/* ==========================================================================
   Base CSS with CSS Variables
   A clean, readable design focused on content
   ========================================================================== */

/* ==========================================================================
   CSS Custom Properties (Variables)
   ========================================================================== */

:root {
  /* Colors */
  --color-text: #2c2c2c;
  --color-text-secondary: #5a5a5a;
  --color-text-muted: #888888;
  --color-background: #fefefe;
  --color-background-secondary: #f8f8f8;
  --color-border: #e0e0e0;
  --color-link: #1a5276;
  --color-link-hover: #0d3a5c;
  --color-link-visited: #5b3a6e;
  --color-accent: #c0392b;
  --color-code-background: #f5f5f5;
  --color-code-border: #e8e8e8;
  --color-code-text: #333333;

  /* Typography - Book-like serif font */
  --font-serif: "Crimson Pro", "Libre Baskerville", Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", Consolas, Monaco, "Courier New", monospace;

  /* Typography Scale (based on 1.25 ratio - Major Third) */
  --font-size-base: 1.125rem; /* 18px - slightly larger for readability */
  --font-size-sm: 0.889rem;   /* 14.2px */
  --font-size-xs: 0.711rem;   /* 11.4px */
  --font-size-lg: 1.375rem;   /* 22px */
  --font-size-xl: 1.75rem;    /* 28px */
  --font-size-2xl: 2.25rem;   /* 36px */
  --font-size-3xl: 3rem;      /* 48px */
  --font-size-h1: 2.441rem;   /* 39px */
  --font-size-h2: 1.953rem;   /* 31px */
  --font-size-h3: 1.563rem;   /* 25px */
  --font-size-h4: 1.25rem;    /* 20px */
  --font-size-h5: 1rem;       /* 16px */
  --font-size-h6: 0.889rem;   /* 14.2px */

  /* Line Height - Comfortable reading */
  --line-height-base: 1.6;
  --line-height-heading: 1.3;
  --line-height-tight: 1.2;

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

  /* Content Width - Readable line length (60-75 characters) */
  --content-width: 65ch;
  --content-width-wide: 80ch;
  --content-width-max: 1200px;

  /* Borders */
  --border-radius: 4px;
  --border-width: 1px;
}

/* ==========================================================================
   Base Reset & Box Sizing
   ========================================================================== */

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ==========================================================================
   Typography - Headings
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: var(--line-height-heading);
  color: var(--color-text);
  /* Offset scroll target for sticky header */
  scroll-margin-top: calc(60px + var(--spacing-lg));
}

h1 {
  font-size: var(--font-size-h1);
  margin-top: 0;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-h2);
  letter-spacing: -0.01em;
}

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

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

h5 {
  font-size: var(--font-size-h5);
  font-weight: 700;
}

h6 {
  font-size: var(--font-size-h6);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Header anchor links */
.header-anchor {
  color: var(--color-text-muted);
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.15s ease-in-out;
  margin-left: var(--spacing-xs);
}

.header-anchor:hover {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.header-anchor:visited {
  color: var(--color-text-muted);
}

h1:hover .header-anchor,
h2:hover .header-anchor,
h3:hover .header-anchor,
h4:hover .header-anchor,
h5:hover .header-anchor,
h6:hover .header-anchor {
  opacity: 1;
}

/* ==========================================================================
   Typography - Body Text
   ========================================================================== */

p {
  margin-top: 0;
  margin-bottom: var(--spacing-lg);
  max-width: var(--content-width);
}

/* First paragraph after heading - no extra spacing needed */
h1 + p,
h2 + p,
h3 + p,
h4 + p,
h5 + p,
h6 + p {
  margin-top: 0;
}

/* Lead paragraph styling */
.lead {
  font-size: 1.25em;
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

/* Small text */
small,
.small {
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   Typography - Links
   ========================================================================== */

a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.15s ease-in-out;
}

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

a:visited {
  color: var(--color-text-secondary);
}

a:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* ==========================================================================
   Typography - Lists
   ========================================================================== */

ul, ol {
  margin-top: 0;
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
  max-width: var(--content-width);
}

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

li > ul,
li > ol {
  margin-top: var(--spacing-sm);
  margin-bottom: 0;
}

/* ==========================================================================
   Typography - Blockquotes
   ========================================================================== */

blockquote {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-background-secondary);
  font-style: italic;
  color: var(--color-text-secondary);
  max-width: var(--content-width);
}

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

blockquote cite {
  display: block;
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  font-style: normal;
  color: var(--color-text-muted);
}

blockquote cite::before {
  content: "\2014\00a0"; /* em-dash followed by non-breaking space */
}

/* ==========================================================================
   Code Blocks
   ========================================================================== */

code,
kbd,
samp {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* Inline code */
:not(pre) > code {
  padding: 0.15em 0.4em;
  background-color: var(--color-code-background);
  border: var(--border-width) solid var(--color-code-border);
  border-radius: var(--border-radius);
  color: var(--color-code-text);
  word-wrap: break-word;
}

/* Code blocks */
pre {
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg);
  background-color: var(--color-code-background);
  border: var(--border-width) solid var(--color-code-border);
  border-radius: var(--border-radius);
  overflow-x: auto;
  font-size: var(--font-size-sm);
  line-height: 1.5;
  max-width: 100%;
}

pre code {
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  font-size: inherit;
}

/* Keyboard input */
kbd {
  padding: 0.15em 0.4em;
  background-color: var(--color-background-secondary);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: 0 1px 0 var(--color-border);
}

/* ==========================================================================
   Other Elements
   ========================================================================== */

hr {
  margin: var(--spacing-2xl) 0;
  border: 0;
  border-top: var(--border-width) solid var(--color-border);
  max-width: var(--content-width);
}

figure {
  margin: var(--spacing-xl) 0;
}

figcaption {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-style: italic;
}

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

abbr[title] {
  text-decoration: underline dotted;
  cursor: help;
}

mark {
  padding: 0.1em 0.2em;
  background-color: #fff3cd;
}

/* ==========================================================================
   Tables
   ========================================================================== */

table {
  width: 100%;
  max-width: var(--content-width);
  margin-bottom: var(--spacing-xl);
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

th, td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: var(--border-width) solid var(--color-border);
}

th {
  font-weight: 600;
  background-color: var(--color-background-secondary);
}

/* ==========================================================================
   Layout - Site Structure
   ========================================================================== */

.page-wrapper {
  max-width: var(--content-width-max);
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: var(--border-width) solid var(--color-border);
  background-color: var(--color-background);
}

/* Sticky header behavior - hidden by default, slides in when post title leaves viewport */
.site-header--sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transform: translateY(-100%);
  transition: transform 0.3s ease-in-out;
}

.site-header--sticky.site-header--visible {
  transform: translateY(0);
}

/* Add padding to main content when sticky header is active to prevent content jump */
body:has(.site-header--sticky) .main-content {
  padding-top: calc(var(--spacing-2xl) + 60px);
}

.site-nav {
  /* Content width handled by .page-wrapper */
}

.site-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  margin: 0;
}

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

.site-title:visited {
  color: var(--color-text);
}

/* Landing page header with larger title and actions button */
.site-header--landing {
  padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
  border-bottom: none;
}

.site-header--landing .site-header__content {
  max-width: var(--content-width);
}

.site-header--landing .site-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.site-header--landing .site-header__row {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.site-header--landing .site-subtitle {
  font-family: var(--font-serif);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
}

.site-header--landing .site-header__actions {
  position: absolute;
  right: 0;
}

.site-header__row {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background-color: var(--color-background-secondary);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color 0.15s ease-out, color 0.15s ease-out;
  white-space: nowrap;
  flex-shrink: 0;
}

.site-header__actions:hover {
  background-color: var(--color-border);
  color: var(--color-text);
}

.site-header__actions svg {
  flex-shrink: 0;
}

.site-header__actions-label {
  font-weight: 500;
  display: none;
}

.site-header__actions-shortcut {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  background-color: var(--color-background);
  padding: 2px 6px;
  border-radius: 3px;
  border: var(--border-width) solid var(--color-border);
  display: none;
}

/* Show label and shortcut on larger screens */
@media (min-width: 600px) {
  .site-header__actions-label {
    display: inline;
  }

  .site-header__actions-shortcut {
    display: inline;
  }
}

.main-content {
  flex: 1;
  padding: var(--spacing-2xl) var(--spacing-xl);
}

.site-footer {
  padding: var(--spacing-xl);
  border-top: var(--border-width) solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.site-footer p {
  margin: 0;
  max-width: none;
}

/* ==========================================================================
   Post Styles
   ========================================================================== */

.post {
  max-width: var(--content-width);
}

.post-header {
  margin-bottom: var(--spacing-3xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 2px solid var(--color-border);
  text-align: center;
}

.post-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
}

.post-abstract {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 65ch;
  margin-left: auto;
  margin-right: auto;
  font-style: italic;
}

.post-meta-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-family: var(--font-sans);
}

.post-date {
  font-style: normal;
  color: var(--color-text-muted);
}

.post-reading-time {
  color: var(--color-text-muted);
}

.post-mood {
  color: var(--color-text-muted);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.post-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-link);
  background-color: var(--color-background-secondary);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: all 0.2s ease;
}

.post-tag:hover {
  color: var(--color-link-hover);
  background-color: var(--color-code-background);
  border-color: var(--color-link);
}

.post-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.post-content {
  max-width: var(--content-width);
}

/* ==========================================================================
   Sidenotes (Tufte-style margin notes)
   ========================================================================== */

/* Hide the checkbox toggle - it's only used for CSS state */
.sidenote-toggle {
  display: none;
}

/* Sidenote number - clickable label that toggles visibility on mobile */
label.sidenote-number {
  display: inline-block;
  max-height: 2rem;
  font-size: 0.75em;
  vertical-align: super;
  line-height: 0;
  cursor: pointer;
  color: var(--color-link);
  font-weight: 600;
  padding: 0 0.1em;
}

label.sidenote-number:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

/* The sidenote content - hidden by default on mobile */
.sidenote {
  display: none;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-base);
  color: var(--color-text-secondary);
  background-color: var(--color-background-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-sm) 0;
  border-left: 2px solid var(--color-border);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* Desktop: sidenotes visible by default, positioned in margin */
@media (min-width: 1201px) {
  .sidenote {
    display: inline;
    float: right;
    clear: right;
    width: 250px;
    margin: 0;
    margin-right: -280px;
    padding: 0;
    background-color: transparent;
    border-left: none;
    border-radius: 0;
    vertical-align: baseline;
    position: relative;
  }

  /* Hide redundant number in sidenote on desktop */
  .sidenote > .sidenote-number {
    display: none;
  }
}

/* Sidenote number inside the aside (for margin display) */
.sidenote > .sidenote-number {
  display: inline;
  font-size: 0.85em;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-right: var(--spacing-xs);
}

/* Mobile: Show sidenote when checkbox is checked */
.sidenote-toggle:checked + label.sidenote-number + .sidenote {
  display: block;
  float: left;
  clear: both;
  width: 95%;
  margin: var(--spacing-sm) 2.5%;
  padding: var(--spacing-sm) var(--spacing-md);
}

/* Indicate expanded state on mobile */
.sidenote-toggle:checked + label.sidenote-number {
  color: var(--color-accent);
}

/* ==========================================================================
   Sidenotes - Wide screen layout (>1200px)
   On wide screens, sidenotes float in the right margin
   ========================================================================== */

@media (min-width: 1201px) {
  /* Hide the clickable label on desktop - sidenotes are always visible */
  label.sidenote-number {
    cursor: default;
    color: var(--color-text-muted);
  }

  label.sidenote-number:hover {
    color: var(--color-text-muted);
    text-decoration: none;
  }
}

.margin-column {
  /* Reserved space for sidenotes on wide screens */
  display: none;
}

@media (min-width: 1201px) {
  .margin-column {
    display: block;
  }
}

/* ==========================================================================
   Posts List (Index Page)
   ========================================================================== */

.posts-list {
  max-width: var(--content-width);
}

.page-title {
  margin-bottom: var(--spacing-2xl);
}

.post-entries {
  list-style: none;
  padding-left: 0;
}

.post-entry {
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: var(--border-width) solid var(--color-border);
}

.post-entry:last-child {
  border-bottom: none;
}

.post-entry-title {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-h3);
}

.post-entry-title a {
  color: var(--color-text);
  text-decoration: none;
}

.post-entry-title a:hover {
  color: var(--color-link);
  text-decoration: underline;
}

.post-entry-title a:visited {
  color: var(--color-text);
}

.post-entry-date {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--spacing-sm);
}

.post-entry-description {
  margin-bottom: 0;
  color: var(--color-text-secondary);
}

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

@media (max-width: 768px) {
  :root {
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
    --font-size-h1: 2rem;
    --font-size-h2: 1.625rem;
    --font-size-h3: 1.375rem;
    --font-size-h4: 1.125rem;
  }

  .site-header,
  .main-content,
  .site-footer {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }

  pre {
    padding: var(--spacing-md);
    margin-left: calc(-1 * var(--spacing-md));
    margin-right: calc(-1 * var(--spacing-md));
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
}

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

/* ==========================================================================
   Post Header Bar (shared styles for static + sticky bars)
   ========================================================================== */

/* Home button - shared between both bars */
.post-header-bar__home {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: var(--border-width) solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: background-color 0.15s ease-in-out, color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.post-header-bar__home:hover {
  background-color: var(--color-background-secondary);
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.post-header-bar__home:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Actions button - shared between both bars */
.post-header-bar__actions {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  height: 36px;
  padding: 0 var(--spacing-sm);
  border: var(--border-width) solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--border-radius);
  transition: background-color 0.15s ease-in-out, color 0.15s ease-in-out, border-color 0.15s ease-in-out;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
}

.post-header-bar__actions:hover {
  background-color: var(--color-background-secondary);
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.post-header-bar__actions:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.post-header-bar__actions-label {
  display: none;
}

.post-header-bar__actions-shortcut {
  display: none;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  background-color: var(--color-background-secondary);
  padding: 2px 6px;
  border-radius: 3px;
  border: var(--border-width) solid var(--color-border);
}

/* Show label and shortcut on larger screens */
@media (min-width: 600px) {
  .post-header-bar__actions {
    padding: 0 var(--spacing-md);
  }

  .post-header-bar__actions-label {
    display: inline;
  }

  .post-header-bar__actions-shortcut {
    display: inline;
  }
}

/* ==========================================================================
   Post Header Bar - Static (in-flow at top of post)
   ========================================================================== */

.post-header-bar {
  display: flex;
  align-items: center;
  height: 60px;
  max-width: var(--content-width-max);
  padding: 0;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border-bottom: var(--border-width) solid var(--color-border);
}

.post-header-bar__title {
  flex: 1;
  min-width: 0;
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  line-height: var(--line-height-tight);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-header-bar__info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.post-header-bar__reading-time {
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Post Sticky Header (fixed, slides in when post-header-bar leaves viewport)
   ========================================================================== */

.post-sticky-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: var(--border-width) solid var(--color-border);
  /* Slide animation - hidden by default, slides down when visible */
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 250ms ease-out, opacity 200ms ease-out;
  will-change: transform, opacity;
}

/* Header visible state - slides down into view */
.post-sticky-header--visible {
  transform: translateY(0);
  opacity: 1;
}

.post-sticky-header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--content-width-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  gap: var(--spacing-md);
}

.post-sticky-header__title {
  flex: 1;
  min-width: 0;
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  line-height: var(--line-height-tight);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-sticky-header__info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.post-sticky-header__separator {
  color: var(--color-text-muted);
}

.post-sticky-header__progress {
  min-width: 3ch;
  text-align: right;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .post-sticky-header__content {
    padding: 0 var(--spacing-md);
  }

  .post-sticky-header__title,
  .post-header-bar__title {
    font-size: var(--font-size-sm);
  }

  .post-sticky-header__info,
  .post-header-bar__info {
    font-size: var(--font-size-xs);
  }

  .post-header-bar__actions,
  .post-header-bar__home {
    height: 32px;
    width: auto;
    min-width: 32px;
    padding: 0 var(--spacing-sm);
  }

  .post-header-bar {
    padding: 0;
    gap: var(--spacing-sm);
  }
}

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

.reading-progress-bar {
  position: fixed;
  top: 60px; /* Position below the sticky header */
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--color-accent);
  z-index: 1000;
  transition: width 0.1s ease-out;
}

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

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.hidden {
  display: none !important;
}

/* ==========================================================================
   Site Tagline
   ========================================================================== */

.site-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
  margin-top: var(--spacing-xs);
}

.site-subtitle {
  font-family: var(--font-serif);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
  margin-top: var(--spacing-xs);
}

/* ==========================================================================
   Landing Page - Actions Bar (with glassmorphism)
   ========================================================================== */

.landing-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  background-color: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  position: sticky;
  top: var(--spacing-md);
  z-index: 50;
}

.landing-actions-bar__left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.landing-actions-bar__right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* ==========================================================================
   Landing Page - Tag Dropdown Filter
   ========================================================================== */

.landing-tag-dropdown {
  position: relative;
  display: inline-block;
}

.landing-tag-dropdown__trigger {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background-color: var(--color-background);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.15s ease-in-out;
}

.landing-tag-dropdown__trigger:hover {
  background-color: var(--color-background-secondary);
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.landing-tag-dropdown__trigger:focus {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

.landing-tag-dropdown__icon {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease-in-out;
}

.landing-tag-dropdown--open .landing-tag-dropdown__icon {
  transform: rotate(180deg);
}

.landing-tag-dropdown__menu {
  position: absolute;
  top: calc(100% + var(--spacing-xs));
  left: 0;
  min-width: 200px;
  max-height: 300px;
  overflow-y: auto;
  background-color: var(--color-background);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease-in-out;
}

.landing-tag-dropdown--open .landing-tag-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.landing-tag-dropdown__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.15s ease-in-out;
}

.landing-tag-dropdown__item:hover {
  background-color: var(--color-background-secondary);
}

.landing-tag-dropdown__checkbox {
  width: 16px;
  height: 16px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--color-link);
}

.landing-tag-dropdown__item-label {
  flex: 1;
}

.landing-tag-dropdown__item-count {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.landing-tag-dropdown__clear {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  border-top: var(--border-width) solid var(--color-border);
  text-align: center;
  cursor: pointer;
  transition: background-color 0.15s ease-in-out, color 0.15s ease-in-out;
}

.landing-tag-dropdown__clear:hover {
  background-color: var(--color-background-secondary);
  color: var(--color-text);
}

/* ==========================================================================
   Landing Page - Filter Active Indicator
   ========================================================================== */

.landing-filter-active {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-link);
  background-color: rgba(26, 82, 118, 0.1);
  border-radius: var(--border-radius);
}

.landing-filter-active__label {
  color: var(--color-text-secondary);
}

.landing-filter-active__value {
  font-weight: 600;
}

.landing-filter-active__clear {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: 50%;
  transition: all 0.15s ease-in-out;
}

.landing-filter-active__clear:hover {
  background-color: var(--color-background-secondary);
  color: var(--color-text);
}

/* ==========================================================================
   Landing Page - Featured Post (Hero Card)
   ========================================================================== */

.landing-featured-post {
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-2xl);
  background-color: var(--color-background-secondary);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
}

.landing-featured-post__label {
  display: inline-block;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  background-color: rgba(192, 57, 43, 0.1);
  border-radius: var(--border-radius);
}

.landing-featured-post__title {
  margin: 0;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-serif);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
}

.landing-featured-post__title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.15s ease-in-out;
}

.landing-featured-post__title a:hover {
  color: var(--color-link);
}

.landing-featured-post__title a:visited {
  color: var(--color-text);
}

.landing-featured-post__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.landing-featured-post__date {
  font-style: italic;
}

.landing-featured-post__reading-time {
  color: var(--color-text-muted);
}

.landing-featured-post__description {
  margin: 0;
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
  max-width: var(--content-width);
}

.landing-featured-post__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

/* ==========================================================================
   Landing Page - Posts List
   ========================================================================== */

.landing-posts-list {
  max-width: var(--content-width);
}

/* Year separator for posts list */
.year-separator {
  margin: var(--spacing-xl) 0 var(--spacing-lg) 0;
  padding-bottom: var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 2px solid var(--color-border);
}

.year-separator:first-child {
  margin-top: 0;
}

/* Post item styling */
.post-item {
  padding: var(--spacing-lg) 0;
  border-bottom: var(--border-width) solid var(--color-border);
}

.post-item:last-child {
  border-bottom: none;
}

.post-item-title {
  margin: 0 0 var(--spacing-xs) 0;
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  font-weight: 600;
  line-height: var(--line-height-heading);
}

.post-item-title a {
  color: var(--color-text);
}

.post-item-title a:hover {
  color: var(--color-text-secondary);
}

.post-item-description {
  margin: 0 0 var(--spacing-sm) 0;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

.post-item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.post-item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-left: var(--spacing-sm);
}

.landing-posts-list__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
}

.landing-posts-list__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--font-size-h4);
  font-weight: 600;
  color: var(--color-text);
}

.landing-posts-list__count {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ==========================================================================
   Landing Page - Post Item
   ========================================================================== */

.landing-post-item {
  padding: var(--spacing-lg) 0;
  border-bottom: var(--border-width) solid var(--color-border);
}

.landing-post-item:first-child {
  padding-top: 0;
}

.landing-post-item:last-child {
  border-bottom: none;
}

.landing-post-item__title {
  margin: 0;
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-serif);
  font-size: var(--font-size-h3);
  font-weight: 600;
  line-height: var(--line-height-heading);
}

.landing-post-item__title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.15s ease-in-out;
}

.landing-post-item__title a:hover {
  color: var(--color-link);
}

.landing-post-item__title a:visited {
  color: var(--color-text);
}

.landing-post-item__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.landing-post-item__date {
  font-style: italic;
}

.landing-post-item__separator {
  color: var(--color-border);
}

.landing-post-item__reading-time {
  color: var(--color-text-muted);
}

.landing-post-item__description {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

.landing-post-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.landing-post-item__tag {
  display: inline-block;
  padding: 2px var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  background-color: var(--color-background-secondary);
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: all 0.15s ease-in-out;
}

.landing-post-item__tag:hover {
  color: var(--color-link);
  background-color: var(--color-code-background);
}

/* ==========================================================================
   Landing Page - Responsive Breakpoints
   ========================================================================== */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
  .landing-featured-post {
    padding: var(--spacing-xl);
  }

  .landing-featured-post__title {
    font-size: var(--font-size-2xl);
  }

  .landing-featured-post__description {
    font-size: var(--font-size-base);
  }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
  .landing-actions-bar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    position: static;
  }

  .landing-actions-bar__left,
  .landing-actions-bar__right {
    justify-content: center;
  }

  .landing-featured-post {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
  }

  .landing-featured-post__title {
    font-size: var(--font-size-xl);
  }

  .landing-featured-post__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .landing-post-item {
    padding: var(--spacing-md) 0;
  }

  .landing-post-item__title {
    font-size: var(--font-size-h4);
  }

  .landing-post-item__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .landing-post-item__separator {
    display: none;
  }

  .landing-tag-dropdown__menu {
    left: auto;
    right: 0;
  }

  .site-tagline {
    font-size: var(--font-size-sm);
  }
}

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

@media print {
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }

  .site-header,
  .site-header--sticky,
  .post-sticky-header,
  .post-header-bar,
  .site-footer,
  .reading-progress-bar,
  .landing-actions-bar {
    display: none;
  }

  /* Remove body padding in print */
  body:has(.post-sticky-header) {
    padding-top: 0;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }

  pre, blockquote {
    page-break-inside: avoid;
  }

  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }

  /* Sidenotes in print: show inline as footnotes */
  .sidenote-toggle {
    display: none;
  }

  label.sidenote-number {
    color: #000;
    font-weight: bold;
  }

  .sidenote {
    display: block;
    float: none;
    width: auto;
    margin: 0.5em 0 0.5em 2em;
    padding: 0.5em;
    font-size: 0.9em;
    background-color: #f5f5f5;
    border-left: 2px solid #ccc;
  }
}

/* ==========================================================================
   Responsive Design - Mobile First Enhancements (US-012)
   ========================================================================== */

/* Prevent horizontal scrolling on all screen sizes */
html,
body {
  overflow-x: hidden;
  max-width: 100vw;
}

/* Ensure all content respects viewport width */
.main-content,
.site-header,
.site-footer {
  max-width: 100%;
}

/* ==========================================================================
   Touch Target Accessibility (min 44x44px per WCAG 2.1)
   ========================================================================== */

/* Base touch target size for interactive elements */
.landing-tag-dropdown__trigger,
.landing-tag-dropdown__item,
.landing-filter-active__clear,
.post-header-bar__actions,
.post-header-bar__home {
  min-height: 44px;
}

.landing-tag-dropdown__trigger {
  min-width: 44px;
}

.landing-filter-active__clear {
  min-width: 44px;
  width: 44px;
  height: 44px;
}

/* Post tag links need adequate touch targets */
.post-tag,
.landing-post-item__tag {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
}

/* ==========================================================================
   Landing Actions Bar - Mobile Responsive (icon-only on mobile)
   ========================================================================== */

/* Small screens (< 480px) - Most compact layout */
@media (max-width: 480px) {
  .landing-actions-bar {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    position: sticky;
    top: var(--spacing-sm);
  }

  .landing-actions-bar__left,
  .landing-actions-bar__right {
    flex: 0 0 auto;
  }

  /* Icon-only dropdown trigger on mobile */
  .landing-tag-dropdown__trigger {
    padding: var(--spacing-sm);
    min-width: 44px;
    justify-content: center;
  }

  .landing-tag-dropdown__label {
    /* Hide label, show only icon on very small screens */
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  /* Icon-only search button on mobile */
  .post-header-bar__actions {
    padding: var(--spacing-sm);
    min-width: 44px;
    justify-content: center;
  }

  /* Filter indicator wraps to new line on very small screens */
  .landing-filter-active {
    flex-basis: 100%;
    order: 3;
    justify-content: center;
    margin-top: var(--spacing-xs);
  }
}

/* Medium mobile screens (480px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
  .landing-actions-bar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    position: sticky;
    top: var(--spacing-sm);
  }

  .landing-actions-bar__left,
  .landing-actions-bar__right {
    justify-content: flex-start;
  }

  /* Show abbreviated label on medium mobile */
  .landing-tag-dropdown__label {
    display: inline;
  }
}

/* ==========================================================================
   Tag Dropdown - Touch Device Accessibility
   ========================================================================== */

/* Dropdown menu touch-friendly adjustments */
@media (max-width: 768px) {
  .landing-tag-dropdown__menu {
    /* Full width on mobile for easier touch access */
    position: fixed;
    left: var(--spacing-md);
    right: var(--spacing-md);
    top: auto;
    bottom: var(--spacing-md);
    max-height: 50vh;
    min-width: auto;
    width: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    /* Slide up animation */
    transform: translateY(100%);
    opacity: 0;
    transition: transform 0.25s ease-out, opacity 0.2s ease-out;
  }

  .landing-tag-dropdown--open .landing-tag-dropdown__menu {
    transform: translateY(0);
    opacity: 1;
  }

  /* Larger touch targets for dropdown items */
  .landing-tag-dropdown__item {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    border-bottom: var(--border-width) solid var(--color-border);
  }

  .landing-tag-dropdown__item:last-child {
    border-bottom: none;
  }

  /* Add backdrop overlay when dropdown is open */
  .landing-tag-dropdown--open::before {
    content: "";
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 99;
  }

  .landing-tag-dropdown--open .landing-tag-dropdown__menu {
    z-index: 100;
  }
}

/* ==========================================================================
   Featured Post - Responsive Scaling
   ========================================================================== */

/* Featured post remains prominent but scales appropriately */
@media (max-width: 480px) {
  .landing-featured-post {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    margin-left: calc(-1 * var(--spacing-md));
    margin-right: calc(-1 * var(--spacing-md));
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .landing-featured-post__title {
    font-size: var(--font-size-lg);
    line-height: 1.3;
  }

  .landing-featured-post__label {
    font-size: 0.65rem;
    padding: 3px var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
  }

  .landing-featured-post__description {
    font-size: var(--font-size-sm);
    line-height: 1.5;
  }

  .landing-featured-post__meta {
    font-size: var(--font-size-xs);
    gap: var(--spacing-xs);
  }

  .landing-featured-post__tags {
    margin-top: var(--spacing-md);
  }
}

/* Tablet adjustments for featured post */
@media (min-width: 481px) and (max-width: 768px) {
  .landing-featured-post {
    padding: var(--spacing-lg);
  }

  .landing-featured-post__title {
    font-size: var(--font-size-xl);
  }
}

/* ==========================================================================
   Posts List - Readable on All Screen Sizes
   ========================================================================== */

/* Ensure posts list is readable on small screens */
@media (max-width: 480px) {
  .landing-posts-list {
    margin-left: calc(-1 * var(--spacing-md));
    margin-right: calc(-1 * var(--spacing-md));
    padding: 0 var(--spacing-md);
  }

  .landing-posts-list__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding-bottom: var(--spacing-sm);
  }

  .landing-posts-list__title {
    font-size: var(--font-size-base);
  }

  .landing-posts-list__count {
    font-size: var(--font-size-xs);
  }

  .landing-post-item {
    padding: var(--spacing-md) 0;
  }

  .landing-post-item__title {
    font-size: var(--font-size-base);
    line-height: 1.4;
  }

  .landing-post-item__description {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    /* Limit description to 3 lines on mobile */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .landing-post-item__tags {
    gap: var(--spacing-xs);
  }

  .landing-post-item__tag {
    font-size: 0.7rem;
    padding: 4px var(--spacing-sm);
  }
}

/* ==========================================================================
   Prevent Content Overflow on Mobile
   ========================================================================== */

/* Ensure code blocks don't cause horizontal scroll */
pre {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Ensure images scale properly */
img {
  max-width: 100%;
  height: auto;
}

/* Tables scroll horizontally on mobile */
@media (max-width: 768px) {
  table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Long words/URLs don't break layout */
.post-content,
.landing-post-item__description,
.landing-featured-post__description {
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* ==========================================================================
   Filter Active Indicator - Mobile Responsive
   ========================================================================== */

@media (max-width: 480px) {
  .landing-filter-active {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }

  .landing-filter-active__label {
    display: none;
  }

  .landing-filter-active__count {
    display: none;
  }
}

/* ==========================================================================
   Site Header and Footer - Mobile Responsive
   ========================================================================== */

@media (max-width: 480px) {
  .site-header {
    padding: var(--spacing-md);
    text-align: center;
  }

  .site-title {
    font-size: var(--font-size-h4);
  }

  .site-tagline {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
  }

  .site-footer {
    padding: var(--spacing-md);
    font-size: var(--font-size-xs);
  }

  .main-content {
    padding: var(--spacing-lg) var(--spacing-md);
  }
}

/* ==========================================================================
   Extra Small Screens (< 360px) - Minimal Layout
   ========================================================================== */

@media (max-width: 360px) {
  :root {
    --font-size-base: 0.9375rem; /* 15px */
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
  }

  .landing-actions-bar {
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }

  .landing-featured-post {
    padding: var(--spacing-sm);
  }

  .landing-featured-post__title {
    font-size: var(--font-size-base);
  }

  .landing-post-item__title {
    font-size: var(--font-size-sm);
  }
}