:root {
    --primary-color: #140f46;
    --secondary-color: #d63a1f;
    --text-color: #333;
    --light-bg: #F8F9FA;
    --white: #FFFFFF;
}

.product-hero {
    padding: 250px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: var(--secondary-color);
}

.hero-description {
    color: #140F46CC;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
    font-weight: 400;
    font-size: 18px;
    text-align: center;
}

.product-detail-section {
    padding: 80px 0;
}

.product-main-image {
    width: 100%;
    height: 500px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 30px;
}

.product-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding-left: 40px;
}

.product-title {
    color: #1a365d;
    margin-bottom: 20px;
    font-family: "Inter";
    font-weight: 600;
    font-size: 36px;
    line-height: 1.2;
}

.product-description {
    color: #000000CC;
    margin-bottom: 30px;
    font-family: "Inter";
    font-weight: 400;
    font-size: 18px;
    line-height: 1.6;
}

.product-description h1,
.product-description h2,
.product-description h3,
.product-description h4,
.product-description h5,
.product-description h6 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.product-description p {
    margin-bottom: 15px;
}

.product-description ul,
.product-description ol {
    margin-bottom: 15px;
    padding-left: 20px;
}

.product-description li {
    margin-bottom: 5px;
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    padding: 12px 24px;
    border: 2px solid var(--secondary-color);
    border-radius: 8px;
    background: transparent;
}

.back-button:hover {
    color: var(--white);
    background: var(--secondary-color);
    transform: translateX(-5px);
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .product-info {
        padding-left: 0;
        margin-top: 40px;
    }
    
    .product-main-image {
        height: 300px;
    }
    
    .product-title {
        font-size: 28px;
    }
    
    .product-description {
        font-size: 16px;
    }
}