index.css

body {
    font-family: Georgia, serif;
    margin: 0;
    box-sizing: border-box;
    height: 100vh;
}

.sc {
    opacity: 0;
    transition: all .9s ease;
}

.sc.show {
    opacity: 1;
    transform: none;
}

.sc-up {
    transform: translate(0, 150px);
}

button {
    -webkit-appearance: none;
    appearance: none;
    vertical-align: middle;
    border: 0;
    outline: 0;
    background: transparent;
    border-radius: 0;
    text-align: inherit;
}

.header-title {
    display: flex;
    justify-content: center;
    align-content: center;
    margin-top: 5px;
}

.header-image-wrap {
    position: relative;
    z-index: 0;
    height: 50vw;
}

.header-image {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    transition: all 1s ease-in-out;
    position: absolute;
    object-fit: cover;
}

.header-title img {
    width: 100px;
    height: 80px;
    object-fit: contain;
}

.header-image.active {
    opacity: 1;
    z-index: 2;
}

.header-title h1 {
    font-family: cursive;
}

.nav-list {
    text-align: center;
    padding: 10px 0;
    margin: 0 auto;
    z-index: 5;
    height: auto;
}

.nav-list-item {
    list-style: none;
    display: inline-block;
    margin: 0 20px;
}

header {
    width: 100%;
    padding: 0;
    margin: 0 auto;
    text-align: center;
    margin-bottom: 10px;
}

li a {
    text-decoration: none;
    color: black;
}


/* .header-image-wrap {
    width: 100%;
} */


/* .header-image-wrap .header-image {
    width: 100%;
    object-fit: cover;
    min-width: 100%;
    max-height: 550px;
} */

.btn {
    display: none;
}

.btn-line {
    /* 線の長さと高さ */
    width: 100%;
    height: 4px;
    /* バーガー線の色 */
    background-color: #333;
    /* バーガー線の位置基準として設定 */
    position: relative;
    transition: 2s;
}

.btn-line::before,
.btn-line::after {
    content: "";
    position: absolute;
    top: 1px;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #333;
    transition: .2s;
}

.btn-line::before {
    transform: translateY(-16px);
}

.btn-line::after {
    transform: translateY(16px);
}

.btn-line.open {
    background-color: transparent;
    transition: .2s;
}

.btn-line.open::before,
.btn-line.open::after {
    content: "";
    transition: .2s;
}

.btn-line.open::before {
    transform: rotate(45deg);
}

.btn-line.open::after {
    transform: rotate(-45deg);
}

.section-1 {
    width: 80%;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    border-bottom: 1px;
    font-size: large;
    border-bottom: 1px solid black;
    padding-bottom: 10px;
    font-weight: bold;
}

.concept {
    width: 100%;
    display: flex;
}

.concept img {
    width: 50%;
    height: 300px;
    object-fit: contain;
    margin-right: 2%;
}

.concept .concept-text {
    margin: auto 0;
}

.concept-text p {
    text-align: start;
}

.section-2 {
    width: 100%;
    margin-top: 50px;
}

.cafe-time-wrap {
    height: 30%;
    position: relative;
}

.cafe-time {
    width: 50%;
    height: 90%;
    background-color: white;
    opacity: 0.9;
    position: absolute;
    top: 5%;
    left: 5%;
    border-radius: 10px;
}

.cafe-time .cafe-time-text {
    font-size: xx-large;
    width: 80%;
    margin: 0 auto;
    margin-top: 10px;
    text-align: center;
    border-bottom: 1px solid black;
    padding-bottom: 5px;
}

.cafe-time-explanation h2 {
    text-align: center;
}

.cafe-time-explanation .explanation-text {
    width: 80%;
    margin: 5px auto;
    text-align: start;
}

.cafe-time-img-wrap {
    width: 100%;
}

.cafe-time-image {
    width: 100%;
    object-fit: cover;
    min-width: 100%;
    max-height: 450px;
}

.cafe-menu-wrap {
    width: 80%;
    margin: 10px auto;
}

.cafe-menu-wrap-title {
    text-align: center;
    border-bottom: 1px;
    font-size: large;
    border-bottom: 1px solid black;
    padding-bottom: 10px;
    font-weight: bold;
}

.cafe-menu {
    width: 100%;
    display: flex;
}

.cafe-menu-wrap div:not(:first-of-type) {
    margin-top: 10%;
}

.cafe-menu-wrap div:nth-of-type(2n) {
    flex-direction: row-reverse;
}

.cafe-menu img {
    width: 50%;
    height: 300px;
    object-fit: contain;
    transition: all .9s ease;
}

.cafe-menu img:hover {
    transform: scale(1.1, 1.1);
}

.section-3 {
    width: 100%;
    margin-top: 50px;
}

.lunch-time-wrap {
    height: 30%;
    position: relative;
}

.lunch-time {
    width: 50%;
    height: 90%;
    background-color: white;
    opacity: 0.9;
    position: absolute;
    top: 5%;
    left: 5%;
    border-radius: 10px;
}

.lunch-time .lunch-time-text {
    font-size: xx-large;
    width: 80%;
    margin: 0 auto;
    margin-top: 10px;
    text-align: center;
    border-bottom: 1px solid black;
    padding-bottom: 5px;
}

.lunch-time-explanation h2 {
    text-align: center;
}

.lunch-time-explanation .explanation-text {
    width: 80%;
    margin: 5px auto;
    text-align: start;
}

.lunch-time-image {
    width: 100%;
    object-fit: cover;
    max-height: 450px;
    min-width: 100%;
}

.lunch-menu-all-wrap {
    width: 80%;
    margin: 10px auto;
}

.lunch-menu-all-wrap-title {
    text-align: center;
    border-bottom: 1px;
    font-size: large;
    border-bottom: 1px solid black;
    padding-bottom: 10px;
    font-weight: bold;
}

.lunch-menu-wrap {
    width: 100%;
    margin-top: 20px;
    min-height: 500px;
    height: 500px;
}

.lunch-menu {
    width: 100%;
    height: 100%;
    display: flex;
    position: relative;
}

.lunch-menu img {
    display: block;
    width: 50%;
    height: 300px;
    object-fit: contain;
    position: relative;
    transition: all .9s ease;
}

.lunch-menu img:hover {
    transform: scale(1.1, 1.1);
}

.lunch-menu .menu-text {
    margin: auto 0;
    position: absolute;
    left: 40%;
    bottom: 2px;
    background-color: whitesmoke;
    opacity: 0.9;
    border-radius: 10px;
    flex: 1;
    min-height: 300px;
    padding-bottom: 2%;
    padding-top: 2%;
}

.menu-text p {
    width: 80%;
    margin: 0 auto;
}

.menu-text h3 {
    text-align: center;
}

.section-4 {
    width: 80%;
    margin: 50px auto 30px;
}

.access-wrap {
    width: 100%;
    display: flex;
}

.access-text {
    width: 100%;
    padding: 2%;
}

.access-text p {
    text-align: left;
    width: 80%;
    margin: 10px auto;
    font-size: large;
}

.access-text p:not(:first-of-type) {
    margin-top: 30px;
}

.access-wrap img {
    width: 50%;
    height: 300px;
    object-fit: cover;
    margin-right: 5px;
}

footer {
    width: 100%;
    height: 220px;
    background-color: #522c1688;
}

.footer-text {
    padding-top: 50px;
    margin: 0 auto;
}

.footer-text h2,
p {
    text-align: center;
}

.footer-text h2 {
    font-family: cursive;
    font-size: xx-large;
}

.access-text p span {
    display: inline-block;
}

@media screen and (max-width: 970px) {
    .section-1 {
        width: 90%;
    }
    .cafe-menu {
        display: block;
    }
    .cafe-menu img {
        width: 100%;
    }
}

@media screen and (max-width: 760px) {
    .section-1 {
        width: 90%;
    }
    .concept {
        display: block;
    }
    .concept img {
        width: 100%;
        max-height: 250px;
        margin-right: 0;
        object-fit: contain;
    }
    .section-2 {
        width: 100%;
        margin-top: 50px;
    }
    .cafe-time-wrap {
        height: 30%;
        position: relative;
    }
    .cafe-time {
        width: 80%;
        left: 10%;
    }
    .cafe-time-image {
        width: 100%;
        object-fit: cover;
        min-width: 100%;
        max-height: 450px;
    }
    .lunch-time-image {
        width: 100%;
        object-fit: cover;
        max-height: 450px;
        min-width: 100%;
    }
    .lunch-time-wrap {
        height: 30%;
        position: relative;
    }
    .lunch-time {
        width: 80%;
        left: 10%;
    }
    .lunch-menu-wrap {
        width: 100%;
        margin-top: 20px;
        min-height: 500px;
        height: auto;
    }
    .lunch-menu {
        width: 100%;
        height: 100%;
        display: block;
        position: relative;
    }
    .lunch-menu .menu-text {
        margin: auto 0;
        position: static;
        background-color: whitesmoke;
        opacity: 0.9;
        border-radius: 10px;
        min-height: 300px;
        padding-bottom: 2%;
        padding-top: 2%;
        margin-top: 2%;
    }
    .lunch-menu img {
        display: block;
        width: 100%;
        height: 300px;
        object-fit: contain;
        position: relative;
    }
    .section-4 {
        width: 90%;
    }
    .access-wrap {
        width: 100%;
        display: block;
    }
    .access-wrap img {
        width: 100%;
        height: 300px;
        object-fit: cover;
    }
    .access-text {
        padding: 0;
    }
    .access-text p {
        text-align: center;
        width: 80%;
        margin: 10px auto;
        font-size: 90%;
    }
    p {
        font-size: 90%;
    }
}

@media screen and (max-width: 550px) {
    .fixed {
        position: fixed;
        width: 100%;
        height: 100%;
        font-family: Georgia, serif;
        margin: 0;
        box-sizing: border-box;
    }
    .btn {
        display: block;
        position: fixed;
        top: 16px;
        right: 16px;
        width: 48px;
        height: 48px;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 10;
    }
    .header-image-wrap {
        height: 100vw;
    }
    .nav-list {
        height: 100vh;
        position: fixed;
        right: -150px;
        top: 0;
        background-color: antiquewhite;
        padding-top: 150px;
        transition: .2s;
    }
    .nav-list-item {
        list-style: none;
        margin: 0 20px;
        display: block;
        margin-top: 20px;
    }
    .section-2 {
        width: 90%;
        margin-inline-start: auto;
        margin-inline-end: auto;
    }
    .cafe-time {
        width: 100%;
        position: static;
    }
    .cafe-time-explanation .explanation-text {
        width: 100%;
        margin: 5px auto;
    }
    .cafe-time .cafe-time-text {
        width: 100%;
    }
    .cafe-menu-wrap {
        width: 100%;
    }
    .cafe-menu {
        width: 100%;
        display: block;
    }
    .cafe-menu img {
        width: 100%;
        object-fit: contain;
        margin-right: 5px;
        height: 230px;
    }
    .section-3 {
        width: 90%;
        margin-top: 50px;
        margin-inline-start: auto;
        margin-inline-end: auto;
    }
    .lunch-time {
        width: 100%;
        position: static;
    }
    .lunch-menu img {
        width: 100%;
        object-fit: contain;
        margin-right: 5px;
        height: 230px;
    }
    .lunch-time .lunch-time-text {
        width: 100%;
    }
    .lunch-time-explanation .explanation-text {
        width: 100%;
    }
    .lunch-menu-wrap {
        width: 100%;
        margin-top: 20px;
    }
    .lunch-menu-all-wrap {
        width: 100%;
        margin: 10px auto;
    }
    p {
        font-size: 80%;
    }
    .cafe-menu img:hover {
        transform: scale(1.0, 1.0);
    }
}