:root{
  --ink:#16202E; --ink-soft:#1F2C3D; --ink-line:#2C3B4E;
  --text:#1B2734; --muted:#66788C; --faint:#94A3B4;
  --line:#DCE3EA; --line-soft:#EDF1F5; --canvas:#F4F6F8; --surface:#FFFFFF;
  --teal:#0F6E63; --teal-soft:#E2F0ED;
  --blue:#2C5FA8; --blue-soft:#E8EFF8;
  --violet:#5A4A9E; --violet-soft:#EDEAF7;
  --amber:#A96E12; --amber-soft:#FAEFDC;
  --rose:#B03A4B; --rose-soft:#FAE9EB;
  --slate:#71829A; --slate-soft:#EDF0F4;
  --font:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);background:var(--canvas);color:var(--text);font-size:14px;-webkit-font-smoothing:antialiased}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums}
.mono{font-family:var(--mono)}
a{color:var(--teal)}

/* layout */
.app{display:flex;min-height:100vh}
.side{width:224px;flex-shrink:0;background:var(--ink);position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.side-brand{display:flex;align-items:center;gap:10px;padding:16px}
.mark{width:26px;height:26px;border-radius:5px;background:var(--teal);color:#fff;font-weight:700;font-size:13px;display:inline-flex;align-items:center;justify-content:center}
.side-name{color:#fff;font-size:14px;font-weight:600;letter-spacing:-.2px;line-height:1.25}
.nav{flex:1;overflow-y:auto;padding:8px 10px}
.nav-group{font-size:11px;color:#63798F;margin:20px 0 6px;padding-left:10px}
.nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:none;background:transparent;color:#8FA6BC;font-size:13px;border-radius:6px;cursor:pointer;text-align:left;margin-bottom:2px}
.nav-item:hover{background:#1B2739;color:#C9D8E5}
.nav-item.on{background:var(--ink-soft);color:#fff;font-weight:500}
.nav-item .pill{margin-left:auto;background:var(--amber);color:#fff;font-size:10.5px;font-weight:600;border-radius:99px;padding:1px 6px}
.side-foot{border-top:1px solid var(--ink-line);padding:12px 12px}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.wrap{padding:22px 24px;max-width:1400px;width:100%}
.topbar{display:none;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--ink)}

/* type */
h1{font-size:21px;font-weight:600;letter-spacing:-.4px;margin:0}
h2{font-size:16px;font-weight:600;letter-spacing:-.2px;margin:0}
h3{font-size:13.5px;font-weight:600;margin:0}
.sub{font-size:13px;color:var(--muted);margin:3px 0 0}
.head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px}
.row{display:flex;align-items:center;gap:8px}
.stack{display:flex;flex-direction:column;gap:16px}
.spread{display:flex;align-items:center;justify-content:space-between;gap:12px}

/* panel */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:9px;overflow:hidden}
.panel-h{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 16px;border-bottom:1px solid var(--line-soft)}
.panel-b{padding:16px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.span2{grid-column:span 2}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:6px;font-size:13.5px;font-weight:500;cursor:pointer;border:1px solid transparent;background:var(--teal);color:#fff;white-space:nowrap}
.btn:hover{background:#0C5D53}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn.ghost:hover{background:var(--canvas)}
.btn.quiet{background:transparent;color:var(--muted);border-color:transparent}
.btn.quiet:hover{color:var(--text)}
.btn.danger{background:var(--surface);color:var(--rose);border-color:var(--line)}
.btn.danger:hover{background:var(--rose-soft)}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn.lg{padding:11px 18px}
.btn.full{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn[disabled]:hover{background:var(--teal)}
.btn.ghost[disabled]:hover,.btn.danger[disabled]:hover{background:transparent}
.ibtn{border:none;background:transparent;color:var(--faint);cursor:pointer;padding:5px;border-radius:5px;line-height:0}
.ibtn:hover{background:var(--canvas);color:var(--text)}
.ibtn.dn{color:var(--rose)}
.ibtn[disabled]{color:var(--line);cursor:not-allowed}
.ibtn[disabled]:hover{background:transparent}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.seg button{padding:6px 13px;border:none;background:var(--surface);color:var(--muted);font-size:12.5px;font-weight:500;cursor:pointer;border-left:1px solid var(--line)}
.seg button:first-child{border-left:none}
.seg button.on{background:var(--ink);color:#fff}

/* form */
label.fld{display:block}
.fld > span.lbl{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-bottom:5px}
.hint{display:block;font-size:11.5px;color:var(--faint);margin-top:4px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],select,textarea{
  width:100%;padding:8px 10px;border-radius:6px;border:1px solid var(--line);font-size:13.5px;
  font-family:var(--font);color:var(--text);background:var(--surface);outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,110,99,.1)}
textarea{resize:vertical;min-height:70px}
input[type=range]{accent-color:var(--teal);width:100%}
input[type=checkbox]{accent-color:var(--teal);width:15px;height:15px}
.search{position:relative;max-width:320px;width:100%}
.search input{padding-left:30px}
.search svg{position:absolute;left:9px;top:9px;color:var(--faint)}

/* table */
table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:11.5px;font-weight:600;color:var(--faint);padding:9px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
td{font-size:13px;color:var(--muted);padding:10px 12px;border-bottom:1px solid var(--line-soft);vertical-align:top}
td.s{color:var(--text);font-weight:500}
th.r,td.r{text-align:right}
tr.clickable{cursor:pointer}
tr.clickable:hover td{background:var(--canvas)}
.scroll{overflow-x:auto}

/* bits */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:4px;padding:2px 8px;font-size:11.5px;font-weight:600}
.dot{width:5px;height:5px;border-radius:99px;display:inline-block}
.av{display:inline-flex;align-items:center;justify-content:center;border-radius:99px;color:#fff;font-weight:600;flex-shrink:0}
.bar{border-radius:99px;overflow:hidden;background:var(--line-soft);display:inline-block}
.bar > span{display:block;height:100%}
.empty{text-align:center;padding:56px 20px}
.empty p.t{font-size:14px;font-weight:600;color:var(--text);margin:8px 0 4px}
.empty p.b{font-size:13px;color:var(--muted);margin:0 auto;max-width:340px}

/* dashboard */
.hero{background:var(--ink);border-radius:9px;padding:20px}
.ribbon{display:flex;height:10px;border-radius:99px;overflow:hidden;background:var(--ink-line);margin-top:20px}
.ribbon span{display:block}
.strip{display:grid;grid-template-columns:repeat(5,1fr);background:var(--surface);border:1px solid var(--line);border-radius:9px;overflow:hidden}
.strip > div{padding:14px 16px;border-left:1px solid var(--line-soft)}
.strip > div:first-child{border-left:none}
.strip .k{font-size:12px;color:var(--faint);margin:0}
.strip .v{font-size:20px;font-weight:600;letter-spacing:-.4px;margin:3px 0 0;color:var(--text)}
.strip .s{font-size:11.5px;color:var(--faint);margin:1px 0 0}

/* kanban */
.board{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px}
.col{flex:1;min-width:224px;background:var(--surface);border:1px solid var(--line);border-radius:9px;display:flex;flex-direction:column}
.col.over{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,110,99,.09)}
.col-h{padding:10px 12px;border-bottom:1px solid var(--line-soft)}
.col-b{padding:8px;display:flex;flex-direction:column;gap:8px;min-height:120px}
.card{background:var(--canvas);border:1px solid var(--line);border-radius:7px;padding:10px;cursor:pointer}
.card:hover{border-color:#C6D1DC}
.card[draggable=true]{cursor:grab}
.drop-hint{font-size:12px;color:var(--faint);text-align:center;padding:20px 6px;margin:0}

/* modal / drawer */
.veil{position:fixed;inset:0;background:rgba(22,32,46,.45);z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:32px 16px;overflow-y:auto}
.modal{background:var(--surface);border-radius:10px;width:100%;max-width:520px;margin:auto;box-shadow:0 24px 60px rgba(22,32,46,.24)}
.modal.wide{max-width:760px}
.modal-h{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:16px 20px;border-bottom:1px solid var(--line-soft)}
.modal-b{padding:18px 20px}
.modal-f{display:flex;justify-content:flex-end;gap:8px;padding:13px 20px;border-top:1px solid var(--line-soft);background:var(--canvas);border-radius:0 0 10px 10px}
.veil.right{align-items:stretch;justify-content:flex-end;padding:0}
.drawer{background:var(--surface);width:100%;max-width:440px;height:100vh;overflow-y:auto;border-left:1px solid var(--line)}
.drawer-h{position:sticky;top:0;background:var(--surface);border-bottom:1px solid var(--line-soft);padding:16px 20px;z-index:2}
.kv{border:1px solid var(--line);border-radius:8px;overflow:hidden}
.kv > div{display:flex;justify-content:space-between;gap:12px;padding:9px 12px;border-top:1px solid var(--line-soft);font-size:12.5px}
.kv > div:first-child{border-top:none}
.kv .k{color:var(--faint)}
.kv .v{color:var(--text);font-weight:500;text-align:right}
.chip{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:5px;padding:5px 10px;font-size:12px;font-weight:500;cursor:pointer}
.chip[disabled]{opacity:.5;cursor:not-allowed}

/* toast */
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;
  font-size:13px;padding:10px 16px;border-radius:7px;display:flex;align-items:center;gap:8px;z-index:80;
  box-shadow:0 8px 24px rgba(22,32,46,.3)}
.toast.warn{background:var(--rose)}

/* signin */
.signin{display:flex;min-height:100vh}
.signin .left{width:41%;background:var(--ink);padding:56px 48px;display:flex;flex-direction:column;justify-content:space-between}
.signin .right{flex:1;display:flex;align-items:center;justify-content:center;padding:48px 24px}
.signin h1{color:#fff;font-size:34px;line-height:1.15;letter-spacing:-.9px;margin:40px 0 0;max-width:380px}
.signin .lede{color:#93A9BE;font-size:14.5px;line-height:1.6;margin:16px 0 0;max-width:380px}
.demo{border:1px solid var(--line);border-radius:8px;overflow:hidden}
.demo button{display:flex;align-items:center;gap:10px;width:100%;padding:8px 12px;background:var(--surface);border:none;border-top:1px solid var(--line-soft);cursor:pointer;text-align:left}
.demo button:first-child{border-top:none}
.demo button:hover{background:var(--canvas)}
.alert{display:flex;gap:8px;align-items:flex-start;border-radius:6px;padding:9px 12px;font-size:12.5px}

@media (max-width:1023px){
  .side{display:none}
  .topbar{display:flex}
  .wrap{padding:16px}
  .grid2,.grid4{grid-template-columns:1fr}
  .strip{grid-template-columns:repeat(2,1fr)}
  .strip > div{border-left:none;border-top:1px solid var(--line-soft)}
  .signin{flex-direction:column}
  .signin .left{width:100%;padding:32px 24px}
  .signin h1{font-size:27px;margin-top:28px}
  .f2{grid-template-columns:1fr}
  .span2{grid-column:span 1}
  .drawer{max-width:100%}
}
@media (max-width:560px){ .grid3{grid-template-columns:1fr} }