/* Rechtsseiten franke-lab.de — bewusst ohne externe Schriften.
   (exercises.css lädt Inter von Google; das gehört auf Rechtsseiten nicht hin.) */
*, *::before, *::after { box-sizing: border-box; }
:root {
  --bg: #ffffff; --fg: #0a0a0a; --border: #e2e8f0; --secondary: #f8fafc;
  --muted: #64748b; --slate: #334155; --radius: 0.5rem;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  background: var(--bg); color: var(--fg);
  margin: 0; padding: 2.5rem 1.5rem 4rem;
  line-height: 1.7; font-size: 16px;
}
main { max-width: 820px; margin: 0 auto; }
h1 { font-size: 1.6rem; color: var(--slate); margin: 0 0 0.3rem; font-weight: 700; }
h2 { font-size: 1.05rem; color: var(--slate); margin: 2.2rem 0 0.6rem; font-weight: 600; }
h3 { font-size: 0.95rem; color: var(--slate); margin: 1.4rem 0 0.4rem; font-weight: 600; }
p, li { color: #1e293b; }
ul { padding-left: 1.2rem; }
li { margin-bottom: 0.3rem; }
a { color: var(--slate); text-decoration: underline; text-underline-offset: 2px; text-decoration-color: #cbd5e1; }
a:hover { text-decoration-color: var(--slate); }
.lead { color: var(--muted); margin: 0 0 2rem; font-size: 0.95rem; }
.box { background: var(--secondary); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.9rem 1.1rem; margin: 1rem 0; }
.addr { font-style: normal; line-height: 1.8; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
             border-bottom: 1px solid var(--border); padding-bottom: 1.2rem; margin-bottom: 2rem; }
header.top img { height: 34px; width: auto; }
nav.pages { font-size: 0.85rem; display: flex; gap: 1rem; }
footer.legal { border-top: 1px solid var(--border); margin-top: 3rem; padding-top: 1.2rem;
               font-size: 0.8rem; color: var(--muted); display: flex; gap: 1rem; flex-wrap: wrap; }
table.dl { width: 100%; border-collapse: collapse; font-size: 0.92rem; margin: 0.8rem 0; }
table.dl th, table.dl td { text-align: left; vertical-align: top; padding: 0.45rem 0.8rem 0.45rem 0; border-bottom: 1px solid var(--border); }
table.dl th { color: var(--slate); font-weight: 600; width: 34%; }
.note { font-size: 0.85rem; color: var(--muted); }
@media (max-width: 520px) { header.top { flex-direction: column; align-items: flex-start; } }