/* Milton Coder Onboarding Guide — clean light document style
   Inspired by the coder.com product UI: indigo primary, neutral paper, generous type. */

:root {
  /* Palette — original Milton (not Coder.com brand) */
  --ink: #15161A;
  --ink-soft: #3B3D44;
  --ink-mute: #6B6E77;
  --ink-faint: #9598A0;
  --rule: #E6E4DE;
  --rule-soft: #EFEEE9;
  --paper: #FAF9F5;
  --paper-2: #F4F2EC;
  --card: #FFFFFF;

  --primary: #6B47ED;
  --primary-deep: #4B2BC8;
  --primary-soft: #EDE7FE;
  --primary-tint: #F6F2FF;
  --ring: rgba(107, 71, 237, .18);

  --warn-bg: #FFF6E5;
  --warn-fg: #8A5300;
  --warn-rule: #F2D49A;

  --tip-bg: #E8F5EF;
  --tip-fg: #0E6B53;
  --tip-rule: #B7E0CE;

  --info-bg: #EDE9FE;
  --info-fg: #4B2BC8;
  --info-rule: #C9BCF7;

  --code-bg: #14151B;
  --code-fg: #E6E2F4;
  --code-mute: #6B6F84;
  --code-accent: #B6A6FF;

  --shadow-sm: 0 1px 2px rgba(20, 18, 36, .04);
  --shadow-md: 0 4px 18px -8px rgba(20, 18, 36, .12), 0 1px 3px rgba(20, 18, 36, .04);
  --shadow-lg: 0 18px 48px -22px rgba(20, 18, 36, .25), 0 2px 6px rgba(20, 18, 36, .04);

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;

  /* Type */
  --f-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --f-serif: "Source Serif 4", "Source Serif Pro", "Iowan Old Style", "Apple Garamond", Georgia, serif;
  --f-mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* CJK font tweaks */
:root[lang="zh-Hans"], :root[lang="zh-Hant"] {
  --f-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", ui-sans-serif, system-ui, sans-serif;
}
:root[lang="zh-Hant"] {
  --f-sans: "Inter", "PingFang TC", "Microsoft JhengHei", "Hiragino Sans CNS", "Noto Sans CJK TC", ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--f-sans);
  background: var(--paper);
  color: var(--ink);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
  font-size: 15.5px;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--primary-soft); color: var(--ink); }

a { color: var(--primary-deep); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--primary); }

code.ic, code {
  font-family: var(--f-mono);
  font-size: .88em;
  background: var(--rule-soft);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--rule);
  color: var(--ink);
}

/* ---------- Header ---------- */
.page-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 249, 245, .92);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--rule);
}
.page-head-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--paper);
  display: grid; place-items: center;
  box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.brand-sub {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: .02em;
}

/* Lang toggle */
.lang { display: flex; align-items: center; gap: 12px; }
.lang-label {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.lang-segments {
  display: inline-flex;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 3px;
  box-shadow: var(--shadow-sm);
}
.lang-seg {
  appearance: none;
  border: 0;
  background: transparent;
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: 12.5px;
  color: var(--ink-mute);
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all .15s ease;
  min-width: 58px;
  white-space: nowrap;
}
.lang-seg-label { white-space: nowrap; }
.lang-seg:hover { color: var(--ink); }
.lang-seg.is-on {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 1px 2px rgba(0,0,0,.08);
}

/* ---------- Hero ---------- */
.hero {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 32px 28px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.badge {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .04em;
  padding: 5px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.hero-time, .hero-aud { white-space: nowrap; }
.hero-time {
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--ink-soft);
}
.hero-aud {
  font-size: 13px;
  color: var(--ink-mute);
}
.hero-title {
  font-family: var(--f-serif);
  font-weight: 500;
  font-size: clamp(36px, 4.6vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 18px;
  color: var(--ink);
  text-wrap: balance;
}
.hero-lede {
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 0 28px;
}
.hero-progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-left: 2px solid var(--rule);
  padding-left: 16px;
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--ink);
  padding: 7px 12px 7px 0;
  border-radius: var(--r-md);
  transition: all .15s ease;
  margin-left: -2px;
  border-left: 2px solid transparent;
  padding-left: 14px;
}
.hero-pill:hover {
  border-left-color: var(--primary);
  color: var(--primary-deep);
}
.hero-pill-n {
  font-family: var(--f-mono);
  font-size: 11.5px;
  color: var(--ink-faint);
  letter-spacing: .04em;
}
.hero-pill-l {
  font-weight: 500;
  font-size: 14.5px;
}

/* ---------- Diagram ---------- */
.diagram {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-xl);
  padding: 24px;
  box-shadow: var(--shadow-md);
}
.diagram-title {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 14px;
}
.diagram-svg { width: 100%; height: auto; }

.diagram-svg .zone-laptop {
  fill: var(--rule-soft);
  stroke: var(--rule);
  stroke-dasharray: 4 4;
}
.diagram-svg .zone-cloud {
  fill: var(--primary-tint);
  stroke: #DAD0F8;
  stroke-dasharray: 4 4;
}
.diagram-svg .zone-label {
  fill: var(--ink-mute);
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.diagram-svg .node {
  fill: var(--card);
  stroke: var(--rule);
  stroke-width: 1;
}
.diagram-svg .node-you { stroke: #C9C6BC; }
.diagram-svg .node-proxy { fill: #FFF; stroke: var(--primary); stroke-width: 1.4; }
.diagram-svg .node-ec2-frame { fill: #FFF; stroke: var(--primary-deep); stroke-width: 1.4; stroke-dasharray: 0; }
.diagram-svg .node-claude { fill: var(--primary); stroke: var(--primary); }
.diagram-svg .node-claude .node-title, .diagram-svg .node-claude .node-sub { fill: #fff; }
.diagram-svg .node-ebs { fill: var(--primary-soft); stroke: var(--primary); }

.diagram-svg .node-title {
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: 13px;
  fill: var(--ink);
  text-anchor: middle;
}
.diagram-svg .node-sub {
  font-family: var(--f-sans);
  font-size: 11px;
  fill: var(--ink-mute);
  text-anchor: middle;
}
.diagram-svg .node-frame-label {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  fill: var(--primary-deep);
}
.diagram-svg .arrow {
  color: var(--ink-mute);
  stroke: currentColor;
  stroke-width: 1.4;
  fill: none;
}
.diagram-svg .arrow-label {
  font-family: var(--f-mono);
  font-size: 10.5px;
  fill: var(--ink-mute);
  text-anchor: middle;
}
.diagram-caption {
  font-size: 12.5px;
  color: var(--ink-mute);
  margin: 14px 0 0;
  line-height: 1.5;
}

/* ---------- Page grid ---------- */
.page-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 32px 96px;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 84px;
  align-self: start;
}
.toc-label {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 14px;
  padding: 0 12px;
}
.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
  border-left: 1px solid var(--rule);
}
.toc-list li {
  position: relative;
}
.toc-list li a {
  display: block;
  padding: 6px 12px;
  text-decoration: none;
  font-size: 13.5px;
  color: var(--ink-mute);
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: all .15s ease;
}
.toc-list li a:hover { color: var(--ink); }
.toc-list li.is-active a {
  color: var(--primary-deep);
  border-left-color: var(--primary);
  font-weight: 600;
}

/* ---------- Atoms ---------- */
.kicker {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.step-num {
  display: inline-grid;
  place-items: center;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 600;
}

/* ---------- Step blocks ---------- */
.main { min-width: 0; }

.step, .block {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-xl);
  padding: 36px 40px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 92px;
}

.step-head {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 22px;
  margin-bottom: 22px;
}
.step-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.step-time {
  font-family: var(--f-mono);
  font-size: 11.5px;
  color: var(--ink-faint);
  margin-left: auto;
  background: var(--rule-soft);
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.step-meta .kicker { white-space: nowrap; }
.step-title {
  font-family: var(--f-serif);
  font-weight: 500;
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--ink);
  text-wrap: balance;
}
.step-why {
  font-size: 15.5px;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.55;
  max-width: 60ch;
}

.step-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  counter-reset: stepc;
  display: grid;
  gap: 14px;
}
.step-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 16px;
  align-items: start;
  padding: 14px 0;
  border-top: 1px dashed var(--rule);
}
.step-item:first-child { border-top: 0; padding-top: 0; }

.step-bullet {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--rule);
  display: grid; place-items: center;
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-mute);
  margin-top: 1px;
}
.step-item-body h4 {
  font-size: 15.5px;
  font-weight: 600;
  margin: 0 0 4px;
  color: var(--ink);
  letter-spacing: -.005em;
}
.step-item-body p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* Block-style sections (daily, stop, etc.) */
.block-head { margin-bottom: 20px; }
.block-head h2 {
  font-family: var(--f-serif);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 6px 0 8px;
  color: var(--ink);
  text-wrap: balance;
}
.block-lede {
  font-size: 15.5px;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.55;
  max-width: 64ch;
}

/* ---------- Callouts ---------- */
.callout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  border-radius: var(--r-md);
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.55;
  border: 1px solid;
}
.callout-tag {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  align-self: start;
  margin-top: 2px;
}

.callout-warn { background: var(--warn-bg); color: var(--warn-fg); border-color: var(--warn-rule); }
.callout-warn .callout-tag { background: var(--warn-fg); color: var(--warn-bg); }

.callout-tip { background: var(--tip-bg); color: var(--tip-fg); border-color: var(--tip-rule); }
.callout-tip .callout-tag { background: var(--tip-fg); color: var(--tip-bg); }

.callout-info { background: var(--info-bg); color: var(--info-fg); border-color: var(--info-rule); }
.callout-info .callout-tag { background: var(--info-fg); color: var(--info-bg); }

.callout-body { color: inherit; }

/* ---------- Cmd ---------- */
.cmd {
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: var(--r-md);
  padding: 14px 16px;
  margin: 14px 0;
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
  border: 1px solid #1F212A;
  box-shadow: 0 1px 0 rgba(255,255,255,.04) inset;
}
.cmd-line { display: grid; grid-template-columns: 28px 18px 1fr; align-items: baseline; }
.cmd-gutter { color: var(--code-mute); user-select: none; font-size: 11.5px; }
.cmd-prompt { color: var(--code-accent); }
.cmd-text { color: var(--code-fg); white-space: pre; }
/* Cheatsheet plain-English prompts can wrap so long sentences don't overflow */
.cheat .cmd-text { white-space: pre-wrap; word-break: break-word; }

/* ---------- Screenshot slots ---------- */
.ss-figure {
  margin: 22px 0 0;
  padding: 0;
  display: block;
  --aspect: 16/10;
}
.ss-figure image-slot {
  display: block;
  width: 100%;
  aspect-ratio: var(--aspect);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  border: 1.5px dashed var(--rule);
  outline: none;
}
/* When a real screenshot is loaded, give the slot a soft cream mat instead of
   the dashed placeholder frame. The slot keeps its aspect-ratio so layout is
   stable; with fit="contain" any extra space becomes intentional matting,
   not awkward empty bands. */
.ss-figure.ss-has-image image-slot {
  background: var(--paper-2);
  border: 1px solid color-mix(in oklab, var(--rule) 60%, transparent);
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(20, 20, 28, 0.04);
}
.ss-figure image-slot::part(placeholder) { color: var(--ink-mute); }

/* Side-by-side screenshot pair */
.ss-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 22px 0 0;
  align-items: stretch;
}
.ss-pair .ss-figure { margin-top: 0; display: flex; flex-direction: column; }
.ss-pair .ss-figure image-slot { flex: 1; }
@media (max-width: 720px) {
  .ss-pair { grid-template-columns: 1fr; }
}

.ss-caption {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--ink-mute);
}
.ss-marker {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--paper);
  padding: 3px 8px;
  border-radius: 4px;
}
.ss-label { color: var(--ink-soft); font-weight: 500; }
.ss-hint { color: var(--ink-faint); }

/* ---------- Path tabs (Claude step A/B) ---------- */
.path-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 20px 0 18px;
}
.path-tab {
  appearance: none;
  border: 1.5px solid var(--rule);
  background: var(--paper);
  border-radius: var(--r-md);
  padding: 16px 18px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: all .15s ease;
  font-family: inherit;
  color: var(--ink);
}
.path-tab:hover {
  border-color: var(--ink-mute);
  background: var(--card);
}
.path-tab.is-on {
  border-color: var(--primary);
  background: var(--primary-tint);
  box-shadow: 0 0 0 4px var(--ring);
}
.path-tab-letter {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  display: grid; place-items: center;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 14px;
}
.path-tab.is-on .path-tab-letter {
  background: var(--primary);
}
.path-tab-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}
.path-panel {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 24px 26px;
  margin-bottom: 18px;
}
.path-note {
  margin: 0 0 16px;
  padding: 0 0 14px;
  border-bottom: 1px dashed var(--rule);
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.trouble-mini {
  margin-top: 16px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--primary);
  border-radius: var(--r-md);
  padding: 14px 18px;
}
.trouble-mini-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.trouble-mini .cmd { margin: 8px 0 0; }

/* ---------- Daily / ways ---------- */
.ways {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 4px 0 24px;
}
.way {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 22px 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.way-num {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.way-name {
  font-family: var(--f-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-deep);
}
.way-role {
  font-size: 12px;
  color: var(--ink-mute);
  margin: 2px 0 10px;
}
.way-desc {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.55;
}

.git-config {
  background: var(--paper);
  border-top: 1px solid var(--rule);
  padding-top: 22px;
}
.git-config h4 {
  font-size: 15.5px;
  font-weight: 600;
  margin: 0 0 4px;
  color: var(--ink);
}
.git-config p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ---------- Stop flow ---------- */
.stop-flow {
  display: flex;
  align-items: stretch;
  gap: 8px;
  flex-wrap: wrap;
  margin: 20px 0 24px;
}
.stop-node {
  flex: 1 1 0;
  min-width: 130px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stop-node-i {
  font-family: var(--f-mono);
  font-size: 10.5px;
  color: var(--ink-faint);
  letter-spacing: .12em;
}
.stop-node-l {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}
.stop-node.is-running { border-color: var(--tip-rule); background: var(--tip-bg); }
.stop-node.is-running .stop-node-l { color: var(--tip-fg); }
.stop-node.is-stopped { border-color: var(--rule); background: var(--rule-soft); }
.stop-node.is-stopped .stop-node-l { color: var(--ink-mute); }
.stop-node.is-resumed { border-color: var(--primary); background: var(--primary-tint); }
.stop-node.is-resumed .stop-node-l { color: var(--primary-deep); }

.stop-arrow {
  display: grid; place-items: center;
  color: var(--ink-faint);
  font-size: 18px;
  padding: 0 2px;
}

.bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
}
.bullets li {
  position: relative;
  padding: 8px 0 8px 22px;
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.6;
  border-top: 1px dashed var(--rule);
}
.bullets li:first-child { border-top: 0; }
.bullets li::before {
  content: "";
  position: absolute;
  left: 4px; top: 16px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

/* ---------- Table ---------- */
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-top: 8px;
}
.tbl th {
  text-align: left;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1.5px solid var(--rule);
  background: var(--paper);
}
.tbl td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
  color: var(--ink-soft);
  line-height: 1.55;
}
.tbl tr:hover td { background: var(--paper); }
.tbl td:first-child { color: var(--ink); font-weight: 500; width: 36%; }

/* ---------- Don'ts ---------- */
.donts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.dont {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 16px 18px;
}
.dont-x {
  width: 26px; height: 26px;
  border-radius: 6px;
  background: #FCEEEE;
  color: #B23A3A;
  display: grid; place-items: center;
  font-weight: 700;
  font-size: 14px;
  border: 1px solid #F0D2D2;
}
.dont h4 {
  margin: 0 0 4px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
}
.dont p {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.55;
}

/* ---------- Contacts ---------- */
.contacts-block { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.contacts-block .kicker { color: rgba(250,249,245,.55); }
.contacts-block h2 { color: var(--paper); }
.contacts-block .block-lede { color: rgba(250,249,245,.7); }
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  margin: 18px 0 4px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 10px;
  background: rgba(255,255,255,.04);
  width: fit-content;
  max-width: 100%;
}
.contact-card-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.contact-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 12px;
  color: rgba(250,249,245,.7);
}
.contact-card-handle { color: var(--paper); }
.contact-card-dot { color: rgba(250,249,245,.4); }
.contacts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin: 16px 0;
}
.contact {
  padding: 18px 22px 18px 0;
  border-right: 1px solid rgba(255,255,255,.08);
}
.contact:last-child { border-right: 0; padding-right: 0; }
.contact:not(:first-child) { padding-left: 22px; }
.contact-q {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(250,249,245,.55);
  margin-bottom: 6px;
}
.contact-a {
  font-size: 16px;
  font-weight: 500;
  color: var(--paper);
}
.footer-note {
  font-size: 12.5px;
  color: rgba(250,249,245,.5);
  margin: 14px 0 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .page-grid { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .toc-list { display: flex; flex-direction: row; flex-wrap: wrap; border-left: 0; gap: 4px; }
  .toc-list li a { border: 1px solid var(--rule); border-radius: 999px; padding: 6px 12px; }
  .toc-list li.is-active a { border-color: var(--primary); background: var(--primary-tint); }
  .ways { grid-template-columns: 1fr; }
  .donts { grid-template-columns: 1fr; }
  .contacts { grid-template-columns: 1fr; }
  .contact { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.08); padding: 18px 0; }
  .contact:last-child { border-bottom: 0; }
  .contact:not(:first-child) { padding-left: 0; }
}
@media (max-width: 640px) {
  .page-head-inner { flex-wrap: wrap; padding: 12px 18px; }
  .hero { padding: 36px 20px 16px; }
  .page-grid { padding: 16px 20px 64px; gap: 24px; }
  .step, .block { padding: 24px 22px; }
  .step-title { font-size: 26px; }
  .block-head h2 { font-size: 24px; }
  .path-tabs { grid-template-columns: 1fr; }
  .stop-flow { flex-direction: column; }
  .stop-arrow { transform: rotate(90deg); padding: 4px 0; }
  .lang-label { display: none; }
}

/* ─────────────────────────────────────────────────────────────
   HOW-IT-WORKS SECTIONS
   Tools / Saving / GitHub / Workflow / Rules / Commands / Setup
   ───────────────────────────────────────────────────────────── */

.hiw-block .sub-h {
  font-family: var(--f-serif);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 28px 0 14px;
  color: var(--ink);
}

/* Tools */
.tools-groups { display: flex; flex-direction: column; gap: 28px; }
.tools-group-name {
  font: 500 11px/1 var(--f-sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}
.tool-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 16px 16px 14px;
  display: grid;
  grid-template-columns: 36px 1fr;
  grid-template-rows: auto auto;
  column-gap: 12px;
  row-gap: 8px;
  transition: border-color 0.18s, box-shadow 0.18s;
}
.tool-card:hover {
  border-color: var(--primary-soft);
  box-shadow: var(--shadow-sm);
}
.tool-glyph {
  grid-row: 1 / span 2;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: var(--primary-tint);
  color: var(--primary-deep);
  border-radius: 9px;
  font-size: 20px;
  line-height: 1;
}
.tool-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.tool-name { font: 600 14.5px/1.3 var(--f-sans); color: var(--ink); }
.tool-role { font: 500 11.5px/1.3 var(--f-sans); color: var(--primary-deep); letter-spacing: 0.01em; }
.tool-desc { grid-column: 1 / -1; font: 400 13px/1.55 var(--f-sans); color: var(--ink-soft); }

.claude-ways {
  margin-top: 32px;
  padding: 20px 22px 22px;
  background: var(--primary-tint);
  border: 1px solid var(--primary-soft);
  border-radius: var(--r-lg);
}
.ways-title {
  font-family: var(--f-serif);
  font-weight: 600;
  font-size: 18px;
  margin: 0 0 14px;
  color: var(--primary-deep);
}
.claude-ways-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.claude-way {
  background: var(--card);
  border: 1px solid var(--primary-soft);
  border-radius: var(--r-md);
  padding: 14px 14px 12px;
  display: grid;
  grid-template-columns: 28px 1fr;
  column-gap: 10px;
  row-gap: 4px;
}
.claude-way-glyph {
  grid-row: 1 / span 2;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  font-size: 16px;
  color: var(--primary-deep);
  background: var(--primary-soft);
  border-radius: 7px;
  line-height: 1;
}
.claude-way-name { font: 600 13.5px/1.3 var(--f-sans); color: var(--ink); }
.claude-way-desc { font: 400 12.5px/1.55 var(--f-sans); color: var(--ink-soft); grid-column: 1 / -1; }

/* Saving */
.two-kinds {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 18px;
}
.two-kind {
  border: 1px solid var(--rule);
  background: var(--card);
  border-radius: var(--r-lg);
  padding: 18px 18px 16px;
  position: relative;
}
.two-kind-0 { border-left: 4px solid #4B5563; }
.two-kind-1 { border-left: 4px solid var(--primary); background: linear-gradient(180deg, var(--primary-tint) 0%, var(--card) 60%); }
.two-kind-tag {
  font: 600 13px/1.2 var(--f-sans);
  color: var(--ink);
  margin-bottom: 4px;
}
.two-kind-trigger {
  font: 500 11.5px/1.2 var(--f-mono);
  color: var(--ink-mute);
  margin-bottom: 10px;
  letter-spacing: 0;
}
.two-kind-desc { font: 400 14px/1.55 var(--f-sans); color: var(--ink-soft); margin: 0; }

.analogy-box {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: center;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 14px 16px;
  margin: 14px 0;
}
.analogy-mark {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: var(--ink);
  color: var(--paper);
  border-radius: 50%;
  font-size: 18px;
  line-height: 1;
}
.analogy-box p {
  margin: 0;
  font: 500 14px/1.5 var(--f-sans);
  color: var(--ink-soft);
  text-wrap: pretty;
}

.save-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 10px;
  margin: 14px 0 18px;
}
.save-flow-node {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 12px 12px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 88px;
  justify-content: center;
}
.save-flow-node-0 { border-color: #C9CDD6; }
.save-flow-node-1 { border-color: var(--primary-soft); background: var(--primary-tint); }
.save-flow-node-2 { border-color: #F2D49A; background: var(--warn-bg); }
.save-flow-node-3 { border-color: var(--info-rule); background: var(--info-bg); }
.save-flow-node-4 { border-color: var(--tip-rule); background: var(--tip-bg); }
.save-flow-i {
  font: 600 10px/1 var(--f-mono);
  color: var(--ink-mute);
  letter-spacing: 0.1em;
}
.save-flow-tag { font: 600 13px/1.3 var(--f-sans); color: var(--ink); }
.save-flow-note { font: 400 11.5px/1.35 var(--f-sans); color: var(--ink-mute); }
.save-flow-arrow {
  display: grid; place-items: center;
  font: 400 18px/1 var(--f-sans);
  color: var(--ink-faint);
  padding: 0 2px;
}

/* GitHub & PRs */
.vs-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: stretch;
  margin: 14px 0 4px;
}
.vs-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 18px 18px 16px;
}
.vs-card-0 { border-top: 3px solid #4B5563; }
.vs-card-1 { border-top: 3px solid var(--primary); background: var(--primary-tint); }
.vs-card-tag { font: 600 14px/1.3 var(--f-sans); color: var(--ink); margin-bottom: 6px; }
.vs-card p { margin: 0; font: 400 13.5px/1.55 var(--f-sans); color: var(--ink-soft); }
.vs-divider {
  display: grid;
  place-items: center;
  position: relative;
}
.vs-divider span {
  font: 600 11px/1 var(--f-sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  background: var(--paper);
  padding: 6px 9px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  z-index: 1;
}
.vs-divider::before {
  content: "";
  position: absolute;
  top: 50%; left: -2px; right: -2px;
  height: 1px;
  background: var(--rule);
}

.branches-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 18px;
  margin: 14px 0 0;
}
.branches-svg { width: 100%; height: auto; max-height: 240px; display: block; }
.branch-main { stroke: #0E8E7B; stroke-width: 3; stroke-linecap: round; }
.branch-main.staging { stroke: var(--primary); }
.branch-feature { stroke: var(--primary-deep); stroke-width: 2; stroke-linecap: round; fill: none; }
.branch-feature.dashed { stroke-width: 1.5; stroke-dasharray: 5,3; }
.branch-release { stroke: var(--primary); stroke-width: 2; stroke-linecap: round; stroke-dasharray: 4,3; fill: none; }
.branch-dot { fill: #0E8E7B; }
.branch-dot.staging { fill: var(--primary); }
.branch-dot.feature { fill: var(--primary-deep); }
.branch-dot.merge { stroke: white; stroke-width: 2; }
.branch-label { font: 700 12px/1 var(--f-mono); fill: var(--ink); }
.branch-label.main { fill: #0E8E7B; }
.branch-label.staging { fill: var(--primary); }
.branch-label.feature { fill: var(--primary-deep); }
.branch-sub { font: 400 10px/1 var(--f-sans); fill: var(--ink-mute); }
.branch-merge-label { font: 600 10px/1 var(--f-sans); fill: #0E8E7B; text-anchor: middle; }

.when-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 6px 0 0;
}
.when-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 16px 16px 14px;
  border-left: 3px solid var(--rule);
}
.when-card-0 { border-left-color: var(--primary); background: var(--primary-tint); }
.when-card-1 { border-left-color: #B45309; }
.when-card-tag { font: 600 14px/1.3 var(--f-sans); color: var(--ink); margin-bottom: 4px; }
.when-card p { margin: 0; font: 400 13px/1.55 var(--f-sans); color: var(--ink-soft); }

/* Workflow pipeline */
.wf-pipeline {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 14px;
}
.wf-group {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  align-items: stretch;
}
.wf-group-rail {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 14px 12px;
  position: relative;
  display: flex;
  align-items: flex-start;
}
.wf-group-label {
  font: 700 12px/1 var(--f-sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  writing-mode: horizontal-tb;
}
.wf-group-plan .wf-group-rail { border-left: 3px solid var(--primary); background: var(--primary-tint); }
.wf-group-plan .wf-group-label { color: var(--primary-deep); }
.wf-group-build .wf-group-rail { border-left: 3px solid #0E8E7B; background: var(--tip-bg); }
.wf-group-build .wf-group-label { color: #0E6B53; }
.wf-group-ship .wf-group-rail { border-left: 3px solid #B45309; background: var(--warn-bg); }
.wf-group-ship .wf-group-label { color: var(--warn-fg); }

.wf-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.wf-step {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  align-items: start;
}
.wf-step-n {
  font: 700 13px/1 var(--f-mono);
  color: var(--ink-mute);
  letter-spacing: 0.05em;
  padding-top: 3px;
  text-align: center;
}
.wf-step-body h4 {
  margin: 0 0 4px;
  font: 600 14.5px/1.35 var(--f-sans);
  color: var(--ink);
}
.wf-step-body p {
  margin: 0;
  font: 400 13px/1.55 var(--f-sans);
  color: var(--ink-soft);
}

.wf-strip {
  margin-top: 22px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 16px 16px 18px;
}
.wf-strip-title {
  font: 600 12px/1 var(--f-sans);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 10px;
}
.wf-strip-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.wf-strip-cell {
  font: 600 12px/1.2 var(--f-sans);
  color: var(--ink);
  padding: 8px 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 999px;
  white-space: nowrap;
}
.wf-strip-cell:nth-of-type(8n+1),
.wf-strip-cell:nth-of-type(8n+2) { background: var(--primary-tint); border-color: var(--primary-soft); color: var(--primary-deep); }
.wf-strip-cell:nth-of-type(8n+3) { background: var(--tip-bg); border-color: var(--tip-rule); color: var(--tip-fg); }
.wf-strip-cell:nth-of-type(8n+4) { background: var(--warn-bg); border-color: var(--warn-rule); color: var(--warn-fg); }
.wf-strip-cell:last-of-type { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.wf-strip-arrow {
  font: 500 14px/1 var(--f-sans);
  color: var(--ink-faint);
}

/* Best practices */
.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
}
.rule {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 16px 16px 14px;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  border-left: 3px solid var(--rule);
}
.rule-plan  { border-left-color: var(--primary); }
.rule-build { border-left-color: #0E8E7B; }
.rule-ship  { border-left-color: #B45309; }
.rule-warn  { border-left-color: #C2410C; }
.rule-glyph {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: var(--paper-2);
  border-radius: 9px;
  font: 700 18px/1 var(--f-mono);
  color: var(--ink);
}
.rule-plan  .rule-glyph { background: var(--primary-tint); color: var(--primary-deep); }
.rule-build .rule-glyph { background: var(--tip-bg); color: var(--tip-fg); }
.rule-ship  .rule-glyph { background: var(--warn-bg); color: var(--warn-fg); }
.rule-warn  .rule-glyph { background: var(--warn-bg); color: var(--warn-fg); }
.rule-body h4 {
  margin: 0 0 4px;
  font: 600 14px/1.35 var(--f-sans);
  color: var(--ink);
}
.rule-body p {
  margin: 0;
  font: 400 13px/1.55 var(--f-sans);
  color: var(--ink-soft);
}

/* Cheatsheet */
.cheats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.cheat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cheat-name {
  font: 600 13px/1 var(--f-sans);
  letter-spacing: 0.05em;
  color: var(--ink);
}
.cheat .cmd { margin: 0; }
.cmd.cmd-rich .cmd-line.is-comment .cmd-text { color: #8A8FA3; font-style: italic; }
.cmd.cmd-rich .cmd-line.is-prompt .cmd-prompt { color: var(--code-accent); }
.cmd.cmd-rich .cmd-line.is-prompt .cmd-text { color: var(--code-accent); }

/* Setup */
.rule-types {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 6px 0 8px;
}
.rule-type {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  padding: 16px 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.rule-type-0 { border-left: 4px solid #4B5563; }
.rule-type-1 { border-left: 4px solid var(--primary); background: linear-gradient(180deg, var(--primary-tint) 0%, var(--card) 70%); }
.rule-type-tag { font: 600 14px/1.2 var(--f-sans); color: var(--ink); }
.rule-type-path {
  font: 500 12.5px/1 var(--f-mono);
  color: var(--primary-deep);
  background: var(--primary-tint);
  border: 1px solid var(--primary-soft);
  border-radius: 6px;
  padding: 4px 8px;
  align-self: flex-start;
}
.rule-type p { margin: 0; font: 400 13px/1.55 var(--f-sans); color: var(--ink-soft); }

.does-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 6px;
}
.does {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 14px 14px 12px;
  border-top: 2px solid var(--primary-soft);
}
.does-tag { font: 600 13.5px/1.2 var(--f-sans); color: var(--primary-deep); margin-bottom: 4px; }
.does p { margin: 0; font: 400 12.5px/1.55 var(--f-sans); color: var(--ink-soft); }

/* Mobile / narrow */
@media (max-width: 880px) {
  .save-flow { grid-template-columns: 1fr; }
  .save-flow-arrow { transform: rotate(90deg); padding: 4px 0; }
  .two-kinds, .vs-row, .when-row, .rule-types, .cheats { grid-template-columns: 1fr; }
  .vs-divider { transform: rotate(0); padding: 4px 0; }
  .vs-divider::before { display: none; }
  .wf-group { grid-template-columns: 1fr; }
  .wf-group-rail { padding: 8px 12px; }
}

/* Print */
@media print {
  .page-head, .sidebar { display: none; }
  body { background: white; }
  .step, .block { box-shadow: none; border: 1px solid #ccc; page-break-inside: avoid; }
  .page-grid { grid-template-columns: 1fr; padding: 0 24px; }
  .hiw-block { page-break-inside: avoid; }
  .wf-step, .tool-card, .rule, .vs-card, .when-card, .save-flow-node { page-break-inside: avoid; }
}