@charset "UTF-8";

/*　共通部分
----------------------------------------- */
html {
    font-size: 100%;
}
body{
    font-family: "Yu Gothic Medium", "游ゴシック Medium", "YuGOthic", "游ゴシック体", "ヒラギノ角ゴ Pro W3", "sans-serif";
    line-height: 1;
    color: black;
}
a {
    text-decoration: none;
}
img {
    max-width: 100%;
}

/* HEADER
------------------------------------------- */
.logo {
    width: 210px;
    margin-top: 14px;
}
.main-nav {
    display: flex;
    font-size: 1.25rem;
    text-transform: uppercase;
    margin-top: 34px;
    list-style: none;
}
.main-nav li {
    margin-left: 36px;
}
.main-nav a {
    color: black;
}
.main-nav a:hover {
    color: #0bd;
}
.page-header {
    display: flex;
    justify-content: space-between;
}
.wrapper {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 4%;
}
/* HOME
---------------------------------------------- */
.home-content {
    text-align: left;
    margin-top: 10%;
    font-size: 1.5rem;
    font-weight: normal;
}
.home-content p {
    font-size: 1.7rem;
    margin: 10px 0 42px;
}
/* 見出し　*/
.page-title {
    font-size:3rem;
/*    font-family: 'Philosopher', serif;*/
    text-transform: uppercase;
    font-weight: bold;
}
/* ボタン */
.button {
    font-size: 1.375rem;
    background: #0bd;
    color: #fff;
    border-radius: 5px;
    padding: 18px 32px;
}
.button:hover {
    background: #0090aa;
}

/* 大きな背景画像 */
.big-bg {
    background-size: cover;
    background-position: center top;
}
#home {
    min-height: 100vh;
}
#home .page-title {
    text-transform: none;
}

/* LECTURES
-------------------------------------- */
#lectures {
    height: 270px;
    margin-bottom: 40px;
}
#lectures .page-title {
    text-alight: center;
}

article {
    width: 48%;
    font-size: 1.5rem;
    font-weight: bold;
}

aside {
    width: 48%;
    font-size: 1.5rem;
    font-weight: bold;
}

.lecture-contents {
    display: flex; 
    justify-content: space-between;
    margin-bottom: 50px;
}

/* For mobile
-------------------------------- */
@media (max-width: 600px) {
    .page-title {
	font-size: 2.5rem;
    }

    /* HEADER */
    .main-nav {
	font-size: 1rem;
	margin-top: 10px;
    }
    .main-nav li {
	margin: 0 20 px;
    }

    /* HOME */
    .home-content {
	margin-top: 20%;
    }

    .page-header {
	flex-direction: column;
	align-items: center;
    }

    /* LECTURES */
    .lecture-contents {
	flex-direction: column;
    }
    article, aside {
	width: 100%;
    }

    #lectures .page-title {
	margin-top: 30px;
    }
    aside {
	margin-top: 60px;
    }
}