@font-face {
    font-family: 'NIXGONM-Vb';
    src: url('https://fastly.jsdelivr.net/gh/projectnoonnu/noonfonts_six@1.2/NIXGONM-Vb.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

body {
    font-family: 'NIXGONM-Vb', sans-serif;
    background-color: #FFFFFF;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background-color: #FFFFFF;
    color: #413E3E;
    padding: 50px;
    text-align: center;
    margin-bottom: 20px;
}

.header-content {
    text-align: right;
}

div.heading {
    font-weight: bold;
    margin-top: 4ch;
}

div.profile-text {
    color: #000000;
    font-weight: 100;
    font-size: 19px;
    text-align: justify;
    line-height: 2.0;
}

main {
    padding: 0 50px;
    text-align: left;
    max-width: 980px;
    margin: 0 auto;
}

h1, h2 {
    margin: 0;
    font-weight: 500;
    margin-bottom: 10px;
}

h3 {
    color: #000000;
    font-weight: 1000;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin-bottom: 10px;
}

.about-me-link {
    position: relative;
    display: inline-block;
    color: #000000;
    text-decoration: none;
}

.about-me-link::after {
    bottom: 2px;
}

.profile-image {
    float: right;
    margin-left: 90px;
    width: 240px;
    height: auto;
}

.post {
    margin-bottom: 20px;
    display: flex;
}

.post-list {
    clear: both;
    margin-top: 55px;
}

.post-title {
    color: #413E3E;
    font-size: 25px;
    margin-bottom: 5px;
}

.post-title a:link, .post-title a:visited {
    text-decoration: underline;
    text-decoration-color: #ff6800;
    text-underline-offset: 7px;
    text-decoration-thickness: 1px;
}

.post-title a::after {
    display: none;
}

.post-description {
    font-size: 17px;
    line-height: 1.6;
}

.post-image {
    margin-left: 20px;
    width: auto;
    height: 200px;
}

a:link, a:visited {
    color: inherit;
    text-decoration: none;
    position: relative;
}

a::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -5px;
    height: 1px;
    background-color: #ff6800;
}

.date {
    top: 110px;
    font-size: 16px;
    color: #888;
    font-style: italic;
}

.bold-light       { font-weight: 300; }
.bold-regular     { font-weight: 400; }
.bold-medium      { font-weight: 500; }
.bold-semi-bold   { font-weight: 600; }
.bold-bold        { font-weight: 700; }
.bold-extra-bold  { font-weight: 1000; }

::selection {
    background-color: #fff2cf;
    color: #000000;
}

.math-indent {
    display: block;
    text-align: center;
    font-size: 1.2em;
    margin: 1em 0;
}

code, pre code {
    font-family: 'Fira Code', 'Courier New', monospace;
}

code:not([class*="language-"]) {
    background-color: #fff2cf;
    color: #000000;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    border: 1px solid #ff6800;
}

pre {
    background-color: #f7f7f7;
    border: 1px solid #e1e1e1;
    border-radius: 4px;
    padding: 14px 16px;
    overflow-x: auto;
    line-height: 1.5;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    color: #000;
}

blockquote {
    border-left: 3px solid #ff6800;
    margin: 1em 0;
    padding: 0.2em 1em;
    color: #555;
    background: #fffaf3;
}

main img {
    max-width: 100%;
    height: auto;
}

article.post-body {
    font-size: 18px;
    line-height: 1.65;
}

article.post-body p {
    font-size: 18px;
}

article.post-body ul,
article.post-body ol {
    list-style: revert;
    padding-left: 1.5em;
}

article.post-body ul li,
article.post-body ol li {
    margin-bottom: 6px;
}

article.post-body h2,
article.post-body h3 {
    margin-top: 1.6em;
}

mark {
    background: #fff2cf;
    padding: 1px 3px;
    border-radius: 2px;
}

.responsive-image-container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
}

.responsive-image {
    width: 100%;
    height: auto;
    display: block;
}

@media (min-width: 700px) {
    .responsive-image {
        max-width: 60%;
        margin: 0 auto;
    }
}

@media screen and (max-width: 768px) {
    header {
        padding: 30px 20px;
    }

    header h1 {
        font-size: 1.6rem;
    }

    header h2 {
        font-size: 1rem;
    }

    .about-me-link {
        display: inline-block;
        margin: 5px 8px;
    }

    main {
        padding: 0 20px;
    }

    .profile-image {
        float: none;
        display: block;
        margin: 0 auto 20px auto;
        width: 260px !important;
        height: 260px !important;
        max-width: none;
        object-fit: cover;
        border-radius: 0;
    }

    div.profile-text {
        font-size: 16px;
        line-height: 1.6;
        text-align: left;
    }

    .post {
        flex-direction: column;
        align-items: flex-start;
        padding: 0;
        margin-bottom: 30px;
    }

    .post > div:first-child {
        width: 100%;
    }

    .post-title {
        font-size: 1.2rem;
    }

    .post-description {
        font-size: 15px;
        line-height: 1.5;
    }

    .post-image {
        width: 100% !important;
        height: auto !important;
        max-width: 100%;
        margin-left: 0;
        margin-top: 15px;
        object-fit: contain;
    }
}

@media screen and (max-width: 480px) {
    header {
        padding: 20px 15px;
    }

    header h1 {
        font-size: 1.4rem;
    }

    header h2 {
        font-size: 0.9rem;
    }

    main {
        padding: 0 15px;
    }

    .post-title {
        font-size: 1.1rem;
    }

    .post-description {
        font-size: 14px;
    }

    div.profile-text {
        font-size: 15px;
    }
}