:root {
  --bg: #0b0f1a;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-strong: rgba(255, 255, 255, 0.07);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #f59e0b;
  --accent-2: #ef4444;
  --success: #10b981;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "DM Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(245, 158, 11, 0.14), transparent 32%),
    linear-gradient(180deg, #0b0f1a 0%, #0c1323 100%);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(11, 15, 26, 0.82);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-badge {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #fff;
  font-size: 12px;
}

.nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.hero {
  padding: 56px 0 28px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}

h1 {
  margin: 18px 0 12px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

h2 {
  margin: 0 0 12px;
  font-size: 24px;
  letter-spacing: -0.02em;
}

h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

p,
li {
  color: var(--muted);
  font-size: 16px;
}

.summary {
  max-width: 760px;
  font-size: 18px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
}

.card strong,
strong {
  color: var(--text);
}

.section {
  margin-top: 22px;
}

.section ul,
.section ol {
  margin: 10px 0 0;
  padding-left: 20px;
}

.kicker {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}

.notice {
  border-left: 3px solid var(--success);
  padding-left: 14px;
  margin-top: 10px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
}

.table th,
.table td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.table th {
  color: var(--text);
  font-size: 14px;
}

.muted {
  color: var(--muted);
}

.footer {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.code {
  font-family: "JetBrains Mono", "SFMono-Regular", Menlo, monospace;
  font-size: 14px;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  overflow-x: auto;
  color: #bae6fd;
}

@media (max-width: 760px) {
  .grid.two {
    grid-template-columns: 1fr;
  }

  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}