:root {
  color-scheme: dark;
  --bg: #081017;
  --bg-elevated: #0c1720;
  --panel: #101d27;
  --panel-strong: #142531;
  --panel-muted: #0b151d;
  --ink: #e7f0f4;
  --ink-strong: #f7fbfd;
  --muted: #91a5b1;
  --faint: #667b87;
  --line: #273b47;
  --line-strong: #3b5564;
  --accent: #39c5bb;
  --accent-strong: #71e1d9;
  --accent-soft: rgba(57, 197, 187, 0.12);
  --cyan: #4cc9f0;
  --pink: #ff70a6;
  --safe: #63d6a2;
  --config: #69b7ff;
  --optional: #b49cff;
  --recovery: #f2cf66;
  --danger: #ff6b78;
  --danger-strong: #ff9aa3;
  --danger-soft: rgba(255, 107, 120, 0.12);
  --warning: #f7bd55;
  --warning-soft: rgba(247, 189, 85, 0.12);
  --note: #69b7ff;
  --note-soft: rgba(105, 183, 255, 0.11);
  --code-bg: #071018;
  --code-ink: #d7edf2;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
  --header-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

[data-palette="contrast"] {
  --bg: #000;
  --bg-elevated: #050505;
  --panel: #0b0b0b;
  --panel-strong: #111;
  --panel-muted: #050505;
  --ink: #fff;
  --ink-strong: #fff;
  --muted: #d2d2d2;
  --faint: #aaa;
  --line: #666;
  --line-strong: #aaa;
  --accent: #64fff3;
  --accent-strong: #a2fff8;
  --accent-soft: rgba(100, 255, 243, 0.15);
  --code-bg: #000;
}

[data-palette="light"] {
  color-scheme: light;
  --bg: #edf3f4;
  --bg-elevated: #f7fafb;
  --panel: #fff;
  --panel-strong: #f2f7f7;
  --panel-muted: #eaf1f2;
  --ink: #1b2930;
  --ink-strong: #07151b;
  --muted: #526873;
  --faint: #72858e;
  --line: #c7d5da;
  --line-strong: #92aab4;
  --accent: #087f7b;
  --accent-strong: #05625f;
  --accent-soft: rgba(8, 127, 123, 0.1);
  --cyan: #087ba0;
  --pink: #c42f70;
  --safe: #16744f;
  --config: #176aa5;
  --optional: #6449a5;
  --recovery: #8a5a00;
  --danger: #b52235;
  --danger-strong: #8f1020;
  --danger-soft: rgba(181, 34, 53, 0.09);
  --warning: #8a5800;
  --warning-soft: rgba(138, 88, 0, 0.09);
  --note: #176aa5;
  --note-soft: rgba(23, 106, 165, 0.09);
  --code-bg: #eef3f4;
  --code-ink: #18323d;
  --shadow: 0 18px 50px rgba(32, 58, 68, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 22px);
  background: var(--bg);
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 18% -10%, rgba(57, 197, 187, 0.09), transparent 30rem),
    radial-gradient(circle at 95% 8%, rgba(76, 201, 240, 0.06), transparent 26rem),
    var(--bg);
  color: var(--ink);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 32px 32px;
  content: "";
  mask-image: linear-gradient(to bottom, #000, transparent 70%);
  pointer-events: none;
}

button,
input,
select {
  font: inherit;
}

button,
summary,
select,
input[type="checkbox"] {
  cursor: pointer;
}

a {
  color: var(--accent-strong);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--cyan);
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

code,
pre,
kbd,
.mono {
  font-family: "Cascadia Code", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

kbd {
  padding: 0.08rem 0.35rem;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--panel-muted);
  color: var(--muted);
  font-size: 0.72rem;
  white-space: nowrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 12px;
  z-index: 200;
  transform: translateY(-160%);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #051013;
  font-weight: 750;
  transition: transform 120ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.reading-rail {
  position: fixed;
  inset: 0 0 auto;
  z-index: 120;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.reading-rail span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--cyan), var(--pink));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px clamp(16px, 3vw, 38px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
  color: var(--ink-strong);
  text-decoration: none;
}

.brand:hover {
  color: var(--ink-strong);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 39px;
  height: 39px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 9px;
  background: var(--accent-soft);
  box-shadow: inset 0 0 18px rgba(57, 197, 187, 0.08);
  color: var(--accent-strong);
  font: 700 0.82rem "Cascadia Code", monospace;
}

.brand strong,
.brand small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand strong {
  color: var(--ink-strong);
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}

.brand small {
  margin-top: 1px;
  color: var(--muted);
  font-size: 0.7rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-trigger,
.page-button,
.palette-switch {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
}

.search-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px 5px 11px;
}

.search-trigger:hover,
.page-button:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.palette-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
}

.palette-switch button {
  min-width: 31px;
  min-height: 30px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  font-size: 0.75rem;
}

.palette-switch button[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.page-button {
  min-width: 42px;
  padding: 5px 9px;
}

.mobile-navigator {
  display: none;
}

.layout-shell {
  display: grid;
  grid-template-columns: minmax(210px, 242px) minmax(0, 860px) minmax(230px, 274px);
  gap: clamp(16px, 2vw, 26px);
  width: min(1480px, calc(100% - 36px));
  margin: 24px auto 80px;
  align-items: start;
  justify-content: center;
}

.left-toolbox,
.right-toolbox {
  position: sticky;
  top: calc(var(--header-height) + 20px);
  max-height: calc(100vh - var(--header-height) - 38px);
}

.toolbox-card {
  max-height: inherit;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  box-shadow: var(--shadow);
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
}

.toolbox-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 13px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-muted);
}

.toolbox-heading span {
  color: var(--faint);
  font: 0.65rem "Cascadia Code", monospace;
}

.toolbox-kicker {
  margin: 0;
  color: var(--accent-strong);
  font: 700 0.68rem "Cascadia Code", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.numbered-nav {
  margin: 0;
  padding: 8px;
  list-style: none;
}

.numbered-nav li {
  position: relative;
}

.numbered-nav li + li {
  margin-top: 2px;
}

.numbered-nav a {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) 8px;
  gap: 8px;
  align-items: center;
  padding: 7px 8px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.81rem;
  line-height: 1.35;
  text-decoration: none;
}

.numbered-nav a:hover {
  border-color: var(--line);
  background: var(--panel-strong);
  color: var(--ink-strong);
}

.numbered-nav .nav-number {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--panel-muted);
  color: var(--faint);
  font: 0.65rem "Cascadia Code", monospace;
}

.numbered-nav .nav-state {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line-strong);
}

.numbered-nav a.active {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.numbered-nav a.active .nav-number {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.numbered-nav a.active .nav-state {
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.numbered-nav a.is-read .nav-state {
  background: var(--safe);
}

.numbered-nav a.is-route:not(.active) {
  color: var(--ink);
}

.numbered-nav a.is-route:not(.active) .nav-number {
  border-color: var(--pink);
}

.numbered-nav a.is-route:not(.active) .nav-state {
  background: var(--pink);
}

.sidebar-legend {
  display: grid;
  gap: 6px;
  padding: 10px 13px 13px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.67rem;
}

.sidebar-legend > span {
  display: flex;
  align-items: center;
  gap: 7px;
}

.state-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line-strong);
}

.state-dot.current { background: var(--accent); }
.state-dot.done { background: var(--safe); }
.state-dot.route { background: var(--pink); }

.content-column {
  min-width: 0;
}

.doc-page {
  padding: clamp(22px, 4vw, 52px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  box-shadow: var(--shadow);
}

.article-head {
  position: relative;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.article-head::before {
  display: inline-block;
  margin-bottom: 13px;
  color: var(--accent-strong);
  content: "~/handbook/arch-install.md";
  font: 0.72rem "Cascadia Code", monospace;
}

.breadcrumb {
  display: none;
}

h1,
h2,
h3 {
  color: var(--ink-strong);
  line-height: 1.25;
  text-wrap: balance;
}

h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}

.lead {
  max-width: 70ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.13rem);
  line-height: 1.8;
}

.article-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 25px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--line);
}

.article-meta div {
  min-width: 0;
  padding: 12px 14px;
  background: var(--panel-muted);
}

.article-meta dt {
  color: var(--faint);
  font: 0.68rem "Cascadia Code", monospace;
  text-transform: uppercase;
}

.article-meta dd {
  margin: 4px 0 0;
  color: var(--ink);
  font-size: 0.83rem;
}

.workspace-hub {
  margin: 28px 0 36px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--accent-soft), transparent 36%), var(--panel-muted);
  overflow: hidden;
}

.workspace-intro {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--accent-strong);
  font: 700 0.65rem "Cascadia Code", monospace;
  letter-spacing: 0.12em;
}

.workspace-intro h2,
.dialog-head h2 {
  display: block;
  margin: 0;
  font-size: 1.2rem;
}

.workspace-intro p:last-child {
  max-width: 60ch;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.workspace-status {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font: 0.66rem "Cascadia Code", monospace;
}

.cockpit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.cockpit-panel {
  min-width: 0;
  padding: 18px 20px 20px;
}

.cockpit-panel + .cockpit-panel {
  border-left: 1px solid var(--line);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-heading h3 {
  margin: 0;
  font-size: 0.94rem;
}

.panel-heading span,
.panel-heading button {
  color: var(--faint);
  font-size: 0.7rem;
}

.text-button {
  padding: 3px 5px;
  border: 0;
  background: transparent;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.route-list {
  display: grid;
  gap: 7px;
}

.route-button {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  gap: 9px;
  align-items: center;
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--muted);
  text-align: left;
}

.route-button::before {
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  content: "+";
  color: var(--faint);
  font: 0.72rem "Cascadia Code", monospace;
}

.route-button small {
  color: var(--faint);
  font: 0.62rem "Cascadia Code", monospace;
}

.route-button[aria-pressed="true"] {
  border-color: var(--pink);
  background: color-mix(in srgb, var(--pink) 9%, var(--panel));
  color: var(--ink-strong);
}

.route-button[aria-pressed="true"]::before {
  border-color: var(--pink);
  background: var(--pink);
  color: #190710;
  content: "✓";
}

.checklist {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist label {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 9px;
  align-items: start;
  padding: 6px 4px;
  color: var(--muted);
  font-size: 0.8rem;
}

.checklist input,
.confirm-check input {
  width: 17px;
  height: 17px;
  margin: 4px 0 0;
  accent-color: var(--accent);
}

.checklist label:has(input:checked) {
  color: var(--safe);
  text-decoration: line-through;
  text-decoration-color: color-mix(in srgb, var(--safe) 45%, transparent);
}

.checklist-progress {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 12px;
  color: var(--faint);
  font-size: 0.7rem;
}

.mini-track {
  height: 5px;
  flex: 1;
  overflow: hidden;
  border-radius: 99px;
  background: var(--line);
}

.mini-track span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--safe);
}

.workspace-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  padding: 12px 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.76rem;
}

.workspace-actions button {
  padding: 7px 10px;
  border: 1px solid var(--accent);
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.doc-page > section[id] {
  position: relative;
  scroll-margin-top: calc(var(--header-height) + 24px);
  padding-top: 26px;
}

.doc-page > section[id] + section[id] {
  margin-top: 38px;
  border-top: 1px solid var(--line);
}

.doc-page > section[id].path-match {
  margin-inline: -13px;
  padding-inline: 13px;
  border-left: 2px solid var(--pink);
  background: linear-gradient(90deg, rgba(255, 112, 166, 0.05), transparent 28%);
}

.route-relevance {
  display: inline-flex;
  margin: 0 0 4px;
  padding: 3px 7px;
  border: 1px solid color-mix(in srgb, var(--pink) 70%, var(--line));
  border-radius: 999px;
  color: var(--pink);
  font: 0.62rem "Cascadia Code", monospace;
}

.doc-page h2 {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0 0 15px;
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -0.025em;
}

.doc-page h2 > span:first-child {
  display: grid;
  min-width: 35px;
  height: 31px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font: 0.76rem "Cascadia Code", monospace;
}

.doc-page h3 {
  margin: 26px 0 9px;
  font-size: 1.05rem;
}

.doc-page p,
.doc-page li {
  text-wrap: pretty;
}

.doc-page p {
  margin: 0 0 15px;
}

.heading-anchor {
  display: inline-grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  margin-left: auto;
  border-radius: 6px;
  color: var(--faint);
  font: 0.82rem "Cascadia Code", monospace;
  opacity: 0.7;
  text-decoration: none;
}

.heading-anchor:hover,
.heading-anchor:focus-visible {
  background: var(--accent-soft);
  color: var(--accent-strong);
  opacity: 1;
  text-decoration: none;
}

.section-summary,
.section-checkpoint {
  margin: 16px 0 20px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--panel-muted);
}

.section-summary strong,
.section-checkpoint strong {
  display: block;
  margin-bottom: 3px;
  color: var(--accent-strong);
  font: 700 0.68rem "Cascadia Code", monospace;
  letter-spacing: 0.08em;
}

.section-summary p,
.section-checkpoint p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.section-checkpoint {
  margin-top: 26px;
  border-left-color: var(--safe);
  background: color-mix(in srgb, var(--safe) 7%, var(--panel-muted));
}

.section-checkpoint strong { color: var(--safe); }

.section-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 25px;
  padding-top: 17px;
  border-top: 1px dashed var(--line);
}

.section-pagination a {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-muted);
  color: var(--ink);
  text-decoration: none;
}

.section-pagination a:last-child { text-align: right; }
.section-pagination a:hover { border-color: var(--accent); }
.section-pagination small { color: var(--faint); font: 0.65rem "Cascadia Code", monospace; }
.section-pagination strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 0.83rem; }

.notice {
  margin: 18px 0;
  padding: 13px 15px;
  border: 1px solid var(--note);
  border-left: 4px solid var(--note);
  border-radius: var(--radius-sm);
  background: var(--note-soft);
  color: var(--ink);
}

.notice strong:first-child {
  color: var(--note);
}

.notice.warning {
  border-color: var(--warning);
  background: var(--warning-soft);
}

.notice.warning strong:first-child { color: var(--warning); }

.notice.tip {
  border-color: var(--safe);
  background: color-mix(in srgb, var(--safe) 9%, transparent);
}

.notice.tip strong:first-child { color: var(--safe); }

.notice.example { border-color: var(--optional); background: color-mix(in srgb, var(--optional) 9%, transparent); }
.notice.example strong:first-child { color: var(--optional); }
.notice.recovery { border-color: var(--recovery); background: color-mix(in srgb, var(--recovery) 9%, transparent); }
.notice.recovery strong:first-child { color: var(--recovery); }
.notice.checkpoint { border-color: var(--safe); background: color-mix(in srgb, var(--safe) 9%, transparent); }

.operation-figure,
.theme-gallery figure {
  margin: 19px 0 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-muted);
}

.operation-figure img,
.theme-gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--panel-muted);
}

.operation-figure figcaption,
.theme-gallery figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.76rem;
}

.theme-gallery {
  display: grid;
  gap: 12px;
  margin: 19px 0 22px;
}

.theme-gallery figure { margin: 0; }

.scroll-panel {
  max-height: min(560px, 65vh);
  margin: 18px 0;
  padding: 17px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-muted);
  scrollbar-color: var(--line-strong) transparent;
}

.scroll-panel h3:first-child { margin-top: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 0.8rem;
}

th,
td {
  padding: 10px 11px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--panel-strong);
  color: var(--ink-strong);
  font-size: 0.72rem;
}

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

.doc-page > section[id] > table,
.scroll-panel > table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-color: var(--line-strong) transparent;
}

.command-card {
  --command-accent: var(--config);
  margin: 18px 0;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--command-accent) 52%, var(--line));
  border-radius: var(--radius-sm);
  background: var(--code-bg);
}

.command-card.command-inspect { --command-accent: var(--safe); }
.command-card.command-config { --command-accent: var(--config); }
.command-card.command-danger { --command-accent: var(--danger); }
.command-card.command-optional { --command-accent: var(--optional); }
.command-card.command-recovery { --command-accent: var(--recovery); }

.command-card-header {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 9px;
  padding: 7px 8px 7px 11px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--command-accent) 7%, var(--panel-muted));
}

.command-kind {
  flex: 0 0 auto;
  padding: 2px 6px;
  border: 1px solid var(--command-accent);
  border-radius: 4px;
  color: var(--command-accent);
  font: 700 0.6rem "Cascadia Code", monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.command-label {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-command {
  min-height: 29px;
  flex: 0 0 auto;
  padding: 4px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.69rem;
}

.command-danger .copy-command {
  border-color: var(--danger);
  color: var(--danger-strong);
}

.copy-command:hover { border-color: var(--command-accent); }
.copy-command.copied { border-color: var(--safe); background: color-mix(in srgb, var(--safe) 12%, var(--panel)); color: var(--safe); }

.command-card pre {
  max-width: 100%;
  margin: 0;
  padding: 15px;
  overflow-x: auto;
  color: var(--code-ink);
  line-height: 1.65;
  white-space: pre;
  tab-size: 2;
  scrollbar-color: var(--line-strong) transparent;
}

.command-card code {
  font-size: 0.77rem;
}

.placeholder-token {
  padding: 1px 2px;
  border-radius: 3px;
  background: color-mix(in srgb, var(--warning) 18%, transparent);
  box-shadow: inset 0 -1px var(--warning);
  color: color-mix(in srgb, var(--warning) 82%, var(--ink));
  font-weight: 700;
}

.device-warning,
.danger-inline {
  padding: 10px 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--warning) 45%, var(--line));
  background: var(--warning-soft);
  color: var(--ink);
  font-size: 0.76rem;
}

.device-warning strong,
.danger-inline strong { color: var(--warning); }

.danger-inline {
  border-bottom-color: color-mix(in srgb, var(--danger) 45%, var(--line));
  background: var(--danger-soft);
}

.danger-inline strong { color: var(--danger-strong); }

.pre-run-checks {
  display: grid;
  gap: 3px;
  margin: 7px 0 0;
  padding: 0;
  list-style: none;
}

.pre-run-checks li::before {
  margin-right: 7px;
  color: var(--danger);
  content: "□";
  font-family: monospace;
}

.command-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 20px;
}

.command-legend span {
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.68rem;
}

.command-legend i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 5px;
  border-radius: 50%;
  background: currentColor;
}

.legend-inspect { color: var(--safe) !important; }
.legend-config { color: var(--config) !important; }
.legend-danger { color: var(--danger) !important; }
.legend-optional { color: var(--optional) !important; }
.legend-recovery { color: var(--recovery) !important; }

.game-workspace {
  margin: 20px 0 25px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-muted);
  overflow: hidden;
}

.game-toolbar {
  padding: 15px;
  border-bottom: 1px solid var(--line);
}

.game-toolbar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.game-toolbar-head h3 { margin: 0; font-size: 0.98rem; }
.result-count { color: var(--faint); font: 0.68rem "Cascadia Code", monospace; }

.game-filters {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
}

.filter-field {
  display: grid;
  gap: 4px;
  min-width: 0;
  color: var(--faint);
  font-size: 0.66rem;
}

.filter-field input,
.filter-field select {
  width: 100%;
  min-height: 38px;
  padding: 7px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.76rem;
}

.filter-actions {
  display: flex;
  align-items: end;
}

.filter-actions button {
  min-height: 38px;
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.76rem;
}

.game-table-wrap {
  overflow-x: auto;
  scrollbar-color: var(--line-strong) transparent;
}

.game-table {
  min-width: 880px;
  margin: 0;
}

.game-table th,
.game-table td { border-width: 0 0 1px; }
.game-table tbody:last-child tr:last-child td { border-bottom: 0; }

.game-expand {
  display: inline-grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--panel);
  color: var(--accent-strong);
}

.game-expand[aria-expanded="true"] { background: var(--accent-soft); }
.game-name { color: var(--ink-strong); font-weight: 700; }

.status-chip {
  display: inline-flex;
  padding: 2px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.65rem;
  white-space: nowrap;
}

.game-detail-row td {
  padding: 0;
  background: var(--panel-strong);
}

.game-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  padding: 15px 48px;
}

.game-detail h4 {
  margin: 0 0 5px;
  color: var(--ink-strong);
  font-size: 0.76rem;
}

.game-detail p,
.game-detail ul {
  margin: 0;
  padding-left: 17px;
  color: var(--muted);
  font-size: 0.74rem;
}

.game-detail p { padding-left: 0; }
.game-empty { padding: 26px !important; text-align: center; color: var(--muted); }

.section-tools {
  padding: 13px;
}

.section-tools > .toolbox-kicker {
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
}

.section-tools h2 {
  display: block;
  margin: 13px 0 11px;
  font-size: 1.08rem;
}

.section-tools h3 {
  margin: 16px 0 5px;
  color: var(--faint);
  font: 700 0.65rem "Cascadia Code", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-tools p,
.section-tools ul {
  margin: 0;
  color: var(--muted);
  font-size: 0.74rem;
}

.section-tools ul { padding-left: 17px; }
.section-tools li + li { margin-top: 3px; }

.progress-wrap { margin: 0 0 14px; }
.progress-wrap > span { display: block; margin-bottom: 6px; color: var(--faint); font-size: 0.68rem; }
.progress-wrap b { color: var(--accent-strong); font-family: "Cascadia Code", monospace; }

.progress-track {
  height: 5px;
  overflow: hidden;
  border-radius: 99px;
  background: var(--line);
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
}

.trouble-trigger,
.back-top {
  display: flex;
  width: 100%;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-top: 13px;
  border: 1px solid var(--accent);
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.74rem;
  text-decoration: none;
}

.trouble-trigger span:first-child {
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font: 700 0.65rem monospace;
}

.back-top {
  margin-top: 7px;
  border-color: var(--line);
  background: var(--panel-muted);
  color: var(--muted);
}

.workspace-dialog {
  width: min(680px, calc(100% - 28px));
  max-height: min(780px, calc(100dvh - 40px));
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--panel);
  color: var(--ink);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.6);
}

.workspace-dialog::backdrop {
  background: rgba(2, 7, 10, 0.75);
  backdrop-filter: blur(6px);
}

.dialog-shell {
  max-height: inherit;
  padding: 19px;
  overflow: auto;
}

.dialog-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.danger-head .eyebrow,
.danger-head h2 { color: var(--danger-strong); }

.icon-button {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-muted);
  color: var(--muted);
  font-size: 1.1rem;
}

.search-field {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 9px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--code-bg);
}

.search-field input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink-strong);
}

.search-status {
  margin: 10px 1px;
  color: var(--faint);
  font-size: 0.7rem;
}

.search-results {
  display: grid;
  gap: 5px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.search-result-button {
  display: grid;
  width: 100%;
  grid-template-columns: auto 1fr;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-muted);
  color: var(--ink);
  text-align: left;
}

.search-result-button:hover { border-color: var(--accent); }
.result-type { color: var(--accent-strong); font: 0.61rem "Cascadia Code", monospace; }
.result-copy strong { display: block; color: var(--ink-strong); font-size: 0.82rem; }
.result-copy span { display: block; margin-top: 2px; color: var(--muted); font-size: 0.72rem; line-height: 1.45; }
.result-copy mark { background: var(--warning-soft); color: var(--warning); }

.dialog-warning {
  padding: 13px 14px;
  border: 1px solid var(--danger);
  border-radius: 8px;
  background: var(--danger-soft);
}

.dialog-warning strong { color: var(--danger-strong); }
.dialog-warning p { margin: 4px 0 0; color: var(--muted); font-size: 0.82rem; }

.safety-checks {
  display: grid;
  gap: 7px;
  margin: 15px 0;
  padding: 0;
  list-style: none;
  color: var(--ink);
  font-size: 0.82rem;
}

.safety-checks li::before { margin-right: 8px; color: var(--danger); content: "□"; }

.confirm-check {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 8px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.79rem;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 15px;
}

.secondary-button,
.danger-button {
  min-height: 39px;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--panel-muted);
  color: var(--ink);
}

.danger-button {
  border-color: var(--danger);
  background: var(--danger-soft);
  color: var(--danger-strong);
  font-weight: 700;
}

.danger-button:disabled { cursor: not-allowed; opacity: 0.45; }

.trouble-shell > p {
  margin: -6px 0 14px;
  color: var(--muted);
  font-size: 0.82rem;
}

.symptom-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.symptom-button {
  min-height: 48px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-muted);
  color: var(--muted);
  text-align: left;
  font-size: 0.78rem;
}

.symptom-button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.decision-output {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid var(--line);
}

.decision-output:empty { display: none; }
.decision-output h3 { margin: 0 0 7px; font-size: 0.97rem; }
.decision-output ol { margin: 0; padding-left: 21px; }
.decision-output li { padding-left: 4px; color: var(--muted); font-size: 0.8rem; }
.decision-output li + li { margin-top: 8px; }
.decision-output a { display: inline-block; margin-top: 12px; font-size: 0.78rem; }

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 220;
  max-width: min(360px, calc(100% - 36px));
  padding: 10px 13px;
  border: 1px solid var(--safe);
  border-radius: 8px;
  background: var(--panel-strong);
  color: var(--safe);
  box-shadow: var(--shadow);
  font-size: 0.78rem;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 140ms ease, transform 140ms ease;
}

.toast.show { opacity: 1; transform: translateY(0); }

.noscript-note {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 200;
  max-width: 420px;
  padding: 10px 12px;
  border: 1px solid var(--warning);
  border-radius: 8px;
  background: var(--panel);
  color: var(--warning);
  font-size: 0.78rem;
}

@media (max-width: 1240px) {
  .layout-shell {
    grid-template-columns: 220px minmax(0, 850px);
  }

  .right-toolbox { display: none; }
}

@media (max-width: 920px) {
  :root { --header-height: 60px; }

  .site-header { padding-inline: 14px; }
  .brand small { display: none; }
  .search-trigger > span:nth-child(2),
  .search-trigger kbd { display: none; }

  .mobile-navigator {
    position: sticky;
    top: var(--header-height);
    z-index: 80;
    display: block;
    width: 100%;
    border-bottom: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
    backdrop-filter: blur(14px);
  }

  .mobile-navigator > summary {
    display: flex;
    min-height: 49px;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 7px 15px;
    list-style: none;
  }

  .mobile-navigator > summary::-webkit-details-marker { display: none; }
  .mobile-navigator > summary::after { margin-left: 5px; color: var(--accent-strong); content: "+"; font: 1rem monospace; }
  .mobile-navigator[open] > summary::after { content: "−"; }
  .mobile-navigator summary span:first-child { min-width: 0; }
  .mobile-navigator summary small,
  .mobile-navigator summary strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .mobile-navigator summary small { color: var(--faint); font: 0.6rem "Cascadia Code", monospace; }
  .mobile-navigator summary strong { color: var(--ink-strong); font-size: 0.78rem; }
  .mobile-progress { margin-left: auto; color: var(--accent-strong); font: 0.67rem "Cascadia Code", monospace; white-space: nowrap; }
  .mobile-navigator nav { max-height: min(58vh, 480px); overflow: auto; border-top: 1px solid var(--line); }
  .mobile-navigator .numbered-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3px; padding: 9px 13px 13px; }
  .mobile-navigator .numbered-nav li + li { margin-top: 0; }

  .layout-shell {
    display: block;
    width: min(100% - 24px, 850px);
    margin-top: 12px;
  }

  .left-toolbox { display: none; }
  .doc-page { padding: clamp(19px, 5vw, 38px); }
}

@media (max-width: 680px) {
  :root { font-size: 15px; line-height: 1.72; }
  .brand strong { font-size: 0.82rem; }
  .brand-mark { width: 34px; height: 34px; }
  .palette-switch button { min-width: 29px; }
  .layout-shell { width: calc(100% - 14px); margin-bottom: 36px; }
  .doc-page { padding: 18px 15px 26px; border-radius: 12px; }
  h1 { max-width: 18ch; font-size: clamp(1.9rem, 10vw, 2.7rem); }
  .article-meta { grid-template-columns: 1fr; }
  .workspace-intro { display: block; padding: 16px; }
  .workspace-status { display: inline-block; margin-top: 12px; }
  .cockpit-grid { grid-template-columns: 1fr; }
  .cockpit-panel { padding: 16px; }
  .cockpit-panel + .cockpit-panel { border-top: 1px solid var(--line); border-left: 0; }
  .workspace-actions { align-items: stretch; flex-direction: column; padding: 12px 16px; }
  .workspace-actions button { width: 100%; }
  .doc-page > section[id].path-match { margin-inline: -6px; padding-inline: 6px; }
  .section-pagination { grid-template-columns: 1fr; }
  .section-pagination a:last-child { text-align: left; }
  .operation-figure { margin-inline: -4px; }
  .command-card { margin-inline: -4px; }
  .command-card-header { flex-wrap: wrap; }
  .command-label { flex-basis: calc(100% - 90px); }
  .copy-command { margin-left: auto; }
  .game-filters { grid-template-columns: 1fr 1fr; }
  .game-detail { grid-template-columns: 1fr; padding: 14px 20px; }
  .symptom-grid { grid-template-columns: 1fr; }
  .workspace-dialog { width: calc(100% - 16px); max-height: calc(100dvh - 16px); }
  .dialog-shell { padding: 15px; }
  .mobile-navigator .numbered-nav { grid-template-columns: 1fr; }
  .search-trigger { min-width: 36px; justify-content: center; padding: 5px; }
  .palette-switch { display: none; }
}

@media (max-width: 390px) {
  .brand strong { max-width: 145px; }
  .game-filters { grid-template-columns: 1fr; }
  .dialog-actions { flex-direction: column-reverse; }
  .dialog-actions button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  :root { color-scheme: light; }
  body { background: #fff; color: #111; }
  body::before,
  .site-header,
  .left-toolbox,
  .right-toolbox,
  .mobile-navigator,
  .workspace-hub,
  .reading-rail,
  .section-pagination,
  .copy-command,
  .heading-anchor { display: none !important; }
  .layout-shell { display: block; width: 100%; margin: 0; }
  .doc-page { padding: 0; border: 0; box-shadow: none; background: #fff; }
  .doc-page > section[id] { break-inside: avoid; }
  a { color: #111; text-decoration: underline; }
  pre { white-space: pre-wrap !important; }
}