/* =========================================================
   base.css – gemeinsame Basis für alle Features
   Änderungen hier nur über eigenen Branch (betrifft alle!)
   ========================================================= */

/* ---------- Design-Tokens laut tri-hub Design-DNA ---------- */
:root {
  /* Hintergrund: tiefes Dunkelblau / Schwarz */
  --th-bg:            #0d0d1a;
  --th-bg-elevated:   #1a1a2e;

  /* Akzent: Teal / Emerald Green – CTAs, Icons, Highlights */
  --th-accent:        #10b981;

  /* Text: Weiß / Hellgrau */
  --th-text:          #ffffff;
  --th-text-soft:     #f8fafc;
  --th-text-muted:    #94a3b8;

  /* Typografie: Serif Display + Sans-Serif Body */
  --th-font-display:  "Playfair Display", Georgia, serif;
  --th-font-body:     "Inter", system-ui, sans-serif;

  /* Lesbarkeit Zielgruppe 50+ (Definition of Done) */
  --th-font-size-body: 1.125rem;   /* 18px */
  --th-line-height:    1.65;

  /* Abstände / Radien für alle Sektionen */
  --th-section-space:  5rem;
  --th-radius:         1.4rem;
}

/* ---------- Grundlayout ---------- */
body {
  background: var(--th-bg);
  color: var(--th-text-soft);
  font-family: var(--th-font-body);
  font-size: var(--th-font-size-body);
  line-height: var(--th-line-height);
}

h1, h2, h3 {
  font-family: var(--th-font-display);
  color: var(--th-text);
  letter-spacing: -0.01em;
}

main > section {
  padding-block: var(--th-section-space);
}

/* Anker nicht unter dem Header verstecken */
section[id] {
  scroll-margin-top: 5rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgb(13 13 26 / 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.site-logo {
  font-family: var(--th-font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--th-text);
}

/* ---------- Barrierefreiheit ---------- */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--th-accent);
  outline-offset: 4px;
  border-radius: 0.5rem;
}

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