/* MarkupRight User Guide — one stylesheet for every page.
   Tokens follow the marketing site (services/site/css/style.css); the UI font is the app's own Inter. */

@font-face { font-family: "Inter"; font-weight: 400; font-style: normal; font-display: swap; src: url("../fonts/Inter-Regular.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 500; font-style: normal; font-display: swap; src: url("../fonts/Inter-Medium.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-style: normal; font-display: swap; src: url("../fonts/Inter-SemiBold.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 400; font-style: normal; font-display: swap; src: url("../fonts/JetBrainsMono-Regular.woff2") format("woff2"); }

:root {
  --ink: #192536;
  --ink-2: #2e3c52;
  --text: #3a4659;
  --muted: #677387;
  --brand: #0069f7;
  --brand-dark: #0052c4;
  --brand-tint: #e5effe;
  --paper: #ffffff;
  --sheet: #f4f6f9;
  --rule: #d7dee8;
  --rule-soft: #e7ecf2;
  --red: #e2372b;
  --red-tint: #fdeceb;
  --amber: #b86e00;
  --amber-tint: #fff4e0;
  --green: #13995a;
  --green-tint: #e6f5ed;
  --violet: #6b4fe0;
  --violet-tint: #efebfd;
  --yellow: #ffd43b;
  --code-bg: #f3f5f8;
  --shadow: 0 1px 2px rgba(25, 37, 54, .06), 0 8px 24px -12px rgba(25, 37, 54, .18);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --top: 60px;
  --side: 272px;
  --toc: 232px;
  --measure: 46rem;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --ink: #eef2f8; --ink-2: #d5dce8; --text: #c3ccda; --muted: #8d99ab;
  --brand: #4c94ff; --brand-dark: #78adff; --brand-tint: #16263f;
  --paper: #10161f; --sheet: #161e2a; --rule: #2a3546; --rule-soft: #212b3a;
  --red: #ff6b5f; --red-tint: #2c1716; --amber: #f0a43a; --amber-tint: #2b2112;
  --green: #3ccf87; --green-tint: #12261c; --violet: #a08cff; --violet-tint: #1e1a35;
  --code-bg: #0b1017; --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #eef2f8; --ink-2: #d5dce8; --text: #c3ccda; --muted: #8d99ab;
    --brand: #4c94ff; --brand-dark: #78adff; --brand-tint: #16263f;
    --paper: #10161f; --sheet: #161e2a; --rule: #2a3546; --rule-soft: #212b3a;
    --red: #ff6b5f; --red-tint: #2c1716; --amber: #f0a43a; --amber-tint: #2b2112;
    --green: #3ccf87; --green-tint: #12261c; --violet: #a08cff; --violet-tint: #1e1a35;
    --code-bg: #0b1017; --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-padding-top: calc(var(--top) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--text);
  font: 400 16px/1.65 var(--font); font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
::selection { background: color-mix(in srgb, var(--brand) 22%, transparent); }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--paper); padding: 8px 12px; border-radius: 6px; }
.skip:focus { left: 12px; }

/* ---------- Top bar ---------- */
.topbar {
  position: fixed; inset: 0 0 auto 0; height: calc(var(--top) + env(safe-area-inset-top, 0px)); z-index: 40;
  display: flex; align-items: center; gap: 16px;
  padding: env(safe-area-inset-top, 0px) max(20px, env(safe-area-inset-right, 0px)) 0 max(20px, env(safe-area-inset-left, 0px));
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--rule-soft);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand img { height: 26px; width: auto; display: block; }
.brand .logo-dark { display: none; }
:root[data-theme="dark"] .brand .logo-light { display: none; }
:root[data-theme="dark"] .brand .logo-dark { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .brand .logo-light { display: none; }
  :root:not([data-theme="light"]) .brand .logo-dark { display: block; }
}
.brand .guide { font-size: 14px; color: var(--muted); font-weight: 500; padding-left: 10px; border-left: 1px solid var(--rule); }
.search { position: relative; flex: 1; max-width: 460px; margin-left: auto; }
.search input {
  width: 100%; height: 38px; padding: 0 36px 0 38px; border-radius: 10px;
  border: 1px solid var(--rule); background: var(--sheet); color: var(--ink); font: inherit; font-size: 14px;
}
.search input:focus { outline: none; border-color: var(--brand); background: var(--paper); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 18%, transparent); }
.search .ico { position: absolute; left: 12px; top: 10px; width: 18px; height: 18px; color: var(--muted); }
.search .hint { position: absolute; right: 10px; top: 9px; font: 500 11px/18px var(--font); color: var(--muted); border: 1px solid var(--rule); border-radius: 5px; padding: 0 6px; }
.results {
  position: absolute; top: 44px; left: 0; right: 0; max-height: min(70vh, 520px); overflow: auto;
  background: var(--paper); border: 1px solid var(--rule); border-radius: 12px; box-shadow: var(--shadow); padding: 6px;
}
.results a { display: block; padding: 8px 10px; border-radius: 8px; color: var(--text); }
.results a:hover, .results a.active { background: var(--brand-tint); text-decoration: none; }
.results b { color: var(--ink); font-weight: 600; display: block; font-size: 14px; }
.results small { color: var(--muted); font-size: 12.5px; }
.results .empty { padding: 12px; color: var(--muted); font-size: 14px; }
.controls { display: flex; align-items: center; gap: 6px; }
.seg { display: inline-flex; border: 1px solid var(--rule); border-radius: 9px; overflow: hidden; }
.seg button {
  border: 0; background: transparent; color: var(--muted); font: 500 12.5px/1 var(--font);
  padding: 9px 10px; cursor: pointer;
}
.seg button[aria-pressed="true"] { background: var(--brand-tint); color: var(--brand); }
.iconbtn { border: 1px solid var(--rule); background: transparent; color: var(--muted); width: 36px; height: 34px; border-radius: 9px; cursor: pointer; display: inline-grid; place-items: center; }
.iconbtn:hover { color: var(--ink); }
.iconbtn .ico { width: 18px; height: 18px; }
.menu-toggle { display: none; }

/* ---------- Layout ---------- */
.layout { display: grid; grid-template-columns: var(--side) minmax(0, 1fr); padding-top: calc(var(--top) + env(safe-area-inset-top, 0px)); }
.sidebar {
  position: sticky; top: var(--top); height: calc(100vh - var(--top)); overflow: auto;
  padding: 22px 14px 40px 20px; border-right: 1px solid var(--rule-soft); background: var(--paper);
}
.sidebar h4 { margin: 18px 10px 6px; font: 600 11.5px/1.3 var(--font); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.sidebar h4:first-child { margin-top: 4px; }
.sidebar a {
  display: flex; align-items: center; gap: 10px; padding: 6px 10px; border-radius: 8px;
  color: var(--text); font-size: 14.5px; line-height: 1.35;
}
.sidebar a .ico { width: 17px; height: 17px; flex: none; color: var(--muted); }
.sidebar a:hover { background: var(--sheet); text-decoration: none; color: var(--ink); }
.sidebar a[aria-current="page"] { background: var(--brand-tint); color: var(--brand); font-weight: 600; }
.sidebar a[aria-current="page"] .ico { color: var(--brand); }
.sidebar .lvl { margin-left: auto; width: 7px; height: 7px; border-radius: 50%; flex: none; opacity: .85; }
.lvl.beginner { background: var(--green); } .lvl.intermediate { background: var(--brand); } .lvl.expert { background: var(--violet); }
.legend-dots { margin: 26px 10px 0; font-size: 12px; color: var(--muted); display: grid; gap: 4px; }
.legend-dots span { display: flex; align-items: center; gap: 8px; }
.legend-dots .lvl { width: 7px; height: 7px; border-radius: 50%; }

.page { display: grid; grid-template-columns: minmax(0, 1fr) var(--toc); gap: 40px; padding: 36px 40px 80px; max-width: 1240px; }
.page.no-toc { grid-template-columns: minmax(0, 1fr); }
.content { min-width: 0; }
/* Text keeps a comfortable line length; wide figures and tables use the whole column. */
.content > *, .power > * { max-width: var(--measure); }
.content > .wide, .power > .wide, .content > .pager, .content > .foot,
.content > .cards, .content > .paths, .content > .tools, .content > .table-wrap, .content > .gallery, .content > .related { max-width: none; }
.content > .power { max-width: calc(var(--measure) + 50px); }
body > main.content { max-width: var(--measure); margin: 0 auto; padding: 24px; }
.toc { position: sticky; top: calc(var(--top) + 28px); align-self: start; max-height: calc(100vh - var(--top) - 56px); overflow: auto; font-size: 13.5px; }
.toc h5 { margin: 0 0 10px; font: 600 11.5px/1.3 var(--font); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.toc a { display: block; padding: 4px 0 4px 12px; color: var(--muted); border-left: 2px solid var(--rule-soft); line-height: 1.4; }
.toc a:hover { color: var(--ink); text-decoration: none; }
.toc a.active { color: var(--brand); border-left-color: var(--brand); }
.toc .toc-sub { padding-left: 24px; font-size: 13px; }

/* ---------- Page header ---------- */
.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 14px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.crumbs a { color: var(--muted); }
.crumbs .sep { opacity: .6; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.25; letter-spacing: -.012em; text-wrap: balance; }
h1 { font-size: 2.35rem; font-weight: 600; margin: 0 0 12px; letter-spacing: -.022em; }
h2 { font-size: 1.55rem; font-weight: 600; margin: 3rem 0 .9rem; padding-top: .4rem; }
h3 { font-size: 1.16rem; font-weight: 600; margin: 2rem 0 .6rem; }
h4 { font-size: 1rem; font-weight: 600; margin: 1.4rem 0 .4rem; }
h2 .anchor, h3 .anchor { opacity: 0; margin-left: 8px; color: var(--muted); font-weight: 400; }
h2:hover .anchor, h3:hover .anchor { opacity: 1; }
.lead { font-size: 1.16rem; line-height: 1.6; color: var(--ink-2); margin: 0 0 18px; }
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 0 0 26px; font-size: 13px; color: var(--muted); }
.meta .dot { opacity: .5; }
p { margin: 0 0 1rem; }
ul, ol { padding-left: 1.4rem; margin: 0 0 1rem; }
li { margin: .3rem 0; }
li > ul, li > ol { margin: .3rem 0; }
hr { border: 0; border-top: 1px solid var(--rule-soft); margin: 2.5rem 0; }
strong, b { color: var(--ink); font-weight: 600; }
small { font-size: .85em; }

/* ---------- Level badges ---------- */
.level {
  display: inline-flex; align-items: center; gap: 6px; vertical-align: middle;
  font: 600 11.5px/1 var(--font); letter-spacing: .04em; text-transform: uppercase;
  padding: 5px 9px 5px 8px; border-radius: 999px; white-space: nowrap;
}
.level::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.level.beginner { color: var(--green); background: var(--green-tint); }
.level.intermediate { color: var(--brand); background: var(--brand-tint); }
.level.expert { color: var(--violet); background: var(--violet-tint); }
h2 .level, h3 .level { margin-left: 10px; position: relative; top: -2px; }

/* ---------- Inline UI vocabulary ---------- */
kbd, .kbd {
  display: inline-block; min-width: 1.6em; padding: 1px 6px; margin: 0 1px;
  font: 500 .82em/1.5 var(--font); color: var(--ink); text-align: center; white-space: nowrap;
  background: var(--paper); border: 1px solid var(--rule); border-bottom-width: 2px; border-radius: 6px;
}
.path {
  display: inline; padding: 1px 6px; border-radius: 6px; white-space: normal;
  background: var(--sheet); border: 1px solid var(--rule-soft); color: var(--ink); font-weight: 500; font-size: .94em;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.ui { color: var(--ink); font-weight: 600; }
.ui .ico, .path .ico { width: 1.05em; height: 1.05em; margin-right: 4px; vertical-align: -0.16em; color: var(--ink-2); }
code {
  font: .86em/1.5 var(--mono); background: var(--code-bg); color: var(--ink);
  padding: 1px 6px; border-radius: 5px; border: 1px solid var(--rule-soft); overflow-wrap: anywhere;
}
.ico { display: inline-block; width: 1.1em; height: 1.1em; vertical-align: -0.18em; flex: none; }
.ico svg { width: 100%; height: 100%; display: block; }
.mac-only, .win-only { }
:root[data-os="mac"] .win-only, :root:not([data-os="mac"]) .mac-only { display: none !important; }

/* ---------- At a glance ---------- */
.glance {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 1px;
  background: var(--rule-soft); border: 1px solid var(--rule-soft); border-radius: 14px; overflow: hidden; margin: 0 0 2rem;
}
.glance > div { background: var(--paper); padding: 14px 16px; font-size: 14.5px; }
.glance dt { font: 600 11.5px/1.3 var(--font); letter-spacing: .07em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.glance dt .ico { width: 14px; height: 14px; }
.glance dd { margin: 0; color: var(--ink-2); }

/* ---------- Figures ---------- */
figure { margin: 1.6rem 0 2rem; }
.shot .frame {
  position: relative; display: block; width: fit-content; max-width: 100%;
  border: 1px solid var(--rule); border-radius: 12px; overflow: hidden; background: var(--paper); box-shadow: var(--shadow);
}
.shot .frame img { display: block; cursor: zoom-in; }
.shot.center .frame { margin: 0 auto; }
.content > .shot.center, .power > .shot.center { margin-left: 0; margin-right: 0; }
.shot.bare .frame { box-shadow: none; }
.shot.strip .frame { border-radius: 8px; }
figcaption { font-size: 13.5px; color: var(--muted); margin-top: 10px; line-height: 1.5; }
figcaption b { color: var(--ink-2); }
.pin {
  position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%);
  width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
  font: 600 13px/1 var(--font); color: #fff; background: var(--brand);
  box-shadow: 0 0 0 3px rgba(255,255,255,.95), 0 2px 8px rgba(25,37,54,.35); pointer-events: none;
}
.box {
  position: absolute; left: var(--x); top: var(--y); width: var(--w); height: var(--h);
  border: 2.5px solid var(--brand); border-radius: 8px; box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 18%, transparent); pointer-events: none;
}
ol.pins { list-style: none; padding: 0; margin: -0.6rem 0 2rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 8px 24px; counter-reset: pin; }
ol.pins li { counter-increment: pin; position: relative; padding-left: 36px; margin: 0; font-size: 14.5px; line-height: 1.5; }
ol.pins li::before {
  content: counter(pin); position: absolute; left: 0; top: 0; width: 24px; height: 24px; border-radius: 50%;
  display: grid; place-items: center; background: var(--brand); color: #fff; font: 600 12.5px/1 var(--font);
}
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 18px; align-items: start; margin: 1.6rem 0 2rem; }
.gallery figure { margin: 0; }

/* ---------- Steps ---------- */
ol.steps { list-style: none; padding: 0; margin: 1rem 0 1.6rem; counter-reset: step; }
ol.steps > li { counter-increment: step; position: relative; padding: 0 0 1rem 46px; margin: 0; }
ol.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: -1px; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; font: 600 14px/1 var(--font); color: var(--brand); background: var(--brand-tint);
}
ol.steps > li::after { content: ""; position: absolute; left: 14.5px; top: 34px; bottom: 4px; width: 1px; background: var(--rule); }
ol.steps > li:last-child::after { display: none; }
ol.steps > li:last-child { padding-bottom: .2rem; }
.result { position: relative; margin: .5rem 0 0; padding-left: 22px; color: var(--green); font-size: 14.5px; }
.result::before { content: "→"; position: absolute; left: 0; top: 0; font-weight: 600; }
.task { border: 1px solid var(--rule-soft); border-radius: 14px; padding: 18px 20px 6px; margin: 1.4rem 0 2rem; background: var(--paper); }
.task > h3:first-child, .task > h4:first-child { margin-top: 0; }

/* ---------- Callouts ---------- */
.callout { position: relative; margin: 1.4rem 0; padding: 14px 16px 2px 50px; border-radius: 12px; border: 1px solid; font-size: 15px; }
.callout > .ico { position: absolute; left: 16px; top: 15px; width: 20px; height: 20px; }
.callout .title { display: block; font-weight: 600; margin-bottom: 4px; color: var(--ink); }
.callout.tip { background: var(--green-tint); border-color: color-mix(in srgb, var(--green) 30%, transparent); }
.callout.tip > .ico { color: var(--green); }
.callout.note { background: var(--brand-tint); border-color: color-mix(in srgb, var(--brand) 25%, transparent); }
.callout.note > .ico { color: var(--brand); }
.callout.caution { background: var(--amber-tint); border-color: color-mix(in srgb, var(--amber) 35%, transparent); }
.callout.caution > .ico { color: var(--amber); }
.callout.danger { background: var(--red-tint); border-color: color-mix(in srgb, var(--red) 35%, transparent); }
.callout.danger > .ico { color: var(--red); }
.callout.expert { background: var(--violet-tint); border-color: color-mix(in srgb, var(--violet) 30%, transparent); }
.callout.expert > .ico { color: var(--violet); }

/* ---------- Power-user section ---------- */
.power { margin: 3rem 0 1rem; padding: 4px 24px 12px; border-radius: 16px; border: 1px solid color-mix(in srgb, var(--violet) 28%, transparent); background: linear-gradient(180deg, var(--violet-tint), transparent 260px); }
.power > h2:first-child { margin-top: 1.4rem; }

/* ---------- Tool cards ---------- */
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(15.5rem, 1fr)); gap: 10px; margin: 1.2rem 0 2rem; }
.tool { display: grid; grid-template-columns: 40px 1fr; gap: 12px; padding: 12px 14px; border: 1px solid var(--rule-soft); border-radius: 12px; background: var(--paper); }
.tool > .ico { width: 40px; height: 40px; padding: 9px; border-radius: 10px; background: var(--sheet); color: var(--ink); }
.tool h4 { margin: 0 0 2px; font-size: 15px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tool h4 kbd { font-size: 11.5px; }
.tool p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.45; }

/* ---------- Cards (home, related) ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 14px; margin: 1.2rem 0 2.2rem; }
.card { display: grid; grid-template-columns: 38px 1fr; gap: 12px; padding: 16px; border: 1px solid var(--rule-soft); border-radius: 14px; color: var(--text); background: var(--paper); transition: border-color .15s, box-shadow .15s, transform .15s; }
.card:hover { text-decoration: none; border-color: color-mix(in srgb, var(--brand) 45%, var(--rule)); box-shadow: var(--shadow); transform: translateY(-1px); }
.card > .ico { width: 38px; height: 38px; padding: 9px; border-radius: 10px; background: var(--brand-tint); color: var(--brand); }
.card b { display: block; color: var(--ink); font-size: 15.5px; margin-bottom: 2px; }
.card small { display: block; color: var(--muted); font-size: 13.5px; line-height: 1.45; }
.card .level { margin-top: 8px; }
.related { margin-top: 3.4rem; padding-top: 1.6rem; border-top: 1px solid var(--rule-soft); }
.related h2 { margin-top: 0; font-size: 1.15rem; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 2.4rem; }
.pager a { padding: 14px 16px; border: 1px solid var(--rule-soft); border-radius: 12px; color: var(--text); }
.pager a:hover { border-color: var(--brand); text-decoration: none; }
.pager small { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.pager b { display: block; color: var(--ink); margin-top: 2px; }
.pager .next { text-align: right; grid-column: 2; }

/* ---------- Home hero and paths ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; margin-bottom: 2.4rem; }
.hero h1 { font-size: 2.7rem; }
.paths { display: grid; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); gap: 16px; margin: 1.4rem 0 2.6rem; }
.path-card { border: 1px solid var(--rule-soft); border-radius: 16px; padding: 20px 22px 10px; background: var(--paper); }
.path-card.beginner { background: linear-gradient(180deg, var(--green-tint), var(--paper) 180px); }
.path-card.expert { background: linear-gradient(180deg, var(--violet-tint), var(--paper) 180px); }
.path-card h3 { margin: 10px 0 6px; font-size: 1.2rem; }
.path-card ol { margin: 10px 0 12px; padding-left: 1.2rem; }
.path-card li { margin: 6px 0; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; margin: 1.2rem 0 2rem; border: 1px solid var(--rule-soft); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; font-variant-numeric: tabular-nums; }
th, td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--rule-soft); }
th { font-weight: 600; color: var(--ink); background: var(--sheet); font-size: 13px; letter-spacing: .02em; position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
td .ico { width: 18px; height: 18px; color: var(--ink-2); }
td.icon { width: 34px; padding-right: 0; }
td.keys { white-space: nowrap; }
.filter { width: 100%; max-width: 26rem; height: 40px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--rule); background: var(--paper); color: var(--ink); font: inherit; font-size: 14.5px; margin: .4rem 0 0; }
.filter:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 18%, transparent); }
.count { font-size: 13px; color: var(--muted); margin-left: 10px; }

/* ---------- Code ---------- */
pre.code { position: relative; margin: 1.2rem 0 1.8rem; padding: 16px 18px; border-radius: 12px; background: var(--code-bg); border: 1px solid var(--rule-soft); overflow: auto; }
pre.code code { background: none; border: 0; padding: 0; font-size: 13.5px; line-height: 1.65; color: var(--ink); white-space: pre; }
pre.code[data-lang]::before { content: attr(data-lang); position: absolute; top: 8px; right: 54px; font: 500 11px/1 var(--font); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.copy { position: absolute; top: 6px; right: 6px; border: 1px solid var(--rule); background: var(--paper); color: var(--muted); border-radius: 7px; font: 500 11.5px/1 var(--font); padding: 6px 8px; cursor: pointer; }
.copy:hover { color: var(--ink); }
.tok-c { color: var(--muted); }
.tok-s { color: var(--green); }
.tok-k { color: var(--violet); }

/* ---------- Definition lists (glossary, reference) ---------- */
dl.terms dt { font-weight: 600; color: var(--ink); margin-top: 1.1rem; }
dl.terms dd { margin: .2rem 0 0; }
.faq details { border: 1px solid var(--rule-soft); border-radius: 12px; padding: 0 16px; margin: 10px 0; background: var(--paper); }
.faq summary { cursor: pointer; font-weight: 600; color: var(--ink); padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details > *:not(summary) { margin-bottom: 14px; }

/* ---------- Diagram ---------- */
.diagram { margin: 1.6rem 0 2rem; padding: 18px; border: 1px solid var(--rule-soft); border-radius: 14px; background: var(--sheet); overflow-x: auto; }
.diagram svg { display: block; max-width: 100%; height: auto; margin: 0 auto; }
.diagram text { font-family: var(--font); }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 90; background: rgba(10, 14, 20, .82); display: grid; place-items: center; padding: 24px; cursor: zoom-out; }
.lightbox img { max-width: 96vw; max-height: 92vh; border-radius: 10px; box-shadow: 0 20px 60px rgba(0,0,0,.5); background: #fff; }
.lightbox[hidden] { display: none; }

/* ---------- Footer ---------- */
.foot { margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid var(--rule-soft); font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 8px 18px; }

/* ---------- Responsive ---------- */
@media (max-width: 1240px) {
  .page { grid-template-columns: minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 900px) {
  :root { --side: 0px; }
  .layout { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: fixed; top: var(--top); left: 0; width: 300px; max-width: 86vw; z-index: 35; transform: translateX(-102%); transition: transform .2s; box-shadow: var(--shadow); }
  body.nav-open .sidebar { transform: none; }
  .menu-toggle { display: inline-grid; }
  .brand .guide { display: none; }
  .page { padding: 24px 18px 64px; }
  h1 { font-size: 1.9rem; }
  .hero h1 { font-size: 2.1rem; }
  .seg { display: none; }
}
@media (max-width: 560px) {
  .pin { width: 20px; height: 20px; font-size: 11px; box-shadow: 0 0 0 2px rgba(255,255,255,.95), 0 1px 4px rgba(25,37,54,.35); }
  .search .hint { display: none; }
  .brand img { height: 22px; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

/* ---------- Print ---------- */
@media print {
  .topbar, .sidebar, .toc, .pager, .copy, .skip, .related { display: none !important; }
  .layout { display: block; padding: 0; }
  .page { display: block; padding: 0; }
  .content { max-width: none; }
  body { font-size: 11pt; color: #000; background: #fff; }
  a { color: #000; }
  .shot .frame, .callout, .glance, .task, .tool, .card { box-shadow: none; break-inside: avoid; }
  h2, h3 { break-after: avoid; }
}