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

html, body {
  width: 100%;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  font-size: 14px;
  overflow: hidden;
}

#map {
  position: absolute;
  inset: 0;
  cursor: crosshair;
  background-color: #08013A;
}

/* Panel */
#panel {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 230px;
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(220, 220, 230, 0.7);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 4px 28px rgba(0, 0, 0, 0.13);
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#panel h2 {
  font-size: 15px;
  font-weight: 700;
  color: #1a1230;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}

.icon-btn {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.06);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  flex-shrink: 0;
}
.icon-btn:hover { background: rgba(0, 0, 0, 0.12); }

/* Controls */
.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  color: #777;
  letter-spacing: 0.07em;
}

.value-badge {
  font-size: 12px;
  font-weight: 700;
  color: #6622bb;
  text-transform: none;
  letter-spacing: 0;
}

select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #e0dde8;
  border-radius: 8px;
  background: #fafaf9;
  font-size: 13px;
  color: #333;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}

select:focus { outline: 2px solid #6622bb; outline-offset: 1px; border-color: transparent; }

.scheme-preview {
  display: flex;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.scheme-preview-swatch {
  flex: 1;
  min-width: 0;
}

.scheme-preview-swatch.is-light {
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

input[type="range"] {
  width: 100%;
  height: 4px;
  accent-color: #6622bb;
  cursor: pointer;
}

/* Toggle */
.toggle-group {
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #e0dde8;
}

.toggle-btn {
  flex: 1;
  padding: 7px 6px;
  border: none;
  background: #fafaf9;
  font-size: 12px;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  line-height: 1;
}

.toggle-btn + .toggle-btn {
  border-left: 1px solid #e0dde8;
}

.toggle-btn.active {
  background: #6622bb;
  color: #fff;
  font-weight: 600;
}

/* Legend */
#legend {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
}

.legend-label {
  font-size: 11px;
  color: #555;
}

/* Status */
#status {
  font-size: 11px;
  color: #999;
  line-height: 1.45;
}

#status.error {
  color: #d63030;
}

/* Loading pill */
#loading {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(22, 14, 42, 0.88);
  color: #fff;
  padding: 9px 18px 9px 14px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  z-index: 20;
  backdrop-filter: blur(10px);
  white-space: nowrap;
  box-shadow: 0 2px 16px rgba(0,0,0,0.25);
}

#loading.hidden { display: none; }

.spinner {
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  flex-shrink: 0;
}

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

/* ── Dark mode ─────────────────────────────────────── */
body.dark #panel {
  background: rgba(16, 8, 30, 0.94);
  border-color: rgba(110, 70, 180, 0.22);
  box-shadow: 0 4px 28px rgba(0, 0, 0, 0.5);
}
body.dark #panel h2            { color: #e4dcf8; }
body.dark .control-label       { color: #7a6898; }
body.dark .value-badge         { color: #b090ff; }
body.dark #status              { color: #5a4878; }
body.dark #status.error        { color: #ff6666; }
body.dark .legend-label        { color: #9080b8; }
body.dark .legend-swatch       { box-shadow: 0 0 0 1px rgba(255,255,255,0.08); }

body.dark select {
  background-color: #1c1030;
  color: #ccc0e8;
  border-color: rgba(110, 70, 180, 0.28);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23886699' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
body.dark select:focus { outline-color: #9940ff; }

body.dark .scheme-preview {
  border-color: rgba(255, 255, 255, 0.12);
}

body.dark .scheme-preview-swatch.is-light {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

body.dark input[type="range"] { accent-color: #9940ff; }

body.dark .toggle-group        { border-color: rgba(110, 70, 180, 0.28); }
body.dark .toggle-btn          { background: #1c1030; color: #7060a0; }
body.dark .toggle-btn + .toggle-btn { border-color: rgba(110, 70, 180, 0.28); }
body.dark .toggle-btn.active   { background: #7a2ee0; color: #fff; }

body.dark .icon-btn            { background: rgba(255,255,255,0.07); }
body.dark .icon-btn:hover      { background: rgba(255,255,255,0.14); }

body.dark .export-btn          { background: #7a2ee0; }
body.dark .export-btn:hover:not(:disabled) { background: #9040f0; }
body.dark .export-btn:disabled { background: #1e1038; color: #3e2860; }

/* Export buttons */
.export-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.export-btn {
  width: 100%;
  padding: 9px 10px;
  border: none;
  border-radius: 8px;
  background: #6622bb;
  color: #fff;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  letter-spacing: 0.02em;
}

.export-btn:hover:not(:disabled) {
  background: #7a30d4;
}

.export-btn:disabled {
  background: #d0cad8;
  color: #aaa;
  cursor: not-allowed;
}