.header {
    position: fixed;
    z-index: 10000;
    width: 100%;
}

.burger {
    position: absolute;
    z-index: 10002;
    right: 0;
    top: 0;
    width: 68px;
    padding: 16px 14px 12px;
    background: #c5a64b;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    pointer-events: auto;
}

.burger__icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.burger__patty {
    width: 34px;
    height: 3px;
    margin: 0;
    background: #fff;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.burger__label {
    display: block;
    margin-top: 7px;
    font-family: 'Open Sans', 'M PLUS 1p', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.08em;
    line-height: 1;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.burger--close {
    background: transparent;
}

.burger--close .burger__label {
    opacity: 0;
    visibility: hidden;
    margin-top: 0;
    height: 0;
}

.burger--close .burger__icon {
    transform: rotate(180deg);
}

.burger--close .burger__patty:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger--close .burger__patty:nth-child(2) {
    opacity: 0;
}

.burger--close .burger__patty:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -7px);
}

.menu {
    position: fixed;
    top: 0;
    width: 100%;
    visibility: hidden;
}

.menu--active {
    visibility: visible;
}

.menu__brand,
.menu__list {
    display: flex;
    flex-flow: column wrap;
    align-items: center;
    justify-content: center;
    float: left;
    width: 50%;
    height: 100vh;
    overflow: hidden;
}

.menu__list {
    margin: 0;
    padding: 30px 20px;
    background: #c4a44b;
    list-style-type: none;
    transform: translate3d(0, -100%, 0);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-sizing: border-box;
}

.menu__list--active {
    transform: translate3d(0, 0, 0);
}

.menu__brand {
    background: #fff;
    transform: translate3d(0, 100%, 0);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.menu__brand--active {
    transform: translate3d(0, 0, 0);
}

.menu__brand a {
    display: block;
    line-height: 0;
}

.menu__logo-circle {
    width: 55%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.menu__logo {
    width: 100%;
    height: auto;
}

.menu__brand a:hover .menu__logo {
    transform: none;
}

.menu__item {
    width: 100%;
    text-align: center;
    transform: translate3d(500px, 0, 0);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.menu__item--active {
    transform: translate3d(0, 0, 0);
}

.menu__item:nth-child(1) { transition-delay: 0.1s; }
.menu__item:nth-child(2) { transition-delay: 0.2s; }
.menu__item:nth-child(3) { transition-delay: 0.3s; }
.menu__item:nth-child(4) { transition-delay: 0.4s; }
.menu__item:nth-child(5) { transition-delay: 0.5s; }
.menu__item:nth-child(6) { transition-delay: 0.6s; }
.menu__item:nth-child(7) { transition-delay: 0.7s; }
.menu__item:nth-child(8) { transition-delay: 0.8s; }

.menu__link {
    display: inline-block;
    position: relative;
    font-family: 'Open Sans', 'M PLUS 1p', sans-serif;
    font-size: 28px;
    padding: 11px 24px;
    font-weight: 300;
    color: #fff;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    -webkit-font-smoothing: antialiased;    line-height: 1.4em;
    font-weight: 400;
}

.menu__link::before {
    content: "";
    position: absolute;
    bottom: 6px;
    left: 50%;
    width: 10px;
    height: 2px;
    background: #fff;
    transform: translateX(-50%);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.menu__link:hover::before {
    width: calc(100% - 48px);
}

body.is-menu-open {
    overflow: hidden;
}

body.is-menu-open #top_btn {
    opacity: 0;
    pointer-events: none;
}

@media screen and (max-width: 768px) {
    
    .burger--close .burger__patty {

    background:#c4a44b;
}
    
    .burger {
        right: 0;
        top: 0;
        width: 60px;
        padding: 14px 12px 10px;
    }

    .burger__patty {
        width: 40px;
        height: 3px;
    }

    .burger__label {
        font-size: 10px;
        margin-top: 6px;
    }

    ul.menu__list,
    div.menu__brand {
        float: none;
        width: 100%;
        min-height: 0;
    }

    ul.menu__list.menu__list--active,
    div.menu__brand.menu__brand--active {
        transform: translate3d(0, 0, 0);
    }

    .menu__list {
        height: 75vh;
        padding: 20px 16px;
        transform: translate3d(-100%, 0, 0);
    }

    .menu__link {
        font-size: 20px;
        padding: 8px 16px;
    }

    .menu__link::before {
        bottom: 4px;
    }

    .menu__link:hover::before {
        width: calc(100% - 32px);
    }

    .menu__brand {
        height: 25vh;
        transform: translate3d(100%, 0, 0);
    }

    .menu__logo-circle {
        width: 45%;
    }
}