:root {
    color-scheme: light;
    --background: #ffffff;
    --text: #0d1117;
    --muted: #424a53;
    --subtle: #424a53;
    --description: #32383f;
    --border: #8c959f;
    --strong-border: #57606a;
    --link-decoration: #57606a;
    --inline-code: #eaeef2;
    --code-block: #f6f8fa;
    --code-border: #57606a;
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-synthesis: none;
    color: var(--text);
    background: var(--background);
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --background: #0a0c10;
    --text: #f0f3f6;
    --muted: #bdc4cc;
    --subtle: #bdc4cc;
    --description: #d0d7de;
    --border: #7a828e;
    --strong-border: #9ea7b3;
    --link-decoration: #9ea7b3;
    --inline-code: #272b33;
    --code-block: #010409;
    --code-border: #7a828e;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        color-scheme: dark;
        --background: #0a0c10;
        --text: #f0f3f6;
        --muted: #bdc4cc;
        --subtle: #bdc4cc;
        --description: #d0d7de;
        --border: #7a828e;
        --strong-border: #9ea7b3;
        --link-decoration: #9ea7b3;
        --inline-code: #272b33;
        --code-block: #010409;
        --code-border: #7a828e;
    }
}

* {
    box-sizing: border-box;
}

html {
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
    min-width: 320px;
    font-size: 1rem;
    line-height: 1.7;
}

a {
    color: inherit;
    text-decoration-color: var(--link-decoration);
    text-underline-offset: 0.2em;
}

a:hover {
    text-decoration-color: currentColor;
}

.site-header,
main,
.site-footer {
    width: min(100% - 40px, 720px);
    margin-inline: auto;
}

.site-header {
    border-bottom: 1px solid var(--border);
}

.header-inner {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-name {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.site-icon {
    font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
    font-size: 1.2rem;
    line-height: 1;
}

.locale-flag {
    font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
    font-size: 1.15rem;
    line-height: 1;
}

.locale-code {
    font-size: 0.75rem;
}

.primary-nav,
.locale-nav {
    display: flex;
    align-items: center;
    gap: 18px;
}

.primary-nav a,
.locale-nav a {
    color: var(--muted);
    font-size: 0.9rem;
    text-decoration: none;
}

.locale-nav a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.primary-nav a:hover,
.locale-nav a:hover,
.locale-nav a[aria-current="page"] {
    color: var(--text);
}

.theme-toggle {
    display: none;
    width: 28px;
    height: 28px;
    margin: 0 0 0 -2px;
    padding: 0;
    place-items: center;
    border: 0;
    border-radius: 50%;
    color: var(--text);
    background: transparent;
    cursor: pointer;
}

.js .theme-toggle {
    display: grid;
}

.theme-toggle:hover {
    background: var(--inline-code);
}

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

.theme-icon {
    width: 14px;
    height: 14px;
    border: 1.5px solid currentColor;
    border-radius: 50%;
    background: linear-gradient(90deg, currentColor 50%, transparent 50%);
}

:root[data-theme="dark"] .theme-icon {
    transform: rotate(180deg);
}

main {
    min-height: calc(100vh - 170px);
    padding-block: 76px 96px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.page h1,
.post-header h1 {
    margin: 0;
    max-width: 650px;
    font-size: clamp(2rem, 6vw, 3rem);
    line-height: 1.16;
    letter-spacing: -0.045em;
}

.post-header > p {
    max-width: 610px;
    margin: 20px 0 0;
    color: var(--description);
    font-size: 1.05rem;
}

.post-list {
    border-top: 1px solid var(--strong-border);
}

.post-item {
    display: grid;
    grid-template-columns: 112px 1fr;
    gap: 24px;
    padding-block: 28px;
    border-bottom: 1px solid var(--border);
}

.post-item time,
.post-header time {
    color: var(--subtle);
    font-size: 0.82rem;
    font-variant-numeric: tabular-nums;
}

.post-item h2 {
    margin: -0.15em 0 6px;
    font-size: 1.17rem;
    line-height: 1.45;
    letter-spacing: -0.015em;
    word-break: keep-all;
}

.post-item h2 a {
    text-decoration: none;
}

.post-item p,
.empty-message {
    margin: 0;
    color: var(--description);
}

.empty-message {
    padding-block: 28px;
}

.search-page h1 {
    margin: 0 0 32px;
    font-size: clamp(2rem, 6vw, 3rem);
    line-height: 1.16;
    letter-spacing: -0.045em;
}

.search-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.search-form input,
.search-form button {
    min-height: 48px;
    border: 1px solid var(--strong-border);
    border-radius: 3px;
    color: var(--text);
    background: var(--background);
    font: inherit;
}

.search-form input {
    min-width: 0;
    padding: 9px 12px;
}

.search-form button {
    padding: 9px 20px;
    font-weight: 700;
    cursor: pointer;
}

.search-form button:hover {
    color: var(--background);
    background: var(--text);
}

.search-form input:focus-visible,
.search-form button:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 2px;
}

.search-status {
    margin: 18px 0 0;
    color: var(--description);
}

.search-results {
    margin-top: 32px;
}

.page,
.post {
    max-width: 680px;
}

.page h1 {
    margin-bottom: 42px;
}

.about-header {
    padding-bottom: 48px;
    border-bottom: 1px solid var(--strong-border);
}

.about-header h1 {
    margin-bottom: 24px;
}

.about-intro {
    max-width: 620px;
    font-size: 1.15rem;
}

.about-education {
    color: var(--description);
}

.about-section {
    padding-block: 44px;
    border-bottom: 1px solid var(--border);
}

.about-section:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.about-page.prose > h2 {
    margin: 44px 0 24px;
    padding-top: 44px;
    border-top: 1px solid var(--border);
    font-size: 1rem;
}

.about-page.prose > h3 {
    margin: 30px 0 10px;
    font-size: 1rem;
}

.about-page.prose > ul {
    padding-left: 1.2em;
}

.about-section h2 {
    margin: 0 0 24px;
    font-size: 1rem;
    letter-spacing: 0.01em;
}

.experience-item + .experience-item {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.experience-heading {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 10px;
}

.experience-heading h3,
.experience-heading p,
.experience-item > p {
    margin: 0;
}

.experience-heading h3 {
    font-size: 1rem;
}

.experience-heading p {
    flex: none;
    color: var(--subtle);
    font-size: 0.82rem;
    font-variant-numeric: tabular-nums;
}

.experience-item > p {
    color: var(--description);
}

.plain-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.plain-list li {
    padding-block: 8px;
    border-bottom: 1px solid var(--border);
}

.plain-list li:first-child {
    padding-top: 0;
}

.plain-list li:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.compact-list li {
    border: 0;
}

.skill-groups {
    display: grid;
    gap: 30px;
}

.skill-group h3 {
    margin: 0 0 12px;
    color: var(--subtle);
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 7px;
}

.badge-list img {
    display: block;
    height: 22px;
    width: auto;
}

.credential-badges {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}

.credential-badges img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 28px;
}

.page p,
.post-body p {
    margin: 0 0 1.4em;
}

.post-header {
    padding-bottom: 42px;
    border-bottom: 1px solid var(--strong-border);
}

.post-header time {
    display: block;
    margin-top: 24px;
}

.post-body {
    padding-top: 42px;
}

.post-body h2 {
    margin: 2.2em 0 0.65em;
    font-size: 1.55rem;
    line-height: 1.3;
    letter-spacing: -0.025em;
}

.post-body code {
    padding: 0.15em 0.35em;
    border-radius: 3px;
    background: var(--inline-code);
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: 0.9em;
}

.post-body pre {
    overflow-x: auto;
    margin: 1.8em 0;
    padding: 20px;
    border: 1px solid var(--code-border);
    border-radius: 4px;
    background: var(--code-block);
    line-height: 1.55;
}

.post-body pre code {
    padding: 0;
    background: transparent;
}

:root[data-theme="dark"] .shiki,
:root[data-theme="dark"] .shiki span {
    color: var(--shiki-dark) !important;
    background-color: var(--shiki-dark-bg) !important;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) .shiki,
    :root:not([data-theme]) .shiki span {
        color: var(--shiki-dark) !important;
        background-color: var(--shiki-dark-bg) !important;
    }
}

.error-page p {
    margin: 0;
    color: var(--subtle);
    font-variant-numeric: tabular-nums;
}

.error-page h1 {
    margin: 8px 0 30px;
    font-size: 2rem;
    letter-spacing: -0.03em;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    min-height: 102px;
    border-top: 1px solid var(--border);
    color: var(--subtle);
    font-size: 0.82rem;
}

@media (max-width: 560px) {
    html {
        font-size: 131.25%;
    }

    .site-header,
    main,
    .site-footer {
        width: min(100% - 32px, 720px);
    }

    main {
        padding-block: 52px 72px;
    }

    .header-inner {
        flex-wrap: wrap;
        gap: 12px;
        padding-block: 12px;
    }

    .site-name {
        gap: 6px;
    }

    .primary-nav {
        gap: 12px;
    }

    .search-form {
        grid-template-columns: 1fr;
    }

    .post-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .experience-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 2px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 44px;
    }

    .site-footer {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        padding-block: 24px;
    }

    .locale-nav {
        flex-wrap: wrap;
        gap: 12px 16px;
    }
}