:root{
  --bg:#f5f7fb;
  --bg-elev:#ffffff;
  --bg-soft:#f1f4fa;
  --line:#e3e8f1;
  --line-strong:#cdd5e3;
  --text:#1f2a44;
  --muted:#6b7592;
  --primary:#3b6dff;
  --primary-2:#5a86ff;
  --accent:#06b6d4;
  --good:#10b981;
  --danger:#ef4444;
  --warn:#f59e0b;
  --shadow:0 8px 28px rgba(31,42,68,.08);
  --shadow-lg:0 18px 48px rgba(31,42,68,.14);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}

/* topbar */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 28px;border-bottom:1px solid var(--line);
  background:#ffffff;
  position:sticky;top:0;z-index:30;
}
.brand{display:flex;gap:14px;align-items:center;flex-shrink:0}
.nav{display:flex;gap:6px;margin-left:24px;flex:1}
.nav-link{
  text-decoration:none;color:var(--muted);padding:8px 14px;border-radius:8px;
  font-size:13px;font-weight:600;transition:all .15s ease;
}
.nav-link:hover{background:var(--bg-soft);color:var(--text)}
.nav-link.active{background:#eef3ff;color:var(--primary)}
#sync-status{
  margin-left:auto;font-size:12px;padding:6px 10px;border-radius:8px;
  background:#eef2fb;color:var(--muted);font-weight:500;
}
#sync-status[data-kind="ok"]{background:#dcfce7;color:#166534}
#sync-status[data-kind="loading"]{background:#dbeafe;color:#1e40af}
#sync-status[data-kind="pending"]{background:#fef3c7;color:#92400e}
#sync-status[data-kind="error"]{background:#fee2e2;color:#991b1b}
#sync-status[data-kind="off"]{background:#f3f4f6;color:#6b7280}
.page[hidden]{display:none !important}
.logo{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:22px;
  box-shadow:0 8px 22px rgba(59,109,255,.32);
}
.title{font-weight:700;font-size:18px;letter-spacing:-.2px;color:var(--text)}
.subtitle{font-size:12px;color:var(--muted);margin-top:2px}
.top-actions{display:flex;gap:10px;align-items:center}

/* buttons */
.btn{
  appearance:none;border:1px solid var(--line);background:#fff;color:var(--text);
  padding:10px 16px;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;
  transition:transform .08s ease,background .15s ease,border-color .15s ease,box-shadow .15s ease;
  display:inline-flex;align-items:center;gap:6px;
}
.btn:hover{background:var(--bg-soft);border-color:var(--line-strong)}
.btn:active{transform:translateY(1px)}
.btn.primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  border-color:transparent;color:#fff;
  box-shadow:0 6px 18px rgba(59,109,255,.28);
}
.btn.primary:hover{filter:brightness(1.04)}
.btn.ghost{background:transparent}
.btn.danger{color:var(--danger);border-color:rgba(239,68,68,.35)}
.btn.danger:hover{background:rgba(239,68,68,.08)}

/* stats */
.stats{
  display:grid;grid-template-columns:repeat(7,1fr);gap:12px;
  padding:18px 28px;
}
@media (max-width:1100px){.stats{grid-template-columns:repeat(3,1fr)}}
.stat-card{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;box-shadow:var(--shadow);
}
.stat-card.highlight{
  background:linear-gradient(135deg,#eef3ff,#e8fbff);
  border-color:#cfd9ff;
}
.stat-label{font-size:12px;color:var(--muted);margin-bottom:6px}
.stat-value{font-size:22px;font-weight:800;letter-spacing:-.5px;color:var(--text)}

/* filters */
.filters{padding:6px 28px 18px}
.filter-row{display:flex;gap:10px;flex-wrap:wrap}
.input{
  flex:1;min-width:160px;padding:11px 14px;border-radius:10px;
  background:#fff;border:1px solid var(--line);color:var(--text);
  font-size:13px;outline:none;
  transition:border-color .15s ease,box-shadow .15s ease;
}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,109,255,.15)}
#q{flex:2;min-width:260px}

/* table */
.table-wrap{padding:0 28px 28px}
.table-scroll{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);
  overflow:auto;max-height:calc(100vh - 360px);min-height:300px;
  box-shadow:var(--shadow);
}
table{border-collapse:separate;border-spacing:0;width:100%;font-size:12.5px}
thead th{
  position:sticky;top:0;z-index:5;
  background:#eef2fb;color:#1f2a44;font-weight:700;
  padding:10px 12px;text-align:center;
  border-bottom:1px solid var(--line-strong);
  border-right:1px solid var(--line);
  white-space:nowrap;
}
thead th:last-child{border-right:none}
tfoot td{
  position:sticky;bottom:0;
  background:#f3f6fc;color:var(--text);font-weight:700;
  padding:10px 12px;text-align:center;
  border-top:1px solid var(--line-strong);
  border-right:1px solid var(--line);
}
tfoot td:last-child{border-right:none}
tbody td{
  padding:9px 12px;text-align:center;color:var(--text);
  border-bottom:1px solid var(--line);
  border-right:1px solid var(--line);
  white-space:nowrap;
  background:#fff;
}
tbody td:last-child{border-right:none}
tbody tr:nth-child(even) td{background:#fafbfe}
tbody tr:hover td{background:#eef3ff}
.num{font-variant-numeric:tabular-nums}
.pos{color:#0f7a4e}
.zero{color:var(--muted)}
.row-actions{display:inline-flex;gap:6px}
.icon-btn{
  background:#fff;border:1px solid var(--line);border-radius:8px;
  padding:5px 9px;color:var(--text);cursor:pointer;font-size:12px;
}
.icon-btn:hover{background:var(--bg-soft);border-color:var(--line-strong)}
.icon-btn.danger{color:var(--danger);border-color:rgba(239,68,68,.35)}
.icon-btn.danger:hover{background:rgba(239,68,68,.08)}

/* group header for months */
th.gh{background:#e6ecfb}
th.gh-fee{color:#0f7a4e}
th.gh-incfc{color:#a16207}
th.gh-incmgr{color:#9333ea}

/* pager */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;padding:14px}
#p-info{color:var(--muted);font-size:13px;min-width:70px;text-align:center}

/* modal */
.modal-back{
  position:fixed;inset:0;background:rgba(15,23,42,.45);backdrop-filter:blur(3px);
  display:flex;align-items:center;justify-content:center;z-index:50;
}
.modal-back[hidden]{display:none !important}
.modal{
  width:min(880px,95vw);max-height:90vh;overflow:auto;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-lg);
}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:17px;color:var(--text)}
.x{background:none;border:none;color:var(--muted);font-size:26px;cursor:pointer;line-height:1}
.x:hover{color:var(--text)}
.modal-body{padding:18px 22px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 22px;border-top:1px solid var(--line)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid2 label,.months-row label{display:flex;flex-direction:column;font-size:12px;color:var(--muted);gap:6px}
.grid2 input,.months-row input{
  background:#fff;border:1px solid var(--line);color:var(--text);
  padding:10px 12px;border-radius:10px;font-size:13px;outline:none;
  transition:border-color .15s ease,box-shadow .15s ease;
}
.grid2 input:focus,.months-row input:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,109,255,.15);
}
.months-section{margin-top:18px}
.months-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.months-head h4{margin:0;font-size:14px;color:var(--text)}
.months-grid{display:flex;flex-direction:column;gap:6px}
.months-hd,.months-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr 36px;gap:8px;align-items:center}
.months-hd{font-size:12px;color:var(--muted);padding:0 4px}
.months-row input{padding:8px 10px}
.months-row .x{font-size:18px;border:1px solid var(--line);border-radius:8px;background:#fff;height:34px}
.months-row .x:hover{background:var(--bg-soft)}

/* toast */
#toast{
  position:fixed;left:50%;bottom:24px;transform:translateX(-50%);
  background:#1f2a44;border:1px solid #1f2a44;color:#fff;
  padding:10px 16px;border-radius:10px;box-shadow:var(--shadow-lg);
  opacity:0;transition:opacity .2s ease,transform .2s ease;
  z-index:80;font-size:13px;pointer-events:none;
}
#toast.show{opacity:1;transform:translateX(-50%) translateY(-4px)}

/* stats page */
.stats-page{padding:18px 28px 40px}
.kpis{display:grid;grid-template-columns:repeat(7,1fr);gap:12px;margin-bottom:18px}
@media (max-width:1100px){.kpis{grid-template-columns:repeat(3,1fr)}}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:1100px){.card-grid{grid-template-columns:1fr}}
.card-box{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;box-shadow:var(--shadow);min-height:280px;
}
.card-box.wide{grid-column:span 3}
@media (max-width:1100px){.card-box.wide{grid-column:span 1}}
.card-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px}
.card-head h3{margin:0;font-size:15px;color:var(--text)}
.card-head .muted{font-size:12px;color:var(--muted)}

/* svg charts */
.svg-chart{width:100%;height:auto;display:block;font-family:inherit}
.bar-row{display:grid;grid-template-columns:140px 1fr 110px;gap:10px;align-items:center;font-size:12.5px;margin-bottom:6px}
.bar-row .lbl{color:var(--text);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-row .val{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}
.bar-track{position:relative;height:20px;background:#eef2fb;border-radius:6px;overflow:hidden;display:flex}
.bar-seg{height:100%}
.bar-seg.fee{background:linear-gradient(90deg,#10b981,#34d399)}
.bar-seg.fc{background:linear-gradient(90deg,#f59e0b,#fbbf24)}
.bar-seg.mg{background:linear-gradient(90deg,#9333ea,#c084fc)}
.legend{display:flex;gap:12px;font-size:12px;color:var(--muted);margin:0 0 12px}
.legend span::before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:middle}
.legend .l-fee::before{background:#10b981}
.legend .l-fc::before{background:#f59e0b}
.legend .l-mg::before{background:#9333ea}

/* matrix heatmap */
.heat{overflow:auto;max-height:480px}
.heat table{border-collapse:collapse;font-size:11.5px;min-width:600px}
.heat th,.heat td{padding:6px 8px;text-align:center;border:1px solid var(--line)}
.heat thead th{background:#eef2fb;position:sticky;top:0;z-index:2}
.heat tbody th{background:#f7f9fd;text-align:left;position:sticky;left:0}
.heat td{font-variant-numeric:tabular-nums}

/* top-list */
.top-list{font-size:12.5px}
.top-list .row{display:grid;grid-template-columns:30px 1.4fr 1fr 1fr 1fr 1fr 1fr;gap:8px;padding:6px 4px;border-bottom:1px solid var(--line)}
.top-list .head{font-weight:700;color:var(--muted);font-size:11.5px;background:#eef2fb;border-radius:8px;padding:8px 4px}
.top-list .num{text-align:right;font-variant-numeric:tabular-nums}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#cdd5e3;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:#aab5cc}
::-webkit-scrollbar-track{background:transparent}