/* Upload Toggle Button (Floating) */
.upload-toggle-btn {
  position: fixed;
  top: 80px;
  right: 10px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1001;
  transition: all 0.3s;
  border: none;
  color: white;
  font-size: 24px;
  -webkit-tap-highlight-color: transparent;
}

.upload-toggle-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(102, 126, 234, 0.5);
}

.upload-toggle-btn:active {
  transform: scale(0.95);
}

.upload-toggle-btn.active {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* Upload Panel */
.upload-panel {
  position: fixed;
  top: 80px;
  right: 10px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  width: 320px;
  max-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: top right;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ✅ DEFAULT STATE: HIDDEN */
.upload-panel.collapsed {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8) translateY(-20px);
  pointer-events: none;
}

.upload-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 12px 16px;
  font-weight: bold;
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.upload-header-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.upload-close-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.3s;
  -webkit-tap-highlight-color: transparent;
}

.upload-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.upload-body {
  padding: 16px;
  overflow-y: auto;
  max-height: calc(100vh - 160px);
}

/* Upload Zone */
.upload-zone {
  border: 3px dashed #ccc;
  border-radius: 10px;
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  background: #f9f9f9;
  margin-bottom: 16px;
  -webkit-tap-highlight-color: transparent;
}

.upload-zone:hover {
  border-color: #667eea;
  background: #f0f4ff;
}

.upload-zone.dragover {
  border-color: #667eea;
  background: #e8f0ff;
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.upload-icon {
  font-size: 48px;
  margin-bottom: 10px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.upload-zone p {
  font-size: 14px;
  color: #666;
  margin: 8px 0;
  font-weight: 500;
}

.upload-zone small {
  font-size: 11px;
  color: #999;
}

/* Coordinate System Selector */
.coord-system {
  margin-bottom: 16px;
}

.coord-label {
  font-size: 12px;
  font-weight: bold;
  color: #333;
  margin-bottom: 8px;
  display: block;
}

.coord-options {
  display: flex;
  gap: 8px;
}

.coord-option {
  flex: 1;
  padding: 10px;
  border: 2px solid #ddd;
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 12px;
  background: white;
  -webkit-tap-highlight-color: transparent;
}

.coord-option:hover {
  border-color: #667eea;
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.coord-option.active {
  border-color: #667eea;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-weight: bold;
}

.coord-option-title {
  font-weight: bold;
  margin-bottom: 4px;
}

.coord-option-desc {
  font-size: 10px;
  opacity: 0.8;
}

/* Uploaded Layers List */
.uploaded-layers {
  margin-top: 16px;
}

.uploaded-layers-title {
  font-size: 12px;
  font-weight: bold;
  color: #333;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid #f0f0f0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.uploaded-layer-item {
  background: #f9f9f9;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s;
}

.uploaded-layer-item:hover {
  transform: translateX(-4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.uploaded-layer-item.active {
  border-color: #667eea;
  background: #f0f4ff;
}

.layer-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.layer-info {
  flex: 1;
  min-width: 0;
}

.layer-name {
  font-size: 12px;
  font-weight: bold;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layer-meta {
  font-size: 10px;
  color: #999;
  margin-top: 2px;
}

.layer-actions {
  display: flex;
  gap: 6px;
}

.layer-action-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.3s;
  -webkit-tap-highlight-color: transparent;
}

.layer-action-btn.toggle {
  background: #e0e0e0;
  color: #666;
}

.layer-action-btn.toggle.active {
  background: #4caf50;
  color: white;
}

.layer-action-btn.delete {
  background: #ffebee;
  color: #f44336;
}

.layer-action-btn:hover {
  transform: scale(1.1);
}

.layer-action-btn:active {
  transform: scale(0.95);
}

/* Status Messages */
.upload-status {
  padding: 10px;
  border-radius: 6px;
  font-size: 12px;
  margin-bottom: 12px;
  line-height: 1.4;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.upload-status.success {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #4caf50;
}

.upload-status.error {
  background: #ffebee;
  color: #c62828;
  border: 1px solid #f44336;
}

.upload-status.warning {
  background: #fff3e0;
  color: #e65100;
  border: 1px solid #ff9800;
}

.upload-status.info {
  background: #e3f2fd;
  color: #1565c0;
  border: 1px solid #2196f3;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .upload-panel {
    width: calc(100vw - 20px);
    max-width: 400px;
  }

  .upload-toggle-btn {
    width: 45px;
    height: 45px;
    font-size: 20px;
  }

  .coord-options {
    flex-direction: column;
  }

  .coord-option {
    padding: 12px;
  }
}

@media (max-width: 480px) {
  .upload-panel {
    top: 70px;
    right: 5px;
    left: 5px;
    width: auto;
  }

  .upload-toggle-btn {
    top: 70px;
    right: 5px;
  }

  .upload-zone {
    padding: 20px 15px;
  }

  .upload-icon {
    font-size: 36px;
  }
}

/* Smooth Transitions */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}