:root {
  --ink: #14121f;
  --fg: #1c1930;
  --muted: #5c5670;
  --line: #e6e2ef;
  --card: #ffffff;
  --page: #f6f4fb;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --max: 720px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--fg);
  background:
    radial-gradient(1200px 500px at 10% -10%, #e0e7ff 0%, transparent 55%),
    radial-gradient(900px 420px at 100% 0%, #fae8ff 0%, transparent 50%),
    var(--page);
  font-family: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: #3730a3;
}

.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.brand-name {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #3730a3;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.hero {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  padding: 1.75rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 10px 30px rgba(28, 25, 48, 0.04);
}

.hero h1 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.85rem, 4vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.04em;
  color: var(--ink);
}

.hero-lead {
  margin: 0 0 1.1rem;
  color: var(--muted);
  max-width: 38rem;
}

.meta-list {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.92rem;
  color: var(--muted);
}

.meta-list strong {
  color: var(--fg);
  font-weight: 600;
}

.toc {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.toc h2 {
  margin: 0 0 0.65rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
  columns: 1;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .toc ol {
    columns: 2;
  }
}

.toc li {
  break-inside: avoid;
  margin: 0.2rem 0;
  font-size: 0.92rem;
}

.toc a {
  color: var(--fg);
  text-decoration: none;
}

.toc a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(28, 25, 48, 0.04);
}

.article section + section {
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.article h2 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.article h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
  color: var(--ink);
}

.article p,
.article li {
  color: #3b3550;
}

.article p {
  margin: 0 0 0.85rem;
}

.article ul,
.article ol {
  margin: 0 0 0.85rem;
  padding-left: 1.2rem;
}

.article li + li {
  margin-top: 0.3rem;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 0.75rem 0 1rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  text-align: left;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #faf8ff;
  font-weight: 700;
  color: var(--ink);
}

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

.site-footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0.35rem 0;
}

.request-button {
  display: inline-block;
  margin: 0.4rem 0 1.2rem;
  padding: 0.75rem 1.1rem;
  border-radius: 0.75rem;
  background: var(--ink);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.request-button:hover {
  color: #ffffff;
  background: #312e81;
}

@media (min-width: 720px) {
  .hero,
  .article {
    padding: 2rem 2.1rem;
  }
}