/* ==========================================================================
   File Upload Component
   ========================================================================== */

.file-upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    border: 2px dashed var(--color-border, #dee2e6);
    border-radius: 0.5rem;
    background: var(--color-surface-subtle, #f8f9fa);
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
    min-height: var(--input-min-height, 44px);
    text-align: center;
}

.file-upload-zone:hover {
    border-color: var(--color-focus-ring, #6431da);
    background: color-mix(in srgb, var(--color-focus-ring, #6431da) 5%, transparent);
}

.file-upload-zone.is-dragging {
    border-color: var(--color-focus-ring, #6431da);
    background: color-mix(in srgb, var(--color-focus-ring, #6431da) 8%, transparent);
    border-style: solid;
}

.file-upload-zone.is-invalid {
    border-color: var(--color-error, #d9002b);
}

.file-upload__icon {
    font-size: 1.5rem;
    color: var(--color-text-muted, #9ca3af);
    margin-bottom: 0.5rem;
}

.file-upload__text {
    font-size: 0.875rem;
    color: var(--color-text-muted, #9ca3af);
}

.file-upload__text strong {
    color: var(--brand-primary, #46062b);
}

.file-upload__hint {
    font-size: 0.75rem;
    color: var(--color-text-muted, #9ca3af);
    margin-top: 0.25rem;
}

/* File preview list */
.file-upload__preview {
    list-style: none;
    margin: 0.5rem 0 0;
    padding: 0;
}

.file-upload__preview-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.375rem 0.5rem;
    background: var(--color-card-bg, #fff);
    border: 1px solid var(--color-border, #dee2e6);
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    margin-bottom: 0.25rem;
}

.file-upload__preview-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    flex: 1;
}

.file-upload__preview-size {
    color: var(--color-text-muted, #9ca3af);
    font-size: 0.75rem;
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.file-upload__preview-remove {
    background: none;
    border: none;
    color: var(--color-error, #d9002b);
    cursor: pointer;
    padding: 0 0.25rem;
    font-size: 1rem;
    line-height: 1;
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.file-upload__preview-remove:hover {
    opacity: 0.7;
}

/* Error message */
.file-upload__error {
    font-size: 0.8125rem;
    color: var(--color-error, #d9002b);
    margin-top: 0.25rem;
}