/* Claude Code: a continuous workflow atlas, not a fixed-sidebar handbook. */
:root {
  --bg: #fff; --panel: #f6f7f8; --panel2: #eaf0ee; --ink: #202522;
  --muted: #626c66; --line: #dce2dd; --cyan: #39705d; --mint: #39705d;
  --amber: #816339; --red: #965a56; --violet: #6c6590; --blue: #4e6a87;
  --sans: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", "Cascadia Code", "Liberation Mono", monospace;
  --max: var(--lm-canvas-content-width);
}
html.dark { --bg: #131715; --panel: #1b211d; --panel2: #26322b; --ink: #e4ebe6; --muted: #a4b2a9; --line: #344139; --cyan: #a4c7b3; --mint: #a4c7b3; --amber: #d6b984; --red: #d39b93; --violet: #b8afd9; --blue: #9ebbd5; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.8 var(--sans); }
::selection { background: var(--panel2); }
button, input { font: inherit; color: inherit; }
a { color: inherit; }
button { cursor: pointer; }
:is(a, button, input, summary):focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.shell { width: min(var(--max), calc(100% - 2 * var(--lm-page-gutter))); margin-inline: auto; }
.wrap { width: 100%; margin-inline: auto; }
.progress { position: fixed; left: 0; width: 0; background: var(--cyan); }
.atlas-nav { position: sticky; z-index: 40; padding: 0; border-bottom: 1px solid var(--line); background: var(--lm-glass-top); backdrop-filter: var(--lm-glass-filter); -webkit-backdrop-filter: var(--lm-glass-filter); }
.atlas-nav-inner { max-width: var(--max); margin: auto; display: flex; gap: 28px; align-items: center; min-height: 54px; }
.atlas-name { color: var(--muted); font: 11px var(--mono); letter-spacing: .12em; margin-right: auto; }
.phase-nav { display: flex; gap: 24px; }
.phase-nav a { text-decoration: none; color: var(--muted); font-size: 13px; padding-block: 14px; }
.phase-nav a:hover { color: var(--ink); }
.atlas-contents { position: relative; flex: none; }
.atlas-contents summary { cursor: pointer; color: var(--ink); font-size: 13px; padding: 12px 0; }
.atlas-contents[open] summary { color: var(--cyan); }
.nav { position: absolute; right: 0; top: calc(100% + 6px); width: 300px; max-height: min(65vh, 560px); overflow: auto; padding: 12px; background: var(--bg); border: 1px solid var(--line); box-shadow: var(--lm-glass-shadow); }
.nav a { display: grid; grid-template-columns: 28px 1fr; gap: 8px; padding: 8px 10px; text-decoration: none; font-size: 13px; color: var(--muted); }
.nav a:is(:hover, .active) { color: var(--ink); background: var(--panel2); }
.nav i { font: normal 11px/1.9 var(--mono); color: var(--cyan); }
.main { margin: 0; min-width: 0; }
.hero { padding: 74px 0 58px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: start; }
.kicker, .label { font: 600 11px/1.8 var(--mono); color: var(--cyan); letter-spacing: .12em; }
.hero h1 { margin: 22px 0 24px; font-size: clamp(38px, 4.6vw, 66px); line-height: 1.12; letter-spacing: -.045em; font-weight: 600; }
.hero h1 span { display: block; font-size: .62em; color: var(--muted); margin-top: 14px; letter-spacing: -.02em; }
.thesis { margin: 0 0 12px; font-size: 20px; font-weight: 600; }
.lead { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.85; max-width: 620px; }
.hero-start { display: inline-flex; align-items: center; gap: 30px; text-decoration: none; border-bottom: 1px solid var(--cyan); padding: 10px 0 7px; margin-top: 20px; font-size: 14px; color: var(--cyan); }
.console { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); overflow: hidden; }
.console-head { display: flex; align-items: center; gap: 6px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.console-head > small { margin-left: auto; font: 10px var(--mono); color: var(--muted); letter-spacing: .12em; }
.dot { display: block; width: 8px; height: 8px; border-radius: 50%; background: #ff6058; }
.dot:nth-child(2) { background: #febc2e; }.dot:nth-child(3) { background: #28c840; }
.console-body { padding: 24px; font-size: 13px; }
.console-task { padding-bottom: 16px; border-bottom: 1px solid var(--line); font-family: var(--mono); }
.prompt { color: var(--cyan); }
.run-trace { list-style: none; padding: 18px 0 0; margin: 0; counter-reset: trace; }
.run-trace li { position: relative; padding: 8px 0 9px 36px; border-left: 1px solid var(--line); margin-left: 10px; }
.run-trace li::before { counter-increment: trace; content: counter(trace, decimal-leading-zero); position: absolute; left: -10px; top: 10px; font: 10px/1.5 var(--mono); color: var(--cyan); background: var(--panel); }
.run-trace li:last-child { border-left-color: transparent; }
.trace-result { margin-top: 14px; padding: 12px 0 0; border-top: 1px solid var(--line); color: var(--cyan); font-size: 12px; }
.stats { display: flex; flex-wrap: wrap; gap: 14px 24px; margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line); }
.stat { display: flex; align-items: baseline; gap: 7px; }
.stat b { font: 500 17px var(--mono); }.stat span { font-size: 11px; color: var(--muted); }
.source-note { margin: 16px 0 0; font: 10px/1.8 var(--mono); color: var(--muted); }
.main > section { padding: 70px 0; border-bottom: 1px solid var(--line); }
.demo-page :is(section, .hero) { scroll-margin-top: calc(var(--header-height) + 76px); }
.section-head { display: grid; grid-template-columns: 132px 1fr; gap: 24px; margin-bottom: 30px; }
.no { font: 11px/1.8 var(--mono); color: var(--cyan); padding-top: 6px; }
.section-head h2 { margin: 0 0 10px; font-size: clamp(25px, 2.5vw, 35px); line-height: 1.4; letter-spacing: -.025em; font-weight: 600; }
.section-head p { margin: 0; color: var(--muted); max-width: 820px; font-size: 15px; }
.callout { padding: 18px 24px; border-left: 2px solid var(--cyan); background: var(--panel); color: var(--muted); font-size: 14px; }.callout b { color: var(--ink); }.callout.warn { border-left-color: var(--amber); }
.fine { font-size: 12px; color: var(--muted); }
.grid { display: grid; gap: 24px; }.g2 { grid-template-columns: repeat(2,minmax(0,1fr)); }.g3 { grid-template-columns: repeat(3,minmax(0,1fr)); }.g4 { grid-template-columns: repeat(4,minmax(0,1fr)); }
.card { padding: 22px 0; border-top: 1px solid var(--line); min-width: 0; }
.card h3 { margin: 0 0 8px; font-size: 17px; font-weight: 600; }.card p { margin: 0; color: var(--muted); font-size: 14px; }
.tag { display: inline-block; padding: 0 0 8px; font: 11px var(--mono); letter-spacing: .05em; color: var(--cyan); }.tag.mint { color: var(--mint); }.tag.amber { color: var(--amber); }.tag.violet { color: var(--violet); }
.arch { display: grid; grid-template-columns: 1fr 44px 1.2fr; gap: 12px; align-items: stretch; }
.arch-col { display: grid; gap: 10px; }.node { padding: 20px; border: 1px solid var(--line); background: var(--bg); cursor: pointer; text-align: left; border-radius: 6px; min-width: 0; }.node:is(:hover,.active) { border-color: var(--cyan); background: var(--panel2); }.node strong { display: block; }.node small { color: var(--muted); overflow-wrap: anywhere; }.spine { display: grid; place-items: center; color: var(--cyan); pointer-events: none; }.core { display: grid; gap: 12px; padding: 20px; border: 1px solid var(--cyan); border-radius: 8px; background: var(--panel); min-width: 0; }
.detail { margin-top: 16px; min-height: 110px; padding: 20px 24px; border-left: 2px solid var(--cyan); background: var(--panel); font-size: 14px; }.detail b { color: var(--cyan); }
.timeline { display: grid; grid-template-columns: repeat(8,minmax(112px,1fr)); gap: 8px; overflow-x: auto; padding: 4px 4px 16px; }.step { min-width: 112px; padding: 18px 12px; border: 1px solid var(--line); border-top: 3px solid var(--line); background: var(--bg); text-align: left; position: relative; }.step:is(.active,:hover) { border-color: var(--cyan); background: var(--panel2); }.step em { display: block; font: normal 11px var(--mono); color: var(--cyan); margin-bottom: 8px; }.step strong { font-size: 13px; }.step-detail { margin-top: 4px; padding: 24px; background: var(--panel); border-left: 2px solid var(--cyan); font-size: 15px; }
.flow { display: flex; align-items: stretch; gap: 16px; overflow-x: auto; padding: 8px 2px 16px; }.flow .box { flex: 1; min-width: 135px; padding: 16px; border: 1px solid var(--line); background: var(--panel); position: relative; }.flow .box:not(:last-child)::after { content: '→'; position: absolute; right: -18px; top: 35%; color: var(--cyan); }.flow .box b { display: block; font-size: 13px; }.flow .box small { color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }th,td { padding: 14px; text-align: left; vertical-align: top; border: 1px solid var(--line); overflow-wrap: anywhere; }th { color: var(--ink); background: var(--panel); font-weight: 600; }td { color: var(--muted); }
.tabs,.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }.tab,.filter { padding: 9px 14px; border: 1px solid var(--line); background: transparent; cursor: pointer; font-size: 13px; }.tab:is(.active,:hover),.filter:is(.active,:hover) { border-color: var(--cyan); background: var(--panel2); color: var(--cyan); }.tab-panel { display: none; }.tab-panel.active { display: block; }
.memory-map { display: grid; grid-template-columns: repeat(7,minmax(130px,1fr)); gap: 8px; overflow-x: auto; padding: 4px 4px 12px; }.mem { min-width: 130px; padding: 16px 13px; border: 1px solid var(--line); background: var(--bg); cursor: pointer; text-align: left; }.mem:is(:hover,.active) { border-color: var(--violet); background: var(--panel); box-shadow: inset 0 -2px var(--violet); }.mem b { display: block; font-size: 14px; }.mem small { color: var(--muted); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }.gate { padding: 24px; border: 1px solid var(--line); background: var(--panel); }.gate-title { display: flex; justify-content: space-between; gap: 10px; align-items: center; margin-bottom: 16px; }.gate ol { margin: 0; padding-left: 22px; color: var(--muted); }.gate li { padding: 5px 0; }.gate code { color: var(--amber); }
.layers { display: grid; }.layer { display: grid; grid-template-columns: 170px 1fr auto; gap: 20px; align-items: baseline; padding: 20px 0; border-bottom: 1px solid var(--line); }.layer span { font: 13px var(--mono); color: var(--cyan); }.layer p { margin: 0; color: var(--muted); font-size: 14px; }.layer i { font: normal 11px var(--mono); color: var(--muted); }
.scenario { display: grid; grid-template-columns: 260px 1fr; gap: 24px; }.scenario-list { display: grid; }.scene-btn { padding: 14px; text-align: left; border: 0; border-bottom: 1px solid var(--line); border-left: 2px solid transparent; background: var(--bg); cursor: pointer; font-size: 14px; }.scene-btn:is(.active,:hover) { border-left-color: var(--amber); color: var(--amber); background: var(--panel); }.scene-detail { padding: 28px; border-top: 2px solid var(--amber); background: var(--panel); }.scene-detail h3 { margin-top: 0; }.scene-detail ul { color: var(--muted); }
.search { flex: 1; min-width: min(220px,100%); padding: 11px 14px; color: var(--ink); background: var(--bg); border: 1px solid var(--line); }.atlas { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0 28px; }.module { padding: 22px 0; border-top: 1px solid var(--line); }.module.hide { display: none; }.module .mno { font: 11px var(--mono); color: var(--cyan); }.module h3 { margin: 6px 0; font-size: 16px; }.module p { margin: 0; color: var(--muted); font-size: 13px; }.module b { font-weight: 500; color: var(--ink); }
.takeaways { counter-reset: take; }.take { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }.take::before { counter-increment: take; content: counter(take,decimal-leading-zero); font: 17px var(--mono); color: var(--cyan); }.take h3 { margin: 0 0 6px; font-size: 17px; }.take p { margin: 0; color: var(--muted); font-size: 14px; }.source-note { margin: 2rem 0 0; color: var(--muted); font-size: 12px; }code { font-family: var(--mono); color: var(--ink); overflow-wrap: anywhere; }.source-link { color: var(--cyan); text-underline-offset: 4px; }
@media (max-width: 1050px) { .hero-grid { gap: 32px; }.g4 { grid-template-columns: repeat(2,minmax(0,1fr)); }.section-head { grid-template-columns: 110px 1fr; }.atlas-name { display: none; }.phase-nav { margin-right: auto; } }
@media (max-width: 780px) { .atlas-nav-inner { gap: 20px; }.phase-nav { gap: 18px; overflow: auto; white-space: nowrap; }.phase-nav a { font-size: 12px; }.hero { padding: 42px 0; }.hero-grid { grid-template-columns: 1fr; gap: 28px; }.hero h1 { font-size: 43px; }.stats { margin-top: 24px; }.main > section { padding: 48px 0; }.section-head { grid-template-columns: 1fr; gap: 8px; }.g2,.g3,.g4,.split,.atlas,.scenario { grid-template-columns: 1fr; }.arch { grid-template-columns: 1fr; }.spine { min-height: 20px; transform: rotate(90deg); }.layer { grid-template-columns: 1fr; gap: 8px; }.card { padding: 18px 0; }.nav { width: min(300px,calc(100vw - 2 * var(--lm-page-gutter))); }.scenario-list { grid-template-columns: repeat(2,minmax(0,1fr)); }.timeline { grid-template-columns: repeat(8,134px); }.memory-map { grid-template-columns: repeat(7,146px); }.take { grid-template-columns: 32px 1fr; }.console-body { padding: 20px; } }
@media print { .atlas-nav,.reading-shell-header,.progress { display: none !important; }.tab-panel { display: block; }.main > section { break-inside: auto; }.hero-grid { grid-template-columns: 1fr; } }