/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-text h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 800;
}

.hero-text h2 {
    font-size: 32px;
    color: #64ffda;
    margin-bottom: 30px;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-group {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cta-button {
    display: inline-block;
    background: #64ffda;
    color: #1a237e;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
}

.launch-date {
    font-size: 16px;
    opacity: 0.8;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 30px rgba(0,0,0,0.2));
    transform: perspective(1000px) rotateY(-15deg);
}

/* Social Proof Bar */
.social-proof-bar {
    background: white;
    padding: 30px 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.social-proof-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.proof-item {
    text-align: center;
}

.proof-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #1a237e;
}

.proof-label {
    font-size: 16px;
    color: #666;
}

.company-logos {
    display: flex;
    gap: 20px;
    align-items: center;
}

.company-logos img {
    height: 24px;
    opacity: 0.7;
}

/* Book Difference Section */
.book-difference {
    padding: 80px 0;
    background: #f8f9fa;
}

.book-difference h2 {
    text-align: center;
    font-size: 36px;
    color: #1a237e;
    margin-bottom: 20px;
}

.section-intro {
    text-align: center;
    font-size: 20px;
    color: #666;
    max-width: 600px;
    margin: 0 auto 60px;
}

.difference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.difference-card {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.difference-card h3 {
    color: #1a237e;
    margin-bottom: 15px;
    font-size: 20px;
}

/* What You'll Learn Section */
.what-youll-learn {
    padding: 80px 0;
}

.learning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.learning-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.checkmark {
    color: #64ffda;
    font-size: 24px;
}

/* Pre-order Bonuses Section */
.pre-order-bonuses {
    background: #1a237e;
    color: white;
    padding: 80px 0;
    text-align: center;
}

.bonuses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.bonus-card {
    background: rgba(255,255,255,0.1);
    padding: 30px;
    border-radius: 8px;
    position: relative;
}

.bonus-value {
    position: absolute;
    top: -12px;
    right: -12px;
    background: #64ffda;
    color: #1a237e;
    padding: 5px 10px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
}

/* Author Section */
.author-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.author-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    align-items: center;
}

.author-image img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
}

.faq-grid {
    display: grid;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.faq-item {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Final CTA Section */
.final-cta {
    background: linear-gradient(135deg, #1a237e 0%, #0d47a1 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.countdown {
    margin-bottom: 40px;
}

#countdown-timer {
    font-size: 48px;
    font-weight: 700;
    margin: 20px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .hero-text h2 {
        font-size: 24px;
    }

    .cta-group {
        justify-content: center;
    }

    .social-proof-bar {
        flex-direction: column;
        gap: 30px;
    }

    .author-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .author-image {
        margin: 0 auto;
    }
}