:root {
  color-scheme: light;
  --bg: #f3f1ec;
  --ink: #0b1c2e;
  --muted: #5d6b7a;
  --line: #d7dde5;
  --card: #ffffff;
  --accent: #0f4c81;
  --accent-soft: #e7f0f8;
  --good: #1f7a4c;
  --warn: #9a5b12;
  --danger: #b42318;
  --bar: #1d5f99;
  --bar-soft: #9bb8d4;
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 480px at 10% -10%, #d9e7f5 0%, transparent 55%),
    linear-gradient(180deg, #eef2f6 0%, var(--bg) 42%, #ebe6df 100%);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

body {
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}

.shell {
  width: min(100%, 560px);
  margin: 0 auto;
  padding: 16px 16px 40px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.topbar h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.panel {
  background: color-mix(in srgb, var(--card) 92%, transparent);
  border: 1px solid color-mix(in srgb, var(--line) 80%, white);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(11, 28, 46, 0.06);
  backdrop-filter: blur(10px);
}

.panel h2 {
  margin: 0 0 8px;
  font-size: 20px;
}

.hint {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.hint.tight { margin-bottom: 10px; }

.auth-form label {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--muted);
}

.auth-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 16px;
  background: #fff;
  color: var(--ink);
}

.primary-btn,
.ghost-btn,
.chip,
.icon-refresh {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
}

.primary-btn {
  width: 100%;
  border-radius: 12px;
  padding: 13px 16px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.primary-btn:disabled { opacity: 0.55; }

.ghost-btn {
  padding: 8px 12px;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

.status {
  min-height: 1.2em;
  margin: 12px 0 0;
  color: var(--danger);
  font-size: 13px;
}

.hidden { display: none !important; }

.range-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.chip.active {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
  color: var(--accent);
  font-weight: 600;
}

.icon-refresh {
  margin-left: auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
}

.meta {
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--muted);
}

.kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.kpi {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 12px 10px;
}

.kpi .label {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.kpi .value {
  margin: 4px 0 0;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.kpi .sub {
  margin: 2px 0 0;
  font-size: 11px;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  margin-bottom: 12px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 15px;
}

.bars {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(28px, 1fr);
  align-items: end;
  gap: 6px;
  min-height: 120px;
  padding-top: 8px;
}

.bar-col {
  display: grid;
  grid-template-rows: 1fr auto auto;
  justify-items: center;
  gap: 4px;
  min-height: 120px;
}

.bar-col .bar {
  width: 100%;
  max-width: 28px;
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(180deg, var(--bar) 0%, var(--bar-soft) 100%);
  min-height: 2px;
  align-self: end;
}

.bar-col .n {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.bar-col .d {
  font-size: 10px;
  color: var(--muted);
}

.sub-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: 8px 6px;
  text-align: right;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.data-table th:first-child,
.data-table td:first-child {
  text-align: left;
}

.data-table th {
  color: var(--muted);
  font-weight: 500;
}

.day-filter {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  margin-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.day-filter .chip { flex: 0 0 auto; }

.store-list {
  display: grid;
  gap: 8px;
}

.store-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 12px;
  border-radius: 12px;
  background: #f7f9fb;
  border: 1px solid #e7edf3;
}

.store-row strong {
  display: block;
  font-size: 14px;
}

.store-row span {
  color: var(--muted);
  font-size: 12px;
}

.store-metrics {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
}

.store-metrics em {
  font-style: normal;
  color: var(--muted);
  font-size: 11px;
}

.empty {
  margin: 8px 0;
  color: var(--muted);
  font-size: 13px;
}

@media (min-width: 520px) {
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
}