/* ===== Layout: Header, Hauptbereich, Inhalte, Footer ===== */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px clamp(16px, 4vw, 32px);
  padding-top: max(14px, env(safe-area-inset-top));
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; font-size: 1.15rem; }
.brand img { display: block; }
.header-right { display: flex; align-items: center; gap: 8px; }
.nav { display: flex; gap: 2px; }
.lang-select {
  background: var(--surface); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 10px; font-size: 0.9rem; font-weight: 600; cursor: pointer;
}
.lang-select:hover { border-color: #454c5b; }
.lang-select option { background: var(--surface); color: var(--text); }

/* Startseite mit Sprachauswahl */
.lang-landing { max-width: 640px; margin: 0 auto; padding: 14vh 20px 40px; text-align: center; }
.lang-landing h1 { margin-bottom: 8px; }
.lang-landing .lead { margin-bottom: 28px; }
.lang-list { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.lang-list a { display: block; padding: 14px 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--text); text-decoration: none; font-weight: 700; transition: border-color 0.15s, background 0.15s; }
.lang-list a:hover { border-color: var(--accent); background: var(--surface-2); }
.nav a { color: var(--muted); text-decoration: none; font-weight: 600; font-size: 0.95rem; padding: 8px 12px; border-radius: 8px; transition: color 0.15s, background 0.15s; }
.nav a:hover { color: var(--text); background: var(--surface); }

main { max-width: 1200px; margin: 0 auto; padding: 28px clamp(16px, 4vw, 32px) 40px; }

.app-head { text-align: center; margin: 0 0 24px; }
h1 { font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.1; font-weight: 800; letter-spacing: -0.02em; }
.lead { color: var(--muted); font-size: clamp(1rem, 2.2vw, 1.1rem); margin-top: 8px; }

.stage { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 32px; align-items: start; }
.wheel-col { display: flex; flex-direction: column; align-items: center; gap: 16px; min-width: 0; }

/* Inhaltsbereiche (SEO-Text) */
.content { margin-top: 48px; padding: clamp(18px, 4vw, 32px); background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.content h2 { font-size: clamp(1.3rem, 3vw, 1.7rem); margin-bottom: 14px; }
.content p { color: var(--muted); }
.content p + p { margin-top: 10px; }

.steps { list-style: none; counter-reset: step; display: grid; gap: 12px; margin-bottom: 16px; padding: 0; }
.steps li { counter-increment: step; position: relative; padding-left: 44px; color: var(--muted); }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 8px; font-weight: 800; font-size: 0.95rem;
  background: var(--accent); color: var(--accent-ink);
}
.steps strong { color: var(--text); }

.idea-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.idea-grid article { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.idea-grid h3 { font-size: 1rem; margin-bottom: 6px; }

details { border: 1px solid var(--line); border-radius: var(--radius); padding: 2px 16px; background: var(--surface-2); }
details + details { margin-top: 8px; }
summary { cursor: pointer; font-weight: 600; padding: 12px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-size: 1.3rem; line-height: 1; color: var(--accent); transition: transform 0.2s; }
details[open] summary::after { transform: rotate(45deg); }
details p { padding-bottom: 14px; }

.site-footer { text-align: center; color: var(--muted); font-size: 0.9rem; padding: 28px 16px calc(28px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); }

@media (max-width: 980px) {
  .stage { grid-template-columns: 1fr; gap: 24px; }
  .panel { max-width: 640px; width: 100%; margin: 0 auto; }
}
@media (max-width: 640px) {
  .nav { display: none; }
}
@media (max-width: 520px) {
  main { padding-top: 20px; }
  .app-head { margin-bottom: 16px; }
  .content { margin-top: 32px; }
}