@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.start{inset-inline-start:var(--spacing)}}:root{--canvas:#fbf1c7;--ink:#3c3836;--muted:#7c6f64;--line:#d5c4a1;--signal:#79740e;--panel:#ebdbb2;--rail:clamp(6.5rem, 14vw, 10.5rem)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--canvas);color:var(--ink);text-rendering:optimizelegibility;margin:0;font-family:SFMono-Regular,Cascadia Code,Roboto Mono,Menlo,Monaco,Consolas,Liberation Mono,Hiragino Kaku Gothic ProN,Yu Gothic,monospace;font-size:15px;line-height:1.65}::selection{background:var(--signal);color:var(--canvas)}a{color:inherit}a:focus-visible,summary:focus-visible,button:focus-visible{outline:2px solid var(--signal);outline-offset:4px}.skip-link{z-index:20;background:var(--ink);color:var(--canvas);padding:.55rem .8rem;font-size:.75rem;transition:transform .16s;position:fixed;top:1rem;left:1rem;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}.site-shell{width:min(100% - 4rem,72rem);min-height:100dvh;margin-inline:auto;padding:2.5rem 0 2rem}.masthead{grid-template-columns:var(--rail) 1fr auto;border-bottom:1px solid var(--line);align-items:start;padding-bottom:1.2rem;display:grid}.wordmark{letter-spacing:.04em;text-transform:lowercase;flex-direction:column;width:fit-content;font-size:.72rem;font-weight:600;line-height:1.08;text-decoration:none;display:inline-flex}.location{color:var(--muted);letter-spacing:.07em;text-transform:uppercase;margin:0;font-size:.67rem}.language-switcher{border:1px solid var(--line);border-radius:2px;gap:.25rem;padding:.18rem;display:flex}.language-option{min-width:2.4rem;color:var(--muted);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:1px;padding:.25rem .52rem;font-size:.63rem;font-weight:600;transition:background .16s,color .16s}.language-option:hover{color:var(--ink)}.language-option[aria-pressed=true]{background:var(--signal);color:var(--canvas)}main{padding-top:clamp(5rem,11vw,8.5rem)}.hero,.elsewhere{grid-template-columns:var(--rail) minmax(0, 1fr);display:grid}.rail-label{color:var(--muted);letter-spacing:.1em;text-transform:lowercase;margin:0;font-size:.65rem;line-height:1.35}.hero .rail-label{align-items:center;gap:.55rem;padding-top:.65rem;display:flex}.prompt-mark{color:var(--signal);font-size:.78rem;font-weight:700}.hero-copy h1{max-width:61rem;font:inherit;letter-spacing:-.06em;margin:0;font-size:clamp(2.35rem,5vw,4.25rem);font-weight:500;line-height:1}html[lang=ja] .hero-copy h1{letter-spacing:-.05em;max-width:57rem;font-size:clamp(2.1rem,4.25vw,3.55rem);line-height:1.12}.hero-copy>p{max-width:51rem;color:var(--muted);margin:2rem 0 0;font-size:clamp(.92rem,1.55vw,1.08rem);line-height:1.8}html[lang=ja] .hero-copy>p{line-height:1.85}.chapters{margin:clamp(6rem, 13vw, 11rem) 0 0 var(--rail);grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(2rem,7vw,7rem);display:grid}.chapter{border-top:1px solid var(--line);grid-template-columns:5.25rem minmax(0,1fr);gap:1.2rem;padding-top:1.25rem;display:grid;position:relative}.chapter-now{border-top-color:var(--signal)}.chapter-index p{color:var(--signal);letter-spacing:0;margin:0;font-size:.7rem}.chapter-copy>p{color:var(--muted);margin:0;font-size:.92rem}html[lang=ja] .chapter-copy>p{line-height:1.9}.chapter-copy>p a{color:var(--ink);-webkit-text-decoration-color:var(--line);-webkit-text-decoration-color:var(--line);-webkit-text-decoration-color:var(--line);text-decoration-color:var(--line);text-underline-offset:.18em}.elsewhere{border-top:1px solid var(--line);margin-top:clamp(6rem,12vw,10rem);padding-top:1rem}.elsewhere .rail-label{padding-top:.4rem}.elsewhere-links{border-bottom:1px solid var(--line)}.elsewhere-links a{border-top:1px solid var(--line);grid-template-columns:minmax(8rem,.35fr) minmax(0,1fr) auto;align-items:center;padding:.9rem 0;text-decoration:none;transition:background .18s,color .18s,padding .18s;display:grid}.elsewhere-links a:first-child{border-top:0}.elsewhere-links a:hover,.elsewhere-links a:focus-visible{background:var(--panel);color:var(--signal);padding-inline:.75rem}.link-name{letter-spacing:-.025em;font-size:.92rem;font-weight:600;line-height:1}.link-detail{color:var(--muted);overflow-wrap:anywhere;font-size:.7rem}.link-arrow{color:var(--signal);font-size:1rem;transition:transform .16s}.elsewhere-links a:hover .link-arrow,.elsewhere-links a:focus-visible .link-arrow{transform:translate(.18rem,-.18rem)}footer{border-top:1px solid var(--line);color:var(--muted);letter-spacing:.04em;text-transform:uppercase;justify-content:flex-end;margin-top:clamp(5rem,11vw,8rem);padding-top:1rem;font-size:.64rem;display:flex}footer p{margin:0}@media (max-width:760px){:root{--rail:0rem}.site-shell{width:min(100% - 2rem,42rem);padding-top:1.25rem}.masthead{grid-template-columns:1fr auto;gap:1rem}.location{display:none}main{padding-top:4.5rem}.hero,.elsewhere{display:block}.hero .rail-label{padding:0 0 1.5rem}.hero-copy h1{font-size:clamp(2.2rem,10vw,3.25rem)}html[lang=ja] .hero-copy h1{font-size:clamp(2rem,8.8vw,2.8rem)}.hero-copy>p{max-width:26rem;margin-left:0}.chapters{grid-template-columns:1fr;gap:4rem;margin-left:0}.elsewhere .rail-label{padding:0 0 1rem}.elsewhere-links{grid-template-columns:1fr}.elsewhere-links a{border-top:1px solid var(--line);border-left:0;grid-template-columns:minmax(5.75rem,.55fr) minmax(0,1fr) auto;padding:.8rem 0}.elsewhere-links a:last-child{border-bottom:0}.elsewhere-links a:hover,.elsewhere-links a:focus-visible{padding-inline:.45rem}.link-name{font-size:.8rem}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important}}