:root {
    --primary: #0f766e;
    --primary-strong: #0d5f58;
    --accent: #14b8a6;
    --ink: #0f172a;
    --body: #334155;
    --muted: #475569;
    --fine: #525f6f;
    --bg: #ffffff;
    --soft: #ecf5f3;
    --border: #d1d5db;
    --radius: 16px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 8px 24px rgba(0,0,0,0.06);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--body);
    line-height: 1.7;
    background: var(--bg);
  }
  .container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

  nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
  }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
  .logo { font-size: 1.35rem; font-weight: 800; color: var(--primary); letter-spacing: -0.02em; }
  .nav-links { display: flex; gap: 28px; align-items: center; }
  .nav-links a { color: var(--body); text-decoration: none; font-size: 0.92rem; font-weight: 500; transition: color 0.2s; }
  .nav-links a:hover { color: var(--primary); }
  .cta-btn {
    background: var(--primary); color: white;
    padding: 10px 20px; border-radius: 999px;
    font-size: 0.92rem; font-weight: 600; text-decoration: none;
    transition: background 0.2s, transform 0.1s;
    display: inline-block;
  }
  .cta-btn:hover { background: var(--primary-strong); transform: translateY(-1px); }
  .cta-btn.outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
  .cta-btn.outline:hover { background: var(--soft); }

  .hero { padding: 88px 0 72px; position: relative; }
  .hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 120px; background: linear-gradient(180deg, var(--soft) 0%, transparent 100%); pointer-events: none; }
  .hero-inner { position: relative; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
  @media (max-width: 860px) { .hero-inner { grid-template-columns: 1fr; gap: 32px; } }
  .hero h1 { font-size: 3rem; font-weight: 800; line-height: 1.12; letter-spacing: -0.03em; margin-bottom: 20px; color: var(--ink); }
  .hero h1 .highlight { color: var(--primary); }
  .hero p.lead { font-size: 1.15rem; color: #1e293b; font-weight: 450; margin-bottom: 32px; max-width: 480px; }
  .hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
  .hero-stats { display: flex; gap: 40px; margin-top: 48px; }
  .hero-stat .value { font-size: 1.75rem; font-weight: 800; color: var(--primary); display: block; }
  .hero-stat .label { font-size: 0.85rem; color: #1e293b; }

  .mockup {
    background: white; border-radius: 32px; box-shadow: 0 4px 24px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.08);
    border: 1px solid var(--border); padding: 20px; max-width: 340px; margin-left: auto;
  }
  .mockup .bar { background: var(--primary); border-radius: 24px; padding: 12px 16px; color: white; font-size: 0.9rem; font-weight: 600; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
  .mockup .bar .dot { width: 8px; height: 8px; background: #86efac; border-radius: 50%; }
  .mockup .bubble { margin-bottom: 8px; padding: 10px 14px; border-radius: 14px; font-size: 0.85rem; max-width: 85%; }
  .mockup .bubble.patient { background: #e2e8f0; margin-left: auto; border-bottom-right-radius: 4px; color: #1e293b; }
  .mockup .bubble.agent { background: #f0fdfa; border: 1px solid #5eead4; border-bottom-left-radius: 4px; }
  .mockup .bubble .time { font-size: 0.7rem; color: #64748b; margin-top: 3px; }

  section { padding: 72px 0; }
  .section-label { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--primary-strong); margin-bottom: 10px; }
  h2 { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 16px; color: var(--ink); }
  .sub { color: var(--body); max-width: 560px; margin-bottom: 40px; }

  .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  @media (max-width: 700px) { .grid-2 { grid-template-columns: 1fr; } }
  .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  @media (max-width: 800px) { .grid-3 { grid-template-columns: 1fr; } }

  .card { background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
  .card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; color: var(--ink); }
  .card p { font-size: 0.95rem; color: var(--body); }
  .card .icon { font-size: 1.75rem; margin-bottom: 12px; }

  .pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
  @media (max-width: 700px) { .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; } }
  .price-card { background: white; border: 2px solid var(--border); border-radius: var(--radius); padding: 28px; position: relative; box-shadow: 0 1px 6px rgba(0,0,0,0.04); }
  .price-card.featured { border-color: var(--primary); box-shadow: var(--shadow); }
  .price-card .tag { position: absolute; top: -12px; left: 24px; background: var(--primary); color: white; font-size: 0.7rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; text-transform: uppercase; letter-spacing: 0.06em; }
  .price-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
  .price-card .price { font-size: 2.1rem; font-weight: 800; color: var(--primary); }
  .price-card .price span { font-size: 0.9rem; font-weight: 500; color: var(--body); }
  .price-card ul { list-style: none; margin-top: 16px; }
  .price-card ul li { padding: 6px 0; font-size: 0.95rem; color: var(--body); border-bottom: 1px solid #f1f5f9; }
  .price-card ul li::before { content: "✓ "; color: var(--primary); font-weight: 700; }
  .price-card .note { font-size: 0.82rem; color: var(--fine); margin-top: 12px; }

  .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
  @media (max-width: 860px) { .timeline { grid-template-columns: 1fr; } }
  .step { text-align: center; background: white; border-radius: var(--radius); padding: 20px 14px; border: 1px solid var(--border); box-shadow: 0 1px 4px rgba(0,0,0,0.05); }
  .step .num { display: inline-flex; width: 34px; height: 34px; background: var(--primary); color: white; border-radius: 50%; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem; margin-bottom: 10px; }
  .step h4 { font-size: 0.95rem; margin-bottom: 6px; color: var(--ink); }
  .step p { font-size: 0.82rem; color: var(--fine); }

  .vertical-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
  .vertical { border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; background: white; box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
  .vertical .icon { font-size: 1.5rem; margin-bottom: 8px; }
  .vertical h4 { font-size: 0.98rem; margin-bottom: 4px; color: var(--ink); }
  .vertical p { font-size: 0.85rem; color: var(--body); }

  .theme-showcase { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; margin: 20px 0; }
  .theme-card { border: 1px solid var(--border); border-radius: 12px; padding: 16px; text-align: center; background: white; box-shadow: 0 1px 3px rgba(0,0,0,0.04); }
  .theme-card .theme-swatch { height: 80px; border-radius: 8px; margin-bottom: 10px; }
  .theme-card h4 { font-size: 0.9rem; margin-bottom: 4px; color: var(--ink); }
  .theme-card p { font-size: 0.8rem; color: var(--fine); }

  .faq details { border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; margin-bottom: 10px; background: white; box-shadow: 0 1px 3px rgba(0,0,0,0.03); }
  .faq summary { font-weight: 600; cursor: pointer; font-size: 0.98rem; color: var(--ink); padding: 2px 0; }
  .faq details p { margin-top: 10px; color: var(--body); font-size: 0.92rem; }

  .cta-band { background: var(--primary-strong); color: white; text-align: center; padding: 72px 24px; border-radius: 24px; }
  .cta-band h2 { color: white; }
  .cta-band p { opacity: 0.9; margin-bottom: 28px; }
  .cta-band .cta-btn { background: white; color: var(--primary); }
  .cta-band .cta-btn:hover { background: var(--soft); }

  footer { border-top: 1px solid var(--border); padding: 36px 0 60px; color: var(--body); font-size: 0.85rem; }
  .footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
  .footer-inner a { color: var(--body); text-decoration: none; margin-left: 18px; }
  .footer-inner a:hover { color: var(--primary); }

  .contact-form { max-width: 520px; display: grid; gap: 14px; }
  .contact-form input, .contact-form textarea, .contact-form select {
    width: 100%; padding: 13px 16px; border: 1px solid var(--border); border-radius: 12px; font-size: 0.95rem; font-family: inherit;
    transition: border 0.2s; background: white;
  }
  .contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { outline: none; border-color: var(--primary); }
  .contact-form textarea { min-height: 110px; resize: vertical; }
  .contact-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  @media (max-width: 600px) { .contact-form .row { grid-template-columns: 1fr; } }

  /* Narrow screens: keep the navigation usable without forcing a tiny desktop layout */
  @media (max-width: 720px) {
    .nav-inner { height: auto; padding: 12px 0 8px; gap: 8px; flex-wrap: wrap; }
    .nav-links { flex: 0 0 100%; width: 100%; min-width: 0; order: 2; gap: 18px; flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding: 3px 2px 6px; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
    .nav-links::-webkit-scrollbar { display: none; }
    .nav-links a { flex: 0 0 auto; white-space: nowrap; }
    .logo { margin-right: auto; }
    .hero-stats { flex-wrap: wrap; gap: 24px; }
  }

  /* Phones (≤480px) */
  @media (max-width: 480px) {
    .container { padding: 0 16px; }
    nav { height: auto; }
    .nav-links a { font-size: 0.8rem; }
    .nav-links .cta-btn { padding: 6px 14px; font-size: 0.8rem; }
    .logo { font-size: 1.1rem; }
    .hero { padding: 48px 0 40px; }
    .hero-inner { gap: 24px; }
    .hero h1 { font-size: 1.6rem; }
    .hero p.lead { font-size: 0.95rem; max-width: none; }
    .hero-ctas { flex-direction: column; gap: 10px; }
    .hero-ctas .cta-btn { text-align: center; }
    .hero-stats { flex-direction: column; gap: 16px; margin-top: 32px; }
    .mockup { max-width: 100%; margin: 0; }
    section { padding: 40px 0; }
    h2 { font-size: 1.45rem; }
    .section-label { font-size: 0.7rem; }
    .grid-2 { grid-template-columns: 1fr; }
    .card { padding: 20px; }
    .card h3 { font-size: 1rem; }
    .price-card { padding: 20px; }
    .price-card .price { font-size: 1.5rem; }
    .timeline { gap: 8px; }
    .step { padding: 14px 10px; }
    .step h4 { font-size: 0.85rem; }
    .cta-band { padding: 36px 16px; border-radius: 12px; }
    .cta-band h2 { font-size: 1.3rem; }
    .contact-form { max-width: 100%; }
    .contact-form input, .contact-form textarea, .contact-form select { font-size: 16px; }
    .footer-inner { flex-direction: column; text-align: center; gap: 8px; }
    .footer-inner a { margin: 0 8px; }
    .theme-showcase { grid-template-columns: repeat(2, 1fr); }
    .vertical-grid { grid-template-columns: repeat(2, 1fr); }
    .faq details { padding: 14px 16px; }
    .faq summary { font-size: 0.92rem; }
  }