:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --ink: #1d2433;
  --muted: #5b6474;
  --line: #e2e5ea;
  --accent: #2563eb;
  --accent-soft: #dbe6fd;
  --lead: #e46a2e;
  --up: #15803d;
  --down: #c2410c;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101318;
    --surface: #181c23;
    --ink: #e6e9ef;
    --muted: #9aa3b2;
    --line: #2a303a;
    --accent: #6d9bff;
    --accent-soft: #23314f;
    --lead: #ff9a62;
    --up: #4ade80;
    --down: #fb923c;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}
h1 { font-size: 1.15rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 12px; }
.muted { color: var(--muted); font-size: .85rem; margin: 0 0 12px; }
[hidden] { display: none !important; }

.top { background: var(--surface); border-bottom: 1px solid var(--line); }
.top__inner { max-width: 1120px; margin: 0 auto; padding: 14px 16px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.top__meta { margin: 2px 0 0; color: var(--muted); font-size: .8rem; }

.app, .login { max-width: 1120px; margin: 0 auto; padding: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; }
.card__head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.card__head h2 { margin: 0; }

.btn { background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer; }
.btn--small { padding: 6px 12px; font-size: .85rem; }
.link-btn { background: none; border: 0; color: var(--muted); font: inherit; font-size: .85rem; cursor: pointer; text-decoration: underline; }
select, input { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; }

.login__card { max-width: 380px; margin: 48px auto; display: flex; flex-direction: column; gap: 8px; }
.login__card label { font-size: .85rem; font-weight: 600; }
.error { color: var(--down); font-size: .85rem; margin: 4px 0 0; }

.controls { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: flex-end; }
.control { display: flex; flex-direction: column; gap: 4px; }
.control label { font-size: .78rem; color: var(--muted); font-weight: 600; }
.control--dates { flex-direction: row; align-items: center; flex-wrap: wrap; gap: 6px; }
.controls__note { flex-basis: 100%; margin: 0; color: var(--muted); font-size: .8rem; }
.status { min-height: 1.4em; margin: 0 0 8px; color: var(--muted); font-size: .85rem; }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { background: none; border: 0; padding: 6px 12px; font: inherit; font-size: .85rem; color: var(--muted); cursor: pointer; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--accent-soft); color: var(--ink); font-weight: 600; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; }
.kpi__label { font-size: .8rem; color: var(--muted); }
.kpi__value { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1.3; }
.kpi__delta { font-size: .8rem; color: var(--muted); }
.up { color: var(--up); }
.down { color: var(--down); }

.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.table th, .table td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.table th:first-child, .table td:first-child { text-align: left; white-space: normal; }
.table th { font-size: .78rem; color: var(--muted); font-weight: 600; }
.table td .sub { display: block; font-size: .75rem; color: var(--muted); }
.table tr.total td { font-weight: 700; }
.bar { display: block; height: 4px; background: var(--accent-soft); border-radius: 2px; margin-top: 4px; }
.bar > span { display: block; height: 100%; background: var(--accent); border-radius: 2px; }
.empty { color: var(--muted); text-align: center !important; padding: 20px !important; }

.chart { position: relative; height: 300px; }

.funnel { display: grid; gap: 10px; margin-bottom: 16px; }
.funnel__row { display: grid; grid-template-columns: 7.5em 1fr 9em; gap: 10px; align-items: center; font-size: .88rem; }
.funnel__track { background: var(--accent-soft); border-radius: 6px; height: 26px; overflow: hidden; }
.funnel__fill { background: var(--accent); height: 100%; border-radius: 6px; min-width: 2px; }
.funnel__num { text-align: right; font-variant-numeric: tabular-nums; }
.funnel__num .sub { display: block; font-size: .75rem; color: var(--muted); }

.foot { padding: 4px 2px 24px; }

@media (max-width: 600px) {
  .funnel__row { grid-template-columns: 6em 1fr 7em; }
  .kpi__value { font-size: 1.35rem; }
}