:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface-1: #fcfcfb;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);

  --series-1: #2a78d6; /* sales */
  --series-2: #eb6834; /* cogs */
  --series-3: #1baf7a; /* gross profit */

  --status-good: #0ca30c;
  --status-warning: #fab219;
  --status-serious: #ec835a;
  --status-critical: #d03b3b;
  --success-text: #006300;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface-1: #1a1a19;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.1);

    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;

    --status-good: #0ca30c;
    --status-warning: #fab219;
    --status-serious: #ec835a;
    --status-critical: #e66767;
    --success-text: #0ca30c;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.app-header {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 16px;
}

.app-header__title h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

.app-header__subtitle {
  color: var(--text-secondary);
  font-size: 13px;
}

.banner {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  border-radius: 8px;
}

.banner--info {
  background: color-mix(in srgb, var(--series-1) 10%, transparent);
  border: 1px solid var(--border);
}

/* ---- Upload ---- */

.upload-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.upload-card__intro p {
  margin: 0 0 6px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.upload-card__privacy {
  color: var(--text-muted) !important;
  font-size: 12px !important;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease;
}

.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--series-1);
  background: color-mix(in srgb, var(--series-1) 5%, transparent);
  outline: none;
}

.dropzone.is-dragover {
  border-color: var(--series-1);
  background: color-mix(in srgb, var(--series-1) 8%, transparent);
}

.dropzone__icon {
  font-size: 28px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.dropzone__text {
  font-size: 14px;
  font-weight: 500;
}

.dropzone__hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.file-list__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
}

.file-list__name {
  font-weight: 500;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-list__period {
  color: var(--text-muted);
  font-size: 12px;
  white-space: nowrap;
}

.file-list__status {
  font-size: 12px;
  white-space: nowrap;
}

.file-list__status--ok { color: var(--success-text); }
.file-list__status--error { color: var(--status-critical); }
.file-list__status--pending { color: var(--text-muted); }

.file-list__remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 2px 6px;
}

.file-list__remove:hover {
  color: var(--status-critical);
}

.upload-messages {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.upload-message {
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 6px;
  line-height: 1.4;
}

.upload-message--warning {
  background: color-mix(in srgb, var(--status-warning) 15%, transparent);
  color: var(--text-secondary);
}

.upload-message--error {
  background: color-mix(in srgb, var(--status-critical) 12%, transparent);
  color: var(--status-critical);
}

/* ---- Filters ---- */

.filter-row {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-row--compact {
  padding: 12px 0 14px;
  border-bottom: 1px solid var(--gridline);
  margin-bottom: 4px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
}

.field__label {
  color: var(--text-secondary);
  font-size: 12px;
}

.field select,
.field input {
  background: var(--surface-1);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 13px;
  font-family: inherit;
  min-width: 160px;
  max-width: 220px;
}

.field--search input {
  min-width: 200px;
}

/* ---- KPI row ---- */

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.stat-tile {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-tile__label {
  font-size: 12px;
  color: var(--text-secondary);
}

.stat-tile__value {
  font-size: 26px;
  font-weight: 600;
  font-variant-numeric: proportional-nums;
}

/* ---- Chart cards ---- */

.chart-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

@media (max-width: 860px) {
  .chart-grid {
    grid-template-columns: 1fr;
  }
}

.chart-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px 18px;
  margin: 0;
}

.chart-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.chart-card__title {
  font-size: 14px;
  font-weight: 600;
}

.chart-card__toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  font-family: inherit;
  padding: 4px 9px;
  cursor: pointer;
}

.chart-card__toggle:hover {
  color: var(--text-primary);
}

.chart-card__legend {
  display: flex;
  gap: 14px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-item__swatch {
  width: 14px;
  height: 2px;
  border-radius: 1px;
  display: inline-block;
}

.chart-card__body {
  position: relative;
}

.chart-card__body svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.chart-card__table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.chart-card__table th,
.chart-card__table td {
  text-align: left;
  padding: 4px 6px;
  border-bottom: 1px solid var(--gridline);
}

.chart-card__empty {
  color: var(--text-muted);
  font-size: 13px;
}

/* ---- Tooltip ---- */

.viz-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--text-primary);
  color: var(--page);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 12px;
  line-height: 1.5;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  z-index: 20;
  opacity: 0;
  transition: opacity 0.08s ease;
  white-space: nowrap;
}

.viz-tooltip.is-visible {
  opacity: 1;
}

.viz-tooltip__title {
  color: var(--text-muted);
  font-size: 11px;
  margin-bottom: 3px;
}

.viz-tooltip__row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.viz-tooltip__key {
  width: 10px;
  height: 2px;
  border-radius: 1px;
  display: inline-block;
}

.viz-tooltip__value {
  font-weight: 700;
  margin-left: auto;
  padding-left: 10px;
}

/* ---- Status ---- */

.status-good { color: var(--success-text); }
.status-warning { color: color-mix(in srgb, var(--status-warning) 70%, var(--text-primary)); }
.status-critical { color: var(--status-critical); }

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 5px;
}
.status-dot--good { background: var(--status-good); }
.status-dot--warning { background: var(--status-warning); }
.status-dot--critical { background: var(--status-critical); }

/* ---- Breakdown table ---- */

.table-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px 8px;
}

.table-card__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}

.table-card__title {
  font-size: 14px;
  font-weight: 600;
}

.table-card__count {
  font-size: 12px;
  color: var(--text-muted);
}

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

#breakdownTable {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

#breakdownTable th {
  text-align: left;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 12px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--gridline);
  white-space: nowrap;
  cursor: default;
}

#breakdownTable th[data-sort-key] {
  cursor: pointer;
  user-select: none;
}

#breakdownTable th[data-sort-key]:hover {
  color: var(--text-primary);
}

#breakdownTable th.is-sorted::after {
  content: " ▾";
  font-size: 10px;
}

#breakdownTable th.is-sorted[data-dir="asc"]::after {
  content: " ▴";
}

#breakdownTable td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--gridline);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

#breakdownTable td.num,
#breakdownTable th.num {
  text-align: right;
}

.empty-row td {
  text-align: center;
  color: var(--text-muted);
  padding: 24px !important;
}