body {
background: linear-gradient(to right, #f0fdfa, #f8fffe);}
.input-box {
    position: relative;
    width: 100%;
}
h1 {
    font-size: 24px;
    font-weight: 700;
}
.input-box input {
    width: 100%;
    padding-right: 35px; 
}
input, textarea {
    height: 35px;
    font-size: 14px;
}
.input-box i {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: gray;
}
.container {
    max-width: 500px;
    margin-top: 20px;
    padding: 20px;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
input:focus, textarea:focus {
    border-color: #28a745;
    box-shadow: 0 0 5px rgba(40, 167, 69, 0.5);
    outline: none;
}
button {
    width: 100%;
    font-weight: bold;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.05);
}

#successMessage {
    display: block;
    text-align: center;
    font-weight: bold;
    margin-top: 10px;
}