* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Tahoma, sans-serif;
    background: #f4f6f9;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 700px;
    margin: auto;
}

.card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,.08);
}

.product-title {
    text-align: center;
    margin-bottom: 25px;
    color: #222;
}

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

.image-box img {
    width: 100%;
    max-width: 400px;
    border-radius: 12px;
}

.specs {
    margin-top: 30px;
}

.specs h2 {
    margin-bottom: 15px;
}

.specs ul {
    padding-right: 20px;
}

.specs li {
    margin-bottom: 10px;
}

.lead-form {
    margin-top: 35px;
}

.lead-form h3 {
    margin-bottom: 15px;
}

input[type="tel"] {
    width: 100%;
    padding: 14px;
    border: 1px solid #ccc;
    border-radius: 10px;
    margin-bottom: 15px;
    font-size: 16px;
}

button {
    width: 100%;
    border: none;
    background: #0d6efd;
    color: #fff;
    padding: 14px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    opacity: .9;
}

.success,
.error {
    margin-top: 15px;
    padding: 12px;
    border-radius: 10px;
}

.success {
    background: #d1e7dd;
    color: #0f5132;
}

.error {
    background: #f8d7da;
    color: #842029;
}

@media (max-width: 576px) {

    .card {
        padding: 20px;
    }

    .product-title {
        font-size: 24px;
    }

}