/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0F1117;
  --card: #1A1D26;
  --card-border: #252830;
  --accent: #20808D;
  --accent-light: #28A0B0;
  --accent-dim: rgba(32,128,141,0.15);
  --text: #E8EAED;
  --text-muted: #9AA0AB;
  --text-faint: #5E646F;
  --success: #34D399;
  --error: #F87171;
  --radius: 10px;
  --radius-sm: 6px;
  font-variant-numeric: tabular-nums lining-nums;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* ===== TOP BAR ===== */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,17,23,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
}

.top-bar-inner {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand-icon { flex-shrink: 0; }

.filters {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  flex: 1;
  justify-content: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.filter-group label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-group select,
.multi-select-btn {
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text);
  font-size: 13px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  min-width: 155px;
  text-align: left;
  transition: border-color 0.15s;
  height: 34px;
}

.filter-group select:focus,
.multi-select-btn:focus {
  outline: none;
  border-color: var(--accent);
}

.filter-group select option {
  background: var(--card);
  color: var(--text);
}

/* Multi-select dropdown */
.multi-select {
  position: relative;
}

.multi-select-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  min-width: 220px;
  max-height: 260px;
  overflow-y: auto;
  z-index: 200;
  padding: 6px 0;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.multi-select-dropdown.open { display: block; }

.multi-select-dropdown label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  transition: background 0.1s;
}

.multi-select-dropdown label:hover { background: var(--accent-dim); }

.multi-select-dropdown input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.btn-reset {
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
  height: 34px;
  align-self: flex-end;
}

.btn-reset:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.mobile-filter-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 13px;
  font-family: inherit;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-left: auto;
}

/* ===== DASHBOARD ===== */
.dashboard {
  max-width: 1440px;
  margin: 0 auto;
  padding: 20px 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ===== KPI ROW ===== */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.kpi-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color 0.2s;
}

.kpi-card:hover { border-color: var(--accent); }

.kpi-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

/* ===== CHART CARDS ===== */
.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.chart-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.chart-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.chart-wrap { position: relative; }

.chart-wrap-bar { height: 320px; }
.chart-wrap-stacked { height: 360px; }
.chart-wrap-donut { height: 300px; display: flex; align-items: center; justify-content: center; }

/* ===== DATA TABLE ===== */
.table-section {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 12px;
}

.table-search {
  background: var(--bg);
  border: 1px solid var(--card-border);
  color: var(--text);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  width: 280px;
  transition: border-color 0.15s;
}

.table-search::placeholder { color: var(--text-faint); }
.table-search:focus { outline: none; border-color: var(--accent); }

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

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

#data-table thead th {
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  padding: 10px 12px;
  border-bottom: 1px solid var(--card-border);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: color 0.15s;
  position: relative;
}

#data-table thead th:hover { color: var(--accent-light); }
#data-table thead th.num-col { text-align: right; }

.sort-icon {
  font-size: 10px;
  margin-left: 2px;
  opacity: 0.4;
}

#data-table thead th.sorted-asc .sort-icon::after { content: ' ▲'; opacity: 1; }
#data-table thead th.sorted-desc .sort-icon::after { content: ' ▼'; opacity: 1; }

#data-table tbody td {
  padding: 9px 12px;
  border-bottom: 1px solid rgba(37,40,48,0.5);
  color: var(--text);
  vertical-align: middle;
}

#data-table tbody td.num-col { text-align: right; font-weight: 500; }

#data-table tbody tr { transition: background 0.1s; }
#data-table tbody tr:hover { background: var(--accent-dim); }

a.hotel-link { color: var(--accent-light); text-decoration: none; }
a.hotel-link:hover { text-decoration: underline; }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.pagination button {
  background: var(--bg);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 12px;
  font-family: inherit;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  min-width: 34px;
}

.pagination button:hover { border-color: var(--accent); color: var(--text); }
.pagination button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.pagination button:disabled { opacity: 0.3; cursor: default; }

.pagination .page-info {
  font-size: 12px;
  color: var(--text-faint);
  margin: 0 8px;
}

/* ===== FOOTER ===== */
.site-footer {
  max-width: 1440px;
  margin: 0 auto;
  padding: 16px 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-faint);
  border-top: 1px solid var(--card-border);
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s;
}

.site-footer a:hover { color: var(--accent-light); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .chart-row { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .chart-wrap-bar { height: 280px; }
  .chart-wrap-stacked { height: 320px; }
}

@media (max-width: 768px) {
  .filters { display: none; }
  .filters.show { display: flex; width: 100%; }
  .mobile-filter-toggle { display: flex; }
  .top-bar-inner { gap: 12px; }
  .dashboard { padding: 16px 14px 32px; gap: 14px; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .kpi-value { font-size: 22px; }
  .table-search { width: 100%; }
  .site-footer { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .kpi-card { padding: 14px 16px; }
  .kpi-value { font-size: 20px; }
}