/* ==========================================================================
   MACK — Basis: Reset, Typografie, Layout-Primitives
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-400);
  line-height: var(--lh-normal);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: var(--lh-tight);
  margin: 0 0 var(--sp-3);
  letter-spacing: -0.01em;
  color: var(--ink);
}
h1 { font-size: var(--fs-900); }
h2 { font-size: var(--fs-800); }
h3 { font-size: var(--fs-700); }
h4 { font-size: var(--fs-600); }

p { margin: 0 0 var(--sp-4); max-width: 62ch; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-text); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:not([class]) { color: var(--accent-text); }
.section--dark a, .hero a { color: var(--accent-tint); }

ul, ol { padding-left: 1.2em; }

small, .fs-sm { font-size: var(--fs-300); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-head);
  font-size: var(--fs-200);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin: 0 0 var(--sp-3);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent-text);
  display: inline-block;
}
.section--dark .eyebrow, .hero .eyebrow { color: var(--accent-tint); }
.section--dark .eyebrow::before, .hero .eyebrow::before { background: var(--accent-tint); }

/* ---- Fokus & Barrierefreiheit ----
   Fokusring nutzt die kontrastsichere -text-Variante (mind. 3:1 gegen helle Flächen).
   Auf dunklen/farbigen Flächen wird auf Weiß umgeschaltet, damit der Ring bei jeder
   Bereichsfarbe (auch Orange) zuverlässig sichtbar bleibt. */
:focus-visible {
  outline: 3px solid var(--accent-text);
  outline-offset: 2px;
}
.section--dark :focus-visible, .hero :focus-visible, .section--accent :focus-visible {
  outline-color: #fff;
}
a:focus-visible, button:focus-visible { outline-offset: 3px; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--sp-4);
  top: -60px;
  background: var(--ink);
  color: #fff;
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--dur) var(--ease);
  font-family: var(--font-head);
  font-weight: 600;
}
.skip-link:focus { top: var(--sp-4); }

/* ---- Layout-Primitives ---- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--sp-9);
}
.section--tight { padding-block: var(--sp-7); }
.section--dark {
  background: var(--ink);
  color: #efeeec;
}
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }
.section--dark p { color: #cfcdc9; }
.section--raised { background: var(--paper-raised); }
.section--accent {
  background: var(--accent);
  color: var(--accent-ink);
}
.section--accent h1, .section--accent h2, .section--accent h3 { color: var(--accent-ink); }
.section--accent p { color: var(--accent-ink); opacity: 0.9; }
.section--accent .eyebrow, .section--accent .eyebrow::before { color: var(--accent-ink); background: var(--accent-ink); }

.section-head {
  max-width: 42rem;
  margin-bottom: var(--sp-7);
}
.section-head--center { margin-inline: auto; text-align: center; }

.grid { display: grid; gap: var(--sp-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5, .grid-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4, .grid-5, .grid-6 { grid-template-columns: 1fr; }
}

.stack { display: flex; flex-direction: column; }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3); }

.visually-hidden-until-scroll { opacity: 1; }

/* Scroll-Reveal (progressive enhancement via main.js) */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 560ms var(--ease), transform 560ms var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}
.no-js [data-reveal] { opacity: 1; transform: none; }