body {
    font-family: Tahoma, Arial, sans-serif;
    background-color: #f7f7f7;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}
.landing-container {
    max-width: 500px;
    margin: 20px auto;
    background: white;
    padding: 15px;
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    text-align: center;
}
.header-img {
    width: 100%;
    border-radius: 10px;
}
h1 { color: #333; font-size: 22px; margin-top: 20px; }
.description { color: #555; font-size: 14px; text-align: justify; padding: 0 10px; }
.offer-box {
    background: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
    padding: 15px;
    margin: 20px 0;
    border-radius: 8px;
    font-weight: bold;
    font-size: 14px;
}
input[type="tel"] {
    width: 85%;
    padding: 15px;
    margin-bottom: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    text-align: center;
}
button {
    width: 90%;
    padding: 15px;
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
}
button:hover { background: #c0392b; }