* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url("iop1.png") no-repeat center center;
    background-size: cover;
    color: #fff;
    padding: 20px;
}

.container {
    width: 420px;
    max-width: 100%;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(9px);
    -webkit-backdrop-filter: blur(9px);
    color: #fff;
    border-radius: 12px;
    padding: 30px 40px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
}

.container h1 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 25px;
}

#signupForm {
    width: 100%;
}

#signupForm > input[type="text"],
#signupForm > input[type="email"],
#signupForm > input[type="password"] {
    width: 100%;
    height: 50px;
    margin: 15px 0;
    padding: 0 20px;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 40px;
    outline: none;
    color: #fff;
    font-size: 16px;
}

#signupForm > input::placeholder {
    color: #fff;
    opacity: 1;
}

#signupForm label {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 14px;
    margin: 5px 0 18px;
    color: #fff;
}

#rememberMe {
    accent-color: #fff;
    width: 16px;
    height: 16px;
}

#signupForm button {
    width: 100%;
    height: 45px;
    background: #fff;
    border: none;
    outline: none;
    border-radius: 40px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    font-size: 16px;
    color: #333;
    font-weight: 600;
    transition: 0.2s ease;
}

#signupForm button:hover {
    background: #e9e9e9;
    transform: translateY(-1px);
}

#signupMessage {
    text-align: center;
    font-size: 14px;
    margin-top: 12px;
    min-height: 20px;
}

.container > p:last-child {
    text-align: center;
    font-size: 14.5px;
    margin: 20px 0 0;
}

.container > p:last-child a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
}

.container > p:last-child a:hover {
    text-decoration: underline;
}

@media (max-width: 500px) {
    body {
        padding: 15px;
    }

    .container {
        padding: 25px 25px;
    }

    .container h1 {
        font-size: 30px;
    }
}