* {
	margin: 0;
	padding: 0;
}

body {
    font-family: "BIZ UDPGothic", sans-serif;
}

/* ==============================================
 * ヘッダ部
 * ============================================== */
/* [tag] header */
header {
    height: 60px;
    background-color: #fdd8ff;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.2);
}

/* [class] header_container */
.header_container {
    max-width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: inherit;
    /*color: transparent;*/
    padding: 0 25px;
    margin-right: auto;
    margin-left: auto;
}

/* [class] header_logo */
.header_logo a {
    text-decoration: none;
    font-size: 30px;
    /*font-family: 'Times New Roman', Times, serif;*/
    color: #7f1184;
}

.header_logo a:link,
.header_logo a:visited {
    color: #7f1184;
}

.header_padding_nav {
    height: 50px;
}

.header_padding_detail {
    height: 60px;
}

/* ==============================================
 * ハンバーガ・ボタン
 * ============================================== */
/* [class] hamburger */
.hamburger {
    width: 40px;
    height: 40px;
    position: relative;
    appearance: menulist-button;
    border-radius: 10%;
    border: 0;
    padding: 5px;
    margin: 0 0 0 auto;
    background-color: #fff;
    background-color: transparent;
    cursor: pointer;
    z-index: 100;
}

/* [class]hamburger -> [tag]span (with before/after) */
.hamburger span,
.hamburger span::before,
.hamburger span::after {
    position: absolute;
    display: block;
    content: "";
    width: 75%;
    height: 3px;
    background-color: #7f1184;
    border-radius: 3px;
    transition: all 0.5s;
    text-align: center;
}
/* bofore特化 */
.hamburger span::before {
    top: -10px;
    width: 100%;
}
/* after特化 */
.hamburger span::after {
    bottom: -10px;
    width: 100%;
}

/* [class]hamburger.open用 */
.hamburger.open span {
    background-color: transparent;
}

.hamburger.open span:before {
    top: 0;
    transform: rotate(45deg);
}

.hamburger.open span:after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* ==============================================
 * メニュー部
 * ============================================== */
/* [tag] nav */
nav {
    position: fixed;
    top: 0px;
    width: 30%;
    max-width: 20em;
    min-width: 12em;
    height: 100%;
    right: -100%;
    z-index: 1;
    overflow-x: hidden;
    overflow-y: auto;
    background-color: rgba(253, 216, 255, 0);

    padding: 2px 0px;
    transition: all 0.5s;
}

nav.open {
    right: 0;
}

.nav_group {
    margin-left: 10px;
}

.nav_title {
    display:block;
    text-decoration: none;
    font-weight: bold;
    background-color: #f67dfc;
    margin-top: 10px;
    padding-left: 2ex;
    padding-top: 12px;
    padding-bottom: 12px;
    box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.2);
    color: #7f1184;
}

.nav_list {
    transition: all 1s;
}

.nav_list.close {
    display: none;
}

.nav_item {
    display: flex;
    padding-left: 3ex;
    padding-top: 10px;
    padding-bottom: 10px;

    text-decoration: none;
    color: #7f1184;
    background-color: #feecff;
    border-left: solid 6px #ee00fb;
    box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.2);
}
.nav_item:hover {
    cursor: pointer;
    background: linear-gradient(90deg, #ffaaff, #feecff);
}

.nav_item a,
.nav_item a:link,
.nav_item a:visited {
    text-decoration: none;
    color: #7f1184;
}

article.url_item {
    padding: 15px;
    padding-left: 2ex;
    margin: 12px;
    background: linear-gradient(90deg, #feecff, white);
    border-radius: 5px;
    box-shadow: 0px 1px 1px rgba(128, 128, 128, 0.2);
}

article.url_item:hover {
    cursor: pointer;
    background: linear-gradient(90deg, #f9e0f9, white);
}

.url_item a,
.url_item a:link,
.url_item_a:visited {
    text-decoration: none;
    color: #7f1184;
}