:root{
  --bg:#f3f5f9;--panel:#fff;--line:#e3e7ee;--text:#1a2233;--muted:#6b7686;--accent:#1f5eff;--accent-soft:#e8eeff;
  --ok:#1f9d55;--ok-soft:#e3f5ea;--warn:#d98b00;--warn-soft:#fff3d6;--bad:#d64545;--bad-soft:#fde5e5;--info:#5b6cff;--info-soft:#e9ebff;--gray-soft:#eef1f5;
  --radius:12px;--shadow:0 1px 2px rgba(20,30,60,.06),0 4px 16px rgba(20,30,60,.06);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--accent);text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3{margin:0;font-weight:650}
h1{font-size:22px}h2{font-size:17px}h3{font-size:15px}
.muted{color:var(--muted)}.small{font-size:12px}.bold{font-weight:600}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.grow{flex:1}
.hidden{display:none!important}

/* layout */
#app{display:flex;min-height:100vh}
.sidebar{width:232px;background:#111827;color:#cbd5e1;display:flex;flex-direction:column;padding:16px 12px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px 18px;color:#fff;font-weight:700;font-size:15px}
.brand .logo{width:30px;height:30px;border-radius:8px;background:var(--accent);display:grid;place-items:center}
.nav a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;color:#cbd5e1;font-weight:500}
.nav a:hover{background:#1f2937;color:#fff}
.nav a.active{background:var(--accent);color:#fff}
.nav svg{width:18px;height:18px;flex:none}
.nav .sep{height:1px;background:#273246;margin:10px 6px}
.userbox{margin-top:auto;padding:10px;border-top:1px solid #273246;font-size:12px}
.userbox .nm{color:#fff;font-weight:600;font-size:13px}
.userbox button{margin-top:8px;width:100%;background:#1f2937;border-color:#374151;color:#e5e7eb;justify-content:center}
.main{flex:1;min-width:0;padding:22px 28px 60px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.topbar .sub{color:var(--muted);margin-top:2px}

/* cards & panels */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(4,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:1100px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr}}
.stat .v{font-size:26px;font-weight:700;margin-top:4px}
.stat .l{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}

/* buttons/inputs */
.btn{border:1px solid var(--line);background:#fff;border-radius:9px;padding:7px 12px;cursor:pointer;font-weight:500;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover{background:#f6f8fc}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:#174ddb}
.btn.danger{color:var(--bad);border-color:#f3c5c5}
.btn.sm{padding:4px 9px;font-size:12px;border-radius:7px}
.btn.ghost{border-color:transparent;background:transparent}
input[type=text],input[type=date],input[type=time],input[type=number],input[type=password],select,textarea{border:1px solid var(--line);border-radius:9px;padding:7px 10px;background:#fff;width:100%}
textarea{min-height:70px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}
label.f{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;font-weight:500}
.field{margin-bottom:12px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.form-grid .span2{grid-column:span 2}
select.inline{width:auto;padding:3px 24px 3px 8px;font-size:12px;border-radius:999px}

/* tags / status */
.tag{display:inline-flex;align-items:center;gap:4px;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;background:var(--gray-soft);color:#3b4455}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.warn{background:var(--warn-soft);color:#9a6300}
.tag.bad{background:var(--bad-soft);color:var(--bad)}
.tag.info{background:var(--info-soft);color:#3b49d1}
.tag.accent{background:var(--accent-soft);color:var(--accent)}
.avatar{width:26px;height:26px;border-radius:50%;display:inline-grid;place-items:center;font-size:11px;font-weight:700;color:#fff;background:#8a93a6;flex:none}
.avatars{display:inline-flex}.avatars .avatar{margin-left:-6px;border:2px solid #fff}.avatars .avatar:first-child{margin-left:0}
.progress{height:6px;background:var(--gray-soft);border-radius:4px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--accent)}

/* table */
table.t{width:100%;border-collapse:collapse}
.t th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:8px 10px;border-bottom:1px solid var(--line);font-weight:600}
.t td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.t tr:last-child td{border-bottom:0}
.t tr.click:hover td{background:#f8faff;cursor:pointer}
.t td.wrap{white-space:pre-line;max-width:380px}
.overdue{color:var(--bad);font-weight:600}

/* filters */
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.filters select,.filters input{width:auto;min-width:150px}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 11px;cursor:pointer;font-size:12px}
.chip.active{background:var(--text);color:#fff;border-color:var(--text)}

/* project list */
.plist .dir{font-weight:700;margin:18px 0 8px;display:flex;align-items:center;gap:8px}
.plist .dir .tag{font-weight:600}
.pcard{display:grid;grid-template-columns:1fr 150px 160px 110px 130px;gap:12px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);cursor:pointer}
.pcard:hover{background:#f8faff}
.pcard .nm{font-weight:600}
@media(max-width:1000px){.pcard{grid-template-columns:1fr 1fr}}

/* kanban */
.kanban{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.kcol{background:#eef1f6;border-radius:var(--radius);padding:10px;min-height:120px}
.kcol h3{font-size:13px;display:flex;justify-content:space-between;margin-bottom:8px;color:#3b4455}
.kcard{background:#fff;border:1px solid var(--line);border-radius:9px;padding:9px 10px;margin-bottom:8px;cursor:pointer;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.kcard:hover{border-color:var(--accent)}
.kcard .pj{font-size:11px;color:var(--accent);font-weight:600}
.kcard .meta{display:flex;justify-content:space-between;align-items:center;margin-top:6px;font-size:11px;color:var(--muted)}

/* gantt */
.gantt{overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.gantt .hdr,.gantt .grow-row{display:grid;grid-template-columns:300px 1fr;min-width:900px}
.gantt .lbl{padding:6px 10px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;display:flex;align-items:center;gap:6px;position:sticky;left:0;background:#fff;z-index:1}
.gantt .lbl.group{font-weight:700;background:#f3f5f9}
.gantt .lbl.task{padding-left:28px;color:#3b4455;font-size:12px}
.gantt .tl{position:relative;border-bottom:1px solid var(--line);height:32px}
.gantt .hdr .tl{height:auto;display:flex;font-size:11px;color:var(--muted)}
.gantt .hdr .m{border-right:1px solid var(--line);padding:5px 6px;white-space:nowrap;overflow:hidden}
.gantt .bar{position:absolute;top:7px;height:18px;border-radius:5px;background:var(--accent);color:#fff;font-size:11px;line-height:18px;padding:0 6px;white-space:nowrap;overflow:hidden;cursor:pointer}
.gantt .bar.t{height:12px;top:10px;background:#8fa6ff;font-size:0}
.gantt .bar.done{background:var(--ok)}.gantt .bar.warn{background:var(--warn)}.gantt .bar.bad{background:var(--bad)}.gantt .bar.pale{background:#c3cad6}
.gantt .today{position:absolute;top:0;bottom:0;width:2px;background:var(--bad);z-index:2;opacity:.7}
.gantt .grid-m{position:absolute;top:0;bottom:0;border-left:1px dashed #eceff4}
.gantt .lbl .tw{cursor:pointer;width:16px;color:var(--muted)}

/* workload */
.wl{overflow:auto}
.wl table{border-collapse:separate;border-spacing:3px}
.wl th{font-size:11px;color:var(--muted);font-weight:600;padding:4px 6px;text-align:center;white-space:nowrap}
.wl th.cur{color:var(--accent)}
.wl td.p{white-space:nowrap;padding:4px 10px 4px 4px;font-weight:500;position:sticky;left:0;background:#fff}
.wl td.c{width:54px;height:34px;border-radius:6px;text-align:center;font-size:12px;font-weight:600;cursor:pointer;background:var(--gray-soft)}
.wl td.c.l1{background:#dbe7ff}.wl td.c.l2{background:#a9c3ff}.wl td.c.l3{background:#6d95ff;color:#fff}.wl td.c.l4{background:#d64545;color:#fff}
.legend{display:flex;gap:12px;font-size:12px;color:var(--muted);margin-top:10px;align-items:center}
.legend i{display:inline-block;width:16px;height:12px;border-radius:3px;margin-right:4px;vertical-align:-1px}

/* calendar */
.cal{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}
.cal .dh{font-size:11px;color:var(--muted);text-align:center;padding:4px;font-weight:600}
.cal .day{min-width:0;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:9px;min-height:104px;padding:5px;cursor:pointer}
.cal .day:hover{border-color:var(--accent)}
.cal .day.other{opacity:.5}
.cal .day.today{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.cal .dn{font-size:12px;font-weight:600;color:var(--muted);margin-bottom:3px}
.cal .ev{font-size:11px;padding:2px 5px;border-radius:5px;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:var(--accent-soft);color:var(--accent);font-weight:500}
.cal .ev.dl{background:var(--warn-soft);color:#9a6300}
.cal .ev.dl.bad{background:var(--bad-soft);color:var(--bad)}
.cal .ev.done{background:var(--ok-soft);color:var(--ok);text-decoration:line-through}
.cal .ev.sp{background:var(--info-soft);color:#3b49d1}

/* modal */
#modal-root .back{position:fixed;inset:0;background:rgba(16,24,40,.45);display:flex;justify-content:flex-end;z-index:50}
#modal-root .panel{background:#fff;width:min(760px,100%);height:100%;overflow:auto;padding:22px 26px;box-shadow:-8px 0 30px rgba(0,0,0,.15);animation:slide .18s ease-out}
#modal-root .panel.center{height:auto;max-height:92vh;width:min(560px,100%);margin:auto;border-radius:14px;animation:none}
#modal-root .back.center{align-items:center;justify-content:center}
@keyframes slide{from{transform:translateX(30px);opacity:0}to{transform:none;opacity:1}}
.mhead{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px}
.mhead h2{font-size:18px}
.x{border:0;background:transparent;font-size:22px;cursor:pointer;color:var(--muted);line-height:1}
.section{margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.section h3{margin-bottom:8px}
.check{display:flex;align-items:center;gap:8px;padding:5px 0}
.check input[type=checkbox]{width:16px;height:16px}
.check.done span{text-decoration:line-through;color:var(--muted)}
.comment{padding:8px 0;border-bottom:1px solid var(--line)}
.comment .who{font-size:12px;color:var(--muted)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:14px;overflow:auto}
.tabs button{border:0;background:transparent;padding:8px 12px;cursor:pointer;color:var(--muted);font-weight:500;border-bottom:2px solid transparent;white-space:nowrap}
.tabs button.active{color:var(--text);border-color:var(--accent)}

/* login */
.login{min-height:100vh;display:grid;place-items:center;width:100%;background:radial-gradient(1200px 600px at 20% -10%,#dbe6ff,transparent),var(--bg)}
.login .card{width:380px;padding:28px}
.login .demo{background:#f6f8fc;border-radius:9px;padding:10px 12px;font-size:12px;margin-top:14px}
.login .demo code{background:#fff;padding:1px 5px;border-radius:4px;border:1px solid var(--line)}
.err{color:var(--bad);font-size:13px;margin-top:6px}

#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#111827;color:#fff;padding:9px 16px;border-radius:9px;font-size:13px;opacity:0;pointer-events:none;transition:.2s;z-index:100}
#toast.show{opacity:1}
.empty{color:var(--muted);text-align:center;padding:30px}
.kv{display:grid;grid-template-columns:150px 1fr;gap:6px 12px;font-size:13px}
.kv b{color:var(--muted);font-weight:500}
.pre{white-space:pre-line}
.activity li{padding:6px 0;border-bottom:1px solid var(--line);font-size:13px}
ul.plain{list-style:none;margin:0;padding:0}
.mini{font-size:12px;color:var(--muted)}
@media(max-width:800px){#app{flex-direction:column}.sidebar{width:100%;height:auto;position:static}.main{padding:14px}.kanban{grid-template-columns:1fr}}