*{
    margin:0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
    color: #f5e9e2; /* chữ pastel sáng */
}

body{
    background-color: #0d0d0d;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

div.container{
    background-color: rgba(255,255,255,0.08);
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 0 20px rgba(200, 190, 180, 0.3);
    width: 500px;
}

h3#title{
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 20px;
    color: #e6d5c3; /* pastel beige */
}

div.form-group{
    margin: 15px 0;
}

div.form-group label{
    display: inline-block;
    border-radius: 20px;
    width: 120px;
    color: #d6cfc7; /* taupe pastel */
}

form#frmLogin{
    background-color: #a89f99; /* nâu xám pastel */
    box-shadow: 0 0 15px rgba(236, 234, 235, 0.3);
    width: 80%;
    margin: 20px auto;
    padding: 20px;
    border-radius: 10px;
}

input.form-control{
    width: 100%;
    padding: 12px 15px;
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-size: 18px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.5);
    transition: 0.4s;
}

input.form-control:focus{
    border-color: #e6d5c3; /* pastel beige khi focus */
    box-shadow: 0 5px 15px rgba(229, 231, 231, 0.3);
}

input.button {
    border-radius: 25px;
    width: 45%;
    margin: 20px 0;
    font-size: 15px;
    padding: 15px;
    border: none;
    background: linear-gradient(135deg, #f6d5f7, #fbe9d7); /* pastel hồng + kem */
    color: #4a3f35; /* chữ nâu trầm */
    cursor: pointer;
    transition: all 0.3s;
}

input.button:hover{
    background: linear-gradient(135deg, #e6d5c3, #d6cfc7); /* pastel beige + taupe */
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}