/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Typography */
    --font-display: 'Instrument Serif', Georgia, serif;
    --font-body: 'Geist', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

    /* Modular Scale */
    --step-0: 0.875rem;
    --step-1: 1.0625rem;
    --step-2: 1.25rem;
    --step-3: 1.5rem;
    --step-4: 2rem;
    --step-5: 2.75rem;
    --step-6: 3.5rem;

    /* Font sizes (non-modular-scale, UI text) */
    --font-size-lg: 1.125rem;
    --font-size-sm: 0.9375rem;
    --font-size-xs: 0.8125rem;
    --font-size-2xs: 0.75rem;

    --line-height-body: 1.7;
    --line-height-heading: 1.2;
    --line-height-code: 1.5;

    /* Light Mode Colors */
    --color-bg: #FAFAF9;
    --color-bg-elevated: #FFFFFF;
    --color-bg-subtle: #F3F1EE;
    --color-text: #292524;
    --color-text-secondary: #57534E;
    --color-text-muted: #A8A29E;
    --color-border: #E7E5E4;
    --color-border-subtle: #F0EEEC;

    /* Admonition Colors - GitHub Alerts */
    --color-note-border: #0969da;
    --color-note-bg: #cceaff;
    --color-note-text: #0550ae;
    --color-tip-border: #1a7f37;
    --color-tip-bg: #c4f5d6;
    --color-tip-text: #116329;
    --color-important-border: #8250df;
    --color-important-bg: #dedeff;
    --color-important-text: #6e40c9;
    --color-warning-border: #9a6700;
    --color-warning-bg: #fced9f;
    --color-warning-text: #7d4e00;
    --color-caution-border: #cf222e;
    --color-caution-bg: #fad6d4;
    --color-caution-text: #a40e26;

    /* Accent - Cobalt Blue */
    --color-accent: #2870C2;
    --color-accent-hover: #1A5AA8;
    --color-accent-subtle: #EBF3FF;
    --color-accent-muted: #7AB8E8;
    /* Brand accent - fixed cobalt, same in both themes (used where color must not shift) */
    --color-accent-brand: #2870C2;

    /* Links */
    --color-link: #2870C2;
    --color-link-hover: #1A7FFF;
    --color-link-visited: #78716C;

    /* Tags */
    --color-tag-bg: #EBF3FF;
    --color-tag-text: #1A5AA8;
    --color-tag-border: #AECFF5;

    /* Code */
    --color-code-bg: #F5F5F4;
    --color-code-text: #1C1917;

    /* Selection */
    --color-selection: #AECFF5;
    --color-selection-text: #1C1917;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.04);
    --shadow-md: 0 4px 12px rgba(28, 25, 23, 0.06);
    --shadow-lg: 0 12px 32px rgba(28, 25, 23, 0.08);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Layout */
    --max-width: 1100px;
    --content-width: 850px;
    --header-height: 80px;

    /* Icons */
    --icon-stroke-normal: 2;
    --icon-stroke-bold: 3;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-theme: 100ms ease;

    /* Blur */
    --blur-backdrop: 6px;
    --backdrop-overlay: rgba(0, 0, 0, 0.45);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Z-Index Ladder */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-backdrop: 300;
    --z-modal: 400;
    --z-toast: 500;
    --z-noise: 9999;

    color-scheme: light;
}

/* Dark Mode */
:root[data-theme="dark"] {
    color-scheme: dark;
    --color-bg: #0C0A09;
    --color-bg-elevated: #1C1917;
    --color-bg-subtle: #1C1917;
    --color-text: #E7E5E4;
    --color-text-secondary: #A8A29E;
    --color-text-muted: #78716C;
    --color-border: #292524;
    --color-border-subtle: #1C1917;

    --color-note-border: #1f6feb;
    --color-note-bg: #0d2d47;
    --color-note-text: #79c0ff;
    --color-tip-border: #238636;
    --color-tip-bg: #0a2e18;
    --color-tip-text: #56d364;
    --color-important-border: #8957e5;
    --color-important-bg: #21143d;
    --color-important-text: #d2a8ff;
    --color-warning-border: #9e6a03;
    --color-warning-bg: #2f2300;
    --color-warning-text: #e3b341;
    --color-caution-border: #da3633;
    --color-caution-bg: #2d0b0b;
    --color-caution-text: #ff7b72;

    --color-accent: #5A9FDE;
    --color-accent-hover: #7AB8E8;
    --color-accent-subtle: #0A1E3D;
    --color-accent-muted: #163E70;

    --color-link: #4D9FFF;
    --color-link-hover: #80BFFF;
    --color-link-visited: #A8A29E;

    --color-tag-bg: #0A1E3D;
    --color-tag-text: #7AB8E8;
    --color-tag-border: #163E70;

    --color-code-bg: #1C1917;
    --color-code-text: #FAFAF9;

    --color-selection: #163E70;
    --color-selection-text: #FAFAF9;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);

    --backdrop-overlay: rgba(0, 0, 0, 0.6);
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
.svg-icon {
    display: inline-block;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
    scrollbar-gutter: stable;
    background-color: var(--color-bg);
}

body {
    font-family: var(--font-body);
    font-size: var(--step-1);
    line-height: var(--line-height-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    width: 100%;
    overflow-x: hidden; /* clip horizontal overflow here instead of html */
    display: flex;
    flex-direction: column;
    /* No baseline transition on body - color transitions are opt-in via .theme-transition
       to avoid sluggish hover states and inadvertent color animations site-wide. */
}

/* Noise texture overlay - promoted to its own compositor layer for performance */
body::before {
    content: '';
    position: fixed;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    pointer-events: none;
    opacity: 0.02;
    z-index: var(--z-noise);
    /* will-change: transform promotes to compositor layer without wasting a layer for a static animation */
    will-change: transform;
    backface-visibility: hidden;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

::selection {
    background-color: var(--color-selection);
    color: var(--color-selection-text);
}

/* Screen-reader-only utility - visually hidden but announced by AT */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}


/* --------------------------------------------------------------------------
   Container & Layout
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

main,
footer {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-lg);
    overflow-anchor: none;
}


/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--color-text);
    line-height: var(--line-height-heading);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
    scroll-margin-top: 70px;
    position: relative; /* For absolute positioned anchor links */
}

h5,
h6 {
    color: var(--color-text);
    line-height: var(--line-height-heading);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
    /* body-weight headings - use normal tracking, not display negative */
    letter-spacing: normal;
    scroll-margin-top: 70px;
    position: relative; /* For absolute positioned anchor links */
}

/* Custom Heading Copy Links */
.heading-copy-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    opacity: 0.5; /* More faint */
    transition: color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
    text-decoration: none;
    
    /* Default (mobile): inline, just before text */
    position: relative;
    margin-right: 0.5rem;
    vertical-align: middle;
    top: -0.1em;
}

@media (min-width: 1025px) {
    .heading-copy-link {
        /* Desktop: outdented */
        position: absolute;
        right: 100%;
        margin-right: 0;
        padding-right: 0.5rem;
        top: 50%;
        transform: translateY(-50%);
        vertical-align: baseline;
    }
}

.heading-copy-link .svg-icon,
.heading-copy-link svg {
    width: 0.5em; /* Noticeably smaller than the heading */
    height: 0.5em;
    stroke-width: 3;
}

.heading-copy-link:hover {
    color: var(--color-link); /* Highlighted on hover */
    opacity: 1;
    transform: scale(1.1);
}

@media (min-width: 1025px) {
    .heading-copy-link:hover {
        transform: translateY(-50%) scale(1.1);
    }
}

h1 {
    font-size: var(--step-5);
    margin-top: 0;
}

h2 {
    font-size: var(--step-4);
}

h3 {
    font-size: var(--step-3);
}

.filter-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-md);
}

.filter-heading {
    margin-bottom: 0;
}

.filter-clear {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
    background-color: var(--color-bg-elevated);
    border: 2px solid var(--color-accent-muted);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.filter-clear i,
.filter-clear svg {
    width: 14px;
    height: 14px;
}

.filter-clear:hover {
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent);
    text-decoration: none;
    transform: translateY(-1.5px);
}

.text-accent {
    color: var(--color-accent);
}

.also-found-header {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    font-size: var(--step-0);
    color: var(--color-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cross-tax-heading {
    margin-top: 0;
    font-size: var(--step-2);
}

h4 {
    font-size: var(--step-2);
}

h5,
h6 {
    font-size: var(--step-1);
    font-family: var(--font-body);
    font-weight: 600;
}

p {
    margin-top: 0;
    margin-bottom: var(--space-lg);
}

strong,
b {
    font-weight: 600;
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Links
   -------------------------------------------------------------------------- */
a {
    color: var(--color-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-link-hover);
}

/* Underline style for content links */
article a:not(.tag):not(.zola-anchor),
main p a:not(.tag),
main li a:not(.tag) {
    text-decoration: underline;
    text-decoration-color: var(--color-accent-muted);
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

article a:not(.tag):not(.zola-anchor):hover,
main p a:not(.tag):hover,
main li a:not(.tag):hover {
    text-decoration-color: var(--color-link-hover);
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
header {
    width: 100%;
    border-bottom: 1px solid var(--color-border-subtle);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
}

.header-right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-sm);
}

.title {
    text-decoration: none;
    display: inline-block;
}

.title:hover {
    opacity: 0.8;
}

.name {
    font-family: var(--font-display);
    font-size: var(--step-4);
    /* Instrument Serif only ships weight 400; browser synthesises bold - intentional design choice */
    font-weight: 600;
    margin: 0;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

nav {
    display: contents;
}

.search-btn.search-btn-mobile {
    display: none;
}

#unified-topics-view {
    display: none;
}

body.show-unified-taxonomy #default-taxonomy-view {
    display: none !important;
}

body.show-unified-taxonomy #unified-topics-view {
    display: block !important;
}

.taxonomy-topic-group {
    margin-bottom: var(--space-lg);
}

.mobile-menu-btn,
.mobile-close-btn,
.mobile-menu-backdrop {
    display: none;
}

.no-scroll {
    overflow: hidden;
}

.nav-items {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: var(--space-xs);
}

.nav-items a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.nav-items a i,
.nav-items a svg {
    width: 15px;
    height: 15px;
}

.nav-items a:hover {
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent);
    transform: translateY(-1.5px);
}

.nav-items a.active {
    color: var(--color-text);
}

/* Search Button */
.search-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 40px;
    padding: 0 var(--space-xs);
    background: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.search-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    transform: translateY(-1.5px);
}

.search-btn i,
.search-btn svg {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

.search-btn-shortcut {
    font-size: var(--font-size-2xs);
    font-family: var(--font-mono);
    padding: 2px var(--space-xs);
    background: var(--color-border-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    opacity: 0.8;
}

.search-btn-text {
    display: none;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    transform: translateY(-1.5px);
}

.theme-toggle i,
.theme-toggle svg {
    width: 20px;
    height: 20px;
}

html[data-theme="dark"] .theme-toggle .theme-icon-light,
html[data-theme="light"] .theme-toggle .theme-icon-dark {
    display: none;
}

html[data-theme="dark"] .theme-toggle .theme-icon-dark,
html[data-theme="light"] .theme-toggle .theme-icon-light {
    display: inline-flex;
}

/* Search Modal */
.search-modal {
    --color-border: #A8A29E;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0.2s ease;
}

:root[data-theme="dark"] .search-modal {
    --color-border: #292524;
}

.search-modal.active {
    visibility: visible;
    pointer-events: auto;
}

.search-modal-backdrop {
    position: absolute;
    inset: 0;
    background: var(--backdrop-overlay);
    backdrop-filter: blur(var(--blur-backdrop));
    -webkit-backdrop-filter: blur(var(--blur-backdrop));
    opacity: 0;
    transition: opacity 0.2s ease;
}

.search-modal.active .search-modal-backdrop {
    opacity: 1;
}

.search-modal-content {
    position: relative;
    width: 90%;
    max-width: 640px;
    max-height: 70vh;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(-10px) scale(0.98);
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0;
}

.search-modal.active .search-modal-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.search-modal-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
    gap: var(--space-md);
    position: relative;
}

.search-input-icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    min-width: 0;
    height: 40px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: transparent;
    font-size: var(--font-size-lg);
    font-family: var(--font-body);
    color: var(--color-text);
    outline: none;
    padding: var(--space-xs) 48px var(--space-xs) var(--space-sm);
}

.search-input:focus {
    border-color: var(--color-accent);
    outline: none;
}

.search-input::placeholder {
    color: var(--color-text-muted);
}


.search-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.search-close:hover {
    background-color: var(--color-accent-subtle);
    color: var(--color-text);
    border-color: var(--color-accent);
    transform: translateY(-1.5px);
}

.search-close svg {
    width: 20px;
    height: 20px;
}

.search-results {
    overflow-y: auto;
    padding: var(--space-sm);
    max-height: calc(70vh - 80px);
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

.toc-inner {
    max-height: calc(100vh - 12rem);
    overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

/* Let the inner scroll when open */
.toc.is-open .toc-inner {
    overflow-y: auto;
}

.search-empty-state {
    padding: var(--space-md);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.search-group {
    margin-bottom: var(--space-md);
}

.search-group:last-child {
    margin-bottom: 0;
}

.search-group-title {
    font-size: var(--font-size-2xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: var(--space-xs) var(--space-sm);
    margin: 0 0 var(--space-xs) 0;
}

.search-group-count {
    font-weight: 400;
    color: var(--color-text-muted);
}

.search-result-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    transition: background-color var(--transition-fast);
    cursor: pointer;
}

.search-result-item:hover,
.search-result-item:focus {
    background-color: var(--color-border);
    outline: none;
}

/* Note: dark-mode hover resolves to the same token - no override needed */

.search-result-title {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.search-result-item:hover .search-result-title,
.search-result-item:focus .search-result-title {
    color: var(--color-link);
}

.search-result-desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.search-modal-footer {
    display: none;
}

@media screen and (min-width: 768px) {
    .search-modal-footer {
        display: flex;
        justify-content: center;
        align-items: center;
        padding: var(--space-sm) var(--space-md);
        border-top: 1px solid var(--color-border);
        background-color: var(--color-bg-subtle);
        border-radius: 0 0 var(--radius-md) var(--radius-md);
    }
}

.search-shortcuts {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.shortcut-group {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.shortcut-group kbd {
    font-size: 14px;
    font-weight: 200;
    padding: 2px 6px;
    background-color: rgba(128, 128, 128, 0.15);
    border: 1px solid rgba(128, 128, 128, 0.2);
    min-width: 24px;
    text-align: center;
    border-radius: var(--radius-sm);
}

.shortcut-group kbd svg {
    width: 14px;
    height: 14px;
    vertical-align: middle;
}


/* Dark mode adjustments */
:root[data-theme="dark"] .search-modal-content {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Article Cover */
.article-cover {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--color-border-subtle);
    background-color: var(--color-bg-subtle);
}

.article-cover img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 60vh;
    object-fit: cover;
}

/* Share Block */
.share-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    margin-bottom: var(--space-md);
}

.share-icons {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.share-label {
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: var(--step-0);
}

.share-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.share-icon:hover {
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent);
    color: var(--color-text);
    transform: translateY(-2px);
}

.share-icon svg {
    width: 20px;
    height: 20px;
}

/* Post Navigation */
.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
    padding-bottom: var(--space-md);
}

.nav-prev,
.nav-next {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    max-width: 48%;
}

.nav-prev {
    align-items: flex-start;
    text-align: left;
}

.nav-next {
    align-items: flex-end;
    text-align: right;
}

.nav-prev:has(a:hover) .nav-label,
.nav-prev:has(a:hover) .nav-title,
.nav-next:has(a:hover) .nav-label,
.nav-next:has(a:hover) .nav-title {
    color: var(--color-link);
    text-decoration: none !important;
}

.nav-label {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--step-2);
    font-family: var(--font-display);
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-prev i,
.nav-next i,
.nav-prev svg,
.nav-next svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-title {
    font-weight: 400;
    font-size: var(--step--1);
    color: var(--color-text-secondary);
    line-height: 1.4;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-prev .nav-title-wrapper {
    padding-left: 24px;
}

.nav-next .nav-title-wrapper {
    padding-right: 24px;
}

.nav-prev.empty,
.nav-next.empty {
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   Home Page
   -------------------------------------------------------------------------- */
.home-container {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
    margin-bottom: var(--space-lg);
}

.home-title {
    font-size: var(--step-4);
    font-weight: 400;
}

.cli-prompt {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 700;
}

.home-content p:last-of-type {
    margin-bottom: 0;
}


.home-content {
    flex: 1;
}


.home-content p:first-of-type {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

main>h2+p {
    color: var(--color-text-secondary);
}

main > h2 .cli-prompt {
    margin-left: -0.15em;
}

.featured-subtitle {
    margin-left: 0;
    margin-bottom: var(--space-xs);
}

.featured-posts-list {
    padding-left: 1.25rem;
}

.featured-posts-list li::marker {
    font-size: 1.15em;
}

.home-image {
    flex-shrink: 0;
    width: 150px;
    align-self: center;
}

.img-rounded {
    width: 100%;
    border-radius: var(--radius-full);
    border: 3px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.img-rounded:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   Blog Post Lists
   -------------------------------------------------------------------------- */
ul.blog-posts {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

ul.blog-posts li {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
    padding: var(--space-md) 0;
    transition: background-color var(--transition-fast),
        border-color var(--transition-fast);
    position: relative;
    border-bottom: 1px solid var(--color-border-subtle);
}

ul.blog-posts li:last-child {
    border-bottom: none;
}

ul.blog-posts li a::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
}



ul.blog-posts li:hover {
    background-color: var(--color-border);
    margin-left: calc(-1 * var(--space-md));
    margin-right: calc(-1 * var(--space-md));
    padding-left: var(--space-md);
    padding-right: var(--space-md);
    border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   Topics UI
   -------------------------------------------------------------------------- */
.topics-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.8rem;
    margin-top: var(--space-2xl);
}

.topic-pill {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--step-0);
    font-family: var(--font-mono);
    transition: all var(--transition-base);
}

.topic-pill:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.topic-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-border);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    padding: 0 0.4rem;
    margin-left: 0.5rem;
    min-width: 1.5rem;
    height: 1.5rem;
    box-shadow: inset 0 0 0 1px transparent;
    transition: all var(--transition-base);
}

.topic-pill:hover .topic-count {
    background-color: var(--color-bg);
    color: var(--color-accent);
    box-shadow: inset 0 0 0 1px var(--color-accent);
}

:root[data-theme="dark"] ul.blog-posts li:hover {
    background-color: var(--color-border);
}

ul.blog-posts li span:not(.draft-tag):not(.category-badge):not(.post-title-wrapper) {
    flex: 0 0 110px;
    font-size: var(--step-0);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

ul.blog-posts li a {
    color: var(--color-text);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul.blog-posts li a:visited {
    color: var(--color-text);
}

ul.blog-posts li a:hover {
    color: var(--color-link);
}

/* --------------------------------------------------------------------------
   Article / Post Page
   -------------------------------------------------------------------------- */
article,
.post-content {
    line-height: 1.75;
    color: var(--color-text-secondary);
    text-wrap: pretty;
}

article {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    width: 100%;
}


.post-content>*:first-child {
    margin-top: 0;
}

.post-content>hr:last-child {
    margin-bottom: 0;
}

@media screen and (min-width: 1025px) {
    .post-content.restricted-width {
        width: 90%;
        max-width: var(--content-width);
        margin: 0 auto;
        align-self: center;
    }

    .tags.restricted-width {
        width: 90%;
        max-width: var(--content-width);
        margin-left: auto;
        margin-right: auto;
        align-self: center;
    }
}

/* Base rule (all screen sizes) - critical for mobile horizontal scroll */
.table-responsive-wrapper {
    overflow-x: auto;
    margin: var(--space-lg) 0;
}

article h1 {
    font-size: var(--step-5);
    margin-bottom: var(--space-lg);
    text-align: center;
    word-break: break-word;
    overflow-wrap: break-word;
}

.meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--space-lg);
    margin-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
}

.meta:has(~ #toc-sentinel) {
    margin-bottom: var(--space-sm);
}

.post-date,
.reading-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--step-0);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
}

.post-date .svg-icon,
.reading-time .svg-icon {
    width: 1.2em;
    height: 1.2em;
    position: relative;
    top: -1px;
}

/* Table of Contents */
#toc-sentinel {
    margin-top: var(--space-lg);
}

.toc {
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-top: 0;
    margin-bottom: var(--space-lg);

    position: sticky;
    top: -1px;
    z-index: var(--z-sticky);
    transition: border-radius 0.3s ease, border-color 0.3s ease;
    overflow: visible;
}

.toc.is-open {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border-bottom-color: transparent;
}

.toc.restricted-width {
    width: 100%;
    max-width: 910px;
    /* Matches the article width initially */
    margin-left: auto;
    margin-right: auto;
    transition: border-radius 0.3s ease, border-color 0.3s ease;
}

.toc.is-stuck:not(.restricted-width) {
    margin-left: calc(-1 * var(--space-lg));
    margin-right: calc(-1 * var(--space-lg));
    border-left-width: 0;
    border-right-width: 0;
}

.toc.is-stuck,
.toc.restricted-width.is-stuck {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    border-top-color: transparent;
}

.toc.is-stuck.is-open {
    border-radius: 0;
}

.toc.restricted-width.is-stuck {
    max-width: 920px;
    border-left-width: 0;
    border-right-width: 0;
}

@media screen and (max-width: 1024.98px) {
    .toc.restricted-width:not(.is-stuck) {
        width: 100%;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
}

@media screen and (min-width: 1025px) {
    .toc.restricted-width {
        width: calc(90% + 50px);
        align-self: center;
    }

    .toc.restricted-width.is-stuck {
        width: calc(90% + 60px);
        margin-left: auto;
        margin-right: auto;
        align-self: center;
        max-width: 920px;
    }
}

.toc-title {
    padding: var(--space-sm) var(--space-lg);
    /* transition padding removed for performance */

    font-family: var(--font-body);
    font-weight: 450;
    font-size: var(--step-1);
    color: var(--color-text-secondary);
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color var(--transition-fast);
}

.toc-title:hover {
    color: var(--color-link);
}

.toc-icon {
    transition: transform 0.3s ease, color var(--transition-fast);
    color: var(--color-text-muted);
    width: 22px;
    height: 22px;
}

.toc-title:hover .toc-icon {
    color: var(--color-link);
}

.toc.is-open .toc-icon {
    transform: rotate(180deg);
}

.toc-content {
    display: block;
    transition: opacity 0.3s ease-out, visibility 0.3s;
    opacity: 0;
    visibility: hidden;

    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-top: none;
    border-left: none;
    border-right: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    box-shadow: -2px 0 0 var(--color-border), 2px 0 0 var(--color-border), var(--shadow-md);
    clip-path: inset(0 -20px -20px -20px);
    z-index: 20;
}

.toc.is-stuck .toc-content {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    left: 0;
    width: 100%;
    box-shadow: var(--shadow-md);
    border-left: none;
    border-right: none;
}

.toc.is-open .toc-content {
    opacity: 1;
    visibility: visible;
}

.toc-inner {
    overflow: hidden;
    max-height: 0;
    /* max-height is more reliable than grid-template-rows on mobile browsers */
    padding: 0 var(--space-lg);
    opacity: 0;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
    transition: opacity 0.3s ease-out;
}

.toc.is-open .toc-inner {
    max-height: 50vh;
    padding: 0 var(--space-lg) var(--space-sm) var(--space-lg);
    opacity: 1;
}

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

.toc ul ul {
    padding-left: var(--space-lg);
    margin-top: var(--space-xs);
}

.toc li {
    margin-bottom: var(--space-xs);
    line-height: 1.4;
}

.toc li:last-child {
    margin-bottom: 0;
}

.toc a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast), font-weight var(--transition-fast);
}

.toc a.active {
    color: var(--color-link);
    font-weight: 600;
}

.toc a:hover {
    color: var(--color-link);
}

/* Section Headers */
.section-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border-subtle);
}

.section-header h1 {
    margin-bottom: var(--space-sm);
}

.section-description {
    font-size: var(--step-1);
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Anchor Links */
h2,
h3,
h4,
h5,
h6 {
    position: relative;
}

.zola-anchor {
    font-family: var(--font-mono);
    font-size: 0.75em;
    font-weight: 400;
    color: var(--color-text-muted);
    text-decoration: none;
    margin-left: var(--space-sm);
    opacity: 0;
    transition: opacity var(--transition-fast), color var(--transition-fast);
    vertical-align: middle;
}


h2:hover .zola-anchor,
h3:hover .zola-anchor,
h4:hover .zola-anchor,
h5:hover .zola-anchor,
h6:hover .zola-anchor {
    opacity: 0.5;
}

.zola-anchor:hover {
    opacity: 1;
    color: var(--color-link);
}

/* Article Title & Copy URL */
.article-title {
    margin-top: calc(var(--space-sm) * -1);
    margin-bottom: var(--space-xs) !important;
}

.title-copy-url {
    text-align: center;
    margin-bottom: var(--space-md);
}

.copy-url-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none !important;
    transition: color var(--transition-fast);
}

.copy-url-btn:hover {
    color: var(--color-link);
    text-decoration: none !important;
}

.copy-url-btn svg {
    margin-right: 0.35rem;
    width: 1.1em;
    height: 1.1em;
}

.article-meta {
    padding-bottom: var(--space-sm) !important;
}

/* --------------------------------------------------------------------------
   Tags
   -------------------------------------------------------------------------- */
.tags-label {
    width: 100%; /* Force flex items to wrap below */
    text-align: center;
    font-size: 0.75rem; /* Much smaller */
    color: var(--color-text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0; /* Reduced gap */
}

.tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 0;
}

.tags>a,
a.tag {
    display: inline-flex;
    align-items: center;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-tag-text);
    background-color: var(--color-tag-bg);
    border: 2px solid var(--color-tag-border);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-fast);
    text-transform: lowercase;
}

.tags>a:hover,
a.tag:hover {
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent);
    color: var(--color-text);
    transform: translateY(-1.5px);
}

:root[data-theme="dark"] .tags>a:hover,
:root[data-theme="dark"] a.tag:hover {
    border-color: var(--color-accent-hover);
}

/* Section Tags (bottom of section pages) */
.section-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-subtle);
}

.section-tags a {
    text-transform: lowercase;
}

/* --------------------------------------------------------------------------
   Code & Pre
   -------------------------------------------------------------------------- */
code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    font-weight: 400;
    background-color: var(--color-bg-subtle);
    color: var(--color-code-text);
    border: 2px solid var(--color-border);
    padding: 0.2em 0.45em;
    border-radius: var(--radius-md);
    -webkit-font-smoothing: antialiased;
}

kbd {
    font-family: var(--font-mono);
    font-size: 0.85em;
    font-weight: 500;
    color: var(--color-text);
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-bottom-width: 2px;
    border-radius: var(--radius-md);
    padding: 0.1em 0.4em;
}

mark {
    background-color: var(--color-accent-subtle);
    color: var(--color-text);
    padding: 0 0.2em;
    border-radius: var(--radius-md);
}

abbr[title] {
    text-decoration: underline dotted var(--color-text-muted);
    cursor: help;
}

sub,
sup {
    font-size: 0.75em;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
}

sup {
    top: -0.5em;
}

sub {
    bottom: -0.25em;
}


/* Code block container */
pre {
    position: relative;
    border-radius: var(--radius-lg);
    /* overflow: hidden removed to allow sticky copy button */
    margin: var(--space-xl) 0;
    box-shadow:
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06);
    color-scheme: light !important;
    display: grid;
}

:root[data-theme="dark"] pre {
    color-scheme: dark !important;
}

/* Code inside pre */
pre code {
    grid-area: 1 / 1;
    display: block;
    padding: var(--space-lg) var(--space-xl);
    font-size: var(--step-0);
    line-height: var(--line-height-code);
    /* By default, code does not wrap and scrolls horizontally */
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
    background: transparent;
    border: none;
    border-radius: 0;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

/* Custom Scrollbar for Code Blocks */
pre code::-webkit-scrollbar {
    height: 8px;
    width: 8px;
}
pre code::-webkit-scrollbar-track {
    background: transparent;
    border-radius: var(--radius-full);
}
pre code::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: var(--radius-full);
}
pre code::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-text-muted);
}

/* Optional soft-wrapping enabled via config/frontmatter */
.wrap-code pre code {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "liga" 1, "calt" 1;
    /* Enable ligatures */
}




/* Line numbers (if enabled) */
pre .line-number {
    opacity: 0.4;
    user-select: none;
    padding-right: var(--space-md);
    text-align: right;
    min-width: 2.5em;
}

/* Copy Code Button */
.copy-code-btn {
    grid-area: 1 / 1;
    position: sticky;
    top: calc(50px + var(--space-sm));
    /* Account for sticky TOC height (~50px) */
    justify-self: end;
    align-self: start;
    margin-top: var(--space-sm);
    margin-right: var(--space-sm);
    margin-bottom: var(--space-md);
    z-index: var(--z-dropdown);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-base),
        background-color var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast);
}

/* Clear the horizontal scrollbar when code doesn't wrap */
.nowrap-code .copy-code-btn {
    margin-bottom: var(--space-lg);
}

pre:hover .copy-code-btn,
.copy-code-btn:focus,
.copy-code-btn.copied {
    opacity: 1;
}

.copy-code-btn:hover {
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
    border-color: var(--color-accent);
}

.copy-code-btn.copied {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.copy-code-btn svg,
.copy-code-btn i {
    width: 20px;
    height: 20px;
}

/* --------------------------------------------------------------------------
   Blockquote
   -------------------------------------------------------------------------- */
blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-md) var(--space-lg);
    border-left: 3px solid var(--color-accent);
    background-color: var(--color-bg-subtle);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

blockquote p:last-child {
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Admonitions - GitHub-style Alerts
   -------------------------------------------------------------------------- */
.admonition {
    margin: var(--space-xl) 0;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-border);
    background-color: transparent;
    font-style: normal;
}

.admonition .admonition-header {
    display: flex;
    align-items: center;
    gap: 0.5em;
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
    text-transform: none;
    letter-spacing: normal;
}

.admonition .admonition-header i,
.admonition .admonition-header svg {
    flex-shrink: 0;
    width: 1em;
    height: 1em;
}

.admonition p:last-child {
    margin-bottom: 0;
}

/* Note - Blue */
.admonition.note {
    background-color: var(--color-note-bg);
    border-color: var(--color-note-border);
}

.admonition.note .admonition-header {
    color: var(--color-note-text);
}

/* Tip - Green */
.admonition.tip {
    background-color: var(--color-tip-bg);
    border-color: var(--color-tip-border);
}

.admonition.tip .admonition-header {
    color: var(--color-tip-text);
}

/* Important - Purple */
.admonition.important {
    background-color: var(--color-important-bg);
    border-color: var(--color-important-border);
}

.admonition.important .admonition-header {
    color: var(--color-important-text);
}

/* Warning - Amber */
.admonition.warning {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning-border);
}

.admonition.warning .admonition-header {
    color: var(--color-warning-text);
}

/* Caution - Red */
.admonition.caution {
    background-color: var(--color-caution-bg);
    border-color: var(--color-caution-border);
}

.admonition.caution .admonition-header {
    color: var(--color-caution-text);
}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-lg) 0;
    font-size: var(--font-size-sm);
}

th,
td {
    padding: var(--space-sm) var(--space-md);
    border-bottom: 2px solid var(--color-border);
}

th {
    font-weight: 600;
    text-align: left;
    color: var(--color-text);
    background-color: var(--color-bg-subtle);
}

td {
    text-align: left;
}

tr:hover td {
    background-color: var(--color-accent-subtle);
}

tr:hover td a:hover {
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Images & Figures
   -------------------------------------------------------------------------- */
img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

iframe {
    max-width: 100% !important;
    display: block;
}

figure {
    margin: var(--space-xl) 0;
    padding: 0;
    background: transparent;
    box-shadow: none;
}

figure img {
    display: block;
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

figure img:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-lg);
}

figcaption {
    text-align: center;
    margin-top: var(--space-sm);
    font-size: var(--step-0);
    color: var(--color-text-muted);
    font-style: italic;
}

/* Image Grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.image-grid a {
    display: block;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.image-grid img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
    transition: transform var(--transition-base);
}

.image-grid a:hover img {
    transform: scale(1.03);
}

.image-grid a:nth-child(odd):last-child {
    grid-column: 1 / -1;
    max-width: 50%;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------------- */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: var(--z-modal);
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(12, 10, 9, 0.95);
    cursor: pointer;
    backdrop-filter: blur(var(--blur-backdrop));
    -webkit-backdrop-filter: blur(var(--blur-backdrop));
}

.lightbox-modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn var(--transition-base);
}

.lightbox-modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    animation: zoomIn var(--transition-base);
    cursor: default;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.lightbox-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-xl);
    color: var(--color-text);
    font-size: var(--step-4);
    font-weight: 300;
    cursor: pointer;
    transition: opacity var(--transition-fast);
    opacity: 0.7;
    background: none;
    border: none;
    padding: 0;
}

.lightbox-close:hover {
    opacity: 1;
}

.lightbox-thumbnail {
    cursor: zoom-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* --------------------------------------------------------------------------
   Projects
   -------------------------------------------------------------------------- */
.projects-section {
    width: 100%;
}

.projects-section h2 {
    font-size: var(--step-3);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
}

.projects-section h2:first-child {
    margin-top: 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.project-card {
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.project-card:hover {
    border-color: var(--color-accent-brand);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.project-card.featured {
    position: relative;
}

.project-card.featured::after {
    content: "Featured";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: white;
    background-color: var(--color-accent-brand);
    padding: 3px 12px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--space-sm);
}

.project-name {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--font-size-lg);
    margin: 0;
    color: var(--color-text);
}

.project-stars,
.project-forks {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    line-height: 1;
}

.project-stats {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.project-stars svg,
.project-stars i,
.project-forks svg,
.project-forks i {
    width: 13px;
    height: 13px;
    color: var(--color-accent);
    stroke-width: var(--icon-stroke-normal);
}

.project-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-md) 0;
    line-height: 1.6;

    flex: 1;
}

.project-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.project-lang {
    font-size: var(--font-size-xs);
    font-family: var(--font-mono);
    color: var(--color-text-muted);
    padding: var(--space-xs) var(--space-sm);
    background-color: var(--color-bg-elevated);
    border-radius: var(--radius-md);
}

:root[data-theme="dark"] .project-lang {
    background-color: var(--color-border);
}

.project-links {
    display: flex;
    gap: var(--space-2xl);
}





/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
input,
textarea {
    font-family: var(--font-body);
    font-size: 1rem;
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

textarea {
    width: 100%;
    min-height: 120px;
    resize: vertical;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
footer {
    /* padding-left/right are handled by the shared header,main,footer rule */
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-top: 1px solid var(--color-border-subtle);
    color: var(--color-text-secondary);
    font-size: var(--step-0);
    font-weight: 500;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.footer-left,
.footer-right {
    flex: 1;
}

.footer-left {
    text-align: left;
}

.footer-center {
    flex: 1;
    text-align: center;
    white-space: nowrap;
}

.heart-icon {
    width: 18px;
    height: 18px;
    stroke: none;
    vertical-align: middle;
    margin: 0 2px;
    filter: drop-shadow(0 2px 2px rgba(225, 29, 72, 0.4));
}

.footer-right {
    display: flex;
    justify-content: flex-end;
}

.social-links {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    margin-top: 0;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--color-text-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.social-icon:hover {
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent);
    transform: translateY(-1.5px);
}

.social-icon svg,
.social-icon i {
    width: 20px;
    height: 20px;
}

@media screen and (max-width: 600px) {
    .footer-inner {
        flex-direction: column;
        text-align: center;
        gap: var(--space-sm);
    }

    .footer-left,
    .footer-center,
    .footer-right {
        flex: none;
        width: 100%;
        text-align: center;
    }

    .footer-right,
    .social-links {
        justify-content: center;
    }
}

/* --------------------------------------------------------------------------
   YouTube Embeds
   -------------------------------------------------------------------------- */
.youtube-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin: var(--space-xl) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.youtube-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   Lists
   -------------------------------------------------------------------------- */
ul,
ol {
    padding-left: var(--space-lg);
    margin-bottom: var(--space-lg);
}

li {
    margin-bottom: var(--space-sm);
}

li::marker {
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Horizontal Rule
   -------------------------------------------------------------------------- */
hr {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin: var(--space-2xl) 0;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fade-out {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

@keyframes slide-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------------------------
   Post License
   -------------------------------------------------------------------------- */
.post-license {
    margin-top: var(--space-xl);
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

main {
    animation: fadeInUp 0.5s ease-out;
}

/* Respect OS-level reduced-motion preference.
   Targets only named animations defined on this site - NOT a wildcard rule,
   which would clobber the browser's built-in cursor-blink animation. */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto !important; }
    main {
        animation: none;
    }

    .lightbox-modal.active,
    .lightbox-modal img {
        animation: none;
    }


    .theme-toggle,
    .search-btn,
    .search-close,
    .search-modal-content,
    .search-result-item,
    .back-to-top,
    .tags>a,
    a.tag,
    .project-card,
    .social-icon,
    .img-rounded,
    figure img,
    .nav-items,
    .mobile-menu-backdrop,
    .pagination-btn,
    .pagination-number,
    .copy-code-btn {
        transition: none;
    }
}

/* Theme transition - opt-in, applied only during toggle */
:root:has(.theme-transition),
.theme-transition,
.theme-transition *,
.theme-transition *::before,
.theme-transition *::after {
    transition: all var(--transition-theme) !important;
}

/* --------------------------------------------------------------------------
   Back to Top Button
   -------------------------------------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: calc(var(--radius-md) + 2px);
    border: none;
    background: conic-gradient(var(--color-accent) var(--scroll-progress, 0%), transparent 0);
    color: var(--color-text-muted);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity var(--transition-base),
        transform var(--transition-base),
        color var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.back-to-top::before {
    content: '';
    position: absolute;
    inset: 3px;
    background-color: var(--color-bg-elevated);
    border: 2px solid var(--color-accent-muted);
    border-radius: var(--radius-md);
    z-index: 0;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    color: var(--color-text);
    transform: translateY(-1.5px);
}

.back-to-top:hover::before {
    background-color: var(--color-accent-subtle);
    border-color: var(--color-accent);
}

.back-to-top i,
.back-to-top svg {
    position: relative;
    z-index: 1;
    width: 24px;
    height: 24px;
}

/* --------------------------------------------------------------------------
   Focus-Visible Styles (keyboard navigation)
   -------------------------------------------------------------------------- */
.theme-toggle:focus-visible,
.search-btn:focus-visible,
.mobile-menu-btn:focus-visible,
.mobile-close-btn:focus-visible,
.back-to-top:focus-visible,
.copy-code-btn:focus-visible,
.search-close:focus-visible,
.social-icon:focus-visible,
.pagination-btn:focus-visible,
.pagination-number:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

@media screen and (max-width: 1024.98px) {
    .back-to-top {
        bottom: var(--space-lg);
        right: var(--space-md);
        width: 44px;
        height: 44px;
    }

    .post-navigation {
        flex-direction: column;
        gap: var(--space-xl);
    }

    .nav-prev,
    .nav-next {
        max-width: 100%;
    }
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media screen and (max-width: 1024.98px) {
    :root {
        --max-width: 100%;
    }

    html {
        font-size: 15px;
    }

    h1 {
        font-size: calc(var(--step-5) * 0.9);
    }

    h2 {
        font-size: calc(var(--step-4) * 0.9);
    }

    h1, h2, h3, h4, h5, h6 {
        scroll-margin-top: 145px;
    }

    .copy-code-btn {
        top: calc(115px + var(--space-sm));
    }

    header {
        position: sticky;
        top: 0;
        z-index: 400;
        background-color: var(--color-bg);
    }
    
    .header-inner {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: var(--space-md);
    }

    header .title {
        text-align: center;
    }

    nav {
        display: contents;
    }

    .theme-toggle {
        margin-right: 0;
    }

    .name {
        font-size: 1.75rem;
        margin-bottom: 0;
        line-height: 1.2;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--color-bg-subtle);
        border: 2px solid var(--color-border);
        border-radius: var(--radius-md);
        cursor: pointer;
        color: var(--color-text-secondary);
        transition: all var(--transition-fast);
        order: -1;
    }

    .mobile-menu-btn:hover {
        border-color: var(--color-accent);
        color: var(--color-text);
        background-color: var(--color-accent-subtle);
        transform: translateY(-1.5px);
    }

    .mobile-close-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--color-bg-subtle);
        border: 2px solid var(--color-border);
        border-radius: var(--radius-md);
        cursor: pointer;
        color: var(--color-text-secondary);
        align-self: flex-end;
        order: -2;
        margin-bottom: var(--space-md);
        z-index: 2;
        transition: all var(--transition-fast);
        flex-shrink: 0;
    }

    .mobile-close-btn:hover,
    .mobile-close-btn:active {
        border-color: var(--color-accent);
        color: var(--color-text);
        background-color: var(--color-accent-subtle);
        transform: translateY(-1.5px);
    }

    .mobile-close-btn svg,
    .mobile-close-btn i {
        width: 20px;
        height: 20px;
    }

    .mobile-menu-btn svg,
    .mobile-menu-btn i {
        width: 20px;
        height: 20px;
    }

    .mobile-menu-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: var(--backdrop-overlay);
        backdrop-filter: blur(var(--blur-backdrop));
        -webkit-backdrop-filter: blur(var(--blur-backdrop));
        z-index: var(--z-backdrop);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .mobile-menu-backdrop.active {
        opacity: 1;
        visibility: visible;
    }



    .nav-items {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        max-width: 80vw;
        background: var(--color-bg);
        z-index: var(--z-modal);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-xl) var(--space-lg);
        transform: translateX(calc(-100% - 40px));
        transition: transform 0.3s ease;
        box-shadow: var(--shadow-lg);
        border-right: 2px solid var(--color-border);
        gap: var(--space-sm);
        overflow-y: auto;
    }

    .nav-items.active {
        transform: translateX(0);
    }

    .nav-items a {
        width: 100%;
        padding: var(--space-sm);
        border-radius: var(--radius-md);
        font-size: 1.1rem;
        gap: 12px;
    }

    .nav-items a:last-of-type {
        margin-bottom: auto;
    }

    .nav-items a svg,
    .nav-items a i {
        width: 18px;
        height: 18px;
    }

    .search-btn {
        margin: 0;
        margin-top: auto;
        margin-bottom: var(--space-md);
        width: 100%;
        order: -1;
        align-self: flex-start;
        justify-content: flex-start;
        font-size: 1.1rem;
        font-weight: 500;
        padding: 0 var(--space-sm);
        gap: 12px;
        height: 40px;
    }

    .search-btn i,
    .search-btn svg {
        width: 20px;
        height: 20px;
    }

    .search-btn-text {
        display: inline;
    }

    .search-btn-shortcut {
        display: none;
    }

    main,
    footer {
        padding-left: var(--space-md);
        padding-right: var(--space-md);
    }

    header {
        display: flex;
        align-items: center;
        position: sticky;
        top: 0;
        z-index: 400;
        background-color: var(--color-bg);
    }

    .title {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        z-index: 10;
    }

    nav {
        display: flex;
        align-items: center;
        width: 100%;
        justify-content: space-between;
    }

    .header-right {
        display: contents;
    }

    .search-btn-desktop {
        display: none;
    }

    .search-btn.search-btn-mobile {
        display: flex;
    }

    .home-container {
        flex-direction: column-reverse;
        align-items: center;
        text-align: center;
        gap: var(--space-lg);
    }

    .home-image {
        width: 120px;
        transform: none;
    }

    ul.blog-posts li {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    ul.blog-posts li a {
        font-size: 1.1rem;
        text-wrap: pretty;
    }

    ul.blog-posts li span:not(.draft-tag):not(.category-badge):not(.post-title-wrapper) {
        flex: none;
    }

    ul.blog-posts li:hover {
        margin-left: 0;
        margin-right: 0;
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }

    .meta {
        flex-direction: column;
        align-items: center;
        gap: var(--space-xs);
    }



    .image-grid {
        grid-template-columns: 1fr;
    }

    .image-grid a:nth-child(odd):last-child {
        grid-column: auto;
        max-width: 100%;
    }

    .toc {
        top: calc(40px + 2 * var(--space-md));
    }

    .toc.is-stuck,
    .toc.restricted-width.is-stuck {
        margin-left: calc(-1 * var(--space-md));
        margin-right: calc(-1 * var(--space-md));
        width: calc(100% + 2 * var(--space-md));
        max-width: none;
    }

    .toc.is-stuck .toc-title {
        padding: var(--space-sm) var(--space-md);
    }

    .toc.is-stuck.is-open .toc-inner {
        padding: 0 var(--space-md) var(--space-sm) var(--space-md);
    }
}

@media screen and (max-width: 1024.98px) and (max-height: 450px) {
    .nav-items {
        width: 450px;
        max-width: 85vw;
        display: grid;
        grid-template-columns: max-content max-content;
        justify-content: center;
        grid-auto-rows: min-content;
        gap: var(--space-md) var(--space-xl);
        padding: var(--space-md) var(--space-lg);
        overflow-y: auto;
        align-content: center;
        border-right: 2px solid var(--color-border);
    }

    .search-btn {
        grid-column: 1 / -1;
        grid-row: 1;
        margin: 0;
        margin-bottom: var(--space-xs);
        width: 100%;
        justify-content: flex-start;
        padding: 0 var(--space-sm);
        order: unset;
    }

    .mobile-close-btn {
        position: absolute;
        top: var(--space-md);
        right: var(--space-lg);
        margin: 0;
        order: unset;
    }



    .nav-items a:first-of-type {
        grid-column: 1;
        grid-row: 2;
    }

    .nav-items a {
        grid-column: auto;
        width: 100%;
        margin: 0;
        justify-content: flex-start;
    }

    .nav-items a:last-of-type {
        margin-bottom: 0;
    }
}

@media screen and (max-width: 480px) {
    h1 {
        font-size: var(--step-4);
    }

    article h1 {
        font-size: var(--step-4);
        text-wrap: balance;
    }

    .theme-toggle {
        width: 40px;
        height: 40px;
    }
}

/* --------------------------------------------------------------------------
   Draft Banner
   -------------------------------------------------------------------------- */
.draft-banner {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-xl);
    background: linear-gradient(135deg, #F4F9FF 0%, #EBF3FF 100%);
    border: 2px dashed var(--color-accent);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: var(--step-0);
}

:root[data-theme="dark"] .draft-banner {
    background: linear-gradient(135deg, #292524 0%, #44403C 100%);
    border-color: var(--color-accent);
}

.draft-icon {
    font-size: var(--step-2);
}

.draft-text {
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

.draft-note {
    color: var(--color-text-secondary);
    font-weight: 400;
}

.draft-tag {
    display: inline-block;
    margin-left: var(--space-sm);
    padding: 2px 6px;
    font-size: 0.6875rem;
    font-weight: 600;
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
    color: var(--color-text);
    background-color: var(--color-tag-bg);
    border: 2px dashed var(--color-accent);
    border-radius: var(--radius-md);
    vertical-align: middle;
}

.category-badge {
    display: inline-block;
    margin-left: var(--space-sm);
    padding: 0.15rem 0.4rem;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    vertical-align: middle;
}

.post-title-wrapper {
    display: inline;
}

.post-title-wrapper a,
.post-title-wrapper .category-badge {
    margin-right: 0.35rem;
}

.post-title-wrapper .draft-tag,
.post-title-wrapper .category-badge {
    margin-left: 0;
}

@media screen and (max-width: 480px) {
    .draft-banner {
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
        gap: var(--space-xs) var(--space-sm);
    }

    .draft-note {
        width: 100%;
    }
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    font-family: var(--font-body);
}

.pagination-btn,
.pagination-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-xs);
    background-color: var(--color-bg-elevated);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.pagination-btn {
    padding: 0 var(--space-md);
}

.pagination-btn:hover:not(.disabled),
.pagination-number:hover:not(.disabled) {
    border-color: var(--color-accent);
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1.5px);
}

.pagination-btn.disabled,
.pagination-number.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: transparent;
    color: var(--color-text-muted);
    pointer-events: none;
}

.pagination-ellipsis {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 36px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.pagination-numbers {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 var(--space-sm);
}

.pagination-number.active {
    border-color: var(--color-accent);
    color: var(--color-text);
    background-color: var(--color-accent-subtle);
    font-weight: 700;
    cursor: default;
}

@media screen and (max-width: 600px) {
    .pagination {
        flex-wrap: wrap;
    }

    .pagination-numbers {
        order: -1;
        width: 100%;
        justify-content: center;
        margin: 0;
    }

    /* Target 'Prev' button (2nd child) to separate it from 'Next' */
    .pagination>*:nth-child(2) {
        /* Total gap = 36px (width of page button). margin-right = 36px - 12px (flex gap) */
        margin-right: var(--space-lg);
    }

    .pagination-btn {
        padding: 0 var(--space-lg);
    }
}

/* --------------------------------------------------------------------------
   AJAX Pagination
   -------------------------------------------------------------------------- */
.pagination-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    transition: opacity var(--transition-fast);
}

.pagination-container.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   Empty State
   -------------------------------------------------------------------------- */
.empty-state-item {
    padding: var(--space-xl) 0;
    border-bottom: none;
}

.empty-state {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-style: italic;
}

/* --------------------------------------------------------------------------
   404 Page
   -------------------------------------------------------------------------- */
main:has(.page-404-content) {
    display: flex;
    flex-direction: column;
    padding-top: 0;
    padding-bottom: 0;
}

.page-404-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--space-sm);
}

.page-404-content h1 {
    font-size: 5rem;
    margin-bottom: var(--space-sm);
}

.page-404-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-lg);
}

.page-404-content a i,
.page-404-content a svg {
    width: 16px;
    height: 16px;
    vertical-align: middle;
    margin-right: var(--space-xs);
    transition: color var(--transition-fast);
}

.page-404-content a:hover i,
.page-404-content a:hover svg {
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Suppress table margin when inside responsive wrapper (set via JS)
   -------------------------------------------------------------------------- */
table.in-wrapper {
    margin: 0;
}

/* --------------------------------------------------------------------------
   Contact Page
   -------------------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.contact-card {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    column-gap: var(--space-sm);
    align-items: center;
    text-align: left;
    padding: var(--space-md);
    background-color: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: transform var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-accent);
    background-color: var(--color-accent-subtle);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.contact-card-icon {
    grid-row: 1 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-accent);
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.contact-card:hover .contact-card-icon {
    border-color: var(--color-accent);
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
}

.contact-card-icon svg {
    width: 18px;
    height: 18px;
}

.contact-card-platform {
    font-weight: 600;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    line-height: 1.2;
    align-self: end;
}

.contact-card-handle {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    line-height: 1.2;
    align-self: start;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


@media screen and (max-width: 600px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    body::before {
        display: none;
    }

    header,
    footer,
    .theme-toggle {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    a {
        color: black;
        text-decoration: underline;
    }

    pre,
    code {
        border: 2px solid var(--color-border);
    }
}

/* ==========================================================================
   Sitemap Styles
   ========================================================================== */

.sitemap-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.sitemap-items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.sitemap-item-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-subtle);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    min-height: 4rem;
}

.sitemap-item-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
    background-color: var(--color-accent-subtle);
    color: var(--color-text);
}

.sitemap-item-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    line-height: 1.4;
    display: flex;
    align-items: center;
    gap: 6px;
}

.sitemap-text-wrapper {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--color-text-secondary);
}

.sitemap-item-card:hover .sitemap-item-title {
    color: var(--color-text);
}

.sitemap-item-badge {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.55rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: white;
    background-color: var(--color-accent-brand);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.sitemap-icon-wrapper {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.sitemap-icon-wrapper svg,
.sitemap-icon-wrapper i {
    width: 14px;
    height: 14px;
    stroke-width: var(--icon-stroke-bold);
    display: inline-block;
}

/* Mermaid diagrams */
.mermaid {
    margin: var(--space-xl) 0;
    display: flex;
    justify-content: center;
    overflow: hidden;
}

.mermaid svg {
    height: auto;
    font-size: 15px;
    font-weight: 500;
}


/* --------------------------------------------------------------------------
   Services
   -------------------------------------------------------------------------- */

.services-grid {
    grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
}

.service-card {
    align-items: center;
    text-align: center;
    height: 100%;
}

.service-header {
    justify-content: center;
    margin-bottom: var(--space-xs);
}

.card-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.card-link:hover {
    color: var(--color-link-hover);
}

.card-link svg {
    color: var(--color-accent);
}

/* Squeeze header items between 1025px and 1100px */
@media screen and (min-width: 1025px) and (max-width: 1100px) {
    nav {
        gap: var(--space-xs);
    }
    .nav-items {
        gap: 0;
    }
    .nav-items a {
        padding: var(--space-xs) 8px;
    }
}


/* Added for JS refactoring */
body.no-scroll { overflow: hidden; }
.toc.is-open .toc-inner { overflow-y: auto; }
body.show-unified-taxonomy #default-taxonomy-view { display: none !important; }
body.show-unified-taxonomy #unified-topics-view { display: block !important; }

/* --------------------------------------------------------------------------
   Simple Blur for Post Content when TOC is open
   -------------------------------------------------------------------------- */
.post-content {
    transition: filter 0.3s ease, -webkit-filter 0.3s ease;
}

.toc.is-open ~ .post-content {
    filter: blur(var(--blur-backdrop)) brightness(0.55);
    -webkit-filter: blur(var(--blur-backdrop)) brightness(0.55);
    pointer-events: none;
    user-select: none;
}

:root[data-theme="dark"] .toc.is-open ~ .post-content {
    filter: blur(var(--blur-backdrop)) brightness(0.4);
    -webkit-filter: blur(var(--blur-backdrop)) brightness(0.4);
}

/* --------------------------------------------------------------------------
   Custom Tooltip
   -------------------------------------------------------------------------- */
.custom-tooltip {
    position: absolute;
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
    border: 1px solid var(--color-text-muted);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: var(--font-size-2xs);
    font-weight: 500;
    pointer-events: none;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease, visibility 0.15s ease;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
}

.custom-tooltip.visible {
    opacity: 1;
    visibility: visible;
}

/* --------------------------------------------------------------------------
   Footnotes Offset (Accounts for sticky Header menu and Sticky TOC menu)
   -------------------------------------------------------------------------- */
/* Jumping down to the footnote list */
[id^="fn-"] {
    scroll-margin-top: 60px;
}

/* Returning back up to the text reference */
[id^="fr-"] {
    scroll-margin-top: 70px;
}

/* If the reference in text is inline, ensure it can have scroll-margin */
sup[id^="fr-"] {
    display: inline-block;
}

@media screen and (max-width: 1024.98px) {
    /* Jumping down to the footnote list (Mobile) */
    [id^="fn-"] {
        scroll-margin-top: 125px; /* Stops closer to the header */
    }

    /* Returning back up to the text reference (Mobile) */
    [id^="fr-"] {
        scroll-margin-top: 160px; /* Clears the sticky TOC */
    }
}

/* --------------------------------------------------------------------------
   Footnotes Styling & Title
   -------------------------------------------------------------------------- */
/* Hide the default hr that Zola might inject before footnotes if present */
hr:has(+ .footnotes) {
    display: none;
}

/* Add a "Footnotes" title to the footnotes container */
.footnotes::before {
    content: "Footnotes";
    display: block;
    font-size: calc(var(--step-4) * 0.9);
    font-family: var(--font-display);
    color: var(--color-text);
    font-weight: 400;
    margin-top: var(--space-md);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

/* Style the ordered list of footnotes */
ol.footnotes-list {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-body);
    margin-bottom: var(--space-2xl);
    padding-left: 0;
    list-style: none;
    counter-reset: footnotes-counter;
}

ol.footnotes-list li {
    counter-increment: footnotes-counter;
    background-color: var(--color-bg-subtle);
    border: 1px solid var(--color-border-subtle);
    border-radius: 8px;
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-sm);
    
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0 var(--space-md);
    align-items: start;
}

ol.footnotes-list li::before {
    content: counter(footnotes-counter) ".";
    font-weight: 600;
    color: var(--color-text);
    grid-column: 1;
    grid-row: 1;
}

ol.footnotes-list li p {
    grid-column: 2;
    margin: 0;
}