:root {
  --bg: #1a1a1a;
  --bg-light: #2a2a2a;
  --panel: #2a2a2a;
  --border: #404040;
  --text: #f0f0f0;
  --text-dim: #b0b0b0;
  --accent: #4a9eff;
  --success: #4ade80;
  --danger: #f87171;
  --warning: #fbbf24;
}

.input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 8px;
  min-width: 0;
  flex-wrap: wrap;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: transparent;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.waypoint-panel {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 280px;
  max-width: calc(100vw - 40px);
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 2147483647;
  overflow: hidden;
  isolation: isolate;
}

.hidden {
  display: none !important;
}

.toggle-btn {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  z-index: 2147483646;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.toggle-btn:hover {
  background: var(--bg-light);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.toggle-btn.hidden {
  display: none !important;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  user-select: none;
}

#greeting {
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s;
}

.close-btn:hover {
  background: var(--border);
  color: var(--text);
}

.coord-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.coord-status {
  font-size: 12px;
  color: var(--text-dim);
  flex: 1;
}

.refresh-btn {
  background: var(--border);
  border: none;
  color: var(--text);
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.refresh-btn:hover {
  background: var(--accent);
  color: white;
}

.input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 8px;
  min-width: 0;
  flex-wrap: wrap;
}

.coord-input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 12px;
  text-align: center;
  transition: border-color 0.2s;
  min-width: 0;
  max-width: 100%;
}

.coord-input:focus {
  outline: none;
  border-color: var(--accent);
}

.coord-input::placeholder {
  color: var(--text-dim);
}

.action-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  min-width: 0;
  flex-wrap: wrap;
}

.label-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 12px;
  transition: border-color 0.2s;
}

.label-input:focus {
  outline: none;
  border-color: var(--accent);
}

.label-input::placeholder {
  color: var(--text-dim);
}

.save-btn {
  background: var(--success);
  border: none;
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 11px;
}

.save-btn:hover {
  background: #22c55e;
  transform: translateY(-1px);
}

.waypoint-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  position: relative;
  z-index: 999999;
  min-width: 0;
  flex-wrap: wrap;
}

.waypoint-select {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  position: relative;
  z-index: 10;
  max-height: 200px;
  overflow-y: auto;
}

.waypoint-select:focus {
  outline: none;
  border-color: var(--accent);
}

.waypoint-select option {
  background: var(--bg);
  color: var(--text);
  padding: 4px 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.load-btn {
  background: var(--accent);
  border: none;
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 11px;
}

.load-btn:hover {
  background: #3b82f6;
  transform: translateY(-1px);
}

.delete-btn {
  background: var(--danger);
  border: none;
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 11px;
}

.delete-btn:hover {
  background: #ef4444;
  transform: translateY(-1px);
}

.status-message {
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
  min-height: 16px;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.3s;
}

@media (max-width: 400px) {
  .waypoint-panel {
    left: 10px;
    right: 10px;
    width: auto;
    top: 10px;
  }
  
  .input-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .waypoint-row {
    flex-direction: column;
  }
  
  .action-row {
    flex-direction: column;
  }
}