@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

body {
    padding: 0 2%;
    font-family: 'Noto Sans JP', sans-serif;
}
nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    background-color: white;
    position: sticky;
    top: 0;
}
nav .profile {
    display: flex;
    align-items: center;
}
nav .profile img {
    width: 40px;
    height: 40;
    border-radius: 50%;
}
nav .profile h1 {
    margin-left: 10px;
    font-size: 15px;
}
nav ul {
    display: flex;
    list-style-type: none;
}
nav ul li {
    margin-left: 10px;
    cursor: pointer;
    border-bottom: 1px solid #fff;
}
nav ul li:hover {
    border-bottom-color: #000;
}

.page-content {
    margin: 4%;
}
.page-content header {
    margin-top: 5%;
    max-width: 80%;
}
.page-content header h1 {
    margin: 0;
    font-family: 'Oswald', sans-serif;
}
.page-content header h4 {
    margin: 0;
    color: red;
}
.page-content header p {
    line-height: 20px;
    color: #818181;
}
.page-content header button {
    background-color: inherit;
    border: none;
    outline: none;
    font-size: 15px;
    font-weight: bold;
    padding-bottom: 5px;
    border-bottom: 1px solid #ccc;
    cursor: pointer;
}
.page-content header button:hover {
    color: #ccc;
    border-bottom-color: #000 ;
}

.presentation-image img {
    margin-top: 5%;
}
.presentation-image img {
    max-width: 100%;
    height: auto;
    transition: filter 0.5s;
}
/*.presentation-image img:hover {
    filter: brightness(50%);
}*/
.projects-section {
    margin-top: 6%;
}
.projects-section h1 {
font-family: 'Oswald', sans-serif;
text-transform: uppercase;
font-size: 3vw;
}
.projects-section .projects {
    display: flex;
    flex-wrap: wrap;
}
.projects-section .projects .project {
    margin-right: 30px;
    max-width: 195px;
}

@media screen and (max-width: 700px) {
    nav {
        justify-content: center;
    }
    nav ul {
        display: none;
    }

    .page-content header {
        margin-top: 10%;
        max-width: 100%;
    }
}