@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
:root{color-scheme:light;--ink:#26334b;--muted:#72809b;--line:#e3e8f1;--blue:#4167dd;--paper:#fff;--back:#f4f6fb}*{box-sizing:border-box}body{margin:0;font:14px/1.6 Inter,Arial,sans-serif;color:var(--ink);background:var(--back)}button,input,textarea,select{font:inherit}button,a,input,select,textarea{transition:background .18s,border-color .18s,box-shadow .18s,transform .18s}button{cursor:pointer;border:1px solid var(--line);border-radius:10px;padding:10px 15px;background:white;color:var(--ink)}button:hover{background:#edf2ff;border-color:#bbc8ed}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--blue);color:white;border-color:var(--blue)}a{color:var(--blue);text-decoration:none}label{display:block;font-size:12px;font-weight:600;margin:0 0 20px}input:not([type=checkbox]):not([type=range]):not([type=color]),textarea,select{display:block;width:100%;border:1px solid var(--line);border-radius:10px;background:#fbfcff;color:var(--ink);padding:11px 13px;margin-top:8px}textarea{resize:vertical}input[type=range]{display:block;width:100%;accent-color:var(--blue);margin-top:15px}input[type=color]{display:block;width:100%;height:40px;margin-top:8px;border:1px solid var(--line);background:white;border-radius:8px}input[type=checkbox]{accent-color:var(--blue)}h1,h2,h3,p{margin:0}h1{font-size:20px;letter-spacing:-.6px}h2{font-size:32px;line-height:1.2;letter-spacing:-1px;margin-bottom:14px}h3{font-size:16px}p{margin:8px 0 20px}.shell{display:grid;grid-template-columns:222px minmax(0,1fr);min-height:100vh}.sidebar{padding:28px 18px;background:var(--paper);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:18px}.brand{font-weight:800;font-size:18px;letter-spacing:.4px;display:flex;align-items:center;gap:0;color:#26334b;transform-origin:left center}.brand:hover{transform:scale(1.035)}.brand>span:last-child{color:#45618a}.brand-dot{display:inline-block;width:25px;height:25px;border:2px solid #afc2dc;background:#edf5ff;border-radius:7px;margin-right:9px;position:relative}.brand-dot:after{content:'';position:absolute;width:8px;height:8px;background:#20d9ef;border-radius:50%;left:6.5px;top:6.5px;box-shadow:0 0 10px #20d9ef33}.sidebar nav{display:grid;gap:7px;margin-top:8px}.sidebar nav button{text-align:left;border:0;background:none;padding:12px 10px;font-weight:500}.sidebar nav button.selected{background:#edf2ff;color:var(--blue)}.sidebar-bottom{margin-top:auto;padding-top:40px;display:grid;gap:14px;font-size:12px}.toolbar{display:flex;align-items:center;gap:12px;padding:24px 32px;background:white;border-bottom:1px solid var(--line)}.toolbar>div{margin-right:auto}.eyebrow{font-size:10px;letter-spacing:1.6px;color:var(--muted);font-weight:600}#save-state{font-size:11px;color:var(--muted)}#notice{padding:0 32px;white-space:pre-wrap}#notice:not(:empty){padding:13px 32px;color:#a43b26;background:#fff4ed;border-bottom:1px solid #f1d8cb}.content{padding:32px;max-width:1440px;margin:auto}.intro{max-width:650px;margin:12px 0 28px}.intro p{color:var(--muted)}.card{padding:26px;background:white;border:1px solid var(--line);border-radius:16px;margin-bottom:20px;box-shadow:0 4px 18px #304a7510}.card>label:last-child{margin-bottom:0}.muted{color:var(--muted);font-size:12px}.small{font-size:11px;color:var(--muted)}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}.row>div:first-child{flex:1}.row h2{flex:1;margin:0;font-size:22px}.design{display:grid;grid-template-columns:255px minmax(0,1fr);gap:20px}.controls{padding:18px}.tabs{display:grid;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:24px}.tabs button{font-size:11px;padding:8px}.selected{background:#edf2ff!important;color:var(--blue)!important}.check{display:flex;gap:10px;align-items:center;font-size:14px}#stage{position:relative;min-height:740px;border:1px solid var(--line);border-radius:16px;background:radial-gradient(#bdc9df60 .8px,transparent .8px),#fff;background-size:18px 18px;overflow:hidden}.site-sample{padding:40px 30px;color:#aeb9cd}.site-sample span{font-size:10px;letter-spacing:2px}.site-sample h2{font-size:27px;margin:30px 0}.site-sample>div{height:10px;background:#edf1f8;border-radius:9px;margin:12px 0;width:65%}.site-sample>div:last-child{width:45%}dialog{width:min(760px,95vw);border:1px solid var(--line);border-radius:20px;padding:26px;color:var(--ink);box-shadow:0 25px 100px #15274a30}dialog::backdrop{background:#15274a55;backdrop-filter:blur(4px)}#test-stage{position:relative;height:640px;background:#f6f8fc;border-radius:14px}#help-log{max-height:340px;overflow:auto;white-space:pre-wrap}#help-log p{padding:14px;background:#f2f5fc;border-radius:12px}section[hidden],[hidden]{display:none!important}.content>section{animation:enter .2s ease-out}.key-row{display:flex;gap:10px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.key-row span{flex:1}code{overflow-wrap:anywhere}output{float:right}.inbox-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:24px}.thread-list{display:grid;align-content:start;gap:8px}.thread-list button{text-align:left}.chat-log{min-height:200px;max-height:500px;overflow:auto}.chat-log p{white-space:pre-wrap;border-radius:12px;background:#f1f4fc;padding:12px}.chat-log .user{background:#e9efff}.chat-log small{display:block;color:var(--muted)}@keyframes enter{from{opacity:.4;transform:translateY(5px)}to{opacity:1;transform:none}}@media(max-width:1000px){.shell{grid-template-columns:180px minmax(0,1fr)}.brand{font-size:15px}.content,.toolbar{padding:20px}.design{grid-template-columns:220px minmax(0,1fr)}.toolbar{flex-wrap:wrap}#save-state{display:none}}@media(max-width:760px){.shell{display:block}.sidebar{padding:18px}.sidebar nav{grid-template-columns:repeat(3,1fr)}.sidebar-bottom{padding-top:0;margin-top:0;display:flex;flex-wrap:wrap}.sidebar>label,.sidebar>#create{display:none}.design,.inbox-layout{grid-template-columns:1fr}.controls{margin-bottom:0}.toolbar{padding:18px}h2{font-size:27px}.content{padding:18px}.card{padding:20px}#stage{min-height:680px}.sidebar nav button{font-size:11px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}