/* ===========================================
   File Upload Component - Direct Upload Support
   =========================================== */

/* File upload dropzone */
.file-upload {
  position: relative;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  background: var(--color-surface);
  transition:
    border-color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
  cursor: pointer;
}

.file-upload:hover {
  border-color: var(--color-border-hover);
  background: var(--color-surface-raised);
}

.file-upload--dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-surface);
  box-shadow: 0 0 0 4px var(--color-primary-glow);
}

.file-upload--uploading {
  pointer-events: none;
  border-color: var(--color-primary);
  border-style: solid;
}

.file-upload--error {
  border-color: var(--color-error);
  background: var(--color-error-surface);
}

.file-upload--success {
  border-color: var(--color-success);
  background: var(--color-success-surface);
}

/* Hidden file input */
.file-upload__input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-upload__input:disabled {
  cursor: not-allowed;
}

/* Placeholder content */
.file-upload__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.file-upload__placeholder--hidden {
  display: none;
}

.file-upload__icon {
  width: 48px;
  height: 48px;
  color: var(--color-text-muted);
  stroke-width: 1.5;
}

.file-upload__title {
  font-weight: var(--font-medium);
  font-size: var(--text-base);
  color: var(--color-text);
  margin: 0;
}

.file-upload__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

.file-upload__limit {
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  margin: 0;
}

/* Selected file display */
.file-upload__selected {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.file-upload__selected--visible {
  display: flex;
}

.file-upload__filename {
  font-weight: var(--font-medium);
  font-size: var(--text-base);
  color: var(--color-text);
  margin: 0;
  word-break: break-all;
}

.file-upload__filesize {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

.file-upload__change {
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-top: var(--spacing-sm);
}

/* Progress bar */
.file-upload__progress {
  display: none;
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--color-surface-raised);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
}

.file-upload__progress--visible {
  display: block;
}

.file-upload__progress-bar-container {
  height: 8px;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.file-upload__progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--duration-normal) var(--ease-out);
  min-width: 0;
  width: var(--progress-width, 0%);
}

.file-upload__progress-text {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
}

.file-upload__progress-percent {
  font-weight: var(--font-medium);
  color: var(--color-text);
}

.file-upload__progress-eta {
  color: var(--color-text-muted);
}

/* Upload status messages */
.file-upload__status {
  display: none;
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  text-align: center;
}

.file-upload__status--visible {
  display: block;
}

.file-upload__status--uploading {
  background: var(--color-primary-surface);
  color: var(--color-primary);
}

.file-upload__status--success {
  background: var(--color-success-surface);
  color: var(--color-success);
}

.file-upload__status--error {
  background: var(--color-error-surface);
  color: var(--color-error);
}

/* Cancel button during upload */
.file-upload__cancel {
  margin-top: var(--spacing-md);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.file-upload__cancel:hover {
  background: var(--color-surface-raised);
  border-color: var(--color-border-hover);
  color: var(--color-text);
}

/* Server path option */
.file-upload__server-path-option {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border-subtle);
}

.file-upload__server-path-option summary {
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.file-upload__server-path-option summary::-webkit-details-marker {
  display: none;
}

.file-upload__server-path-option summary::before {
  content: '';
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m9 18 6-6-6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--duration-fast) var(--ease-spring);
}

.file-upload__server-path-option[open] summary::before {
  transform: rotate(90deg);
}

.file-upload__server-path-content {
  margin-top: var(--spacing-md);
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .file-upload {
    padding: var(--spacing-xl);
  }

  .file-upload__icon {
    width: 40px;
    height: 40px;
  }

  .file-upload__progress-text {
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: center;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .file-upload,
  .file-upload__progress-bar,
  .file-upload__cancel,
  .file-upload__server-path-option summary::before {
    transition: none;
  }
}