* {
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

html, body {
    margin: 0;
    min-height: 100vh;

    display: flex;
    justify-content: center;
    align-items: center;

    background:
        linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)),
        url("fruit_photo.jpg") center/cover no-repeat fixed;

    color: white;
}

#theForm {
    width: 100%;
    max-width: 500px;
    padding: 2rem;

    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(12px);
    border-radius: 20px;

    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

option{
    color: #000;
}

input,
select,
#about {
    width: 100%;
    padding: 0.9rem;
    margin-bottom: 1rem;

    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.2);

    background: rgba(255,255,255,0.08);
    color: white;

    outline: none;
    transition: 0.3s ease;
}

input::placeholder {
    color: rgba(255,255,255,0.6);
}

input:focus,
select:focus,
#about:focus {
    border-color: rgba(255,255,255,0.6);
    background: rgba(255,255,255,0.15);
}

#submit,
#skip,
#signIn {
    width: 100%;
    padding: 1rem;
    margin-bottom: 0.8rem;

    border: none;
    border-radius: 14px;

    background: white;
    color: #222;

    font-weight: 600;
    cursor: pointer;

    transition: all 0.3s ease;
}

#submit:hover,
#skip:hover,
#signIn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

#submit {
    background: linear-gradient(45deg, #ffd166, #fca311);
    color: #222;
}

.error {
    display: none;

    padding: 0.8rem;
    margin-top: 0.5rem;

    border-radius: 12px;
    font-size: 0.9rem;

    background: rgba(255, 70, 70, 0.85);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
}

#gender {
    display: flex;
    flex-direction: row;
    margin-top: 10px;
}

@media (max-width: 600px) {

    #theForm {
        margin: 1rem;
        padding: 1.5rem;
    }

    input,
    select {
        font-size: 0.95rem;
    }

    #submit,
    #skip,
    #signIn {
        padding: 0.9rem;
        font-size: 0.95rem;
    }
}