:root {
    --primary-color: #ed0300;
    --secondary-color: #ff4d00;
}

body {
    min-height: 100dvh;
    background-color: #f5f5f5;
    color: #333;
    padding-bottom: 5rem;
}

.container {
    width: 100%;
    /* max-width: 640px; */
    min-height: 100dvh;
    margin: 0 auto;
    position: relative;
    /* box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); */
}

.title {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 18px;
    position: relative;
    display: inline-block;
}
.title::after {
    content: "";
    position: absolute;
    bottom: -3px;
    display: block;
    width: 80%;
    height: 2px;
    border-radius: 5px;
    background-color: var(--primary-color);
}

@media (min-width: 640px) {
    nav {
        padding: 0 6rem;
    }
    main {
        padding: 0 5rem;
    }

    .banner {
        margin: 1rem 1rem 0 1rem;
        border-radius: 6px;
        overflow: hidden;
    }
}