#unique-image {
    width: 100%;
    height: 30vh;
    object-fit: cover;
}
#hero-image {
    width: 100%;
    height: 40vh;
    object-fit: cover;
    filter: brightness(0.7);
}
.hero {
    position: relative;
    text-align: center;
    color: #fff;
}
.hero h1 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
@media only screen and (max-width: 768px) {
    #unique-image {
        height: 20vh;
    }
    #hero-image {
        height: 30vh;
    }
    .hero h1 {
        font-size: 2rem;
    }
}
.video-section {
    width: 70vw;
    aspect-ratio: 16 / 9;
    margin: 30px auto;
    position: relative;
}
.video-section iframe {
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
h1 {
    margin-top: 20px !important;
    vertical-align: middle;
    text-align: center;
    color: #1a1a1a;
    font-size: 2.5rem;
    font-family: 'PT Serif', serif;
    font-weight: 700;
    margin-bottom: 20px !important;
    padding: 0 20px;
}
h2 {
    margin-top: 30px !important;
    vertical-align: middle;
    text-align: center;
    color: #333;
    font-size: 2rem;
    font-family: 'PT Serif', serif;
    font-weight: 600;
    margin-bottom: 20px !important;
    padding: 0 20px;
}
h3 {
    vertical-align: middle;
    text-align: center;
    color: #666;
    font-size: 1.6rem;
    font-family: 'PT Serif', serif;
    font-weight: 400;
    margin: 20px 0;
}
h4 {
    margin: 0;
    font-size: 1.4rem;
    font-family: 'PT Serif', serif;
    font-weight: 600;
    color: #222;
}
p {
    vertical-align: middle;
    padding-left: 40px;
    padding-right: 40px;
    font-size: 30px;
    font-family: 'PT Serif', serif;
    margin-top: 300vh;
}
.separator {
    vertical-align: middle;
    text-align: center;
    opacity: 0.55;
    font-size: 30px;
    font-family: 'PT Serif', serif;
}
ul {
    margin-top: 300vh;
    font-size: 25px;
    font-family: 'PT Serif', serif;
    margin: 0 auto;
    width: 70%;
}
ol {
    margin-top: 300vh;
    font-size: 30px;
    font-family: 'PT Serif', serif;
    margin: 0 auto;
    width: 70%;
}
a {
    text-decoration: none !important;
    color: #007bff;
}
a:hover {
    color: #0056b3;
}
.download-list {
    list-style: none;
    margin-top: 0;
    margin: 20px auto;
    width: 80%;
    padding: 20px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.download-list li {
    margin: 12px 0;
    font-size: 1.1rem;
    font-family: 'PT Serif', serif;
}
.download-list li a {
    display: block;
    padding: 12px 15px;
    color: #007bff;
    background: #f8f9fa;
    border-radius: 5px;
    transition: all 0.3s ease;
}
.download-list li a:hover {
    background: #007bff;
    color: #ffffff;
    transform: translateX(5px);
}
.download-list li.missing {
    color: #dc3545;
    font-style: italic;
    padding: 12px 15px;
}
.imgcenter {
    display: block;
    margin: 20px auto;
    max-width: 80%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.img-right {
    float: right;
    margin: 10px 0 10px 20px;
    max-width: 40%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
#imgcenter {
    margin: auto;
    display: block;
}
.error-mess {
    color: red;
    margin: 10px 0;
    font-weight: 600;
    display: none;
}
footer {
    text-align: center;
    background: #222;
    padding: 20px;
    margin-top: 100px;
    color: #fff;
}
form {
    margin: 30px 0;
}
form label {
    display: block;
    margin-bottom: 5px;
    width: 100%;
}
textarea {
    width: 100%;
    border: 1px solid silver;
    border-radius: 5px;
    padding: 10px 15px;
    font-size: 15px;
    margin-bottom: 10px;
}
form input {
    width: 100%;
    border: 1px solid silver;
    border-radius: 5px;
    padding: 10px 15px;
    font-size: 15px;
    margin-bottom: 10px;
}
.fixed-button {
    position: fixed;
    bottom: 10px;
    right: 10px;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.fixed-button:hover { 
    background-color: #0056b3;
}
main {
    margin-top: 50px;
    margin-left: 100px;
    width: 55%;
}
.containerr {
    max-width: 1000px;
    margin: 20px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
.products {
    margin: 30px 0;
}
.product {
    display: flex;
    align-items: center;
    background: #f9f9f9;
    border-radius: 12px;
    margin: 20px 0;
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.product:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.product-img {
    max-width: 200px;
    height: auto;
    border-radius: 10px;
    margin-right: 20px;
    transition: transform 0.3s ease;
}
.product:hover .product-img {
    transform: scale(1.05);
}
.product-content {
    flex: 1;
}
.product-list {
    list-style: none;
    margin: 10px 0;
    padding: 0;
    font-size: 1.1rem;
    font-family: 'PT Serif', serif;
    color: #333;
}
.product-list li {
    margin: 8px 0;
}
.product-list .out-of-stock {
    color: #e63946;
    font-size: 0.9rem;
    background: #ffe5e7;
    padding: 6px 12px;
    border-radius: 6px;
    display: inline-block;
}
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 1rem;
    font-family: 'PT Serif', serif;
    background: linear-gradient(45deg, #007bff, #00b4d8);
    color: #fff !important;
    border-radius: 8px;
    transition: background 0.3s ease, transform 0.3s ease;
}
.btn:hover {
    background: linear-gradient(45deg, #0056b3, #0096c7);
    transform: translateY(-2px);
}
hr {
    border: 0;
    height: 2px;
    background: #333;
    margin: 20px 0;
}
.content p {
    margin-top: 0;
    margin-bottom: 15px;
    padding: 0 20px;
    font-size: 1.2rem;
    color: #333;
    line-height: 1.6;
}
.content ol {
    margin-top: 0;
    margin: 20px auto;
    width: 80%;
    padding: 20px;
    font-size: 1.1rem;
    font-family: 'PT Serif', serif;
    background: #f8f9fa;
    border-radius: 8px;
}
.content ol li {
    margin: 10px 0;
}
.manual-list {
    list-style: none;
    margin-top: 0;
    margin: 20px auto;
    width: 80%;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    font-size: 1.1rem;
    font-family: 'PT Serif', serif;
}
.manual-list li {
    margin: 10px 0;
    position: relative;
    padding-left: 25px;
}
.manual-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #007bff;
    font-size: 1.5rem;
    line-height: 1.1rem;
}
/* Responsive design */
@media only screen and (max-width: 768px) {
    .containerr {
        width: 90%;
        padding: 20px;
    }
    .hero h1 {
        font-size: 2rem;
    }
    h3 {
        font-size: 1.4rem;
    }
    .video-section {
        width: 50vw;
    }
    .product {
        flex-direction: column;
        align-items: flex-start;
    }
    .product-img {
        max-width: 100%;
        margin: 0 0 15px 0;
    }
    .product-list {
        font-size: 1rem;
    }
}
@media only screen and (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    h3 {
        font-size: 1.2rem;
    }
    .video-section {
        width: 90vw;
    }
    .product-list {
        font-size: 0.9rem;
    }
    .btn {
        font-size: 0.9rem;
        padding: 8px 15px;
    }
}