@font-face{font-family:GuideRoboto;src:url('../assets/roboto-latin-variable.woff2') format('woff2');font-weight:100 900;font-display:swap}
:root{color-scheme:light;--ink:#1f2b38;--muted:#5f6b76;--blue:#2868df;--blue-dark:#1a50b3;--line:#dddfe1;--paper:#fff;--back:#f7f6f2;--soft-blue:#eaf0fb;--serif:Georgia,'Times New Roman',serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--back);color:var(--ink);font:16px/1.7 GuideRoboto,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
a{color:var(--blue);text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px;border-radius:5px}
svg{width:20px;height:20px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.shell{width:min(1160px,calc(100% - 64px));margin:0 auto}
.skip-link{position:fixed;top:-100px;left:16px;padding:10px 16px;background:var(--paper);z-index:30;border:1px solid var(--blue);border-radius:8px}
.skip-link:focus{top:10px}
.site-header{position:sticky;top:0;z-index:20;padding:14px 0;background:rgba(247,246,242,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.nav-shell{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:28px}
.brand{display:flex;align-items:center;justify-self:start;gap:12px;min-height:44px;text-decoration:none}
.brand img{display:block;width:165px;height:auto}
.brand-tag{font:600 10px/1 var(--mono);letter-spacing:.04em;color:var(--muted);border-left:1px solid var(--line);padding-left:12px}
.guide-nav{display:flex;justify-content:center;gap:16px;justify-self:end}
.guide-nav a{display:flex;align-items:center;justify-content:center;gap:9px;min-height:40px;padding:8px 0;border-bottom:2px solid transparent;font-size:13px;font-weight:650;text-decoration:none;white-space:nowrap;color:var(--muted);transition:color .16s}
.guide-nav a:hover{color:var(--blue)}
.guide-nav a[aria-current=page]{color:var(--blue);border-bottom-color:var(--blue)}
.guide-nav svg{width:17px;height:17px}
.hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);align-items:center;gap:56px;padding:64px 0 60px}
.eyebrow{display:flex;align-items:center;gap:10px;font:600 11px/1.5 var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}
.guide-number{display:inline-grid;place-items:center;width:28px;height:28px;border:1px solid var(--blue);border-radius:50%;color:var(--blue);letter-spacing:0}
h1{font:400 clamp(38px,4.6vw,58px)/1.08 var(--serif);letter-spacing:-.045em;margin:20px 0 22px}
h1 span{display:block;color:var(--blue)}
p{margin:12px 0}
.lead{font-size:17px;line-height:1.65;color:var(--muted);max-width:530px}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px 24px;margin-top:26px}
.text-link{display:inline-flex;align-items:center;gap:7px;text-decoration:none;font-size:13px;font-weight:650}
.text-link svg{width:15px;height:15px}
.hero-meta{font-size:12px;color:var(--muted);margin:16px 0 0}
.hero-meta span{margin:0 8px;color:#a3a9af}
.hero-visual{margin:0;position:relative}
.visual-label{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#40546c;font:600 10px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase}
.visual-label svg{width:16px;height:16px}
.visual-stage{margin:24px 0}
.visual-stage img{display:block;width:100%;height:auto}
figcaption{color:#53677e;font-size:12px;line-height:1.6;max-width:430px}
.visual-footer{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--blue);margin-top:14px}
.visual-footer svg{width:15px;height:15px}
.guide-divider{display:flex;align-items:center;gap:16px;border-top:1px solid var(--line);padding-top:14px;color:var(--muted);font:500 10px/1.5 var(--mono);letter-spacing:.05em;text-transform:uppercase}
.guide-divider span:last-child{margin-left:auto;text-align:right}
.article-layout{display:grid;grid-template-columns:210px minmax(0,740px);gap:70px;justify-content:space-between;padding:44px 0 64px}
.toc{align-self:start;position:sticky;top:116px;min-width:0}
.toc-title{font:650 11px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 16px}
.toc nav{display:grid;gap:4px}
.toc a{display:flex;align-items:baseline;gap:12px;padding:10px 0;font-size:13px;font-weight:550;line-height:1.45;color:var(--muted);text-decoration:none;border-bottom:1px solid var(--line)}
.toc a:hover{color:var(--blue)}
.toc a span{font:500 10px/1.5 var(--mono);color:var(--blue)}
.toc-date{font-size:11px;color:var(--muted);margin-top:22px}
.guide-content{min-width:0}
.guide-section{margin:0 0 50px}
.section-head{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.section-index{font:500 12px/1 var(--mono);color:var(--blue);border:1px solid #c8d7ee;border-radius:7px;display:grid;place-items:center;width:34px;height:34px;flex-shrink:0}
h2{font:400 30px/1.2 var(--serif);letter-spacing:-.025em;margin:0}
h3{font-size:20px;line-height:1.4;margin:26px 0 10px;font-weight:650}
.example-figure{margin:28px 0 30px}
.example-grid{display:grid;gap:20px}
.example-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.example-grid>div{min-width:0}
.example-photo{aspect-ratio:1;margin-bottom:12px}
.example-photo img{display:block;width:100%;height:100%;object-fit:contain}
.example-grid strong{display:block;font-size:14px;font-weight:650;line-height:1.4}
.example-grid span{display:block;font-size:12px;line-height:1.6;color:var(--muted);margin-top:3px}
.example-figure figcaption{max-width:none;margin-top:16px;color:var(--muted);font-size:13px}
.screenshot-help{font-size:12px;color:var(--muted);margin:12px 0 0}
.ui-figure{margin:28px 0 32px;max-width:640px}
.ui-figure.compact{max-width:420px}
.ui-screenshot-button{display:block;width:100%;padding:0;border:0;background:transparent;color:inherit;font:inherit;text-align:inherit;cursor:zoom-in}
.ui-screenshot-button img{display:block;width:100%;height:auto}
/* Match captured popup corners so their surrounding backdrop is not shown. */
[data-ui-shot="saved-projects"]{--ui-radius:3.6% / 4.51%}
[data-ui-shot="shadow-color"]{--ui-radius:5.35% / 3.27%}
[data-ui-shot="drop-shadow"]{--ui-radius:4.05% / 3.7%}
[data-ui-shot="add-output"]{--ui-radius:2.15% / 1.66%}
[data-ui-shot="save-project"]{--ui-radius:3.82% / 2.3%}
.ui-screenshot-button img,.guide-lightbox-image{clip-path:inset(1px round var(--ui-radius,0))}
.ui-figure figcaption{max-width:none;font-size:13px;line-height:1.7;color:var(--muted);margin-top:12px}
.ui-figure figcaption strong{color:var(--ink);font-weight:650}
.guide-lightbox{position:fixed;inset:0;width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:16px;border:0;background:transparent;color:#fff;overflow:hidden}
.guide-lightbox::backdrop{background:#11151e}
.guide-lightbox[open]{display:flex;flex-direction:column;gap:12px}
.guide-lightbox-toolbar{display:flex;justify-content:flex-end;gap:8px;flex-shrink:0}
.guide-lightbox-toolbar button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 16px;border:0;border-radius:8px;background:#ffffff18;color:#fff;font:600 14px/1.4 GuideRoboto,system-ui,sans-serif;cursor:pointer}
.guide-lightbox-toolbar button:hover{background:#ffffff2b}
.guide-lightbox-toolbar .guide-lightbox-close{width:44px;padding:0;font-size:28px;font-weight:400}
.guide-lightbox-stage{display:flex;align-items:center;justify-content:center;flex:1;min-height:0;overflow:auto;overscroll-behavior:contain}
.guide-lightbox-image{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;cursor:zoom-in}
.guide-lightbox.is-zoomed .guide-lightbox-stage{display:block}
.guide-lightbox.is-zoomed .guide-lightbox-image{max-width:none;max-height:none;margin:0 auto;cursor:zoom-out}
.guide-lightbox-caption{width:min(100%,760px);margin:0 auto;flex-shrink:0;color:#dce3ed;font-size:14px;line-height:1.5;text-align:center}
.table-wrap{overflow:auto;margin:24px 0;scrollbar-width:thin}
.guide-table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.65;text-align:left}
.guide-table caption{text-align:left;font-weight:650;margin-bottom:12px;color:var(--ink)}
.guide-table :is(th,td){padding:14px 14px 14px 0;vertical-align:top;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
.guide-table th{font-weight:600;width:32%;color:var(--ink)}
.guide-table thead th{font:600 11px/1.5 var(--mono);letter-spacing:.03em;text-transform:uppercase;color:var(--muted)}
.guide-table td{color:var(--muted);padding-right:0}
.checklist{list-style:none;margin:0;padding:0;display:grid;gap:0}
.checklist li{position:relative;padding:16px 0 16px 30px;border-bottom:1px solid var(--line)}
.checklist li:first-child{padding-top:0}
.checklist li:last-child{border-bottom:0}
.checklist li::before{content:'✓';position:absolute;left:0;color:var(--blue);font-size:15px}
.steps{list-style:none;counter-reset:step;margin:0;padding:0}
.steps>li{counter-increment:step;position:relative;padding:23px 0 23px 66px;border-bottom:1px solid var(--line)}
.steps>li:first-child{padding-top:4px}
.steps>li:last-child{border-bottom:0;padding-bottom:0}
.steps>li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:24px;display:grid;place-items:center;width:42px;height:42px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--blue);font:600 12px/1 var(--mono)}
.steps>li:first-child::before{top:4px}
.steps strong{font-size:17px;font-weight:650;line-height:1.45;display:block}
.steps p{margin:8px 0 0;color:var(--muted)}
code{font:500 .85em/1.5 var(--mono);padding:2px 5px;border-radius:4px;background:#e8edf4;color:#334d70;overflow-wrap:anywhere}
.note-panel{border-left:3px solid var(--blue);background:var(--soft-blue);padding:18px 24px;border-radius:0 9px 9px 0}
.note-panel p{margin:0}
.faq{border-top:1px solid var(--line)}
.faq:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{position:relative;padding:18px 30px 18px 0;font-size:16px;font-weight:600;line-height:1.5;list-style:none;cursor:pointer}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';position:absolute;right:2px;top:17px;font:400 22px/1.2 var(--mono);color:var(--blue)}
.faq[open] summary::after{content:'−'}
.faq p{margin:0 24px 20px 0;color:var(--muted)}
.guide-note{display:flex;gap:12px;align-items:flex-start;padding:18px 0;font-size:13px;line-height:1.7;color:var(--muted)}
.guide-note svg{margin-top:2px;color:var(--blue);width:18px;height:18px}
.guide-note p{margin:0}
.end-panel{padding:12px 0 32px;margin-bottom:28px}
.end-panel h2{font-size:32px}
.end-panel p{font-size:14px;color:var(--muted);margin:8px 0 0}
.related-guide{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;color:var(--ink);text-decoration:none;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.related-guide small{display:block;color:var(--muted);font:500 10px/1.5 var(--mono);text-transform:uppercase;letter-spacing:.06em;margin-bottom:5px}
.related-guide strong{font-weight:550;font-size:17px}
.related-guide>svg{color:var(--blue);width:24px;height:24px}
.related-guide:hover strong{color:var(--blue)}
.site-footer{border-top:1px solid var(--line);padding:24px 0 32px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--muted);font-size:12px}
.footer-inner p{margin:0}
.footer-inner a{text-decoration:none;font-weight:600}
@media(min-width:1500px){.hero{padding-top:84px;padding-bottom:76px}}
@media(max-width:1000px){.nav-shell{gap:16px}.brand img{width:145px}.brand-tag{display:none}.guide-nav a{padding:8px 10px}.hero{gap:30px}.article-layout{gap:40px;grid-template-columns:175px minmax(0,1fr)}}
@media(max-width:760px){
  html{scroll-padding-top:145px}
  .shell{width:calc(100% - 40px)}
  .site-header{padding:12px 0}
  .nav-shell{grid-template-columns:1fr;gap:12px}
  .brand img{width:145px}
  .guide-nav{grid-column:1/-1;grid-row:2;justify-self:stretch;display:grid;grid-template-columns:1fr 1fr}
  .guide-nav a{min-height:38px;font-size:12px;padding:7px 8px}
  .hero{grid-template-columns:1fr;gap:30px;padding:38px 0 32px}
  h1{font-size:clamp(38px,7vw,54px);max-width:600px}
  .lead{font-size:16px;max-width:none}
  .hero-visual{max-width:550px;width:100%;margin:0 auto}
  .article-layout{grid-template-columns:1fr;gap:32px;padding:28px 0 36px}
  .toc{position:static;padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:10px}
  .toc-title{margin-bottom:8px}
  .toc nav{grid-template-columns:1fr 1fr;gap:0 18px}
  .toc a{font-size:12px;padding:9px 0;gap:8px}
  .toc-date{display:none}
  .guide-section{margin-bottom:40px}
}
@media(max-width:400px){
  .shell{width:calc(100% - 32px)}
  .brand img{width:130px}
  .hero{padding-top:30px}
  .hero-actions{gap:14px}
  .hero-meta{font-size:11px}
  .visual-stage{margin-top:16px}
  .visual-label{font-size:9px}
  .guide-divider{font-size:9px}
  h2{font-size:27px}
  .section-head{gap:12px}
  .steps>li{padding-left:52px}
  .steps>li::before{width:35px;height:35px}
  .steps strong{font-size:16px}
  .toc{padding:16px}
  .footer-inner{align-items:flex-start;flex-direction:column;gap:8px}
  .end-panel h2{font-size:29px}
}
@media(max-width:560px){.example-grid.three{grid-template-columns:1fr;gap:28px}.example-grid>div{width:min(280px,100%);justify-self:center}.guide-table{font-size:13px}.guide-table :is(th,td){padding:12px 10px 12px 0}.guide-table td{padding-right:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}a{transition:none!important}}