428 lines
12 KiB
CSS
428 lines
12 KiB
CSS
@import "tailwindcss";
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/* Dark mode: class-based (for @wrksz/themes) */
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@custom-variant dark (&:is(.dark));
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/* === Design Tokens === */
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@theme {
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/* Colors — Light mode defaults */
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--color-canvas: oklch(1 0 0);
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--color-surface: oklch(0.98 0 0);
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--color-ink: oklch(0.08 0 0);
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--color-ink-soft: oklch(0.40 0 0);
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--color-border: oklch(0.92 0 0);
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--color-accent: oklch(0.45 0.18 250);
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/* Code blocks — Light mode */
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--color-code-block: oklch(0.97 0 0);
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--color-code-block-hover: oklch(0.95 0 0);
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--color-code-gutter: oklch(0.50 0 0);
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--color-code-gutter-border: oklch(0.90 0 0);
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--color-code-title-bg: oklch(0.95 0 0);
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--color-code-title-text: oklch(0.40 0 0);
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--color-code-line-highlight: oklch(0.92 0.02 250 / 0.3);
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--color-code-line-highlight-border: oklch(0.45 0.20 250);
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--color-code-mark-bg: oklch(0.90 0.03 250 / 0.4);
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--color-code-copy: oklch(0.40 0 0);
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--color-code-copy-hover: oklch(0.25 0 0);
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--color-code-dot-red: oklch(0.60 0.22 15);
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--color-code-dot-yellow: oklch(0.75 0.18 65);
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--color-code-dot-green: oklch(0.65 0.18 140);
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--radius-code: 0.75rem;
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/* Fonts — override defaults */
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--font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
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--font-serif: 'Inter', -apple-system, system-ui, sans-serif;
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--font-mono: "JetBrains Mono", ui-monospace, monospace;
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/* Typography scale */
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--text-xs: 0.75rem; --text-xs--line-height: 1.2;
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--text-sm: 0.875rem; --text-sm--line-height: 1.4;
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--text-base: 1rem; --text-base--line-height: 1.5;
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--text-lg: 1.125rem; --text-lg--line-height: 1.6;
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--text-xl: 1.25rem; --text-xl--line-height: 1.6;
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--text-2xl: 1.5rem; --text-2xl--line-height: 2rem;
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--text-3xl: 1.875rem; --text-3xl--line-height: 2.25rem;
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--text-4xl: 2.25rem; --text-4xl--line-height: 2.5rem;
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--text-5xl: 3rem; --text-5xl--line-height: 1.1;
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/* Shadows */
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--shadow-card: 0 1px 3px oklch(0 0 0 / 0.08);
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/* Animations */
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--animate-fade-in: fade-in 0.3s ease-out;
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--animate-fade-in-up: fade-in-up 0.4s ease-out;
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--animate-slide-up: slide-up 0.5s ease-out;
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@keyframes fade-in {
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from { opacity: 0; }
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to { opacity: 1; }
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}
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@keyframes fade-in-up {
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from { opacity: 0; transform: translateY(12px); }
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to { opacity: 1; transform: translateY(0); }
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}
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@keyframes slide-up {
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from { opacity: 0; transform: translateY(24px); }
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to { opacity: 1; transform: translateY(0); }
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}
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}
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@layer base {
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body {
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font-family: var(--font-serif);
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font-weight: 400;
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line-height: 1.6;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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}
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h1, h2, h3, h4, h5, h6 {
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font-family: var(--font-sans);
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font-weight: 700;
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line-height: 1.25;
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letter-spacing: -0.015em;
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}
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h1 { line-height: 1.15; letter-spacing: -0.025em; }
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h2 { line-height: 1.2; letter-spacing: -0.02em; }
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code, pre, kbd, samp {
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font-family: var(--font-mono);
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font-feature-settings: 'liga' 1, 'calt' 1;
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}
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a {
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text-underline-offset: 3px;
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text-decoration-thickness: 1px;
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transition: text-decoration-thickness 0.15s ease;
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}
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a:hover {
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text-decoration-thickness: 3px;
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}
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}
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/* === Dark mode token overrides === */
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.dark {
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--color-canvas: oklch(0 0 0);
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--color-surface: oklch(0.07 0 0);
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--color-ink: oklch(1 0 0);
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--color-ink-soft: oklch(0.72 0 0);
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--color-border: oklch(0.17 0 0);
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--color-accent: oklch(0.68 0.20 250);
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/* Code blocks — Dark mode */
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--color-code-block: oklch(0.04 0 0);
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--color-code-block-hover: oklch(0.06 0 0);
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--color-code-gutter: oklch(0.30 0 0);
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--color-code-gutter-border: oklch(0.14 0 0);
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--color-code-title-bg: oklch(0.03 0 0);
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--color-code-title-text: oklch(0.55 0 0);
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--color-code-line-highlight: oklch(0.12 0.02 250 / 0.3);
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--color-code-line-highlight-border: oklch(0.68 0.20 250);
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--color-code-mark-bg: oklch(0.10 0.03 250 / 0.4);
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--color-code-copy: oklch(0.60 0 0);
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--color-code-copy-hover: oklch(0.85 0 0);
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--shadow-card: 0 1px 4px oklch(1 0 0 / 0.06);
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}
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/* === Code Blocks: Borderless, VS Code Style, Line Numbers === */
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[data-rehype-pretty-code-figure] {
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@apply relative overflow-hidden rounded-[var(--radius-code)];
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background-color: var(--color-code-block);
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border: none;
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box-shadow: 0 0 0 1px var(--color-border),
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0 2px 8px oklch(0 0 0 / 0.06);
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}
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.dark [data-rehype-pretty-code-figure] {
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box-shadow: 0 0 0 1px var(--color-border),
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0 2px 8px oklch(1 0 0 / 0.04);
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}
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[data-rehype-pretty-code-title] {
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@apply relative flex items-center gap-2.5 px-4 py-2 text-xs;
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background-color: var(--color-code-title-bg);
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border-bottom: 1px solid var(--color-border);
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border-radius: var(--radius-code) var(--radius-code) 0 0;
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}
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.dark [data-rehype-pretty-code-title] {
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background-color: var(--color-code-title-bg);
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}
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[data-rehype-pretty-code-title] + pre {
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@apply m-0 rounded-b-[var(--radius-code)] rounded-t-none;
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}
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[data-rehype-pretty-code-title] .vscode-dots {
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@apply inline-flex gap-[6px] mr-2;
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}
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[data-rehype-pretty-code-title] .vscode-dots span {
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@apply block h-2.5 w-2.5 rounded-full;
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}
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[data-rehype-pretty-code-title] .dot-red {
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background-color: var(--color-code-dot-red);
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box-shadow: inset 0 0 0 0.5px oklch(0 0 0 / 0.15);
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}
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[data-rehype-pretty-code-title] .dot-yellow {
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background-color: var(--color-code-dot-yellow);
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box-shadow: inset 0 0 0 0.5px oklch(0 0 0 / 0.15);
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}
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[data-rehype-pretty-code-title] .dot-green {
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background-color: var(--color-code-dot-green);
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box-shadow: inset 0 0 0 0.5px oklch(0 0 0 / 0.15);
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}
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[data-rehype-pretty-code-figure] pre {
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@apply relative overflow-auto p-4;
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}
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[data-rehype-pretty-code-figure] pre code {
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@apply !bg-transparent font-mono text-[13px] leading-[1.6];
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display: grid;
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}
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[data-rehype-pretty-code-figure] code[data-line-numbers] {
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counter-reset: line;
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}
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[data-rehype-pretty-code-figure] code[data-line-numbers] > [data-line]::before {
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counter-increment: line;
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content: counter(line);
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@apply mr-5 inline-block w-4 text-right select-none;
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color: oklch(0.30 0 0);
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@apply text-[11px] font-mono;
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}
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.dark [data-rehype-pretty-code-figure] code[data-line-numbers] > [data-line]::before {
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color: oklch(0.60 0 0);
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}
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[data-rehype-pretty-code-figure] [data-line] {
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@apply relative px-2;
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border-left: 2px solid transparent;
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}
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[data-rehype-pretty-code-figure] [data-highlighted-line] {
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@apply rounded-r-sm;
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background-color: var(--color-code-line-highlight);
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border-left-color: var(--color-code-line-highlight-border);
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}
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[data-rehype-pretty-code-figure] [data-highlighted-chars] {
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@apply rounded py-0.5 px-1;
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background-color: var(--color-code-mark-bg);
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}
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[data-rehype-pretty-code-figure] .rehype-pretty-copy {
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@apply absolute right-3 top-3 z-10 flex items-center gap-1 rounded-md border px-2 py-1 text-xs font-medium;
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background-color: oklch(0.97 0 0 / 0.85);
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color: var(--color-code-copy);
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opacity: 0;
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transition: opacity 0.15s ease;
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}
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.dark [data-rehype-pretty-code-figure] .rehype-pretty-copy {
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background-color: oklch(0.10 0 0 / 0.85);
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color: var(--color-code-copy);
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}
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[data-rehype-pretty-code-figure]:hover .rehype-pretty-copy {
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opacity: 1;
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}
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[data-rehype-pretty-code-figure] .rehype-pretty-copy:hover {
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@apply border-current;
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background-color: oklch(0.95 0 0 / 0.95);
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color: var(--color-code-copy-hover);
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}
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.dark [data-rehype-pretty-code-figure] .rehype-pretty-copy:hover {
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background-color: oklch(0.15 0 0 / 0.95);
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}
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[data-rehype-pretty-code-figure] .rehype-pretty-copy.rehype-pretty-copied {
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@apply border-green-500/50;
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color: oklch(0.55 0.18 140);
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}
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.dark [data-rehype-pretty-code-figure] .rehype-pretty-copy.rehype-pretty-copied {
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color: oklch(0.70 0.15 140);
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}
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/* Shiki dual theme token color switching */
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code[data-theme*=" "],
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code[data-theme*=" "] span {
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color: var(--shiki-light);
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}
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html.dark code[data-theme*=" "],
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html.dark code[data-theme*=" "] span {
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color: var(--shiki-dark);
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}
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/* === KaTeX dark mode overrides === */
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.dark .katex,
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.dark .katex * {
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color: currentColor !important;
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}
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.prose .katex-display {
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color: currentColor !important;
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}
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.prose .katex-display .katex .base {
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color: currentColor !important;
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}
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.katex .mfrac .frac-line,
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.katex .sqrt .sqrt-line,
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.katex .overline .overline-line,
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.katex .underline .underline-line {
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border-color: currentColor !important;
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}
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.katex {
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font-size: 1.1em !important;
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}
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.katex-display {
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overflow: visible;
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max-width: 100%;
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margin: 1.5em 0;
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text-align: center;
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}
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.katex-display > .katex {
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display: block;
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text-align: center;
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white-space: normal;
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}
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@media (max-width: 640px) {
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.katex-display > .katex {
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transform: scale(0.85);
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transform-origin: center top;
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}
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.katex-display {
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margin: 0.8em 0;
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}
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}
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.prose p + .katex-display { margin-top: 0.5em; }
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.prose .katex-display + p { margin-bottom: 0.5em; }
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.prose p .katex { vertical-align: middle; }
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.katex .katex-mathml {
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position: absolute;
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clip: rect(1px, 1px, 1px, 1px);
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padding: 0;
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border: 0;
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}
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/* === Heading utilities === */
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@utility heading-xl {
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font-size: 2.25rem;
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font-weight: 800;
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letter-spacing: -0.025em;
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line-height: 1.1;
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}
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@utility heading-lg {
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font-size: 1.875rem;
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font-weight: 600;
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letter-spacing: -0.025em;
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line-height: 1.2;
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}
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@utility heading-md {
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font-size: 1.5rem;
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font-weight: 600;
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letter-spacing: -0.025em;
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line-height: 1.3;
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}
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@utility heading-sm {
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font-size: 1.25rem;
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font-weight: 600;
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letter-spacing: -0.01em;
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line-height: 1.4;
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}
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/* === Scroll progress bar (CSS animation-timeline + JS fallback) === */
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.scroll-progress {
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position: fixed;
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top: 0;
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left: 0;
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height: 2px;
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width: 0%;
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background: var(--color-ink);
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z-index: 9999;
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will-change: width;
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}
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@keyframes scroll-progress { from { width: 0%; } to { width: 100%; } }
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@supports (animation-timeline: scroll()) {
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.scroll-progress {
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width: 0%;
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animation: scroll-progress linear forwards;
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animation-timeline: scroll(root block);
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}
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}
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/* === Scroll-to-top button === */
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.scroll-to-top {
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position: fixed;
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bottom: 24px;
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right: 24px;
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width: 40px;
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height: 40px;
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border: 1px solid var(--color-border);
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border-radius: 50%;
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background: var(--color-canvas);
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color: var(--color-ink);
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display: flex;
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align-items: center;
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justify-content: center;
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opacity: 0;
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transform: translateY(10px);
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pointer-events: none;
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transition: opacity 0.3s ease, transform 0.3s ease, border-color 0.2s ease;
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z-index: 9997;
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will-change: opacity, transform;
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}
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.scroll-to-top.visible {
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opacity: 1;
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transform: translateY(0);
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pointer-events: auto;
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}
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.scroll-to-top:hover {
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border-color: var(--color-ink);
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}
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/* === Reading progress vertical bar === */
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.reading-progress {
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position: fixed; right: 12px; top: 50%; transform: translateY(-50%);
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width: 3px; height: 60px;
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background: color-mix(in oklch, var(--color-ink) 8%, transparent);
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border-radius: 2px; z-index: 9998; overflow: hidden;
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}
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.dark .reading-progress {
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background: color-mix(in oklch, var(--color-ink) 15%, transparent);
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}
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.reading-progress-fill {
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width: 100%;
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height: 0%;
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background: var(--color-ink);
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border-radius: 2px;
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}
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@keyframes reading-progress { from { height: 0%; } to { height: 100%; } }
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@supports (animation-timeline: scroll()) {
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.reading-progress-fill {
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animation: reading-progress linear forwards;
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animation-timeline: scroll(root block);
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}
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}
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/* === Global transition for theme switch === */
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body, body *, [class*="bg-"], [class*="border-"], [class*="text-"] {
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transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
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}
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/* === Reduced motion === */
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@media (prefers-reduced-motion: reduce) {
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*, *::before, *::after {
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animation-duration: 0.01ms !important;
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animation-iteration-count: 1 !important;
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transition-duration: 0.01ms !important;
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scroll-behavior: auto !important;
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}
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.scroll-progress { display: none; }
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.scroll-to-top { opacity: 0 !important; pointer-events: none !important; }
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.reading-progress { display: none !important; }
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}
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/* === Focus visible for scroll-to-top === */
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.scroll-to-top:focus-visible {
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outline: 2px solid var(--color-accent);
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outline-offset: 2px;
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}
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