:root {
  color-scheme: light dark;

  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --text: #17191d;
  --muted: #6b7280;
  --border: #dde1e7;

  --accent: #1d5f4a;
  --accent-soft: #e2f0eb;

  --positive: #18734e;
  --negative: #a23b3b;

  --shadow: 0 8px 28px rgba(10, 18, 28, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101214;
    --surface: #181b1f;
    --surface-2: #22262b;
    --text: #f3f4f6;
    --muted: #a8afb9;
    --border: #30353c;

    --accent: #72c9aa;
    --accent-soft: #19372e;

    --positive: #72c9aa;
    --negative: #ef9696;

    --shadow: none;
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 48px;
}

.back-link {
  width: fit-content;
  margin-bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition:
    color 160ms ease,
    transform 160ms ease;
}

.back-link:hover {
  color: var(--accent);
  transform: translateX(-2px);
}

.back-link:focus-visible {
  border-radius: 6px;
  outline: 3px solid var(--accent-soft);
  outline-offset: 4px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.035em;
}

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

.muted {
  color: var(--muted);
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.status {
  color: var(--muted);
  font-size: 13px;
}

.button {
  padding: 10px 15px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 650;
}

.button.secondary {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

.button.ghost {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
}

.button:disabled,
.selector-button:disabled {
  cursor: default;
  opacity: 0.45;
}

.button:focus-visible,
.period:focus-visible,
.selector-button:focus-visible,
.month-button:focus-visible,
.year-button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 3px solid var(--accent-soft);
  outline-offset: 3px;
}

.setup-panel {
  margin-top: 24px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--accent-soft);
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 28px;
}

.setup-panel p {
  margin-bottom: 0;
  color: var(--muted);
}

.setup-controls {
  display: grid;
  gap: 8px;
}

.setup-actions {
  margin-top: 4px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.setup-controls label,
.filter-label,
.year-select-label {
  color: var(--muted);
  font-size: 13px;
}

.setup-controls input,
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface);
  color: var(--text);
}

.error {
  min-height: 20px;
  margin: 0 !important;
  color: var(--negative) !important;
}

.period-tabs {
  margin-top: 28px;
  padding-bottom: 2px;
  display: flex;
  gap: 7px;
  overflow-x: auto;
}

.period {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  white-space: nowrap;
}

.period.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.period-controls {
  margin-top: 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.period-selector-row,
.period-selector-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.period-selector-row > div:first-child,
.period-selector-heading > div:first-child {
  display: grid;
  gap: 4px;
}

.selector-eyebrow {
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.period-selector-row strong,
.period-selector-heading strong {
  font-size: 17px;
}

.selector-actions {
  display: flex;
  align-items: center;
  gap: 7px;
}

.selector-button,
.month-button,
.year-button {
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  font-weight: 650;
}

.selector-button {
  min-width: 40px;
  padding: 8px 12px;
}

.selector-button--text {
  min-width: 112px;
}

.year-select-label {
  min-width: 112px;
  display: grid;
  gap: 5px;
}

.year-select-label select {
  padding: 8px 10px;
}

.month-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(12, minmax(48px, 1fr));
  gap: 7px;
}

.month-button,
.year-button {
  padding: 8px 10px;
  color: var(--muted);
}

.month-button.has-data {
  color: var(--text);
}

.month-button.active,
.year-button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.year-grid {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.year-button {
  min-width: 82px;
}

.metrics {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.metric {
  min-height: 116px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--surface);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric.primary {
  border-color: color-mix(in srgb, var(--accent) 25%, var(--border));
  background: var(--accent-soft);
}

.metric span,
.secondary-metrics span {
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  font-size: clamp(23px, 3vw, 32px);
  letter-spacing: -0.035em;
}

.metric small {
  font-size: 12px;
}

.secondary-metrics {
  margin: 12px 0 28px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--border);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  overflow: hidden;
}

.secondary-metrics div {
  padding: 13px 15px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.secondary-metrics strong {
  font-size: 17px;
}

.table-section {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.section-heading {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.section-heading p {
  margin: 5px 0 0;
  font-size: 13px;
}

.filter-label {
  min-width: 180px;
  display: grid;
  gap: 5px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
}

th {
  padding: 12px 16px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-align: left;
  text-transform: uppercase;
}

td {
  padding: 13px 16px;
  border-top: 1px solid var(--border);
  vertical-align: top;
}

.numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.description {
  max-width: 540px;
}

.description small {
  margin-top: 4px;
  display: block;
  color: var(--muted);
}

.badge {
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  display: inline-flex;
  font-size: 12px;
}

.amount-in {
  color: var(--positive);
  font-weight: 700;
}

.amount-out {
  color: var(--negative);
  font-weight: 700;
}

.empty {
  padding: 42px;
  color: var(--muted);
  text-align: center;
}

.hidden {
  display: none !important;
}

footer {
  padding: 16px 4px 0;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 980px) {
  .month-grid {
    grid-template-columns: repeat(6, minmax(48px, 1fr));
  }
}

@media (max-width: 850px) {
  .topbar {
    flex-direction: column;
  }

  .top-actions {
    justify-content: flex-start;
  }

  .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .secondary-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .setup-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .period-selector-row,
  .period-selector-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .selector-actions {
    width: 100%;
  }

  .selector-button--text {
    flex: 1;
  }

  .year-select-label {
    width: 100%;
  }

  .month-grid {
    grid-template-columns: repeat(4, minmax(48px, 1fr));
  }
}

@media (max-width: 520px) {
  .shell {
    width: min(100% - 20px, 1180px);
    padding-top: 20px;
  }

  .back-link {
    margin-bottom: 18px;
  }

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

  .secondary-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .filter-label {
    min-width: 0;
  }
}