/* Design Tokens */
:root {
  --bg-canvas: #07070d;
  --bg-primary: #0f1220;
  --bg-secondary: #151a2d;
  --bg-tertiary: #1c2238;
  --bg-hover: #252e4b;
  --bg-panel: #111526e0;
  --bg-chip: #120f1f;

  --border: #2e3755;
  --border-light: #43517a;
  --border-soft: #242d47;

  --text-primary: #f6f4ff;
  --text-secondary: #babed3;
  --text-muted: #858ca9;

  --accent: #c26bff;
  --accent-strong: #d9a0ff;
  --accent-dim: rgba(194, 107, 255, 0.22);
  --accent-outline: rgba(194, 107, 255, 0.52);
  --accent-ink: #171329;

  --grade-a: #3fb950;
  --grade-b: #58a6ff;
  --grade-c: #d29922;
  --grade-d: #f85149;

  --radius-xs: 6px;
  --radius-sm: 9px;
  --radius: 12px;
  --radius-lg: 16px;

  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.25);
  --shadow: 0 12px 34px rgba(0, 0, 0, 0.36);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition-fast: 140ms ease;
  --transition: 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

html,
body {
  height: 100%;
}

body {
  font-family: var(--font);
  color: var(--text-primary);
  background:
    radial-gradient(900px 500px at 8% -5%, rgba(194, 107, 255, 0.22), transparent 66%),
    radial-gradient(780px 460px at 96% -10%, rgba(132, 72, 196, 0.14), transparent 70%),
    linear-gradient(175deg, #0b0d15, var(--bg-canvas));
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

:focus-visible {
  outline: 2px solid var(--accent-outline);
  outline-offset: 2px;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  background: linear-gradient(180deg, rgba(22, 27, 47, 0.92), rgba(16, 20, 36, 0.9));
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  flex-shrink: 0;
  animation: fade-up 0.45s ease both;
}

.header-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.site-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.2px;
  text-decoration: none;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.site-link:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-light);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.site-link.is-active {
  background: var(--accent-dim);
  border-color: var(--accent-outline);
  color: var(--accent-strong);
}

header h1 {
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.3px;
}

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

.badge,
.badge-small {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-outline);
  background: var(--accent-dim);
  color: var(--accent-strong);
  font-weight: 600;
  white-space: nowrap;
}

.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
}

.badge-small {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
}

.header-right {
  display: flex;
  gap: 8px;
}

/* Buttons */
.btn {
  font-family: var(--font);
  font-size: 13px;
  font-weight: 550;
  line-height: 1.2;
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(36, 44, 69, 0.6), rgba(26, 32, 52, 0.75));
  color: var(--text-primary);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast);
}

.btn:hover {
  background: linear-gradient(180deg, rgba(41, 50, 78, 0.78), rgba(30, 37, 61, 0.85));
  border-color: var(--border-light);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.46;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.btn-primary {
  background: linear-gradient(138deg, var(--accent-strong), var(--accent));
  color: var(--accent-ink);
  border-color: rgba(208, 142, 255, 0.84);
  font-weight: 700;
}

.btn-primary:hover {
  background: linear-gradient(138deg, #deb4ff, #cd7aff);
  border-color: rgba(225, 188, 255, 0.96);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-soft);
}

.btn-sm {
  font-size: 12px;
  padding: 5px 10px;
}

/* Layout */
main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
#query-panel {
  width: 330px;
  min-width: 330px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow: hidden;
  padding: 0;
  display: flex;
  flex-direction: column;
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.15);
  transition: width var(--transition), min-width var(--transition), border-color var(--transition);
  animation: fade-up 0.5s ease both;
}

main.sidebar-collapsed #query-panel {
  width: 0;
  min-width: 0;
  border-right-color: transparent;
}

.sidebar-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 12px 12px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-tab {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.25px;
  padding: 8px 10px;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.sidebar-tab:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.sidebar-tab.is-active {
  background: var(--accent-dim);
  border-color: var(--accent-outline);
  color: var(--accent-strong);
}

.sidebar-panel {
  flex: 1;
  overflow-y: auto;
  padding: 4px 14px 18px;
  display: none;
}

.sidebar-panel.is-active {
  display: block;
}

.sidebar-panel::-webkit-scrollbar {
  width: 7px;
}

.sidebar-panel::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-panel::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 999px;
}

.panel-section {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-soft);
}

.panel-section:last-child {
  border-bottom: none;
}

.panel-section h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 650;
}

.panel-section label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin: 8px 0 4px;
  font-weight: 550;
}

.input-field {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(31, 38, 60, 0.8), rgba(24, 30, 48, 0.92));
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 13px;
  padding: 8px 10px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-field:focus {
  border-color: var(--accent-outline);
  box-shadow: 0 0 0 3px rgba(194, 107, 255, 0.22);
  outline: none;
}

.input-field::placeholder {
  color: var(--text-muted);
}

input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

select.input-field {
  cursor: pointer;
}

select.input-field option {
  background: var(--bg-secondary);
}

.input-sm {
  font-size: 12px;
  padding: 6px 8px;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.range-sep {
  color: var(--text-muted);
  font-size: 14px;
}

.input-half {
  flex: 1;
}

.checkbox-grid {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font-size: 13px;
}

.chip input {
  display: none;
}

.chip-label {
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 650;
  font-size: 12px;
  border: 1px solid transparent;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.chip input:checked + .chip-label {
  opacity: 1;
  transform: translateY(-1px);
}

.chip input:not(:checked) + .chip-label {
  opacity: 0.35;
}

.grade-a {
  background: rgba(63, 185, 80, 0.2);
  color: var(--grade-a);
  border-color: rgba(63, 185, 80, 0.5);
}

.grade-b {
  background: rgba(88, 166, 255, 0.2);
  color: var(--grade-b);
  border-color: rgba(88, 166, 255, 0.5);
}

.grade-c {
  background: rgba(210, 153, 34, 0.2);
  color: var(--grade-c);
  border-color: rgba(210, 153, 34, 0.48);
}

.grade-d {
  background: rgba(248, 81, 73, 0.2);
  color: var(--grade-d);
  border-color: rgba(248, 81, 73, 0.5);
}

/* Content Area */
#content-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  gap: 10px;
  padding: 10px;
  animation: fade-up 0.55s ease both;
}

/* Map */
#map-container {
  position: relative;
  flex: 1;
  min-height: 300px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow);
}

#map {
  width: 100%;
  height: 100%;
  background: #0f1220;
}

/* Dark-themed Leaflet overrides */
.leaflet-container {
  background: #0f1220 !important;
}

.leaflet-control-zoom a {
  background: rgba(17, 22, 38, 0.9) !important;
  color: var(--text-primary) !important;
  border-color: var(--border) !important;
}

.leaflet-control-zoom a:hover {
  background: rgba(31, 38, 61, 0.95) !important;
  color: var(--accent-strong) !important;
}

.leaflet-popup-content-wrapper {
  background: rgba(17, 22, 38, 0.96) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-light) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow) !important;
}

.leaflet-popup-tip {
  background: rgba(17, 22, 38, 0.96) !important;
}

.leaflet-popup-content {
  font-family: var(--font);
  font-size: 12px;
  line-height: 1.55;
}

.leaflet-popup-content strong {
  color: var(--accent-strong);
}

.leaflet-control-attribution {
  background: rgba(12, 15, 25, 0.72) !important;
  color: var(--text-muted) !important;
}

.leaflet-control-attribution a {
  color: var(--accent-strong) !important;
}

/* Layer Workspace */
.layer-workbench {
  display: flex;
  flex-direction: column;
}

.layer-section h3 {
  margin-bottom: 8px;
}

.layer-helper {
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.layer-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(33, 41, 66, 0.78), rgba(24, 31, 50, 0.9));
  color: var(--text-secondary);
  font-size: 12px;
}

#layer-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.layer-item {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(31, 38, 61, 0.72), rgba(24, 30, 48, 0.88));
  overflow: hidden;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.layer-item:hover {
  background: linear-gradient(180deg, rgba(37, 46, 73, 0.8), rgba(29, 35, 56, 0.92));
  border-color: var(--border-light);
}

.layer-item.dragging {
  opacity: 0.45;
  cursor: grabbing;
}

.layer-item.drag-over {
  border-color: var(--accent-outline);
  box-shadow: 0 0 0 1px var(--accent-outline) inset;
}

.layer-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
}

.drag-handle {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1;
  cursor: grab;
  user-select: none;
  padding: 2px 4px;
}

.layer-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
}

.layer-toggle input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
}

.layer-expand-btn {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  background: rgba(20, 25, 41, 0.9);
  color: var(--text-secondary);
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.layer-expand-btn:hover {
  background: rgba(32, 38, 60, 0.95);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.layer-expand-btn .chevron {
  display: block;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform-origin: center;
  transform: rotate(-45deg);
  transition: transform var(--transition-fast);
}

.layer-item.is-expanded .layer-expand-btn .chevron {
  transform: rotate(45deg);
}

.layer-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 10px 10px 10px 34px;
  border-top: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(16, 20, 35, 0.92), rgba(13, 17, 30, 0.96));
}

.layer-style-label,
.sub-toggle {
  font-size: 12px;
  color: var(--text-secondary);
}

.color-input {
  width: 48px;
  height: 30px;
  padding: 2px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  background: #111628;
  cursor: pointer;
}

.opacity-input {
  width: 100%;
  accent-color: var(--accent);
}

.hidden {
  display: none !important;
}

#map-legend {
  margin-top: 2px;
}

.legend-title {
  font-size: 10px;
  font-weight: 650;
  color: var(--text-secondary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.55px;
}

.legend-bar {
  width: 100%;
  height: 10px;
  border-radius: 4px;
  margin-bottom: 4px;
}

.legend-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
}

.legend-holc {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.legend-holc-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
}

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

.legend-empty {
  font-size: 11px;
  color: var(--text-muted);
  padding: 6px 8px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.02);
}

/* Loading Overlay */
#loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 10, 17, 0.86);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  z-index: 2000;
  font-size: 14px;
  color: var(--text-secondary);
  backdrop-filter: blur(4px);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.14);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-error {
  max-width: 360px;
  text-align: center;
  line-height: 1.4;
  color: #ddd3ff;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Table */
#table-container {
  position: relative;
  height: 250px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(20, 24, 40, 0.96), rgba(16, 20, 33, 0.98));
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: height var(--transition), min-height var(--transition);
}

#table-resize-handle {
  height: 10px;
  flex-shrink: 0;
  cursor: ns-resize;
  position: relative;
  touch-action: none;
}

#table-resize-handle::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 3px;
  transform: translateX(-50%);
  width: 70px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(194, 107, 255, 0.2), rgba(194, 107, 255, 0.78), rgba(194, 107, 255, 0.2));
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

#table-resize-handle:hover::after,
#table-container.is-resizing #table-resize-handle::after {
  background: linear-gradient(90deg, rgba(194, 107, 255, 0.3), rgba(217, 160, 255, 0.95), rgba(194, 107, 255, 0.3));
  box-shadow: 0 0 0 1px rgba(194, 107, 255, 0.22);
}

#table-container.is-resizing {
  transition: none;
  user-select: none;
}

#table-container.collapsed {
  height: 46px;
  min-height: 46px;
}

#table-container.collapsed .table-wrap {
  display: none;
}

#table-container.collapsed .table-header {
  border-bottom: none;
}

#table-container.collapsed .table-controls > :not(#btn-toggle-table) {
  display: none;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-soft);
  flex-shrink: 0;
}

.table-header h3 {
  font-size: 14px;
  font-weight: 650;
}

.table-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

.table-wrap {
  overflow: auto;
  flex: 1;
}

.table-wrap::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

.table-wrap::-webkit-scrollbar-track {
  background: transparent;
}

.table-wrap::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 999px;
}

#results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  white-space: nowrap;
}

#results-table th {
  position: sticky;
  top: 0;
  background: #1a2034;
  color: var(--text-secondary);
  font-weight: 650;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.52px;
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
  transition: color var(--transition-fast), background var(--transition-fast);
}

#results-table th:hover {
  color: var(--accent-strong);
  background: #202842;
}

#results-table th.sort-asc::after {
  content: ' ▲';
  color: var(--accent-strong);
}

#results-table th.sort-desc::after {
  content: ' ▼';
  color: var(--accent-strong);
}

#results-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-primary);
}

#results-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.015);
}

#results-table tbody tr:hover {
  background: rgba(194, 107, 255, 0.11);
}

.table-empty-row:hover {
  background: transparent !important;
}

.table-empty {
  text-align: center;
  font-style: italic;
  color: var(--text-muted);
  padding: 18px 12px !important;
}

@media (max-width: 1080px) {
  #query-panel {
    width: 304px;
    min-width: 304px;
  }

  #content-area {
    padding: 8px;
    gap: 8px;
  }
}

@media (max-width: 860px) {
  header {
    flex-wrap: wrap;
  }

  .header-left {
    width: 100%;
  }

  .header-right {
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  main {
    flex-direction: column;
  }

  #query-panel {
    width: 100%;
    min-width: 100%;
    max-height: 44vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
    transition: max-height var(--transition), border-color var(--transition);
  }

  main.sidebar-collapsed #query-panel {
    width: 100%;
    min-width: 100%;
    max-height: 0;
    border-bottom-color: transparent;
  }

  #content-area {
    padding: 8px;
  }

  #table-container {
    height: 220px;
  }
}