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components{.u-display{font-family:var(--ff-display);font-weight:800;font-size:var(--step-display);letter-spacing:-.02em;font-variant-numeric:lining-nums tabular-nums;line-height:.92}.u-display-word{font-size:clamp(2rem,6vw,2.625rem);line-height:1.1}.u-h1{font-family:var(--ff-display);font-weight:800;font-size:var(--step-h1);letter-spacing:-.01em;line-height:1.28}.u-h2{font-family:var(--ff-display);font-weight:800;font-size:var(--step-h2);line-height:1.45}.u-mono{font-family:var(--ff-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em;font-weight:400}.u-meta{font-family:var(--ff-mono);font-weight:400;font-size:var(--step-meta);color:var(--muted);font-variant-numeric:tabular-nums}}@layer 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var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.first\:mt-0:first-child{margin-top:0}@media (min-width:40rem){.sm\:block{display:block}.sm\:hidden{display:none}.sm\:w-64{width:calc(var(--spacing) * 64)}.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:px-6{padding-inline:calc(var(--spacing) * 6)}.sm\:py-16{padding-block:calc(var(--spacing) * 16)}}}:root{--ink:#0e0e12;--paper:#fafaf7;--surface:#fff;--rule:#e7e6e0;--muted:#6b6b74;--accent:#0f6b4f;--accent-wash:#0f6b4f12;--step-display:clamp(2.75rem, 7vw, 4.5rem);--step-h1:clamp(1.625rem, 3.5vw, 2.25rem);--step-h2:1.1875rem;--step-body:1rem;--step-meta:.8125rem}body{--ff-display:var(--font-display-next), var(--font-sans-next), "Hiragino Kaku Gothic ProN", sans-serif;--ff-body:var(--font-sans-next), "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;--ff-mono:var(--font-mono-next), ui-monospace, 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h2{font-family:var(--ff-display);border-top:1px solid var(--rule);margin-top:3.25rem;margin-bottom:.75rem;padding-top:1.25rem;font-size:1.375rem;font-weight:800;line-height:1.4}.prose-lesson h2:first-child{border-top:0;margin-top:0;padding-top:0}.prose-lesson h3{font-family:var(--ff-display);margin-top:2rem;margin-bottom:.5rem;font-size:1.0625rem;font-weight:800}.prose-lesson p{margin-top:1.1rem}.prose-lesson ul,.prose-lesson ol{margin-top:1.1rem;padding-left:1.4rem}.prose-lesson ul{list-style:outside}.prose-lesson ol{list-style:decimal}.prose-lesson li{margin-top:.35rem}.prose-lesson strong{font-weight:700}.prose-lesson a{color:var(--accent);text-underline-offset:3px;text-decoration:underline}.prose-lesson table{border-collapse:collapse;width:100%;margin-top:1.5rem;font-size:.9rem;line-height:1.7;display:block;overflow-x:auto}.prose-lesson th,.prose-lesson td{border:1px solid var(--rule);text-align:left;vertical-align:top;min-width:8rem;padding:.55rem .75rem}.prose-lesson th{background:var(--accent-wash);white-space:nowrap;font-weight:700}.prose-lesson td:first-child{white-space:nowrap;min-width:0;font-weight:700}.prose-lesson code{font-family:var(--ff-mono);background:var(--accent-wash);border-radius:2px;padding:.15em .45em;font-size:.9em}.toc{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin-top:3rem}.toc-toggle{text-align:left;cursor:pointer;background:0 0;border:0;width:100%;padding:.75rem 0;display:block}.toc-here{color:var(--ink);margin-left:.75rem}.toc-list{padding-bottom:1rem;display:none}.toc-list.is-open{display:block}.toc-item{margin-top:.375rem}.toc-link{color:var(--muted);text-decoration:underline;-webkit-text-decoration-color:var(--rule);-webkit-text-decoration-color:var(--rule);-webkit-text-decoration-color:var(--rule);text-decoration-color:var(--rule);text-underline-offset:4px;gap:.375rem;display:flex}.toc-no{text-align:right;flex:none;width:1.625rem}.toc-link.is-current{color:var(--accent);text-decoration-color:currentColor}.prose-lesson h2[id],h2#sec-assignment{scroll-margin-top:1.5rem}@media (min-width:1280px){.toc{--toc-gutter:11px;float:left;width:calc(13.5rem + var(--toc-gutter));margin-top:0;margin-left:calc(-15.5rem - var(--toc-gutter));scrollbar-gutter:stable;scrollbar-width:thin;scrollbar-color:var(--rule) transparent;border-top:0;border-bottom:0;max-height:calc(100vh - 2rem);position:sticky;top:1rem;overflow-y:hidden}.toc:hover,.toc:focus,.toc:focus-within{overflow-y:auto}.toc::-webkit-scrollbar-track{background:0 0}.toc::-webkit-scrollbar-thumb{background:var(--rule);border-radius:3px}.toc-toggle{display:none}.toc-list{padding-bottom:0;display:block}}@media (min-width:1440px){.toc{width:calc(17.5rem + var(--toc-gutter));margin-left:calc(-20.5rem - var(--toc-gutter))}}@media (min-width:1920px){.toc{width:calc(21.5rem + var(--toc-gutter));margin-left:calc(-24.5rem - var(--toc-gutter))}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}