/* Page specific styling overrides for contribute.html */
.contribute-hero {
  background:
    radial-gradient(ellipse at 15% 45%, var(--color-primary-muted) 0%, transparent 65%),
    radial-gradient(ellipse at 85% 15%, var(--color-secondary-muted) 0%, transparent 55%),
    var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-12) 0;
}

/* File Drag and Drop Zone overrides */
.upload-dropzone {
  position: relative;
  border: 2.5px dashed var(--color-border-strong);
  border-radius: var(--radius-xl);
  background-color: var(--color-bg-card);
  padding: var(--space-8);
  transition: var(--transition-base);
  cursor: pointer;
}

.upload-dropzone:hover, .upload-dropzone.dragover {
  border-color: var(--color-primary-dark);
  background-color: var(--color-primary-muted);
}

.upload-file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: var(--z-raised);
}

/* Image preview containers */
.upload-zone-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: var(--z-dropdown);
}

.upload-zone-preview img {
  max-width: 160px;
  max-height: 220px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.hide {
  display: none !important;
}

.input-error {
  border-color: var(--color-error) !important;
  box-shadow: 0 0 0 3px rgba(224, 92, 92, 0.15) !important;
}

/* Form spinner simulation classes */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  border: 2px solid transparent;
  border-top-color: var(--color-text-inverse);
  border-radius: 50%;
  animation: button-loading-spin 600ms linear infinite;
}

@keyframes button-loading-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}