/* Grundgestaltung bis zur Festlegung der CI (hg-spec/branding, Frage F17): Schwarz/Weiß, neutrale Grautöne */
:root {
  --ink: #111111;
  --paper: #ffffff;
  --muted: #6b6b6b;
  --line: #e4e4e2;
  --panel: #f6f6f4;
  --font: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: var(--font); color: var(--ink); background: var(--paper); min-height: 100vh;
       display: flex; flex-direction: column; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.muted { color: var(--muted); }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
          padding: 1rem clamp(1rem, 4vw, 3rem); border-bottom: 1px solid var(--line); }
.topbar.dark { background: var(--ink); color: var(--paper); border-bottom: none; }
.topbar.dark .muted { color: #b5b5b5; }
.brand img { display: block; height: 48px; width: auto; }
.topbar.dark .brand img { height: 40px; }
.topbar nav { display: flex; gap: 1.25rem; align-items: center; font-size: .95rem; }

.lang { display: flex; gap: .25rem; }
.lang button { font: inherit; font-size: .85rem; letter-spacing: .06em; background: none; border: 1px solid var(--line);
               padding: .35rem .6rem; cursor: pointer; color: var(--muted); }
.lang button[aria-current="true"] { color: var(--ink); border-color: var(--ink); }

.hero { flex: 1; padding: clamp(3rem, 10vw, 8rem) clamp(1rem, 4vw, 3rem); max-width: 60rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .8rem; color: var(--muted); margin: 0 0 1rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.1; font-weight: 600; margin: 0 0 1.25rem; letter-spacing: -.01em; }
.lead { font-size: clamp(1.05rem, 2vw, 1.3rem); line-height: 1.55; color: #333; max-width: 42rem; margin: 0; }

.footer { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
          padding: 1.25rem clamp(1rem, 4vw, 3rem); border-top: 1px solid var(--line); font-size: .85rem; }