/* Medium-inspired reading experience — blog posts & project READMEs */

:root {
    --reading-bg: #ffffff;
    --reading-text: rgba(0, 0, 0, 0.84);
    --reading-text-soft: rgba(0, 0, 0, 0.68);
    --reading-heading: #242424;
    --reading-muted: #6b6b6b;
    --reading-border: #f2f2f2;
    --reading-border-strong: #e6e6e6;
    --reading-accent: #1a8917;
    --reading-accent-hover: #156d12;
    --reading-brand: #ff6b35;
    --reading-measure: 42.5rem;
    --reading-shell: 45.5rem;
    --reading-serif: 'Source Serif 4', 'Source Serif Pro', Georgia, 'Times New Roman', serif;
    --reading-sans: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.reading-page {
    background: var(--reading-bg) !important;
    color: var(--reading-text) !important;
    font-family: var(--reading-sans);
}

.reading-page section,
.reading-page #post-content,
.reading-page .reading-article {
    background: var(--reading-bg) !important;
}

/* Beehiiv injected content — force light reading colors */
.reading-prose .beehiiv,
.reading-prose .beehiiv p,
.reading-prose .beehiiv li,
.reading-prose .beehiiv span,
.reading-prose .beehiiv div {
    color: var(--reading-text) !important;
    background-color: transparent !important;
}

.reading-prose .beehiiv h1,
.reading-prose .beehiiv h2,
.reading-prose .beehiiv h3,
.reading-prose .beehiiv .heading {
    color: var(--reading-heading) !important;
}

.reading-prose .beehiiv .blockquote,
.reading-prose .beehiiv .blockquote__quote {
    background: #fafafa !important;
    border-left: 3px solid var(--reading-heading) !important;
    padding: 1rem 1.25rem !important;
    margin: 1.5em 0 !important;
}

.reading-prose .beehiiv .bh__table_cell {
    background-color: #ffffff !important;
}

.reading-prose .beehiiv .bh__table_header {
    background-color: #f9fafb !important;
}

/* Tailwind prose must not invert on system dark mode */
.prose-invert {
    --tw-prose-body: var(--reading-text) !important;
    --tw-prose-headings: var(--reading-heading) !important;
}

.reading-shell {
    max-width: var(--reading-shell);
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

.reading-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--reading-muted);
    font-family: var(--reading-sans);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2.5rem;
    text-decoration: none;
}

.reading-back:hover {
    color: var(--reading-heading);
}

/* Flat article surface — no card chrome, like Medium */
.reading-article {
    position: relative;
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0 0 3rem;
}

.reading-header {
    max-width: var(--reading-measure);
    margin: 0 auto 2.5rem;
}

.reading-title {
    font-family: var(--reading-sans);
    font-size: clamp(2rem, 5vw, 2.625rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.011em;
    color: var(--reading-heading);
    margin: 0 0 1rem;
}

.reading-dek {
    font-family: var(--reading-sans);
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 1.45;
    font-weight: 400;
    color: var(--reading-text-soft);
    margin: 0 0 1.75rem;
}

.reading-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--reading-sans);
    font-size: 0.875rem;
    color: var(--reading-muted);
    padding-bottom: 1.75rem;
    border-bottom: 1px solid var(--reading-border);
}

.reading-author-chip {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.reading-avatar {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 9999px;
    background: #f0f0f0;
    color: var(--reading-heading);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    font-weight: 600;
    flex-shrink: 0;
    overflow: hidden;
}

.reading-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.reading-author-name {
    font-weight: 500;
    color: var(--reading-heading);
    font-size: 0.9375rem;
}

.reading-badge {
    display: none;
}

.reading-meta-divider {
    color: var(--reading-border-strong);
}

.reading-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.reading-tag {
    font-family: var(--reading-sans);
    font-size: 0.8125rem;
    font-weight: 400;
    padding: 0;
    border-radius: 0;
    background: none;
    color: var(--reading-muted);
    border: none;
}

.reading-tag::before {
    content: '·';
    margin-right: 0.75rem;
    color: var(--reading-border-strong);
}

.reading-tag:first-child::before {
    content: none;
    margin: 0;
}

.reading-tag-muted {
    background: none;
    color: var(--reading-muted);
    border: none;
}

.reading-cover {
    max-width: var(--reading-measure);
    margin: 0 auto 2.5rem;
    border-radius: 0;
    overflow: hidden;
    border: none;
}

.reading-cover img {
    width: 100%;
    height: auto;
    max-height: 32rem;
    object-fit: cover;
    display: block;
}

/* Prose — Medium body typography */
.reading-prose,
.reading-prose.prose {
    max-width: var(--reading-measure);
    margin: 0 auto;
    font-family: var(--reading-serif);
    font-size: 1.25rem;
    line-height: 1.58;
    letter-spacing: -0.003em;
    color: var(--reading-text) !important;
}

.reading-prose > * + * {
    margin-top: 1.25em;
}

.reading-prose p,
.reading-prose li,
.reading-prose span,
.reading-prose div {
    color: var(--reading-text) !important;
    font-family: inherit;
}

.reading-prose h1,
.reading-prose h2,
.reading-prose h3,
.reading-prose h4 {
    font-family: var(--reading-sans);
    color: var(--reading-heading) !important;
    font-weight: 700;
    letter-spacing: -0.011em;
    line-height: 1.25;
}

.reading-prose h2 {
    font-size: 1.75rem;
    margin-top: 2em;
    margin-bottom: 0.5em;
    padding-bottom: 0;
    border-bottom: none;
}

.reading-prose h3 {
    font-size: 1.375rem;
    margin-top: 1.75em;
    color: var(--reading-heading) !important;
}

.reading-prose strong,
.reading-prose b {
    color: var(--reading-heading) !important;
    font-weight: 700;
}

.reading-prose a {
    color: inherit !important;
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-color: rgba(0, 0, 0, 0.4);
    font-weight: inherit;
}

.reading-prose a:hover {
    color: var(--reading-heading) !important;
    text-decoration-color: var(--reading-heading);
}

.reading-prose ul,
.reading-prose ol {
    padding-left: 1.5em;
    margin: 1.25em 0;
}

.reading-prose li {
    margin: 0.4em 0;
}

.reading-prose blockquote {
    margin: 1.75em 0;
    padding: 0 0 0 1.25rem;
    border-left: 3px solid var(--reading-heading);
    background: none;
    border-radius: 0;
    font-style: italic;
    color: var(--reading-text-soft) !important;
}

.reading-prose blockquote p {
    color: var(--reading-text-soft) !important;
}

.reading-prose hr {
    border: none;
    border-top: 1px solid var(--reading-border);
    margin: 2.5em 0;
}

.reading-prose code {
    font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.85em;
    background: #f3f3f3;
    color: var(--reading-heading) !important;
    padding: 0.15em 0.35em;
    border-radius: 0.2rem;
    border: none;
}

.reading-prose pre {
    position: relative;
    background: #f7f7f7 !important;
    border: 1px solid var(--reading-border);
    border-radius: 0.25rem;
    padding: 1.25rem 1rem 1rem;
    overflow-x: auto;
    margin: 1.75em 0;
    font-size: 0.9375rem;
    line-height: 1.55;
}

.reading-prose pre code {
    background: none !important;
    padding: 0;
    color: var(--reading-heading) !important;
}

.reading-prose img {
    max-width: 100%;
    height: auto;
    border-radius: 0;
    margin: 2em auto;
    display: block;
    border: none;
}

.reading-prose table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
    margin: 1.75em 0;
    font-family: var(--reading-sans);
}

.reading-prose th,
.reading-prose td {
    border: 1px solid var(--reading-border-strong);
    padding: 0.625rem 0.75rem;
    text-align: left;
}

.reading-prose th {
    background: #fafafa;
    color: var(--reading-heading) !important;
    font-weight: 600;
}

.reading-prose .external-url {
    display: inline;
    background: none;
    border: none;
    font-family: inherit;
    font-size: inherit;
    color: inherit !important;
    word-break: break-word;
    text-decoration: underline;
}

/* Progress bar — thin black line like Medium */
#reading-progress,
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: var(--reading-heading);
    z-index: 9999;
    pointer-events: none;
    transition: width 0.08s linear;
}

.sticky-social-sidebar {
    display: none;
    position: fixed;
    top: 11rem;
    left: max(1rem, calc(50% - 24rem));
    z-index: 40;
    flex-direction: column;
    gap: 0.5rem;
}

@media (min-width: 1200px) {
    .sticky-social-sidebar {
        display: flex;
        left: max(1.5rem, calc(50% - 26rem - 3.5rem));
    }
}

.sticky-social-sidebar a,
.sticky-social-sidebar button {
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--reading-muted);
    background: #fff;
    border: 1px solid var(--reading-border-strong);
    border-radius: 9999px;
    transition: color 0.15s, border-color 0.15s, box-shadow 0.15s;
    text-decoration: none;
    font-size: 0.875rem;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.sticky-social-sidebar a:hover,
.sticky-social-sidebar button:hover {
    color: var(--reading-heading);
    border-color: #ccc;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.sticky-social-sidebar .bg-linkedin,
.sticky-social-sidebar .bg-facebook,
.sticky-social-sidebar .bg-x,
.sticky-social-sidebar .bg-reddit,
.sticky-social-sidebar .bg-bluesky,
.sticky-social-sidebar .bg-rss,
.sticky-social-sidebar .bg-email,
.sticky-social-sidebar .bg-whatsapp {
    background: #fff;
}

.copy-code-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    font-family: var(--reading-sans);
    border-radius: 0.25rem;
    border: 1px solid var(--reading-border-strong);
    background: #fff;
    color: var(--reading-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}

.reading-prose pre:hover .copy-code-btn {
    opacity: 1;
}

.copy-code-btn.copied {
    background: #ecfdf5;
    border-color: #6ee7b7;
    color: #047857;
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.reading-card {
    background: #fafafa;
    border: 1px solid var(--reading-border);
    border-radius: 0;
    padding: 2rem;
}

.reading-page .project-cta {
    max-width: var(--reading-measure);
    margin: 3rem auto;
    background: #fafafa;
    border: 1px solid var(--reading-border);
    border-radius: 0;
    padding: 2.5rem 2rem;
    text-align: center;
}

.reading-page .project-cta h3 {
    font-family: var(--reading-sans);
    color: var(--reading-heading);
    font-size: 1.375rem;
}

.reading-page .project-cta p {
    color: var(--reading-text-soft);
    font-family: var(--reading-serif);
    font-size: 1.0625rem;
    line-height: 1.58;
}

.reading-page .project-related {
    max-width: var(--reading-measure);
    margin: 0 auto;
    padding-top: 3rem;
    border-top: 1px solid var(--reading-border);
}

.reading-page .project-related h3 {
    font-family: var(--reading-sans);
    color: var(--reading-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.reading-page .project-related-card {
    background: #fafafa;
    border: 1px solid var(--reading-border);
    border-radius: 0;
    padding: 1.25rem;
}

.reading-page .project-related-card h4 {
    font-family: var(--reading-sans);
    color: var(--reading-heading);
    font-weight: 600;
}

.reading-page .project-related-card p {
    color: var(--reading-muted);
    font-family: var(--reading-sans);
    font-size: 0.875rem;
}

.reading-page .project-related-card:hover {
    border-color: var(--reading-border-strong);
    transform: none;
    background: #f5f5f5;
}

.reading-page .loading-shimmer {
    background: linear-gradient(90deg, #f3f3f3 25%, #e8e8e8 50%, #f3f3f3 75%);
    background-size: 200% 100%;
}

.reading-header .reading-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.25rem;
    max-width: var(--reading-measure);
    margin-left: auto;
    margin-right: auto;
}

.reading-page .reading-actions a {
    font-family: var(--reading-sans);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 9999px;
    padding: 0.5rem 1.25rem;
    transition: opacity 0.2s;
}

.reading-page .reading-actions .btn-primary {
    background: var(--reading-brand);
    color: #fff;
}

.reading-page .reading-actions .btn-secondary {
    background: transparent;
    color: var(--reading-heading);
    border: 1px solid var(--reading-border-strong);
}

@media (max-width: 640px) {
    .reading-shell {
        padding: 0 1.25rem 3rem;
    }

    .reading-prose,
    .reading-prose.prose {
        font-size: 1.125rem;
    }
}

@media print {
    .reading-page { background: #fff; color: #000; }
    nav, footer, .sticky-social-sidebar, #reading-progress, #back-to-top { display: none !important; }
}