:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --ink: #141821;
  --muted: #5b6270;
  --faint: #8b919d;
  --line: #e5e7eb;
  --line-2: #eef0f3;
  --brand: #182033;
  --brand-2: #263150;
  --data: #2f6fd6;
  --data-soft: #e8effb;
  --data-2: #d9822b;
  --danger: #b3261e;
  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: 'Pretendard Variable', Pretendard, -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif; font-size: 15px; line-height: 1.5; letter-spacing: -0.01em; font-feature-settings: 'tnum'; }
body.locked { overflow: hidden; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }

.sample-bar { background: #10131a; color: #cfd4dd; font-size: 12px; text-align: center; padding: 7px 16px; }

.top { max-width: 1180px; margin: 0 auto; padding: 22px 24px 8px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand b { display: block; font-size: 17px; letter-spacing: -0.02em; }
.brand small { color: var(--muted); font-size: 13px; }
.logo { width: 40px; height: 40px; border-radius: 11px; background: var(--brand); display: flex; align-items: flex-end; justify-content: center; gap: 3px; padding: 9px; flex: none; }
.logo i { width: 5px; border-radius: 2px; background: #fff; }
.logo i:nth-child(1) { height: 9px; } .logo i:nth-child(2) { height: 15px; } .logo i:nth-child(3) { height: 21px; background: #6d9bff; }
.tag-sample { font-size: 11px; font-weight: 600; color: #7a5d22; background: #f4ecdb; padding: 2px 8px; border-radius: 99px; margin-left: 4px; }
.top-actions { display: flex; align-items: center; gap: 8px; }

.month-pick { display: flex; align-items: center; gap: 4px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 3px; }
.month-pick select { border: 0; background: none; font-weight: 700; padding: 6px 6px; border-radius: 8px; cursor: pointer; appearance: none; -webkit-appearance: none; text-align: center; }
.month-pick select:focus-visible { outline: 2px solid var(--data); }
.icon-btn { width: 34px; height: 34px; border-radius: 9px; border: 0; background: none; font-size: 20px; line-height: 1; color: var(--muted); display: grid; place-items: center; }
.icon-btn:hover:not(:disabled) { background: var(--line-2); color: var(--ink); }
.icon-btn:disabled { opacity: .3; cursor: default; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 42px; padding: 0 18px; border-radius: 12px; border: 1px solid var(--line); background: #fff; font-weight: 600; font-size: 15px; white-space: nowrap; text-decoration: none; transition: background .18s, border-color .18s, transform .15s var(--ease); }
.btn:hover { border-color: #d3d6dc; }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-2); }
.btn.small { height: 36px; padding: 0 12px; font-size: 14px; border-radius: 10px; }
.link { border: 0; background: none; padding: 6px 4px; color: var(--muted); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: #cfd2d8; }
.link.small { font-size: 13px; }
.link.danger { color: var(--danger); }

.main { max-width: 1180px; margin: 0 auto; padding: 8px 24px 64px; }
.as-of { color: var(--muted); font-size: 14px; margin: 6px 0 16px; }

/* ── 숫자 카드 ── */
.kpis { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.kpi { background: var(--surface); border-radius: 18px; padding: 20px 22px; box-shadow: 0 1px 0 var(--line); min-width: 0; }
.kpi h2 { font-size: 14px; font-weight: 600; color: var(--muted); margin: 0 0 8px; }
.kpi .big { font-size: 40px; font-weight: 750; letter-spacing: -0.035em; margin: 0; line-height: 1.1; }
.kpi .mid { font-size: 30px; font-weight: 700; letter-spacing: -0.03em; margin: 0; line-height: 1.15; }
.kpi .mid small, .kpi .big small { font-size: .5em; font-weight: 600; color: var(--muted); margin-left: 3px; letter-spacing: 0; }
.kpi .note { margin: 10px 0 0; color: var(--muted); font-size: 13.5px; }
.kpi .note b { color: var(--ink); font-weight: 650; }
.kpi.hero { background: var(--brand); color: #fff; box-shadow: none; }
.kpi.hero h2 { color: #aab3c7; }
.kpi.hero .note { color: #c3cad8; }
.kpi.hero .note b { color: #fff; }
.meter { height: 6px; border-radius: 99px; background: var(--line-2); margin-top: 12px; overflow: hidden; }
.meter i { display: block; height: 100%; width: 0; background: var(--data); border-radius: 99px; transition: width .6s var(--ease); }
.delta { font-weight: 650; }

/* ── 카드·그래프 ── */
.grid { display: grid; grid-template-columns: 2fr 1fr; gap: 14px; }
.card { background: var(--surface); border-radius: 18px; padding: 20px 22px 18px; box-shadow: 0 1px 0 var(--line); min-width: 0; }
.span-2 { grid-column: span 1; }
#card-revenue { grid-column: 1; }
#card-class { grid-column: 2; grid-row: span 2; }
#card-flow { grid-column: 1; }
#card-unpaid { grid-column: 1 / -1; }
.card-h { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 10px; }
.card-h .link { white-space: nowrap; }
.card-h h2 { font-size: 17px; margin: 0; letter-spacing: -0.02em; }
.card-h h2 span { color: var(--danger); }
.sub { color: var(--faint); font-size: 13px; margin: 2px 0 0; }
.chart-box { width: 100%; overflow: hidden; }
.chart { display: block; max-width: 100%; height: auto; }
.chart .grid { stroke: var(--line-2); stroke-width: 1; }
.chart .axis { stroke: #cfd3da; stroke-width: 1; }
.chart .tick, .chart .xl { fill: var(--faint); font-size: 11.5px; }
.chart .val { fill: var(--ink); font-size: 12px; font-weight: 650; }
.chart .mark { transition: opacity .15s; }
.chart .m-rev { fill: var(--data); }
.chart .m-rev.partial { fill: var(--data); opacity: .4; }
.chart .m-new { fill: var(--data); }
.chart .m-left { fill: var(--data-2); }
.chart .m-rev.sel { fill: var(--brand); }
.chart .hit { fill: transparent; outline: none; cursor: default; }
.chart .hit:hover, .chart .hit:focus-visible { fill: rgba(20, 24, 33, .04); }
.legend { display: flex; gap: 16px; font-size: 13px; color: var(--muted); margin: -2px 0 6px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.s-new { background: var(--data); } .s-left { background: var(--data-2); }

.table-box { overflow-x: auto; }
.table-box table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table-box th, .table-box td { padding: 7px 8px; text-align: right; border-bottom: 1px solid var(--line-2); white-space: nowrap; }
.table-box th:first-child, .table-box td:first-child { text-align: left; }
.table-box th { color: var(--muted); font-weight: 600; }

.cbars { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 18px; }
.cbars li { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; align-items: center; outline: none; border-radius: 8px; }
.cbars li:focus-visible { box-shadow: 0 0 0 2px var(--data); }
.cb-name { font-size: 14px; font-weight: 600; grid-column: 1; grid-row: 1; }
.cb-num { grid-column: 2; grid-row: 1; font-size: 13px; color: var(--muted); text-align: right; display: inline-flex; align-items: baseline; gap: 2px; }
.cb-num b { font-size: 16px; color: var(--ink); }
.cb-num em { font-style: normal; font-size: 11px; font-weight: 700; color: var(--data); background: var(--data-soft); padding: 1px 6px; border-radius: 99px; margin-left: 6px; }
.cb-track { grid-column: 1 / -1; grid-row: 2; width: 100%; position: relative; height: 10px; border-radius: 99px; }
.cb-cap { position: absolute; left: 0; top: 0; bottom: 0; background: var(--line-2); border-radius: 99px; }
.cb-fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--data); border-radius: 99px; transition: width .6s var(--ease); }

/* ── 미납 ── */
.unpaid { list-style: none; margin: 0; padding: 0; }
.unpaid li { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.6fr) auto auto; gap: 14px; align-items: center; padding: 14px 0; border-top: 1px solid var(--line-2); }
.unpaid li:first-child { border-top: 0; }
.u-who b { font-size: 15.5px; }
.u-who small { display: block; color: var(--faint); font-size: 13px; }
.u-left { font-size: 11px; font-weight: 600; color: var(--muted); background: var(--line-2); padding: 1px 7px; border-radius: 99px; margin-left: 6px; vertical-align: 2px; }
.u-months { display: flex; flex-wrap: wrap; gap: 6px; }
.u-months span { font-size: 12.5px; padding: 3px 9px; border-radius: 99px; background: #fbeceb; color: var(--danger); font-weight: 600; }
.u-amt { font-weight: 700; font-size: 16px; text-align: right; white-space: nowrap; }
.u-act { display: flex; gap: 6px; justify-content: flex-end; }
.empty-line { color: var(--muted); padding: 18px 0 8px; margin: 0; }
.empty-line b { color: var(--ink); }

.foot { color: var(--faint); font-size: 12.5px; text-align: center; margin: 28px 0 0; }

.empty-hero { background: var(--surface); border-radius: 22px; padding: 64px 24px; text-align: center; margin-top: 18px; box-shadow: 0 1px 0 var(--line); }
.empty-hero h1 { font-size: 28px; margin: 0 0 8px; letter-spacing: -0.03em; }
.empty-hero p { color: var(--muted); margin: 0 0 24px; }
.empty-actions { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }

/* ── 서랍·안내 ── */
.scrim { position: fixed; inset: 0; background: rgba(16, 19, 26, .32); z-index: 40; opacity: 0; transition: opacity .25s; }
.scrim.on { opacity: 1; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(460px, 100%); background: var(--surface); z-index: 41; transform: translateX(100%); transition: transform .38s var(--ease); display: flex; flex-direction: column; box-shadow: -12px 0 40px rgba(16, 19, 26, .08); visibility: hidden; }
.drawer.open { transform: none; visibility: visible; }
.drawer-h { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px 10px; }
.drawer-h h2 { font-size: 19px; margin: 0; }
.drawer-b { padding: 4px 20px 32px; overflow-y: auto; }
.drawer-b section { padding: 16px 0; border-top: 1px solid var(--line-2); }
.drawer-b section:first-child { border-top: 0; }
.drawer-b h3 { font-size: 15px; margin: 0 0 4px; }
.drawer-b .sub { font-size: 13.5px; color: var(--muted); margin-bottom: 12px; }
.drop { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 22px 12px; border: 1.5px dashed #cdd1d8; border-radius: 14px; cursor: pointer; text-align: center; transition: border-color .15s, background .15s; }
.drop:hover, .drop.over { border-color: var(--data); background: var(--data-soft); }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop:focus-within { outline: 2px solid var(--data); outline-offset: 2px; }
.drop span { color: var(--faint); font-size: 13px; }
.hint { font-size: 13px; color: var(--muted); margin: 10px 0 0; }
.row-btns { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.log { list-style: none; margin: 4px 0 0; padding: 0; font-size: 13px; color: var(--muted); max-height: 220px; overflow-y: auto; }
.log li { padding: 6px 0; border-top: 1px solid var(--line-2); display: flex; gap: 10px; }
.log li:first-child { border-top: 0; }
.log time { color: var(--faint); flex: none; font-variant-numeric: tabular-nums; }
.log .none { color: var(--faint); }
#undo-import:not(:empty) { margin: 4px 0 10px; }
.plan { margin-top: 14px; padding: 14px; border-radius: 14px; background: #f7f8fa; }
.plan p { margin: 0 0 6px; }
.plan .bad { color: var(--danger); font-weight: 600; }
.plan .diffs { max-height: 140px; }
.plan ul { margin: 8px 0 12px; padding-left: 18px; max-height: 180px; overflow-y: auto; font-size: 13px; color: var(--muted); }
.plan ul b { color: var(--ink); }

.guide { border: 0; border-radius: 20px; padding: 0; width: min(560px, calc(100% - 32px)); max-height: min(80vh, 720px); box-shadow: 0 20px 60px rgba(16, 19, 26, .2); }
.guide::backdrop { background: rgba(16, 19, 26, .32); }
.guide-b { padding: 0 22px 22px; overflow-y: auto; }
.guide-b h3 { font-size: 15px; margin: 18px 0 6px; }
.guide-b ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.guide-b li { margin-bottom: 6px; }
.guide-b b { color: var(--ink); }

.tip { position: fixed; z-index: 60; pointer-events: none; background: var(--brand); color: #fff; font-size: 13px; line-height: 1.45; padding: 8px 11px; border-radius: 10px; white-space: pre-line; box-shadow: 0 8px 24px rgba(16, 19, 26, .18); max-width: 240px; }
.tip b { font-weight: 700; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 70; background: var(--brand); color: #fff; padding: 12px 16px; border-radius: 14px; font-size: 14px; display: flex; gap: 14px; align-items: center; box-shadow: 0 10px 30px rgba(16, 19, 26, .2); max-width: calc(100% - 32px); }
.toast button { background: none; border: 0; color: #9fbcff; font-weight: 700; padding: 0; }

@media (max-width: 960px) {
  .kpis { grid-template-columns: 1fr 1fr; }
  .kpi.hero { grid-column: 1 / -1; }
  .grid { grid-template-columns: 1fr; }
  #card-revenue, #card-class, #card-flow, #card-unpaid { grid-column: 1; grid-row: auto; }
}
@media (max-width: 640px) {
  .top { grid-template-columns: 1fr auto; padding: 16px 16px 6px; gap: 12px; }
  .month-pick { grid-column: 1 / -1; grid-row: 2; justify-content: space-between; }
  .month-pick select { flex: 1; }
  .top-actions .link { display: none; }
  .main { padding: 6px 16px 48px; }
  .kpis { gap: 10px; }
  .kpi { padding: 16px; border-radius: 16px; }
  .kpi.rate { grid-column: 1 / -1; }
  .kpi .big { font-size: 34px; }
  .kpi .mid { font-size: 24px; }
  .card { padding: 16px; border-radius: 16px; }
  .unpaid li { grid-template-columns: 1fr auto; gap: 8px 12px; }
  .u-months { grid-column: 1 / -1; grid-row: 2; }
  .u-act { grid-column: 1 / -1; grid-row: 3; justify-content: stretch; }
  .u-act .btn { flex: 1; }
  .btn.primary { padding: 0 14px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}