/* Reset e Configurações Básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00D9FF;
    --secondary-color: #0088CC;
    --dark-color: #0a0e27;
    --dark-secondary: #151932;
    --dark-tertiary: #1e2339;
    --light-color: #1e2339;
    --text-color: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --accent-gradient: linear-gradient(135deg, #00D9FF 0%, #0088CC 100%);
    --dark-gradient: linear-gradient(135deg, #0a0e27 0%, #151932 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--dark-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header e Navegação */
header {
    background: var(--dark-gradient);
    color: #fff;
    box-shadow: 0 2px 20px rgba(0, 217, 255, 0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.navbar {
    padding: 1rem 0;
}

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

.logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--primary-color);
    color: #fff;
}

/* Hero Section */
.hero {
    background: var(--accent-gradient);
    color: #fff;
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.hero-stats span {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

/* Botões */
.cta-whatsapp,
.btn-test,
.btn-secondary {
    background-color: var(--primary-color);
    color: #fff;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

.cta-whatsapp:hover,
.btn-test:hover {
    background-color: #1fb854;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.btn-secondary {
    background-color: #667eea;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    padding: 0.8rem 2rem;
    font-size: 1rem;
}

.btn-secondary:hover {
    background-color: #5568d3;
    transform: translateY(-2px);
}

/* Seções Gerais */
section {
    padding: 4rem 0;
}

section h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: #fff;
}

section p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* About Section */
.about {
    background-color: var(--dark-secondary);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--dark-tertiary);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 217, 255, 0.2);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-card p {
    text-align: left;
    font-size: 0.95rem;
    margin: 0;
}

/* Test Options */
.test-options {
    background-color: var(--dark-color);
}

.test-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.test-card {
    background: var(--dark-tertiary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    position: relative;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.test-card.featured {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.test-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 217, 255, 0.2);
    border-color: var(--primary-color);
}

.test-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.test-card p {
    text-align: left;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* How It Works */
.how-it-works {
    background-color: var(--dark-secondary);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    background: var(--dark-tertiary);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
}

.step h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.step p {
    text-align: left;
    font-size: 0.95rem;
    margin: 0;
}

/* Content Section */
.content-section {
    background-color: var(--dark-color);
}

.content-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.content-col {
    background: var(--dark-tertiary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.content-col h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.content-col p {
    text-align: left;
    font-size: 0.95rem;
    margin: 0;
}

/* CTA Section */
.cta-section {
    background: var(--accent-gradient);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 50%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-section h2 {
    color: #fff;
}

.cta-section p {
    color: #fff;
    opacity: 0.95;
}

/* Pricing Section */
.pricing {
    background-color: var(--dark-secondary);
}

.price-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.price-card {
    background: var(--dark-tertiary);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    position: relative;
    text-align: center;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.price-card.featured {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.price-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 217, 255, 0.3);
    border-color: var(--primary-color);
}

.price-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.price span {
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 400;
}

.price-card ul {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
}

.price-card li {
    padding: 0.7rem 0;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
    font-size: 0.95rem;
}

.price-card li:last-child {
    border-bottom: none;
}

.price-card button {
    width: 100%;
    margin-top: 1rem;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.price-card button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 217, 255, 0.5);
    background: linear-gradient(135deg, #00E5FF 0%, #0099DD 100%);
}

.price-card button:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(0, 217, 255, 0.3);
}

/* Final CTA */
.final-cta {
    background: var(--dark-gradient);
    color: #fff;
    text-align: center;
    border-top: 2px solid var(--primary-color);
    position: relative;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 217, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.final-cta h2 {
    color: #fff;
}

.final-cta p {
    color: #fff;
    opacity: 0.95;
}

/* Footer */
footer {
    background-color: #050810;
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid rgba(0, 217, 255, 0.1);
}

footer p {
    margin: 0.5rem 0;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    text-decoration: underline;
}

/* POPUP DE PREÇOS */
.popup-overlay {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.popup-content {
    background: var(--dark-tertiary);
    padding: 2.5rem;
    border-radius: 15px;
    max-width: 450px;
    width: 90%;
    text-align: center;
    position: relative;
    animation: slideDown 0.3s ease;
    box-shadow: 0 10px 40px rgba(0, 217, 255, 0.3);
    border: 2px solid var(--primary-color);
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close-popup {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 32px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.close-popup:hover {
    color: #000;
    transform: scale(1.1);
}

.popup-content h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.popup-info {
    margin: 1.5rem 0;
}

.popup-info p {
    font-size: 1.1rem;
    margin: 0.8rem 0;
    color: var(--text-color);
}

.popup-prices {
    background-color: var(--dark-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    border: 1px solid rgba(0, 217, 255, 0.2);
}

.popup-prices h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.4rem;
}

.popup-prices p {
    margin: 0.7rem 0;
    font-size: 1.1rem;
    color: var(--text-color);
}

.popup-prices strong {
    color: var(--primary-color);
    font-weight: 700;
}

.btn-test {
    width: 100%;
    margin-top: 1rem;
    font-size: 1.2rem;
    padding: 1.2rem;
}

/* Compatibility Section */
.compatibility {
    background-color: var(--dark-color);
    text-align: center;
}

.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.device-item {
    background: var(--dark-tertiary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: var(--transition);
}

.device-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(0, 217, 255, 0.2);
}

.device-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

/* Content Catalog Section */
.catalog {
    background-color: var(--dark-secondary);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.catalog-card {
    background: var(--dark-tertiary);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(0, 217, 255, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.catalog-header {
    background: var(--accent-gradient);
    padding: 1.5rem;
    text-align: center;
    color: #fff;
}

.catalog-header h3 {
    margin: 0;
    font-size: 1.4rem;
    color: #fff;
}

.catalog-list {
    padding: 1.5rem;
    list-style: none;
}

.catalog-list li {
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.catalog-list li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 10px;
}

/* Testimonials Section */
.testimonials {
    background-color: var(--dark-color);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: var(--dark-tertiary);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.1);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 4rem;
    color: rgba(0, 217, 255, 0.1);
    font-family: serif;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #fff;
    font-size: 1.2rem;
}

.author-info strong {
    display: block;
    color: #fff;
}

.author-info span {
    font-size: 0.9rem;
    color: var(--primary-color);
}

/* FAQ Section (Accordion) */
.faq {
    background-color: var(--dark-secondary);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--dark-tertiary);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border: 1px solid rgba(0, 217, 255, 0.1);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: #fff;
    transition: background 0.3s;
}

.faq-question:hover {
    background: rgba(0, 217, 255, 0.05);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: transform 0.3s;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: rgba(0, 0, 0, 0.2);
}

.faq-answer p {
    padding: 1.5rem;
    margin: 0;
    color: var(--text-secondary);
    text-align: left;
}

/* SEO / Educational Sections */
.seo-section {
    background-color: var(--dark-tertiary);
    padding: 4rem 0;
    text-align: left;
    border-top: 1px solid rgba(0, 217, 255, 0.05);
}

.seo-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.seo-section h3 {
    color: #fff;
    font-size: 1.4rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
}

.seo-section p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    line-height: 1.8;
}

.seo-section ul {
    list-style: disc;
    margin-left: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.seo-content-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Responsividade - Media Queries (unchanged) */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        display: none;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    section h2 {
        font-size: 1.6rem;
    }

    .features-grid,
    .test-cards,
    .steps,
    .price-cards,
    .content-columns {
        grid-template-columns: 1fr;
    }

    .test-card.featured {
        transform: scale(1);
    }

    .price-card.featured {
        transform: scale(1);
    }

    .popup-content {
        padding: 2rem 1.5rem;
    }

    .popup-content h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.6rem;
    }

    .cta-whatsapp,
    .btn-test {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }

    section {
        padding: 3rem 0;
    }

    .feature-card,
    .test-card,
    .step,
    .price-card {
        padding: 1.5rem;
    }
}

/* Acessibilidade */
a:focus,
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Performance - Lazy Loading */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}