* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background-color: #000000;
}

/* Hero Section */
.hero {
    background-color: #000000;
    padding: 40px 20px;
    text-align: center;
}

.hero-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.3;
}

.video-container {
    position: relative;
    max-width: 640px;
    margin: 0 auto 30px;
    border-radius: 8px;
    overflow: hidden;
    background-color: #1a1a1a;
}

.video-container video {
    width: 100%;
    display: block;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(220, 38, 38, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.video-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.play-button {
    text-align: center;
    color: white;
}

.play-icon {
    font-size: 48px;
    margin-bottom: 10px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.play-button p {
    font-size: 18px;
    font-weight: 600;
    margin: 5px 0;
}

.unmute-text {
    font-size: 16px;
    font-weight: 400;
}

.hero-subtitle {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.4;
    max-width: 800px;
    margin: 0 auto;
}

/* Platform Section */
.plataforma {
    background-color: #f5f5f5;
    padding: 60px 20px;
    text-align: center;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 40px;
}

.platform-image {
    max-width: 900px;
    margin: 0 auto;
}

.platform-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.additional-images {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.additional-images img {
    max-width: 100%;
    width: 300px; /* Adjust as needed */
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* Offer Section */
.offer {
    background-color: #000000;
    padding: 60px 20px;
    text-align: center;
}

.offer-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 40px;
}

.offer-box {
    background-color: #1a1a1a;
    border-radius: 12px;
    padding: 40px 20px;
    max-width: 600px;
    margin: 0 auto 30px;
}

.offer-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 16px;
}

.checkmark {
    font-size: 20px;
}

.price-section {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #333;
}

.old-price {
    font-size: 18px;
    margin-bottom: 10px;
}

.strikethrough {
    text-decoration: line-through;
    color: #999;
}

.price-label {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}

.main-price {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.price-highlight {
    color: #00ff00;
}

.payment-method {
    font-size: 16px;
    color: #00ff00;
    margin-top: 10px;
}

.cta-text {
    font-size: 16px;
    margin-bottom: 20px;
}

.cta-button {
    display: inline-block;
    background-color: #00ff00;
    color: #000000;
    font-size: 20px;
    font-weight: 700;
    padding: 18px 50px;
    border-radius: 8px;
    text-decoration: none;
    border: 3px solid #0066ff;
    transition: all 0.3s ease;
    margin-bottom: 30px;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.5);
}

.payment-badges {
    margin-top: 20px;
}

.payment-label {
    font-size: 14px;
    color: #999;
}

/* Teacher Section */
.teacher {
    background-color: #000000;
    padding: 60px 20px;
}

.teacher-content {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: center;
}

.teacher-image {
    max-width: 300px;
    width: 100%;
}

.teacher-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.teacher-text {
    flex: 1;
}

.teacher-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
}

.teacher-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
}

/* Footer */
.footer {
    background-color: #000000;
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid #333;
}

.copyright {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.disclaimer {
    font-size: 12px;
    color: #999;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

/* Responsive Design */
@media (min-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 26px;
    }
    
    .teacher-content {
        flex-direction: row;
        align-items: flex-start;
    }
    
    .teacher-image {
        max-width: 350px;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 30px;
    }
    
    .section-title {
        font-size: 40px;
    }
    
    .offer-title {
        font-size: 36px;
    }
}