html {
    --bg: #fbfbfb;
    --fg: #111827;
    --muted: #4b5563;
    --border: #e5e7eb;
    --panel: #ffffff;
    --accent: #2563eb;
    --accent-visited: #6d28d9;
    --code-bg: #f3f4f6;
    --pre-bg: #0b1220;
    --pre-fg: #e5e7eb;

    --content-max: 1040px;
    --measure: 72ch;
    --radius: 10px;
    --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial,
        "Apple Color Emoji", "Segoe UI Emoji";
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
        monospace;
}

@media (prefers-color-scheme: dark) {
    html:not([data-theme]) {
        --bg: #0b0f17;
        --fg: #e5e7eb;
        --muted: #9ca3af;
        --border: #1f2937;
        --panel: #0f1626;
        --accent: #60a5fa;
        --accent-visited: #c084fc;
        --code-bg: #111827;
        --pre-bg: #030712;
        --pre-fg: #e5e7eb;
    }
}

html[data-theme="light"] {
    --bg: #fbfbfb;
    --fg: #111827;
    --muted: #4b5563;
    --border: #e5e7eb;
    --panel: #ffffff;
    --accent: #2563eb;
    --accent-visited: #6d28d9;
    --code-bg: #f3f4f6;
    --pre-bg: #0b1220;
    --pre-fg: #e5e7eb;
}

html[data-theme="dark"] {
    --bg: #0b0f17;
    --fg: #e5e7eb;
    --muted: #9ca3af;
    --border: #1f2937;
    --panel: #0f1626;
    --accent: #60a5fa;
    --accent-visited: #c084fc;
    --code-bg: #111827;
    --pre-bg: #030712;
    --pre-fg: #e5e7eb;
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: light dark;
    text-size-adjust: 100%;
}

html.theme-transition,
html.theme-transition * {
    transition: background-color 240ms ease, color 240ms ease, border-color 240ms ease, fill 240ms ease,
        box-shadow 240ms ease;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    line-height: 1.65;
    color: var(--fg);
    background: var(--bg);
}

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

a {
    color: var(--accent);
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.15em;
}

a:visited {
    color: var(--accent-visited);
}

a:hover {
    text-decoration-thickness: 0.12em;
}

.site-header {
    border-bottom: 1px solid var(--border);
    background: color-mix(in srgb, var(--bg) 70%, transparent);
}

.site-nav {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
}

.site-nav a {
    color: var(--fg);
    text-decoration: none;
}

.site-nav a:hover {
    text-decoration: underline;
}

.site-nav-home {
    font-weight: 650;
    letter-spacing: -0.01em;
}

.site-nav-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--muted);
}

.theme-toggle {
    font: inherit;
    color: var(--fg);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.25rem 0.35rem 0.25rem 0.55rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    user-select: none;
}

.theme-toggle:hover {
    color: var(--fg);
}

.theme-toggle:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--accent) 65%, transparent);
    outline-offset: 2px;
}

.theme-toggle-label {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--muted);
    letter-spacing: 0.01em;
}

.theme-toggle-switch {
    width: 38px;
    height: 22px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--panel) 80%, transparent);
    position: relative;
    flex: 0 0 auto;
}

.theme-toggle-thumb {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    background: var(--fg);
    opacity: 0.9;
    position: absolute;
    top: 1px;
    left: 1px;
    transform: translateX(0);
    transition: transform 200ms ease;
}

.theme-toggle[data-theme="dark"] .theme-toggle-thumb {
    transform: translateX(16px);
}

.theme-toggle[data-theme="dark"] .theme-toggle-switch {
    background: color-mix(in srgb, var(--accent) 18%, var(--panel));
    border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.site-main {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 1.5rem 1.25rem 2.5rem;
}

footer {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 1.25rem 1.25rem 2rem;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.95rem;
}

footer a {
    color: inherit;
}

/* Home */
.home-hero {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin: 0 0 1.5rem;
}

.avatar {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--panel);
}

.site-title {
    margin: 0 0 0.5rem;
    font-size: 1.6rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.site-description {
    margin: 0;
    max-width: var(--measure);
    color: var(--muted);
}

h2 {
    margin: 2rem 0 0.75rem;
    font-size: 1.1rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--muted);
}

.post-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--border);
}

.post-list li {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--border);
}

.post-list a {
    color: var(--fg);
    text-decoration: none;
    font-weight: 600;
}

.post-list a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.post-list time {
    display: block;
    margin-top: 0.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--muted);
}

/* Post */
.post-header {
    margin: 0 0 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.post-header h1 {
    margin: 0 0 0.4rem;
    font-size: 2.1rem;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.post-header time {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--muted);
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.post-best-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.25rem 0.55rem;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
    background: color-mix(in srgb, var(--accent) 9%, transparent);
    color: var(--fg);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.2;
}

.post-best-badge::before {
    content: "";
    width: 14px;
    height: 14px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 75%, #ffd36e), color-mix(in srgb, var(--accent) 55%, #ffb84a));
    -webkit-mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M7%202h4l1%204%20-2.5%204L7%206%207%202zm6%200h4v4l-2.5%204L13%206%2013%202z'/%3E%3Cpath%20d='M12%2011a6%206%200%201%200%200%2012%206%206%200%200%200%200-12zm0%203.1%201.38%202.81%203.1.45-2.24%202.18.53%203.09L12%2020.36%209.23%2021.63l.53-3.09-2.24-2.18%203.1-.45L12%2014.1z'/%3E%3C/svg%3E") no-repeat center / contain;
    mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M7%202h4l1%204%20-2.5%204L7%206%207%202zm6%200h4v4l-2.5%204L13%206%2013%202z'/%3E%3Cpath%20d='M12%2011a6%206%200%201%200%200%2012%206%206%200%200%200%200-12zm0%203.1%201.38%202.81%203.1.45-2.24%202.18.53%203.09L12%2020.36%209.23%2021.63l.53-3.09-2.24-2.18%203.1-.45L12%2014.1z'/%3E%3C/svg%3E") no-repeat center / contain;
}
.content-with-sidebar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 1.75rem;
    align-items: start;
}

.post-content {
    min-width: 0;
}

.version-content {
    display: none;
}

.version-content.active {
    display: block;
}

.version-body {
    max-width: var(--measure);
    font-size: 1.06rem;
    line-height: 1.8;
}

.version-body > *:first-child {
    margin-top: 0;
}

.version-body p {
    margin: 0 0 1.15rem;
}

.version-body h1,
.version-body h2,
.version-body h3 {
    margin: 1.75rem 0 0.75rem;
    line-height: 1.25;
    color: var(--fg);
    text-transform: none;
    letter-spacing: -0.01em;
}

.version-body h1 {
    font-size: 1.65rem;
}

.version-body h2 {
    font-size: 1.35rem;
}

.version-body h3 {
    font-size: 1.15rem;
}

.version-body ul,
.version-body ol {
    margin: 0 0 1.15rem 1.25rem;
    padding: 0;
}

.version-body li {
    margin: 0.35rem 0;
}

.version-body img {
    display: block;
    margin: 1.25rem auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
}

.version-body code {
    font-family: var(--font-mono);
    font-size: 0.92em;
    background: var(--code-bg);
    padding: 0.15rem 0.35rem;
    border-radius: 6px;
    border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
}

.version-body pre {
    background: var(--pre-bg);
    color: var(--pre-fg);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    overflow-x: auto;
    border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
    margin: 0 0 1.2rem;
}

.version-body pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: inherit;
}

.version-body blockquote {
    margin: 1.25rem 0;
    padding: 0.2rem 0 0.2rem 1rem;
    border-left: 3px solid var(--border);
    color: var(--muted);
}

.version-body hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 1.5rem 0;
}

/* Sidebar */
.sidebar {
    position: sticky;
    top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sidebar-panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.sidebar-header {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.55rem 0.7rem;
    border-bottom: 1px solid var(--border);
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.model-selector {
    padding: 0.5rem;
}

.model-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.model-tab {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding: 0.45rem 0.55rem;
    border: 1px solid transparent;
    background: transparent;
    border-radius: 8px;
    color: var(--muted);
    cursor: pointer;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.5rem;
    }
    
    .model-tab-label {
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }
    
    .model-tab.author-pick::after {
        content: "";
        width: 14px;
        height: 14px;
        flex: 0 0 auto;
        background: color-mix(in srgb, var(--accent) 70%, var(--fg));
        -webkit-mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M12%2017.27%2018.18%2021%2016.54%2013.97%2022%209.24%2014.81%208.63%2012%202%209.19%208.63%202%209.24%207.46%2013.97%205.82%2021%2012%2017.27z'/%3E%3C/svg%3E") no-repeat center / contain;
        mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M12%2017.27%2018.18%2021%2016.54%2013.97%2022%209.24%2014.81%208.63%2012%202%209.19%208.63%202%209.24%207.46%2013.97%205.82%2021%2012%2017.27z'/%3E%3C/svg%3E") no-repeat center / contain;
        opacity: 0.95;
    }
    
    .model-tab.active.author-pick::after {
        background: var(--accent);
    }
    
    .author-pick-note {
        display: inline-flex;
        align-items: center;
        gap: 0.55rem;
        margin: 0 0 1rem;
        padding: 0.55rem 0.7rem;
        border-radius: 12px;
        border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
        background:
            radial-gradient(120% 120% at 0% 0%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%),
            color-mix(in srgb, var(--panel) 88%, transparent);
        color: var(--fg);
        font-family: var(--font-mono);
        font-size: 0.82rem;
    }
    
    .author-pick-note::before {
        content: "";
        width: 22px;
        height: 22px;
        flex: 0 0 auto;
        background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 75%, #ffd36e), color-mix(in srgb, var(--accent) 55%, #ffb84a));
        border-radius: 6px;
        -webkit-mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M7%202h4l1%204%20-2.5%204L7%206%207%202zm6%200h4v4l-2.5%204L13%206%2013%202z'/%3E%3Cpath%20d='M12%2011a6%206%200%201%200%200%2012%206%206%200%200%200%200-12zm0%203.1%201.38%202.81%203.1.45-2.24%202.18.53%203.09L12%2020.36%209.23%2021.63l.53-3.09-2.24-2.18%203.1-.45L12%2014.1z'/%3E%3C/svg%3E") no-repeat center / contain;
        mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M7%202h4l1%204%20-2.5%204L7%206%207%202zm6%200h4v4l-2.5%204L13%206%2013%202z'/%3E%3Cpath%20d='M12%2011a6%206%200%201%200%200%2012%206%206%200%200%200%200-12zm0%203.1%201.38%202.81%203.1.45-2.24%202.18.53%203.09L12%2020.36%209.23%2021.63l.53-3.09-2.24-2.18%203.1-.45L12%2014.1z'/%3E%3C/svg%3E") no-repeat center / contain;
        box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 18%, transparent);
    }
    
    .post-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.35rem;
        margin-top: 0.35rem;
        padding: 0.22rem 0.5rem;
        border-radius: 999px;
        border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
        background: color-mix(in srgb, var(--accent) 8%, transparent);
        color: var(--fg);
        font-family: var(--font-mono);
        font-size: 0.75rem;
    }
    
    .post-badge::before {
        content: "";
        width: 12px;
        height: 12px;
        background: color-mix(in srgb, var(--accent) 78%, var(--fg));
        -webkit-mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M12%2017.27%2018.18%2021%2016.54%2013.97%2022%209.24%2014.81%208.63%2012%202%209.19%208.63%202%209.24%207.46%2013.97%205.82%2021%2012%2017.27z'/%3E%3C/svg%3E") no-repeat center / contain;
        mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M12%2017.27%2018.18%2021%2016.54%2013.97%2022%209.24%2014.81%208.63%2012%202%209.19%208.63%202%209.24%207.46%2013.97%205.82%2021%2012%2017.27z'/%3E%3C/svg%3E") no-repeat center / contain;
}

.model-tab:hover {
    border-color: var(--border);
    color: var(--fg);
}

.model-tab.active {
    background: color-mix(in srgb, var(--accent) 16%, transparent);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
    color: var(--fg);
}

.stats-content {
    padding: 0.55rem 0.7rem;
}

.stats-content > div {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.2rem 0;
}

.stats-content dt {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--muted);
}

.stats-content dd {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--fg);
}

.stats-total {
    padding: 0.6rem 0.7rem;
    border-top: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--muted);
}

@media (max-width: 980px) {
    .content-with-sidebar {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: stretch;
    }

    .sidebar-panel {
        flex: 1 1 320px;
    }

    .model-list {
        flex-direction: row;
        flex-wrap: wrap;
    }
}

@media (max-width: 640px) {
    .site-nav {
        padding: 0.9rem 1rem;
    }

    .site-main {
        padding: 1.25rem 1rem 2rem;
    }

    .home-hero {
        align-items: center;
    }

    .avatar {
        width: 52px;
        height: 52px;
    }

    .post-header h1 {
        font-size: 1.7rem;
    }
}