:root {
    --surface: #ffffff; --plane: #f6f5f2; --card: #ffffff;
    --ink: #14140f; --ink-2: #4a493f; --ink-muted: #85836f;
    --border: rgba(20,20,15,0.11); --grid: #e6e4da;
    --brand: #0d3d34; --brand-2: #14524a; --accent: #1a8f6b;
    --paper: #f6f5f2;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { font-family: -apple-system, "Segoe UI", Arial, sans-serif; margin: 0; color: var(--ink); line-height: 1.6; background: var(--surface); }
  a { color: inherit; }
  .icon-svg { width: 22px; height: 22px; }

  nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); padding: 16px 32px; display: flex; align-items: center; justify-content: space-between; }
  .wordmark { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
  .wordmark .mark { width: 34px; height: 34px; background: var(--brand); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
  @media (max-width: 480px) { .wordmark .wordmark-text { display: none; } footer .wordmark .wordmark-text { display: inline; } }
  .wordmark .suffix { color: var(--ink-muted); font-weight: 500; }
  nav .nav-links { display: flex; align-items: center; gap: 28px; }
  nav .nav-links a.link { font-size: 14px; color: var(--ink-2); text-decoration: none; }
  nav .nav-links a.link:hover { color: var(--ink); }
  nav .nav-cta { background: var(--ink); color: white; padding: 9px 18px; border-radius: 6px; text-decoration: none; font-weight: 600; font-size: 14px; }
  nav .nav-cta:hover { background: var(--brand); }
  .nav-toggle { display: none; align-items: center; justify-content: center; width: 36px; height: 36px; background: none; border: 1px solid var(--border); border-radius: 7px; color: var(--ink); cursor: pointer; flex-shrink: 0; }
  nav .nav-profile { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: 14px; padding: 5px 14px 5px 5px; border-radius: 999px; border: 1px solid var(--border); transition: border-color 0.15s; }
  nav .nav-profile:hover { border-color: var(--ink-muted); }
  nav .nav-profile-avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--brand); color: white; font-size: 11.5px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; overflow: hidden; }
  nav .nav-profile-avatar img { width: 100%; height: 100%; object-fit: cover; }

  .hero { padding: 88px 32px 80px; }
  .hero-inner { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; }
  .hero-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--border); padding: 5px 12px; border-radius: 4px; margin-bottom: 22px; }
  .hero h1 { font-size: 44px; margin: 0 0 20px; font-weight: 700; letter-spacing: -0.025em; line-height: 1.12; color: var(--ink); }
  .hero p.lead { font-size: 17px; color: var(--ink-2); max-width: 480px; margin: 0 0 30px; }
  .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
  .cta-btn { display: inline-block; background: var(--ink); color: white; padding: 13px 26px; border-radius: 6px; text-decoration: none; font-weight: 600; font-size: 15px; transition: background 0.15s; }
  .cta-btn:hover { background: var(--brand); }
  .cta-btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--border); }
  .cta-btn.ghost:hover { border-color: var(--ink); background: transparent; }

  .hero-panel { background: var(--brand); border-radius: 12px; padding: 28px; color: white; }
  .hero-panel .chatline { background: rgba(255,255,255,0.08); border-radius: 8px; padding: 12px 14px; font-size: 13.5px; margin-bottom: 10px; }
  .hero-panel .chatline.out { background: rgba(255,255,255,0.97); color: var(--ink); margin-left: 24px; }
  .hero-panel .chatline .who { display: block; font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.6; margin-bottom: 4px; }

  section { max-width: 1080px; margin: 0 auto; padding: 76px 32px; }
  .section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 44px; flex-wrap: wrap; gap: 12px; }
  .eyebrow { color: var(--accent); font-weight: 700; font-size: 12px; letter-spacing: 0.07em; text-transform: uppercase; }
  h2 { font-size: 28px; margin: 4px 0 0; color: var(--ink); letter-spacing: -0.015em; font-weight: 700; }

  .feature-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
  .feature-item { background: var(--card); padding: 30px; }
  .feature-item .icon-wrap { width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--brand); margin-bottom: 18px; }
  .feature-item h3 { color: var(--ink); margin: 0 0 10px; font-size: 16.5px; font-weight: 700; }
  .feature-item p { color: var(--ink-2); margin: 0; font-size: 14px; }
  .feature-item ul { margin: 12px 0 0; padding-left: 18px; color: var(--ink-2); font-size: 13.5px; }
  .feature-item li { margin-bottom: 5px; }

  .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .step { border-top: 2px solid var(--ink); padding-top: 18px; }
  .step-num { font-size: 12px; font-weight: 700; color: var(--ink-muted); letter-spacing: 0.05em; }
  .step b { display: block; margin: 8px 0 6px; font-size: 16px; }
  .step p { color: var(--ink-2); font-size: 13.5px; margin: 0; }

  .demo-box { background: var(--paper); border: 1px solid var(--border); border-radius: 12px; padding: 44px; }
  .demo-box p { color: var(--ink-2); margin: 0; }
  .demo-box code { background: white; border: 1px solid var(--border); padding: 2px 6px; border-radius: 4px; font-size: 13px; }

  .cta-band { background: var(--brand); color: white; text-align: center; padding: 64px 32px; }
  .cta-band h2 { color: white; }
  .cta-band .eyebrow { color: rgba(255,255,255,0.6); }

  footer { border-top: 1px solid var(--border); padding: 56px 32px 28px; }
  .footer-inner { max-width: 1080px; margin: 0 auto; }
  .footer-cols { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 32px; margin-bottom: 40px; }
  .footer-cols h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-muted); margin: 0 0 14px; }
  .footer-cols a { display: block; color: var(--ink-2); text-decoration: none; font-size: 14px; margin-bottom: 10px; }
  .footer-cols a:hover { color: var(--ink); }
  .footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; border-top: 1px solid var(--border); font-size: 13px; color: var(--ink-muted); flex-wrap: wrap; gap: 10px; }
  .lang-select { border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; font-size: 12.5px; color: var(--ink-2); background: var(--surface); font-family: inherit; }

  .cookie-banner { position: fixed; left: 20px; right: 20px; bottom: 20px; max-width: 460px; margin: 0 auto; background: var(--ink); color: white; border-radius: 12px; padding: 18px 20px; box-shadow: 0 12px 32px rgba(0,0,0,0.22); z-index: 1000000; display: none; }
  .cookie-banner.show { display: block; }
  .cookie-banner p { margin: 0 0 14px; font-size: 13.5px; line-height: 1.55; color: rgba(255,255,255,0.85); }
  .cookie-banner a { color: white; text-decoration: underline; }
  .cookie-banner .cookie-actions { display: flex; gap: 10px; }
  .cookie-banner button { flex: 1; padding: 9px 14px; border-radius: 6px; font-size: 13px; font-weight: 600; cursor: pointer; border: 1px solid rgba(255,255,255,0.25); }
  .cookie-banner .accept { background: var(--accent); color: white; border-color: var(--accent); }
  .cookie-banner .decline { background: transparent; color: white; }

  @media (max-width: 760px) {
    .hero-inner { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .footer-cols { grid-template-columns: 1fr 1fr; }

    .nav-toggle { display: flex; }

    nav .nav-links {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      flex-direction: column;
      align-items: flex-start;
      gap: 16px;
      background: var(--surface);
      border-bottom: 1px solid var(--border);
      padding: 20px 32px;
    }

    nav .nav-links.open {
      display: flex;
    }

    nav .nav-links .link {
      display: block;
      font-size: 15px;
    }

    nav .nav-cta,
    nav .nav-profile {
      width: 100%;
      justify-content: center;
    }
  }

  .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s ease, transform 0.7s ease; }
  .reveal.in-view { opacity: 1; transform: translateY(0); }
  .feature-item.reveal:nth-child(1) { transition-delay: 0s; }
  .feature-item.reveal:nth-child(2) { transition-delay: 0.12s; }
  .feature-item.reveal:nth-child(3) { transition-delay: 0.24s; }
  .step.reveal:nth-child(1) { transition-delay: 0s; }
  .step.reveal:nth-child(2) { transition-delay: 0.12s; }
  .step.reveal:nth-child(3) { transition-delay: 0.24s; }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
  }

  /* ---- About / Contact / FAQ pages ---- */

  .prose { max-width: 720px; }
  .prose p { color: var(--ink-2); font-size: 15.5px; margin: 0 0 18px; }
  .prose h3 { font-size: 19px; margin: 36px 0 10px; letter-spacing: -0.01em; }

  .contact-form { max-width: 520px; }
  .contact-form .field { margin-bottom: 18px; }
  .contact-form label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
  .contact-form input,
  .contact-form textarea { width: 100%; border: 1px solid var(--border); border-radius: 7px; padding: 11px 13px; font-size: 14.5px; font-family: inherit; color: var(--ink); background: var(--surface); }
  .contact-form textarea { resize: vertical; min-height: 120px; }
  .contact-form input:focus,
  .contact-form textarea:focus { outline: none; border-color: var(--accent); }
  .contact-form button[type="submit"] { border: none; cursor: pointer; }
  .form-banner { border-radius: 8px; padding: 13px 15px; font-size: 13.5px; margin-bottom: 20px; }
  .form-banner.success { background: rgba(26,143,107,0.1); color: var(--accent); border: 1px solid rgba(26,143,107,0.25); }
  .form-banner.error { background: rgba(184,69,47,0.1); color: #b8452f; border: 1px solid rgba(184,69,47,0.25); }
  .contact-direct { margin-top: 26px; font-size: 13.5px; color: var(--ink-muted); }
  .contact-direct a { color: var(--brand); font-weight: 600; text-decoration: none; }
  .contact-direct a:hover { text-decoration: underline; }

  .faq-list { max-width: 760px; }
  .faq-item { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; background: var(--card); }
  .faq-item summary { cursor: pointer; list-style: none; padding: 17px 20px; font-size: 15px; font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary::after { content: "+"; flex-shrink: 0; font-size: 19px; font-weight: 400; color: var(--ink-muted); }
  .faq-item[open] summary::after { content: "\2212"; }
  .faq-item-body { padding: 0 20px 18px; font-size: 14.5px; line-height: 1.65; color: var(--ink-2); }
  .faq-item-body code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; background: var(--grid); border-radius: 4px; padding: 1px 5px; }

  /* ---- Public Help & Support page ---- */

  .support-search { width: 100%; max-width: 620px; border: 1px solid var(--border); border-radius: 8px; padding: 13px 15px; font-size: 15px; font-family: inherit; color: var(--ink); background: var(--surface); margin-bottom: 22px; }
  .support-search:focus { outline: none; border-color: var(--accent); }
  .support-contact-bar { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; background: var(--paper); border: 1px solid var(--border); border-radius: 10px; padding: 16px 20px; margin-bottom: 30px; max-width: 760px; }
  .support-contact-bar p { margin: 0; font-size: 13.5px; color: var(--ink-2); }
  .support-contact-bar a.cta-btn { flex-shrink: 0; white-space: nowrap; padding: 10px 18px; font-size: 13.5px; }
  .support-category { max-width: 760px; margin-bottom: 30px; }
  .support-category-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-muted); margin: 0 0 12px; }
  .support-no-results { max-width: 760px; padding: 30px 0; font-size: 14px; color: var(--ink-muted); }