.sd-guide-page{--guide-bg: #f7f8fb;--guide-surface: rgba(255, 255, 255, .94);--guide-surface-solid: #ffffff;--guide-surface-soft: #f2f3f7;--guide-ink: #111217;--guide-muted: #656873;--guide-faint: #9295a0;--guide-border: #e4e6ec;--guide-blue: #3b6df6;--guide-purple: #7839ee;--guide-gradient: linear-gradient(105deg, #2f6bf2 0%, #7a3fed 100%);position:relative;min-height:100vh;overflow-x:clip;color:var(--guide-ink);background:linear-gradient(rgb(17 24 39 / 3.2%) 1px,transparent 1px),linear-gradient(90deg,rgb(17 24 39 / 3.2%) 1px,transparent 1px),var(--guide-bg);background-size:32px 32px}html[data-theme=dark] .sd-guide-page{--guide-bg: #060609;--guide-surface: rgba(18, 18, 23, .94);--guide-surface-solid: #121217;--guide-surface-soft: #1a1a20;--guide-ink: #f7f7fa;--guide-muted: #a2a3ad;--guide-faint: #777984;--guide-border: #282832;background:linear-gradient(rgb(255 255 255 / 3%) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / 3%) 1px,transparent 1px),var(--guide-bg);background-size:32px 32px}.sd-guide-atmosphere{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;pointer-events:none}.sd-guide-atmosphere:before,.sd-guide-atmosphere:after{position:absolute;width:620px;height:620px;border-radius:999px;content:"";filter:blur(12px);opacity:.13}.sd-guide-atmosphere:before{top:-240px;right:-160px;background:#633bf0}.sd-guide-atmosphere:after{top:640px;left:-330px;background:#3478f6}html[data-theme=dark] .sd-guide-atmosphere:before,html[data-theme=dark] .sd-guide-atmosphere:after{opacity:.22}.sd-guide-shell{position:relative;z-index:1;width:min(100%,1500px);padding:20px 32px 48px;margin:0 auto}.sd-guide-topbar{position:relative;z-index:30;display:flex;height:80px;align-items:center;justify-content:space-between;gap:18px;padding:0 8px;background:transparent}.sd-guide-brand{display:inline-flex;min-width:198px;align-items:baseline;color:var(--guide-ink);font-family:Grifter,Rethink Sans,sans-serif;font-size:24px;font-weight:700;line-height:1;text-decoration:none}.sd-guide-brand-design{color:transparent;background:var(--guide-gradient);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sd-guide-landing-nav{position:absolute;top:50%;left:50%;z-index:1;display:flex;min-width:0;align-items:center;justify-content:center;gap:2px;padding:4px;border:1px solid color-mix(in srgb,var(--guide-ink) 9%,transparent);border-radius:999px;background:color-mix(in srgb,var(--guide-surface-solid) 58%,transparent);box-shadow:0 18px 48px #00000017;transform:translate(-50%,-50%)}.sd-guide-landing-nav>a{padding:9px 16px;border-radius:999px;color:var(--guide-muted);font-size:14px;font-weight:600;text-decoration:none;transition:color .18s ease,background .18s ease}.sd-guide-landing-nav>a:hover,.sd-guide-landing-nav>a:focus-visible{color:var(--guide-ink);background:color-mix(in srgb,var(--guide-ink) 7%,transparent)}.sd-guide-header-actions{display:flex;width:92px;flex-shrink:0;align-items:center;justify-content:flex-end;gap:8px}.sd-guide-more-menu{position:relative}.sd-guide-more-menu summary{display:grid;width:36px;height:36px;place-items:center;border-radius:999px;color:var(--guide-muted);cursor:pointer;list-style:none;transition:color .18s ease,background .18s ease}.sd-guide-more-menu summary::-webkit-details-marker{display:none}.sd-guide-more-menu summary:hover,.sd-guide-more-menu summary:focus-visible,.sd-guide-more-menu[open] summary{color:var(--guide-ink);background:color-mix(in srgb,var(--guide-ink) 7%,transparent)}.sd-guide-more-menu summary svg{width:17px;height:17px;fill:currentColor}.sd-guide-menu-panel{position:absolute;top:calc(100% + 10px);right:0;display:grid;width:220px;gap:2px;padding:7px;border:1px solid var(--guide-border);border-radius:15px;background:color-mix(in srgb,var(--guide-surface-solid) 97%,transparent);box-shadow:0 24px 70px #0000002e;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.sd-guide-menu-panel a{padding:10px 12px;border-radius:10px;color:var(--guide-muted);font-size:13px;font-weight:600;text-decoration:none}.sd-guide-menu-panel a:hover,.sd-guide-menu-panel a:focus-visible{color:var(--guide-ink);background:var(--guide-surface-soft)}.sd-guide-mobile-menu{display:none}.sd-guide-theme-toggle{display:grid;width:36px;height:36px;place-items:center;padding:0;border:0;border-radius:999px;color:var(--guide-muted);background:transparent;cursor:pointer}.sd-guide-theme-toggle:hover,.sd-guide-theme-toggle:focus-visible{color:var(--guide-ink);background:var(--guide-surface-soft)}.sd-guide-theme-icon{display:none;width:16px;height:16px}html[data-theme=dark] .sd-guide-theme-icon--sun,html[data-theme=light] .sd-guide-theme-icon--moon{display:block}.sd-guide-hero{position:relative;display:grid;min-height:650px;grid-template-columns:minmax(0,1.03fr) minmax(430px,.97fr);overflow:hidden;border:1px solid var(--guide-border);border-radius:42px;background:var(--guide-surface);box-shadow:0 28px 90px #1a1f311a}html[data-theme=dark] .sd-guide-hero{box-shadow:0 30px 100px #0000005c}.sd-guide-hero-copy{display:flex;min-width:0;flex-direction:column;justify-content:center;padding:clamp(46px,6vw,92px)}.sd-guide-hero.sd-guide-hero--copy-only{min-height:0;grid-template-columns:minmax(0,1fr)}.sd-guide-hero.sd-guide-hero--copy-only .sd-guide-hero-copy{width:100%;min-height:0;padding-block:clamp(40px,4vw,48px)}.sd-guide-hero--copy-only .sd-guide-hero-actions{margin-top:20px}.sd-guide-hero--copy-only .sd-guide-meta{margin-top:18px}.sd-guide-hero--copy-only .sd-guide-hero-copy>.sd-guide-byline{margin-top:8px}.sd-guide-hero h1{max-width:760px;margin:0 0 22px;color:var(--guide-ink);font-family:Grifter,Rethink Sans,sans-serif;font-size:clamp(48px,5vw,72px);font-weight:700;line-height:1.02;letter-spacing:-.012em}.sd-guide-hero h1 em{display:inline-block;padding-inline-start:.04em;margin-inline-end:-.04em;color:transparent;background:var(--guide-gradient);background-clip:text;font-style:normal;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sd-guide-hero-copy>p{max-width:640px;margin:0;color:var(--guide-muted);font-size:clamp(18px,1.7vw,22px);line-height:1.5}.sd-guide-hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}.sd-guide-button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;gap:10px;padding:0 18px;border:1px solid transparent;border-radius:999px;font-size:14px;font-weight:600;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.sd-guide-arrow-icon,.sd-guide-button svg,.sd-guide-text-link svg,.sd-guide-toc-cta svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}svg.sd-guide-arrow-icon{inline-size:17px!important;block-size:17px!important;min-inline-size:17px;max-inline-size:17px;flex:0 0 17px}.sd-guide-button--primary{color:#fff;background:var(--guide-gradient);box-shadow:0 14px 28px #4b4aef38}.sd-guide-button--secondary{border-color:var(--guide-border);color:var(--guide-ink);background:var(--guide-surface-solid)}.sd-guide-button:hover,.sd-guide-button:focus-visible{transform:translateY(-2px)}.sd-guide-button--secondary:hover,.sd-guide-button--secondary:focus-visible{border-color:color-mix(in srgb,var(--guide-blue) 44%,var(--guide-border))}.sd-guide-meta{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:30px;color:var(--guide-faint);font-size:12px}.sd-guide-meta span{display:inline-flex;align-items:center;gap:8px}.sd-guide-meta span:before{width:4px;height:4px;border-radius:50%;background:var(--guide-blue);content:""}.sd-guide-hero-copy>.sd-guide-byline{max-width:610px;margin:16px 0 0;color:var(--guide-faint);font-size:12px;line-height:1.55}.sd-guide-byline a{color:var(--guide-muted);text-decoration-color:color-mix(in srgb,var(--guide-muted) 42%,transparent);text-underline-offset:3px}.sd-guide-hero-visual{position:relative;min-height:650px;overflow:hidden;margin:18px 18px 18px 0;border-radius:32px;background:radial-gradient(circle at 23% 16%,rgb(85 116 255 / 36%),transparent 33%),radial-gradient(circle at 82% 78%,rgb(166 74 222 / 26%),transparent 34%),#101117}.sd-guide-hero-visual:before{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgb(255 255 255 / 5%) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / 5%) 1px,transparent 1px);background-size:30px 30px;content:""}.sd-guide-screen-wall{position:absolute;z-index:1;top:0;right:0;bottom:0;left:0;display:grid;width:min(calc(100% - 48px),560px);height:fit-content;grid-template-columns:repeat(4,minmax(0,1fr));align-content:center;gap:12px;margin:auto}.sd-guide-hero-screen{display:block;width:100%;aspect-ratio:9 / 19.5;overflow:hidden;border:1px solid rgb(255 255 255 / 16%);border-radius:6px;background:#fff;box-shadow:0 18px 42px #00000047;transition:transform .22s ease,box-shadow .22s ease}.sd-guide-hero-screen:nth-child(5){grid-column:2}.sd-guide-hero-screen:hover,.sd-guide-hero-screen:focus-visible{z-index:2;box-shadow:0 30px 70px #0000006b;transform:translateY(-5px) scale(1.025)}.sd-guide-hero-screen img{display:block;width:100%;height:100%;object-fit:contain}.sd-guide-reading-layout{display:grid;max-width:1240px;grid-template-columns:minmax(168px,1fr) minmax(0,880px) minmax(168px,1fr);align-items:start;margin:32px auto 0}.sd-guide-toc{position:sticky;top:100px;grid-column:1;display:flex;max-height:calc(100vh - 120px);flex-direction:column;gap:4px;overflow-y:auto;margin-right:16px;padding:18px;border:1px solid var(--guide-border);border-radius:22px;background:var(--guide-surface);box-shadow:0 16px 48px #1a1f310f;scrollbar-width:none}.sd-guide-toc::-webkit-scrollbar{display:none}.sd-guide-toc>p{margin:0 0 8px;color:var(--guide-faint);font-size:10px;font-weight:700;letter-spacing:.11em;text-transform:uppercase}.sd-guide-toc>a{padding:7px 8px;border-radius:9px;color:var(--guide-muted);font-size:12px;line-height:1.35;text-decoration:none}.sd-guide-toc>a:hover,.sd-guide-toc>a:focus-visible{color:var(--guide-ink);background:var(--guide-surface-soft)}.sd-guide-toc-cta{display:flex;flex-direction:column;gap:8px;margin-top:14px;padding:16px;border-radius:16px;color:#fff;background:var(--guide-gradient)}.sd-guide-toc-cta>span{color:#ffffffad;font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.sd-guide-toc-cta strong{font-size:13px;line-height:1.35}.sd-guide-toc-cta a{display:inline-flex;align-items:center;gap:6px;color:#fff;font-size:11px;font-weight:600;text-decoration:none}.sd-guide-article{min-width:0;grid-column:2}.sd-guide-section{scroll-margin-top:102px;padding:clamp(32px,5vw,58px);border:1px solid var(--guide-border);border-radius:32px;background:var(--guide-surface);box-shadow:0 18px 60px #1a1f310f}.sd-guide-section+.sd-guide-section{margin-top:24px}html[data-theme=dark] .sd-guide-section,html[data-theme=dark] .sd-guide-toc{box-shadow:0 22px 70px #00000038}.sd-guide-section-label{margin:0 0 14px;color:var(--guide-blue);font-size:13px;font-weight:600;letter-spacing:0}.sd-guide-section h2{max-width:760px;margin:0;color:var(--guide-ink);font-family:Grifter,Rethink Sans,sans-serif;font-size:clamp(34px,4.4vw,56px);line-height:1.06;letter-spacing:.006em}.sd-guide-article-opener h1{max-width:780px;margin:0;color:var(--guide-ink);font-family:Grifter,Rethink Sans,sans-serif;font-size:clamp(42px,4.7vw,58px);font-weight:700;line-height:1.04;letter-spacing:.006em}.sd-guide-article-opener h1 em{display:inline-block;padding:.08em .1em .08em .18em;margin:-.08em -.1em -.08em -.12em;overflow:visible;color:transparent;background:var(--guide-gradient);background-clip:text;font-style:italic;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sd-guide-section .sd-guide-lead{max-width:760px;margin:22px 0 0;color:var(--guide-ink);font-size:clamp(19px,2vw,23px);line-height:1.5}.sd-guide-section>p:not(.sd-guide-section-label):not(.sd-guide-lead):not(.sd-guide-primary-sources):not(.sd-guide-process-note){max-width:760px;margin:18px 0 0;color:var(--guide-muted);font-size:17px;line-height:1.75}.sd-guide-layer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:36px}.sd-guide-layer-grid>div{padding:22px;border:1px solid var(--guide-border);border-radius:20px;background:var(--guide-surface-soft)}.sd-guide-layer-grid span,.sd-guide-principle>span,.sd-guide-process>li>span,.sd-guide-mistake-grid>div>span{color:var(--guide-blue);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;font-weight:700}.sd-guide-layer-grid h3{margin:20px 0 6px;color:var(--guide-ink);font-size:17px}.sd-guide-layer-grid p{margin:0;color:var(--guide-muted);font-size:14px;line-height:1.55}.sd-guide-callout{margin-top:24px;padding:24px;border:1px solid color-mix(in srgb,var(--guide-blue) 28%,var(--guide-border));border-radius:20px;background:color-mix(in srgb,var(--guide-blue) 7%,var(--guide-surface-solid))}.sd-guide-callout span{color:var(--guide-blue);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.sd-guide-callout p{margin:8px 0 0;color:var(--guide-ink);font-size:17px;line-height:1.6}.sd-guide-principles{margin-top:38px;border-top:1px solid var(--guide-border)}.sd-guide-principle{display:grid;grid-template-columns:40px minmax(250px,1fr) minmax(280px,.9fr);align-items:center;gap:22px;padding:26px 0;border-bottom:1px solid var(--guide-border)}.sd-guide-principle h3{margin:0;color:var(--guide-ink);font-size:21px;letter-spacing:-.008em}.sd-guide-principle-evidence{display:grid;min-width:0;grid-template-columns:88px minmax(0,1fr);align-items:center;gap:16px;padding:11px;border:1px solid var(--guide-border);border-radius:16px;color:inherit;background:var(--guide-surface-soft);text-decoration:none;transition:border-color .18s ease,transform .18s ease}.sd-guide-principle-evidence:hover,.sd-guide-principle-evidence:focus-visible{border-color:color-mix(in srgb,var(--guide-blue) 40%,var(--guide-border));transform:translateY(-2px)}.sd-guide-principle-evidence img{display:block;width:88px;aspect-ratio:9 / 19.5;object-fit:contain;border:1px solid var(--guide-border);border-radius:5px;background:#fff}.sd-guide-principle-evidence strong{color:var(--guide-ink);font-size:14px}.sd-guide-principle-evidence p{margin-top:6px;font-size:12px;line-height:1.5}.sd-guide-anatomy-grid,.sd-guide-state-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:36px}.sd-guide-anatomy-grid>div,.sd-guide-state-grid>div{padding:22px;border:1px solid var(--guide-border);border-radius:20px;background:var(--guide-surface-soft)}.sd-guide-anatomy-grid>div>span{color:var(--guide-blue);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;font-weight:700}.sd-guide-anatomy-grid h3,.sd-guide-state-grid h3{margin:18px 0 7px;color:var(--guide-ink);font-size:18px;letter-spacing:-.006em}.sd-guide-state-grid h3{margin-top:0}.sd-guide-anatomy-grid p,.sd-guide-state-grid p{margin:0;color:var(--guide-muted);font-size:14px;line-height:1.6}.sd-guide-pattern-table{overflow-x:auto;margin-top:24px;border:1px solid var(--guide-border);border-radius:20px;background:var(--guide-surface-solid)}.sd-guide-pattern-row{display:grid;min-width:680px;grid-template-columns:145px minmax(220px,1fr) minmax(220px,1fr);border-top:1px solid var(--guide-border)}.sd-guide-pattern-row:first-child{border-top:0}.sd-guide-pattern-row>*{padding:17px 18px;color:var(--guide-muted);font-size:13px;line-height:1.5}.sd-guide-pattern-row>*+*{border-left:1px solid var(--guide-border)}.sd-guide-pattern-row strong{color:var(--guide-ink)}.sd-guide-pattern-row--header{background:var(--guide-surface-soft)}.sd-guide-pattern-row--header span{color:var(--guide-faint);font-size:11px;font-weight:700}.sd-guide-concept-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}.sd-guide-concept-gallery figure{min-width:0;overflow:hidden;margin:0;border:1px solid var(--guide-border);border-radius:18px;background:var(--guide-surface-soft)}.sd-guide-concept-gallery figure>a{position:relative;display:grid;min-height:310px;place-items:center;overflow:hidden;background:radial-gradient(circle at 25% 12%,rgb(255 255 255 / 20%),transparent 34%),var(--guide-gradient)}.sd-guide-concept-gallery figure>a:before{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgb(255 255 255 / 9%) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / 9%) 1px,transparent 1px);background-size:24px 24px;content:""}.sd-guide-concept-gallery img{position:relative;z-index:1;display:block;width:min(132px,58%);aspect-ratio:9 / 19.5;object-fit:contain;border:1px solid rgb(255 255 255 / 24%);border-radius:5px;box-shadow:0 20px 38px #10112e4d;transition:transform .2s ease}.sd-guide-concept-gallery a:hover img,.sd-guide-concept-gallery a:focus-visible img{transform:translateY(-4px)}.sd-guide-concept-gallery figcaption{padding:17px}.sd-guide-concept-gallery figcaption strong{color:var(--guide-ink);font-size:14px}.sd-guide-concept-gallery figcaption p{margin:6px 0 0;color:var(--guide-muted);font-size:12px;line-height:1.5}.sd-guide-platform-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:24px}.sd-guide-platform-grid>div{padding:26px;border:1px solid color-mix(in srgb,var(--guide-blue) 24%,var(--guide-border));border-radius:20px;background:color-mix(in srgb,var(--guide-blue) 6%,var(--guide-surface-solid))}.sd-guide-platform-grid span,.sd-guide-testing-grid>div>span{color:var(--guide-blue);font-size:12px;font-weight:700}.sd-guide-platform-grid h3,.sd-guide-testing-grid h3{margin:11px 0 8px;color:var(--guide-ink);font-size:20px;line-height:1.25;letter-spacing:-.008em}.sd-guide-platform-grid p{margin:0;color:var(--guide-muted);font-size:14px;line-height:1.65}.sd-guide-section>.sd-guide-primary-sources{margin:22px 0 0;padding-top:18px;border-top:1px solid var(--guide-border);color:var(--guide-faint);font-size:13px;line-height:1.6}.sd-guide-primary-sources a{color:var(--guide-muted);text-decoration-color:color-mix(in srgb,var(--guide-muted) 42%,transparent);text-underline-offset:3px}.sd-guide-testing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:36px}.sd-guide-testing-grid>div{padding:24px;border:1px solid var(--guide-border);border-radius:20px;background:var(--guide-surface-soft)}.sd-guide-testing-grid ul{display:grid;gap:10px;padding-left:18px;margin:16px 0 0;color:var(--guide-muted)}.sd-guide-testing-grid li{padding-left:3px;font-size:13px;line-height:1.5}.sd-guide-principle p{max-width:690px;margin:8px 0 0;color:var(--guide-muted);font-size:15px;line-height:1.65}.sd-guide-evidence-note{display:grid;grid-template-columns:170px minmax(0,1fr);gap:20px;margin-top:30px;padding:18px 20px;border-left:3px solid var(--guide-blue);border-radius:0 14px 14px 0;background:var(--guide-surface-soft)}.sd-guide-evidence-note strong{color:var(--guide-ink);font-size:13px}.sd-guide-evidence-note p{margin:0;color:var(--guide-muted);font-size:13px;line-height:1.55}.sd-guide-example-list{display:grid;gap:14px;margin-top:34px}.sd-guide-example{display:grid;min-width:0;grid-template-columns:minmax(210px,.78fr) minmax(0,1.22fr);overflow:hidden;margin:0;border:1px solid var(--guide-border);border-radius:24px;background:var(--guide-surface-soft)}.sd-guide-example-media{position:relative;display:grid;min-height:420px;place-items:center;overflow:hidden;background:radial-gradient(circle at 30% 15%,rgb(255 255 255 / 22%),transparent 36%),var(--guide-gradient)}.sd-guide-example-media:before{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgb(255 255 255 / 11%) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / 11%) 1px,transparent 1px);background-size:24px 24px;content:""}.sd-guide-example-media>span{position:absolute;top:15px;left:16px;z-index:2;color:#ffffffa3;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;font-weight:700}.sd-guide-example-media img{position:relative;z-index:1;display:block;width:170px;max-width:68%;aspect-ratio:9 / 19.5;object-fit:cover;border:6px solid #111217;border-radius:28px;box-shadow:0 26px 48px #1311415c;transition:transform .25s ease}.sd-guide-example-media:hover img,.sd-guide-example-media:focus-visible img{transform:translateY(-5px) rotate(-1deg)}.sd-guide-example figcaption{display:flex;min-width:0;flex-direction:column;justify-content:center;padding:clamp(26px,4vw,44px)}.sd-guide-example-heading{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.sd-guide-example-heading span{padding:6px 8px;border-radius:999px;color:var(--guide-blue);background:color-mix(in srgb,var(--guide-blue) 9%,transparent);font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.sd-guide-example-heading>a{color:var(--guide-muted);font-size:12px;font-weight:600;text-underline-offset:3px}.sd-guide-example h3{margin:18px 0 10px;color:var(--guide-ink);font-size:clamp(24px,3vw,34px);line-height:1.08;letter-spacing:-.012em}.sd-guide-example figcaption>p{margin:0;color:var(--guide-muted);font-size:15px;line-height:1.65}.sd-guide-text-link{display:inline-flex;width:fit-content;align-items:center;gap:7px;margin-top:20px;color:var(--guide-blue);font-size:13px;font-weight:600;text-decoration:none}.sd-guide-text-link:hover,.sd-guide-text-link:focus-visible{text-decoration:underline;text-underline-offset:4px}.sd-guide-data-story{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;overflow:hidden;margin-top:24px;border:1px solid var(--guide-border);border-radius:22px;background:var(--guide-border)}.sd-guide-data-story>div,.sd-guide-data-story>p{margin:0;background:var(--guide-surface-solid)}.sd-guide-data-story>div{display:flex;flex-direction:column;gap:4px;padding:20px}.sd-guide-data-story>div span{color:var(--guide-blue);font-family:Grifter,Rethink Sans,sans-serif;font-size:28px}.sd-guide-data-story>div strong{color:var(--guide-muted);font-size:11px;font-weight:600}.sd-guide-data-story>p{grid-column:1 / -1;padding:20px;color:var(--guide-muted);font-size:13px;line-height:1.6}.sd-guide-pro-nudge{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;margin-top:24px;padding:26px;border:1px solid color-mix(in srgb,var(--guide-blue) 24%,var(--guide-border));border-radius:20px;background:radial-gradient(circle at 92% 18%,color-mix(in srgb,var(--guide-purple) 14%,transparent),transparent 34%),color-mix(in srgb,var(--guide-blue) 5%,var(--guide-surface-solid))}.sd-guide-pro-nudge--create{background:radial-gradient(circle at 10% 8%,color-mix(in srgb,var(--guide-blue) 12%,transparent),transparent 36%),color-mix(in srgb,var(--guide-purple) 5%,var(--guide-surface-solid))}.sd-guide-pro-nudge h3{margin:0;color:var(--guide-ink);font-size:22px;line-height:1.15;letter-spacing:-.004em}.sd-guide-pro-nudge p{max-width:610px;margin:8px 0 0;color:var(--guide-muted);font-size:14px;line-height:1.6}.sd-guide-pro-nudge-actions{display:flex;flex-direction:column;gap:8px}.sd-guide-pro-nudge-actions .sd-guide-button{white-space:nowrap}.sd-guide-process{display:grid;gap:10px;padding:0;margin:36px 0 0;list-style:none}.sd-guide-section>.sd-guide-process-note{max-width:780px;margin:22px 0 0;padding:16px 18px;border-left:3px solid var(--guide-blue);color:var(--guide-muted);background:var(--guide-surface-soft);font-size:14px;line-height:1.6}.sd-guide-process li{display:grid;grid-template-columns:38px minmax(260px,1fr) minmax(300px,.9fr);align-items:center;gap:18px;padding:23px;border:1px solid var(--guide-border);border-radius:19px;background:var(--guide-surface-soft)}.sd-guide-process h3{margin:0;color:var(--guide-ink);font-size:20px;letter-spacing:-.008em}.sd-guide-process p{margin:7px 0 0;color:var(--guide-muted);font-size:14px;line-height:1.62}.sd-guide-process-evidence{display:grid;min-width:0;grid-template-columns:92px minmax(0,1fr);align-items:stretch;overflow:hidden;border:1px solid var(--guide-border);border-radius:15px;color:inherit;background:var(--guide-surface-solid);text-decoration:none;transition:border-color .18s ease,transform .18s ease}.sd-guide-process-evidence:hover,.sd-guide-process-evidence:focus-visible{border-color:color-mix(in srgb,var(--guide-blue) 40%,var(--guide-border));transform:translateY(-2px)}.sd-guide-process-screens{position:relative;display:grid;min-height:198px;place-items:center;overflow:hidden;background:radial-gradient(circle at 22% 12%,rgb(255 255 255 / 25%),transparent 36%),var(--guide-gradient)}.sd-guide-process-screens:before{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgb(255 255 255 / 10%) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / 10%) 1px,transparent 1px);background-size:20px 20px;content:""}.sd-guide-process-screens img{position:relative;z-index:1;display:block;width:76px;aspect-ratio:9 / 19.5;object-fit:contain;border:1px solid rgb(255 255 255 / 24%);border-radius:4px;background:#fff;box-shadow:0 15px 28px #19154847}.sd-guide-process-caption{display:flex;min-width:0;flex-direction:column;justify-content:center;padding:15px}.sd-guide-process-caption strong{color:var(--guide-ink);font-size:13px}.sd-guide-process-caption p{margin-top:6px;font-size:12px;line-height:1.5}.sd-guide-process-evidence--sequence{grid-template-columns:132px minmax(0,1fr)}.sd-guide-process-evidence--sequence .sd-guide-process-screens{display:block}.sd-guide-process-evidence--sequence .sd-guide-process-screens img{position:absolute;top:19px;left:9px;width:69px;transform:rotate(-4deg)}.sd-guide-process-evidence--sequence .sd-guide-process-screens img:nth-child(2){z-index:2;left:32px;transform:rotate(0)}.sd-guide-process-evidence--sequence .sd-guide-process-screens img:nth-child(3){z-index:3;left:55px;transform:rotate(4deg)}.sd-guide-check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:34px}.sd-guide-check-grid>div{padding:24px;border:1px solid var(--guide-border);border-radius:20px;background:var(--guide-surface-soft)}.sd-guide-check-grid h3{margin:0 0 17px;color:var(--guide-ink);font-size:18px}.sd-guide-check-grid ul{display:grid;gap:12px;padding:0;margin:0;list-style:none}.sd-guide-check-grid li{display:grid;grid-template-columns:18px minmax(0,1fr);gap:9px;color:var(--guide-muted);font-size:13px;line-height:1.45}.sd-guide-check-grid svg{width:17px;height:17px;fill:none;stroke:var(--guide-blue);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.sd-guide-mistake-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:34px}.sd-guide-mistake-grid>div{padding:22px;border:1px solid var(--guide-border);border-radius:18px;background:var(--guide-surface-soft)}.sd-guide-mistake-grid h3{margin:14px 0 6px;color:var(--guide-ink);font-size:17px}.sd-guide-mistake-grid p{margin:0;color:var(--guide-muted);font-size:13px;line-height:1.55}.sd-guide-final-cta{position:relative;overflow:hidden;margin-top:24px;padding:clamp(44px,6vw,76px);border:1px solid var(--guide-border);border-radius:32px;background:radial-gradient(circle at 84% 14%,color-mix(in srgb,var(--guide-violet) 18%,transparent),transparent 34%),var(--guide-surface);box-shadow:0 24px 70px #1f224f1f}.sd-guide-final-cta:before{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgb(95 98 130 / 6%) 1px,transparent 1px),linear-gradient(90deg,rgb(95 98 130 / 6%) 1px,transparent 1px);background-size:28px 28px;-webkit-mask-image:linear-gradient(120deg,#000,transparent 74%);mask-image:linear-gradient(120deg,#000,transparent 74%);content:"";pointer-events:none}.sd-guide-final-cta>div{position:relative;z-index:1;max-width:900px}.sd-guide-final-cta h2{max-width:100%;margin:0;color:var(--guide-ink);font-family:Grifter,Rethink Sans,sans-serif;font-size:clamp(38px,4.8vw,58px);line-height:1.04;letter-spacing:.006em;text-wrap:balance}.sd-guide-final-cta h2>span,.sd-guide-final-cta h2>em{display:block}.sd-guide-final-cta h2 em{color:var(--guide-blue);font-style:normal}.sd-guide-final-cta p{max-width:680px;margin:22px 0 0;color:var(--guide-muted);font-size:17px;line-height:1.65}.sd-guide-research-section{position:relative;display:grid;grid-template-columns:1fr;align-items:center;gap:34px;overflow:hidden;border-color:transparent;color:#fff;background:radial-gradient(circle at 85% 15%,rgb(255 255 255 / 17%),transparent 30%),linear-gradient(135deg,#1e40cf,#6d36e8 60%,#922fce)}.sd-guide-research-section:before{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgb(255 255 255 / 8%) 1px,transparent 1px),linear-gradient(90deg,rgb(255 255 255 / 8%) 1px,transparent 1px);background-size:28px 28px;-webkit-mask-image:linear-gradient(90deg,#000,transparent);mask-image:linear-gradient(90deg,#000,transparent);content:"";pointer-events:none}.sd-guide-research-section>*{position:relative;z-index:1}.sd-guide-research-section .sd-guide-section-label{color:#ffffffad}.sd-guide-research-section h2{color:#fff}.sd-guide-research-section h2 em{color:#d8d5ff}.sd-guide-research-section>div>p:not(.sd-guide-section-label){max-width:650px;margin:18px 0 0;color:#ffffffbd;font-size:16px;line-height:1.65}.sd-guide-research-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.sd-guide-research-section .sd-guide-button--primary{color:#17171c;background:#fff;box-shadow:0 14px 30px #0f0b3740}.sd-guide-research-section .sd-guide-button--secondary{border-color:#ffffff42;color:#fff;background:#ffffff14}.sd-guide-faq-list{margin-top:34px;border-top:1px solid var(--guide-border)}.sd-guide-faq-list details{border-bottom:1px solid var(--guide-border)}.sd-guide-faq-list summary{position:relative;padding:22px 46px 22px 0;color:var(--guide-ink);font-size:18px;font-weight:600;list-style:none;cursor:pointer}.sd-guide-faq-list summary::-webkit-details-marker{display:none}.sd-guide-faq-list summary:after{position:absolute;top:50%;right:3px;color:var(--guide-blue);content:"+";font-size:24px;font-weight:400;transform:translateY(-50%)}.sd-guide-faq-list details[open] summary:after{content:"−"}.sd-guide-faq-list details p{max-width:720px;padding:0 42px 23px 0;margin:0;color:var(--guide-muted);font-size:15px;line-height:1.65}.sd-guide-footer{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px;max-width:1240px;padding:42px 4px 10px;margin:28px auto 0;border-top:1px solid var(--guide-border)}.sd-guide-footer p{margin:0;color:var(--guide-faint);font-size:12px}.sd-guide-footer>div{display:flex;gap:16px}.sd-guide-footer>div a{color:var(--guide-muted);font-size:12px;text-decoration:none}.sd-guide-footer>div a:hover,.sd-guide-footer>div a:focus-visible{color:var(--guide-ink)}@media(max-width:1120px){.sd-guide-hero{min-height:590px;grid-template-columns:minmax(0,1fr) 420px}.sd-guide-hero-copy{padding:54px}.sd-guide-hero-visual{min-height:552px}}@media(max-width:1279px){.sd-guide-reading-layout{display:block;max-width:880px}.sd-guide-toc{position:static;display:grid;max-height:none;grid-template-columns:repeat(2,minmax(0,1fr));overflow-y:visible;margin-right:0;margin-bottom:18px}.sd-guide-toc>p,.sd-guide-toc-cta{grid-column:1 / -1}}@media(max-width:900px){.sd-guide-shell{padding:16px 20px 42px}.sd-guide-landing-nav{display:none}.sd-guide-mobile-menu{display:block}.sd-guide-header-actions{width:auto}.sd-guide-hero{grid-template-columns:1fr}.sd-guide-hero-copy{padding:58px}.sd-guide-hero-visual{min-height:600px;margin:0 18px 18px}.sd-guide-screen-wall{top:0;right:0;bottom:0;left:0;width:min(calc(100% - 48px),560px);grid-template-columns:repeat(4,minmax(0,1fr));align-content:center;gap:12px;padding:0;transform:none}.sd-guide-reading-layout{display:block;margin-top:24px}.sd-guide-toc{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:18px}.sd-guide-toc>p,.sd-guide-toc-cta{grid-column:1 / -1}}@media(max-width:680px){.sd-guide-shell{padding:10px 10px 32px}.sd-guide-topbar{height:58px;padding:0 10px}.sd-guide-brand{min-width:0;font-size:20px}.sd-guide-hero{border-radius:28px}.sd-guide-hero-copy{padding:36px 24px 34px}.sd-guide-hero.sd-guide-hero--copy-only .sd-guide-hero-copy{min-height:0;padding:32px 24px 30px}.sd-guide-hero h1{font-size:clamp(44px,12vw,52px);line-height:1.03;letter-spacing:-.008em}.sd-guide-article-opener h1{font-size:clamp(40px,11vw,48px)}.sd-guide-hero-copy>p{font-size:17px}.sd-guide-hero-actions{align-items:stretch;flex-direction:column}.sd-guide-button{width:100%}.sd-guide-final-cta{padding:34px 26px;border-radius:24px}.sd-guide-final-cta h2{font-size:clamp(36px,10.5vw,44px)}.sd-guide-section.sd-guide-final-cta{padding:34px 26px}.sd-guide-section.sd-guide-final-cta h2{font-size:clamp(36px,10.5vw,44px)}.sd-guide-meta{align-items:flex-start;flex-direction:column}.sd-guide-hero-visual{min-height:470px;margin:0 10px 10px;border-radius:22px}.sd-guide-screen-wall{top:0;right:0;bottom:0;left:0;width:min(calc(100% - 32px),316px);grid-template-columns:repeat(3,92px);align-content:center;justify-content:center;gap:8px;padding:0;transform:none}.sd-guide-hero-screen:nth-child(5){grid-column:auto}.sd-guide-toc{display:none}.sd-guide-section{padding:30px 22px;border-radius:24px}.sd-guide-section h2{font-size:36px}.sd-guide-section .sd-guide-lead{font-size:18px}.sd-guide-section>p:not(.sd-guide-section-label):not(.sd-guide-lead){font-size:15px}.sd-guide-layer-grid,.sd-guide-anatomy-grid,.sd-guide-state-grid,.sd-guide-concept-gallery,.sd-guide-platform-grid,.sd-guide-testing-grid,.sd-guide-check-grid,.sd-guide-mistake-grid{grid-template-columns:1fr}.sd-guide-evidence-note{grid-template-columns:1fr;gap:7px}.sd-guide-example{grid-template-columns:1fr}.sd-guide-example-media{min-height:390px}.sd-guide-example figcaption{padding:26px 22px 30px}.sd-guide-data-story{grid-template-columns:1fr}.sd-guide-data-story>p{grid-column:auto}.sd-guide-principle,.sd-guide-process li{grid-template-columns:36px minmax(0,1fr)}.sd-guide-process li{grid-template-columns:1fr}.sd-guide-principle-evidence{grid-column:2;grid-template-columns:72px minmax(0,1fr)}.sd-guide-principle-evidence img{width:72px}.sd-guide-process-evidence{grid-column:1;grid-template-columns:76px minmax(0,1fr)}.sd-guide-process-evidence--sequence{grid-template-columns:104px minmax(0,1fr)}.sd-guide-process-screens{min-height:174px}.sd-guide-process-evidence--sequence .sd-guide-process-screens img{top:21px;left:5px;width:56px}.sd-guide-process-evidence--sequence .sd-guide-process-screens img:nth-child(2){left:23px}.sd-guide-process-evidence--sequence .sd-guide-process-screens img:nth-child(3){left:41px}.sd-guide-research-section{grid-template-columns:1fr}.sd-guide-research-actions{flex-direction:column}.sd-guide-pro-nudge{grid-template-columns:1fr;gap:18px;padding:22px}.sd-guide-pro-nudge-actions{align-items:stretch}.sd-guide-footer{grid-template-columns:1fr;gap:12px;padding-right:12px;padding-left:12px}}.sd-guide-reading-progress{position:fixed;inset:0 0 auto;z-index:100;height:4px;overflow:hidden;background:#544e781a;pointer-events:none}.sd-guide-reading-progress span{display:block;width:100%;height:100%;background:linear-gradient(90deg,#3676f6,#7048ef 70%,#a854f5);box-shadow:0 0 16px #6848ef85;transform-origin:left center;transition:transform 80ms linear}.sd-guide-floating-ask{position:fixed;right:22px;bottom:max(22px,env(safe-area-inset-bottom));z-index:90;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(12px) scale(.96);transform-origin:bottom right;transition:opacity .18s ease,transform .24s cubic-bezier(.22,1,.36,1),visibility 0s linear .24s}.sd-guide-floating-ask.is-visible{visibility:visible;opacity:1;pointer-events:auto;transform:translateY(0) scale(1);transition-delay:0s}.sd-guide-floating-ask>a{display:grid;min-width:222px;grid-template-columns:38px minmax(0,1fr) 18px;gap:11px;align-items:center;padding:10px 12px 10px 10px;border:1px solid rgb(50 44 92 / 12%);border-radius:18px;color:#171621;text-decoration:none;background:#ffffffeb;box-shadow:0 18px 52px #29225a33,inset 0 1px #ffffffe0;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.sd-guide-floating-ask>a:hover{border-color:#624ce547;box-shadow:0 22px 62px #29225a47,inset 0 1px #ffffffeb;transform:translateY(-3px)}.sd-guide-floating-ask>a:focus-visible{outline:3px solid rgb(98 76 229 / 28%);outline-offset:4px}.sd-guide-floating-ask-mark{display:grid;width:38px;height:38px;place-items:center;border-radius:12px;color:#fff;background:linear-gradient(135deg,#3479f6,#7146ed 62%,#9b4ee8);box-shadow:0 9px 22px #5b45e557}.sd-guide-floating-ask-mark svg{width:17px;height:17px;fill:none;stroke:currentcolor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7}.sd-guide-floating-ask-copy{display:grid;min-width:0;gap:1px}.sd-guide-floating-ask-copy small{color:#777286;font-size:10px;font-weight:650;letter-spacing:.025em}.sd-guide-floating-ask-copy strong{overflow:hidden;color:inherit;font-size:14px;font-weight:760;line-height:1.25;text-overflow:ellipsis;white-space:nowrap;animation:sd-guide-ask-copy-in .26s ease both}.sd-guide-floating-ask-arrow{width:18px;height:18px;fill:none;stroke:#6256c7;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8;transition:transform .16s ease}.sd-guide-floating-ask>a:hover .sd-guide-floating-ask-arrow{transform:translate(2px)}html[data-theme=dark] .sd-guide-floating-ask>a{border-color:#ffffff1c;color:#f7f6fc;background:#14131ce5;box-shadow:0 18px 54px #0000006b,inset 0 1px #ffffff14}html[data-theme=dark] .sd-guide-floating-ask-copy small{color:#ffffff7a}@keyframes sd-guide-ask-copy-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@media(max-width:520px){.sd-guide-floating-ask{right:12px;bottom:max(12px,env(safe-area-inset-bottom))}.sd-guide-floating-ask>a{min-width:204px;grid-template-columns:36px minmax(0,1fr) 16px;gap:9px;border-radius:16px}.sd-guide-floating-ask-mark{width:36px;height:36px}}@media(prefers-reduced-motion:reduce){.sd-guide-page *,.sd-guide-page *:before,.sd-guide-page *:after{scroll-behavior:auto!important;transition-duration:.01ms!important}.sd-guide-floating-ask-copy strong{animation:none}}
