:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --ink: #0f172a;
  --muted: #5b677a;
  --line: #d9e1ee;
  --brand: #1f6feb;
  --brand-dark: #164fa7;
  --accent: #22c55e;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
  color: var(--ink);
}
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--brand), #8ab4ff);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-weight: 600;
}
.nav-links a { color: var(--ink); }
.nav-links a.button { color: white; }

.hero {
  padding: 86px 0 68px;
  background:
    radial-gradient(circle at 80% 10%, rgba(31,111,235,0.13), transparent 32%),
    radial-gradient(circle at 10% 30%, rgba(34,197,94,0.11), transparent 28%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 46px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: #eaf2ff;
  color: var(--brand-dark);
  font-weight: 700;
  font-size: 14px;
}

h1, h2, h3 { line-height: 1.15; margin: 0 0 16px; }
h1 { font-size: clamp(40px, 6vw, 68px); letter-spacing: -0.04em; }
h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -0.025em; }
h3 { font-size: 22px; }
p { margin: 0 0 18px; color: var(--muted); }
.lead { font-size: 20px; max-width: 720px; }

.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 750;
  cursor: pointer;
  text-decoration: none;
}
.button:hover { text-decoration: none; }
.button.primary { background: var(--brand); color: white; }
.button.primary:hover { background: var(--brand-dark); }
.button.secondary { background: white; border-color: var(--line); color: var(--ink); }
.button.secondary:hover { border-color: var(--brand); }

.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.product-badge { color: var(--accent); font-weight: 800; }
.mockup {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, #f9fbff, #eff5ff);
  padding: 16px;
  margin-top: 18px;
}
.mockup-bar { height: 12px; background: #dbe7fb; border-radius: 999px; margin-bottom: 14px; }
.mockup-panel { height: 210px; border-radius: 12px; background: white; border: 1px solid #dce5f4; padding: 18px; }
.mock-line { height: 10px; background: #e6edf8; border-radius: 999px; margin: 12px 0; }
.mock-line.short { width: 55%; }
.mock-line.medium { width: 75%; }

.section { padding: 72px 0; }
.section.white { background: white; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 800px; margin-bottom: 34px; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.045);
}
.card ul { margin: 14px 0 0; padding-left: 20px; color: var(--muted); }
.card li { margin: 8px 0; }

.price {
  font-size: 34px;
  font-weight: 850;
  color: var(--ink);
  margin: 16px 0 4px;
}
.price-note { color: var(--muted); font-size: 14px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
table { border-collapse: collapse; width: 100%; min-width: 720px; }
th, td { text-align: left; padding: 16px; border-bottom: 1px solid var(--line); }
th { background: #f7faff; }
tr:last-child td { border-bottom: 0; }

.download-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.notice {
  padding: 16px 18px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 14px;
  color: #8a4b11;
}
.notice p { color: inherit; margin: 0; }

.footer {
  padding: 42px 0;
  background: #0f172a;
  color: white;
}
.footer p, .footer a { color: #cbd5e1; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 26px;
}
.footer h4 { margin: 0 0 12px; }
.footer a { display: block; margin: 7px 0; }

@media (max-width: 850px) {
  .hero-grid, .grid-3, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .nav { align-items: flex-start; flex-direction: column; padding: 16px 0; }
  .nav-links { flex-wrap: wrap; gap: 14px; }
  .download-box { flex-direction: column; align-items: flex-start; }
}