/* === CSS extrahiert aus app-installieren.html (extrahiert 2026-04-26) === */
  @import url('/shared/fonts/inter.css');
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #0f1117; color: #e0e0e0;
    min-height: 100vh; -webkit-font-smoothing: antialiased;
  }

  nav {
    position: sticky; top: 0; z-index: 200;
    background: rgba(15,17,23,0.9);
    backdrop-filter: blur(32px) saturate(160%);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 0 20px; height: 52px;
    display: flex; align-items: center; gap: 10px;
  }
  .nav-logo { height: 24px; width: auto; filter: brightness(2.2) contrast(0.85); }
  .nav-brand { font-size: 15px; font-weight: 700; color: #f5f5f7; letter-spacing: -0.3px; }
  .nav-sep { width: 1px; height: 16px; background: rgba(255,255,255,0.12); margin: 0 2px; }
  .nav-title { font-size: 13px; color: #04b3d6; font-weight: 500; flex: 1; }
  .nav-link { padding: 6px 12px; border-radius: 8px; font-size: 13px; font-weight: 500; color: #a0a0a8; text-decoration: none; white-space: nowrap; }
  .nav-link:hover { background: rgba(255,255,255,0.08); color: #f5f5f7; }

  .main { max-width: 700px; margin: 0 auto; padding: 32px 20px 80px; }
  h1 { font-size: 26px; font-weight: 700; color: #f5f5f7; margin-bottom: 8px; }
  .subtitle { font-size: 14px; color: #888; margin-bottom: 32px; line-height: 1.5; }

  .app-preview {
    display: flex; align-items: center; gap: 16px;
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px; padding: 20px; margin-bottom: 32px;
  }
  .app-preview img { width: 64px; height: 64px; border-radius: 14px; }
  .app-preview-info h2 { font-size: 16px; font-weight: 600; color: #f5f5f7; }
  .app-preview-info p { font-size: 12px; color: #888; margin-top: 2px; }

  .platform-tabs {
    display: flex; gap: 4px; margin-bottom: 24px;
    background: rgba(255,255,255,0.04); border-radius: 10px; padding: 4px;
  }
  .platform-tab {
    flex: 1; padding: 10px; border-radius: 8px; border: none;
    background: transparent; color: #888; font-size: 14px; font-weight: 600;
    cursor: pointer; font-family: inherit; text-align: center;
    transition: all 0.2s;
  }
  .platform-tab.active { background: rgba(4,179,214,0.15); color: #04b3d6; }

  .platform-content { display: none; }
  .platform-content.active { display: block; }

  .step {
    display: flex; gap: 16px; margin-bottom: 24px;
    padding: 16px; border-radius: 12px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
  }
  .step-num {
    width: 32px; height: 32px; border-radius: 50%;
    background: rgba(4,179,214,0.15); color: #04b3d6;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 700; flex-shrink: 0;
  }
  .step-body { flex: 1; }
  .step-title { font-size: 14px; font-weight: 600; color: #f5f5f7; margin-bottom: 4px; }
  .step-desc { font-size: 13px; color: #aaa; line-height: 1.5; }
  .step-icon { font-size: 18px; margin: 0 2px; vertical-align: middle; }
  .key { display: inline-block; padding: 1px 6px; border-radius: 4px; background: rgba(255,255,255,0.08); font-size: 12px; color: #ccc; font-weight: 500; }

  .benefits {
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
    margin-top: 32px;
  }
  .benefit {
    padding: 14px 16px; border-radius: 10px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
  }
  .benefit-icon { font-size: 20px; margin-bottom: 6px; }
  .benefit-text { font-size: 12px; color: #aaa; line-height: 1.4; }
  .benefit-title { font-size: 13px; font-weight: 600; color: #f5f5f7; margin-bottom: 2px; }

  .hint {
    margin-top: 24px; padding: 14px 16px; border-radius: 10px;
    background: rgba(4,179,214,0.06); border: 1px solid rgba(4,179,214,0.15);
    font-size: 12px; color: #888; line-height: 1.5;
  }
  .hint strong { color: #04b3d6; }

  @media (max-width: 600px) {
    .main { padding: 20px 14px 60px; }
    h1 { font-size: 22px; }
    .benefits { grid-template-columns: 1fr; }
    .nav-title { display: none; }
    .nav-link { padding: 5px 8px; font-size: 11px; }
  }