:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #687385;
  --line: #dfe4ea;
  --accent: #1b73e8;
  --accent-dark: #1458b8;
  --danger: #b42318;
  --ok: #0f7a48;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 12px 24px;
  background: #111827;
  color: #fff;
}

.topbar a {
  color: #fff;
}

.brand {
  font-weight: 700;
}

main {
  padding: 24px;
}

h1 {
  margin: 0 0 6px;
  font-size: 24px;
}

p {
  margin: 0;
  color: var(--muted);
}

.landing,
.oauth-code {
  max-width: 560px;
  margin: 80px auto;
  padding: 32px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.code {
  margin: 24px 0;
  padding: 18px;
  background: #111827;
  color: #fff;
  border-radius: 6px;
  font: 700 28px ui-monospace, SFMono-Regular, Menlo, monospace;
  text-align: center;
}

.button,
button {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
}

.button.primary {
  display: inline-flex;
  align-items: center;
  margin-top: 20px;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.page-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.breadcrumbs {
  margin-bottom: 12px;
  color: var(--muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stats-grid div {
  padding: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.stats-grid strong {
  display: block;
  font-size: 20px;
}

.stats-grid span {
  color: var(--muted);
}

.balance-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 1fr));
  gap: 12px;
  position: relative;
  overflow: hidden;
  margin-bottom: 16px;
  padding: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.balance-summary strong {
  display: block;
  font-size: 20px;
}

.balance-summary span {
  color: var(--muted);
}

.balance-progress {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: #eef2f7;
}

.balance-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width 180ms ease;
}

.filters,
.date-form {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

input,
select {
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}

.search {
  min-width: 260px;
}

.table-wrap {
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  background: #f9fafb;
  color: #394253;
  font-weight: 650;
  cursor: pointer;
}

tfoot td {
  background: #f9fafb;
  font-weight: 700;
}

.badge {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  background: #eef2f7;
  color: var(--muted);
  font-size: 12px;
}

.badge.ok {
  background: #e9f7ef;
  color: var(--ok);
}

.link-button {
  height: auto;
  min-height: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
}

.balance {
  margin-left: 8px;
  color: var(--muted);
}

.balance.negative {
  color: var(--danger);
}

.notice {
  padding: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.notice.error {
  border-color: #f4c7c3;
  color: var(--danger);
}

@media (max-width: 760px) {
  .topbar,
  .page-head {
    display: block;
  }

  main {
    padding: 16px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .balance-summary {
    grid-template-columns: 1fr;
  }
}