/* Basis: klare, ruhige Typo; gute Lesbarkeit; dunkler & heller Modus */
:root {
  --bg: #ffffff;
  --fg: #101010;
  --muted: #6b7280;        /* neutral-500 */
  --card-bg: #f8fafc;      /* slate-50 */
  --card-border: #e5e7eb;  /* gray-200 */
  --brand: #0ea5e9;        /* sky-500 */
  --brand-ink: #0b4a66;
  --radius: 14px;
  --shadow: 0 6px 18px rgba(0,0,0,.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0e12;
    --fg: #e5e7eb;
    --muted: #94a3b8;       /* slate-400 */
    --card-bg: #0f141a;
    --card-border: #1f2937; /* gray-800 */
    --brand: #38bdf8;       /* sky-400 */
    --brand-ink: #061f2b;
    --shadow: 0 10px 24px rgba(0,0,0,.35);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--card-border);
  background: linear-gradient(180deg, rgba(2,6,23,0.04), transparent);
}
/* Header: zentrierte Variante */
.header-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-block: 1rem 1.25rem;
}

.logo-centered {
  display: block;
  width: 300px;
  height: auto;
  margin-bottom: 0.75rem;
}

.site-header h1 {
  margin: 0.25rem 0 0.25rem;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: 0.3px;
}

.subtitle {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.site-header h1 {
  margin: 0 0 .25rem 0;
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  letter-spacing: .2px;
}
.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: .95rem;
}

/* Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  padding-block: 1.25rem 2rem;
}

/* Card */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  display: grid;
  align-content: start;
  gap: .5rem;
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}

.card:hover,
.card:focus-within {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--brand) 45%, var(--card-border));
  box-shadow: 0 12px 28px rgba(0,0,0,.12);
}

.name {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.2;
}

.code {
  margin: 0;
  color: var(--muted);
  font-size: .95rem;
}
.code span {
  opacity: .9;
  margin-right: .25rem;
}

/* Button */
.btn {
  margin-top: .25rem;
  display: inline-block;
  text-align: center;
  text-decoration: none;
  font-weight: 600;
  border-radius: 10px;
  padding: .55rem .8rem;
  background: var(--brand);
  color: #fff;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,.12);
  transition: filter .12s ease, transform .04s ease;
}
.btn:focus {
  outline: 3px solid color-mix(in oklab, var(--brand) 35%, #ffffff);
  outline-offset: 2px;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(1px); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--card-border);
  color: var(--muted);
  font-size: .9rem;
  padding-bottom: 1rem;
}

/* Bewegungen respektieren */
@media (prefers-reduced-motion: reduce) {
  .card, .btn { transition: none !important; }
}