@charset "utf-8";

#header {
    width: 100%;
}
#header .header_top {
    width: 100%;
    height: var(--header-height);
    border-bottom: 1px solid var(--color-black);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
}
#header .header_top .inner {
    height: 100%;
}
#header .header_flex {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
#header .logo_wrapper {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}
#header h1 {
    font-size: 4rem;
    font-weight: 700;
}
#header .header_info {
    height: 100%;
    display: flex;
    gap: 3.5rem;
    align-items: center;
}
#header .header_info .today_wrap {
    font-size: 1.8rem;
}
#header_menu_btn {
    height: var(--header-height);
    aspect-ratio: 1;
    background-color: var(--color-red);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    z-index: 9999;
}
#header_open_menu {
    background-color: #fffffff1;
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 3rem;
    opacity: 0;
    transition: opacity .2s;
    pointer-events: none;
}
#header_open_menu.is_active {
    opacity: 1;
    pointer-events: auto;
}
#header_open_menu .header_open_logo {
    font-size: 3.6rem;
    font-weight: 700;
    margin-bottom: 4.5rem;
}
#header_open_menu .header_open_logo {
    font-size: 3.6rem;
    font-weight: 700;
    margin-bottom: 4.5rem;
}
#header_open_menu .header_open_link_wrapper {
    display: flex;
    gap: 4rem;
}
#header_open_menu .header_open_link_column {
    width: fit-content;
    min-width: 200px;
}
.column_label {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
}
#header_open_menu .header_open_menu_link {
    padding-left: 1.5rem;
}
#header_open_menu .header_open_menu_link li:not(:last-child) {
    margin-bottom: 2rem;
}
#header_open_menu .header_open_menu_link a {
    transition: opacity .2s;
}
#header_open_menu .header_open_menu_link a:hover {
    opacity: .6;
}
#header_open_menu .header_open_menu_link a.blank {
    position: relative;
}
#header_open_menu .header_open_menu_link a.blank::after {
    content: '';
    width: 16px;
    height: 14px;
    background-image: url('../images/blank_tab_black.svg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    position: absolute;
    top: -1px;
    display: inline-block;
}
.btn_line {
    width: 55%;
    position: relative;
}
.btn_line i {
    width: 100%;
    height: 2px;
    background-color: #fff;
    display: block;
    position: relative;
    transition-property: top, transform, opacity;
    transition-duration: 0.25s, 0.25s, 0.2s;
    transition-timing-function: ease;
}
.btn_line i:nth-child(1) {
    top: -1.3rem;
    transform: rotate(0deg);
    opacity: 1;
    transition-delay: 0.25s, 0s, 0s;
}

.btn_line i:nth-child(2) {
    top: 0;
    opacity: 1;
    transition-delay: 0s, 0s, 0.25s;
}

.btn_line i:nth-child(3) {
    top: 1.3rem;
    transform: rotate(0deg);
    opacity: 1;
    transition-delay: 0.25s, 0s, 0s;
}

/* --------------------
  ON（is_active）
  top → rotate → opacity
-------------------- */
#header_menu_btn.is_active .btn_line i:nth-child(1) {
    top: 0;
    transform: rotate(-45deg);

    /* top 即 / rotate 遅延 */
    transition-delay: 0s, 0.25s, 0s;
}

#header_menu_btn.is_active .btn_line i:nth-child(2) {
    opacity: 0;

    /* rotate が終わってから消す */
    transition-delay: 0s, 0s, 0.25s;
}

#header_menu_btn.is_active .btn_line i:nth-child(3) {
    top: 0;
    transform: rotate(45deg);

    transition-delay: 0s, 0.25s, 0s;
}
#header_menu_btn.is_active .btn_line i:nth-child(1) {
    position: absolute;
    top: 0;
    transform: rotate(-45deg);
    transition-delay: 0s, 0.25s, 0s;
}
#header_menu_btn.is_active .btn_line i:nth-child(2) {
    opacity: 0;
    transition-delay: 0s, 0.25s, 0s;
}
#header_menu_btn.is_active .btn_line i:nth-child(3) {
    position: absolute;
    top: 0;
    transform: rotate(45deg);
    transition-delay: 0s, 0.25s, 0s;
}

@media screen and (max-width: 1024px) {
    .logo_desc {
        display: none;
    }
}
@media screen and (max-width: 820px) {
    #header .inner {
        width: 95%;
        margin: 0 0 0 auto
    }
    .header_open_menu_inner {
        padding-inline: 4rem;
    }
    .header_open_logo {
        text-align: center;
    }
    #header_open_menu .header_open_link_wrapper {  display: grid;
        grid-template-columns: auto auto;
        grid-template-rows: auto auto;
        grid-auto-columns: 1fr;
        gap: 5rem 2rem;
        grid-auto-flow: row;
        grid-template-areas:
            "left_menu right_menu01"
            "left_menu right_menu_02";
    }
    .left_menu { grid-area: left_menu; }
    .right_menu01 { grid-area: right_menu01; }
    .right_menu_02 { grid-area: right_menu_02; }
}

@media screen and (max-width: 520px) {
    #header h1 {
        font-size: 2.9rem;
    }
    #header .header_info .today_wrap {
        display: none;
    }
    .btn_line i:nth-child(1) {
        top: -0.9rem;
    }
    .btn_line i:nth-child(3) {
        top: 0.9rem;
    }
    #header_open_menu {
        display: block;
        padding-bottom: 0;
    }
    .header_open_menu_inner {
        margin-top: 8rem;
        height: calc(100% - 8rem);
        overflow-y: auto;
    }
    .header_open_logo {
        padding-top: 2rem;;
    }
    #header_open_menu .header_open_link_wrapper {
        display: flex;
        flex-direction: column;
        padding-bottom: 10rem;
    }
}