:root{
  --bg:#0f172a; --card:#1e293b; --card2:#162033; --txt:#e2e8f0; --muted:#94a3b8;
  --line:#334155; --green:#16a34a; --red:#dc2626; --blue:#2563eb; --accent:#38bdf8;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--txt);font-size:15px;line-height:1.4}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--muted)}

/* topbar */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 20px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{font-weight:700;font-size:17px}
.topbar-right{display:flex;align-items:center;gap:14px}
.yearsel select{background:var(--card2);color:var(--txt);border:1px solid var(--line);
  border-radius:8px;padding:6px 10px;font-size:14px}
.logout,.back{color:var(--muted);font-size:14px}

main{max-width:1180px;margin:0 auto;padding:20px}

/* KPI */
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.kpi-label{font-size:13px;color:var(--muted);margin-bottom:6px}
.kpi-val{font-size:24px;font-weight:700;letter-spacing:-.5px}
.kpi-val .cur{font-size:13px;color:var(--muted);margin-left:6px;font-weight:500}
.kpi-income{border-left:4px solid var(--green)}
.kpi-expense{border-left:4px solid var(--red)}
.kpi-profit{border-left:4px solid var(--blue)}
.kpi-loss{border-left:4px solid #f59e0b}
.kpi-margin{border-left:4px solid var(--accent)}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:18px}
.card h2{margin:0 0 14px;font-size:15px;font-weight:600}
.card h1{margin:0 0 6px;font-size:20px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}

/* tables */
.tbl-scroll{overflow-x:auto}
.acc-tbl{width:100%;border-collapse:collapse;font-size:13px;white-space:nowrap}
.acc-tbl th,.acc-tbl td{padding:8px 10px;text-align:right;border-bottom:1px solid var(--line)}
.acc-tbl th{color:var(--muted);font-weight:600;font-size:12px;position:sticky;top:0;background:var(--card)}
.acc-tbl th.l,.acc-tbl td.l{text-align:left}
.acc-tbl td.tot,.acc-tbl th.tot{font-weight:700;border-left:1px solid var(--line)}
.acc-tbl tfoot td{font-weight:700;border-top:2px solid var(--line);color:var(--txt)}
.acc-tbl a.cell{color:var(--txt)}
.acc-tbl tbody tr:hover{background:rgba(56,189,248,.06)}
.acc-tbl.detail td{font-size:13px}

/* login */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.login-card{background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:30px 26px;width:100%;max-width:360px;display:flex;flex-direction:column;gap:14px}
.login-logo{font-size:40px;text-align:center}
.login-card h1{margin:0;text-align:center;font-size:22px}
.login-sub{margin:0;text-align:center;color:var(--muted);font-size:13px}
.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.login-card input[type=email],.login-card input[type=password],.login-card input[type=text]{
  background:var(--card2);border:1px solid var(--line);border-radius:10px;padding:11px 12px;
  color:var(--txt);font-size:15px;width:100%}
.pw-wrap{position:relative;display:flex}
.pw-wrap input{flex:1;padding-right:44px}
.eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;
  cursor:pointer;font-size:18px;padding:4px}
.remember{flex-direction:row!important;align-items:center;gap:8px;color:var(--txt)!important}
.remember input{width:auto}
.btn-primary{background:var(--blue);color:#fff;border:none;border-radius:10px;padding:12px;
  font-size:15px;font-weight:600;cursor:pointer;margin-top:4px}
.btn-primary:hover{filter:brightness(1.1)}
.login-error{background:rgba(220,38,38,.15);border:1px solid var(--red);color:#fca5a5;
  border-radius:10px;padding:10px 12px;font-size:13px;text-align:center}

@media(max-width:760px){
  .kpi-row{grid-template-columns:repeat(2,1fr)}
  .grid2{grid-template-columns:1fr}
  .kpi-val{font-size:20px}
}