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

:root {
    --primary-color: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8B5F;
    --secondary-color: #2C3E50;
    --secondary-light: #34495E;
    --accent-color: #27AE60;
    --background-color: #FFFFFF;
    --surface-color: #F8F9FA;
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --text-light: #BDC3C7;
    --border-color: #E9ECEF;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 10px 40px rgba(0,0,0,0.2);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    overflow-x: hidden;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-light);
}

.navbar {
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0;
}

.tagline {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.cta-button {
    padding: 10px 20px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-secondary);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%23FF6B35" stop-opacity="0.3"/><stop offset="100%" stop-color="%23FF6B35" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="200" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="300" cy="800" r="250" fill="url(%23a)"/></svg>') no-repeat center center;
    background-size: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 62, 80, 0.8);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.highlight {
    color: var(--primary-color);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    color: #ECF0F1;
    font-weight: 400;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: #ECF0F1;
}

.feature-item i {
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Social Proof */
.social-proof {
    padding: 4rem 0;
    background: var(--surface-color);
}

.social-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Benefits */
.benefits {
    padding: 6rem 0;
    background: white;
}

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

.benefit-card {
    padding: 2.5rem 2rem;
    background: var(--surface-color);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.benefit-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.benefit-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Pricing */
.pricing {
    padding: 6rem 0;
    background: var(--surface-color);
}

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

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.pricing-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-heavy);
}

.pricing-card.featured:hover {
    transform: translateY(-10px) scale(1.07);
}

.plan-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.plan-header {
    margin-bottom: 2rem;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.plan-price {
    margin-bottom: 1.5rem;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
}

.period {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.plan-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.plan-features li {
    padding: 0.5rem 0;
    color: var(--text-primary);
    font-weight: 500;
}

.plan-button {
    display: block;
    width: 100%;
    padding: 15px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.plan-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Channels */
.channels {
    padding: 6rem 0;
    background: white;
}

.channels-categories {
    margin-top: 3rem;
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-button {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-button.active,
.tab-button:hover {
    background: var(--primary-color);
    color: white;
}

.channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.channel-item {
    padding: 1.5rem 1rem;
    background: var(--surface-color);
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

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

.channel-logo {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
}

.channel-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.channels-cta {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--surface-color);
    border-radius: 20px;
}

/* How It Works */
.how-it-works {
    padding: 6rem 0;
    background: var(--surface-color);
}

.steps-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.step-item {
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.step-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.step-connector {
    width: 100px;
    height: 2px;
    background: var(--primary-color);
    position: relative;
}

.step-connector::after {
    content: '→';
    position: absolute;
    right: -10px;
    top: -10px;
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Testimonials */
.testimonials {
    padding: 6rem 0;
    background: white;
}

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

.testimonial-card {
    padding: 2.5rem 2rem;
    background: var(--surface-color);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

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

.testimonial-content {
    margin-bottom: 2rem;
}

.testimonial-content p {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-style: italic;
    line-height: 1.6;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.author-rating {
    color: #F39C12;
    font-size: 1.2rem;
}

/* FAQ */
.faq {
    padding: 6rem 0;
    background: var(--surface-color);
}

.faq-container {
    max-width: 800px;
    margin: 3rem auto 0;
}

.faq-item {
    background: white;
    border-radius: 15px;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: var(--surface-color);
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
    transition: transform 0.3s ease;
}

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

.faq-answer {
    padding: 0 2rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 2rem 1.5rem;
    max-height: 200px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Guarantees */
.guarantees {
    padding: 6rem 0;
    background: white;
}

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

.guarantee-card {
    padding: 2.5rem 2rem;
    background: var(--surface-color);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

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

.guarantee-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.guarantee-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.guarantee-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* About */
.about {
    padding: 6rem 0;
    background: var(--surface-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.about-text {
    max-width: 500px;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: 2rem;
}

.about-text .section-title::after {
    left: 0;
    transform: none;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.about-stat {
    text-align: center;
    padding: 1.5rem 1rem;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
}

.about-stat h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.about-stat p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-img-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: var(--gradient-secondary);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.2rem;
    color: #ECF0F1;
    margin-bottom: 3rem;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.cta-guarantee {
    color: #ECF0F1;
    font-weight: 500;
}

/* Contact */
.contact {
    padding: 6rem 0;
    background: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--surface-color);
    border-radius: 15px;
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-link:hover {
    text-decoration: underline;
}

.contact-form {
    background: var(--surface-color);
    padding: 2.5rem;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Devices */
.devices {
    padding: 6rem 0;
    background: var(--surface-color);
}

.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.device-item {
    padding: 2rem 1.5rem;
    background: white;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-light);
}

.device-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

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

.device-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.device-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Blog */
.blog {
    padding: 6rem 0;
    background: white;
}

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

.blog-card {
    background: var(--surface-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-light);
}

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

.blog-image {
    height: 200px;
    overflow: hidden;
}

.blog-img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.blog-content {
    padding: 2rem;
}

.blog-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.blog-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.blog-meta {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1.5rem;
}

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

.footer-subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
}

.footer-desc {
    color: #BDC3C7;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.footer-contact p {
    color: #BDC3C7;
    margin-bottom: 0.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #BDC3C7;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

.footer-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.whatsapp-icon {
    font-size: 1.2rem;
}

.footer-hours {
    color: #BDC3C7;
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid #34495E;
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    color: #BDC3C7;
    text-decoration: none;
    font-size: 0.9rem;
}

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

/* Floating WhatsApp */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: #25D366;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: var(--shadow-heavy);
    font-weight: 600;
    transition: all 0.3s ease;
}

.whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(37, 211, 102, 0.4);
}

.whatsapp-text {
    font-size: 0.9rem;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.back-to-top-btn {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-medium);
}

.back-to-top-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-features {
        gap: 1.5rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .social-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: none;
    }

    .steps-container {
        flex-direction: column;
        gap: 3rem;
    }

    .step-connector {
        transform: rotate(90deg);
        width: 50px;
    }

    .step-connector::after {
        content: '↓';
        right: 20px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-text .section-title {
        text-align: center;
    }

    .about-text .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .cta-title {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .section-title {
        font-size: 1.8rem;
    }

    .social-stats {
        grid-template-columns: 1fr;
    }

    .category-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 10px;
    }

    .tab-button {
        white-space: nowrap;
        flex-shrink: 0;
    }

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

    .about-stats {
        grid-template-columns: 1fr;
    }

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

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .floating-whatsapp {
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-text {
        display: none;
    }

    .back-to-top {
        bottom: 80px;
        right: 20px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}