/* UI Components */

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    text-align: center;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--gradient-accent);
    border: none;
    color: #111;
    box-shadow: 0 2px 4px rgba(255, 153, 0, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #ffb700 0%, #ffc429 100%);
    box-shadow: 0 4px 8px rgba(255, 153, 0, 0.3);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: #fff;
    border-color: #adb1b8 #a2a6ac #8d9096;
    color: #111;
    box-shadow: 0 2px 5px 0 rgba(213,217,217,.5);
}

.btn-secondary:hover {
    background-color: #f7fafa;
}

.btn-accent {
    background-color: var(--amazon-orange);
    color: white;
}

/* Product Card */
.product-card {
    background: white;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    height: 100%;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: contain;
    margin-bottom: var(--space-4);
    transition: transform 0.3s ease;
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.product-title {
    font-size: var(--fs-sm);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: var(--fs-xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.price-symbol { font-size: var(--fs-sm); vertical-align: top; }

.product-rating {
    color: var(--amazon-orange);
    font-size: var(--fs-sm);
    margin-bottom: var(--space-2);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-4);
}

.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 1024px) {
    .grid-cols-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .grid-cols-4, .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .grid-cols-4, .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

/* Spinner Loader */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(0, 0, 0, 0.15);
    border-radius: 50%;
    border-top-color: var(--amazon-orange, #febd69);
    animation: spin 0.8s linear infinite;
    vertical-align: middle;
    margin-right: 5px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}