/*
Theme Name: localhostMedium
Theme URI: https://localhostnews.com
Author: localhostNews
Description: A clean, Medium-inspired WordPress theme for technical content.
Version: 1.3.3
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 8.0
License: GNU General Public License v2 or later
Text Domain: localhost-medium
*/

/* ==========================================================================
   Design Tokens
   ========================================================================== */

:root {
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #dbeafe;
  --accent-subtle: #eff6ff;

  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-code: #f6f8fa;
  --bg-code-header: #e2e8f0;

  --text-primary: #1a1a2e;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-link: var(--accent);
  --text-code: #1e293b;

  --border-primary: #e2e8f0;
  --border-secondary: #f1f5f9;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);

  --font-serif: Georgia, Cambria, "Times New Roman", Times, serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* FIX #1: Consistent layout widths */
  --content-width: 800px;
  --wide-width: 1100px;
  --max-width: 1200px;
  --header-height: 100px;

  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
}

@media (min-width: 1024px) {
  :root {
    --content-width: 1000px;
    --max-width: 1350px;
  }
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: #1e293b;
  --bg-code: #1a2540;
  --bg-code-header: #233056;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-code: #e2e8f0;
  --border-primary: #334155;
  --border-secondary: #1e293b;
  --accent-light: #1e3a5f;
  --accent-subtle: #0f2744;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -2px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5), 0 4px 6px -4px rgba(0,0,0,0.3);
}

/* ==========================================================================
   Reset & Base — FIX #1: No overflow, contained layout
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden; /* FIX #1 */
}

body {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden; /* FIX #1 */
  width: 100%;
  max-width: 100vw; /* FIX #1 */
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--accent-hover); }

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

/* ==========================================================================
   Reading Progress Bar
   ========================================================================== */

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #60a5fa);
  z-index: 10000;
  transition: width 0.1s linear;
}

/* ==========================================================================
   Site Header — FIX #5: Centered nav, not left-aligned
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-primary);
  transition: background-color var(--transition-base), border-color var(--transition-base);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.92);
}

[data-theme="dark"] .site-header {
  background: rgba(15,23,42,0.92);
}

/* FIX #5: Full-width header inner with space-between, nav centered naturally */
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);  /* more padding so nav isn't at edge */
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-xl);
}

/* FIX #4: SVG logo support */
.site-branding {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-branding .custom-logo {
  height: 80px;
  width: auto;
  max-width: 400px;
  object-fit: contain;
  display: block;
}

/* Force SVG logo to use color-aware fill */
.site-branding .custom-logo[src$=".svg"],
.site-branding svg {
  height: 80px;
}

.site-logo-link {
  display: flex;
  align-items: center;
  height: 80px;
}

.site-logo-svg {
  height: 60px;
  width: 300px;
  aspect-ratio: 300 / 60;
  display: block;
}

/* SVG Logo - Light/Dark Mode Styling with smooth transition */
.logo-term, .logo-host, .logo-news {
  transition: fill var(--transition-base), filter var(--transition-base);
}

/* Light mode styling */
.logo-term {
  fill: #059669; /* emerald green */
  filter: none;
}
.logo-host {
  fill: #0f172a; /* slate/black */
  filter: none;
}
.logo-news {
  fill: #2563eb; /* theme accent blue */
  filter: none;
}

/* Dark mode styling */
[data-theme="dark"] .logo-term {
  fill: url(#greenGradient);
  filter: url(#glowGreen);
}
[data-theme="dark"] .logo-host {
  fill: url(#yellowGradient);
  filter: url(#glowYellow);
}
[data-theme="dark"] .logo-news {
  fill: url(#blueGradient);
  filter: url(#glowBlue);
}

.site-title {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.site-title a { color: inherit; }
.site-title a:hover { color: var(--accent); }

/* FIX #5: Nav takes flex-1 and centers its content */
.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex: 1;  /* fill space between logo and actions */
  flex-wrap: wrap;
  overflow: hidden;
}

/* Support for wp_nav_menu <ul> wrapper */
.primary-nav .nav-menu-list {
  display: flex;
  align-items: center;
  justify-content: inherit;
  flex-wrap: wrap;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}
.primary-nav .nav-menu-list li {
  margin: 0;
}

.primary-nav a {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  white-space: nowrap;
  display: block; /* needed when inside li */
}

.primary-nav a:hover,
.primary-nav a.current,
.primary-nav .current-menu-item > a {
  color: var(--accent);
  background: var(--accent-subtle);
}

.nav-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--accent-subtle);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  margin-left: 4px;
  vertical-align: middle;
}

.hamburger-label {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-left: 4px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.header-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}
.header-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Hamburger: hidden on desktop, shown on mobile via media query */
.hamburger-menu { display: none; }

/* Dark mode toggle: moon shown in light, sun shown in dark */
#themeToggle .icon-sun  { display: none; }
#themeToggle .icon-moon { display: block; }
[data-theme="dark"] #themeToggle .icon-sun  { display: block; }
[data-theme="dark"] #themeToggle .icon-moon { display: none; }

/* Search overlay */
.search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9999;
  backdrop-filter: blur(4px);
}
.search-overlay.active {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
}
.search-overlay form {
  width: 100%;
  max-width: 600px;
  padding: 0 var(--space-lg);
}
.search-overlay input[type="search"] {
  width: 100%;
  padding: 16px 24px;
  font-size: 20px;
  font-family: var(--font-sans);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Main Content — FIX #1: Contained, no overflow
   ========================================================================== */

.site-main {
  min-height: calc(100vh - var(--header-height) - 120px);
  width: 100%;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.content-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  width: 100%;
}

/* ==========================================================================
   FIX #6: Scroll-to-Top / Scroll-to-Bottom Button
   ========================================================================== */

.scroll-nav {
  position: fixed;
  right: var(--space-lg);
  bottom: 90px;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  z-index: 200;
}

.scroll-nav__btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  background: var(--bg-primary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  opacity: 0;
  pointer-events: none;
}

.scroll-nav__btn.visible {
  opacity: 1;
  pointer-events: all;
}

.scroll-nav__btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  transform: scale(1.1);
}

.scroll-nav__btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ==========================================================================
   Post Cards — Homepage
   ========================================================================== */

.posts-grid {
  display: grid;
  gap: var(--space-2xl);
  padding: var(--space-2xl) 0;
}

.post-card.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border-primary);
  max-width: var(--content-width);
  margin: 0 auto;
}

.post-card.hero .post-card__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  order: 2;
}

.post-card.hero .post-card__content {
  order: 1;
}

.post-card.hero .post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.post-card.hero:hover .post-card__image img { transform: scale(1.03); }
.post-card.hero .post-card__title { font-size: 30px; line-height: 1.25; }

/* Regular cards — FIX #1: constrained to container */
.post-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-lg);
  align-items: flex-start;
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border-secondary);
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
}

.post-card__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-width: 0; /* prevent overflow */
}

.post-card__category {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
}

.post-card__title {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  word-break: break-word;
}

.post-card__title a { color: inherit; }
.post-card__title a:hover { color: var(--accent); }

.post-card__excerpt {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
  flex-wrap: wrap;
}

.dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-tertiary);
  flex-shrink: 0;
}

.post-card__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  flex-shrink: 0;
  width: 100%;
}

.post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}
.post-card:hover .post-card__image img { transform: scale(1.05); }

/* Dev mode placeholder image */
.dev-placeholder {
  width: 100%;
  height: 100%;
  min-height: 200px;
  background: #000;
  transition: background var(--transition-base);
  display: block;
}
[data-theme="dark"] .dev-placeholder {
  background: #fff;
}

/* ==========================================================================
   FIX #10: Animated Tile Homepage — flex row layout
   ========================================================================== */

/* Feed container: 3 stacked rows */
.tile-feed {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--space-2xl) 0;
  max-width: var(--content-width);
  margin: 0 auto;
}

/* Each row is an independent flex container */
.tile-row {
  display: flex;
  gap: 10px;
  height: 190px;
  overflow: hidden;
  perspective: 900px;           /* enables 3D flips on child tiles */
  perspective-origin: 50% 50%;
}

/* Tile flex proportions — determine relative width in each row */
.tile-card--s { flex: 1; min-width: 0; }
.tile-card--m { flex: 2; min-width: 0; }
.tile-card--l { flex: 3; min-width: 0; }

/* Base tile card */
.tile-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}

.tile-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ── Initial load entrance (simple scale + fade per tile, staggered) ── */
@keyframes tileEnterInitial {
  0%   { opacity: 0; transform: scale(0.88); }
  60%  { opacity: 1; }
  100% { opacity: 1; transform: scale(1); }
}

.tile-card--entering {
  animation: tileEnterInitial 0.55s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

/* ════════════════════════════════════════════════════════════════════
   Windows Live Tile Rotation Animations
   Each tile in a row gets one of these effects when it rotates.
   ════════════════════════════════════════════════════════════════════ */

/* ── FLIP-H: horizontal card flip (rotate around Y axis) ── */
@keyframes liveTileFlipHOut {
  0%   { transform: rotateY(0deg)   scaleX(1);    opacity: 1; }
  100% { transform: rotateY(-90deg) scaleX(0.4);  opacity: 0; }
}
@keyframes liveTileFlipHIn {
  0%   { transform: rotateY(90deg)  scaleX(0.4);  opacity: 0; }
  100% { transform: rotateY(0deg)   scaleX(1);    opacity: 1; }
}

/* ── FLIP-V: vertical card flip (rotate around X axis, like a page turn) ── */
@keyframes liveTileFlipVOut {
  0%   { transform: rotateX(0deg)   scaleY(1);    opacity: 1; }
  100% { transform: rotateX(75deg)  scaleY(0.3);  opacity: 0; }
}
@keyframes liveTileFlipVIn {
  0%   { transform: rotateX(-75deg) scaleY(0.3);  opacity: 0; }
  100% { transform: rotateX(0deg)   scaleY(1);    opacity: 1; }
}

/* ── SLIDE-UP: new content rises from below (classic Windows cycle) ── */
@keyframes liveTileSlideUpOut {
  0%   { transform: translateY(0);     opacity: 1; }
  100% { transform: translateY(-102%); opacity: 0.5; }
}
@keyframes liveTileSlideUpIn {
  0%   { transform: translateY(102%);  opacity: 0.5; }
  100% { transform: translateY(0);     opacity: 1; }
}

/* ── SLIDE-RIGHT: content sweeps left, new arrives from right ── */
@keyframes liveTileSlideRightOut {
  0%   { transform: translateX(0);     opacity: 1; }
  100% { transform: translateX(-102%); opacity: 0.5; }
}
@keyframes liveTileSlideRightIn {
  0%   { transform: translateX(102%);  opacity: 0.5; }
  100% { transform: translateX(0);     opacity: 1; }
}

/* Animation utility classes – applied by JS per tile */
.tile-anim-out-fliph  { animation: liveTileFlipHOut      0.27s cubic-bezier(0.4, 0, 1, 1)   both; }
.tile-anim-in-fliph   { animation: liveTileFlipHIn       0.30s cubic-bezier(0.0, 0, 0.2, 1) both; }
.tile-anim-out-flipv  { animation: liveTileFlipVOut      0.27s cubic-bezier(0.4, 0, 1, 1)   both; }
.tile-anim-in-flipv   { animation: liveTileFlipVIn       0.30s cubic-bezier(0.0, 0, 0.2, 1) both; }
.tile-anim-out-slideup { animation: liveTileSlideUpOut   0.30s cubic-bezier(0.4, 0, 1, 1)   both; }
.tile-anim-in-slideup  { animation: liveTileSlideUpIn    0.30s cubic-bezier(0.0, 0, 0.2, 1) both; }
.tile-anim-out-slider  { animation: liveTileSlideRightOut 0.30s cubic-bezier(0.4, 0, 1, 1)  both; }
.tile-anim-in-slider   { animation: liveTileSlideRightIn  0.30s cubic-bezier(0.0, 0, 0.2, 1) both; }

.tile-card__image {
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.tile-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.tile-card:hover .tile-card__image img {
  transform: scale(1.04);
}

.tile-card__body {
  padding: 8px 12px;
  background: var(--bg-card);
  flex-shrink: 0;
}

.tile-card__category {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent);
  margin-bottom: 4px;
}

.tile-card--s .tile-card__category { display: none; }

.tile-card__title {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tile-card--l .tile-card__title { font-size: 16px; }
.tile-card--s .tile-card__title { font-size: 12px; -webkit-line-clamp: 1; }

.tile-feed-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-secondary);
  margin: var(--space-lg) auto;
  max-width: var(--content-width);
  width: 100%;
}

.tile-feed-toggle input[type="checkbox"] {
  width: 36px;
  height: 20px;
  appearance: none;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
  transition: background var(--transition-fast);
  border: 1px solid var(--border-primary);
}

.tile-feed-toggle input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.tile-feed-toggle input[type="checkbox"]::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: white;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: left var(--transition-fast);
}

.tile-feed-toggle input[type="checkbox"]:checked::after {
  left: 18px;
}

/* ==========================================================================
   Single Post
   ========================================================================== */

.single-post__header {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
  text-align: center;
}

.single-post__category {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent);
  margin-bottom: var(--space-md);
  padding: 4px 14px;
  background: var(--accent-subtle);
  border-radius: var(--radius-full);
}

.single-post__title {
  font-family: var(--font-sans);
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -1px;
  margin-bottom: var(--space-md);
  word-break: break-word;
}

.single-post__subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

.single-post__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-tertiary);
  flex-wrap: wrap;
}

.single-post__featured-image {
  max-width: var(--wide-width);
  margin: 0 auto var(--space-2xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 0 var(--space-xl);
}

.single-post__featured-image img {
  width: 100%;
  display: block;
  border-radius: var(--radius-lg);
}

/* Post Content — FIX #1: Consistent centering */
.post-content {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.post-content p {
  margin-bottom: var(--space-lg);
  font-size: 19px;
  line-height: 1.8;
}

.post-content h2 {
  font-family: var(--font-sans);
  font-size: 28px;
  font-weight: 700;
  margin: var(--space-3xl) 0 var(--space-md);
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.post-content h3 {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  margin: var(--space-2xl) 0 var(--space-md);
  color: var(--text-primary);
}

.post-content h4 {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  margin: var(--space-xl) 0 var(--space-md);
  color: var(--text-primary);
}

.post-content strong { font-weight: 700; color: var(--text-primary); }
.post-content em { font-style: italic; }

.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(37, 99, 235, 0.35);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-fast);
}
.post-content a:hover { text-decoration-color: var(--accent); }

.post-content blockquote {
  margin: var(--space-xl) 0;
  padding: var(--space-lg) var(--space-xl);
  border-left: 4px solid var(--accent);
  background: var(--bg-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-secondary);
}
.post-content blockquote p:last-child { margin-bottom: 0; }

.post-content ul, .post-content ol {
  margin: 0 0 var(--space-lg);
  padding-left: var(--space-xl);
}
.post-content li {
  margin-bottom: var(--space-sm);
  font-size: 19px;
  line-height: 1.75;
}

.post-content hr {
  border: none;
  height: 1px;
  background: var(--border-primary);
  margin: var(--space-2xl) 0;
}

.post-content img {
  border-radius: var(--radius-md);
  margin: var(--space-xl) auto;
  max-width: 100%;
}

.post-content figure { margin: var(--space-xl) 0; }
.post-content figcaption {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-tertiary);
  text-align: center;
  margin-top: var(--space-sm);
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-xl) 0;
  font-family: var(--font-sans);
  font-size: 15px;
  display: block;
  overflow-x: auto; /* FIX #1: Table scroll instead of overflow */
}

.post-content thead { background: var(--bg-tertiary); }
.post-content th, .post-content td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-primary);
  white-space: nowrap;
}
.post-content th { font-weight: 600; color: var(--text-primary); }

/* ==========================================================================
   Code Blocks — FIX #3: One header only; FIX #7: Expand button
   ========================================================================== */

.post-content code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  background: var(--bg-code);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  color: var(--text-code);
}

/* Neutralize any existing Pygments wrapper header pollution */
.codehilite { position: relative; }
.codehilite > .code-block { margin: 0; border: none; }

.code-block {
  position: relative;
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-code);
  border: 1px solid var(--border-primary);
}

/* FIX #3: Single unified header per code block */
.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--bg-code-header);
  border-bottom: 1px solid var(--border-primary);
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-tertiary);
}

.code-block__lang {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent);
}

.code-block__actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-block__copy,
.code-block__expand {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 12px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.code-block__copy:hover,
.code-block__expand:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}
.code-block__copy.copied { color: #22c55e; }

.code-block pre {
  margin: 0;
  padding: var(--space-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  tab-size: 2;
}
.code-block pre code { font-family: inherit; font-size: inherit; }

/* Mermaid container — FIX #3: header with expand */
.mermaid-container {
  margin: var(--space-xl) 0;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-primary);
  overflow: hidden;
}

.mermaid-container__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--bg-code-header);
  border-bottom: 1px solid var(--border-primary);
  font-family: var(--font-sans);
  font-size: 12px;
}

.mermaid-container__label {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent);
}

.mermaid-container__expand {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 12px;
  transition: all var(--transition-fast);
}
.mermaid-container__expand:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.mermaid-container__body {
  padding: var(--space-lg);
  text-align: center;
  overflow-x: auto;
}

.mermaid-container svg { max-width: 100%; height: auto; }

/* ==========================================================================
   FIX #7: Code/Mermaid Fullscreen Modal (with pre-ad)
   ========================================================================== */

.code-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(6px);
  flex-direction: column;
}

.code-modal-overlay.active {
  display: flex;
}

/* Step 1: Ad gate */
.code-modal__ad-gate {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--space-xl);
  padding: var(--space-xl);
}

.code-modal__ad-gate h3 {
  font-family: var(--font-sans);
  font-size: 18px;
  color: white;
}

.code-modal__ad-box {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  min-width: 300px;
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-primary);
}

.code-modal__skip-btn {
  padding: 10px 28px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.code-modal__skip-btn:hover { background: var(--accent-hover); }
.code-modal__skip-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Step 2: Code/Mermaid content */
.code-modal__content {
  display: none;
  flex-direction: column;
  width: 100%;
  height: 100%;
}

.code-modal__content.active {
  display: flex;
}

.code-modal__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--bg-code-header);
  flex-shrink: 0;
}

.code-modal__title {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.code-modal__close {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.code-modal__close:hover {
  background: #ef4444;
  color: white;
}

.code-modal__body {
  flex: 1;
  overflow: auto;
  padding: var(--space-xl);
  background: var(--bg-code);
}

.code-modal__body pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-code);
  white-space: pre;
}

.code-modal__body .mermaid {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

/* ==========================================================================
   KaTeX Math
   ========================================================================== */

.katex-display {
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  overflow-x: auto;
}

.katex { font-size: 1.1em; }

/* ==========================================================================
   Social Share
   ========================================================================== */

.share-sidebar {
  position: fixed;
  left: max(20px, calc(50% - var(--content-width)/2 - 72px));
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  z-index: 100;
}

.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  background: var(--bg-primary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.share-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: scale(1.1);
}

.share-btn svg { width: 18px; height: 18px; fill: currentColor; }

.share-btn__count {
  position: absolute;
  top: -6px;
  right: -6px;
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  background: var(--accent);
  color: white;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  min-width: 18px;
  text-align: center;
}

/* Mobile bottom bar */
.share-bottom {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-primary);
  padding: var(--space-sm) var(--space-lg);
  z-index: 100;
  justify-content: space-around;
}
.share-bottom .share-btn { width: 40px; height: 40px; border: none; }

/* ==========================================================================
   Post Tags, Nav, Related
   ========================================================================== */

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-2xl) var(--space-xl);
  max-width: var(--content-width);
  margin: 0 auto;
}

.post-tags a {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 14px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}
.post-tags a:hover { background: var(--accent-subtle); color: var(--accent); }

.related-posts {
  max-width: var(--wide-width);
  margin: var(--space-3xl) auto;
  padding: var(--space-2xl) var(--space-xl);
  border-top: 1px solid var(--border-primary);
}

.related-posts__title {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-xl);
}

.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.related-card { display: flex; flex-direction: column; gap: var(--space-sm); }
.related-card__image { border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 16/10; }
.related-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-base); }
.related-card:hover .related-card__image img { transform: scale(1.05); }
.related-card__title { font-family: var(--font-sans); font-size: 16px; font-weight: 700; line-height: 1.3; color: var(--text-primary); }
.related-card__title a { color: inherit; }
.related-card__title a:hover { color: var(--accent); }
.related-card__meta { font-family: var(--font-sans); font-size: 13px; color: var(--text-tertiary); }

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
  border-top: 1px solid var(--border-primary);
}

.post-nav__item { display: flex; flex-direction: column; gap: var(--space-xs); }
.post-nav__item--next { text-align: right; }
.post-nav__label { font-family: var(--font-sans); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-tertiary); }
.post-nav__title { font-family: var(--font-sans); font-size: 15px; font-weight: 600; color: var(--text-primary); line-height: 1.3; }
.post-nav__title a { color: inherit; }
.post-nav__title a:hover { color: var(--accent); }

/* ==========================================================================
   FIX #9: Ad Slots — All Google Ad formats + positions
   ========================================================================== */

.ad-slot {
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.ad-slot--in-feed {
  margin: var(--space-xl) auto;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-primary);
  min-height: 90px;
  max-width: var(--content-width);
}

.ad-slot--in-article {
  margin: var(--space-2xl) auto;
  max-width: var(--content-width);
  padding: 0 var(--space-xl);
  min-height: 280px;
  flex-direction: column;
  gap: var(--space-sm);
}

.ad-slot--banner {
  min-height: 90px;
  width: 100%;
  background: var(--bg-secondary);
}

.ad-slot--sidebar {
  position: sticky;
  top: calc(var(--header-height) + 20px);
  min-height: 600px;
}

.ad-slot__label {
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

/* Floating Ad — FIX: close btn visible */
.floating-ad {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-xl);
  z-index: 500;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg);
  max-width: 340px;
  animation: slideUp 0.4s ease;
}

.floating-ad__close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-full);
  background: var(--bg-primary);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  transition: all var(--transition-fast);
}

.floating-ad__close:hover {
  background: #ef4444;
  border-color: #ef4444;
  color: white;
}

.floating-ad.hidden { display: none; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Ads Settings Panel (Theme Customizer section in admin)
   ========================================================================== */

.ad-location-preview {
  display: inline-block;
  padding: 2px 8px;
  background: var(--accent-subtle);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-sans);
  font-weight: 600;
}

/* ==========================================================================
   Archive Header, Pagination, Footer
   ========================================================================== */

.archive-header {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
}
.archive-header__label {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}
.archive-header__title {
  font-family: var(--font-sans);
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.archive-header__desc { font-size: 18px; color: var(--text-secondary); margin-top: var(--space-sm); }

.pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-2xl) 0;
  flex-wrap: wrap;
}
.pagination a, .pagination span {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}
.pagination a { color: var(--text-secondary); background: var(--bg-secondary); }
.pagination a:hover { background: var(--accent-subtle); color: var(--accent); }
.pagination .current { background: var(--accent); color: white; }

.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
  padding: var(--space-2xl) var(--space-xl);
  transition: background-color var(--transition-base);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.footer-copy { font-family: var(--font-sans); font-size: 14px; color: var(--text-tertiary); }
.footer-nav, .footer-nav .footer-menu-list { display: flex; gap: var(--space-lg); flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.footer-nav .footer-menu-list li { margin: 0; }
.footer-nav a { font-family: var(--font-sans); font-size: 14px; color: var(--text-tertiary); display: block; }
.footer-nav a:hover, .footer-nav .current-menu-item > a { color: var(--accent); }

/* 404 */
.page-404 {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.page-404__code { font-family: var(--font-sans); font-size: 120px; font-weight: 800; color: var(--bg-tertiary); line-height: 1; }
.page-404__title { font-family: var(--font-sans); font-size: 24px; font-weight: 700; color: var(--text-primary); margin: var(--space-lg) 0 var(--space-md); }
.page-404__text { color: var(--text-secondary); margin-bottom: var(--space-xl); }
.page-404 .search-form { max-width: 400px; width: 100%; }
.page-404 .search-form input[type="search"] {
  width: 100%;
  padding: 12px 20px;
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-full);
  font-size: 16px;
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}
.page-404 .search-form input[type="search"]:focus { border-color: var(--accent); }

/* Comments */
.comments-section {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
  border-top: 1px solid var(--border-primary);
}
.comments-section h2 { font-family: var(--font-sans); font-size: 20px; font-weight: 700; margin-bottom: var(--space-xl); }
.comment-list { list-style: none; padding: 0; }
.comment-body { padding: var(--space-lg) 0; border-bottom: 1px solid var(--border-secondary); }
.comment-meta { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-sm); }
.comment-author img { border-radius: var(--radius-full); width: 36px; height: 36px; }
.comment-author .fn { font-family: var(--font-sans); font-size: 14px; font-weight: 600; color: var(--text-primary); }
.comment-metadata time { font-family: var(--font-sans); font-size: 13px; color: var(--text-tertiary); }
.comment-content p { font-size: 16px; line-height: 1.6; }
.comment-respond { margin-top: var(--space-xl); }
.comment-form textarea,
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"] {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 15px;
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
  margin-bottom: var(--space-md);
}
.comment-form textarea:focus,
.comment-form input:focus { border-color: var(--accent); }
.comment-form .submit {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.comment-form .submit:hover { background: var(--accent-hover); }

.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1250px) {
  .share-sidebar { display: none; }
  .share-bottom { display: flex; }
}

@media (max-width: 1024px) {
  .related-posts__grid { grid-template-columns: repeat(2, 1fr); }
  .scroll-nav { right: var(--space-md); bottom: 70px; }
  .tile-row { height: 170px; }
}

@media (max-width: 768px) {
  body { font-size: 17px; }

  .header-inner {
    padding: 0 var(--space-md);
    height: 56px;
    gap: var(--space-sm);
  }

  .hamburger-menu { display: flex !important; }

  /* Mobile nav: flex-wrap approach — nav sits below header bar and PUSHES content down */
  .header-inner { flex-wrap: wrap; }

  .primary-nav {
    /* Remove absolute — sit in normal document flow */
    position: static;
    order: 10;
    flex-basis: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.3s ease;
    border-top: none;

    /* ── Glassmorphism background ── */
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  }

  /* Dark mode glass */
  [data-theme="dark"] .primary-nav {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  }

  .primary-nav.active {
    max-height: 400px;
    padding: 8px 0 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.25);
  }

  [data-theme="dark"] .primary-nav.active {
    border-top: 1px solid rgba(255, 255, 255, 0.07);
  }
  .primary-nav a {
    width: 100%;
    padding: 10px var(--space-md);
    font-size: 18px;
    border-radius: var(--radius-sm);
  }

  /* Compact rows on mobile */
  .tile-feed { gap: 8px; }
  .tile-row  { height: 150px; gap: 8px; }

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

  .post-content,
  .single-post__header,
  .post-tags,
  .post-nav { padding-left: var(--space-md); padding-right: var(--space-md); }

  .single-post__featured-image { padding: 0 var(--space-md); }

  .single-post__title { font-size: 28px; }
  .post-content p, .post-content li { font-size: 17px; }
  .post-content h2 { font-size: 22px; }
  .post-content h3 { font-size: 19px; }

  .post-card {
    grid-template-columns: 1fr;
  }
  .post-card__image {
    width: 100%;
    aspect-ratio: 16/9;
  }

  .post-card.hero { grid-template-columns: 1fr; }
  .post-card.hero .post-card__image { order: -1; }
  .post-card.hero .post-card__content { order: 2; }

  .related-posts__grid { grid-template-columns: 1fr; }
  .related-posts { padding: var(--space-xl) var(--space-md); }

  .post-nav { grid-template-columns: 1fr; padding: var(--space-xl) var(--space-md); }
  .post-nav__item--next { text-align: left; }

  .footer-inner { flex-direction: column; text-align: center; }

  .floating-ad {
    right: var(--space-md);
    bottom: 60px;
    max-width: calc(100vw - 32px);
  }

  .code-modal__body pre { font-size: 13px; }

  .scroll-nav { display: none; }
}

/* ==========================================================================
   Preferences Dropdown Menu
   ========================================================================== */

.prefs-menu-container {
  position: relative;
  display: inline-block;
}

.prefs-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-xs);
  width: 220px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.prefs-dropdown__title {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-primary);
  padding-bottom: var(--space-xs);
  margin-bottom: var(--space-xs);
}

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

.prefs-item__label {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Custom switch toggle button */
.prefs-switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-primary);
  cursor: pointer;
  outline: none;
  padding: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.prefs-switch.active {
  background: var(--accent);
  border-color: var(--accent);
}

.prefs-switch__slider {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.prefs-switch.active .prefs-switch__slider {
  transform: translateX(18px);
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumbs {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.breadcrumbs a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--accent);
}

.breadcrumbs__separator {
  color: var(--text-tertiary);
  user-select: none;
}

.breadcrumbs__current {
  color: var(--text-tertiary);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================================================
   Print
   ========================================================================== */

@media print {
  .site-header, .reading-progress, .share-sidebar, .share-bottom,
  .floating-ad, .ad-slot, .post-nav, .related-posts, .comments-section,
  .site-footer, .code-block__header, .scroll-nav, .code-modal-overlay { display: none !important; }
  body { font-size: 12pt; color: #000; background: #fff; }
  .post-content { max-width: 100%; padding: 0; }
  a { color: #000; text-decoration: underline; }
  .code-block { border: 1px solid #ccc; }
}