/* FileUpload Component Styles */
.terra-file-upload-wrapper {
  width: 100%;
}

.terra-file-upload {
  position: relative;
  border: 2px dashed var(--color-mint-light);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(168, 230, 163, 0.05) 0%, rgba(232, 245, 232, 0.1) 100%);
  transition: all var(--transition-normal);
  cursor: pointer;
  overflow: hidden;
}

.terra-file-upload:hover:not(.terra-file-upload--disabled) {
  border-color: var(--color-nature-green);
  background: rgba(168, 230, 163, 0.1);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.terra-file-upload__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.terra-file-upload__content {
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.terra-file-upload__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  transition: transform var(--transition-normal);
}

.terra-file-upload:hover .terra-file-upload__icon {
  transform: scale(1.1);
}

.terra-file-upload__text {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.terra-file-upload__primary {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-forest-primary);
  margin: 0;
}

.terra-file-upload__secondary {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin: 0;
  line-height: 1.4;
}

/* Upload Variants */
.terra-file-upload--default {
  /* Default styling already applied */
}

.terra-file-upload--compact {
  .terra-file-upload__content {
    padding: var(--spacing-lg);
  }
  
  .terra-file-upload__icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
  }
  
  .terra-file-upload__primary {
    font-size: var(--font-size-base);
  }
}

.terra-file-upload--minimal {
  border-style: solid;
  border-width: 1px;
  background: var(--color-white);
  
  .terra-file-upload__content {
    padding: var(--spacing-lg);
    flex-direction: row;
    text-align: left;
  }
  
  .terra-file-upload__icon {
    font-size: 1.5rem;
    margin-bottom: 0;
  }
}

/* Upload States */
.terra-file-upload--drag-active {
  border-color: var(--color-nature-green);
  background: rgba(168, 230, 163, 0.2);
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.terra-file-upload--drag-active .terra-file-upload__icon {
  transform: scale(1.2);
  animation: bounce 0.6s ease-in-out;
}

.terra-file-upload--has-files {
  border-color: var(--color-success-green);
  background: rgba(76, 175, 80, 0.05);
}

.terra-file-upload--disabled {
  border-color: var(--color-gray-200);
  background: var(--color-gray-50);
  cursor: not-allowed;
  opacity: 0.6;
}

.terra-file-upload--disabled .terra-file-upload__primary {
  color: var(--color-gray-400);
}

.terra-file-upload--disabled .terra-file-upload__secondary {
  color: var(--color-gray-300);
}

/* File List */
.terra-file-upload__files {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(74, 124, 35, 0.1);
}

.terra-file-upload__files-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-forest-primary);
  margin: 0 0 var(--spacing-md) 0;
}

.terra-file-upload__files-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.terra-file-upload__file {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--color-eco-soft);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-mint-light);
  transition: all var(--transition-normal);
}

.terra-file-upload__file:hover {
  background: var(--color-eco-lighter);
  transform: translateX(4px);
}

.terra-file-upload__file-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  flex: 1;
  min-width: 0;
}

.terra-file-upload__file-name {
  font-weight: var(--font-weight-medium);
  color: var(--color-forest-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.terra-file-upload__file-size {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.terra-file-upload__file-remove {
  background: var(--color-warning-red);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.terra-file-upload__file-remove:hover {
  background: #d32f2f;
  transform: scale(1.1);
}

.terra-file-upload__file-remove:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(244, 67, 54, 0.3);
}

/* Progress Bar (for future enhancement) */
.terra-file-upload__progress {
  width: 100%;
  height: 4px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: var(--spacing-xs);
}

.terra-file-upload__progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-success-green) 0%, var(--color-nature-green) 100%);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

/* Responsive Design */
@media (max-width: 640px) {
  .terra-file-upload__content {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .terra-file-upload__icon {
    font-size: 2.5rem;
  }
  
  .terra-file-upload__primary {
    font-size: var(--font-size-base);
  }
  
  .terra-file-upload__secondary {
    font-size: var(--font-size-xs);
  }
  
  .terra-file-upload--minimal .terra-file-upload__content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .terra-file-upload__file {
    padding: var(--spacing-sm);
  }
  
  .terra-file-upload__file-info {
    gap: var(--spacing-xs);
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .terra-file-upload {
    border-width: 3px;
    border-color: var(--color-forest-primary);
  }
  
  .terra-file-upload--drag-active {
    border-color: var(--color-forest-deep);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .terra-file-upload,
  .terra-file-upload__icon,
  .terra-file-upload__file,
  .terra-file-upload__file-remove {
    transition: none;
  }
  
  .terra-file-upload:hover,
  .terra-file-upload--drag-active {
    transform: none;
  }
  
  .terra-file-upload--drag-active .terra-file-upload__icon {
    animation: none;
    transform: none;
  }
}

/* Focus States for Accessibility */
.terra-file-upload:focus-within {
  outline: 2px solid var(--color-nature-green);
  outline-offset: 2px;
}

/* Animation for drag active state */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0) scale(1.2);
  }
  40%, 43% {
    transform: translate3d(0, -8px, 0) scale(1.2);
  }
  70% {
    transform: translate3d(0, -4px, 0) scale(1.2);
  }
  90% {
    transform: translate3d(0, -2px, 0) scale(1.2);
  }
}