:root {
  color-scheme: light;
  --ink: #101820;
  --muted: #53606d;
  --line: #d9dee3;
  --paper: #f7f8f9;
  --surface: #ffffff;
  --accent: #2a7de1;
  --accent-strong: #0f5fbd;
  --green: #3e8d63;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--paper);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentColor 28%, transparent);
  text-underline-offset: 4px;
}

.page-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.page-shell.narrow {
  width: min(760px, calc(100% - 40px));
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  margin-bottom: 40px;
  color: var(--muted);
  font-size: 0.95rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--accent-strong);
  font-size: 0.78rem;
  letter-spacing: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.84fr);
  gap: 52px;
  align-items: center;
  min-height: calc(100vh - 176px);
}

.hero-copy h1,
.policy h1 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(3rem, 8vw, 6.4rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-copy p {
  max-width: 660px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.actions {
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: white;
  font-weight: 700;
  text-decoration: none;
}

.signal-panel {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(42, 125, 225, 0.12), rgba(62, 141, 99, 0.1)),
    radial-gradient(circle at 16% 20%, rgba(42, 125, 225, 0.22), transparent 24%),
    var(--surface);
}

.signal-card {
  position: absolute;
  z-index: 2;
  display: grid;
  gap: 6px;
  width: min(220px, 56%);
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 45px rgba(16, 24, 32, 0.08);
}

.signal-card span {
  color: var(--muted);
  font-size: 0.82rem;
}

.signal-card strong {
  font-size: 1.25rem;
}

.signal-card.primary {
  top: 56px;
  left: 36px;
  border-color: color-mix(in srgb, var(--accent) 34%, var(--line));
}

.signal-card:not(.primary):nth-of-type(2) {
  right: 34px;
  top: 164px;
}

.signal-card:nth-of-type(3) {
  left: 72px;
  bottom: 58px;
}

.signal-line,
.signal-dot {
  position: absolute;
  background: var(--accent);
}

.signal-line {
  height: 2px;
  opacity: 0.34;
  transform-origin: left center;
}

.signal-line.one {
  left: 180px;
  top: 155px;
  width: 180px;
  transform: rotate(18deg);
}

.signal-line.two {
  left: 150px;
  bottom: 154px;
  width: 240px;
  background: var(--green);
  transform: rotate(-22deg);
}

.signal-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
}

.signal-dot.a {
  right: 76px;
  top: 72px;
}

.signal-dot.b {
  left: 42%;
  top: 52%;
  background: var(--green);
}

.signal-dot.c {
  right: 24%;
  bottom: 54px;
}

.details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 56px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}

.details article {
  min-height: 220px;
  padding: 28px;
  background: var(--surface);
}

.details h2 {
  margin: 0 0 14px;
  font-size: 1.05rem;
}

.details p,
.policy p {
  margin: 0;
  color: var(--muted);
}

.details p + p,
.policy p + p {
  margin-top: 18px;
}

.policy {
  margin-top: 72px;
}

.policy h1 {
  margin-bottom: 28px;
  font-size: clamp(2.4rem, 7vw, 4.8rem);
}

.policy p {
  font-size: 1.08rem;
}

@media (max-width: 820px) {
  .page-shell {
    width: min(100% - 28px, 640px);
    padding-top: 16px;
  }

  .nav {
    margin-bottom: 28px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 34px;
    min-height: auto;
  }

  .hero-copy h1 {
    font-size: clamp(3rem, 17vw, 5.2rem);
  }

  .signal-panel {
    min-height: 360px;
  }

  .details {
    grid-template-columns: 1fr;
  }

  .details article {
    min-height: 0;
  }
}