@charset "UTF-8";

/* ---------------------------------------
    root
--------------------------------------- */
:root {
    --c_base: #FFFFFF;
    --c_accent: #000000;
    --f_base: "Noto Sans SC", sans-serif;
    --fw__demi: 250;
    --fw__medium: 330;
    --fs__h2: 32px;
    --fs__h3: 24px;
    --fs__h4: 20px;
    --fs__h5: 18px;
    --animation: ease-out;
}

/* ---------------------------------------
    base
--------------------------------------- */
html {
    overflow-x: hidden;

}

.body {
    color: var(--c_white);
    font-family: var(--f_base);
    font-size: 16px;
    font-weight: var(--fw__demi);
    line-height: 30px;
}

.no-scroll {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
}

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

.container {
    margin: 0 30px;
}

[id] {
    scroll-margin-top: 20px;
}

#service {
    scroll-margin-top: -30px;
}

#cta {
    scroll-margin-top: 60px;
}

@media (min-width: 768px) {
    #service {
        scroll-margin-top: -180px;
    }

    #q-a {
        scroll-margin-top: 210px;
    }

    #cta {
        scroll-margin-top: inherit;
    }
}

@media (min-width: 768px) {
    .container {
        margin: 0 auto;
        max-width: 1120px;
        padding: 0 60px;
    }
}

h2 {
    font-size: var(--fs__h2);
}

h3 {
    font-size: var(--fs__h3);
}

h4 {
    font-size: var(--fs__h4);
}

.sp__none {
    display: none;
}

@media (min-width: 768px) {
    .pc_none {
        display: none;
    }
}

.inview {
    opacity: 0;
    transition: opacity 1.2s ease-in;
}

.show {
    opacity: 1;
}

/* ---------------------------------------
    header
--------------------------------------- */
header {
    background-color: var(--c_base);
    position: fixed;
    top: 0;
    height: 70px;
    display: flex;
    align-items: center;
    padding: 0 30px;
    justify-content: space-between;
    width: 100vw;
    z-index: 30;
    box-shadow: 0 3px 6px rgba(00, 00, 00, 0.16);
}

.header__logo {
    width: 105px;
}

.header-nav {
    display: none;
}

.header-nav__item {
    opacity: 1;
    transition: all 0.3s var(--animation);
}

.header-nav__item:hover {
    opacity: 0.5;
}

@media (min-width: 768px) {
    .header {
        margin-left: 70px;
        margin-right: 30px;
    }

    .header-nav {
        display: flex;
        gap: 50px;
        align-items: center;
    }

    .header-nav__list {
        display: flex;
        gap: 50px;
    }

    .header__contact-button {
        padding: 11px 60px;
        color: var(--c_base);
        background-color: var(--c_accent);
        border-radius: 24px;
        font-size: var(--fs__h4);
        font-weight: var(--fw__medium);
        transition: opacity 0.3s var(--animation);
    }

    .header__contact-button:hover {
        cursor: pointer;
        opacity: 0.8;
    }
}

/* ---------------------------------------
    hamburger
--------------------------------------- */
.hamburger {
    position: relative;
    width: 24px;
    height: 24px;
}

.hamburger span {
    position: absolute;
    display: block;
    width: 100%;
    height: 4px;
    top: 50%;
    right: 0;
    background-color: var(--c_accent);
    transition: all 0.3s var(--animation);
}

.hamburger span:nth-child(1) {
    top: 0;
}

.hamburger span:nth-child(2) {
    transform: translateY(-50%);
}

.hamburger span:nth-child(3) {
    top: 100%;
    transform: translateY(-100%);
}

.hamburger.active span {
    top: 50%;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(-50%) rotate(45deg);
    top: 50%;
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-50%) rotate(-45deg);
}

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }
}

/* ---------------------------------------
    nav
--------------------------------------- */
.nav-layer {
    background-color: var(--c_base);
    position: fixed;
    top: 70px;
    display: block;
    width: 100vw;
    height: 100vh;
    z-index: 29;
    transform: translateY(-100%);
    transition: all 0.5s var(--animation);
}

.nav-layer.active {
    transform: translateY(0);
}

.layer-nav {
    position: absolute;
    top: 40vh;
    width: 100%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 100px;
    align-items: center;
    font-size: var(--fs__h4);
}

.layer-nav__list {
    display: flex;
    flex-direction: column;
    gap: 50px;
    text-align: center;
    font-size: var(--fs__h4);
}

.layer__contact-button {
    padding: 22px 0;
    width: 100%;
    text-align: center;
    color: var(--c_base);
    background-color: var(--c_accent);
    border-radius: 36px;
    font-weight: var(--fw__medium);
    max-width: 315px;
}


@media (min-width: 768px) {
    .nav-layer {
        display: none;
    }
}

/* ---------------------------------------
    footer 
--------------------------------------- */
.footer {
    margin: 35px auto 157px;
    text-align: center;
}

.footer-logo {
    width: 124px;
    margin: 0 auto;
}

.footer small {
    margin-top: 12px;
    font-size: 10px;
}

@media (min-width: 768px) {
    .footer {
        margin: 81px auto 137px;
    }
}