html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    /*background-color: rgba(128, 128, 128, 0);*/
}

body {
    background-color: rgb(192, 192, 192);
    /*background-color: rgba(250, 250, 50, 0.5);*/
}
* {
    box-sizing: border-box;
}

.slider {
    width: 100%;
    height: 90%;
    margin: 0;
    padding: 0;
    /*margin: 100px auto;
    margin-top: 0;
    margin-bottom: 0;
    padding-top: 50px;*/
    /*margin-left: 100px auto;
    margin-right: 100px auto;
    margin-top: 100px auto;
    margin-bottom: 100px auto;*/
}

/*.slick-slide {
    margin: 0px 20px;
}*/

    /*.slick-slide img {
        width: 100%;
    }*/

/*���E�̖��̐F��ς���*/
.slick-prev:before,
.slick-next:before {
    color: #000;
}
/*���E�̖��̈ʒu��ς���*/
/*.slick-next {
    right: 20px;
    z-index: 99;
}
.slick-prev {
     left: 15px;
    z-index: 100;
}*/
/*�X���C�h���̃h�b�g�̐F��ς���*/
.slick-dots li.slick-active button:before,
.slick-dots li button:before {
    color: black;
}

.tutoreal-item {
	/*margin: 0 0 2em 0;*/
    margin: 0;
	padding: 1em;
	border: solid 2px #ababab;
	/*-webkit-border-radius: 20px;
	-moz-border-radius: 20px;
	-o-border-radius: 20px;
	-ms-border-radius: 20px;*/
	/*border-radius: 20px;*/

	background-color: white;

    width: 100%;
    height: 100vh;
}

img {
    width: 100%;
    height: auto;
}

.tutoreal-note {
    font-size: clamp(18px, 2.75vw, 22px);
}

/* Larger dots */
.slick-dots {
    bottom: 16px;
}
.slick-dots li {
    width: 34px;
    height: 34px;
    margin: 0 7px;
}
.slick-dots li button {
    width: 34px;
    height: 34px;
    padding: 7px;
}
.slick-dots li button:before {
    width: 34px;
    height: 34px;
    font-size: 14px;
    line-height: 34px;
}

.slider {
    position: relative;
    --tutorial-arrow-lane-width: clamp(56px, 10vw, 72px);
    --tutorial-bg: rgb(192, 192, 192);
    background-color: var(--tutorial-bg);
    padding-left: var(--tutorial-arrow-lane-width);
    padding-right: var(--tutorial-arrow-lane-width);
}

.slider::before,
.slider::after {
    content: "";
    position: absolute;
    top: 0;
    width: var(--tutorial-arrow-lane-width);
    height: 100%;
    background: var(--tutorial-bg);
    pointer-events: none;
    z-index: 5;
}

.slider::before {
    left: 0;
    border-right: 1px solid #9c9c9c;
}

.slider::after {
    right: 0;
    border-left: 1px solid #9c9c9c;
}

.slider .slick-dots {
    left: var(--tutorial-arrow-lane-width);
    right: var(--tutorial-arrow-lane-width);
    width: calc(100% - (var(--tutorial-arrow-lane-width) * 2));
}

.tutorial-arrow.slick-prev,
.tutorial-arrow.slick-next {
    z-index: 10;
    top: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 44px;
    padding: 0;
    border: 1px solid #9a9a9a;
    border-radius: 9px;
    background: #efefef;
    color: #666;
    font-size: 0;
    line-height: 1;
    text-align: center;
    transform: translateY(-50%);
    transition: opacity 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.tutorial-arrow-icon {
    width: 20px;
    height: 20px;
    display: block;
    object-fit: contain;
    pointer-events: none;
}

.tutorial-arrow.slick-next {
    right: calc((var(--tutorial-arrow-lane-width) - 38px) / 2);
}

.tutorial-arrow.slick-prev {
    left: calc((var(--tutorial-arrow-lane-width) - 38px) / 2);
}

.tutorial-arrow.slick-prev:before,
.tutorial-arrow.slick-next:before {
    content: none;
}

.tutorial-arrow:hover,
.tutorial-arrow:focus {
    background: #fff;
    border-color: #7e7e7e;
    opacity: 1;
}

.tutorial-arrow.slick-disabled {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}