/* Blog reading layout.
   Colors come from the theme tokens in polish.css. */

body.blog-page {
    --blog-measure: 40.5rem;
    --blog-gap: 1.5rem;
    font-size: 1.0625rem;
    line-height: 1.7;
}

body.blog-page ::selection {
    background: var(--selection-bg);
    color: var(--selection-text);
}

body.blog-page :focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 3px;
}

body.blog-page header {
    background: color-mix(in srgb, var(--card-background) 92%, transparent);
}

body.blog-page nav {
    height: auto;
    min-height: 4.75rem;
    gap: 0.75rem 1.25rem;
}

body.blog-page .nav-actions {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

body.blog-page .nav-links a {
    font-family: var(--font-body);
    font-size: 0.98rem;
    padding: 0.5rem 0.75rem;
    border-radius: 999px;
}

body.blog-page .nav-links a:hover,
body.blog-page .nav-links a:focus-visible {
    background: var(--hover-color);
    color: var(--heading-color);
}

body.blog-page .nav-links a.active {
    color: var(--link-color);
    background: var(--hover-color);
    font-weight: 600;
}

/* Theme control stays in the header on every viewport. */
body.blog-page .theme-control {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    flex: none;
}

body.blog-page .theme-label {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

body.blog-page .theme-select {
    appearance: none;
    -webkit-appearance: none;
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-color);
    background-color: var(--input-background);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    min-height: 44px;
    padding: 0.4rem 2.1rem 0.4rem 0.9rem;
    cursor: pointer;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--text-color) 50%),
        linear-gradient(135deg, var(--text-color) 50%, transparent 50%);
    background-position:
        calc(100% - 1.05rem) 55%,
        calc(100% - 0.75rem) 55%;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}

body.blog-page .theme-select:hover {
    border-color: var(--link-color);
    background-color: var(--surface-raised);
}

body.blog-page .theme-select:active {
    border-color: var(--link-hover);
}

body.blog-page main {
    padding-bottom: 1rem;
}

/* Index */
.blog-list {
    padding: 2.75rem 0 4.5rem;
}

.blog-list .container {
    max-width: 68rem;
}

.blog-list .section-title {
    font-family: var(--font-reading);
    font-weight: 600;
    font-size: clamp(2.15rem, 4vw, 3rem);
    line-height: 1.15;
    letter-spacing: -0.025em;
    text-align: left;
    color: var(--heading-color);
    max-width: 16ch;
    margin: 0 0 0.55rem;
}

.blog-lede {
    font-family: var(--font-reading);
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.6;
    letter-spacing: 0.005em;
    color: var(--text-muted);
    max-width: 38rem;
    margin: 0 0 2rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(17.5rem, 1fr));
    gap: var(--blog-gap);
}

.blog-card {
    background: var(--surface-raised);
    border: 1px solid var(--border-color);
    border-radius: 4px 12px 12px 4px;
    box-shadow: 0 10px 28px var(--shadow-color);
    overflow: hidden;
    min-height: 100%;
    transition:
        transform 0.25s var(--ease-out),
        box-shadow 0.25s var(--ease-out),
        border-color 0.2s ease;
}

.blog-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--link-color) 45%, var(--border-color));
    box-shadow: 0 16px 36px var(--shadow-color);
}

.blog-card:active {
    transform: translateY(-1px);
}

.blog-card a {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
    text-decoration: none;
    border-radius: inherit;
}

.blog-card-image {
    height: 9rem;
    background-color: var(--surface-soft);
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid var(--border-color);
}

.blog-card-content {
    padding: 1.45rem 1.5rem 1.6rem;
}

.blog-card h3 {
    font-family: var(--font-reading);
    font-size: 1.38rem;
    font-weight: 600;
    line-height: 1.28;
    letter-spacing: -0.02em;
    color: var(--link-color);
    margin: 0 0 0.7rem;
}

.blog-card a:hover h3,
.blog-card a:focus-visible h3 {
    color: var(--link-hover);
    text-decoration: underline;
    text-underline-offset: 0.16em;
}

.blog-card p {
    margin: 0;
    color: var(--text-color);
    font-size: 1.05rem;
    line-height: 1.65;
}

/* Article */
.blog-container {
    display: grid;
    grid-template-columns: minmax(11rem, 14.5rem) minmax(0, var(--blog-measure));
    justify-content: center;
    align-items: start;
    gap: 2.5rem;
    max-width: 72rem;
    padding-top: 2.5rem;
    padding-bottom: 4.5rem;
}

.blog-sidebar {
    position: sticky;
    top: 6.25rem;
    font-family: var(--font-body);
}

.blog-sidebar nav ul {
    list-style: none;
    margin: 0;
    padding: 0.85rem 0.9rem;
    background: var(--surface-soft);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.blog-sidebar li + li {
    margin-top: 0.15rem;
}

.blog-sidebar a {
    display: block;
    padding: 0.45rem 0.55rem;
    border-radius: 8px;
    color: var(--link-color);
    font-size: 0.95rem;
    line-height: 1.4;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.18em;
}

.blog-sidebar a:hover,
.blog-sidebar a:focus-visible {
    background: var(--hover-color);
    color: var(--link-hover);
}

.blog-sidebar a.active {
    background: var(--hover-color);
    color: var(--link-hover);
    font-weight: 600;
}

.blog-post {
    font-family: var(--font-reading);
    font-size: 1.1875rem;
    font-weight: 400;
    line-height: 1.75;
    letter-spacing: 0.011em;
    color: var(--text-color);
    max-width: var(--blog-measure);
    background: var(--surface-raised);
    border: 1px solid var(--border-color);
    border-radius: 2px 14px 14px 2px;
    box-shadow:
        inset 0 1px 0 color-mix(in srgb, white 55%, transparent),
        0 18px 40px var(--shadow-color);
    padding: clamp(1.5rem, 4vw, 2.85rem) clamp(1.2rem, 4vw, 2.7rem);
}

.blog-post h1,
.blog-post h2,
.blog-post h3,
.blog-post h4 {
    font-family: var(--font-reading);
    font-weight: 600;
    color: var(--heading-color);
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.blog-post h1 {
    font-size: clamp(2rem, 4.4vw, 2.7rem);
    line-height: 1.18;
    margin: 0 0 0.55em;
}

.blog-post .blog-byline {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.01em;
    color: var(--text-muted);
    margin: 0 0 2.1rem;
}

.blog-post h2 {
    font-size: 1.5rem;
    margin: 2.15em 0 0.7em;
    padding-top: 0.15em;
}

.blog-post h3 {
    font-size: 1.25rem;
    margin: 1.7em 0 0.55em;
}

.blog-post h4 {
    font-size: 1.08rem;
    margin: 1.45em 0 0.45em;
}

.blog-post p {
    margin: 0 0 1.15em;
}

.blog-post section + section {
    margin-top: 0.35rem;
}

.blog-post ul,
.blog-post ol {
    margin: 0.2em 0 1.3em;
    padding-left: 1.35em;
}

.blog-post li {
    margin: 0.45em 0;
    padding-left: 0.2em;
}

.blog-post li + li {
    margin-top: 0.5em;
}

.blog-post blockquote {
    margin: 1.4em 0 1.5em;
    padding: 0.15em 0 0.15em 1.05em;
    border-left: 3px solid var(--link-color);
    color: var(--text-color);
    font-style: italic;
}

.blog-post a {
    color: var(--link-color);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.18em;
}

.blog-post a:visited {
    color: var(--link-visited);
}

.blog-post a:hover,
.blog-post a:active {
    color: var(--link-hover);
}

.blog-post hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

.blog-post img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 0.4em 0 1.2em;
}

.blog-post table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1.4em;
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.5;
}

.blog-post th,
.blog-post td {
    text-align: left;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
}

.blog-post th {
    color: var(--text-muted);
    font-weight: 600;
}

.blog-post code {
    font-family: var(--font-mono);
    font-size: 0.86em;
    line-height: 1.5;
    background: var(--code-bg);
    color: var(--text-color);
    padding: 0.12em 0.38em;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.blog-post pre {
    font-family: var(--font-mono);
    font-size: 0.92rem;
    line-height: 1.65;
    background: var(--code-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.05rem 1.15rem;
    margin: 0 0 1.4em;
    overflow-x: auto;
}

.blog-post pre code {
    background: none;
    border: 0;
    padding: 0;
    font-size: inherit;
}

.blog-post mjx-container {
    color: inherit;
}

.blog-post mjx-container[display="true"] {
    margin: 1.2em 0 1.35em;
    padding: 0.2em 0;
    overflow-x: auto;
    overflow-y: hidden;
}

body.blog-page input,
body.blog-page textarea,
body.blog-page select,
body.blog-page button {
    font-family: var(--font-body);
    color: var(--text-color);
}

body.blog-page input:not(.theme-select),
body.blog-page textarea,
body.blog-page select:not(.theme-select) {
    background: var(--input-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.6rem 0.75rem;
    font-size: 1rem;
    line-height: 1.45;
}

body.blog-page input:hover,
body.blog-page textarea:hover,
body.blog-page select:hover {
    border-color: color-mix(in srgb, var(--link-color) 55%, var(--border-color));
}

body.blog-page footer {
    background: transparent;
    margin-top: 0;
}

body.blog-page footer p {
    color: var(--text-muted);
}

@media (max-width: 800px) {
    .blog-container {
        grid-template-columns: 1fr;
        gap: 1.15rem;
        padding-top: 1.35rem;
        padding-bottom: 3rem;
    }

    .blog-sidebar {
        position: static;
    }

    .blog-sidebar nav ul {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem;
        padding: 0.7rem;
    }

    .blog-sidebar li + li {
        margin-top: 0;
    }

    .blog-post {
        font-size: 1.075rem;
        line-height: 1.7;
        letter-spacing: 0.008em;
    }

    .blog-list {
        padding-top: 1.75rem;
    }
}

@media (max-width: 768px) {
    body.blog-page .logo {
        font-size: 1.08rem;
    }

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

    body.blog-page .theme-select {
        max-width: 9.6rem;
        font-size: 0.85rem;
        padding-left: 0.7rem;
    }

    body.blog-page .nav-links a {
        min-height: 44px;
    }

    body.blog-page .nav-actions {
        gap: 0.35rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .blog-card,
    body.blog-page .theme-select {
        transition: none;
    }
}

@media print {
    body.blog-page {
        background: #fff;
        color: #111;
    }

    body.blog-page header,
    body.blog-page footer,
    .blog-sidebar,
    .theme-control {
        display: none;
    }

    .blog-container {
        display: block;
        padding: 0;
    }

    .blog-post,
    .blog-card {
        box-shadow: none;
        border: 0;
        background: #fff;
        max-width: none;
    }
}