:root {
  --bg: #eef4f8;
  --bg-soft: #e8f1f6;
  --panel: #ffffff;
  --panel-tint: #f8fbfd;
  --text: #1c2d36;
  --muted: #5a727f;
  --border: #d2e2ea;
  --accent: #0f766e;
  --accent-strong: #0b5f58;
  --accent-soft: #d8efed;
  --shadow-sm: 0 2px 8px rgba(12, 36, 48, 0.06);
  --shadow-md: 0 8px 24px rgba(12, 36, 48, 0.1);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Aptos, 'Segoe UI Variable', 'Segoe UI', Tahoma, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 92% 8%, rgba(15, 118, 110, 0.16) 0, transparent 38%),
    radial-gradient(circle at 14% 22%, rgba(8, 145, 178, 0.12) 0, transparent 34%),
    linear-gradient(170deg, var(--bg-soft), var(--bg));
  line-height: 1.45;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 30px 24px 36px;
  display: grid;
  gap: 18px;
}

.header {
  padding: 8px 2px 2px;
}

.header h1 {
  margin: 0;
  font-size: 2.1rem;
  letter-spacing: 0.01em;
  font-weight: 760;
}

.header p {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 760px;
}

.panel {
  background: linear-gradient(180deg, var(--panel), var(--panel-tint));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
}

.controls {
  display: flex;
  gap: 14px;
  align-items: center;
}

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

.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 14px 12px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 140ms ease, box-shadow 160ms ease;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #5db8b0, var(--accent));
  opacity: 0.65;
}

.stat-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.stat-card.is-featured {
  border-color: #8ecac5;
  background: linear-gradient(180deg, #ffffff, #f2fbfa);
}

.stat-card h3 {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.stat-card p {
  margin: 8px 0 0;
  font-size: 1.42rem;
  font-weight: 700;
  color: #16333f;
}

.compact-summary {
  display: grid;
  gap: 6px;
  border-left: 5px solid #a6d9d4;
  background: linear-gradient(90deg, #f2fbfa, #f7fcfd);
}

.compact-line {
  margin: 0;
  font-size: 0.92rem;
}

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

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.panel-header h2 {
  margin: 0;
  font-size: 1.14rem;
  letter-spacing: 0.01em;
}

.sorting {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: #2f4a58;
  font-weight: 600;
}

.panel-header label,
.controls label {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 9px 5px 10px;
}

select {
  padding: 7px 28px 7px 10px;
  border-radius: 999px;
  border: 1px solid #b9d3df;
  background: linear-gradient(180deg, #ffffff, #f7fbfd);
  color: #244250;
  font-weight: 600;
  outline: none;
}

select:hover {
  border-color: #8ab8cb;
}

select:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.18);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #ffffff;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  background: #edf6fa;
  color: #2a4a59;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 700;
  position: sticky;
  top: 0;
  z-index: 1;
}

th,
td {
  text-align: left;
  padding: 11px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

tbody tr:nth-child(even) {
  background: #f8fcff;
}

tbody tr:hover {
  background: #eaf7fb;
}

tbody td:nth-child(3) {
  font-weight: 650;
  color: #173847;
}

.action-link {
  color: var(--accent-strong);
  background: #e7f5f3;
  border: 1px solid #b7dfda;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.action-link:hover {
  background: #d8efec;
}

.action-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.16);
}

.empty {
  color: var(--muted);
  margin: 10px 0 0;
  font-size: 0.88rem;
}

.hidden {
  display: none;
}

.chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  min-height: 220px;
  padding: 12px 6px 4px;
  border-radius: 12px;
  background: linear-gradient(180deg, #f4fafc, #ffffff);
  border: 1px solid var(--border);
}

#chartMeta {
  margin: 8px 0 10px;
  padding: 9px 11px;
  border: 1px dashed #b6d4e1;
  border-radius: 10px;
  background: #f3f9fc;
}

.chart-bar {
  background: linear-gradient(180deg, #5fd2c8, var(--accent));
  border: 1px solid #2e8b84;
  border-radius: 8px 8px 0 0;
  position: relative;
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.08);
}

.chart-item {
  flex: 1;
  min-width: 80px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-end;
}

.chart-count {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.74rem;
  font-weight: 700;
  color: #12313d;
  background: #f6fdff;
  border: 1px solid #b6d4e1;
  border-radius: 999px;
  padding: 1px 7px;
  white-space: nowrap;
}

.chart-range {
  margin-top: 8px;
  font-size: 0.7rem;
  line-height: 1.2;
  color: #45616f;
  text-align: center;
  font-weight: 600;
}

.changes {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.change-item {
  font-size: 0.89rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.change-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.change-type {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.change-item.type-new .change-type {
  color: #16643f;
  background: #e4f7ea;
  border-color: #a7d9ba;
}

.change-item.type-price_changed .change-type,
.change-item.type-attributes_changed .change-type {
  color: #8b4f0f;
  background: #fff3df;
  border-color: #f0c987;
}

.change-item.type-removed .change-type {
  color: #8c2530;
  background: #ffe7ea;
  border-color: #f4b3bb;
}

.change-ids {
  color: #4d6876;
  font-size: 0.8rem;
  font-weight: 600;
}

.change-detail {
  color: #203845;
  margin-bottom: 5px;
}

.change-item small {
  color: #5d7582;
  font-size: 0.76rem;
}

@media (max-width: 768px) {
  .container {
    padding: 14px 12px 20px;
  }

  .header h1 {
    font-size: 1.5rem;
  }

  .panel {
    padding: 14px;
  }

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

  .chart-item {
    min-width: 74px;
  }

  .chart-range {
    font-size: 0.66rem;
  }

  .change-head {
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .panel-header {
    align-items: flex-start;
  }

  .controls {
    flex-wrap: wrap;
  }
}