:root{--bg:#0b0f14;--panel:#0f1620;--line:rgba(255,255,255,.08);--text:#e8eef7;--muted:rgba(232,238,247,.65);--chip:rgba(255,255,255,.06);--shadow:0 10px 30px rgba(0,0,0,.35);}
html[data-theme="clean_light"]{--bg:#f5f7fb;--panel:#ffffff;--line:rgba(0,0,0,.08);--text:#0b1220;--muted:rgba(11,18,32,.65);--chip:rgba(0,0,0,.05);}
html,body{height:100%;}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,Segoe UI,Arial;overflow:hidden;}
.topbar{display:flex;align-items:center;gap:14px;padding:10px 14px;border-bottom:1px solid var(--line);background:rgba(0,0,0,.15);backdrop-filter:blur(10px);}
.brand{display:flex;align-items:center;gap:10px;min-width:220px}
.brandDot{width:10px;height:10px;border-radius:999px;background:var(--text);opacity:.9}
.brandTitle{font-weight:800;font-size:14px;line-height:1}
.brandSub{font-size:12px;color:var(--muted);line-height:1.1;margin-top:2px}
.navLinks{display:flex;gap:8px;flex:1;min-width:280px;overflow:auto;padding-bottom:2px}
.navLinks a{display:inline-flex;align-items:center;gap:8px;padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:var(--chip);text-decoration:none;color:var(--text);white-space:nowrap}
.navLinks a:hover{border-color:rgba(255,255,255,.18)}
.topControls{display:flex;align-items:center;gap:14px}
.ctlGroup{display:flex;align-items:center;gap:8px}
.ctlLabel{font-size:12px;color:var(--muted)}
.ctlSelect{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:999px;padding:6px 10px}
.statusStrip{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.pill{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:6px 10px;background:var(--chip);color:var(--muted)}
.shell{display:grid;grid-template-columns:280px 1fr 320px;gap:12px;height:calc(100vh - 56px);padding:12px;box-sizing:border-box}
.pane{background:rgba(0,0,0,.12);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;min-height:0}
.paneHead{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--line)}
.paneHead--center{gap:10px}
.paneTitle{font-weight:800}
.paneActions{display:flex;gap:8px}
.iconBtn{width:32px;height:32px;border-radius:10px;border:1px solid var(--line);background:var(--chip);color:var(--text);cursor:pointer}
.iconBtn:hover{border-color:rgba(255,255,255,.18)}
.railSection{padding:12px;display:flex;flex-direction:column;gap:10px;min-height:0}
.railHead{display:flex;align-items:center;justify-content:space-between;gap:10px}
.railTitle{font-weight:700;color:var(--muted)}
.railList{display:flex;flex-direction:column;gap:8px;overflow:auto;min-height:0}
.railFooter{padding:12px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.centerTitle{display:flex;flex-direction:column;gap:2px}
.muted{color:var(--muted)}
.small{font-size:12px}
.tiny{font-size:11px}
.centerTools{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:rgba(255,255,255,.08);color:var(--text);padding:8px 12px;border-radius:12px;cursor:pointer}
.btn:hover{border-color:rgba(255,255,255,.18)}
.btn--ghost{background:transparent}
.thread{padding:12px;overflow:auto;min-height:0;display:flex;flex-direction:column;gap:10px}
.msg{border:1px solid var(--line);background:rgba(255,255,255,.06);border-radius:14px;padding:10px}
.msgMeta{font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:10px;margin-bottom:6px}
.composer{display:flex;gap:10px;padding:12px;border-top:1px solid var(--line)}
.input{border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);border-radius:12px;padding:10px}
.input--composer{flex:1}
.input--rail{flex:1}
.card{margin:12px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.05);overflow:hidden}
.cardHead{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--line)}
.cardTitle{font-weight:800}
.todoAdd{display:flex;gap:8px;padding:12px}
.todoList{padding:0 12px 12px 12px;display:flex;flex-direction:column;gap:8px}
.todoItem{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);border-radius:12px;padding:8px 10px;background:rgba(0,0,0,.08)}