:root {
    color-scheme: dark;
    --background: #1b1e23;
    --surface: #23272d;
    --surface-raised: #2a2f36;
    --text: #eceef1;
    --muted: #aab1ba;
    --accent: #b9e3f5;
    --accent-strong: #e4f6ff;
    --rule: #3b424c;
    --code: #14171b;
    --syntax-foreground: #c5c8c6;
    --syntax-comment: #969896;
    --syntax-red: #cc6666;
    --syntax-orange: #de935f;
    --syntax-yellow: #f0c674;
    --syntax-green: #b5bd68;
    --syntax-aqua: #8abeb7;
    --syntax-blue: #81a2be;
    --syntax-purple: #b294bb;
    --header-background: rgba(24, 27, 32, 0.92);
    --quote: #d5d9df;
    --cover-outline: rgba(255, 255, 255, 0.05);
    --content-width: 760px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    --font-code: Menlo, Monaco, Consolas, "Andale Mono", "Lucida Console",
        "Courier New", monospace;
}

:root[data-theme="light"] {
    color-scheme: light;
    --background: #f7f8fa;
    --surface: #ffffff;
    --surface-raised: #f0f3f6;
    --text: #20242a;
    --muted: #68717d;
    --accent: #32718d;
    --accent-strong: #1d566f;
    --rule: #d8dde3;
    --code: #eef1f4;
    --syntax-foreground: #383a42;
    --syntax-comment: #7f848e;
    --syntax-red: #c2423a;
    --syntax-orange: #b05a00;
    --syntax-yellow: #8b6c00;
    --syntax-green: #477a1e;
    --syntax-aqua: #008080;
    --syntax-blue: #2b5fb3;
    --syntax-purple: #7a3e9d;
    --header-background: rgba(247, 248, 250, 0.92);
    --quote: #505965;
    --cover-outline: rgba(32, 36, 42, 0.08);
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme]) {
        color-scheme: light;
        --background: #f7f8fa;
        --surface: #ffffff;
        --surface-raised: #f0f3f6;
        --text: #20242a;
        --muted: #68717d;
        --accent: #32718d;
        --accent-strong: #1d566f;
        --rule: #d8dde3;
        --code: #eef1f4;
        --syntax-foreground: #383a42;
        --syntax-comment: #7f848e;
        --syntax-red: #c2423a;
        --syntax-orange: #b05a00;
        --syntax-yellow: #8b6c00;
        --syntax-green: #477a1e;
        --syntax-aqua: #008080;
        --syntax-blue: #2b5fb3;
        --syntax-purple: #7a3e9d;
        --header-background: rgba(247, 248, 250, 0.92);
        --quote: #505965;
        --cover-outline: rgba(32, 36, 42, 0.08);
    }
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    background: var(--background);
    color: var(--text);
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    transition: background-color 180ms ease, color 180ms ease;
}

body::before {
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    content: "";
    display: block;
    height: 1px;
    opacity: 0.75;
}

a {
    color: inherit;
    text-decoration-color: color-mix(in srgb, var(--accent) 58%, transparent);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.18em;
}

a:hover {
    color: var(--accent-strong);
}

a:focus-visible {
    border-radius: 2px;
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

.wrapper {
    margin: 0 auto;
    max-width: var(--content-width);
    padding: 64px 28px;
    width: 100%;
}

header {
    background: var(--header-background);
    border-bottom: 1px solid var(--rule);
    transition: background-color 180ms ease, border-color 180ms ease;
}

header .wrapper {
    align-items: center;
    display: flex;
    justify-content: space-between;
    max-width: 1080px;
    padding-bottom: 22px;
    padding-top: 22px;
}

header a {
    text-decoration: none;
}

.site-brand {
    align-items: center;
    color: var(--text);
    display: inline-flex;
    flex: 0 1 auto;
    gap: 12px;
    min-width: 0;
}

.site-brand:hover {
    color: var(--text);
}

.site-brand-mark {
    display: block;
    flex: 0 0 auto;
    height: 44px;
    object-fit: contain;
    transition: transform 160ms ease;
    width: 44px;
}

.site-brand:hover .site-brand-mark {
    transform: scale(1.04);
}

.site-brand-name {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: normal;
    line-height: 1.6;
    white-space: nowrap;
}

.header-actions {
    align-items: center;
    display: flex;
    gap: 24px;
    margin-left: 32px;
}

.headerNavigation {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.headerNavigation ul {
    display: flex;
    gap: 24px;
    list-style: none;
}

.headerNavigation li {
    display: block;
}

.headerNavigation a {
    display: block;
    padding: 8px 0;
    position: relative;
}

.headerNavigation a::after {
    background: var(--accent);
    bottom: 1px;
    content: "";
    height: 1px;
    left: 0;
    position: absolute;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 160ms ease;
    width: 100%;
}

.headerNavigation a:hover::after,
.headerNavigation a.selected::after {
    transform: scaleX(1);
}

.headerNavigation a.selected {
    color: var(--text);
}

.theme-toggle {
    align-items: center;
    appearance: none;
    background: transparent;
    border: 1px solid var(--rule);
    border-radius: 50%;
    color: var(--muted);
    cursor: pointer;
    display: inline-flex;
    flex: 0 0 auto;
    height: 34px;
    justify-content: center;
    padding: 0;
    transition: background-color 160ms ease, border-color 160ms ease,
        color 160ms ease, transform 160ms ease;
    width: 34px;
}

.theme-toggle:hover {
    background: var(--surface-raised);
    border-color: var(--accent);
    color: var(--text);
    transform: rotate(8deg);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.theme-icon {
    display: none;
    height: 17px;
    width: 17px;
}

.theme-icon svg {
    display: block;
    fill: none;
    height: 100%;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
    width: 100%;
}

:root[data-theme="dark"] .theme-icon-sun,
:root[data-theme="light"] .theme-icon-moon {
    display: block;
}

h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2rem, 7vw, 2.5rem);
    margin-bottom: 18px;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 1.9rem);
    margin: 52px 0 18px;
}

h3 {
    font-size: 1.5rem;
    margin: 36px 0 14px;
}

h4 {
    font-size: 1.2rem;
}

p {
    margin-bottom: 1.1em;
}

.description,
.section-description {
    color: var(--muted);
    font-size: 1.08rem;
    max-width: 42rem;
}

.description {
    margin-bottom: 52px;
}

.section-description {
    margin-bottom: 42px;
}

.item-list {
    border-bottom: 1px solid var(--rule);
    list-style: none;
}

.item-list > li {
    border-top: 1px solid var(--rule);
}

.item-list > li:first-child {
    border-top: 0;
}

.item-row {
    padding: 46px 0 48px;
}

.item-list h1 {
    font-size: clamp(1.5rem, 4vw, 1.85rem);
    letter-spacing: -0.022em;
    line-height: 1.25;
    margin: 11px 0 26px;
}

.item-list h1 a {
    background-image: linear-gradient(var(--accent), var(--accent));
    background-position: 0 100%;
    background-repeat: no-repeat;
    background-size: 0 1px;
    text-decoration: none;
    transition: background-size 180ms ease, color 180ms ease;
}

.item-list > li:hover h1 a {
    background-size: 100% 1px;
}

.item-excerpt {
    line-height: 1.78;
    margin: 0 0 28px;
}

.item-excerpt > :last-child {
    margin-bottom: 0;
}

.item-excerpt img {
    margin: 28px auto;
}

.item-row .tag-list {
    margin: 0;
}

.item-date,
.article-date {
    color: var(--accent);
    font-family: var(--font-code);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    margin-bottom: 14px;
}

.item-date {
    line-height: 1.35;
    margin: 0;
}

.post-pagination {
    align-items: center;
    display: grid;
    gap: 18px;
    grid-template-columns: 1fr auto 1fr;
    margin: 44px 0 4px;
}

.pagination-pages {
    display: flex;
    gap: 7px;
    list-style: none;
}

.pagination-page {
    align-items: center;
    border: 1px solid transparent;
    border-radius: 999px;
    color: var(--muted);
    display: inline-flex;
    font-family: var(--font-code);
    font-size: 0.76rem;
    height: 34px;
    justify-content: center;
    min-width: 34px;
    text-decoration: none;
    transition: background-color 140ms ease, border-color 140ms ease,
        color 140ms ease;
}

.pagination-page:hover {
    background: var(--surface-raised);
    border-color: var(--rule);
}

.pagination-page.is-current {
    background: color-mix(in srgb, var(--surface-raised) 88%, var(--accent));
    border-color: var(--accent);
    color: var(--text);
}

.pagination-direction {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-decoration: none;
}

.post-pagination > .pagination-direction:last-child {
    justify-self: end;
}

.pagination-direction.is-disabled {
    opacity: 0.3;
}

.archive-list {
    list-style: none;
    margin-top: 0;
}

[hidden] {
    display: none !important;
}

.archive-filter {
    margin: 34px 0 54px;
}

.archive-filter-status {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

.archive-filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    margin: 0;
}

.archive-filter-button {
    align-items: center;
    appearance: none;
    background: color-mix(in srgb, var(--surface-raised) 88%, var(--accent));
    border: 1px solid var(--rule);
    border-radius: 999px;
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    font: 700 0.92rem/1.2 var(--font-sans);
    gap: 6px;
    padding: 9px 15px;
    transition: background-color 140ms ease, border-color 140ms ease,
        color 140ms ease;
}

.archive-filter-button:hover {
    background: var(--surface-raised);
    border-color: var(--accent);
}

.archive-filter-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.archive-filter-button.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--background);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.archive-filter-count {
    font-family: var(--font-code);
    font-size: 0.68rem;
    font-weight: 400;
    opacity: 0.72;
    transform: translateY(-0.28em);
}

.archive-list > li {
    display: block;
}

.archive-list > li + li {
    margin-top: 38px;
}

.archive-year > h2 {
    font-size: 2rem;
    letter-spacing: -0.025em;
    line-height: 1;
    margin: 0 0 14px;
}

.archive-entries {
    list-style: none;
}

.archive-entries > li + li {
    margin-top: 0;
}

.archive-entry {
    align-items: baseline;
    display: grid;
    gap: 16px;
    grid-template-columns: 64px 1fr;
    min-height: 36px;
}

.archive-date {
    color: var(--muted);
    font-family: var(--font-code);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    line-height: 1.45;
    white-space: nowrap;
}

.archive-entry a {
    display: block;
    font-size: 1.03rem;
    font-weight: 700;
    line-height: 1.45;
    padding: 2px 0 5px;
    text-decoration: none;
    transition: color 140ms ease, transform 140ms ease;
}

.archive-entry a:hover {
    transform: translateX(3px);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    list-style: none;
    margin-bottom: 16px;
}

.tag-list li {
    display: block;
}

.tag-list a {
    background: color-mix(in srgb, var(--surface-raised) 88%, var(--accent));
    border: 1px solid var(--rule);
    border-radius: 999px;
    color: var(--text);
    display: block;
    font: 700 0.72rem/1.2 var(--font-sans);
    letter-spacing: 0.02em;
    padding: 6px 11px;
    text-decoration: none;
    transition: background-color 140ms ease, border-color 140ms ease,
        color 140ms ease;
}

.tag-list a:hover {
    background: var(--surface-raised);
    border-color: var(--accent);
}

.tag-list a:focus-visible {
    border-radius: 999px;
}

.article-header {
    border-bottom: 1px solid var(--rule);
    margin-bottom: 46px;
    padding-bottom: 30px;
    position: relative;
}

.article-header::before {
    background: var(--accent);
    content: "";
    height: 100%;
    left: -28px;
    position: absolute;
    top: 0;
    width: 1px;
}

.article-header h1 {
    margin-bottom: 0;
    max-width: 14em;
}

.article-header .tag-list {
    margin: 20px 0 0;
}

.content {
    font-family: var(--font-sans);
    line-height: 1.8;
    margin-bottom: 52px;
}

.about-content {
    margin-top: 34px;
}

.content > :first-child {
    margin-top: 0;
}

.content a {
    color: var(--accent-strong);
    font-weight: 700;
}

.content ul,
.content ol {
    margin: 0 0 1.35em 1.4em;
}

.content li {
    margin-bottom: 0.38em;
    padding-left: 0.2em;
}

.content blockquote {
    border-left: 3px solid var(--accent);
    color: var(--quote);
    margin: 30px 0;
    padding: 2px 0 2px 22px;
}

.content blockquote p:last-child {
    margin-bottom: 0;
}

.content img {
    background: transparent;
    display: block;
    height: auto;
    margin: 34px auto;
    max-width: 100%;
}

.content code {
    background: var(--code);
    border: 1px solid var(--rule);
    font-family: var(--font-code);
    font-size: 0.82em;
    padding: 0.12em 0.32em;
}

.content pre {
    background: var(--code);
    border: 1px solid var(--rule);
    margin: 28px 0;
    overflow-x: auto;
    padding: 20px 22px;
}

.content pre code {
    background: transparent;
    border: 0;
    font-size: 0.78rem;
    line-height: 1.7;
    padding: 0;
}

.content pre.hljs {
    color: var(--syntax-foreground);
}

.hljs-comment,
.hljs-quote {
    color: var(--syntax-comment);
    font-style: italic;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-doctag {
    color: var(--syntax-purple);
}

.hljs-name,
.hljs-section,
.hljs-selector-id,
.hljs-selector-class,
.hljs-title {
    color: var(--syntax-blue);
}

.hljs-attr,
.hljs-attribute,
.hljs-meta,
.hljs-tag,
.hljs-variable,
.hljs-template-variable {
    color: var(--syntax-red);
}

.hljs-built_in,
.hljs-builtin-name,
.hljs-class .hljs-title,
.hljs-type {
    color: var(--syntax-yellow);
}

.hljs-literal,
.hljs-number,
.hljs-params {
    color: var(--syntax-orange);
}

.hljs-addition,
.hljs-regexp,
.hljs-string,
.hljs-symbol {
    color: var(--syntax-green);
}

.hljs-bullet,
.hljs-link {
    color: var(--syntax-aqua);
}

.hljs-deletion {
    color: var(--syntax-red);
}

.hljs-emphasis {
    font-style: italic;
}

.hljs-strong {
    font-weight: 700;
}

.content hr {
    border: 0;
    border-top: 1px solid var(--rule);
    margin: 48px 0;
}

footer {
    border-top: 1px solid var(--rule);
    color: var(--muted);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
}

footer .wrapper {
    padding-bottom: 34px;
    padding-top: 34px;
}

footer p {
    margin-bottom: 4px;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    * {
        transition: none !important;
    }
}

@media (max-width: 680px) {
    html {
        font-size: 16px;
    }

    .wrapper {
        padding: 46px 20px;
    }

    header .wrapper {
        align-items: center;
        padding-left: 16px;
        padding-right: 16px;
        padding-bottom: 18px;
        padding-top: 18px;
    }

    .site-brand {
        gap: 8px;
    }

    .site-brand-mark {
        height: 34px;
        width: 34px;
    }

    .site-brand-name {
        font-size: 1.2rem;
        letter-spacing: normal;
    }

    .header-actions {
        gap: 12px;
        margin-left: 12px;
    }

    .headerNavigation {
        font-size: 0.72rem;
    }

    .headerNavigation ul {
        gap: 12px;
    }

    .theme-toggle {
        height: 32px;
        width: 32px;
    }

    .theme-icon {
        height: 16px;
        width: 16px;
    }

    .article-header::before {
        left: -20px;
    }

    .item-row {
        padding: 36px 0 38px;
    }

    .item-list h1 {
        margin-bottom: 22px;
    }

    .item-excerpt {
        margin-bottom: 24px;
    }

    .item-excerpt img {
        margin: 24px auto;
    }

    .post-pagination {
        gap: 10px;
        margin-top: 36px;
    }

    .pagination-pages {
        gap: 3px;
    }

    .pagination-page {
        font-size: 0.7rem;
        height: 30px;
        min-width: 30px;
    }

    .pagination-direction {
        font-size: 0.7rem;
    }

    .archive-list {
        margin-top: 0;
    }

    .archive-filter {
        margin: 28px 0 42px;
    }

    .archive-filter-options {
        gap: 8px;
    }

    .archive-filter-button {
        font-size: 0.82rem;
        padding: 8px 12px;
    }

    .archive-list > li + li {
        margin-top: 30px;
    }

    .archive-year > h2 {
        font-size: 1.75rem;
        margin-bottom: 12px;
    }

    .archive-entry {
        gap: 12px;
        grid-template-columns: 60px 1fr;
    }

    .archive-date {
        font-size: 0.78rem;
    }

    .archive-entry a {
        font-size: 0.98rem;
    }

}

@media (max-width: 420px) {
    header .wrapper {
        padding-left: 12px;
        padding-right: 12px;
    }

    .site-brand {
        gap: 6px;
    }

    .site-brand-mark {
        height: 30px;
        width: 30px;
    }

    .site-brand-name {
        font-size: 1.2rem;
        letter-spacing: normal;
    }

    .header-actions {
        gap: 8px;
        margin-left: 8px;
    }

    .headerNavigation {
        font-size: 0.68rem;
    }

    .headerNavigation ul {
        gap: 8px;
    }

    .theme-toggle {
        height: 30px;
        width: 30px;
    }
}