/* ===== ProfitLens — Source Market Heatmap ===== */
:root {
  --bg: #0F1117;
  --card: #1A1D26;
  --card-hover: #22252F;
  --border: #2A2D36;
  --teal: #20808D;
  --teal-40: rgba(32, 128, 141, 0.4);
  --teal-70: rgba(32, 128, 141, 0.7);
  --gold: #FFC553;
  --gold-dim: rgba(255, 197, 83, 0.4);
  --red: #E05252;
  --text: #E8E9ED;
  --text-muted: #8B8D97;
  --text-dim: #5A5C66;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
  min-height: 100vh;
}

/* ===== Header ===== */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo {
  flex-shrink: 0;
}

.header-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.header-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== Main ===== */
.main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 32px 64px;
}

.section {
  margin-bottom: 48px;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  color: var(--text);
}

.section-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  max-width: 700px;
}

/* ===== Heatmap ===== */
.heatmap-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  padding: 16px 12px 12px;
}

.heatmap-container {
  min-width: 900px;
}

/* Month row */
.heatmap-month-row {
  display: grid;
  grid-template-columns: 140px repeat(53, 1fr);
  gap: 2px;
  margin-bottom: 6px;
}

.month-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: center;
  padding: 2px 0;
}

.month-label-spacer {
  /* Row header placeholder */
}

/* Tier headers */
.tier-header {
  display: grid;
  grid-template-columns: 140px repeat(53, 1fr);
  gap: 2px;
  margin-top: 8px;
  margin-bottom: 4px;
}

.tier-header-label {
  grid-column: 1 / -1;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 0;
}

/* Heatmap rows */
.heatmap-row {
  display: grid;
  grid-template-columns: 140px repeat(53, 1fr);
  gap: 2px;
  margin-bottom: 2px;
}

.row-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding-right: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-label .country-code {
  font-size: 0.65rem;
  color: var(--text-dim);
  margin-left: 4px;
}

.row-label.oman-label {
  color: var(--gold);
  font-weight: 700;
}

a.country-link { color: inherit; text-decoration: none; }
a.country-link:hover { text-decoration: underline; }

.heatmap-cell {
  aspect-ratio: 1;
  min-height: 14px;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.15s ease;
  position: relative;
}

.heatmap-cell:hover {
  transform: scale(1.4);
  z-index: 10;
  box-shadow: 0 0 8px rgba(32, 128, 141, 0.5);
}

.heatmap-cell.level-0 { background: var(--card); border: 1px solid var(--border); }
.heatmap-cell.level-1 { background: var(--teal-40); }
.heatmap-cell.level-2 { background: var(--teal-70); }
.heatmap-cell.level-3 { background: var(--teal); }

.heatmap-cell.oman-0 { background: var(--card); border: 1px solid var(--border); }
.heatmap-cell.oman-1 { background: var(--gold-dim); }
.heatmap-cell.oman-2 { background: rgba(255, 197, 83, 0.7); }
.heatmap-cell.oman-3 { background: var(--gold); }

/* Legend */
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.legend-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  color: var(--text-dim);
}

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  display: inline-block;
  flex-shrink: 0;
}

/* ===== Overlap Bar Chart ===== */
.chart-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  height: 240px;
}

/* ===== Overlap Cards ===== */
.overlap-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.overlap-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: border-color 0.2s ease;
}

.overlap-card:hover {
  border-color: var(--teal);
}

.overlap-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}

.overlap-card-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.badge {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  flex-shrink: 0;
  margin-left: 8px;
}

.badge-peak {
  background: rgba(224, 82, 82, 0.15);
  color: var(--red);
  border: 1px solid rgba(224, 82, 82, 0.3);
}

.badge-high {
  background: rgba(255, 197, 83, 0.12);
  color: var(--gold);
  border: 1px solid rgba(255, 197, 83, 0.3);
}

.overlap-card-dates {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.overlap-card-markets {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--teal);
  margin-bottom: 2px;
  font-variant-numeric: tabular-nums;
}

.overlap-card-markets-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.overlap-card-countries {
  font-size: 0.7rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ===== Weight Matrix ===== */
.matrix-wrapper {
  overflow-x: auto;
}

.weight-matrix {
  width: 100%;
  max-width: 700px;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.weight-matrix th,
.weight-matrix td {
  padding: 12px 16px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.weight-matrix th {
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  background: var(--card);
}

.weight-matrix th:first-child,
.weight-matrix td:first-child {
  text-align: left;
}

.weight-matrix td {
  color: var(--text);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.weight-matrix td:first-child {
  font-weight: 700;
  color: var(--teal);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.weight-matrix tbody tr {
  background: var(--card);
  transition: background 0.15s ease;
}

.weight-matrix tbody tr:hover {
  background: var(--card-hover);
}

.weight-value {
  display: inline-block;
  min-width: 36px;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.weight-high { background: rgba(32, 128, 141, 0.2); color: var(--teal); }
.weight-mid { background: rgba(32, 128, 141, 0.1); color: rgba(32, 128, 141, 0.7); }
.weight-low { background: rgba(32, 128, 141, 0.05); color: var(--text-dim); }

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 24px 32px;
  font-size: 0.75rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ===== Tooltip ===== */
.tooltip {
  position: fixed;
  display: none;
  background: #13151C;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.75rem;
  color: var(--text);
  pointer-events: none;
  z-index: 1000;
  max-width: 260px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  line-height: 1.5;
}

.tooltip-country {
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 3px;
}

.tooltip-week {
  color: var(--text-muted);
  font-size: 0.7rem;
  margin-bottom: 4px;
}

.tooltip-holidays {
  color: var(--text);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px 16px;
  }

  .main {
    padding: 20px 16px 48px;
  }

  .overlap-cards {
    grid-template-columns: 1fr;
  }
}