/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    line-height: 1.6;
    color: #2c3e2d;
    background-color: #faf8f5;
}

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

/* Typography */
h1, h2, h3, h4 {
    margin-bottom: 1rem;
    font-weight: normal;
}

.main-title {
    font-size: 2.8rem;
    color: #5a7c65;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.subtitle {
    font-size: 1.4rem;
    color: #7a8471;
    font-style: italic;
    margin-bottom: 1.5rem;
    font-weight: 300;
}

.section-title {
    font-size: 2rem;
    color: #5a7c65;
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 500;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #f5f2ed 0%, #ede8df 100%);
    padding: 4rem 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

.description {
    font-size: 1.1rem;
    color: #6b7c6b;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.age-badge {
    display: inline-block;
    background-color: #5a7c65;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
}

.cta-section {
    margin-top: 2rem;
}

.download-btn {
    display: inline-block;
    background: linear-gradient(135deg, #6b8e6b 0%, #5a7c65 100%);
    color: white;
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(90, 124, 101, 0.3);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(90, 124, 101, 0.4);
    background: linear-gradient(135deg, #7a9d7a 0%, #6b8e6b 100%);
}

.download-btn.large {
    padding: 1.2rem 2.5rem;
    font-size: 1.2rem;
}

.download-note {
    font-size: 0.9rem;
    color: #8a9a8a;
    margin-top: 0.5rem;
    font-style: italic;
}

.hero-image {
    text-align: center;
}

.book-cover {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
}

.book-cover:hover {
    transform: scale(1.02);
}

/* Main Content */
.main-content {
    padding: 4rem 0;
}

/* Features Section */
.features-section {
    margin-bottom: 4rem;
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid #f0ede6;
}

.feature-card:hover {
    box-shadow: 0 8px 25px rgba(90, 124, 101, 0.15);
    border-color: #5a7c65;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h4 {
    color: #5a7c65;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #6b7c6b;
    line-height: 1.6;
}

/* Sample Section */
.sample-section {
    background: white;
    margin: 4rem 0;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

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

.sample-content h4 {
    color: #5a7c65;
    font-size: 1.4rem;
    margin: 2rem 0 1rem 0;
}

.sample-content h4:first-child {
    margin-top: 0;
}

.activity-list {
    list-style: none;
    padding-left: 0;
}

.activity-list li {
    background: #f8f6f2;
    padding: 1rem;
    margin: 0.8rem 0;
    border-radius: 8px;
    border-left: 4px solid #5a7c65;
    color: #4a5a4a;
}

.activity-list strong {
    color: #5a7c65;
}

/* Benefits Section */
.teacher-benefits {
    margin: 4rem 0;
}

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

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.benefit-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, #6b8e6b, #5a7c65);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
}

.benefit-content h4 {
    color: #5a7c65;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.benefit-content p {
    color: #6b7c6b;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Download Section */
.download-section {
    margin: 4rem 0;
    text-align: center;
}

.download-card {
    background: linear-gradient(135deg, #f8f6f2 0%, #f0ede6 100%);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

.download-card h3 {
    color: #5a7c65;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.download-description {
    color: #6b7c6b;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.download-details {
    display: flex;
    justify-content: space-around;
    margin: 2rem 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.detail-item {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    color: #5a7c65;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    flex: 1;
    min-width: 120px;
}

/* Footer */
.footer {
    background: #5a7c65;
    color: white;
    padding: 3rem 0;
    margin-top: 4rem;
}

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

.footer-section h4 {
    color: #c8d5c8;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p {
    color: #b5c7b5;
    line-height: 1.6;
}

.contact-link {
    color: #c8d5c8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .main-title {
        font-size: 2.2rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .hero-section {
        padding: 2rem 0;
        min-height: auto;
    }
    
    .features-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .download-details {
        flex-direction: column;
    }
    
    .detail-item {
        text-align: center;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .sample-section,
    .download-card {
        padding: 2rem;
        margin: 2rem 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 1.8rem;
    }
    
    .download-btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
        display: block;
        text-align: center;
    }
    
    .download-btn.large {
        padding: 1rem 1.8rem;
        font-size: 1.1rem;
    }
    
    .feature-card,
    .benefit-item {
        padding: 1.5rem;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.download-btn:focus,
.contact-link:focus {
    outline: 2px solid #8fa98f;
    outline-offset: 2px;
}

/* Free note styling */
.free-note {
    text-align: center;
    margin-top: 2rem;
    padding: 1rem;
    background: linear-gradient(135deg, #e8f5e8, #f0f8f0);
    border-radius: 8px;
    border: 2px solid #2d5a2d;
}

.free-note p {
    margin: 0;
    font-size: 1.1rem;
    color: #2d5a2d;
}

/* Purchase section styling */
.purchase-section {
    margin: 3rem 0;
}

.purchase-card {
    background: #f8f8f6;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid #d4be9c;
}

.purchase-card h3 {
    color: #8b4513;
    text-align: center;
    margin-bottom: 1rem;
}

.purchase-description {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #5a4a3a;
}

.purchase-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.purchase-feature {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #8b4513;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.purchase-note {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 1.1rem;
    color: #5a4a3a;
}

/* Courtesy note styling */
.courtesy-note {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #6b5b47;
}

/* Print styles */
@media print {
    .hero-section, .purchase-section {
        background: none;
    }
    
    .download-btn {
        display: none;
    }
    
    .footer {
        background: none;
        color: black;
    }
}