:root{color-scheme:dark;--bg:#080e1b;--surface:#101a2b;--line:#26334b;--text:#eff4fc;--muted:#b0bdd1;--cyan:#79e2df;--violet:#baabf6;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--cyan);text-underline-offset:4px}a:hover{color:#fff}button{font:inherit;cursor:pointer}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}img{max-width:100%;height:auto;display:block}p{margin:0 0 1.3em}h1,h2,h3{line-height:1.13;letter-spacing:-.035em}h1{font-size:clamp(2.65rem,6vw,5.6rem);font-weight:650;margin:.3em 0 .45em}h2{font-size:clamp(1.9rem,3.7vw,3rem);font-weight:600;margin:0 0 .65em}h3{font-size:1.35rem;margin:0 0 .6em;font-weight:600}.wrap{width:min(var(--max),calc(100% - 64px));margin:auto}.skip{position:fixed;left:16px;top:-80px;padding:12px;background:#fff;color:#000;z-index:100}.skip:focus{top:12px}.site-header{border-bottom:1px solid var(--line);background:#080e1bf5;position:relative;z-index:10}.header-inner{min-height:90px;display:flex;align-items:center;gap:35px}.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;font-size:20px;font-weight:700;letter-spacing:.16em}.brand img{width:38px;height:38px;border-radius:9px}.nav{display:flex;align-items:center;gap:27px;margin-left:auto}.nav a{font-size:14px;color:var(--muted);text-decoration:none;white-space:nowrap}.nav a:hover,.nav a[aria-current=page]{color:var(--cyan)}.nav a.nav-cta{padding:10px 16px;border:1px solid #617790;color:var(--text);border-radius:5px}.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:5px;color:white;padding:8px 15px;margin-left:auto}.eyebrow{text-transform:uppercase;letter-spacing:.17em;font-size:12px;color:var(--cyan);font-weight:650;display:flex;align-items:center;gap:12px;margin-bottom:20px}.eyebrow:before{content:'';width:24px;height:1px;background:var(--cyan)}.hero{padding:76px 0 0;background:radial-gradient(ellipse at 85% 25%,#29224666,transparent 60%)}.hero-top{display:grid;grid-template-columns:1.2fr .8fr;align-items:end;gap:90px;padding-bottom:50px}.hero h1{max-width:720px}.hero h1 span{color:var(--cyan)}.hero-copy{padding-bottom:8px}.lead{font-size:19px;line-height:1.65;color:var(--muted);max-width:720px}.buttons{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;padding:12px 21px;background:var(--cyan);color:#092023;border:1px solid var(--cyan);border-radius:5px;text-decoration:none;font-size:15px;font-weight:650;min-height:48px}.button:hover{background:#a0f2ef;color:#092023}.button.secondary{color:var(--text);background:transparent;border-color:#5b6c87}.small{font-size:14px;color:var(--muted)}.product-frame{border:1px solid #42516e;border-radius:10px;overflow:hidden;box-shadow:0 28px 85px #0005;background:#0d1625}.frame-bar{display:flex;justify-content:space-between;gap:20px;padding:12px 20px;background:#141e30;font-size:12px;color:var(--muted);letter-spacing:.06em}.frame-bar span:first-child{color:#dde7f7}.shot-link{display:block;position:relative;background:#060c17;cursor:zoom-in}.shot-link:after{content:'↗  Enlarge screenshot';position:absolute;right:15px;bottom:15px;background:#101a2bf2;color:#fff;border:1px solid #758499;padding:6px 12px;border-radius:4px;font-size:12px;opacity:0;transition:opacity .15s}.shot-link:hover:after,.shot-link:focus:after{opacity:1}.hero .shot-link img{width:100%}.proof-strip{display:flex;justify-content:space-between;gap:24px;padding:24px 0;color:var(--muted);font-size:14px;border-bottom:1px solid var(--line)}.proof-strip span:before{content:'✓';color:var(--cyan);margin-right:10px}.section{padding:90px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:40px}.section-head p{max-width:380px;color:var(--muted);margin:0}.section-head h2{max-width:620px;margin-bottom:0}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.card{border:1px solid var(--line);border-radius:8px;padding:30px;background:linear-gradient(140deg,#142036,#0d1524)}.card p{color:var(--muted);margin-bottom:18px}.card p:last-child{margin-bottom:0}.card-number{font:14px/1.2 ui-monospace,monospace;color:var(--violet);display:block;margin-bottom:40px}.card a{font-size:14px}.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;align-items:center}.split .lead{font-size:17px}.split figure{margin:0}.split ul{padding-left:20px;color:var(--muted)}figure{margin:28px 0}figcaption{font-size:14px;color:var(--muted);padding:14px 0;line-height:1.6}.callout{border-left:3px solid var(--cyan);background:#111f2d;padding:20px 24px;margin:28px 0;border-radius:0 5px 5px 0}.callout p:last-child{margin-bottom:0}.callout strong{color:var(--text)}.cta-band{padding:65px;background:linear-gradient(110deg,#182c3a,#211d3b);border:1px solid #46516f;border-radius:10px;display:flex;align-items:center;justify-content:space-between;gap:40px;margin:80px auto}.cta-band h2{margin-bottom:12px}.cta-band p{color:var(--muted);margin:0}.cta-band .button{white-space:nowrap}.site-footer{padding:50px 0 30px}.footer-top{display:flex;justify-content:space-between;gap:50px}.footer-links{display:flex;gap:26px;flex-wrap:wrap}.footer-links a{font-size:14px;color:var(--muted)}.footer-bottom{border-top:1px solid var(--line);padding-top:22px;margin-top:35px;display:flex;justify-content:space-between;gap:25px;font-size:12px;color:var(--muted)}.page-head{padding:48px 0 45px;border-bottom:1px solid var(--line);background:radial-gradient(ellipse at right,#211d3b88,transparent 65%)}.breadcrumbs{display:flex;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:35px}.breadcrumbs a{color:var(--muted)}.page-head h1{font-size:clamp(2.5rem,5vw,4.1rem);max-width:900px}.page-head .lead{margin-bottom:10px}.docs-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:65px;padding-top:48px;padding-bottom:75px}.doc-nav{font-size:14px;align-self:start;position:sticky;top:30px}.doc-nav strong{display:block;color:var(--text);font-size:12px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 15px}.doc-nav a{display:block;text-decoration:none;color:var(--muted);border-left:1px solid var(--line);padding:7px 15px}.doc-nav a:hover,.doc-nav a[aria-current=page]{border-left-color:var(--cyan);color:var(--cyan);background:#79e2df08}.doc-nav .nav-group{margin-bottom:26px}.prose{max-width:850px;min-width:0;color:#c2cede}.prose h2,.prose h3{color:var(--text)}.prose h2{font-size:2rem;margin-top:58px}.prose h2:first-child{margin-top:0}.prose h3{margin-top:30px}.prose ol{padding-left:24px}.prose li{padding-left:7px;margin:0 0 15px}.prose strong{color:var(--text)}.prose code:not(pre code){font-size:.9em;background:#1a263a;padding:2px 5px;border-radius:4px;overflow-wrap:anywhere}.code-block{position:relative;margin:22px 0}.code-block pre{background:#050b15;border:1px solid #35435a;border-radius:6px;padding:52px 22px 22px;overflow:auto;line-height:1.6;white-space:pre;font:14px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;color:#d7efeb;max-width:100%;tab-size:2}.copy{position:absolute;right:10px;top:10px;border:1px solid #61738d;border-radius:4px;background:#18253a;color:var(--text);padding:3px 12px;font-size:12px;min-height:32px}.table-wrap{overflow:auto;margin:25px 0}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;vertical-align:top;padding:15px;border:1px solid var(--line)}th{color:var(--text);background:#172237}details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-weight:600;color:var(--text);padding-right:10px}details p{margin:16px 0 0}.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:35px}.gallery figure{margin:0}.gallery h3{margin:16px 0 0}.gallery-section{padding:55px 0;border-bottom:1px solid var(--line)}.annotations{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.annotation{font-size:13px;color:var(--muted)}.annotation b{display:inline-flex;justify-content:center;align-items:center;width:22px;height:22px;border-radius:50%;background:var(--cyan);color:#092023;margin-right:5px}.lightbox{border:1px solid #53657e;padding:20px;background:#0b1322;color:var(--text);border-radius:8px;width:min(96vw,1700px);max-height:94dvh}.lightbox::backdrop{background:#030712eb}.lightbox-toolbar{display:flex;align-items:center;gap:16px;margin-bottom:16px}.lightbox-toolbar h2{font-size:18px;flex:1;margin:0}.lightbox-toolbar button{background:#22314a;color:white;border:1px solid #8092af;border-radius:4px;padding:7px 14px;min-height:44px;font-size:14px}.lightbox-image{overflow:auto;max-height:calc(94dvh - 110px)}.lightbox-image img{margin:auto;width:auto;max-width:100%}.lightbox-image.zoomed img{max-width:none}.status-message{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);z-index:100;background:#e3ffff;color:#082126;padding:10px 20px;border-radius:4px;box-shadow:0 5px 30px #0006}.status-message:empty{display:none}.feature-row{display:grid;grid-template-columns:70px 1fr 1fr;gap:32px;border-bottom:1px solid var(--line);padding:40px 0}.feature-row p{color:var(--muted)}.feature-row .card-number{margin:5px 0}.feature-row h3{font-size:1.7rem}.inline-links{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px}.guide-card{text-decoration:none;color:var(--text);display:block;height:100%}.guide-card:hover{border-color:var(--cyan)}.guide-card p{font-size:15px}.guide-card span{color:var(--cyan);font-size:14px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(min-width:1500px){.hero-top{padding-top:20px}}@media(max-width:1050px){.nav{gap:16px}.header-inner{gap:15px}.brand{font-size:17px}.hero-top{gap:40px}.docs-layout{gap:35px;grid-template-columns:190px minmax(0,1fr)}.split{gap:35px}.card{padding:24px}}@media(max-width:800px){.wrap{width:calc(100% - 40px)}.header-inner{min-height:76px;flex-wrap:wrap}.js .menu-toggle{display:block}.nav{width:100%;padding-bottom:22px;flex-wrap:wrap;margin:0;gap:16px 25px}.js .nav:not(.open){display:none}.hero{padding-top:45px}.hero-top{grid-template-columns:1fr;gap:12px;padding-bottom:28px}.hero h1{max-width:620px;font-size:clamp(3rem,9vw,4.5rem)}.hero-copy{max-width:600px}.lead{font-size:18px}.proof-strip{flex-wrap:wrap;justify-content:start;gap:12px 25px}.section{padding:60px 0}.section-head,.split{display:block}.section-head p{margin-top:20px}.split figure{margin-top:30px}.grid{grid-template-columns:1fr}.card-number{margin-bottom:24px}.cta-band{padding:30px;display:block;margin:50px auto}.cta-band .button{margin-top:25px}.docs-layout{display:block}.doc-nav{position:static;margin-bottom:35px;border-bottom:1px solid var(--line);padding-bottom:15px}.doc-nav .nav-group{display:flex;flex-wrap:wrap;gap:4px;margin:0 0 16px}.doc-nav strong{width:100%;margin-bottom:6px}.doc-nav a{border:0;padding:4px 10px 4px 0}.gallery{gap:25px;grid-template-columns:1fr}.feature-row{grid-template-columns:35px 1fr;gap:20px}.feature-row>div:last-child{grid-column:2}.footer-top,.footer-bottom{display:block}.footer-links{margin-top:25px;gap:15px 22px}.footer-bottom span{display:block;margin-bottom:10px}.page-head{padding-top:28px}.page-head h1{font-size:2.7rem}.lightbox{padding:12px}.lightbox-toolbar{flex-wrap:wrap;gap:8px}.lightbox-toolbar h2{flex-basis:100%}.lightbox-image{max-height:65dvh}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.product-frame figure{margin:0}.product-frame figcaption{padding:14px 20px}.lightbox-image img{height:auto}.prose a{overflow-wrap:anywhere}
.principles-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:30px 0 40px}
@media(max-width:800px){.principles-grid{grid-template-columns:1fr}}

/* Documentation Design System Extensions */
.meta-strip{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 32px;align-items:center}
.meta-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:#0e1726;border:1px solid #23344e;border-radius:20px;font-size:13px;color:#cbd5e1;font-weight:500}
.meta-chip.xp{border-color:#facc1555;background:#25200c;color:#fef08a}
.meta-chip.difficulty{border-color:#79e2df55;background:#0b2128;color:var(--cyan)}
.meta-chip.screens{border-color:#baabf655;background:#1b1733;color:var(--violet)}

.toc-box{background:linear-gradient(145deg,#0d1829,#09101d);border:1px solid #22354f;border-radius:10px;padding:22px 24px;margin:30px 0 45px}
.toc-box h3{font-size:1.05rem;color:var(--cyan);text-transform:uppercase;letter-spacing:.08em;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.toc-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px 20px}
.toc-list li{margin:0;padding:0}
.toc-list a{color:#cbd5e1;text-decoration:none;font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:color .15s}
.toc-list a:hover{color:#fff;text-decoration:underline}
.toc-list a::before{content:"→";color:var(--cyan);font-size:12px}

.callout-tip{border-left:3px solid #10b981;background:#07201a;padding:20px 24px;margin:26px 0;border-radius:0 6px 6px 0}
.callout-warning{border-left:3px solid #f59e0b;background:#261806;padding:20px 24px;margin:26px 0;border-radius:0 6px 6px 0}
.callout-deepdive{border-left:3px solid var(--violet);background:#17142d;padding:20px 24px;margin:26px 0;border-radius:0 6px 6px 0}
.callout-xp{border-left:3px solid #facc15;background:#25200c;padding:20px 24px;margin:26px 0;border-radius:0 6px 6px 0}
.callout-tip strong{color:#6ee7b7}
.callout-warning strong{color:#fcd34d}
.callout-deepdive strong{color:#d8b4fe}
.callout-xp strong{color:#fef08a}

kbd{display:inline-block;padding:2px 6px;font:12px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;color:#f8fafc;background:#152236;border:1px solid #354a6c;border-bottom:2px solid #20314c;border-radius:4px;box-shadow:0 1px 0 #0004}

.step-card{background:linear-gradient(145deg,#0d1829,#09101d);border:1px solid #20314c;border-radius:10px;padding:26px;margin:32px 0}
.step-header{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.step-num{display:inline-flex;justify-content:center;align-items:center;min-width:32px;height:32px;border-radius:50%;background:var(--cyan);color:#081b1d;font-weight:800;font-size:14px}
.step-header h3{margin:0;font-size:1.35rem;color:#fff}

.guide-footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:55px;padding-top:30px;border-top:1px solid var(--line)}
.guide-footer-btn{display:block;padding:20px;background:#0d1829;border:1px solid #20314c;border-radius:8px;text-decoration:none;transition:border-color .15s}
.guide-footer-btn:hover{border-color:var(--cyan);text-decoration:none}
.guide-footer-btn .subtext{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px;display:block}
.guide-footer-btn .title{font-size:16px;font-weight:600;color:#fff;display:block}
.guide-footer-btn.prev{text-align:left}
.guide-footer-btn.next{text-align:right}

/* Guide Hub Learning Tracks */
.track-section{margin-bottom:45px}
.track-header{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.track-badge{padding:4px 10px;border-radius:12px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.1em}
.track-badge.track-1{background:#0d2d3a;color:var(--cyan);border:1px solid #1a5166}
.track-badge.track-2{background:#231a42;color:var(--violet);border:1px solid #3c2f6d}
.track-badge.track-3{background:#1a3124;color:#6ee7b7;border:1px solid #28573d}
.track-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
@media(max-width:700px){.guide-footer-nav{grid-template-columns:1fr}.guide-footer-btn.next{text-align:left}}