:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #5d6875;
  --line: #dfe4ea;
  --accent: #2563eb;
  --accent-soft: #eaf1ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand strong {
  font-size: 18px;
  letter-spacing: 0;
}

.brand span {
  color: var(--muted);
  font-size: 13px;
}

.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--muted);
  font-size: 14px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: clamp(24px, 4vw, 44px);
  box-shadow: 0 18px 50px rgba(18, 31, 49, 0.06);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  margin-bottom: 16px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #174ea6;
  font-size: 13px;
  font-weight: 600;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin: 32px 0 10px;
  font-size: 20px;
  line-height: 1.25;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0 0 18px 20px;
  padding: 0;
}

li {
  margin: 8px 0;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 17px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 28px;
}

.notice {
  border-left: 4px solid var(--accent);
  background: #f8fbff;
  padding: 14px 16px;
  margin: 22px 0;
  color: #29394f;
}

.footer {
  color: var(--muted);
  font-size: 13px;
  margin-top: 24px;
  text-align: center;
}

@media (max-width: 680px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }
}