:root {
  --deep: #06353a;
  --ink: #12241f;
  --muted: #4a6460;
  --teal: #0d7377;
  --teal-dark: #0a5c5f;
  --emerald: #12b886;
  --mint: #e8f7f1;
  --paper: #f7fbf9;
  --card: #ffffff;
  --line: #d5e6e0;
  --warn: #8a5a12;
  --radius: 18px;
  --shadow: 0 18px 40px rgba(6, 53, 58, 0.1);
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", sans-serif;
  line-height: 1.55;
  font-size: 17px;
}

img { max-width: 100%; height: auto; }
a { color: var(--teal-dark); }
a:hover { color: var(--teal); }

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 251, 249, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap,
.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand img { width: 36px; height: 36px; }
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
}
.nav a { text-decoration: none; color: var(--muted); font-size: 0.95rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--teal);
  color: #fff;
}
.btn-primary:hover { background: var(--teal-dark); color: #fff; }
.btn-ghost {
  background: #fff;
  color: var(--deep);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal-dark); }
.btn-lg { min-height: 52px; padding: 0 22px; font-size: 1.05rem; }

.hero {
  padding: 72px 0 36px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.kicker {
  color: var(--teal-dark);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 10px 0 16px;
  font-size: clamp(2.1rem, 4.4vw, 3.35rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}
.lede { font-size: 1.15rem; color: var(--muted); max-width: 36rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 18px; }
.fine { color: var(--muted); font-size: 0.92rem; }

.app-shot {
  background: linear-gradient(180deg, #0a4d56, #0fb37a);
  border-radius: 28px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.app-window {
  background: #f3f7f5;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.22);
}
.window-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: #e4eeea;
  color: var(--muted);
  font-size: 0.78rem;
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: #c9d6d1; }
.dot.r { background: #ff6b6b; }
.dot.y { background: #ffd43b; }
.dot.g { background: #69db7c; }
.window-body { padding: 18px; }
.mock-row { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 12px; font-size: 0.88rem; }
.mock-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 10px;
}
.mock-card strong { display: block; }
.mock-chat {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}
.mock-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #cde8df;
}
.placeholder-note {
  margin: 10px 2px 0;
  color: rgba(255,255,255,0.82);
  font-size: 0.8rem;
}

.section { padding: 72px 0; }
.section h2 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  letter-spacing: -0.03em;
}
.section-lead { color: var(--muted); max-width: 40rem; margin-bottom: 32px; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.step, .feature, .price-card, .privacy-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 8px 24px rgba(6, 53, 58, 0.04);
}
.num {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--mint);
  color: var(--teal-dark);
  font-weight: 800;
  margin-bottom: 12px;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.privacy {
  background: var(--deep);
  color: #e8f7f1;
}
.privacy h2, .privacy p { color: inherit; }
.privacy .section-lead { color: #b7d4cc; }
.privacy-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: start; }
.privacy-card { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.08); color: #e8f7f1; }

.price-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.price-card h3 { margin-top: 0; }
.price {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--deep);
}
.price-card.featured {
  border-color: var(--teal);
  box-shadow: var(--shadow);
}
.note { font-size: 0.92rem; color: var(--muted); }

.compare { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
}
th, td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { background: var(--mint); font-size: 0.92rem; }
.todo {
  color: var(--warn);
  font-size: 0.86rem;
}

.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button {
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 16px 0;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
}
.faq-item dd { display: none; margin: 0 0 16px; color: var(--muted); }
.faq-item.is-open dd { display: block; }

.legal { padding: 48px 0 80px; }
.legal h1 { letter-spacing: -0.03em; }
.legal h2 { font-size: 1.2rem; margin-top: 28px; }
.legal p, .legal li { color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer .wrap { align-items: flex-start; }
.disclaimer { max-width: 46rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; }

.lang { font-size: 0.82rem; color: var(--muted); }

@media (max-width: 860px) {
  .hero-grid, .steps, .features, .privacy-grid, .price-wrap { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .site-header .wrap { min-height: 60px; flex-wrap: wrap; padding: 8px 0; }
  .nav { width: 100%; gap: 12px 16px; padding-bottom: 8px; }
}