:root{color-scheme:light;--c-page: #ffffff;--c-surface: #f6f6f4;--c-ink: #111111;--c-text: #36352f;--c-muted: #67655e;--c-rule: #e4e3dc;--c-border: rgba(17, 17, 17, .1);--c-accent: #2a78d6;--c-accent-ink: #1b5aa6;--c-accent-wash: rgba(42, 120, 214, .08);--c-button: #226bc5;--c-pass: #0f7a2a;--c-open: #7a5000;--c-open-dot: #e09b00;--c-open-wash: #fff4dc;--c-frame-red: #ae1c28;--c-frame-blue: #21468b;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;--fs-xs: .8125rem;--fs-sm: .875rem;--fs-base: clamp(1rem, .96rem + .18vw, 1.0625rem);--fs-lead: clamp(1.0625rem, .98rem + .4vw, 1.25rem);--fs-h3: clamp(1.125rem, 1.05rem + .35vw, 1.3125rem);--fs-h2: clamp(1.375rem, 1.2rem + .5vw, 1.75rem);--fs-h1: clamp(1.625rem, 1.25rem + 1.4vw, 2.125rem);--fs-stat: clamp(1.5rem, 1.2rem + 1.3vw, 2.125rem);--s-1: .25rem;--s-2: .5rem;--s-3: .75rem;--s-4: 1rem;--s-5: 1.5rem;--s-6: 2rem;--s-7: 3rem;--s-8: 4rem;--s-9: 6rem;--gutter: clamp(1rem, .55rem + 2vw, 2rem);--max-width: 72rem;--radius: 10px;--radius-lg: 16px;--frame-h: 6px;--header-h: 3.75rem;--fig-pad: clamp(.625rem, .4rem + 1vw, 1.125rem);--shadow: 0 1px 2px rgba(17, 17, 17, .04), 0 8px 24px rgba(17, 17, 17, .06)}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + var(--frame-h) + var(--s-4))}@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{margin:0;padding-top:var(--frame-h);background:var(--c-page);color:var(--c-text);font-family:var(--font-sans);font-size:var(--fs-base);line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.2;text-wrap:balance}p,ul,ol,dl,figure{margin:0}p,li,figcaption,td,.justify{text-align:start;-webkit-hyphens:manual;hyphens:manual;overflow-wrap:break-word}@media(max-width:599.98px){p,li,figcaption,td,.justify{-webkit-hyphens:auto;hyphens:auto;hyphenate-limit-chars:10 4 4}}[hidden]{display:none!important}img,video,svg,canvas{display:block;max-width:100%}img,video{height:auto}a{color:var(--c-accent-ink);text-decoration-thickness:1px;text-underline-offset:.18em}a:hover{color:var(--c-accent)}:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px}sup{font-size:.7em;line-height:0}.container{width:100%;max-width:calc(var(--max-width) + 2 * var(--gutter));margin-inline:auto;padding-inline:var(--gutter)}.frame-bar{position:fixed;left:0;right:0;height:var(--frame-h);z-index:100}.frame-bar--top{top:0;background:var(--c-frame-red)}.frame-bar--bottom{bottom:0;background:var(--c-frame-blue)}.skip-link{position:absolute;left:var(--s-4);top:-100px;z-index:200;padding:var(--s-2) var(--s-4);background:var(--c-ink);color:#fff;border-radius:var(--radius);text-decoration:none}.skip-link:focus{top:calc(var(--frame-h) + var(--s-2));color:#fff}.site-header{position:sticky;top:var(--frame-h);z-index:50;background:#fffffff0;-webkit-backdrop-filter:saturate(1.2) blur(8px);backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--c-border)}.site-header__inner{display:flex;align-items:center;gap:var(--s-5);min-height:var(--header-h)}.brand{flex:none;display:inline-flex;align-items:center;gap:.625rem;margin-right:auto;color:var(--c-ink);text-decoration:none;white-space:nowrap}.brand:hover{color:var(--c-ink)}.brand__mark{width:auto;height:28px}.brand__text{display:grid;line-height:1.2}.brand__name{font-size:var(--fs-sm);font-weight:800;letter-spacing:.04em;text-transform:uppercase}.brand__tag{color:var(--c-muted);font-size:.75rem;font-weight:500}.icon{flex:none;width:1.125rem;height:1.125rem;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}.lang__list{display:flex;flex:none;gap:.375rem;padding:0;list-style:none}.lang__opt{display:inline-flex;align-items:center;gap:.4rem;min-height:38px;padding:0 .625rem;border:1px solid var(--c-border);border-radius:999px;color:var(--c-muted);font-size:.75rem;font-weight:700;letter-spacing:.08em;text-decoration:none}.lang__opt:hover{color:var(--c-ink);border-color:#1111114d}.lang__opt[aria-current=page]{color:var(--c-ink);border-color:var(--c-ink)}.lang__flag{flex:none;width:1.375rem;height:.9375rem;border-radius:2px;box-shadow:0 0 0 1px #1111111f}.site-nav__list{display:flex;align-items:center;gap:var(--s-5);list-style:none;padding:0}.site-nav__list li{text-align:left}.site-nav a{display:block;padding:var(--s-2) 0;color:var(--c-muted);font-size:var(--fs-sm);font-weight:500;text-decoration:none;white-space:nowrap;border-bottom:2px solid transparent}.site-nav a:hover{color:var(--c-ink)}.site-nav a[aria-current=true]{color:var(--c-ink);border-bottom-color:var(--c-accent)}.site-nav__home{padding-left:var(--s-5);border-left:1px solid var(--c-rule)}.site-nav__extra{display:none}.site-nav__extra a{display:flex;align-items:center;gap:.625rem}.site-nav__extra .icon{color:var(--c-accent)}.site-header__actions{display:flex;align-items:center;gap:var(--s-2)}.menu-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-page);color:var(--c-ink);cursor:pointer}.menu-toggle .icon{width:22px;height:22px}.menu-toggle__close,.menu-toggle[aria-expanded=true] .menu-toggle__open{display:none}.menu-toggle[aria-expanded=true] .menu-toggle__close{display:inline}@media(max-width:1279.98px){.menu-toggle{display:inline-flex}.site-nav{position:absolute;top:100%;left:0;right:0;display:none;background:var(--c-page);border-bottom:1px solid var(--c-border);box-shadow:var(--shadow)}.site-nav.is-open{display:block}.site-nav__list{flex-direction:column;align-items:stretch;gap:0;max-width:calc(var(--max-width) + 2 * var(--gutter));margin-inline:auto;padding:var(--s-2) var(--gutter) var(--s-4)}.site-nav a{padding:var(--s-3) 0;font-size:var(--fs-base);border-bottom:1px solid var(--c-rule)}.site-nav a[aria-current=true]{border-bottom-color:var(--c-rule);color:var(--c-accent-ink)}.site-nav__home{padding-left:0;border-left:0}.site-nav__extra{display:block}}@media(max-width:599.98px){.brand__tag,.lang__code,.site-header .site-header__mail{display:none}.lang__opt{min-height:40px;padding:0 .5rem}.site-header__inner{gap:var(--s-3)}}.button{display:inline-flex;align-items:center;justify-content:center;gap:var(--s-2);min-height:44px;padding:0 var(--s-5);border:1px solid transparent;border-radius:var(--radius);font:600 var(--fs-sm) / 1.2 var(--font-sans);text-decoration:none;white-space:nowrap;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,color .15s ease}.button--small{min-height:38px;padding:0 var(--s-4)}.button--primary{background:var(--c-button);color:#fff}.button--primary:hover{background:var(--c-accent-ink);color:#fff}.button--outline{border-color:var(--c-border);color:var(--c-ink);background:var(--c-page)}.button--outline:hover{border-color:var(--c-accent);color:var(--c-accent-ink)}.button--outline .icon{color:var(--c-accent)}.button--light{background:#ffffffeb;color:var(--c-ink);border-color:var(--c-border)}.hero{display:grid;gap:var(--s-6);padding-block:clamp(2rem,1.2rem + 3vw,3.5rem) var(--s-6)}@media(min-width:900px){.hero{grid-template-columns:minmax(0,1.12fr) minmax(0,1fr);align-items:center;gap:clamp(2rem,4vw,3.5rem)}}.hero__text{container-type:inline-size}.hero__title{font-size:var(--fs-h1);font-size:clamp(1.5rem,6.3cqi,2.125rem);font-weight:800;letter-spacing:-.015em;line-height:1.15;margin-bottom:var(--s-4);text-wrap:balance}.hero__summary{font-size:var(--fs-lead);color:#2c2b27;line-height:1.6;margin-bottom:var(--s-5)}.facts{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:var(--s-2) var(--s-4);font-size:var(--fs-sm)}.facts__row{display:contents}.facts dt{color:var(--c-muted)}.facts dd{margin:0;color:var(--c-ink);font-weight:600;text-align:left}.hero__media figcaption{margin-top:var(--s-3)}.hero__media .figure__zoom{border-radius:var(--radius-lg)}.viewer{position:relative;aspect-ratio:1 / 1;overflow:hidden;border:1px solid var(--c-border);border-radius:var(--radius-lg);background:linear-gradient(160deg,#cfd3d9,#eef0f2 55%,#cfd3d9);isolation:isolate}@media(min-width:600px){.viewer{aspect-ratio:5 / 4}}.viewer.is-dark{background:radial-gradient(ellipse at 50% 35%,#1c1f26,#0a0b0d)}.viewer__poster,.viewer__canvas{position:absolute;inset:0;width:100%;height:100%}.viewer__poster{object-fit:cover;transition:opacity .4s ease}.viewer__canvas{opacity:0;transition:opacity .4s ease;touch-action:pan-y}.viewer[data-state=ready] .viewer__canvas{opacity:1}.viewer[data-state=ready] .viewer__poster{opacity:0}.viewer__label{position:absolute;top:var(--s-4);left:var(--s-4);right:var(--s-4);z-index:2;pointer-events:none}.viewer__label strong{display:block;color:#1d2026;font-size:var(--fs-sm)}.viewer__hint{display:block;color:#4b515c;font-size:var(--fs-xs);margin-top:2px;text-align:left}.viewer.is-dark .viewer__label strong{color:#edeff2}.viewer.is-dark .viewer__hint{color:#9aa2b1}.viewer[data-state=loading] .viewer__hint:after{content:"\2026"}.viewer__load{position:absolute;left:50%;bottom:var(--s-4);transform:translate(-50%);z-index:3;width:max-content;max-width:calc(100% - 2rem)}.viewer__dock{position:absolute;left:50%;bottom:var(--s-3);transform:translate(-50%);z-index:3;display:flex;align-items:center;gap:2px;width:max-content;max-width:calc(100% - 1.5rem);padding:4px;overflow-x:auto;scrollbar-width:none;background:#1a1d24db;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:12px}.viewer__dock::-webkit-scrollbar{display:none}.viewer__btn{display:inline-flex;align-items:center;gap:6px;flex:none;min-height:36px;min-width:36px;justify-content:center;padding:0 10px;border:1px solid transparent;border-radius:8px;background:transparent;color:#b6bcc8;font:500 var(--fs-xs) / 1 var(--font-sans);cursor:pointer}.viewer__btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}.viewer__btn:hover{background:#ffffff14;color:#fff}.viewer__btn[aria-pressed=true]{background:#c8853e33;color:#e2a25c;border-color:#c8853e66}.viewer__btn[data-action=spin][aria-pressed=true],.viewer__btn[data-action=bg][aria-pressed=false],.viewer__btn[data-action=wire][aria-pressed=false]{background:transparent;color:#b6bcc8;border-color:transparent}.viewer__btn:focus-visible{outline-color:#e2a25c;outline-offset:1px}.viewer__btn--touch{display:none}.viewer.is-touch .viewer__btn--touch{display:inline-flex}.viewer__sep{width:1px;align-self:stretch;margin:6px 4px;background:#ffffff24;flex:none}@media(max-width:599.98px){.viewer__btn span{display:none}.viewer__btn--touch span{display:inline}.viewer__hint{display:none}.viewer.is-touch .viewer__hint{display:block}}.results__list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));list-style:none;padding:0;border-top:1px solid var(--c-rule);border-bottom:1px solid var(--c-rule)}.results__item{display:flex;flex-direction:column;gap:var(--s-1);padding:var(--s-4) var(--s-4) var(--s-4) 0;text-align:left}.results__item:nth-child(2n){padding-left:var(--s-4);border-left:1px solid var(--c-rule)}.results__item:nth-child(n+3){border-top:1px solid var(--c-rule)}@media(min-width:900px){.results__list{grid-template-columns:repeat(4,minmax(0,1fr))}.results__item{padding:var(--s-5) var(--s-5) var(--s-5) 0}.results__item+.results__item{padding-left:var(--s-5);border-left:1px solid var(--c-rule)}.results__item:nth-child(n+3){border-top:0}}.results__value{color:var(--c-ink);font-size:var(--fs-stat);font-weight:800;letter-spacing:-.01em;line-height:1.1;font-variant-numeric:tabular-nums}.results__value small{font-size:.55em;font-weight:700;margin-left:2px}.results__value sup{font-size:.5em;vertical-align:super;line-height:0}.results__label{color:var(--c-muted);font-size:var(--fs-sm);line-height:1.45;text-align:left}.skills{display:grid;gap:var(--s-3);padding-block:var(--s-5) 0}@media(min-width:900px){.skills{grid-template-columns:10rem minmax(0,1fr);gap:var(--s-5);align-items:start}}.skills__title{font-size:var(--fs-base);font-weight:700;padding-top:6px}.tag-list{display:flex;flex-wrap:wrap;gap:var(--s-2);list-style:none;padding:0}.tag-list li{padding:6px 12px;border:1px solid var(--c-border);border-radius:999px;background:var(--c-surface);color:#2b2a27;font-size:var(--fs-sm);font-weight:600;line-height:1.35;text-align:left}.section{padding-top:clamp(3rem,2rem + 4vw,5rem)}.section__head{margin-bottom:clamp(1.5rem,1rem + 2vw,2.25rem)}.section__title{font-size:var(--fs-h2);font-weight:800;letter-spacing:-.01em;margin-bottom:var(--s-3)}.section__intro{color:var(--c-muted);font-size:var(--fs-lead);line-height:1.55}.section__head--sub{margin-top:clamp(2rem,1.5rem + 2vw,3rem)}.section__subtitle{font-size:var(--fs-h3);font-weight:750;margin-bottom:var(--s-2)}.swatch-key{display:inline-flex;align-items:center;gap:6px;margin-right:var(--s-3);white-space:nowrap}.swatch{width:10px;height:10px;border-radius:3px;border:1px solid rgba(17,17,17,.2)}.swatch--steel{background:#c9cdd2}.swatch--a286{background:#8c7350}.steps{list-style:none;padding:0;counter-reset:none}.step{position:relative;display:grid;grid-template-columns:2.25rem minmax(0,1fr);column-gap:var(--s-4);padding-bottom:clamp(2.5rem,2rem + 2vw,3.5rem);text-align:left}.step:last-child{padding-bottom:0}.step:before{content:"";position:absolute;left:calc(1.125rem - 1px);top:2.75rem;bottom:.5rem;width:2px;background:var(--c-rule)}.step:last-child:before{display:none}.step__marker{position:relative;z-index:1;display:grid;place-items:center;width:2.25rem;height:2.25rem;border:2px solid var(--c-accent);border-radius:50%;background:var(--c-page);color:var(--c-accent-ink);font-weight:800;font-size:var(--fs-sm);font-variant-numeric:tabular-nums}.step__body{min-width:0}.step__media{grid-column:2;min-width:0;display:grid;gap:var(--s-4);margin-top:var(--s-5);align-content:start}@media(min-width:600px){.step__media--grid{grid-template-columns:repeat(2,minmax(0,1fr))}.step__media--grid>.figure--wide,.step__media--grid>.table-wrap{grid-column:1 / -1}.figure--pair .figure__zoom,.figure--short .figure__zoom{aspect-ratio:4 / 3}.figure--short .figure__zoom{aspect-ratio:16 / 9}.figure--short .figure__zoom img,.figure--pair .figure__zoom img{height:100%;object-fit:contain}.figure--pair.figure--bleed .figure__zoom img{object-fit:cover;object-position:left center}.figure--pair.figure--portrait .figure__zoom{aspect-ratio:4 / 5}.figure--pair.figure--portrait.figure--bleed .figure__zoom img{object-position:center}}@media(min-width:1024px){.step{grid-template-columns:2.75rem minmax(0,1fr) minmax(0,1.1fr);column-gap:clamp(1.5rem,2.5vw,2.25rem)}.step:before{left:calc(1.375rem - 1px);top:3.25rem}.step__marker{width:2.75rem;height:2.75rem;font-size:var(--fs-base)}.step__media{grid-column:3;margin-top:0}}.step__title{font-size:var(--fs-h3);font-weight:750;padding-top:.35rem}.step__tool{color:var(--c-muted);font-size:var(--fs-sm);font-weight:600;margin:var(--s-1) 0 var(--s-4);text-align:left}.step__body>p:not(.step__tool){margin-bottom:var(--s-3)}.step__facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s-3) var(--s-5);margin-top:var(--s-4);padding-top:var(--s-4);border-top:1px solid var(--c-rule)}.step__facts dt{color:var(--c-muted);font-size:var(--fs-xs)}.step__list{display:grid;gap:var(--s-2);margin:0 0 var(--s-3);padding-left:1.25rem}.step__list li::marker{color:var(--c-accent-ink);font-weight:700}.objective-list{margin-top:var(--s-4);color:var(--c-text)}@media(min-width:1024px){.step--text .step__body{grid-column:2 / -1}}.step--text .step__facts{grid-template-columns:repeat(auto-fit,minmax(11rem,1fr))}.checklist{display:grid;gap:var(--s-3);margin:var(--s-5) 0;padding:0;list-style:none}.checklist li{position:relative;padding-left:2.1rem;color:var(--c-text);line-height:1.6}.checklist li:before{position:absolute;left:0;top:.1rem;display:grid;place-items:center;width:1.45rem;height:1.45rem;border-radius:50%;font-size:var(--fs-xs);font-weight:800;color:#fff}.checklist__item--done:before{content:"\2713";background:var(--c-pass)}.checklist__item--open:before{content:"!";background:var(--c-open-dot)}.chart__key--track:before{width:10px;height:10px;border:0;border-radius:2px;background:#dcdbd4}.table-note{margin-top:var(--s-2);color:var(--c-muted);font-size:var(--fs-xs)}.chart__key--dot-red{color:var(--c-frame-red)}.chart__key.chart__key--dot-red:before{flex:none;width:9px;height:9px;border:0;border-radius:50%;background:var(--c-frame-red)}@media(min-width:720px){.vcheck--pairs .vcheck__figs{grid-template-columns:repeat(2,minmax(0,1fr))}.vcheck--pairs .vcheck__figs>.figure--wide,.vcheck--pairs .vcheck__figs>.table-wrap,.vcheck--pairs .vcheck__figs>.accordion{grid-column:1 / -1}}@media(min-width:900px){.chart.chart--single{grid-template-columns:minmax(0,1fr)}}.checklist strong{display:block;color:var(--c-ink);font-weight:700}.checks__note{color:var(--c-text)}.step__facts dd{margin:2px 0 0;color:var(--c-ink);font-weight:700;font-variant-numeric:tabular-nums;text-align:left}.callout{margin-top:var(--s-4);padding:var(--s-3) var(--s-4);border-left:3px solid var(--c-open-dot);border-radius:0 var(--radius) var(--radius) 0;background:var(--c-open-wash);color:var(--c-open);font-size:var(--fs-sm)}.callout a{color:var(--c-open);font-weight:700}.figure{min-width:0}.figure__zoom,.figure__video{display:flex;align-items:center;justify-content:center;padding:var(--fig-pad);background:#fff;border:1px solid var(--c-border);border-radius:var(--radius)}.figure__zoom{cursor:zoom-in}.figure__zoom:hover{border-color:#11111138}.figure img,.figure video{width:100%;border:0;border-radius:2px;background:#fff}.figure--bleed .figure__zoom{padding:0;overflow:hidden}.figure--bleed img{border-radius:0;max-height:none!important}.figure--bleed .figure__video{padding:0;overflow:hidden}.figure--bleed video{border-radius:0}.figure figcaption,.hero__media figcaption{margin-top:var(--s-2);color:var(--c-muted);font-size:var(--fs-xs);line-height:1.5}.figure__video{position:relative}.video-toggle{position:absolute;right:calc(var(--fig-pad) + var(--s-2));bottom:calc(var(--fig-pad) + var(--s-2));min-height:32px;padding:0 var(--s-3);border:0;border-radius:999px;background:#111111b8;color:#fff;font:600 var(--fs-xs) / 1 var(--font-sans);cursor:pointer}.media-grid{display:grid;gap:var(--s-4);margin-block:var(--s-4) var(--s-5)}@media(min-width:900px){.media-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.media-grid .figure img{max-height:400px;object-fit:contain}.media-grid>:only-child{grid-column:1 / -1;width:100%;max-width:46rem;margin-inline:auto}.media-grid>.figure:last-child:nth-child(odd):not(:only-child){grid-column:1 / -1;width:100%;max-width:46rem;margin-inline:auto}.media-row{display:grid;gap:var(--s-4);margin-block:var(--s-4) var(--s-5);align-items:start}@media(min-width:600px){.media-row--flow{grid-template-columns:1.103fr .78fr 1.273fr}.media-row--fea-a{grid-template-columns:1.578fr 2.395fr}.media-row--fea-b{grid-template-columns:1.538fr .943fr;max-width:56rem;margin-inline:auto}}.media-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s-4);margin-block:var(--s-4) 0}@media(min-width:600px){.media-strip{grid-template-columns:repeat(3,minmax(0,1fr))}}.media-strip .figure figcaption{text-align:left}.figure.figure--tall.figure--bleed{width:100%;max-width:22rem;margin-inline:auto}.media-grid>.figure.figure--tall.figure--bleed:last-child:nth-child(odd){max-width:22rem}.figure--tall img{max-width:22rem}.check-summary{display:flex;flex-wrap:wrap;gap:var(--s-2) var(--s-5);margin-bottom:var(--s-4);text-align:left}.status{display:inline-flex;align-items:center;gap:7px;font-size:var(--fs-sm);font-weight:700;white-space:nowrap}.status:before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor;flex:none}.status--pass{color:var(--c-pass)}.status--open{color:var(--c-open)}.status--open:before{background:var(--c-open-dot)}.status--fail{color:var(--c-frame-red)}.checks .status{white-space:normal;align-items:flex-start}.checks .status:before{margin-top:.42em}.check-result{display:grid;gap:var(--s-3) var(--s-6);align-items:center;padding:var(--s-5);margin-bottom:var(--s-6);background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius)}@media(min-width:900px){.check-result{grid-template-columns:minmax(0,14rem) minmax(0,1fr)}}.check-result__value{color:var(--c-ink);font-size:clamp(2.25rem,1.9rem + 1.5vw,3rem);font-weight:800;line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;text-align:left}.check-result__value small{font-size:.5em;font-weight:700;color:var(--c-muted);margin-left:2px;letter-spacing:0}.check-result__caption{margin-top:var(--s-2);color:var(--c-muted);font-size:var(--fs-sm);line-height:1.45;text-align:left}.check-result__text{color:var(--c-text)}.chart--first{margin-top:0;margin-bottom:var(--s-6)}@media(min-width:900px){.chart.chart--first{grid-template-columns:minmax(0,1fr)}}.pills{display:flex;flex-wrap:wrap;gap:var(--s-2);margin-block:var(--s-3)}.pill{display:inline-flex;flex-direction:column;gap:2px;max-width:100%;padding:var(--s-2) var(--s-3);border:1px solid var(--c-border);border-left:3px solid var(--c-rule);border-radius:6px;background:var(--c-surface);color:var(--c-muted);font-size:var(--fs-xs);line-height:1.35;text-align:left}.pill b{color:var(--c-ink);font-size:var(--fs-sm);font-weight:750;font-variant-numeric:tabular-nums}.pill--good{border-left-color:var(--c-pass)}.pill--warn{border-left-color:var(--c-open-dot)}.table-wrap{overflow-x:auto}.checks{width:100%;border-collapse:collapse;font-size:var(--fs-sm);border-top:2px solid var(--c-ink)}.checks thead th{padding:var(--s-3) var(--s-4) var(--s-3) 0;border-bottom:1px solid var(--c-rule);color:var(--c-muted);font-size:var(--fs-xs);font-weight:600;text-align:left}.checks tbody th,.checks td{padding:var(--s-3) var(--s-4) var(--s-3) 0;border-bottom:1px solid var(--c-rule);vertical-align:top}.checks tbody th{width:28%;color:var(--c-ink);font-weight:650;text-align:left}.checks td{color:var(--c-text);text-align:left;-webkit-hyphens:manual;hyphens:manual}.checks th:last-child,.checks td:last-child{padding-right:0;text-align:left}@media(max-width:719.98px){.checks thead{display:none}.checks,.checks tbody,.checks tr,.checks th,.checks td{display:block;width:auto}.checks tbody th{width:auto}.checks tr{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--s-1) var(--s-3);padding-block:var(--s-3);border-bottom:1px solid var(--c-rule)}.checks tbody th,.checks td{padding:0;border:0}.checks tbody th{grid-column:1;grid-row:1}.checks td:last-child{grid-column:2;grid-row:1}.checks td:nth-of-type(1),.checks td:nth-of-type(2){grid-column:1 / -1}.checks td[data-label]:before{content:attr(data-label) ": ";color:var(--c-muted)}.checks td[data-label]{font-size:var(--fs-xs);color:var(--c-muted)}.checks td.td--main{font-size:inherit;color:var(--c-text)}.checks caption{display:block}.checks--3 td:last-child{grid-column:1 / -1;grid-row:auto}}.chart{display:grid;gap:var(--s-4) var(--s-6);margin-top:clamp(2rem,1.5rem + 2vw,3rem);align-items:center}@media(min-width:900px){.chart{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr)}}.chart__title{font-size:var(--fs-base);font-weight:700;margin-bottom:2px}.chart__sub{color:var(--c-muted);font-size:var(--fs-sm);text-align:left}.chart__legend{display:flex;flex-wrap:wrap;gap:var(--s-1) var(--s-4);list-style:none;padding:0;margin:var(--s-2) 0 var(--s-1)}.chart__key{display:inline-flex;align-items:center;gap:6px;color:var(--c-muted);font-size:var(--fs-xs);text-align:left}.chart__key:before{content:"";width:16px;border-top:2px dashed currentColor}.chart__key--series{color:var(--c-accent-ink)}.chart__key--series:before{border-top:3px solid var(--c-accent)}.chart__key--ref{color:var(--c-pass)}.chart__key--dot-open,.chart__key--target{color:var(--c-open)}.chart__key--objective{color:var(--c-frame-red)}.chart__key--objective:before{border-top:3px solid var(--c-frame-red)}.chart__key--volume{color:#6f31ad}.chart__key--volume:before{border-top:3px solid #8a3fd1}.chart__note{margin-top:var(--s-3);color:var(--c-text);font-size:var(--fs-sm);line-height:1.6}.chart__key--dot-open:before{width:9px;height:9px;border:0;border-radius:50%;background:var(--c-open-dot)}.chart__svg{width:100%;height:auto;overflow:visible}.chart__svg text{font-family:var(--font-sans)}.chart__text p+p{margin-top:var(--s-3)}.chart-tip{position:fixed;z-index:150;max-width:15rem;padding:var(--s-2) var(--s-3);border-radius:8px;background:var(--c-ink);color:#fff;font-size:var(--fs-xs);line-height:1.45;pointer-events:none;opacity:0;transition:opacity .12s ease}.chart-tip.is-visible{opacity:1}.chart-tip strong{display:block}.chart__key--bar-pass:before,.chart__key--bar-open:before{width:10px;height:10px;border:0;border-radius:2px}.chart__key--bar-pass{color:var(--c-accent-ink)}.chart__key--bar-pass:before{background:var(--c-accent)}.chart__key--bar-open{color:var(--c-open)}.chart__key--bar-open:before{background:var(--c-open-dot)}.chart__key--bar-final{color:var(--c-pass)}.chart__key--bar-final:before{width:10px;height:10px;border:0;border-radius:2px;background:var(--c-pass)}.chart__key--bench{color:var(--c-pass)}.chart__key--bench:before{border-top:3px solid var(--c-pass)}.chart__key--superseded{color:var(--c-muted)}.diagnosis{margin-top:clamp(2rem,1.5rem + 2vw,3rem);padding-top:var(--s-5);border-top:1px solid var(--c-rule)}.diagnosis__title{font-size:var(--fs-h3);font-weight:750;margin-bottom:var(--s-4)}.diagnosis__title--sub{margin-top:var(--s-6)}.diagnosis__intro{color:var(--c-muted);margin-bottom:var(--s-4)}.numbered{display:grid;gap:0 var(--s-6);margin:0;padding:0;list-style:none;counter-reset:item}@media(min-width:1024px){.numbered{grid-template-columns:repeat(2,minmax(0,1fr))}.numbered li:last-child:nth-child(odd){grid-column:1 / -1}}.numbered li{position:relative;padding:var(--s-3) 0 var(--s-4) 2.25rem;border-top:1px solid var(--c-rule);color:var(--c-text);font-size:var(--fs-sm);line-height:1.6;counter-increment:item}.numbered li:before{content:counter(item);position:absolute;left:0;top:calc(var(--s-3) + 1px);display:grid;place-items:center;width:1.5rem;height:1.5rem;border:1.5px solid var(--c-accent);border-radius:50%;color:var(--c-accent-ink);font-size:var(--fs-xs);font-weight:700;font-variant-numeric:tabular-nums}.diagnosis__grid{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--s-5)}.diagnosis__grid>*{min-width:0}.diagnosis__text p+p{margin-top:var(--s-3)}.diagnosis__figs{display:grid;gap:var(--s-5);align-content:start}.diagnosis__figs .chart__title{margin-bottom:var(--s-2)}.diagnosis__figs .figure img{aspect-ratio:16 / 9;object-fit:cover;object-position:center 70%}@media(min-width:900px){.diagnosis__grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:var(--s-6)}}.defects{display:grid;gap:0 var(--s-6);margin:0}@media(min-width:720px){.defects{grid-template-columns:repeat(2,minmax(0,1fr))}}.defects__item{padding-block:var(--s-3) var(--s-4);border-top:1px solid var(--c-rule)}.defects dt{color:var(--c-ink);font-weight:700;margin-bottom:var(--s-1)}.defects dd{margin:0;color:var(--c-text);font-size:var(--fs-sm);line-height:1.6;text-align:start}.lessons{display:grid;list-style:none;padding:0;column-gap:var(--s-6)}@media(min-width:720px){.lessons{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson:last-child:nth-child(odd){grid-column:1 / -1}}.lesson{padding-block:var(--s-4) var(--s-5);border-top:1px solid var(--c-rule);text-align:left}.lesson__kind{font-size:var(--fs-xs);font-weight:700;margin-bottom:var(--s-1);text-align:left}.lesson__kind--next{color:var(--c-accent-ink)}.lesson__kind--lesson{color:var(--c-pass)}.lesson__kind--flag{display:inline-flex;align-items:center;gap:6px;color:var(--c-open)}.lesson__kind--flag:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-open-dot)}.lesson__title{font-size:var(--fs-base);font-weight:700;margin-bottom:var(--s-2)}.lesson p:not(.lesson__kind){color:var(--c-text);font-size:var(--fs-sm);line-height:1.6}.accordion{border-top:2px solid var(--c-ink)}.accordion__item{border-bottom:1px solid var(--c-rule)}.accordion__summary{display:flex;align-items:center;justify-content:space-between;gap:var(--s-4);min-height:44px;padding-block:var(--s-4);list-style:none;cursor:pointer}.accordion__summary::-webkit-details-marker{display:none}.accordion__heading{display:block;min-width:0}.accordion__title{display:block;color:var(--c-ink);font-size:var(--fs-h3);font-weight:700;line-height:1.3}.accordion__desc{display:block;margin-top:2px;color:var(--c-muted);font-size:var(--fs-sm)}.accordion__icon{position:relative;flex:none;width:2rem;height:2rem;border:1px solid var(--c-border);border-radius:50%}.accordion__icon:before,.accordion__icon:after{content:"";position:absolute;top:50%;left:50%;width:11px;height:2px;margin:-1px 0 0 -5.5px;background:var(--c-ink);border-radius:1px;transition:transform .2s ease}.accordion__icon:after{transform:rotate(90deg)}.accordion__item[open] .accordion__icon:after{transform:rotate(0)}.accordion__summary:hover .accordion__title{color:var(--c-accent-ink)}.accordion__body{padding-bottom:var(--s-6)}.accordion__lead{color:var(--c-muted);margin-bottom:var(--s-2)}.prose h3,.prose h4{font-size:var(--fs-base);margin:var(--s-5) 0 var(--s-2)}.prose h3:first-child,.prose h4:first-child{margin-top:var(--s-1)}.prose p{margin-bottom:var(--s-3)}.prose ul{padding-left:1.25rem;margin-bottom:var(--s-3)}.prose li{margin-bottom:var(--s-1)}.prose li::marker{color:var(--c-accent)}.formula{max-width:100%;overflow-x:auto;padding:var(--s-3) var(--s-4);border:1px solid var(--c-border);border-radius:8px;background:var(--c-surface);color:var(--c-ink);font-family:var(--font-mono);font-size:var(--fs-sm);white-space:nowrap;text-align:left;-webkit-hyphens:none;hyphens:none}@media(max-width:599.98px){.formula{white-space:normal;line-height:1.8}}.formula__note{display:block;margin-top:2px;color:var(--c-muted);font-family:var(--font-sans);font-size:var(--fs-xs);word-spacing:normal;line-height:1.5}.formula--wrap{white-space:normal;line-height:1.9;word-spacing:.35em}.formula__term{white-space:nowrap;word-spacing:normal}.overdot{position:relative;display:inline-block;line-height:1}.overdot:after{content:"";position:absolute;left:50%;top:.03em;width:.18em;height:.18em;margin-left:-.09em;border-radius:50%;background:currentColor}.data-table{width:100%;max-width:36rem;border-collapse:collapse;font-size:var(--fs-sm);margin-block:var(--s-2) var(--s-4)}.data-table th,.data-table td{padding:var(--s-2) var(--s-4) var(--s-2) 0;border-bottom:1px solid var(--c-rule);text-align:left;font-variant-numeric:tabular-nums}.data-table thead th{color:var(--c-muted);font-size:var(--fs-xs);font-weight:600}.data-table tbody th{color:var(--c-ink);font-weight:600}.th-short{display:none}@media(max-width:599.98px){.th-short{display:inline}.th-long{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.data-table--compact{font-size:var(--fs-xs)}.data-table--compact th,.data-table--compact td{padding-right:var(--s-2)}.data-table--compact th:last-child,.data-table--compact td:last-child{padding-right:0}}.data-table tbody .data-table__group th{padding-top:var(--s-4);color:var(--c-muted);font-size:var(--fs-xs);font-weight:700;letter-spacing:.04em;text-transform:uppercase}.vcheck{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--s-4);padding-block:var(--s-5);border-top:1px solid var(--c-rule)}.vcheck>*,.accordion__body,.prose{min-width:0}.vcheck:first-child{border-top:0;padding-top:var(--s-1)}@media(min-width:900px){.vcheck{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:var(--s-6);align-items:start}.vcheck--solo{grid-template-columns:minmax(0,1fr)}}.vcheck__result{color:var(--c-ink);font-size:var(--fs-sm);font-weight:700;text-align:left}.vcheck__result .status{margin-left:var(--s-2)}.vcheck .figure img{max-height:340px;object-fit:contain}.vcheck__figs{display:grid;gap:var(--s-4);align-content:start}.data-table--wide{max-width:none}.table-caption{caption-side:top;padding-bottom:var(--s-2);color:var(--c-muted);font-size:var(--fs-xs);text-align:left}.data-table tr.is-chosen th,.data-table tr.is-chosen td{background:var(--c-accent-wash)}.data-table tr.is-chosen th{box-shadow:inset 3px 0 0 var(--c-accent);padding-left:var(--s-3)}@media(max-width:719.98px){.stack-table thead{display:none}.stack-table,.stack-table tbody,.stack-table tr,.stack-table th,.stack-table td{display:block;width:auto}.stack-table caption{display:block}.stack-table tr{padding-block:var(--s-3);border-bottom:1px solid var(--c-rule)}.stack-table tbody th,.stack-table td{padding:0;border:0}.stack-table tbody th{margin-bottom:var(--s-1)}.stack-table td{padding-block:1px}.stack-table td[data-label]:before{content:attr(data-label) ": ";color:var(--c-muted)}.stack-table tr.is-chosen{background:var(--c-accent-wash);box-shadow:inset 3px 0 0 var(--c-accent);padding-left:var(--s-3)}.stack-table tr.is-chosen th,.stack-table tr.is-chosen td{background:none;box-shadow:none;padding-left:0}}.contact{margin-top:clamp(3rem,2rem + 4vw,5rem);background:var(--c-surface);border-top:1px solid var(--c-rule)}.contact__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--s-5);padding-block:clamp(2rem,1.5rem + 2vw,3rem)}.contact__title{font-size:var(--fs-h2);font-weight:800;margin-bottom:var(--s-1)}.contact__text p{color:var(--c-muted)}.contact__actions{display:flex;flex-wrap:wrap;gap:var(--s-3)}@media(max-width:599.98px){.contact__actions,.contact__actions .button{width:100%}}.site-footer{border-top:1px solid var(--c-rule);padding-bottom:var(--frame-h)}.site-footer__inner{display:flex;justify-content:space-between;gap:var(--s-4);padding-block:var(--s-5);color:var(--c-muted);font-size:var(--fs-sm)}.site-footer p{text-align:left}.site-footer__top{display:inline-flex;align-items:center;gap:.375rem}.site-footer__top .icon{width:1rem;height:1rem}.lightbox{width:min(96vw,1200px);max-width:none;max-height:94vh;padding:0;border:0;border-radius:var(--radius-lg);background:#fff;overflow:hidden}.lightbox::backdrop{background:#0a0a0cd1}.lightbox__bar{display:flex;align-items:center;justify-content:space-between;gap:var(--s-4);padding:var(--s-2) var(--s-2) var(--s-2) var(--s-4);border-bottom:1px solid var(--c-rule)}.lightbox__caption{color:var(--c-text);font-size:var(--fs-sm);text-align:left}.lightbox__close{display:inline-flex;align-items:center;justify-content:center;flex:none;width:44px;height:44px;border:0;border-radius:var(--radius);background:transparent;color:var(--c-ink);cursor:pointer}.lightbox__close:hover{background:var(--c-surface)}.lightbox__close .icon{width:20px;height:20px}.lightbox__stage{max-height:calc(94vh - 62px);overflow:auto;overscroll-behavior:contain;background:#fff}.lightbox__img{display:block;width:100%;max-height:calc(94vh - 62px);padding:var(--s-4);object-fit:contain;background:#fff;cursor:zoom-in}.lightbox__img.is-bleed{padding:0}.lightbox__stage.is-zoomed .lightbox__img{max-width:none;max-height:none;margin:auto;padding:0;cursor:zoom-out}.lightbox__stage.is-dragging .lightbox__img{cursor:grabbing}.lightbox__img{-webkit-user-select:none;user-select:none}.lightbox__bar{flex-wrap:nowrap}.lightbox__caption{flex:1 1 auto;min-width:0}.lightbox__zoom{display:inline-flex;align-items:center;gap:6px;flex:none;min-height:36px;padding:0 var(--s-3);border:1px solid var(--c-border);border-radius:999px;background:var(--c-page);color:var(--c-ink);font:600 var(--fs-xs) / 1 var(--font-sans);cursor:pointer}.lightbox__zoom:hover{border-color:var(--c-accent);color:var(--c-accent-ink)}.lightbox__zoom svg{fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}.lightbox__zoom[aria-pressed=true] .lightbox__plus{display:none}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}@media print{.frame-bar,.site-header,.skip-link,.viewer__dock,.viewer__load,.video-toggle,.contact__actions,.site-footer a,.lightbox{display:none!important}body{padding:0;font-size:11pt;color:#000}.viewer{aspect-ratio:5 / 4;break-inside:avoid}.viewer__canvas{display:none}.viewer__poster{opacity:1!important}.step,.vcheck,.figure,.lesson,.checks tr{break-inside:avoid}a{color:#000;text-decoration:none}.contact{background:none}}.not-found{padding-block:clamp(3rem,8vw,6rem)}.not-found .section__intro+.section__intro{margin-top:var(--s-3)}.not-found__code{color:var(--c-accent-ink);font-size:var(--fs-sm);font-weight:800;letter-spacing:.12em;margin-bottom:var(--s-2)}.not-found__actions{display:flex;flex-wrap:wrap;gap:var(--s-3);margin-top:var(--s-5)}
