self-hosted, Lizenz: assets/fonts/LICENSE.txt) --- */
@font-face {
  font-family: "Inter Variable";
  src: url("../assets/fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter Variable";
  src: url("../assets/fonts/InterVariable-Italic.woff2") format("woff2");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

/* --- Reset --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
  /* Erlaubt Übergänge zu Schlüsselwort-Größen (z. B. FAQ-Aufklappen zu block-size: auto) */
  interpolate-size: allow-keywords;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background:
    radial-gradient(circle at 12% 0%, var(--color-primary-glow), transparent 28rem),
    linear-gradient(160deg, var(--color-bg) 0%, var(--color-bg-soft) 100%);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Druckbett-Raster (siehe Beispiele/-Referenzen) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.45), transparent 70%);
}

/* Sprunglink für Tastaturnutzung */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-button-text);
  font-weight: var(--font-weight-bold);
}

.skip-link:focus-visible {
  top: var(--space-2);
}

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

/* --- Typografie --- */
h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: var(--line-height-tight);
  letter-spacing: -0.03em;
  font-weight: var(--font-weight-bold);
  text-wrap: balance;
}

h1 {
  font-size: var(--text-display);
  font-weight: var(--font-weight-black);
  letter-spacing: -0.05em;
}

h2 {
  font-size: var(--text-2xl);
}

h3 {
  font-size: var(--text-xl);
  line-height: var(--line-height-snug);
}

p {
  margin: 0;
}

a {
  color: var(--color-primary-soft);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
}

::selection {
  background: var(--color-primary);
  color: var(--color-button-text);
}

/* hidden-Attribut gewinnt immer – auch gegen display: grid/flex von Komponenten */
[hidden] {
  display: none !important;
}

/* Visuell verborgen, aber im Dokumentfluss (z. B. Honeypot-Feld) */
.visually-hidden {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* --- Fokus-Sichtbarkeit --- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --- Reduzierte Bewegung --- */
@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;
  }
}