/* font import */
@import url('https://fonts.googleapis.com/css?family=Quicksand:300,400,500,700');

/* layout */
body {
    font-family: 'Quicksand', Arial, sans-serif;
    font-size: 20px;
    background: #EFECE7;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}
.main-container {
    width: 90%;
    margin: auto;
    overflow: hidden;
    padding-top: 100px;
    margin-bottom: 50px;
}

/* header */
header {
    position: fixed;
    top: 0;
    height: 100px; /* ヘッダーの高さを100pxに固定 */
    width: 100%;
    background: #000000;
    color: #EFECE7;
    padding: 0; /* パディングをリセット */
    border-bottom: #000000 3px solid;
    z-index: 1000;
}
.container {
    width: 90%;
    margin: auto;
    overflow: hidden;
}
.header-content {
    display: flex;
    justify-content: space-between;
    height: 100%;
}
.logo {
    width: 50px;
    height: 50px;
    margin-top: 0px;
    margin-right: 15px;
}
header h1 {
    font-size: 2em;
    margin-top: 20px;
    display: flex;
    align-items: center;
}
nav ul {
    list-style: none;
    padding: 0;
    height: 50px;
    margin-top: 25px;
    display: flex;
    align-items: center;
}
nav li {
    font-size: 1.2em;
    margin-left: 30px;
    align-items: center;
}
nav a {
    color: #EFECE7; /* 通常のリンクの色 */
    text-decoration: none;
}
nav a:visited {
    color: #EFECE7; /* 訪問済みリンクの色 */
}

.cat-profile {
    display: flex;
    align-items: center;
}
.cat-photo {
    width: 400px;
    height: auto;
    margin-top: 50px;
    margin-right: 50px;
}
.cat-info {
    flex: 1;
}
.cat-info h2 {
    margin: 0;
    font-size: 1.5em;
}
.cat-info p {
    margin: 5px 0 0;
}

/* bottom navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #f8f8f8;
    border-top: 1px solid #e7e7e7;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
}
.bottom-nav a {
    text-decoration: none;
    color: #000000;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.bottom-nav img {
    width: 24px;
    height: 24px;
    margin-bottom: 5px;
}
.bottom-nav span {
    color: #000000;
    font-size: 12px;
}

.cat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    padding: 20px;
}
.cat-item img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}


/* pc & tablet */
@media screen and (min-width: 768px) {
    html {
        scroll-padding-top: 80px;
        scroll-behavior: smooth;
    }
    header {
        position: fixed;
        top: 0;
        left: 0;
        height: 100px;
        width: 100%;
        z-index: 1000;
    }
    .bottom-nav {
        display: none;
    }
}

/* smartphone */
@media screen and (max-width: 768px) {
    body {
        font-size: 12px;
    }
    .main-container {
        padding-top: 80px;
        margin-bottom: 80px;
    }
    header {
        position: fixed;
        top: 0;
        height: 70px; /* ヘッダーの高さを100pxに固定 */
        width: 100%;
        background: #000000;
        color: #EFECE7;
        padding: 0; /* パディングをリセット */
        border-bottom: #000000 3px solid;
        z-index: 1000;
    }
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    header h1 {
        font-size: 2em;
        margin-top: 10px;
        display: flex;
        align-items: center;
    }
    .logo {
        margin-right: 10px;
        margin-bottom: 10px;    
    }
    nav {
        display: none;
    }
    .container{
        margin-bottom: 80px;
    }
    .content{
        margin-top: 20px;
    }
    .title {
        font-size: 1.5em;
    }
    .cat-photo {
        width: 150px;
        height: auto;
        margin-top: 10px;
        margin-right: 20px;
    }
    .cat-info h2 {
        font-size: 1.2em;
    }
    .cat-grid {
        grid-template-columns: repeat(1, 1fr);
        gap: 10px;
    }
}