@charset "UTF-8";
:root {
  --handbook-paper: #f8f6ef;
  --handbook-ink: #303b32;
  --handbook-muted: #7d8375;
  --handbook-green: #4c664b;
  --handbook-line: #d9dccd;
  --handbook-sage: #e6ebdd;
  --handbook-yellow: #f1e6ba;
  --handbook-blue: #e4eaf0;
  --handbook-peach: #f0e1d1;
  --handbook-serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --handbook-sans: "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --handbook-hand: "Kaiti SC", KaiTi, STKaiti, var(--handbook-serif);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; background: var(--handbook-paper); color: var(--handbook-ink); font: 14px/1.7 var(--handbook-sans); -webkit-font-smoothing: antialiased; }
button, input, textarea { font: inherit; }
button, a, input, textarea, summary { -webkit-tap-highlight-color: transparent; }
button, summary { cursor: pointer; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
button, input, textarea { border-radius: 0; }
button { background: none; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 2px solid var(--handbook-green); outline-offset: 5px; }
button:disabled { cursor: default; opacity: .5; }
::selection { background: #e9d898; color: #26332a; }
[hidden] { display: none !important; }
svg { display: block; }
.handbook-icon { width: 21px; height: 21px; flex: 0 0 auto; }
.handbook-skip { position: fixed; top: -100px; left: 16px; z-index: 100; background: var(--handbook-green); color: white; padding: 10px 20px; }
.handbook-skip:focus { top: 12px; }
.handbook-sidebar { width: 254px; position: fixed; inset: 0 auto 0 0; z-index: 30; background: #eeeee4; border-right: 1px solid var(--handbook-line); display: flex; flex-direction: column; padding: 32px 21px 19px; }
.handbook-brand { display: flex; align-items: center; gap: 12px; margin: 2px 3px 31px; font-size: 19px; font-family: var(--handbook-serif); font-weight: 700; white-space: nowrap; letter-spacing: .5px; }
.handbook-brand > svg { width: 37px; height: 40px; padding: 6px; background: #e7dca9; border-radius: 8px 4px 9px 4px; transform: rotate(-6deg); }
.handbook-brand small { display: block; margin-top: 3px; color: var(--handbook-muted); font-size: 10px; font-family: var(--handbook-sans); font-weight: 400; letter-spacing: 2px; }
.handbook-overview { display: flex; align-items: center; gap: 10px; padding: 11px 14px; font-size: 13px; border: 1px solid transparent; border-radius: 4px 9px 5px 8px; }
.handbook-overview.is-active { color: #425b40; background: #dfe5d4; border-color: #d1d9c4; }
.handbook-overview > span { margin-left: auto; }
.handbook-sidebar-label { color: #8c907f; font: 10px/1.5 Georgia, serif; letter-spacing: 1.5px; margin: 25px 12px 8px; }
.handbook-sidebar-label > span { letter-spacing: 2px; font: 10px var(--handbook-sans); margin-left: 9px; }
.handbook-chapter-nav { flex: 1; min-height: 0; overflow-y: auto; scrollbar-width: thin; scrollbar-color: #cdd3c3 transparent; margin-right: -8px; padding-right: 7px; padding-bottom: 16px; }
.handbook-nav-stage { margin-top: 20px; }
.handbook-nav-stage:first-child { margin-top: 8px; }
.handbook-nav-stage > p { color: #6d7766; font-size: 11px; font-weight: 600; margin: 0 9px 8px; letter-spacing: .6px; }
.handbook-nav-stage > p > span { font: 12px Georgia, serif; margin-right: 9px; color: #939a84; }
.handbook-chapter-link { display: flex; align-items: flex-start; gap: 10px; border-radius: 4px; padding: 7px 8px; margin: 2px 0; font-size: 12px; line-height: 1.65; color: #65715e; }
.handbook-chapter-link:hover, .handbook-overview:hover { background: #e4e7db; color: var(--handbook-green); }
.handbook-chapter-link.is-active { background: #dfe6d5; color: #3b563b; font-weight: 600; }
.handbook-chapter-link > span:nth-child(2) { flex: 1; }
.handbook-chapter-link > small { font-size: 9px; color: #8b927d; }
.handbook-nav-dot { display: inline-flex; align-items: center; justify-content: center; width: 6px; height: 6px; border: 1px solid #aab29c; border-radius: 50%; margin-top: 6px; flex: 0 0 auto; font-size: 9px; }
.is-active .handbook-nav-dot { background: var(--handbook-green); border-color: var(--handbook-green); }
.is-complete .handbook-nav-dot { border: none; color: var(--handbook-green); }
.handbook-progress { margin-top: 12px; padding: 17px 10px 0; border-top: 1px dashed #c8cdbb; }
.handbook-progress > div { display: flex; align-items: center; justify-content: space-between; font-size: 11px; }
.handbook-progress strong { font-family: Georgia, serif; font-size: 17px; font-weight: 400; }
.handbook-progress small { font-size: 12px; color: #8b9281; }
.handbook-progress progress { display: block; width: 100%; height: 5px; margin-top: 12px; accent-color: #7b9171; border: none; border-radius: 3px; background: #dce1d1; }
.handbook-progress progress::-webkit-progress-bar { background: #dce1d1; border-radius: 3px; }
.handbook-progress progress::-webkit-progress-value { background: #7b9171; border-radius: 3px; }
.handbook-progress p { margin: 9px 0 0; font-size: 10px; color: #969b8b; }
.handbook-workspace { margin-left: 254px; min-height: 100vh; display: flex; flex-direction: column; }
.handbook-topbar { display: flex; align-items: center; gap: 28px; min-height: 77px; padding: 0 44px; border-bottom: 1px solid #e5e6db; background: var(--handbook-paper); position: sticky; top: 0; z-index: 20; }
.handbook-topbar-title { color: #69775e; font-size: 11px; letter-spacing: .6px; margin-right: auto; }
.handbook-topnav { display: flex; gap: 23px; white-space: nowrap; color: #687460; font-size: 12px; }
.handbook-topnav a:hover { color: #2f4b32; text-decoration: underline; text-underline-offset: 5px; }
.handbook-searchbox { display: flex; align-items: center; gap: 9px; padding: 7px 10px; width: 206px; border: 1px solid #d9ddcf; background: #f0f1e8; border-radius: 5px 6px 4px 7px; color: #8a927e; }
.handbook-searchbox svg { width: 15px; height: 15px; }
.handbook-searchbox input { min-width: 0; width: 100%; padding: 0; background: transparent; border: none; color: var(--handbook-ink); font-size: 11px; }
.handbook-searchbox input:focus { outline: none; }
.handbook-searchbox:focus-within { outline: 2px solid #9eae8e; outline-offset: 2px; }
.handbook-searchbox kbd { border: 1px solid #dce0d4; border-radius: 3px; padding: 0 5px; font: 11px/1.5 monospace; }
.handbook-main { width: 100%; max-width: 1440px; padding: 0 52px 60px; margin: 0 auto; flex: 1; outline: none; }
.handbook-hero { display: grid; grid-template-columns: 1.3fr 1fr; gap: 8px; align-items: center; padding: 64px 0 48px; }
.handbook-eyebrow { display: flex; align-items: center; gap: 8px; font-size: 9px; font-weight: 500; letter-spacing: 1.6px; color: #87917b; margin: 0 0 18px; }
.handbook-hero .handbook-eyebrow > span { width: 6px; height: 6px; background: #889976; border-radius: 50%; }
.handbook-hero h1 { font: 600 clamp(33px, 3.4vw, 56px)/1.65 var(--handbook-serif); letter-spacing: 1px; margin: 0 0 19px; color: #354e39; white-space: nowrap; }
.handbook-underline { position: relative; z-index: 0; }
.handbook-underline::after { content: ''; position: absolute; bottom: 3px; left: 0; width: 100%; height: 12px; background: #e7d98f; border-radius: 30% 13% 31% 24%; transform: rotate(-1.2deg); z-index: -1; opacity: .75; }
.handbook-hero-copy > p { font-size: 14px; line-height: 2; color: #7b8272; margin: 0 0 29px; }
.handbook-hero-actions { display: flex; align-items: center; gap: 22px; }
.handbook-button { display: inline-flex; align-items: center; justify-content: center; gap: 13px; background: var(--handbook-green); color: #fffdf2; border: 1px solid #435a41; border-radius: 4px 8px 5px 7px; padding: 12px 20px; font-size: 12px; box-shadow: 2px 3px 0 #d5dbc8; transition: background .15s, transform .15s; }
.handbook-button:hover { background: #3d573f; transform: translateY(-2px); }
.handbook-button svg { width: 17px; height: 17px; }
.handbook-button-secondary { display: inline-flex; justify-content: center; align-items: center; padding: 11px 16px; font-size: 12px; border: 1px solid #bec8b4; background: #f3f3e9; border-radius: 5px 3px 6px 4px; }
.handbook-button-secondary:hover { background: #e7ecdF; }
.handbook-text-link { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: #66745a; }
.handbook-text-link svg { width: 13px; height: 13px; }
.handbook-text-link:hover { color: var(--handbook-green); }
.handbook-hero-meta { display: flex; align-items: center; gap: 12px; color: #707b65; font-size: 10px; margin-top: 25px; }
.handbook-hero-meta i { width: 3px; height: 3px; background: #b6bdaa; border-radius: 50%; }
.handbook-hero-art { width: 100%; max-width: 410px; margin: 1px 0 0 auto; transform: rotate(1deg); }
.handbook-source-strip { display: flex; align-items: center; gap: 12px; color: #6d775d; padding: 13px 17px; border: 1px dashed #ccd2bc; background: #f1f1e6; border-radius: 4px 8px 3px 6px; font-size: 10px; }
.handbook-source-strip > svg { width: 15px; height: 15px; }
.handbook-source-strip p { margin: 0; flex: 1; }
.handbook-source-strip a { display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.handbook-source-strip a svg { width: 14px; height: 14px; }
.handbook-route-section { padding-top: 46px; }
.handbook-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; }
.handbook-section-heading .handbook-eyebrow { margin-bottom: 10px; font-size: 8px; }
.handbook-section-heading h2 { font: 600 24px/1.6 var(--handbook-serif); margin: 0; }
.handbook-handnote { font-family: var(--handbook-hand); font-size: 13px; color: #939983; transform: rotate(-5deg); display: inline-block; white-space: nowrap; }
.handbook-route-map { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); margin: 34px 0 32px; }
.handbook-route-map::before { content: ''; position: absolute; top: 23px; left: 8%; right: 8%; border-top: 1px dashed #bfc7b0; transform: rotate(-.35deg); }
.handbook-route-stop { text-align: center; position: relative; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.handbook-route-circle { display: flex; align-items: center; justify-content: center; width: 47px; height: 46px; border: 1px solid #b7c3a6; border-radius: 48% 45% 47% 41%; box-shadow: 0 0 0 6px var(--handbook-paper); margin-bottom: 7px; transition: transform .15s; }
.handbook-route-stop:nth-child(even) .handbook-route-circle { transform: rotate(5deg); }
.handbook-route-stop:hover .handbook-route-circle { transform: translateY(-4px) rotate(-5deg); }
.handbook-route-stop strong { font-size: 11px; font-weight: 500; }
.handbook-route-stop small { font-size: 9px; color: #6c7a60; }
.handbook-tint-sage { background: var(--handbook-sage); }
.handbook-tint-yellow { background: var(--handbook-yellow); }
.handbook-tint-blue { background: var(--handbook-blue); }
.handbook-tint-peach { background: var(--handbook-peach); }
.handbook-stage-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.handbook-stage-card { padding: 23px 21px 22px; border: 1px solid #cbd2be; border-radius: 5px 9px 4px 8px; background: #fcfbf5; position: relative; box-shadow: 2px 3px 0 #e7e8dc; transition: transform .18s, border-color .18s; }
.handbook-stage-card:hover { transform: translateY(-3px); border-color: #93a481; }
.handbook-stage-card:nth-child(2n) { border-radius: 8px 4px 9px 4px; }
.handbook-card-top { display: flex; align-items: center; gap: 10px; font-size: 9px; color: #8b9380; }
.handbook-card-icon { display: flex; align-items: center; justify-content: center; width: 33px; height: 33px; border-radius: 7px 4px 7px 3px; color: #64735a; }
.handbook-card-icon svg { width: 20px; height: 20px; }
.handbook-card-top small { margin-left: auto; font: 11px Georgia, serif; }
.handbook-stage-title { display: flex; align-items: center; justify-content: space-between; margin-top: 13px; }
.handbook-stage-title h3 { font: 600 19px var(--handbook-serif); margin: 0; }
.handbook-stage-title svg { width: 17px; color: #8b967d; }
.handbook-stage-card > p { color: #718161; font-size: 10px; margin: 9px 0 16px; }
.handbook-stage-card ul { list-style: none; padding: 13px 0 0; margin: 0; border-top: 1px dashed #dce0d1; }
.handbook-stage-card li a { display: flex; align-items: center; gap: 8px; padding: 5px 0; font-size: 12px; color: #65735b; }
.handbook-stage-card li a:hover { color: #35583d; }
.handbook-stage-card li a > small { margin-left: auto; font-size: 8px; background: #f1f0e4; padding: 1px 4px; border-radius: 3px; color: #777c61; }
.handbook-list-dot { width: 4px; height: 4px; border: 1px solid #b5bea6; border-radius: 50%; flex: 0 0 auto; }
.handbook-list-dot.is-done { border: 0; font-size: 10px; line-height: 4px; color: var(--handbook-green); }
.handbook-method { padding: 32px 35px; border: 1px solid #d8ddc8; border-radius: 6px 11px 4px 9px; background: #edf0e2; margin-top: 32px; display: grid; grid-template-columns: 1fr 1.2fr; gap: 10px 35px; }
.handbook-method-label { display: flex; gap: 7px; font-size: 10px; align-items: center; color: #819071; grid-column: 1 / -1; }
.handbook-method-label svg { width: 16px; }
.handbook-method h2 { font: 600 24px/1.8 var(--handbook-serif); margin: 5px 0; }
.handbook-method-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-content: center; font-size: 11px; }
.handbook-method-steps b { font: italic 17px Georgia, serif; color: #798b68; margin-right: 7px; }
.handbook-method > p { grid-column: 1 / -1; color: #707d62; font-size: 10px; margin: 9px 0 0; }
.handbook-footer { display: flex; justify-content: space-between; align-items: center; margin: 0 52px; padding: 22px 0; border-top: 1px solid #e1e4d5; color: #6d7a60; font-size: 10px; }
.handbook-footer > span, .handbook-footer > a { display: flex; align-items: center; gap: 7px; }
.handbook-footer svg { width: 14px; height: 14px; }
.handbook-footer-links { display: flex; gap: 18px; align-items: center; }
.handbook-page-heading { padding: 44px 0 32px; }
.handbook-back-link { display: inline-block; margin-bottom: 30px; color: #8d967e; font-size: 11px; }
.handbook-page-heading h1 { font: 600 37px/1.5 var(--handbook-serif); margin: 0 0 18px; color: #3e583f; }
.handbook-page-heading > p:last-child { color: #838c78; font-size: 13px; line-height: 1.9; max-width: 760px; }
.handbook-reading-list { display: grid; gap: 16px; }
.handbook-reading-card { display: flex; align-items: flex-start; gap: 25px; background: #fcfbf5; border: 1px solid #d8ddcb; border-radius: 5px 10px 4px 7px; padding: 25px; }
.handbook-reading-card:hover { border-color: #9fae90; background: #f4f5e9; }
.handbook-chapter-number { font: italic 30px Georgia, serif; color: #b8c2a9; padding-top: 9px; }
.handbook-reading-card > div { flex: 1; }
.handbook-reading-card h2 { font: 600 21px var(--handbook-serif); margin: 8px 0; }
.handbook-reading-card p { color: #828b78; font-size: 12px; margin: 10px 0; }
.handbook-reading-card small, .handbook-reading-card > div > span { color: #728364; font-size: 10px; }
.handbook-reading-card > svg { margin-top: 24px; width: 18px; color: #8a9b78; }
.handbook-tag { display: inline-block; background: #eaedde; color: #7f8e6c; font-size: 9px; padding: 3px 7px; border-radius: 3px; white-space: nowrap; }
.handbook-filter-row { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 24px; }
.handbook-filter { border: 1px solid #d5dcc8; background: transparent; border-radius: 5px 3px 5px 4px; padding: 7px 15px; font-size: 11px; color: #7f8c70; }
.handbook-filter.is-active { background: #dfe7d2; border-color: #afbea0; color: #4c6844; }
.handbook-resource-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.handbook-resource-card { border: 1px solid #d7ddc9; padding: 22px; border-radius: 5px 8px 4px 7px; background: #fdfcf5; }
.handbook-resource-card > a { display: flex; align-items: center; gap: 12px; margin-top: 15px; }
.handbook-resource-card h2 { margin: 0; font-size: 14px; line-height: 1.8; flex: 1; font-weight: 500; }
.handbook-resource-card > a > svg { width: 14px; color: #7e8e6c; }
.handbook-resource-card > p { font-size: 10px; color: #6d7d5c; margin: 11px 0 16px; overflow-wrap: anywhere; }
.handbook-resource-card > div { display: flex; flex-wrap: wrap; gap: 7px; border-top: 1px dashed #e0e4d5; padding-top: 13px; }
.handbook-resource-chapter { font-size: 9px; color: #667b54; padding: 3px 7px; background: #f1f3e8; border-radius: 3px; }
.handbook-resource-chapter:hover { background: #e5ecd8; }
.handbook-notes-toolbar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 34px; }
.handbook-import-label { cursor: pointer; }
.handbook-import-label input { position: absolute; width: 1px; height: 1px; clip-path: inset(50%); }
.handbook-import-label:focus-within { outline: 2px solid var(--handbook-green); outline-offset: 4px; }
.handbook-subheading { font: 600 23px var(--handbook-serif); margin: 35px 0 19px; }
.handbook-subheading small { color: #74885f; font: italic 17px Georgia, serif; margin-left: 8px; }
.handbook-bookmark-list { display: flex; flex-wrap: wrap; gap: 12px; }
.handbook-bookmark-list > a { display: flex; align-items: center; gap: 9px; border: 1px solid #d4ddc7; border-radius: 4px 7px 3px 5px; padding: 11px 15px; font-size: 11px; background: #edf1e2; }
.handbook-bookmark-list svg { width: 15px; height: 15px; }
.handbook-notes-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.handbook-note-card { background: #faf5dd; border: 1px solid #e0d7aa; border-radius: 5px 2px 6px 3px; padding: 24px; }
.handbook-note-card > a { display: flex; gap: 10px; align-items: center; justify-content: space-between; }
.handbook-note-card h3 { font: 600 18px var(--handbook-serif); margin: 0; }
.handbook-note-card svg { width: 17px; }
.handbook-note-card > p { font-size: 12px; white-space: pre-wrap; overflow-wrap: anywhere; line-height: 2.1; color: #716949; }
.handbook-empty { padding: 40px 25px; background: #f0f2e8; border: 1px dashed #c5cfb7; color: #6b7b5b; border-radius: 7px; font-size: 13px; grid-column: 1 / -1; }
.handbook-empty-inline { font-size: 12px; color: #69765e; }
.handbook-about-copy { max-width: 780px; font-size: 14px; line-height: 2.1; color: #737d67; }
.handbook-about-copy h2 { font: 600 23px var(--handbook-serif); margin-top: 36px; color: #425a3d; }
.handbook-about-copy a { color: var(--handbook-green); text-decoration: underline; text-underline-offset: 3px; }
.handbook-toast { position: fixed; bottom: 26px; left: calc(50% + 127px); transform: translateX(-50%); z-index: 70; padding: 11px 22px; color: #fffdf3; background: #506749; border: 1px solid #41583a; border-radius: 5px 9px 4px 8px; box-shadow: 2px 3px 0 #2e3b2820; font-size: 12px; }
.handbook-storage-error { position: fixed; bottom: 0; right: 0; left: 254px; z-index: 90; background: #f4ddcb; border-top: 1px solid #c78661; padding: 12px 22px; font-size: 12px; color: #7e4028; }
.handbook-import-preview { border: 1px solid #b6c69f; background: #eef2e2; border-radius: 6px; padding: 24px; margin: 25px 0; }
.handbook-import-preview h2 { font: 600 22px var(--handbook-serif); }
.handbook-import-preview p { color: #748462; font-size: 12px; }
.handbook-import-preview > div { display: flex; gap: 12px; margin-top: 20px; }
.handbook-menu-button.handbook-icon-button, .handbook-backdrop { display: none; }
.handbook-icon-button { border: 1px solid #d9dfce; border-radius: 4px 6px 4px 5px; width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center; color: #82916f; }
.handbook-icon-button svg { width: 17px; height: 17px; }
.handbook-icon-button:hover, .handbook-icon-button[aria-pressed="true"] { background: #e3ead8; border-color: #b7c4a5; color: #44633f; }
.handbook-noscript { margin: 50px; padding: 30px; border: 1px solid #d5c691; }
@media (min-width: 1600px) { .handbook-hero { padding-top: 78px; padding-bottom: 65px; }.handbook-hero h1 { font-size: 58px; } }
@media (max-width: 1200px) {
  .handbook-sidebar { width: 228px; padding-left: 16px; padding-right: 16px; }
  .handbook-brand { font-size: 17px; gap: 9px; }
  .handbook-workspace { margin-left: 228px; }
  .handbook-topbar { padding: 0 30px; gap: 20px; }
  .handbook-topbar-title { font-size: 10px; }
  .handbook-topnav { gap: 14px; font-size: 11px; }
  .handbook-searchbox { width: 175px; }
  .handbook-main { padding-left: 33px; padding-right: 33px; }
  .handbook-hero { padding-top: 48px; grid-template-columns: 1.35fr 1fr; }
  .handbook-hero h1 { font-size: 36px; }
  .handbook-hero-copy > p { font-size: 12px; }
  .handbook-stage-grid { gap: 14px; }
  .handbook-stage-card { padding: 20px 16px; }
  .handbook-stage-card li a { font-size: 10px; }
  .handbook-toast { left: calc(50% + 114px); }
  .handbook-storage-error { left: 228px; }
}
@media (max-width: 1000px) {
  .handbook-topbar-title { display: none; }
  .handbook-topnav { margin-right: auto; }
  .handbook-hero { grid-template-columns: 1fr .75fr; }
  .handbook-hero h1 { font-size: 30px; }
  .handbook-hero-actions { gap: 12px; }
  .handbook-hero .handbook-text-link { font-size: 10px; }
  .handbook-hero .handbook-eyebrow { font-size: 8px; letter-spacing: 1px; }
  .handbook-hero-meta { gap: 8px; font-size: 9px; }
  .handbook-stage-grid { grid-template-columns: 1fr 1fr; }
  .handbook-stage-card li a { font-size: 11px; }
  .handbook-section-heading h2 { font-size: 21px; }
  .handbook-section-heading > .handbook-handnote { display: none; }
  .handbook-route-stop strong { font-size: 9px; }
  .handbook-route-stop small { font-size: 8px; }
  .handbook-method { padding: 27px; grid-template-columns: 1fr; }
  .handbook-method h2 br { display: none; }
  .handbook-method-steps { margin-top: 12px; }
}
@media (max-width: 760px) {
  .handbook-sidebar { transform: translateX(-100%); width: 270px; transition: transform .2s; }
  .handbook-sidebar.is-open { transform: translateX(0); }
  .handbook-workspace { margin-left: 0; }
  .handbook-topbar { padding: 0 20px; min-height: 65px; gap: 17px; }
  .handbook-menu-button.handbook-icon-button { display: inline-flex; flex-shrink: 0; }
  .handbook-backdrop:not([hidden]) { display: block; position: fixed; inset: 0; z-index: 25; background: #26362550; border: none; }
  .handbook-topnav { font-size: 11px; }
  .handbook-searchbox { margin-left: auto; width: 190px; }
  .handbook-main { padding-left: 25px; padding-right: 25px; padding-bottom: 40px; }
  .handbook-hero { padding-top: 37px; padding-bottom: 35px; grid-template-columns: 1.2fr 1fr; }
  .handbook-hero h1 { font-size: clamp(27px, 4.8vw, 39px); }
  .handbook-hero-art { max-width: 285px; }
  .handbook-footer { margin: 0 25px; }
  .handbook-toast { left: 50%; width: max-content; max-width: calc(100vw - 36px); }
  .handbook-storage-error { left: 0; }
  .handbook-page-heading h1 { font-size: 31px; }
  .handbook-resource-card { padding: 17px; }
  .handbook-route-section { padding-top: 35px; }
}
@media (max-width: 540px) {
  .handbook-topbar { padding: 0 16px; gap: 13px; }
  .handbook-topnav { gap: 12px; font-size: 10px; }
  .handbook-searchbox { width: 150px; padding: 7px 8px; gap: 7px; }
  .handbook-searchbox input { font-size: 10px; }
  .handbook-searchbox kbd { display: none; }
  .handbook-main { padding-left: 21px; padding-right: 21px; }
  .handbook-hero { display: flex; flex-direction: column; align-items: flex-start; padding-bottom: 22px; }
  .handbook-hero h1 { font-size: 36px; letter-spacing: .3px; }
  .handbook-hero-copy > p { font-size: 12px; }
  .handbook-hero-art { width: 83%; max-width: 310px; margin: 24px auto 0; }
  .handbook-hero-meta { margin-top: 23px; font-size: 10px; }
  .handbook-hero-actions { gap: 22px; }
  .handbook-source-strip { gap: 9px; padding: 13px 12px; align-items: flex-start; }
  .handbook-source-strip a { font-size: 9px; }
  .handbook-source-strip a svg { display: none; }
  .handbook-section-heading h2 { font-size: 21px; }
  .handbook-route-map { grid-template-columns: repeat(3, 1fr); row-gap: 24px; margin-bottom: 27px; }
  .handbook-route-map::before { display: none; }
  .handbook-route-stop strong { font-size: 11px; }
  .handbook-route-stop small { font-size: 9px; }
  .handbook-stage-grid { grid-template-columns: 1fr; gap: 17px; }
  .handbook-stage-card { padding: 24px; }
  .handbook-stage-card li a { font-size: 12px; padding: 7px 0; }
  .handbook-stage-card h3 { font-size: 22px; }
  .handbook-method { padding: 24px; }
  .handbook-method h2 { font-size: 22px; }
  .handbook-method h2 br { display: block; }
  .handbook-method-steps { grid-template-columns: 1fr; gap: 14px; font-size: 12px; }
  .handbook-footer { margin: 0 21px; gap: 15px; font-size: 9px; }
  .handbook-page-heading { padding-top: 28px; }
  .handbook-page-heading h1 { font-size: 29px; }
  .handbook-reading-card { padding: 19px; gap: 15px; }
  .handbook-chapter-number { font-size: 25px; }
  .handbook-reading-card h2 { font-size: 19px; line-height: 1.7; }
  .handbook-reading-card > svg { display: none; }
  .handbook-resource-grid, .handbook-notes-grid { grid-template-columns: 1fr; }
  .handbook-resource-card { padding: 23px; }
  .handbook-notes-toolbar { gap: 10px; }
  .handbook-notes-toolbar .handbook-button-secondary { padding: 10px 12px; font-size: 11px; }
}
@media (max-width: 360px) { .handbook-topnav a:first-child { display: none; }.handbook-hero h1 { font-size: 31px; }.handbook-hero-actions { gap: 13px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }