/* 
   AudioTech Portugal - Main Stylesheet
   Author: AudioTech Portugal Team
   Version: 1.0
*/

/* ===== VARIABLES ===== */
:root {
    /* Colors */
    --primary-color: #1A73E8;
    --secondary-color: #FF6D00;
    --dark-color: #333333;
    --light-color: #F5F5F5;
    --white-color: #FFFFFF;
    --gray-color: #777777;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    
    /* Typography */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-normal: 0.5s ease;
    --transition-slow: 0.8s ease;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--body-font);
    color: var(--dark-color);
    line-height: 1.6;
    background-color: var(--white-color);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition-fast);
}

a:hover {
    color: var(--secondary-color);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    font-size: 2.5rem;
}

.section-title:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--secondary-color);
    margin: var(--spacing-sm) auto 0;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    font-family: var(--heading-font);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #0d5bbd;
    color: var(--white-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--white-color);
}

.btn-secondary:hover {
    background-color: #e05e00;
    color: var(--white-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== HEADER ===== */
header {
    background-color: var(--white-color);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: var(--transition-fast);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-md);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 0;
}

.logo span {
    color: var(--secondary-color);
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: var(--spacing-md);
}

nav ul li a {
    color: var(--dark-color);
    font-weight: 600;
    font-family: var(--heading-font);
    position: relative;
}

nav ul li a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-fast);
}

nav ul li a:hover:after,
nav ul li a.active:after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.cart-btn {
    position: relative;
    font-size: 1.2rem;
    color: var(--dark-color);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--secondary-color);
    color: var(--white-color);
    font-size: 0.7rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ===== HERO SECTION ===== */
.hero {
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    padding-right: var(--spacing-lg);
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray-color);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.hero-image {
    flex: 1;
    position: relative;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* ===== BENEFITS SECTION ===== */
.benefits {
    padding: var(--spacing-xl) 0;
    background-color: var(--white-color);
}

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

.benefit-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.8rem;
    color: var(--primary-color);
}

.benefit-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.benefit-card p {
    color: var(--gray-color);
    font-size: 0.95rem;
}

/* ===== PRODUCTS SECTION ===== */
.products {
    padding: var(--spacing-xl) 0;
    background-color: var(--light-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.product-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--secondary-color);
    color: var(--white-color);
    padding: 5px 10px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 1;
}

.product-image {
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
}

.product-image img {
    max-height: 100%;
    transition: var(--transition-normal);
}

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

.product-info {
    padding: var(--spacing-md);
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.product-rating {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    color: #ffc107;
}

.product-rating span {
    color: var(--gray-color);
    margin-left: 5px;
    font-size: 0.9rem;
}

.product-info p {
    color: var(--gray-color);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.product-price {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.old-price {
    font-size: 1rem;
    color: var(--gray-color);
    text-decoration: line-through;
    margin-left: var(--spacing-xs);
}

/* ===== FEATURES SECTION ===== */
.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--white-color);
}

.features .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.features-content {
    flex: 1;
    padding-right: var(--spacing-lg);
}

.features-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.features-list {
    margin-bottom: var(--spacing-md);
}

.features-list li {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
}

.features-list li i {
    color: var(--success-color);
    margin-right: var(--spacing-xs);
    font-size: 1.2rem;
}

.features-image {
    flex: 1;
    text-align: center;
}

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

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    padding: var(--spacing-xl) 0;
    background-color: var(--light-color);
    position: relative;
}

.testimonials-slider {
    display: flex;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.testimonial-card {
    flex: 0 0 100%;
    background-color: var(--white-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.testimonial-rating {
    color: #ffc107;
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    color: var(--dark-color);
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: var(--spacing-sm);
    object-fit: cover;
}

.testimonial-author h4 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

.testimonial-author p {
    margin-bottom: 0;
    color: var(--gray-color);
    font-size: 0.9rem;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.testimonial-prev,
.testimonial-next {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--white-color);
    border: none;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-fast);
}

.testimonial-prev:hover,
.testimonial-next:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}

/* ===== FAQ SECTION ===== */
.faq {
    padding: var(--spacing-xl) 0;
    background-color: var(--white-color);
}

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

.faq-item {
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: var(--transition-fast);
}

.faq-item:hover {
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--white-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h3 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition-fast);
}

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: var(--spacing-sm) var(--spacing-md);
    max-height: 200px;
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--light-color);
}

.about .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.about-image {
    flex: 1;
}

.about-image img {
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
}

.about-content {
    flex: 1;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.about-content p {
    margin-bottom: var(--spacing-sm);
}

/* ===== NEWSLETTER SECTION ===== */
.newsletter {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #0d5bbd 100%);
    color: var(--white-color);
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter-content h2 {
    color: var(--white-color);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.newsletter-content p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1rem;
}

.newsletter-privacy {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--spacing-xl) 0;
    background-color: var(--white-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: flex-start;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
    margin-top: 5px;
}

.contact-item h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.2rem;
}

.contact-item p {
    margin-bottom: 0;
    color: var(--gray-color);
}

.contact-social h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    transition: var(--transition-fast);
}

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

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

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group:nth-child(3),
.form-group:nth-child(4) {
    grid-column: 1 / 3;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius-md);
    font-family: var(--body-font);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}

.contact-form button {
    grid-column: 1 / 3;
    justify-self: start;
}

/* ===== CTA SECTION ===== */
.cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #e05e00 100%);
    color: var(--white-color);
    text-align: center;
}

.cta h2 {
    color: var(--white-color);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== FOOTER ===== */
footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding-top: var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-about h3 {
    color: var(--white-color);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
}

.footer-about span {
    color: var(--secondary-color);
}

.footer-about p {
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white-color);
    transition: var(--transition-fast);
}

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

.footer-links h3 {
    color: var(--white-color);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

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

.footer-links ul li a {
    color: var(--light-color);
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links ul li a:hover {
    opacity: 1;
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-contact h3 {
    color: var(--white-color);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.footer-contact p {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
}

.footer-contact p i {
    margin-right: var(--spacing-xs);
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    margin-bottom: 0;
    opacity: 0.7;
    font-size: 0.9rem;
}

.payment-methods {
    display: flex;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
}

/* ===== COOKIE CONSENT ===== */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--white-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) 0;
    z-index: 999;
    display: none;
}

.cookie-consent .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cookie-consent p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    color: var(--white-color);
    transform: translateY(-5px);
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1200px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features .container,
    .about .container {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .features-content,
    .about-content {
        padding-right: 0;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 80px);
        background-color: var(--white-color);
        box-shadow: var(--shadow-md);
        transition: var(--transition-fast);
        z-index: 999;
    }
    
    nav.active {
        left: 0;
    }
    
    nav ul {
        flex-direction: column;
        padding: var(--spacing-md);
    }
    
    nav ul li {
        margin-left: 0;
        margin-bottom: var(--spacing-sm);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form form {
        grid-template-columns: 1fr;
    }
    
    .form-group:nth-child(3),
    .form-group:nth-child(4) {
        grid-column: 1;
    }
    
    .contact-form button {
        grid-column: 1;
    }
    
    .cookie-consent .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 576px) {
    .benefits-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
    }
}
