:root{
  --bg:#f6f7f9; --panel:#fff; --side:#eef0f4; --text:#1c2230; --muted:#6b7385; --line:#e1e4ea;
  --accent:#4f46e5; --accent-t:#fff; --soft:#f1f2f6; --err:#c0262d; --ok:#15803d; --warn:#b45309;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#14161b; --panel:#1b1e25; --side:#111317; --text:#e6e8ee; --muted:#8d94a5; --line:#2a2f3a;
    --accent:#818cf8; --accent-t:#0b0d12; --soft:#232733; --err:#f87171; --ok:#4ade80; --warn:#fbbf24;
  }
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--text);font:14px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
.hidden{display:none!important}
.muted{color:var(--muted)} .small{font-size:12px} .err{color:var(--err);min-height:18px;font-size:13px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px}
.btn{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:7px 12px;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--soft)}
.btn.primary{background:var(--accent);color:var(--accent-t);border-color:transparent;font-weight:600}
.btn.danger{color:var(--err)}
.btn.wide{width:100%}
.btn:disabled{opacity:.5;cursor:default}
.link{background:none;border:0;color:var(--muted);text-decoration:underline;cursor:pointer}
.iconbtn{background:none;border:0;font-size:20px;cursor:pointer;display:none}
input,select,textarea{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:7px 10px}
textarea{resize:vertical}
.label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:16px 4px 6px}

#login{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px}
#login form{width:100%;max-width:360px;display:flex;flex-direction:column;gap:10px}
#login h1{margin:0}

#app{display:flex;height:100%}
#side{width:250px;flex-shrink:0;background:var(--side);border-right:1px solid var(--line);padding:14px;display:flex;flex-direction:column;overflow:auto}
.brand{font-weight:800;font-size:18px;margin:0 4px 12px}
.proj{padding:7px 10px;border-radius:8px;cursor:pointer;display:flex;gap:6px;align-items:center}
.proj:hover,.proj.on{background:var(--soft)} .proj.on{font-weight:600}
.proj .n{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.2s infinite;flex-shrink:0}
@keyframes pulse{50%{opacity:.3}}
.foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}

#main{flex:1;min-width:0;display:flex;flex-direction:column}
.emptystate{max-width:560px;margin:15vh auto;text-align:center;padding:16px}
#proj{display:flex;flex-direction:column;height:100%}
#phead{display:flex;align-items:center;gap:12px;padding:12px 18px;background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap}
.ptitle{flex:1;min-width:180px} .ptitle h2{margin:0;font-size:18px}
.ceremonies{display:flex;gap:6px;flex-wrap:wrap}
#tabs{display:flex;gap:2px;padding:0 14px;background:var(--panel);border-bottom:1px solid var(--line);overflow-x:auto}
#tabs button{background:none;border:0;border-bottom:2px solid transparent;padding:9px 12px;cursor:pointer;color:var(--muted)}
#tabs button.on{color:var(--text);border-bottom-color:var(--accent);font-weight:600}
.tab{flex:1;overflow:auto;padding:16px 18px}
.toolbar{display:flex;gap:8px;margin-bottom:12px;align-items:center;flex-wrap:wrap}

/* chat */
#t-chat{display:flex;flex-direction:column;padding:0}
#msgs{flex:1;overflow:auto;padding:16px 18px}
.msg{display:flex;gap:10px;margin:0 0 14px;max-width:900px}
.av{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px}
.msg .b{min-width:0;flex:1}
.msg .h{font-size:12px;color:var(--muted)} .msg .h b{color:var(--text);font-size:13px}
.msg.user{margin-left:auto;flex-direction:row-reverse}
.msg.user .b{background:var(--soft);border-radius:12px;padding:8px 12px;flex:0 1 auto}
.msg.system .b{color:var(--muted);font-size:13px}
.msg.status{justify-content:center;color:var(--muted);font-size:12px}
.md{overflow-wrap:anywhere} .md p{margin:.35em 0} .md pre{background:var(--soft);padding:8px 10px;border-radius:8px;overflow:auto;font-size:12px}
.md code{background:var(--soft);padding:1px 4px;border-radius:4px;font-size:.9em} .md pre code{background:none;padding:0}
.md table{border-collapse:collapse} .md td,.md th{border:1px solid var(--line);padding:3px 7px}
details.tool{margin:0 0 6px 42px;font-size:12px;max-width:860px}
details.tool summary{cursor:pointer;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
details.tool pre{background:var(--soft);padding:8px;border-radius:8px;white-space:pre-wrap;max-height:300px;overflow:auto;margin:4px 0}
.typing{padding:4px 18px;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#composer{border-top:1px solid var(--line);background:var(--panel);padding:10px 18px}
#composer .row{display:flex;gap:8px;align-items:flex-end}
#input{flex:1;max-height:30vh;min-height:40px}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:6px}
.chip{border:1px solid var(--line);border-radius:20px;padding:2px 9px;font-size:12px;cursor:pointer;background:var(--panel)}
.chip i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px}

/* backlog */
table.list{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
table.list th{font-size:11px;text-transform:uppercase;color:var(--muted);text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
table.list td{padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
table.list tr:hover td{background:var(--soft);cursor:pointer}
.badge{display:inline-block;border-radius:6px;padding:1px 7px;font-size:11px;font-weight:600;background:var(--soft);color:var(--muted);white-space:nowrap}
.s-new{background:#e5e7eb;color:#374151}.s-ready{background:#dbeafe;color:#1e40af}.s-todo{background:#e0e7ff;color:#3730a3}
.s-in_progress{background:#fef3c7;color:#92400e}.s-review,.s-testing{background:#fae8ff;color:#86198f}
.s-done{background:#dcfce7;color:#166534}.s-rejected{background:#fee2e2;color:#991b1b}
.t-bug{color:var(--err)} .t-epic{color:#7c3aed}

.board{display:grid;grid-template-columns:repeat(5,minmax(180px,1fr));gap:10px;min-width:900px}
.col{background:var(--soft);border-radius:10px;padding:8px;min-height:200px}
.col h4{margin:2px 4px 8px;font-size:12px;text-transform:uppercase;color:var(--muted)}
.kcard{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:8px;margin-bottom:8px;cursor:pointer;font-size:13px}
.kcard .m{display:flex;justify-content:space-between;margin-top:6px;font-size:11px;color:var(--muted)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.agent{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:8px}
.agent .top{display:flex;gap:10px;align-items:center}
.agent textarea{min-height:110px;font-size:12px}
.agent .row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.sprint{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:12px}

.codewrap{display:grid;grid-template-columns:280px 1fr;gap:14px;height:100%}
#tree div,#gitlog div{padding:3px 6px;border-radius:6px;cursor:pointer;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#tree div:hover,#gitlog div:hover{background:var(--soft)}
.viewer{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px;margin:0;overflow:auto;font-size:12px;white-space:pre}

dialog{border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--text);padding:0;width:min(640px,94vw)}
dialog::backdrop{background:rgba(0,0,0,.35)}
dialog form{padding:18px;display:flex;flex-direction:column;gap:10px}
dialog h3{margin:0}
dialog .row{display:flex;gap:8px;flex-wrap:wrap} dialog .row>*{flex:1;min-width:120px}
dialog .actions{display:flex;gap:8px;justify-content:flex-end;margin-top:6px}
dialog label{font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:3px}

@media (max-width:820px){
  #side{position:fixed;inset:0 auto 0 0;z-index:10;transform:translateX(-100%);transition:transform .2s;box-shadow:0 0 30px rgba(0,0,0,.3)}
  #side.open{transform:none}
  .iconbtn{display:block}
  .ceremonies .btn{padding:6px 8px;font-size:13px}
  .codewrap{grid-template-columns:1fr}
  .tab{padding:12px}
}