/* base.css — Reset, Grundtypografie, wiederkehrende Bausteine.
 * Nimmt ausschliesslich Werte aus tokens.css. Keine Hex-Werte hier.
 */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Anker landen unter dem Kopf, nicht darunter verdeckt */
  scroll-padding-top: 5.5rem;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -.018em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: var(--t-4xl); letter-spacing: -.028em; }
h2 { font-size: var(--t-3xl); letter-spacing: -.022em; }
h3 { font-size: var(--t-xl); }
h4 { font-size: var(--t-lg); }

p { margin: 0; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .2em; }

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection { background: var(--accent-dim); color: var(--ink); }

/* ---------- Layout-Primitive ---------- */

.wrap {
  width: 100%;
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: var(--page-pad);
}

.stack { display: flex; flex-direction: column; }
.stack > * { margin: 0; }
.stack-2 { gap: var(--s-2); }
.stack-3 { gap: var(--s-3); }
.stack-4 { gap: var(--s-4); }
.stack-5 { gap: var(--s-5); }
.stack-6 { gap: var(--s-6); }

.measure { max-width: var(--measure); }

/* Vollbreite ohne seitliches Scrollen (Tabellen, Reihen) */
.scroller { overflow-x: auto; overscroll-behavior-x: contain; }

/* ---------- Wiederkehrende Textrollen ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}

.lead {
  font-family: var(--font-display);
  font-size: var(--t-lg);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 54ch;
}

.muted { color: var(--ink-soft); }
.faint { color: var(--ink-faint); }
.num   { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- Knoepfe: genau zwei Sorten ---------- */

.btn {
  --btn-h: 3.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  height: var(--btn-h);
  padding-inline: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--dur-fast) var(--ease-soft),
              background   var(--dur-fast) var(--ease-soft),
              transform    var(--dur-fast) var(--ease-out);
}
.btn:hover { border-color: var(--accent); background: var(--accent-haze); }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.btn-primary:hover {
  background: var(--accent);
  filter: brightness(1.08);
  border-color: var(--accent);
}

.btn-sm { --btn-h: 2.5rem; padding-inline: 1.1rem; font-size: var(--t-xs); }

.btn-store {
  gap: var(--s-3);
  padding-inline: 1.35rem 1.6rem;
}
.btn-store svg { width: 1.25rem; height: 1.25rem; flex: none; }
.btn-store span { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.15; }
.btn-store small {
  font-size: .62rem; font-weight: 400; letter-spacing: .08em;
  text-transform: uppercase; opacity: .72;
}

/* ---------- Karte ---------- */

.card {
  background: var(--raised);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: var(--s-5);
  box-shadow: var(--shadow-sm), var(--shadow-md);
}

/* ---------- Auftauchen beim Scrollen ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.reveal.is-in { opacity: 1; transform: none; }

/* Gestaffelt innerhalb einer Gruppe */
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .40s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .reveal[data-delay] { transition-delay: 0s; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ---------- Nur fuer Screenreader ---------- */

.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(--s-4); top: var(--s-4);
  z-index: 200; transform: translateY(-200%);
  background: var(--accent); color: var(--on-accent);
  padding: var(--s-3) var(--s-4); border-radius: var(--radius-sm);
  font-size: var(--t-sm); font-weight: 600; text-decoration: none;
}
.skip-link:focus { transform: none; }

/* Zweitrangige Aktion neben einem Knopf. BEWUSST kein Knopf: zwei gleich
   starke Knoepfe nebeneinander kosten eine Entscheidung und damit Downloads. */
.link-quiet {
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  font-size: var(--t-sm);
  font-weight: 500;
  text-decoration: none;
  padding-block: .5rem;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease-soft), border-color var(--dur-fast) var(--ease-soft);
}
.link-quiet:hover { color: var(--ink); border-bottom-color: var(--accent); }