@import url("https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;700&family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
  --ink: #1a1f2e;
  --muted: #667085;
  --line: #e4e7ec;
  --paper: #f8f9fc;
  --accent: #7c9cff;
  --deep: #1e2a4a;
  --teal: #3d6b8a;
  --code-bg: #e8edf5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 "DM Sans", sans-serif;
}

.shell {
  max-width: 1160px;
  margin: auto;
  padding: 0 32px;
}

header { border-bottom: 1px solid var(--line); background: #fff; }

.nav {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font: 700 1.08rem "Space Grotesk", sans-serif;
  letter-spacing: -0.04em;
  color: var(--ink);
  text-decoration: none;
}

.brand b {
  font: 500 0.9rem "DM Mono", monospace;
  color: var(--accent);
}

.brand span { color: #98a2b3; }

small, label {
  font: 500 0.68rem "DM Mono", monospace;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}

.hero {
  padding-top: 100px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.hero label { color: var(--teal); }

.hero h1 {
  font: 600 clamp(2.8rem, 7vw, 5.8rem)/0.95 "Space Grotesk", sans-serif;
  letter-spacing: -0.07em;
  margin: 22px 0 28px;
}

.hero h1 i {
  font-style: normal;
  color: var(--teal);
}

.dek {
  font-size: 1.22rem;
  line-height: 1.45;
  max-width: 560px;
  color: #475467;
  margin: 0 0 28px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
}

.hero-meta span {
  font: 500 0.68rem "DM Mono", monospace;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 720px);
  gap: 72px;
  padding-top: 72px;
  padding-bottom: 100px;
}

.layout > nav {
  position: sticky;
  top: 28px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.layout > nav label {
  color: var(--ink);
  margin-bottom: 10px;
}

.layout > nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.layout > nav a:hover { color: var(--ink); }

article section { margin-bottom: 72px; }

article p {
  color: #475467;
  font-size: 1.02rem;
  margin: 0 0 18px;
}

.lead {
  font-size: 1.42rem;
  line-height: 1.45;
  color: var(--ink);
  letter-spacing: -0.02em;
}

h2 {
  font: 600 2rem/1.15 "Space Grotesk", sans-serif;
  letter-spacing: -0.05em;
  margin: 0 0 24px;
}

h2 em {
  font: 500 0.7rem "DM Mono", monospace;
  color: #98a2b3;
  font-style: normal;
  letter-spacing: 0.08em;
  margin-right: 12px;
}

h3 {
  font: 600 1.05rem "Space Grotesk", sans-serif;
  margin: 0 0 8px;
}

.editorial {
  display: inline-block;
  font: 500 0.65rem "DM Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  background: #e8f0f6;
  padding: 4px 8px;
  border-radius: 3px;
  margin-bottom: 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.cards > div {
  border-top: 2px solid var(--deep);
  padding-top: 16px;
}

.cards p {
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

code {
  font: 500 0.88em "DM Mono", monospace;
  background: var(--code-bg);
  padding: 2px 5px;
  border-radius: 3px;
  color: #2a4480;
}

.steps {
  background: var(--deep);
  color: #e4e7ec;
  padding: 28px 30px;
  border-radius: 4px;
  margin: 28px 0;
}

.steps label {
  display: block;
  color: #98a2b3;
  margin-bottom: 18px;
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.step:first-of-type { border-top: none; padding-top: 0; }

.step .n {
  font: 500 0.75rem "DM Mono", monospace;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.step strong {
  display: block;
  font: 600 0.98rem "Space Grotesk", sans-serif;
  color: #fff;
  margin-bottom: 4px;
}

.step p {
  margin: 0;
  font-size: 0.9rem;
  color: #b0b8c9;
}

.platforms {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
}

.platforms li {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.platforms li strong {
  display: block;
  font: 600 1.02rem "Space Grotesk", sans-serif;
  margin-bottom: 6px;
}

.platforms li p {
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.platforms a {
  font: 500 0.78rem "DM Mono", monospace;
  color: var(--teal);
  text-decoration: none;
  word-break: break-all;
}

.platforms a:hover { text-decoration: underline; }

.tag {
  display: inline-block;
  font: 500 0.62rem "DM Mono", monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  background: #eef1f6;
  padding: 3px 7px;
  border-radius: 3px;
  margin-bottom: 8px;
}

.after-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
}

.after-list li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.after-list li strong {
  font: 600 0.95rem "Space Grotesk", sans-serif;
}

.after-list li span {
  color: #475467;
  font-size: 0.95rem;
}

.note {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 18px 20px;
  margin: 24px 0;
}

.note p { margin: 0; font-size: 0.95rem; }

.disclaimer {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px 30px;
  border-radius: 4px;
}

.disclaimer p {
  margin: 0;
  font-size: 0.92rem;
  color: #667085;
}

.sources {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sources li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  color: #475467;
}

.sources a {
  color: var(--teal);
  text-decoration: none;
}

.sources a:hover { text-decoration: underline; }

.sources .kind {
  font: 500 0.62rem "DM Mono", monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-right: 8px;
}

footer {
  background: var(--deep);
  color: #98a2b3;
  padding: 36px 0;
}

footer a {
  color: #c8d0e0;
  text-decoration: underline;
}

footer .shell {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

footer .brand { color: #fff; }
footer .brand span { color: #667085; }

.domain-note {
  font-size: 0.85rem;
  opacity: 0.85;
}

.error {
  min-height: calc(100vh - 180px);
  padding-top: 140px;
  padding-bottom: 80px;
}

.error h1 {
  font: 600 clamp(2.8rem, 7vw, 5.5rem)/1 "Space Grotesk", sans-serif;
  letter-spacing: -0.07em;
  margin: 18px 0;
}

.error p {
  max-width: 440px;
  color: var(--muted);
  font-size: 1.08rem;
}

.error a {
  display: inline-block;
  background: var(--accent);
  color: var(--ink);
  padding: 13px 18px;
  text-decoration: none;
  font-weight: 700;
  margin-top: 18px;
  border-radius: 3px;
}

@media (max-width: 800px) {
  .shell { padding-left: 22px; padding-right: 22px; }
  .nav small { display: none; }
  .hero { padding-top: 68px; padding-bottom: 56px; }
  .hero h1 { font-size: clamp(2.6rem, 12vw, 4.2rem); }
  .layout { display: block; padding-top: 48px; }
  .layout > nav {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 14px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 52px;
  }
  .layout > nav label { grid-column: 1 / -1; }
  .lead { font-size: 1.22rem; }
  .cards { grid-template-columns: 1fr; gap: 24px; }
  .after-list li { display: block; }
  .after-list li strong { display: block; margin-bottom: 4px; }
  article section { margin-bottom: 56px; }
  .steps { padding: 22px; }
}