body {
    margin: 0;
    padding: 0;
    background: #080616;
    color: #ffffff;
    font-family: Arial, sans-serif;
}

#reg {
    width: 400px;
    margin: 80px auto;
    padding: 40px;
    background: #1A1953;
    border-radius: 16px;
    border-left: 6px solid #162E93;
    box-shadow:
        0 8px 20px rgba(0,0,0,0.6),
        0 0 25px rgba(47,47,228,0.4),
        inset 0 0 15px rgba(47,47,228,0.25);
    transform: perspective(900px) rotateX(1deg);
    transition: 0.3s ease;
    text-align: center;
}

#reg:hover {
    transform: perspective(900px) rotateX(0deg) scale(1.01);
    box-shadow:
        0 12px 25px rgba(0,0,0,0.7),
        0 0 35px rgba(47,47,228,0.7),
        inset 0 0 20px rgba(47,47,228,0.4);
}

#reg h3 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #ffffff;
    text-shadow: 0 0 10px rgba(47,47,228,0.6);
}

#reg input[type="text"],
#reg input[type="email"],
#reg input[type="password"] {
    width: 90%;
    padding: 14px;
    margin: 12px 0;
    border-radius: 10px;
    border: 2px solid #162E93;
    background: #080616;
    color: #ffffff;
    font-size: 18px;
    box-shadow:
        0 0 12px rgba(47,47,228,0.3),
        inset 0 0 10px rgba(47,47,228,0.2);
    transition: 0.3s ease;
}

#reg input[type="text"]:focus,
#reg input[type="email"]:focus,
#reg input[type="password"]:focus {
    border-color: #4a4aff;
    box-shadow:
        0 0 20px rgba(47,47,228,0.6),
        inset 0 0 12px rgba(47,47,228,0.4);
}

#reg input[type="radio"] {
    margin: 10px;
    transform: scale(1.4);
}

#reg label {
    font-size: 20px;
    margin-left: 5px;
}

#ok {
    width: 90%;
    padding: 14px;
    margin-top: 25px;
    background: linear-gradient(145deg, #162E93, #0f0e3a);
    color: #ffffff;
    border: 2px solid rgba(47,47,228,0.5);
    border-radius: 10px;
    font-size: 22px;
    cursor: pointer;
    box-shadow:
        0 6px 15px rgba(0,0,0,0.5),
        0 0 15px rgba(47,47,228,0.4),
        inset 0 0 10px rgba(47,47,228,0.25);
    transition: 0.3s ease;
}

#ok:hover {
    border-color: #4a4aff;
    background: #1d1cb8;
    box-shadow:
        0 10px 20px rgba(0,0,0,0.6),
        0 0 25px rgba(47,47,228,0.7),
        inset 0 0 15px rgba(47,47,228,0.5);
}

@media (max-width: 700px) {
    body {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    #reg {
        width: 90%;
        margin: 40px auto;
        padding: 25px;
        box-sizing: border-box;
    }

    #reg h3 {
        font-size: 26px;
    }

    #reg input[type="text"],
    #reg input[type="email"],
    #reg input[type="password"] {
        font-size: 16px;
        padding: 12px;
    }

    #ok {
        font-size: 18px;
        padding: 12px;
    }
}