* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans JP', Meiryo, sans-serif;

    --font-size-small: 14px;
    --font-size-text: 16px;
    --font-size-mid: 24px;
    --font-size-large: 26px;
    --font-size-extra: 32px;

    --color-text: #181818;
    --color-nav-selected: #fffef4;
    --color-services-background: #dbeefa;
    --color-footer-background: rgb(56, 56, 56);

    --padding-header-top-bottom: 10px;
    --padding-header-left-right: 15px;

    --padding-main-top-bottom: 50px;
    --padding-main-left-right: 50px;

    --header-height: 70px;
    --header-logo-width: 70px;
    --header-burger-width: 50px;
}

a {text-decoration: none;}

img {
    display: block;
}

.container {
    display: grid;
    grid-template-columns: auto;
    grid-template-rows: auto auto auto auto;
    grid-template-areas: 
        "main"
        "services"
        "access"
        "footer";
    overflow-x: hidden;
}

/* HEADER */

.header {
    position: fixed;
    z-index: 1000;
    width: 100%;

    display: grid;
    grid-template-columns: var(--header-logo-width) auto calc(var(--header-burger-width) + 20px);
    grid-template-rows: var(--header-height);
    grid-template-areas: 
        "company-name burger-menu";
    
    background-color: #fff;
    border-bottom: 1px solid black;
}

.logo {
    display: flex;
    justify-content: center;
}

.logo img {
    width: var(--header-logo-width);
    margin: auto;
}

.company-name {
    display: flex;
    align-items: center;

    font-family: "Noto Serif JP", serif;
    font-size: var(--font-size-large);
    font-weight: 550;
}

#burger-menu {
    display: flex;
    justify-content: center;
}

#burger-menu img {
    width: var(--header-burger-width);
    margin: auto;
}

#close {
    display: none;
}

/* HEADER */

.header-link {
    display: none;
}

#hidden-menu {
    display: none;

    position: fixed;
    z-index: 1000;
    top: var(--header-height);

    background-color: rgba(255, 255, 255, .8);
    backdrop-filter: blur(10px);
    width: 100%;

    text-align: center;
}

#hidden-menu ul {
    padding: 50px 0;
    border-bottom: 1px solid black;
}

#hidden-menu li {
    padding: 20px;
}

#hidden-menu li a {
    font-size: var(--font-size-large);
    color: var(--color-text);
    position: relative;
    padding: 10px;
}

#hidden-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    transition: width 0.3s ease;
}

#hidden-menu li a:hover::after {
    width: 100%;
}

@media (min-width: 992px) {
    #hidden-menu {
        display: none;
        z-index: -1;
    }

    .header {
        grid-template-columns: var(--header-logo-width) auto 100px 100px 100px 100px 20px;
        grid-template-areas: 
            "company-name link1 link2 link3 link4";
    }

    #burger-menu {
        display: none;
    }

    .header-link {
        display: block;
        text-align: center;
        align-content: center;
    }
    
    .header-link a {
        padding: 10px;
        color: var(--color-text);
        position: relative;
    }

    .header-link a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 1px;
        background-color: var(--color-text);
        transition: width 0.3s ease;
    }

    .header-link a:hover::after {
        width: 100%;
    }
}

/* MAIN */

.main {
    margin-top: var(--header-height);
    background-color: #fff;
    padding: var(--padding-main-top-bottom) var(--padding-main-left-right) calc(var(--padding-main-top-bottom)/2) var(--padding-main-left-right);

    display: flex;
    justify-content: center;
}

.main-grid {
    max-width: 768px;

    display: grid;
    grid-template-columns: auto auto;
    grid-template-rows: auto auto auto auto;
    grid-template-areas: 
        "slogan slogan"
        "description woman"
        "description woman"
        "button button";
}

.slogan {
    grid-area: slogan;
    display: flex;
    justify-content: left;
    align-items: center;  
}

.slogan h1 {
    font-family: "Noto Serif JP", serif;
    font-size: var(--font-size-large);
}

.description {
    grid-area: description;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 500px;
}

.description p {
    background-color: var(--color-nav-selected);
    margin-top: 20px;
    padding: 20px;
    border: 1px solid black;
    border-radius: 8px;
}

.woman {
    grid-area: woman;
    height: 0;
}

.woman img {
    position: relative;
    top: 40px;
    left: -15px;
    height: 35vw;
}

.btn {
    grid-area: button;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999; /* needed to prevent image overlapping */

    font-family: "Noto Serif JP", serif;
    color: var(--color-text);
    
    margin-top: 20px;
    padding: 10px 20px;

    border: 1px solid black;
    border-radius: 30px;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 5px rgba(0,0,0,0.15);
}

@media (min-width: 480px) {
    .woman img {
        top: 20px;
        height: 30vw;
    }
}

@media (min-width: 540px) {
    .main-grid {
    grid-template-areas: 
        "slogan slogan"
        "description woman"
        "description woman"
        "button .";
    }

    .slogan h1 {
        font-size: var(--font-size-large);
    }

    .woman img {
        top: 0px;
    }
}

@media (min-width:640px) {
    .woman img {
        top: -20px;
    }
}

@media (min-width: 768px) {
    .slogan h1 {
        font-family: "Noto Serif JP", serif;
        font-size: var(--font-size-extra);
    }
    .woman img {
        position: relative;
        top: -100px;
        left: -20px;
        height: 35vw;
        max-height: 300px;
    }
}


/* SERVICES */

.services {
    background-color: var(--color-services-background);
}

.services-grid {
    padding: 170px 5vw 50px 5vw;
    display: grid;
    grid-template-columns: auto;
    grid-template-rows: auto auto auto;
    grid-template-areas: 
        "card1"
        "card2"
        "card3";
    gap: 170px 0;
}

.service-card {
    background-color: #fff;
    border-radius: 20px;
    border: 1px solid black;
    height: fit-content;
}

.service-card h2 {
    font-size: var(--font-size-extra);
    text-align: center;
    padding: 30px 0 20px 0;
}

.service-card p {
    padding: 0 30px;
}

.service-btn-container {
    display: flex;
    justify-content: center;
    padding: 30px 0;
}

.service-btn {
    text-decoration: none;
    color: var(--color-text);

    padding: 10px 20px;

    border: 1px solid black;
    border-radius: 30px;
}

.service-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 5px rgba(0,0,0,0.15);
}

.consulting-img {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 0;
}

.consulting-img img {
    height: 155px;
    position: relative;
    top: -73px;
}

.counting-img {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 0;
}

.counting-img img {
    height: 155px;
    position: relative;
    top: -57px;
}

.goup-img {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 0;
}

.goup-img img {
    height: 155px;
    position: relative;
    top: -54px;
    left: -45px;
}


@media (min-width: 480px) {
    .services-grid {
        padding-left: 8vw;
        padding-right: 8vw;
    }
}

@media (min-width: 540px) {
    .services-grid {
        padding-left: 10vw;
        padding-right: 10vw;
    }
}

@media (min-width:640px) {
    .services-grid {
        padding-left: 12vw;
        padding-right: 12vw;
    }
}

@media (min-width: 768px) {
    .services-grid {
        padding-left: 15vw;
        padding-right: 15vw;
    }
}

@media (min-width: 1200px) {
    .services-grid {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        grid-template-rows: auto;
        gap: 0 2.5vw;
        padding-left: 5vw;
        padding-right: 5vw;
        padding-bottom: 0px;
    }
}

/* ACCESS */

.access {
    background-color: #fff;
}

.access-grid {
    padding: 50px 10vw 0 10vw;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.office-info p {
    display: flex;
    justify-content: left;
    align-items: center;
}

.office-info p img {
    display: inline-block;
    width: 20px;
    margin-right: 5px;
}

.map {
    border: 1px solid black;
}

/* FOOTER */

footer {
    background-color: var(--color-footer-background);
    color: #aaa;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;

    padding: 0 10vw;
}

.footer-col h2 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #aaa;
}

.footer-col ul li a:hover {
    color: white;
}

.copyright {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid #444;
    font-size: var(--font-size-small);
}