:root{--bg:#F5F7FB;--paper:#fff;--ink:#192A3A;--muted:#526478;--action:#2F5C85;--green:#356F60;--line:#DCE3EC;--soft:#EAF0F7;--warn:#885329;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);font-size:16px}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,textarea,summary,select{touch-action:manipulation}button,a{transition:background .15s}button{cursor:pointer;border:0}button:disabled{opacity:.55;cursor:wait}a{color:var(--action);overflow-wrap:anywhere}h1,h2,p{margin:0}h1{font-size:30px;line-height:1.2;letter-spacing:-.6px;font-weight:650}h2{font-size:19px;line-height:1.35;font-weight:620}p{line-height:1.55}button:focus-visible,a:focus-visible,textarea:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #759CC0;outline-offset:3px}[hidden]{display:none!important}.hint{font-size:14px;color:var(--muted);line-height:1.55}.primary{background:var(--action);color:white;padding:12px 20px;border-radius:10px;font-weight:600;min-height:46px}.primary:hover{background:#244B70}.quiet{padding:10px 13px;min-height:44px;border-radius:8px;background:var(--soft);color:var(--action)}.quiet:hover{background:#DCE7F4}.link-button{display:inline-block;text-decoration:none}.brand-mark{width:58px;height:58px;background:var(--action);color:white;display:grid;place-items:center;border-radius:18px 18px 18px 5px;font-weight:650;font-size:30px}.brand-mark.small{width:36px;height:36px;font-size:20px;border-radius:11px 11px 11px 3px;flex-shrink:0}.login{max-width:460px;margin:12vh auto;padding:32px 26px}.login h1{margin:28px 0 12px}.login p{margin-bottom:20px}.login .hint{margin-top:18px}.shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh;max-width:1600px;margin:auto}aside{padding:30px 18px;background:#EDF2F8;border-right:1px solid var(--line);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px}.brand small{display:block;font-weight:400;color:var(--muted);font-size:12px;margin-top:3px}.sidebar-head{display:flex;justify-content:space-between;align-items:center;margin:40px 12px 10px}.sidebar-head h2{font-size:15px;color:var(--muted)}.icon-button{min-width:44px;min-height:44px;border-radius:8px;background:transparent;font-size:25px;color:var(--action)}#projects{display:grid;gap:5px}#projects button{display:block;width:100%;text-align:left;background:transparent;padding:14px 12px;border-radius:9px;color:var(--ink);font-size:15px;line-height:1.4;overflow-wrap:anywhere}#projects button[aria-current=page]{background:white;box-shadow:0 1px 4px #192A3A0A;font-weight:600}#projects small{display:block;color:var(--muted);font-size:12px;font-weight:400;margin-top:4px}.sidebar-foot{margin-top:auto;padding:25px 12px 0;line-height:1.6;font-size:13px;color:var(--muted)}.sidebar-foot span{font-size:12px}main{padding:36px 48px 50px;min-width:0;max-width:1100px}header{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:28px}header .hint{margin-bottom:8px}.tabs{display:flex;gap:26px;border-bottom:1px solid var(--line);margin-bottom:28px}.tabs button{color:var(--muted);background:transparent;padding:12px 0 15px;border-bottom:3px solid transparent;min-height:48px}.tabs button[aria-current=page]{border-color:var(--action);color:var(--action);font-weight:600}.section-title{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:0 0 15px}.summary{background:var(--paper);border-left:3px solid var(--action);padding:22px 24px;margin-bottom:32px;border-radius:0 12px 12px 0}.summary .hint{margin:0 0 10px}.prose{white-space:pre-wrap;line-height:1.65;max-width:76ch;overflow-wrap:anywhere;font-size:15px}.empty{padding:24px 0 30px;color:var(--muted);max-width:65ch;line-height:1.6}.message{padding:20px 0;border-bottom:1px solid var(--line)}.message:first-child{padding-top:5px}.message-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:14px;margin-bottom:8px}.message-head strong{font-weight:600}.message p{white-space:pre-wrap;overflow-wrap:anywhere;max-width:75ch;font-size:15px}.message-footer{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:10px;font-size:13px;color:var(--muted)}.badge{font-size:12px;border-radius:5px;padding:4px 7px;background:var(--soft);color:var(--muted)}.badge.ready,.badge.active{color:var(--green);background:#E6F0EC}.badge.error,.badge.uncertain,.badge.too_large,.badge.unsupported{color:var(--warn);background:#F6EDE3}.notice{padding:14px 16px;background:#EAF0F7;border-radius:9px;margin:0 0 22px;font-size:14px}.ask{margin-top:36px;padding-top:25px;border-top:1px solid var(--line)}.ask h2{margin-bottom:14px}.ask label{display:block;margin-bottom:8px}.ask-row{display:flex;gap:10px;align-items:stretch}textarea{flex:1;width:100%;min-height:76px;resize:vertical;line-height:1.5;background:white;border:1px solid #BDCAD9;padding:12px;border-radius:10px;color:var(--ink)}.ask .hint{margin-top:12px}.ask #answer{margin-top:18px}.group{padding:18px 0;border-bottom:1px solid var(--line)}.group p{margin:7px 0 12px;font-size:14px;color:var(--muted)}.actions{display:flex;gap:10px;flex-wrap:wrap}.spaced{margin-top:32px}dl{display:grid;grid-template-columns:minmax(130px,1fr) 2fr;gap:14px;margin:20px 0 28px;font-size:14px}dt{color:var(--muted)}dd{margin:0;overflow-wrap:anywhere}details{margin-top:18px}summary{cursor:pointer;min-height:44px;line-height:1.5;padding:10px 0;color:var(--action)}details .prose{font-size:13px;color:var(--muted);margin-bottom:18px}.mobile-select{display:none}dialog{border:1px solid var(--line);border-radius:16px;padding:28px;max-width:460px;width:calc(100% - 32px);color:var(--ink)}dialog::backdrop{background:#192A3A55}dialog label{display:block;font-size:14px;margin-top:18px}input,select{display:block;width:100%;border:1px solid #BDCAD9;padding:12px;border-radius:9px;margin-top:6px;background:white;color:var(--ink)}dialog .hint{margin:18px 0}dialog .actions{justify-content:flex-end}.material-text{margin-top:10px}#settings>.hint{margin-top:20px}#materials>.hint{margin-bottom:22px}
@media(max-width:900px){.shell{grid-template-columns:220px minmax(0,1fr)}main{padding:30px 28px}}@media(max-width:640px){.shell{display:block}aside{display:none}main{padding:24px 20px calc(90px + env(safe-area-inset-bottom));max-width:none}h1{font-size:26px}header{margin-bottom:20px;gap:12px}.mobile-select{display:block;font-size:13px;color:var(--muted);margin:0 0 22px}.mobile-select select{font-size:15px}.tabs{position:fixed;z-index:5;bottom:0;left:0;right:0;margin:0;padding:6px 14px calc(6px + env(safe-area-inset-bottom));background:white;border-top:1px solid var(--line);border-bottom:0;justify-content:space-around;gap:10px}.tabs button{padding:12px 8px;border-bottom:0;border-radius:8px;font-size:14px}.tabs button[aria-current=page]{background:var(--soft)}.summary{padding:18px 16px;margin-bottom:26px}.section-title{align-items:flex-start;gap:10px}.section-title h2{font-size:17px}.section-title>.hint{display:none}.summary .quiet{font-size:13px;white-space:nowrap;padding:8px 10px}.message-head{flex-wrap:wrap;gap:5px}.ask-row{flex-direction:column}.ask-row .primary{align-self:flex-end}.login{margin:9vh auto}dl{grid-template-columns:1fr 1.2fr}.notice{font-size:13px}.actions .quiet{font-size:14px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}