:root {
  --ink: #10233c;
  --ink-soft: #4c6481;
  --panel: rgba(251, 253, 255, 0.84);
  --panel-strong: rgba(244, 250, 255, 0.94);
  --line: rgba(16, 35, 60, 0.1);
  --brand: #4b9df2;
  --brand-deep: #2a6fc3;
  --accent: #173b66;
  --accent-soft: #dfeeff;
  --shadow: 0 18px 50px rgba(23, 59, 102, 0.08);
  --radius-lg: 28px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(135, 201, 255, 0.26), transparent 30%),
    radial-gradient(circle at 85% 18%, rgba(75, 157, 242, 0.14), transparent 24%),
    linear-gradient(180deg, #f3f9ff 0%, #e8f2fc 100%);
  line-height: 1.7;
}

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

.shell {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 20px auto 32px;
}

.frame {
  border: 1px solid rgba(20, 32, 51, 0.08);
  border-radius: 32px;
  background: rgba(248, 252, 255, 0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.topbar,
.footer {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(246, 251, 255, 0.86);
  backdrop-filter: blur(16px);
}

.footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  border-bottom: 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  max-width: 220px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #14345a, #5caef7);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.brand-mark svg {
  width: 24px;
  height: 24px;
  color: #e9f7ff;
}

.brand-copy strong {
  display: block;
  font-size: 0.96rem;
  letter-spacing: -0.03em;
}

.nav {
  display: flex;
  gap: 2px;
  flex-wrap: nowrap;
  justify-content: center;
  min-width: 0;
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: nowrap;
}

.nav a,
.top-cta,
.doc-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.94rem;
  white-space: nowrap;
}

.nav a {
  color: var(--ink-soft);
}

.nav a[aria-current="page"] {
  color: var(--accent);
  background: rgba(75, 157, 242, 0.1);
}

.top-cta,
.doc-link.primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #f7fbff;
}

.doc-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: rgba(75, 157, 242, 0.08);
  border: 1px solid rgba(75, 157, 242, 0.18);
}

.page-hero {
  padding: 34px 28px 18px;
  display: grid;
  gap: 14px;
}

.eyebrow,
.source-meta,
.markdown-body code,
.markdown-body pre,
.markdown-body th {
  font-family: "IBM Plex Mono", monospace;
}

.eyebrow {
  display: inline-block;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(75, 157, 242, 0.12);
  color: var(--brand-deep);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  max-width: 12ch;
}

.page-copy,
.source-meta {
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.page-content {
  padding: 0 28px 34px;
}

.markdown-body {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--panel-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.markdown-body > * + * {
  margin-top: 18px;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  max-width: none;
  letter-spacing: -0.04em;
  line-height: 1.08;
  scroll-margin-top: 24px;
}

.markdown-body h1 { font-size: 2.5rem; }
.markdown-body h2 { font-size: 1.9rem; }
.markdown-body h3 { font-size: 1.45rem; }
.markdown-body h4 { font-size: 1.18rem; }

.markdown-body p,
.markdown-body li,
.markdown-body blockquote {
  color: var(--ink);
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 24px;
}

.markdown-body li + li {
  margin-top: 8px;
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid var(--line);
}

.markdown-body blockquote {
  padding: 16px 18px;
  border-left: 4px solid var(--brand);
  background: rgba(75, 157, 242, 0.08);
  border-radius: 14px;
}

.markdown-body a {
  color: var(--brand-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.markdown-body code {
  padding: 0.18rem 0.42rem;
  border-radius: 8px;
  background: rgba(23, 59, 102, 0.08);
  color: var(--accent);
  font-size: 0.94em;
}

.markdown-body pre {
  overflow-x: auto;
  padding: 18px;
  border-radius: 18px;
  background: #0f2340;
  color: #eef6ff;
  box-shadow: inset 0 0 0 1px rgba(135, 201, 255, 0.12);
}

.markdown-body pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

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

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--line);
}

.markdown-body th,
.markdown-body td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.markdown-body th {
  background: rgba(75, 157, 242, 0.12);
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.markdown-body tr:last-child td {
  border-bottom: 0;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 1240px) {
  .topbar {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .shell {
    width: min(100% - 16px, var(--max-width));
    margin-top: 8px;
  }

  .frame {
    border-radius: 24px;
  }

  .topbar,
  .page-hero,
  .page-content,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .markdown-body {
    padding: 20px;
  }
}