@charset "utf-8";

img {
    opacity: 1.0;
}


div {
    color: #5c3919;
    text-align: center;
}

body {
    background: url("shiro.jpeg");
}


.font-main {
    padding: 2px;
}

#btn1 {
    margin-bottom: 4px;
}

.title {
    font-family: "Courier New";
    font-size: 30px;
    line-height: 700px;
    letter-spacing: 2px;
}


.shadow_test {
    filter: drop-shadow(2px 2px 2px rgba(50, 50, 50, 0.8));
}

.portfolio {
    text-align: left;
    position: fixed;
    padding: 0px 0;
}

.return_top {
    position: fixed;
    padding-top: 60%;
}

.atcoder {
    text-align: left;
    position: fixed;
    padding: 0px 0;
}

.instagram {
    text-align: left;
    position: fixed;
    padding: 0px 0;
}

.twitter {
    text-align: left;
    position: fixed;
    padding: 0px 3px;
}

.aboutme {
    font-family: "Courier New";
    font-size: 15px;
}

.profile01 {
    font-family: "ヒラギノ角ゴ ProN W6";
    font-size: 15px;
    text-align: center;
    padding-top: 300px;
    line-height: 2;
}

.h1 {
    font-family: "ヒラギノ角ゴ ProN W6";
    font-size: 20px;
    text-align: center;
    padding: 20px;
}

.size_text {
    font-size: 30px;
    font-family: "ヒラギノ角ゴ ProN W6";
}

.size_text3 {
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
}

.size_text2 {
    text-align: left;
    font-size: 12px;
    font-family: "ヒラギノ角ゴ ProN W6";
}

nav {
    width: 100%;
    height: 50px;
    background-color: #5c3919;
    opacity: 0.7;
    padding-top: 0px;
    box-sizing: border-box;
    position: fixed;
    top: 0;
    left: 0;
}

a {
    display: block;
    text-decoration: none;
    color: white;
    margin-right: 35px;
}

a:hover {
    color: black;
}

ul {
    display: flex;
    list-style-type: none;
}

ol {
    list-style-type: none;
}

.slide-container {
    opacity: 0.7;
    width: 100%;
    margin: 50px auto;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.slide-wrapper {
    display: flex;
    animation: slide-flow 40s infinite linear 1s both;
}

.slide {
    width: 100px;
    object-fit: cover;
    border: 1px;
}

@keyframes slide-flow {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-100%);
    }
}

.blog {
    text-align: center;
    font-size: 30px;
    font-family: "ヒラギノ角ゴ ProN W6";
}

.blog_body {
    text-align: center;
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
}

/*タイトルの浮上アニメーション*/
.textArea {
    overflow: hidden;
    font-family: "Courier New";
    font-size: 30px;
    letter-spacing: 2px;
    padding: 180px;
}

.textArea video {
    display: inline-block;
    width: 100%;
    position: absolute;
    left: 0;
    top: -50%;
    pointer-events: none;
    background-color: white;
    transform: scale(-1, -1);
    mix-blend-mode: screen;
    animation: opacity 0.2s both;
    animation-delay: 5s;
}

.textArea .text {
    filter: blur(10px);
    opacity: 0;
    animation: blur 5s both;
}

.is-act .text {
    animation: blur 5s both;
}

.is-act .textArea video {
    mix-blend-mode: screen;
    animation: opacity 0.2s both;
    animation-delay: 5s;
}

@keyframes blur {
    0% {
        opacity: 0;
        filter: blur(10px);
    }

    100% {
        opacity: 1;
        filter: blur(0);
    }
}

@keyframes opacity {
    100% {
        opacity: 0;
    }
}

/*記事の遷移アニメーション*/

.ly_section {
    padding: 100px 0;
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
}

.ly_section_inner {
    max-width: 1030px;
    padding: 0 15px;
    margin: 0 auto;
}

.el_lv2Heading {
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
    font-size: 3rem;
    text-align: center;
    margin-bottom: 70px;
}

/*ここから3カラム記事エリアのスタイリング*/
.card_items {
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

.card_items>li {
    width: 31%;
    margin-right: 3.5%;
    margin-bottom: 35px;
}

.card_items>li:nth-of-type(3n) {
    margin-right: 0;
}

.card_item {
    position: relative;
    display: block;
    -webkit-box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
}

/*画像エリアのスタイリング*/
.card_item:hover .card_item_imgWrapper::before {
    opacity: 1;
}

.card_item:hover .card_item_imgWrapper::after {
    content: "Read More";
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    opacity: 1;
}

.card_item_imgWrapper {
    position: relative;
    padding-top: 50%;
    overflow: hidden;
}

.card_item_imgWrapper::before,
.card_item_imgWrapper::after {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color: #fafafa;
    background-color: rgba(0, 0, 0, 0.4);
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
    -webkit-transition: opacity .5s;
    transition: opacity .5s;
    opacity: 0;
}

.card_item_imgWrapper>img {
    position: absolute;
    top: 50%;
    left: 0%;
    width: 100%;
    height: 100%;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    -o-object-fit: cover;
    object-fit: cover;
}

/*日時、タイトル、抜粋文テキスト部分のスタイリング*/
.card_item_body {
    height: 160px;
    padding: 15px;
}

.card_item_body>.card_item_time {
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
    margin-bottom: 5px;
    display: block;
}

.card_item_body>.card_item_ttl {
    color: #333;
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
    font-weight: bold;
    line-height: 1.5;
    margin-bottom: 5px;
    overflow-x: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.card_item_body>.card_item_txt {
    color: #777;
    font-size: 15px;
    font-family: "ヒラギノ角ゴ ProN W6";
    line-height: 1.5;
    margin-bottom: 10px;
}

/*topに戻るボタン*/

html {
    scroll-behavior: smooth;
}

.pagetop {
    height: 50px;
    width: 50px;
    position: fixed;
    right: 30px;
    bottom: 30px;
    background: #fff;
    border: solid 2px #5c3919;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.pagetop__arrow {
    height: 10px;
    width: 10px;
    border-top: 3px solid #5c3919;
    border-right: 3px solid #5c3919;
    transform: translateY(20%) rotate(-45deg);
}