:root {
  --bg: #f3f8ff;
  --surface: #ffffff;
  --ink: #0f1b2d;
  --muted: #4f5d75;
  --brand: #1b74ff;
  --brand-2: #00b7a8;
  --accent: #ff9f1c;
  --line: #dbe6f5;
  --shadow: 0 18px 40px rgba(12, 46, 92, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Avenir Next", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 540px at 105% -15%, rgba(27, 116, 255, 0.18), transparent 62%),
    radial-gradient(760px 420px at -8% 28%, rgba(0, 183, 168, 0.18), transparent 66%),
    linear-gradient(180deg, #f7fbff 0%, #eef5ff 100%);
  line-height: 1.6;
}

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

header.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(247, 251, 255, 0.84);
  border-bottom: 1px solid var(--line);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--brand) 0%, var(--brand-2) 100%);
  box-shadow: 0 8px 20px rgba(20, 84, 188, 0.35);
}

nav a {
  color: var(--ink);
  text-decoration: none;
  margin-left: 16px;
  font-weight: 600;
  opacity: 0.82;
}

nav a:hover,
nav a.active {
  opacity: 1;
  color: var(--brand);
}

.hero {
  padding: 72px 0 32px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 26px;
  align-items: stretch;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel.hero-copy {
  padding: 34px;
}

.kicker {
  display: inline-block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 8px;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.subtitle {
  color: var(--muted);
  margin: 0 0 24px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn.primary {
  background: linear-gradient(135deg, var(--brand) 0%, #4193ff 100%);
  color: #ffffff;
}

.btn.secondary {
  background: #f6f9ff;
  border-color: var(--line);
  color: var(--ink);
}

.hero-metrics {
  padding: 28px;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
  align-content: center;
}

.metric {
  background: #f8fbff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
}

.metric .v {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--brand);
}

.metric .k {
  font-size: 0.86rem;
  color: var(--muted);
}

section {
  padding: 24px 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 18px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.card h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

ul.clean {
  margin: 8px 0 0;
  padding-left: 18px;
}

ul.clean li {
  margin-bottom: 6px;
}

.callout {
  background: linear-gradient(120deg, #f3f9ff 0%, #f2fff9 100%);
  border: 1px solid #cfe6ff;
  border-radius: 14px;
  padding: 18px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 12px;
  vertical-align: top;
}

th {
  background: #f6faff;
}

footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  padding: 20px 0 32px;
  color: var(--muted);
  font-size: 0.92rem;
}

small.badge {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  background: #f7fbff;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  nav a {
    margin-left: 10px;
  }

  .topbar {
    flex-wrap: wrap;
    padding: 8px 0;
  }
}