/* 
   FitSense - Product Page Styles
   Modern, minimalist design for product showcase
*/

/* --- Product Hero Section --- */
.product-hero {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
    overflow: hidden;
}

.product-hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}
.device-price del {
  color: #888; /* Grigio per il prezzo vecchio */
  margin-right: 10px;
  font-size: 0.9em;
}

.sale-price {
  color: #e63946; /* Rosso per attirare l'attenzione */
  font-weight: bold;
  font-size: 1.2em;
}
.product-badge {
    display: inline-block;
    background-color: var(--primary-light);
    color: var(--primary-dark);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.35em 1em;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-m);
}

.product-hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-s);
    color: var(--text);
}

.product-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
}

.product-price-section {
    margin-bottom: var(--spacing-xl);
}

.product-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-xs);
}

.product-price-info {
    color: var(--text-light);
    font-size: 0.875rem;
}

.product-cta {
    display: flex;
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-xl);
}

.product-features-preview {
    display: flex;
    gap: var(--spacing-xl);
}

.preview-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-s);
}

.preview-feature i {
    color: var(--primary);
    font-size: 1.25rem;
}

.product-hero-image img {
    width: 100%;
    border-radius: var(--radius-l);
    box-shadow: var(--shadow-md);
    transition: transform 0.5s ease;
}

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

/* --- Benefits Section --- */
.product-benefits {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background);
}

.product-benefits h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-l);
}

.benefit-card {
    background-color: var(--card-bg);
    border-radius: var(--radius-m);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-l);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-m);
}

.benefit-card h3 {
    margin-bottom: var(--spacing-s);
    font-size: 1.25rem;
}

.benefit-card p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* --- How It Works Section --- */
.how-it-works {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
}

.how-it-works h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: var(--spacing-l);
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.step-content h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.step-content p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* --- Technology Section --- */
.technology {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background);
}

.technology .container {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
}

.specs-nav {
    display: flex;
    gap: var(--spacing-s);
    margin-bottom: var(--spacing-l);
    flex-wrap: wrap;
}

.spec-tab {
    padding: var(--spacing-s) var(--spacing-l);
    background-color: var(--background-light);
    border: none;
    border-radius: var(--radius-s);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.spec-tab:hover {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

.spec-tab.active {
    background-color: var(--primary);
    color: white;
}

.specs-content {
    position: relative;
    min-height: 300px;
}

.spec-panel {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    width: 100%;
}

.spec-panel.active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-l);
}

.spec-item h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.spec-item p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.technology-image img {
    width: 100%;
    border-radius: var(--radius-l);
    box-shadow: var(--shadow-md);
}

/* --- Exercises Support Section --- */
.exercises-support {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
}

.exercises-support h2 {
    text-align: center;
    margin-bottom: var(--spacing-s);
}

.exercises-support .section-intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.exercise-categories {
    display: flex;
    justify-content: center;
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.category {
    padding: var(--spacing-m) var(--spacing-l);
    background-color: var(--background);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category:hover {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

.category.active {
    background-color: var(--primary);
    color: white;
}

.exercises-container {
    position: relative;
    min-height: 400px;
}

.exercise-list {
    position: absolute;
    top: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-m);
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease;
}

.exercise-list.active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.exercise-item {
    background-color: var(--card-bg);
    border-radius: var(--radius-m);
    padding: var(--spacing-l);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: var(--spacing-m);
    align-items: flex-start;
    transition: transform 0.3s ease;
}

.exercise-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.exercise-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-m);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.exercise-details h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.exercise-details p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.exercises-note {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: 0.875rem;
    color: var(--text-light);
    font-style: italic;
}

/* --- Reviews Section --- */
.product-reviews {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background);
}

.product-reviews h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.reviews-overview {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    align-items: center;
    background-color: var(--card-bg);
    padding: var(--spacing-l);
    border-radius: var(--radius-l);
    box-shadow: var(--shadow-sm);
}

.rating-summary {
    flex: 1;
    text-align: center;
    padding-right: var(--spacing-xl);
    border-right: 1px solid var(--border);
}

.rating-big {
    font-size: 4rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stars {
    color: gold;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-s);
}

.rating-summary p {
    margin-bottom: 0;
    color: var(--text-light);
    font-size: 0.875rem;
}

.rating-bars {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-s);
}

.rating-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-m);
}

.rating-bar span {
    min-width: 60px;
    font-size: 0.875rem;
    color: var(--text-light);
}

.rating-bar span:last-child {
    min-width: 40px;
    text-align: right;
}

.bar-container {
    flex: 1;
    height: 8px;
    background-color: var(--background-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.bar {
    height: 100%;
    background-color: var(--primary);
    border-radius: var(--radius-full);
}

.reviews-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-l);
    margin-bottom: var(--spacing-xl);
}

.review-card {
    background-color: var(--card-bg);
    border-radius: var(--radius-m);
    padding: var(--spacing-l);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.review-header {
    display: flex;
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-m);
}

.review-header img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.review-header h4 {
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.review-stars {
    color: gold;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.review-date {
    color: var(--text-light);
    font-size: 0.75rem;
}

.review-text {
    color: var(--text);
    margin-bottom: var(--spacing-m);
    font-size: 0.925rem;
    line-height: 1.5;
}

.review-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.review-tags span {
    font-size: 0.75rem;
    background-color: var(--background-light);
    padding: 0.25em 0.75em;
    border-radius: var(--radius-full);
    color: var(--text-light);
}

.review-cta {
    text-align: center;
}

/* --- What's in the Box --- */
.whats-in-box {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
}

.whats-in-box h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.box-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.box-image img {
    width: 100%;
    border-radius: var(--radius-l);
    box-shadow: var(--shadow-md);
}

.box-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-l);
}

.box-item {
    display: flex;
    gap: var(--spacing-m);
    align-items: flex-start;
}

.item-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: var(--radius-m);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.item-details h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.item-details p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* --- Shop Section --- */
.shop {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background);
}

.shop h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.color-options {
    display: flex;
    justify-content: center;
    gap: var(--spacing-l);
    margin-bottom: var(--spacing-xl);
}

.color-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.color-option:hover {
    transform: translateY(-5px);
}

.color-option.active .color-swatch {
    border: 2px solid var(--primary);
    transform: scale(1.1);
}

.color-swatch {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.color-option span {
    font-size: 0.875rem;
    color: var(--text);
}

.product-buy-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    background-color: var(--card-bg);
    border-radius: var(--radius-l);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.product-image img {
    width: 100%;
    border-radius: var(--radius-m);
    transition: transform 0.3s ease;
}

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

.product-buy-info h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
}

.product-variant {
    color: var(--text-light);
    margin-bottom: var(--spacing-m);
}

.product-buy-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-s);
}

.product-availability {
    margin-bottom: var(--spacing-m);
    font-size: 0.875rem;
}

.in-stock {
    color: var(--primary);
    font-weight: 500;
}

.delivery-info {
    background-color: var(--background-light);
    padding: var(--spacing-m);
    border-radius: var(--radius-m);
    display: flex;
    align-items: center;
    gap: var(--spacing-s);
    margin-bottom: var(--spacing-l);
    font-size: 0.875rem;
    color: var(--text-light);
}

.delivery-info i {
    color: var(--primary);
}

.quantity-selector {
    margin-bottom: var(--spacing-l);
}

.quantity-selector label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.quantity-wrapper {
    display: flex;
    align-items: center;
}

.quantity-btn {
    width: 40px;
    height: 40px;
    background-color: var(--background-light);
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.quantity-btn:first-child {
    border-radius: var(--radius-s) 0 0 var(--radius-s);
}

.quantity-btn:last-child {
    border-radius: 0 var(--radius-s) var(--radius-s) 0;
}

.quantity-btn:hover {
    background-color: var(--border);
}

#quantity {
    width: 50px;
    height: 40px;
    border: 1px solid var(--background-light);
    text-align: center;
    font-size: 1rem;
    -moz-appearance: textfield;
}

#quantity::-webkit-outer-spin-button,
#quantity::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.buy-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-l);
}

.btn-accent {
    background-color: var(--accent);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-accent:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-btn);
}

.payment-options {
    font-size: 0.875rem;
    color: var(--text-light);
}

.payment-icons {
    display: flex;
    gap: var(--spacing-s);
    flex-wrap: wrap;
    margin-top: var(--spacing-xs);
}

.payment-icons i {
    font-size: 1.5rem;
    color: var(--text);
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.payment-icons i:hover {
    opacity: 1;
}

.guarantees {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-l);
    margin-top: var(--spacing-xl);
}

.guarantee {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.guarantee i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-s);
}

.guarantee h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.guarantee p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* --- FAQs Section --- */
.faqs {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
}

.faqs h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--card-bg);
    border-radius: var(--radius-m);
    overflow: hidden;
    margin-bottom: var(--spacing-m);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: var(--spacing-l);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.faq-question h4 {
    margin: 0;
    font-size: 1.1rem;
}

.toggle-icon {
    color: var(--primary);
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 var(--spacing-l);
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 var(--spacing-l) var(--spacing-l);
    max-height: 1000px;
}

.faq-item.active .toggle-icon i {
    transform: rotate(180deg);
}



/* --- Footer --- */
footer {
    background-color: var(--background-dark);
    padding: var(--spacing-xxl) 0 var(--spacing-m);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
}

.footer-brand h3 {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-m);
}

.footer-brand p {
    margin-bottom: var(--spacing-l);
}

.footer-social {
    display: flex;
    gap: var(--spacing-m);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--background);
    color: var(--primary);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.footer-links-column h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-m);
}

.footer-links-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links-column ul li {
    margin-bottom: var(--spacing-s);
}

.footer-links-column ul li a {
    color: var(--text-light);
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.footer-links-column ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-m);
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
    color: var(--text-lighter);
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-l);
}

.footer-bottom-links a {
    color: var(--text-lighter);
}

.footer-bottom-links a:hover {
    color: var(--primary);
}




/* --- Responsive Styles --- */
@media screen and (max-width: 1024px) {
    .product-hero .container,
    .technology .container,
    .box-content,
    .product-buy-card {
        grid-template-columns: 1fr;
    }
    
    .technology-image {
        order: -1;
    }
    
    .spec-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-overview {
        flex-direction: column;
    }
    
    .rating-summary {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding-right: 0;
        padding-bottom: var(--spacing-l);
        margin-bottom: var(--spacing-l);
    }
}

@media screen and (max-width: 768px) {
    .product-hero h1 {
        font-size: 2.5rem;
    }
    
    .product-price {
        font-size: 2.5rem;
    }
    
    .product-cta {
        flex-direction: column;
    }
    
    .product-features-preview {
        flex-direction: column;
        gap: var(--spacing-s);
    }
    
    .exercise-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .buy-buttons {
        grid-template-columns: 1fr;
    }
    
    nav ul {
        display: none;
    }
    
    header nav.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--background);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-l);
        z-index: 100;
    }
    
    header nav.active ul {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
    }
    
    header nav.active ul li {
        margin: var(--spacing-s) 0;
        width: 100%;
        text-align: center;
    }
    
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 20px;
        cursor: pointer;
    }
    
    .mobile-menu-toggle span {
        height: 2px;
        width: 100%;
        background-color: var(--text);
        transition: transform 0.3s ease;
    }
    
    .mobile-menu-toggle.active span:first-child {
        transform: translateY(9px) rotate(45deg);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:last-child {
        transform: translateY(-9px) rotate(-45deg);
    }
}