/* Banner nhỏ */
.banner-small {
    background: #002B5B;
    color: white;
    text-align: center;
    padding: 80px 20px;
}
.banner-small h1 {
    font-size: 40px;
    margin: 0;
    font-weight: bold;
}

/* Giới thiệu sản phẩm */
.intro-product {
    background: #ffffff;
    padding: 60px 20px;
}
.intro-product h2 {
    color: #002B5B;
    font-size: 32px;
    margin-bottom: 20px;
    text-align: center;
}
.intro-product p {
    font-size: 17px;
    color: #555;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Danh sách sản phẩm */
.product-list {
    background: #f5f7fa;
    padding: 60px 20px;
}
.product-list h2 {
    text-align: center;
    font-size: 32px;
    color: #002B5B;
    margin-bottom: 50px;
    font-weight: bold;
}

.grid-products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.product-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: flex;
    flex-direction: column;
    text-align: center;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    transition: transform 0.4s ease;
}
.product-card:hover img {
    transform: scale(1.05);
}

.product-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.product-info h3 {
    font-size: 20px;
    color: #002B5B;
    margin-bottom: 10px;
    font-weight: bold;
}
.product-info p {
    font-size: 15px;
    color: #555;
}

/* CTA Contact */
.contact-cta {
    background: #002B5B;
    color: white;
    text-align: center;
    padding: 60px 20px;
}
.contact-cta h2 {
    font-size: 30px;
    margin-bottom: 25px;
    font-weight: bold;
}
.btn-secondary {
    display: inline-block;
    background: #FF6F00;
    color: white;
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: bold;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
}
.btn-secondary:hover {
    background: #e65c00;
    transform: translateY(-4px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.2);
}

/* Social links trong CTA */
.social-links {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
}
.social-links a img {
    width: 42px;
    height: 42px;
    transition: transform 0.3s;
}
.social-links a:hover img {
    transform: scale(1.2);
}

/* Footer */
footer {
    background: #001f3f;
    color: white;
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
}