html, body {
    height: 100%; /* Ensure the body takes full viewport height */
    margin: 0;    /* Remove default margin */
}

body {
    display: flex;            /* Flexbox layout */
    flex-direction: column;   /* Stack elements vertically */
}

header {
    width: 100%;   /* Header takes full width of the viewport */
}

.flex-grow {
    flex-grow: 1; /* This makes the div grow to take up any available space */
}

.flex-col {
    flex-direction: column; /* Stack children vertically */
}


*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: #f0f4f8;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
}

.form-input {
    width: 100%;
    padding: 12px 20px;
    border: 2px solid #ccc;
    border-radius: 8px;
    background-color: white;
    transition: border-color 0.3s;
}

.form-input:focus {
    border-color: #3182ce;
    outline: none;
}

.btn-submit {
    width: 100%;
    background-color: #4f46e5;
    color: white;
    padding: 14px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-submit:hover {
    background-color: #373f99;
}

.tab-button {
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
}

.form-content {
    width: 100%;
}

@media (min-width: 768px) {
    .auth-container {
        padding: 20px 70px;
    }
}