:root {
  color-scheme: light;
  --paper: #f4f0e6;
  --paper-bright: #fbfaf4;
  --paper-deep: #e9e4d6;
  --ink: #171b17;
  --ink-soft: #353a32;
  --muted: #707466;
  --line: #c9c8b9;
  --lime: #d7ed62;
  --rust: #c65332;
  --serif: "Noto Serif SC", "Songti SC", "STSong", Georgia, serif;
  --sans: "DM Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "DM Mono", "SFMono-Regular", Consolas, monospace;
  --page-width: 1200px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
button:focus-visible, a:focus-visible, summary:focus-visible, textarea:focus-visible { outline: 2px solid var(--rust); outline-offset: 4px; }
::selection { background: var(--lime); color: var(--ink); }
.page-grain { position: fixed; inset: 0; pointer-events: none; z-index: 20; opacity: .12; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.92' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E"); mix-blend-mode: multiply; }
.section-wrap { width: min(var(--page-width), calc(100% - 72px)); margin-inline: auto; }
.site-header { min-height: 76px; width: 100%; padding: 0 max(36px, calc((100vw - var(--page-width)) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 28px; border-bottom: 1px solid rgba(23,27,23,.15); position: sticky; top: 0; z-index: 30; background: rgba(244,240,230,.94); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-mark { display: inline-grid; place-items: center; width: 28px; height: 28px; background: var(--ink); border-radius: 50%; position: relative; overflow: hidden; }
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; border: 1px solid var(--lime); border-radius: 50%; width: 18px; height: 25px; transform: rotate(28deg); }
.brand-mark::after { transform: rotate(-28deg); }
.brand-mark i { width: 5px; height: 5px; border-radius: 50%; background: var(--lime); z-index: 1; }
.brand-name { font: 500 11px/1 var(--mono); letter-spacing: .09em; white-space: nowrap; }
.brand-name span { color: var(--muted); }
.main-nav { display: flex; align-items: center; gap: clamp(20px, 3vw, 42px); margin-left: auto; margin-right: 14px; }
.main-nav a, .nav-cta { font-size: 12px; font-weight: 600; transition: color .2s ease; }
.main-nav a:hover, .footer-links a:hover { color: var(--rust); }
.nav-cta { padding: 12px 15px; border: 1px solid var(--ink); border-radius: 999px; white-space: nowrap; }
.nav-cta span { margin-left: 8px; color: var(--rust); }
.menu-toggle { display: none; border: 0; background: none; padding: 10px 0 10px 10px; }
.menu-toggle span { width: 21px; display: block; border-top: 1px solid var(--ink); margin-block: 5px; }

.hero { min-height: 660px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 6%; position: relative; padding-block: 75px 92px; }
.hero-copy { max-width: 670px; position: relative; z-index: 2; }
.eyebrow { margin: 0 0 22px; color: var(--muted); font: 500 10px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.eyebrow-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 8px; vertical-align: 1px; background: var(--rust); }
.eyebrow-divider { color: var(--line); padding-inline: 9px; }
h1, h2, h3, p { margin-top: 0; }
.hero h1 { font: 500 clamp(50px, 6.4vw, 84px)/1.18 var(--serif); letter-spacing: -.065em; margin: 0 0 26px; }
.hero h1 em, h2 em { font-style: normal; color: var(--rust); }
.hero-intro { max-width: 530px; font-size: 16px; line-height: 1.9; color: var(--ink-soft); margin-bottom: 32px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 22px; border: 1px solid transparent; border-radius: 999px; min-height: 48px; padding: 0 20px; cursor: pointer; font-weight: 600; font-size: 12px; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-dark { background: var(--ink); color: var(--paper-bright); }
.button-dark:hover { background: var(--rust); }
.text-link { display: inline-flex; align-items: center; gap: 13px; padding: 9px 0; font-size: 12px; font-weight: 600; border-bottom: 1px solid var(--line); }
.text-link span { color: var(--rust); font-size: 17px; transition: transform .2s ease; }
.text-link:hover span { transform: translate(3px, -2px); }
.hero-signature { margin-top: 55px; display: flex; align-items: flex-start; gap: 14px; }
.signature-rule { width: 30px; border-top: 1px solid var(--rust); margin-top: 9px; }
.hero-signature p { font: 500 11px/1.7 var(--mono); letter-spacing: .025em; margin: 0; }
.hero-signature p span { color: var(--muted); font: 400 11px/1.7 var(--sans); }
.hero-index { position: absolute; right: 0; bottom: 38px; color: var(--muted); font: 10px var(--mono); letter-spacing: .1em; }
.hero-art { width: 100%; max-width: 490px; aspect-ratio: 1 / 1.05; justify-self: end; background: var(--paper-deep); padding: 20px; position: relative; transform: rotate(1.2deg); box-shadow: 0 20px 50px rgba(48,45,34,.08); }
.art-index, .art-footer { display: flex; justify-content: space-between; color: var(--muted); font: 9px var(--mono); letter-spacing: .09em; }
.court-diagram { height: calc(100% - 40px); margin-block: 16px; border: 1px solid rgba(23,27,23,.28); position: relative; overflow: hidden; }
.court-frame { position: absolute; inset: 12% 17%; border: 1px solid rgba(23,27,23,.34); transform: rotate(-9deg); }
.court-frame::before, .court-frame::after { content: ""; position: absolute; left: 0; right: 0; border-top: 1px solid rgba(23,27,23,.3); }
.court-frame::before { top: 32%; }.court-frame::after { top: 69%; }
.court-line { position: absolute; top: 0; bottom: 0; width: 1px; background: rgba(23,27,23,.25); }.court-line-a { left: 24%; }.court-line-b { left: 50%; }.court-line-c { left: 76%; }
.hero-ball { width: 40%; max-width: 175px; position: absolute; left: 39%; top: 28%; filter: drop-shadow(0 11px 12px rgba(23,27,23,.14)); animation: float 5s ease-in-out infinite; }
.art-caption { position: absolute; display: grid; grid-template-columns: 24px auto; column-gap: 8px; color: var(--ink); }
.art-caption span { grid-row: span 2; color: var(--rust); font: 10px var(--mono); padding-top: 2px; }
.art-caption b { font: 500 10px var(--mono); letter-spacing: .13em; }
.art-caption small { color: var(--muted); font-size: 9px; margin-top: 3px; }
.art-caption-one { top: 14%; left: 8%; }.art-caption-two { right: 7%; bottom: 17%; }
.art-stamp { position: absolute; top: 12%; right: 10%; border: 1px solid var(--rust); color: var(--rust); padding: 8px 9px; transform: rotate(9deg); font: 8px/1.5 var(--mono); letter-spacing: .1em; }
.art-footer { padding-top: 12px; border-top: 1px solid rgba(23,27,23,.2); }
@keyframes float { 0%,100% { transform: translateY(0) rotate(-4deg); } 50% { transform: translateY(-9px) rotate(2deg); } }

.intro-band { background: var(--ink); color: var(--paper); }
.intro-band-inner { padding-block: 55px 58px; display: grid; grid-template-columns: .55fr 1.2fr .8fr; align-items: start; gap: 30px; }
.intro-band .eyebrow { color: #a9ad9e; margin-top: 10px; }
.intro-statement { font: 500 clamp(25px, 3vw, 38px)/1.55 var(--serif); letter-spacing: -.04em; margin: 0; }
.intro-statement span { color: var(--lime); }
.intro-aside { margin: 9px 0 0; max-width: 270px; color: #c5c7bd; font-size: 12px; line-height: 1.9; }

.method-section { padding-block: 120px 124px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 60px; margin-bottom: 62px; }
.section-heading .eyebrow { margin-bottom: 17px; }
h2 { font: 500 clamp(40px, 5.2vw, 66px)/1.18 var(--serif); letter-spacing: -.06em; margin: 0; }
.section-deck { max-width: 390px; color: var(--muted); font-size: 13px; line-height: 1.9; margin: 0 3% 4px 0; }
.method-track { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.method-step { min-height: 215px; position: relative; padding: 23px 19px 20px 0; border-right: 1px solid var(--line); }
.method-step:not(:first-child) { padding-left: 20px; }
.method-step:last-child { border-right: 0; }
.step-no { font: 10px var(--mono); color: var(--muted); letter-spacing: .08em; }
.step-symbol { display: block; font: 36px/1 var(--serif); color: var(--rust); margin-top: 26px; height: 40px; }
.symbol-notice { color: #809020; }.symbol-task { transform: rotate(-25deg); }.symbol-practice { color: var(--ink); }.symbol-reflect { color: #809020; }
.method-step h3 { font: 600 21px var(--serif); margin: 12px 0 7px; }
.method-step p { min-height: 41px; color: var(--muted); font-size: 11px; line-height: 1.7; margin-bottom: 13px; }
.step-en { color: var(--muted); font: 8px var(--mono); letter-spacing: .075em; }
.method-note { margin-top: 28px; display: grid; grid-template-columns: 28px 1fr auto; gap: 12px; align-items: center; }
.note-mark { color: var(--rust); font-size: 20px; }.method-note p { color: var(--ink-soft); font-size: 12px; margin: 0; }.method-note a { font-size: 11px; font-weight: 600; white-space: nowrap; }.method-note a span { color: var(--rust); margin-left: 8px; }

.examples-section { background: #eae6da; padding-block: 112px 100px; overflow: hidden; }
.examples-heading { margin-bottom: 50px; }.examples-heading .section-deck { max-width: 340px; }
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.guide-card { display: block; position: relative; background: var(--paper-bright); padding: 13px 13px 28px; transition: transform .25s ease, box-shadow .25s ease; }
.guide-card:hover { transform: translateY(-6px); box-shadow: 0 18px 34px rgba(28,29,22,.1); }
.guide-art { position: relative; height: 270px; overflow: hidden; }
.guide-number, .court-label { position: absolute; z-index: 2; font: 9px var(--mono); letter-spacing: .1em; }
.guide-number { top: 18px; left: 18px; }.court-label { right: 18px; bottom: 16px; }
.tennis-art { background: #d8ef63; }.tennis-court { position: absolute; width: 70%; height: 88%; top: 10%; left: 17%; border: 1px solid rgba(23,27,23,.6); transform: perspective(300px) rotateX(4deg) rotateZ(-7deg); }
.tennis-court::before, .tennis-court::after { content: ""; position: absolute; top: 0; bottom: 0; width: 1px; background: rgba(23,27,23,.56); }.tennis-court::before { left: 28%; }.tennis-court::after { right: 28%; }
.tennis-court i { position: absolute; left: 0; right: 0; border-top: 1px solid rgba(23,27,23,.56); }.tennis-court i:nth-child(1) { top: 25%; }.tennis-court i:nth-child(2) { top: 50%; }.tennis-court i:nth-child(3) { top: 75%; }
.tennis-dot { position: absolute; width: 51px; height: 51px; border-radius: 50%; left: 56%; top: 37%; background: var(--paper-bright); box-shadow: 0 9px 20px rgba(0,0,0,.2); }.tennis-dot::after { content: ""; position: absolute; inset: 0 14px; border-inline: 1.5px solid var(--rust); border-radius: 50%; transform: rotate(35deg); }
.squash-art { background: #d3d1c3; }.squash-court { position: absolute; inset: 40px 21% 25px 20%; border: 1px solid var(--ink); transform: skewY(-8deg); }.squash-court::before { content: ""; position: absolute; inset: 13% 13%; border: 1px solid rgba(23,27,23,.55); }.wall { position: absolute; background: var(--rust); }.wall-one { height: 2px; top: 18%; left: 0; right: 0; }.wall-two { height: 2px; bottom: 25%; left: 0; right: 0; }.wall-three { width: 2px; top: 0; bottom: 0; left: 25%; background: var(--ink); }.wall-four { width: 2px; top: 0; bottom: 0; right: 25%; background: var(--ink); }.squash-court b { position: absolute; width: 15px; height: 15px; background: var(--lime); border: 2px solid var(--ink); border-radius: 50%; left: 61%; top: 31%; }
.guide-meta { display: flex; justify-content: space-between; margin: 22px 4px 14px; color: var(--muted); font: 9px var(--mono); letter-spacing: .08em; }
.guide-meta span:last-child { color: var(--rust); }
.guide-card h3 { font: 500 clamp(27px, 3vw, 40px)/1.24 var(--serif); letter-spacing: -.045em; margin: 0 42px 12px 4px; }
.guide-card p { max-width: 400px; font-size: 12px; line-height: 1.8; color: var(--muted); margin: 0 4px; }
.card-arrow { position: absolute; right: 26px; bottom: 30px; color: var(--rust); font-size: 21px; transition: transform .2s ease; }.guide-card:hover .card-arrow { transform: translate(3px, -3px); }
.examples-footnote { display: flex; align-items: center; gap: 13px; margin-top: 23px; color: var(--muted); font-size: 11px; }.examples-footnote p { margin: 0; }.footnote-line { width: 27px; height: 1px; background: var(--rust); }

.coach-section { display: grid; grid-template-columns: 1fr 1fr; gap: 12%; align-items: center; padding-block: 130px; }
.coach-visual { min-height: 430px; position: relative; display: grid; place-items: center; background: #d4d1c1; overflow: hidden; }
.coach-visual::before, .coach-visual::after { content: ""; position: absolute; width: 120%; height: 1px; background: rgba(23,27,23,.3); transform: rotate(-24deg); }.coach-visual::after { transform: rotate(24deg); }
.coach-paper { width: 67%; height: 310px; padding: 23px; background: var(--paper-bright); box-shadow: 0 22px 35px rgba(35,34,26,.18); transform: rotate(-4deg); position: relative; z-index: 1; }
.coach-stamp { position: absolute; right: 17px; top: 19px; border: 1px solid var(--rust); padding: 6px; color: var(--rust); font: 8px/1.4 var(--mono); transform: rotate(8deg); }
.coach-paper-lines { display: grid; gap: 8px; margin-top: 48px; }.coach-paper-lines i { width: 85%; height: 1px; background: var(--line); }.coach-paper-lines i:nth-child(2) { width: 62%; }.coach-paper-lines i:nth-child(4) { width: 70%; }
.coach-quote { position: absolute; left: 27px; top: 116px; font: 500 27px/1.55 var(--serif); }.coach-paper-foot { position: absolute; bottom: 20px; left: 25px; color: var(--muted); font: 8px var(--mono); letter-spacing: .1em; }
.coach-index { position: absolute; z-index: 2; bottom: 16px; left: 18px; font: 8px var(--mono); letter-spacing: .1em; }
.coach-copy { max-width: 500px; }.coach-copy h2 { margin-bottom: 24px; }.coach-lead { color: var(--ink-soft); font-size: 14px; line-height: 1.9; margin-bottom: 12px; }.coach-detail { color: var(--muted); font-size: 12px; line-height: 1.9; margin-bottom: 26px; }
.coach-actions { display: flex; gap: 10px; flex-wrap: wrap; }.button-outline { border-color: var(--line); background: transparent; }.button-outline:hover { border-color: var(--ink); background: var(--paper-deep); }.coach-copy .copy-status { min-height: 18px; margin: 12px 0 0; color: var(--rust); font-size: 11px; }

.library-section { background: var(--paper-deep); overflow: hidden; }.library-layout { min-height: 540px; display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: 8%; padding-block: 80px; }.library-copy { max-width: 430px; }.library-copy h2 { margin-bottom: 22px; }.library-copy p:not(.eyebrow) { color: var(--muted); font-size: 13px; line-height: 1.9; margin-bottom: 25px; }.text-link-dark { border-color: rgba(23,27,23,.32); }
.book-stack { height: 390px; position: relative; display: flex; align-items: center; justify-content: center; }.book-card { position: absolute; width: 225px; height: 315px; padding: 20px; box-shadow: 12px 15px 25px rgba(41,39,28,.14); display: flex; flex-direction: column; justify-content: space-between; font: 10px var(--mono); letter-spacing: .1em; }.book-card-back { background: #b8c2a2; transform: translate(150px, -8px) rotate(8deg); }.book-card-mid { background: #cf7350; transform: translate(78px, 9px) rotate(3deg); }.book-card-front { background: var(--ink); color: var(--paper); transform: translate(-45px, 0) rotate(-5deg); padding: 25px; }.book-card-front span { font: 500 21px/1.35 var(--serif); letter-spacing: -.02em; }.book-card-front b { position: absolute; right: 23px; bottom: 56px; color: var(--lime); font: 38px var(--serif); font-weight: 400; }.book-card-front small { color: #c4c7b8; font: 7px var(--mono); letter-spacing: .13em; }.book-card i { font-style: normal; font-size: 27px; align-self: end; }.book-caption { position: absolute; bottom: 8px; right: 0; color: var(--muted); font: 8px/1.6 var(--mono); letter-spacing: .1em; text-align: right; }

.get-skill-section { background: var(--ink); color: var(--paper-bright); margin-block: 108px; padding: 68px clamp(26px, 7vw, 88px); display: grid; grid-template-columns: 1.2fr .8fr; gap: 9%; align-items: center; position: relative; overflow: hidden; }
.get-skill-section::before { content: ""; position: absolute; width: 540px; height: 540px; border: 1px solid rgba(215,237,98,.16); border-radius: 50%; right: 24%; top: -90%; pointer-events: none; }.get-skill-section::after { content: ""; position: absolute; width: 370px; height: 370px; border: 1px solid rgba(215,237,98,.14); border-radius: 50%; right: 31%; top: -60%; pointer-events: none; }
.get-skill-section .eyebrow, .side-index { color: #a9ad9e; }.get-skill-section h2 { font-size: clamp(38px, 4.3vw, 58px); margin-bottom: 22px; }.get-skill-section h2 em { color: var(--lime); }.get-skill-main > p:not(.eyebrow) { max-width: 530px; color: #c5c7bd; font-size: 13px; line-height: 1.9; margin-bottom: 27px; }.button-lime { background: var(--lime); color: var(--ink); }.button-lime:hover { background: var(--paper-bright); }.button-light-outline { color: var(--paper-bright); border-color: rgba(251,250,244,.5); }.button-light-outline:hover { background: rgba(251,250,244,.1); }
.copy-skill-button, .prompt-copy { display: inline-flex; align-items: center; gap: 9px; border: 0; padding: 0; margin-top: 18px; background: none; color: #c5c7bd; cursor: pointer; font-size: 11px; }.copy-skill-button:hover, .prompt-copy:hover { color: var(--lime); }.copy-status-light { min-height: 17px; margin: 8px 0 0; color: var(--lime); font-size: 11px; }
.prompt-copy-status { min-height: 17px; color: var(--lime); font-size: 10px; line-height: 1.6; margin: 8px 0 0; }
.get-skill-side { border-left: 1px solid rgba(244,240,230,.23); padding: 9px 0 9px 35px; position: relative; z-index: 1; }.side-index { font: 9px var(--mono); letter-spacing: .12em; }.get-skill-side blockquote { margin: 26px 0 13px; font: 500 22px/1.7 var(--serif); }.get-skill-side blockquote i { display: inline-block; min-width: 35px; border-bottom: 1px solid var(--lime); color: var(--lime); font-style: normal; }.get-skill-side > p { margin: 0; color: #a9ad9e; font-size: 11px; line-height: 1.8; }.prompt-copy { margin-top: 21px; color: var(--lime); }
.site-footer { background: #e9e4d6; }.footer-main { min-height: 120px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); }.footer-main > p { margin: 0; color: var(--muted); font-size: 11px; }.footer-links { display: flex; gap: 22px; font-size: 11px; font-weight: 600; }.footer-bottom { min-height: 51px; display: flex; justify-content: space-between; align-items: center; color: var(--muted); font: 8px var(--mono); letter-spacing: .09em; }

/* Long-form reader */
.reader-page { min-height: 100vh; }.reader-header { background: rgba(244,240,230,.96); }.reader-toolbar { display: flex; align-items: center; gap: 9px; }.reader-toolbar .button { min-height: 38px; padding-inline: 14px; font-size: 10px; }.reader-toolbar .button-outline { border-color: var(--line); }
.reading-progress { height: 3px; background: transparent; position: sticky; top: 76px; z-index: 25; }.reading-progress span { display: block; height: 100%; width: 0; background: var(--rust); transition: width .12s linear; }
.reader-shell { width: min(1320px, calc(100% - 64px)); margin: 0 auto; display: grid; grid-template-columns: 220px minmax(0, 760px); gap: clamp(48px, 8vw, 130px); justify-content: center; padding: 74px 0 130px; }
.reader-toc { align-self: start; position: sticky; top: 112px; max-height: calc(100vh - 140px); overflow-y: auto; padding-right: 16px; scrollbar-width: thin; }
.toc-label { color: var(--muted); font: 9px var(--mono); letter-spacing: .12em; margin: 0 0 15px; }.toc-list { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--line); }.toc-list li { margin: 0; }.toc-list li.toc-level-3 { padding-left: 13px; }.toc-list a { display: block; padding: 6px 9px 6px 13px; margin-left: -1px; border-left: 2px solid transparent; color: var(--muted); font-size: 10px; line-height: 1.5; transition: color .2s ease, border-color .2s ease; }.toc-list a:hover, .toc-list a[aria-current="location"] { color: var(--ink); border-left-color: var(--rust); }
.toc-empty { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.reader-content { min-width: 0; }.reader-kicker { display: flex; align-items: center; gap: 10px; color: var(--muted); font: 9px var(--mono); letter-spacing: .1em; margin-bottom: 18px; }.reader-kicker span:first-child { color: var(--rust); }.reader-title { font: 500 clamp(36px, 5.2vw, 62px)/1.2 var(--serif); letter-spacing: -.055em; margin: 0 0 20px; }.reader-lede { max-width: 700px; color: var(--muted); font-size: 14px; line-height: 1.9; margin-bottom: 37px; }.reader-actions { display: flex; flex-wrap: wrap; gap: 9px; padding-bottom: 23px; border-bottom: 1px solid var(--line); margin-bottom: 34px; }.reader-actions .button { min-height: 38px; padding-inline: 13px; font-size: 10px; }.reader-copy-status { min-height: 17px; color: var(--rust); font-size: 11px; margin: -24px 0 25px; }
.doc-body { font: 400 15px/1.95 var(--sans); color: #30352e; overflow-wrap: anywhere; }.doc-body > h2 { font: 500 31px/1.42 var(--serif); letter-spacing: -.045em; margin: 55px 0 18px; padding-top: 15px; scroll-margin-top: 110px; }.doc-body > h3 { font: 600 21px/1.5 var(--serif); margin: 34px 0 11px; scroll-margin-top: 110px; }.doc-body > h4, .doc-body > h5, .doc-body > h6 { font: 600 17px/1.6 var(--serif); margin: 28px 0 9px; scroll-margin-top: 110px; }.doc-body > p { margin: 0 0 19px; }.doc-body > ul, .doc-body > ol { margin: 0 0 22px; padding-left: 1.55em; }.doc-body li { padding-left: .25em; margin: 5px 0; }.doc-body li.list-depth-1 { margin-left: 1em; }.doc-body li.list-depth-2 { margin-left: 2em; }.doc-body li.list-depth-3 { margin-left: 3em; }.doc-body li::marker { color: var(--rust); }.doc-body strong { color: var(--ink); font-weight: 700; }.doc-body em { color: #555d3d; }.doc-body a { color: #9e3d26; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }.doc-body a:hover { color: var(--ink); }.doc-body code { padding: 2px 5px; background: #e8e4d8; border-radius: 3px; font: .87em var(--mono); overflow-wrap: anywhere; }.doc-body pre { padding: 17px; overflow-x: auto; border: 1px solid var(--line); background: var(--paper-bright); font: 12px/1.7 var(--mono); }.doc-body pre code { padding: 0; background: none; }.doc-body blockquote { margin: 27px 0; padding: 4px 0 4px 19px; border-left: 2px solid var(--lime); color: var(--ink-soft); font-family: var(--serif); font-size: 18px; }.doc-body hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }
.doc-table-wrap { overflow-x: auto; margin: 25px 0 30px; }.doc-body table { width: 100%; border-collapse: collapse; font-size: 12px; line-height: 1.7; }.doc-body th { text-align: left; background: var(--paper-deep); color: var(--ink); font-weight: 600; }.doc-body th, .doc-body td { padding: 10px 12px; border: 1px solid var(--line); min-width: 90px; vertical-align: top; }.doc-body tr:nth-child(even) td { background: rgba(251,250,244,.55); }
.doc-frontmatter { margin: 0 0 20px; padding: 10px 14px; background: #e9e4d6; color: var(--muted); font: 10px/1.7 var(--mono); white-space: pre-wrap; }.reader-bottom { margin-top: 65px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }.reader-bottom a { font-size: 11px; font-weight: 600; }.reader-bottom a:hover { color: var(--rust); }.reader-fallback { margin: 15px 0 30px; padding: 16px; background: var(--paper-deep); }.reader-fallback[hidden] { display: none; }.reader-fallback p { font-size: 12px; }.reader-fallback textarea { width: 100%; min-height: 180px; padding: 12px; border: 1px solid var(--line); background: var(--paper-bright); color: var(--ink); font: 11px/1.6 var(--mono); resize: vertical; }.reader-error { padding: 42px 0; }.reader-error h2 { font-size: 34px; margin-bottom: 14px; }.reader-error p { color: var(--muted); line-height: 1.8; }.reader-error a { color: var(--rust); text-decoration: underline; }
.reader-toc-mobile { display: none; }

@media (max-width: 900px) {
  .section-wrap { width: min(100% - 48px, var(--page-width)); }
  .site-header { padding-inline: 24px; }
  .main-nav { gap: 17px; }.main-nav a { font-size: 11px; }
  .hero { min-height: 590px; gap: 4%; }.hero-art { max-width: 380px; }.hero h1 { font-size: clamp(46px, 6.2vw, 65px); }
  .intro-band-inner { grid-template-columns: .55fr 1.1fr .8fr; gap: 20px; }
  .method-step { padding-right: 11px; }.method-step:not(:first-child) { padding-left: 12px; }.method-step p { font-size: 10px; }
  .guide-art { height: 225px; }.coach-section { gap: 8%; }.coach-visual { min-height: 370px; }
  .get-skill-section { gap: 5%; }.reader-shell { grid-template-columns: 180px minmax(0, 700px); gap: 50px; width: calc(100% - 48px); }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 70px; }
  .section-wrap { width: calc(100% - 40px); }
  .site-header { min-height: 64px; padding-inline: 20px; gap: 14px; }
  .brand-name { font-size: 9px; }.brand-mark { width: 25px; height: 25px; }
  .main-nav { display: none; position: absolute; top: 63px; left: 0; right: 0; margin: 0; padding: 15px 20px 20px; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 13px 20px rgba(23,27,23,.07); }
  .main-nav.is-open { display: flex; }.main-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
  .nav-cta { margin-left: auto; padding: 10px 12px; font-size: 10px; }.menu-toggle { display: block; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 42px; padding-block: 65px 68px; }
  .hero h1 { font-size: clamp(48px, 14vw, 70px); }.hero-intro { font-size: 14px; }.hero-signature { margin-top: 34px; }
  .hero-art { width: min(100%, 430px); justify-self: center; aspect-ratio: 1 / .92; }.hero-index { bottom: 22px; }.art-caption-one { left: 5%; }.art-caption-two { right: 4%; }
  .intro-band-inner { padding-block: 39px 42px; grid-template-columns: 1fr; gap: 15px; }.intro-band .eyebrow { margin: 0; }.intro-statement { font-size: 27px; }.intro-aside { max-width: 450px; margin: 0; }
  .method-section { padding-block: 75px 78px; }.section-heading { display: block; margin-bottom: 37px; }.section-heading h2 { font-size: 48px; }.section-deck { margin: 22px 0 0; max-width: 500px; }
  .method-track { grid-template-columns: 1fr; border-top: 1px solid var(--ink); }.method-step, .method-step:not(:first-child) { min-height: auto; padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 42px 42px 1fr; align-items: center; column-gap: 8px; }.step-no { grid-row: 1 / span 2; align-self: start; padding-top: 6px; }.step-symbol { grid-row: 1 / span 2; margin: 0; height: auto; font-size: 29px; }.method-step h3 { font-size: 18px; margin: 0 0 2px; }.method-step p { min-height: 0; margin: 0; }.step-en { grid-column: 3; margin-top: 6px; }.method-note { grid-template-columns: 22px 1fr; align-items: start; }.method-note p { line-height: 1.8; }.method-note a { grid-column: 2; white-space: normal; }
  .examples-section { padding-block: 75px 70px; }.examples-heading { margin-bottom: 32px; }.guide-grid { grid-template-columns: 1fr; gap: 18px; }.guide-art { height: 240px; }.guide-card h3 { font-size: 34px; }.examples-footnote { line-height: 1.7; }
  .coach-section { grid-template-columns: 1fr; gap: 38px; padding-block: 75px; }.coach-visual { min-height: 330px; }.coach-paper { height: 268px; }.coach-paper-lines { margin-top: 36px; }.coach-quote { top: 93px; font-size: 25px; }.coach-copy h2 { font-size: 48px; }.coach-actions { align-items: stretch; }.coach-actions .button { flex: 1; }
  .library-layout { grid-template-columns: 1fr; gap: 25px; padding-block: 70px 55px; }.library-copy h2 { font-size: 48px; }.book-stack { height: 340px; transform: scale(.88); transform-origin: top center; margin-bottom: -40px; }.book-card { width: 195px; height: 278px; }.book-card-front span { font-size: 18px; }
  .get-skill-section { width: 100%; margin-block: 0; padding: 62px 20px; grid-template-columns: 1fr; gap: 36px; }.get-skill-section h2 { font-size: 44px; }.get-skill-side { border-left: 0; border-top: 1px solid rgba(244,240,230,.23); padding: 25px 0 0; }.get-skill-side blockquote { font-size: 20px; margin-top: 18px; }
  .footer-main { padding-block: 26px; flex-wrap: wrap; align-items: flex-start; }.footer-main > p { width: 100%; order: 3; }.footer-links { margin-left: auto; gap: 15px; }.footer-bottom { min-height: 55px; gap: 12px; font-size: 7px; }.footer-bottom span:first-child { max-width: 65%; line-height: 1.5; }
  .reader-toolbar .button { min-height: 34px; padding-inline: 10px; font-size: 9px; gap: 8px; }.reader-toolbar .button:first-child { display: none; }
  .reading-progress { top: 64px; }
  .reader-shell { width: calc(100% - 40px); display: block; padding: 42px 0 85px; }
  .reader-toc { display: none; }.reader-toc-mobile { display: block; margin: 24px 0; border-block: 1px solid var(--line); }.reader-toc-mobile summary { padding: 13px 0; color: var(--muted); cursor: pointer; font: 10px var(--mono); letter-spacing: .1em; list-style: none; }.reader-toc-mobile summary::-webkit-details-marker { display: none; }.reader-toc-mobile summary::after { content: "+"; float: right; color: var(--rust); font-size: 17px; }.reader-toc-mobile[open] summary::after { content: "−"; }.reader-toc-mobile .toc-list { margin: 0 0 15px; }
  .reader-kicker { margin-bottom: 13px; }.reader-title { font-size: clamp(34px, 10vw, 48px); }.reader-lede { font-size: 13px; margin-bottom: 26px; }.reader-actions { gap: 7px; margin-bottom: 25px; }.reader-actions .button { flex: 1; padding-inline: 9px; }.doc-body { font-size: 14px; line-height: 1.9; }.doc-body > h2 { font-size: 26px; margin-top: 43px; }.doc-body > h3 { font-size: 19px; }.doc-body th, .doc-body td { padding: 8px; }.reader-bottom { margin-top: 45px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}