* {
    font-family: 'Roboto Mono', monospace;
    padding: 0;
    margin: 0;
    border: none;
}
body {
    background: #131f24;
}
/*body, html {
    margin: 0;
    height: 100%;
}
*/

/* Dùng Flexbox để canh giữa */
.d-flex-ls {
    display: flex;
}

.justify-content-center-ls {
    justify-content: center;
}

.align-items-center-ls {
    align-items: center;
}

.w-100-ls {
    width: 100%;
}

.h-100-ls {
    height: 100%;
}

.vh-100-ls {
    height: 100vh;
}

/* Container login */
.login-container-ls {
    padding: 30px;
    border-radius: 10px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

/* Form controls */
.form-control-ls {
    width: 100%;
    padding: 10px;
    background-color: #334155;
    border: 1px solid #475569;
    border-radius: 5px;
    color: white;
}

    .form-control-ls::placeholder {
        color: #94a3b8;
    }

.btn-ls {
    background-color: #49c0f8;
    border: none;
    padding: 10px;
    border-radius: 10px;
    color: black;
    font-weight: bold;
    cursor: pointer;
}

    .btn-ls:hover {
        background-color: #38bdf8;
    }

.btn-outline-facebook-ls {
    padding: 10px;
    border-radius: 10px;
    color: black;
    font-weight: bold;
    cursor: pointer;
    background-color: transparent;
    border: 2px solid #3b5998;
    color: #3b5998;
}
    .btn-outline-facebook-ls:hover {
        background-color: #3b5998;
        color: #ffffff;
    }
    .btn-outline-google-ls {
        padding: 10px;
        border-radius: 10px;
        color: black;
        font-weight: bold;
        cursor: pointer;
        
        background-color: transparent;
        border: 2px solid #ea4335;
        color: #ea4335;
    }
    .btn-outline-google-ls:hover {
        background-color: #ea4335;
        color: #ffffff;
    }
.text-center-ls {
    text-align: center;
}

.mt-3-ls {
    margin-top: 1rem;
}

.me-2-ls {
    margin-right: 0.5rem;
}

.text-danger-ls {
    color: #f87171;
}