:root{--ink:#20231f;--muted:#70746d;--paper:#f4f2ec;--card:#fffdf7;--line:#dedbd2;--accent:#5b6cf9;--gold:#f1c66d;--green:#177d60;--red:#b64a42;--shadow:0 16px 50px rgba(38,39,34,.08);font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}.shell{min-height:100vh;display:grid;grid-template-columns:238px 1fr}.sidebar{position:sticky;top:0;height:100vh;padding:28px 20px;background:#20231f;color:#fff;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:750}.brand img{width:40px;height:40px}.brand small{display:block;color:#aeb3aa;font-weight:450;font-size:11px;letter-spacing:.12em;margin-top:2px}.nav{display:grid;gap:7px;margin-top:40px}.nav button{border:0;background:transparent;color:#bfc3bb;text-align:left;border-radius:13px;padding:12px 14px;display:flex;align-items:center;gap:11px}.nav button.active,.nav button:hover{background:#343832;color:#fff}.nav .ico{width:22px;text-align:center}.source-note{margin-top:auto;color:#92988d;font-size:11px;line-height:1.6}.main{padding:32px clamp(22px,5vw,68px) 80px;max-width:1440px;width:100%}.topline{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:28px}.eyebrow{color:var(--muted);font-size:13px}.topline h1{margin:4px 0 0;font-size:clamp(29px,4vw,48px);font-family:Georgia,"Noto Serif SC",serif;font-weight:500;letter-spacing:-.03em}.pill{border:1px solid var(--line);background:rgba(255,255,255,.55);border-radius:99px;padding:8px 12px;color:var(--muted);font-size:12px}.grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:18px}.stack{display:grid;gap:18px}.card{background:var(--card);border:1px solid rgba(200,196,185,.6);border-radius:20px;padding:20px;box-shadow:var(--shadow)}.card h2,.card h3{margin:0}.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-head h2{font-size:17px}.hint,.meta{color:var(--muted);font-size:12px}.hero{background:linear-gradient(135deg,#272a25,#3b4038);color:#fff;padding:26px}.hero h2{font-family:Georgia,"Noto Serif SC",serif;font-weight:500;font-size:27px}.hero p{color:#cfd3cb;line-height:1.7}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.btn{border:0;border-radius:12px;padding:11px 15px;background:var(--ink);color:#fff;font-weight:650}.btn.primary{background:var(--gold);color:#26261f}.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}.btn.small{padding:7px 10px;font-size:12px}.hero .btn.ghost{border-color:#62675f;color:#fff}.list{display:grid;gap:10px}.item{border:1px solid var(--line);border-radius:14px;padding:13px;display:grid;gap:7px}.item-row{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.item strong{font-size:14px}.tag{font-size:10px;text-transform:uppercase;letter-spacing:.06em;border-radius:99px;padding:4px 7px;background:#eceafc;color:#4956c5;white-space:nowrap}.tag.demo{background:#fff0d2;color:#8c641a}.tag.ok{background:#dff3e9;color:#176c51}.tag.warn{background:#f8e3df;color:#9c413a}.project-line{height:6px;border-radius:10px;background:#ece9e1;overflow:hidden}.project-line i{display:block;height:100%;background:var(--accent)}.quick{display:flex;gap:9px}.quick input,.composer textarea,.form-field{width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px;color:var(--ink);outline:none}.quick input:focus,.composer textarea:focus,.form-field:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,108,249,.12)}.chat-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:18px;min-height:68vh}.conversations{padding:13px}.conversation{width:100%;border:0;background:transparent;text-align:left;padding:11px;border-radius:11px;color:var(--ink)}.conversation.active{background:#eeece5}.chat-panel{display:flex;flex-direction:column;min-height:68vh}.messages{flex:1;display:flex;flex-direction:column;gap:15px;overflow:auto;padding:6px}.message{max-width:78%;padding:13px 15px;border-radius:16px;line-height:1.65;white-space:pre-wrap;font-size:14px}.message.user{margin-left:auto;background:var(--ink);color:#fff;border-bottom-right-radius:4px}.message.assistant{background:#efede6;border-bottom-left-radius:4px}.composer{border-top:1px solid var(--line);margin-top:15px;padding-top:15px}.composer textarea{resize:none;min-height:84px}.composer-foot{display:flex;justify-content:space-between;align-items:center;margin-top:9px}.empty{padding:30px;text-align:center;color:var(--muted)}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.tabs button{border:1px solid var(--line);background:transparent;border-radius:99px;padding:7px 12px}.tabs button.active{background:var(--ink);color:#fff;border-color:var(--ink)}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.project-card{min-height:180px}.memory{border-left:3px solid var(--gold)}.toast{position:fixed;right:24px;bottom:24px;background:var(--ink);color:#fff;padding:12px 16px;border-radius:12px;box-shadow:var(--shadow);z-index:20}.modal-backdrop{position:fixed;inset:0;background:rgba(25,25,22,.48);display:grid;place-items:center;padding:18px;z-index:30}.modal{background:var(--card);width:min(520px,100%);border-radius:20px;padding:22px;box-shadow:0 30px 90px rgba(0,0,0,.25)}.modal h2{margin-top:0}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.boot{display:grid;place-items:center;height:100vh;color:var(--muted)}.bottom-nav{display:none}.error{border-color:#d8857e;color:var(--red)}
@media(max-width:900px){.shell{grid-template-columns:1fr}.sidebar{display:none}.main{padding:24px 18px 92px}.grid{grid-template-columns:1fr}.project-grid{grid-template-columns:1fr 1fr}.bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);bottom:0;left:0;right:0;padding:7px 8px max(7px,env(safe-area-inset-bottom));background:rgba(255,253,247,.94);backdrop-filter:blur(18px);border-top:1px solid var(--line);z-index:10}.bottom-nav button{border:0;background:transparent;color:var(--muted);padding:7px 2px;font-size:10px}.bottom-nav button span{display:block;font-size:19px;margin-bottom:2px}.bottom-nav button.active{color:var(--ink);font-weight:700}.chat-layout{grid-template-columns:1fr}.conversations{display:flex;overflow:auto;gap:5px}.conversation{white-space:nowrap;width:auto}.chat-panel{min-height:62vh}}
@media(max-width:560px){.topline{align-items:flex-start}.pill{display:none}.project-grid{grid-template-columns:1fr}.hero{padding:22px}.quick{flex-direction:column}.message{max-width:90%}.card{padding:17px}.main{padding-left:14px;padding-right:14px}.topline h1{font-size:32px}}
.runtime-strip{margin:0 0 12px;padding:9px 12px;border-radius:10px;background:#eef1ff;color:#39458f;font-size:12px}.composer select{border:1px solid var(--line);border-radius:9px;padding:8px;background:#fff;margin-right:6px}

.quick .btn{white-space:nowrap;flex-shrink:0}
.owner-supported{margin-top:18px}
.owner-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0}.owner-summary>span{background:var(--card,#fffdf7);border:1px solid var(--line);border-radius:14px;padding:16px;font-size:12px}.owner-summary b{display:block;font-size:28px;margin-top:6px}.owner-source{overflow-wrap:anywhere}.owner-costs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.owner-costs>div{border-bottom:1px solid var(--line)}.stack,.card,.grid>div{min-width:0}.card h2{overflow-wrap:anywhere}.btn:disabled{opacity:.55;cursor:not-allowed}.btn:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #886b2b;outline-offset:3px}@media(max-width:700px){.owner-summary{grid-template-columns:repeat(2,minmax(0,1fr))}.topline{flex-wrap:wrap}.topline .hero-actions{margin-top:4px}.owner-costs{grid-template-columns:1fr}.owner-summary>span{padding:12px}}
/* Phase 2: execution, provenance, memory and observability */
.message-wrap{display:flex;flex-direction:column}.message-wrap.user{align-items:flex-end}.message-meta{font-size:10px;color:var(--muted);margin:4px 7px}.tag.suggest{background:#e6ebff;color:#4353c6}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:6px;background:var(--muted)}.status-dot.ok{background:var(--green)}.status-dot.warn{background:#d38b32}.hero-actions.compact{gap:6px;margin-top:10px}.metrics{display:flex;gap:24px;padding:10px 0}.metrics span{font-size:20px;font-weight:750}.metrics small{display:block;font-size:9px;color:var(--muted);font-weight:500}.ai-note{background:#eef1ff;color:#39458f;padding:9px 10px;border-radius:9px;font-size:12px;line-height:1.55}.chips{display:flex;flex-wrap:wrap;gap:5px}.chips span,.sources span{background:#efede7;border-radius:99px;padding:4px 7px;font-size:10px;color:var(--muted)}.failure-box{margin-top:12px;padding:12px;background:#f8e3df;border-radius:12px;color:#873b35;font-size:12px}.link-btn{border:0;background:none;text-decoration:underline;color:inherit}.error-text{color:var(--red);font-size:12px}.project-facts{display:grid;grid-template-columns:70px 1fr;gap:6px;margin:15px 0;font-size:12px}.project-facts dt{color:var(--muted)}.project-facts dd{margin:0}.sources{display:flex;gap:4px;flex-wrap:wrap;margin:4px 7px}.inline-actions{display:flex;gap:5px;flex-wrap:wrap;margin:5px 7px}.inline-actions button{border:0;background:transparent;color:#4a57be;font-size:11px;padding:3px 0;margin-right:8px}.prewrap{white-space:pre-wrap;line-height:1.7}.conflict{border-color:#e3a9a2;background:#fff8f7}details{margin-top:16px}summary{cursor:pointer;color:var(--muted);font-size:12px}.modal{width:min(620px,100%);max-height:88vh;overflow:auto}.project-card{min-height:230px}.memory{border-left:3px solid var(--gold);padding:13px 16px;background:#fff;border-radius:0 14px 14px 0}