/* ============================================
   Image Uploader Component
   Mobile-first, responsive, clean UX
   ============================================ */

.image-uploader {
    width: 100%;
}

/* --- Drop Zone --- */
.upload-dropzone {
    position: relative;
    border: 2px dashed var(--border-color, #dee2e6);
    border-radius: 12px;
    padding: 1.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #fff;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-dropzone:active,
.upload-dropzone.dragover {
    border-color: var(--primary-hover, #F0A04B);
    background: var(--primary-light, #fef8e9);
    transform: scale(0.99);
}

.upload-icon {
    font-size: 2rem;
    color: var(--primary-hover, #F0A04B);
    margin-bottom: 0.4rem;
}

.upload-text {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary, #333);
    margin-bottom: 0.2rem;
}

.upload-hint {
    font-size: 0.75rem;
    color: var(--text-secondary, #6c757d);
    margin-bottom: 0;
}

/* --- Action Buttons --- */
.upload-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.upload-counter {
    font-size: 0.8rem;
}

/* --- Preview Grid --- */
.upload-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.upload-preview-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: #f0f0f0;
    aspect-ratio: 1;
    animation: fadeInUp 0.3s ease;
}

.upload-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Upload progress overlay */
.upload-preview-item .upload-progress {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.8rem;
}

.upload-preview-item .upload-progress .spinner-border {
    width: 1.5rem;
    height: 1.5rem;
}

/* Success/Error badge */
.upload-preview-item .upload-status {
    position: absolute;
    top: 4px;
    left: 4px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: #fff;
}

.upload-status.success {
    background: var(--success-color, #28a745);
}

.upload-status.error {
    background: var(--danger-color, #dc3545);
}

/* Remove button */
.upload-preview-item .upload-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    border: none;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s;
    padding: 0;
    line-height: 1;
}

.upload-preview-item .upload-remove:hover {
    background: var(--danger-color, #dc3545);
}

/* --- Error Messages --- */
.upload-errors .upload-error-msg {
    font-size: 0.8rem;
    color: var(--danger-color, #dc3545);
    padding: 0.25rem 0;
    animation: fadeInUp 0.2s ease;
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive
   ============================================ */

/* มือถือเล็ก */
@media (max-width: 400px) {
    .upload-preview-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .upload-dropzone {
        padding: 1rem 0.75rem;
        min-height: 100px;
    }

    .upload-icon {
        font-size: 1.6rem;
    }

    .upload-text {
        font-size: 0.85rem;
    }
}

/* แท็บเล็ตขึ้นไป */
@media (min-width: 768px) {
    .upload-preview-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Desktop */
@media (min-width: 992px) {
    .upload-preview-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    .upload-dropzone {
        padding: 2rem 1.5rem;
    }
}