.docker-install {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-2: #20232f;
  --border: #2e3348;
  --text: #e4e8f1;
  --text-dim: #8892a8;
  --text-faint: #5b6378;
  --accent: #60a5fa;
  --accent-dim: #3b6bb3;
  --green: #34d399;
  --yellow: #fbbf24;
  --red: #f87171;
  --code-bg: #0a0c11;
  --radius: 8px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.docker-install[data-theme="light"] {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-2: #eef0f6;
  --border: #dbdfeb;
  --text: #1a1d27;
  --text-dim: #565f78;
  --text-faint: #8f97ac;
  --accent: #2563eb;
  --accent-dim: #c9dafc;
  --green: #0d9668;
  --yellow: #b45309;
  --red: #dc2626;
  --code-bg: #0f1117;
}
@media (prefers-color-scheme: light) {
  .docker-install:not([data-theme="dark"]) {
    --bg: #f5f6fa;
    --surface: #ffffff;
    --surface-2: #eef0f6;
    --border: #dbdfeb;
    --text: #1a1d27;
    --text-dim: #565f78;
    --text-faint: #8f97ac;
    --accent: #2563eb;
    --accent-dim: #c9dafc;
    --green: #0d9668;
    --yellow: #b45309;
    --red: #dc2626;
    --code-bg: #0f1117;
  }
}

.docker-install * { box-sizing: border-box; }
.docker-install a { color: var(--accent); }
.docker-install a:focus-visible,
.docker-install button:focus-visible,
.docker-install summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.docker-install .shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 860px);
  justify-content: center;
  gap: 56px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}
@media (max-width: 900px) {
  .docker-install .shell { grid-template-columns: 1fr; padding: 28px 18px 72px; }
  .docker-install nav.toc { display: none; }
}

.docker-install header.masthead {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.docker-install .masthead-title {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0 0 6px;
}
.docker-install .masthead-title .dim { color: var(--text-dim); font-weight: 500; }
.docker-install .masthead-sub { color: var(--text-dim); font-size: 1rem; margin: 0; max-width: 52ch; }
.docker-install .badge-row { display: flex; gap: 8px; flex-wrap: wrap; }
.docker-install .badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: var(--surface);
  white-space: nowrap;
}
.docker-install .badge.accent { color: var(--accent); border-color: var(--accent-dim); background: color-mix(in srgb, var(--accent) 12%, var(--surface)); }

.docker-install nav.toc {
  position: sticky;
  top: 32px;
  align-self: start;
  font-size: 0.86rem;
}
.docker-install nav.toc .toc-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
  color: var(--text-faint);
  margin-bottom: 10px;
  font-weight: 600;
}
.docker-install nav.toc ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.docker-install nav.toc li a {
  display: block;
  color: var(--text-dim);
  text-decoration: none;
  padding: 6px 0 6px 12px;
  border-left: 2px solid var(--border);
}
.docker-install nav.toc li a:hover { color: var(--text); border-left-color: var(--text-dim); }

.docker-install .install-main { min-width: 0; }
.docker-install section { margin-bottom: 52px; scroll-margin-top: 24px; }
.docker-install h2 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0 0 4px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.docker-install h2 .step-no {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
}
.docker-install h3 { font-size: 1.02rem; font-weight: 650; margin: 22px 0 8px; }
.docker-install .section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.68rem;
  color: var(--text-faint);
  font-weight: 600;
  margin-bottom: 8px;
}
.docker-install p { margin: 0 0 14px; max-width: 66ch; }
.docker-install ul, .docker-install ol { margin: 0 0 14px; padding-left: 22px; }
.docker-install li { margin-bottom: 6px; }
.docker-install li::marker { color: var(--text-faint); }

.docker-install code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--surface-2);
  padding: 0.14em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.docker-install pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  overflow-x: auto;
  margin: 0 0 16px;
}
.docker-install pre code {
  background: none;
  border: none;
  padding: 0;
  color: #e4e8f1;
  font-size: 0.84rem;
  line-height: 1.55;
  white-space: pre;
}

.docker-install .callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px;
  margin: 0 0 16px;
}
.docker-install .callout p:last-child { margin-bottom: 0; }
.docker-install .callout.warn { border-left-color: var(--yellow); }
.docker-install .callout.warn .callout-label { color: var(--yellow); }
.docker-install .callout.danger { border-left-color: var(--red); }
.docker-install .callout.danger .callout-label { color: var(--red); }
.docker-install .callout.ok { border-left-color: var(--green); }
.docker-install .callout.ok .callout-label { color: var(--green); }
.docker-install .callout-label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
}

.docker-install table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 0.88rem;
}
.docker-install .table-wrap { overflow-x: auto; margin: 0 0 16px; }
.docker-install .table-wrap table { margin-bottom: 0; }
.docker-install th, .docker-install td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.docker-install th {
  color: var(--text-faint);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.docker-install td code { white-space: nowrap; }

.docker-install .platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.docker-install .platform-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.docker-install .platform-card h3 { margin-top: 0; }
.docker-install .platform-card pre { margin-bottom: 0; }

.docker-install hr.rule { border: none; border-top: 1px solid var(--border); margin: 48px 0; }

.docker-install .install-footer {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  margin-top: 24px;
  padding-top: 20px;
  color: var(--text-faint);
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.docker-install .lang-switch { font-size: 0.8rem; }
.docker-install .lang-switch a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-left: 4px;
}
.docker-install .lang-switch a.active { color: var(--text); border-color: var(--accent-dim); background: var(--surface); }