/*
 * Piscosour CSS
 * A typography-focused stylesheet pairing Futura with Crimson Text
 * Inspired by mid-century design principles
 */

/* ==========================================================================
   Base & Typography
   ========================================================================== */

:root {
  /* Color Palette */
  --primary-color: #1a1a1a;
  --secondary-color: #6B6B6B;
  --accent-color: #B84A46;
  --background-color: #FFFFFF;
  --paper-color: #FFFFFF;
  --divider-color: #E0DDD6;
  --link-color: #B84A46;
  --link-hover-color: #8F3935;
  
  /* Typography Scale */
  --font-size-base: 1.05rem;
  --font-size-large: 1.2rem;
  --font-size-small: 0.9rem;
  --line-height-base: 1.6;
  --line-height-tight: 1.3;
  --line-height-loose: 1.8;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  
  /* Layout */
  --max-width-text: 680px;
  --max-width-wide: 800px;
  --max-width-container: 1200px;
}

/* ==========================================================================
   Self-hosted Fonts
   ========================================================================== */

/* Crimson Text */
@font-face {
  font-family: 'Crimson Text';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/crimson-text-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Crimson Text';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/crimson-text-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Crimson Text';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/crimson-text-700.woff2') format('woff2');
}

@font-face {
  font-family: 'Crimson Text';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/crimson-text-italic-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Crimson Text';
  font-style: italic;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/crimson-text-italic-600.woff2') format('woff2');
}

/* IBM Plex Mono */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-400.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-500.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/ibm-plex-mono-600.woff2') format('woff2');
}

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

/* ==========================================================================
   Skip Link (Accessibility)
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-md);
  z-index: 9999;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--accent-color);
  color: white;
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--spacing-sm);
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ==========================================================================
   Links
   ========================================================================== */

/* Reset all links first */
a {
  text-decoration: none;
  border: none;
}

/* ==========================================================================
   Focus States (Accessibility)
   ========================================================================== */

/* Universal focus-visible style for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Remove default focus for mouse users */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Crimson Text', Georgia, serif;
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--primary-color);
  background-color: var(--background-color);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--primary-color);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.8rem; margin-top: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
h2 { font-size: 2rem; margin-top: var(--spacing-xl); margin-bottom: var(--spacing-md); }
h3 { font-size: 1.5rem; margin-top: var(--spacing-lg); }
h4 { font-size: 1.2rem; margin-top: var(--spacing-lg); }
h5 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.05em; }
h6 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--secondary-color); }

/* Text Elements */
p { margin-bottom: var(--spacing-md); }
p + p { text-indent: 1.5em; margin-top: 0; }

.lead {
  font-size: var(--font-size-large);
  line-height: var(--line-height-loose);
  font-style: italic;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-xl);
}

/* Links */
main a {
  color: var(--link-color);
  text-decoration: none;
  border-bottom: 1px solid var(--link-color);
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

/* Quotes */
blockquote {
  margin: var(--spacing-lg) 0;
  padding-left: var(--spacing-lg);
  border-left: 3px solid var(--divider-color);
  font-style: italic;
  color: var(--secondary-color);
}

.pullquote {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: 1.8rem;
  line-height: var(--line-height-tight);
  padding: var(--spacing-lg) var(--spacing-sm);
  margin: var(--spacing-xl) 0;
  text-align: center;
  color: var(--accent-color);
  position: relative;
}

.pullquote::before,
.pullquote::after {
  content: '';
  display: block;
  height: 2px;
  width: 100px;
  background-color: var(--divider-color);
  margin: 0 auto;
}

.pullquote::before { margin-bottom: var(--spacing-lg); }
.pullquote::after { margin-top: var(--spacing-lg); }

/* Layout Containers */
.container {
  max-width: var(--max-width-container);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: var(--max-width-text);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header */
.site-header {
  height: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-lg);
  border-bottom: 1px solid var(--divider-color);
  background-color: var(--paper-color);
  max-width: var(--max-width-container);
  margin: 0 auto;
}

.site-logo {
  font-family: 'IBM Plex Mono', 'Monaco', 'Courier New', monospace;
  font-size: 1.5rem;
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0.05em;
  color: var(--primary-color);
}

.site-logo a {
  color: inherit;
}

.site-nav {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.site-nav a {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary-color);
  border: none;
  border-bottom: none !important;
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: color 0.2s ease;
}

.site-nav a:hover { color: var(--primary-color); }

.site-nav a.active {
  color: var(--primary-color);
  position: relative;
}

.site-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--spacing-sm);
  right: var(--spacing-sm);
  height: 2px;
  background-color: var(--accent-color);
}

/* Article Layout */
.article-header {
  text-align: center;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.article-content {
  max-width: var(--max-width-text);
  margin: 0 auto;
  padding-bottom: var(--spacing-xl);
}

/* Meta Information */
.meta {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary-color);
}

/* Cards */
.card {
  border: 1px solid var(--divider-color);
  background-color: var(--paper-color);
  overflow: hidden;
}

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

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* Responsive */
@media (max-width: 768px) {
  :root {
    --font-size-base: 1.1rem;
  }

  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.6rem; }

  .site-header {
    flex-direction: column;
    height: auto;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .site-nav {
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
  }

  .site-nav a {
    padding: var(--spacing-sm) var(--spacing-sm);
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .site-nav a.active::after {
    left: var(--spacing-sm);
    right: var(--spacing-sm);
  }
}

/* ==========================================================================
   Article Navigation
   ========================================================================== */

.article-navigation {
  max-width: var(--max-width-text);
  margin: var(--spacing-xl) auto 0;
}

.nav-links {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.nav-previous,
.nav-next {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

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

.nav-previous .text-link,
.nav-next .text-link {
  font-size: 1rem;
  text-transform: none;
  letter-spacing: normal;
}

@media (max-width: 768px) {
  .nav-links {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .nav-next {
    align-items: flex-start;
    text-align: left;
  }
}

/* ==========================================================================
   Page Header
   ========================================================================== */

.page-header {
  text-align: center;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.page-header h1 {
  margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Posts List
   ========================================================================== */

.posts-list {
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.post-preview {
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--divider-color);
}

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

.post-preview-title {
  font-size: 2rem;
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

.post-preview-title a {
  color: var(--primary-color);
  border-bottom: none;
  transition: color 0.2s ease;
}

.post-preview-title a:hover {
  color: var(--accent-color);
}

.post-preview-excerpt {
  color: var(--secondary-color);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Article Images
   ========================================================================== */

.article-image-container {
  margin: var(--spacing-xl) 0;
  text-align: center;
}

/* Image wrapper for breakout effect */
.article-image-container a {
  display: block;
  border-bottom: none;
  margin: 0 calc(-1 * var(--spacing-lg)); /* Negative margin to break out of container */
}

.article-image-container a:hover {
  opacity: 0.95;
}

.article-image {
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* Caption styling */
.article-image-container p {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  color: var(--secondary-color);
  margin-top: var(--spacing-sm);
  margin-bottom: 0;
  padding: 0 var(--spacing-lg); /* Add padding back for caption */
  text-indent: 0; /* Override the p+p text-indent */
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .article-image-container a {
    margin: 0 calc(-1 * var(--spacing-md));
  }
  
  .article-image-container p {
    padding: 0 var(--spacing-md);
  }
}

/* ==========================================================================
   Bio
   ========================================================================== */


.bio-text {
  padding: var(--spacing-md);
}

/* Author Bio Card (Post Footer) */
.author-bio {
  max-width: var(--max-width-text);
  margin: var(--spacing-md) auto;
  padding: var(--spacing-md);
  border-top: 3px solid var(--accent-color);
  background-color: #FAFAF8;
}

.author-bio-text {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  line-height: var(--line-height-base);
  color: var(--secondary-color);
  margin: 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xl) 0;
  background-color: var(--paper-color);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-lg);
}

.footer-content p {
  margin: 0;
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
}

/* ==========================================================================
   Drop Caps
   ========================================================================== */

.article-content > p:first-of-type::first-letter {
  float: left;
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: 4rem;
  line-height: 0.8;
  padding-right: 0.5rem;
  padding-top: 0.1rem;
  color: var(--accent-color);
  font-weight: 500;
}

/* ==========================================================================
   Page Transitions
   ========================================================================== */

main {
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Dark Mode
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --primary-color: #f0f0f0;
    --secondary-color: #a8a8a8;
    --accent-color: #E88580;
    --background-color: #1a1a1a;
    --paper-color: #242424;
    --divider-color: #3a3a3a;
    --link-color: #E88580;
    --link-hover-color: #F5A5A0;
  }

  body {
    background-color: var(--background-color);
  }

  .author-bio {
    background-color: #2a2a2a;
  }

  img {
    opacity: 0.9;
  }

  img:hover {
    opacity: 1;
  }
}

/* ==========================================================================
   Homepage
   ========================================================================== */

.homepage {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--spacing-lg) 0;
}

.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--divider-color);
  margin-bottom: var(--spacing-xl);
}

.hero-greeting {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: 4rem;
  font-weight: 500;
  margin: 0 0 var(--spacing-lg);
  color: var(--accent-color);
}

.hero-intro {
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
  font-size: 1.15rem;
  line-height: 1.7;
}

.hero-intro p {
  text-indent: 0;
  margin-bottom: var(--spacing-md);
}

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

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.button-primary,
.button-secondary {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1.5rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.button-primary {
  background-color: var(--accent-color);
  color: white;
}

.button-primary:hover {
  background-color: var(--link-hover-color);
}

.button-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--divider-color);
}

.button-secondary:hover {
  border-color: var(--primary-color);
}

.section-title {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--divider-color);
}

/* Featured Posts */
.featured-section {
  margin-bottom: var(--spacing-xl);
}

.featured-posts {
  display: grid;
  gap: var(--spacing-lg);
}

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  border: 1px solid var(--divider-color);
  background-color: var(--paper-color);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.featured-card:hover {
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.featured-image {
  overflow: hidden;
}

.featured-image a {
  display: block;
  border: none;
}

.featured-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.featured-card:hover .featured-image img {
  transform: scale(1.02);
}

.featured-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-badge {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-color);
  margin-bottom: var(--spacing-sm);
}

.featured-title {
  font-size: 1.6rem;
  margin: 0 0 var(--spacing-sm);
}

.featured-title a {
  color: var(--primary-color);
  border: none;
}

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

.featured-excerpt {
  color: var(--secondary-color);
  font-size: 1rem;
  line-height: 1.6;
  margin: var(--spacing-sm) 0;
}

.read-more {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  color: var(--accent-color);
  border: none !important;
  margin-top: auto;
}

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

/* Recent Posts */
.recent-section {
  margin-bottom: var(--spacing-xl);
}

.recent-posts {
  margin-bottom: var(--spacing-lg);
}

.recent-post {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--divider-color);
}

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

.recent-title {
  font-size: 1.3rem;
  margin: 0 0 var(--spacing-xs);
}

.recent-title a {
  color: var(--primary-color);
  border: none;
}

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

.view-all {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  color: var(--accent-color);
  border: none !important;
}

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

/* Responsive Homepage */
@media (max-width: 768px) {
  .hero-greeting {
    font-size: 3rem;
  }

  .featured-card {
    grid-template-columns: 1fr;
  }

  .featured-image img {
    height: 180px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
}

/* ==========================================================================
   Tags
   ========================================================================== */

.tags-page {
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.tag-cloud {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  padding: 0;
}

.tag-item {
  margin: 0;
}

.tag-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--divider-color);
  background-color: var(--paper-color);
  transition: all 0.2s ease;
}

.tag-link:hover {
  border-color: var(--accent-color);
  background-color: var(--accent-color);
  color: white;
}

.tag-name {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
}

.tag-count {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  background-color: var(--divider-color);
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
}

.tag-link:hover .tag-count {
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
}

.back-link {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--divider-color);
}

.back-link a {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  color: var(--accent-color);
  border: none !important;
}

/* Post Tags (inline) */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: var(--spacing-md) 0;
}

.post-tag {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.5rem;
  background-color: var(--divider-color);
  color: var(--secondary-color);
  border: none !important;
  transition: all 0.2s ease;
}

.post-tag:hover {
  background-color: var(--accent-color);
  color: white;
}

/* ==========================================================================
   Related Posts
   ========================================================================== */

.related-posts {
  max-width: var(--max-width-text);
  margin: var(--spacing-xl) auto 0;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--divider-color);
}

.related-posts h3 {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-md);
}

.related-list {
  display: grid;
  gap: var(--spacing-md);
}

.related-item {
  padding: var(--spacing-md);
  border: 1px solid var(--divider-color);
  transition: border-color 0.2s ease;
}

.related-item:hover {
  border-color: var(--accent-color);
}

.related-item h4 {
  font-size: 1.1rem;
  margin: 0 0 var(--spacing-xs);
}

.related-item h4 a {
  color: var(--primary-color);
  border: none;
}

.related-item h4 a:hover {
  color: var(--accent-color);
}

/* ==========================================================================
   Speaking Page
   ========================================================================== */

.speaking-page,
.projects-page {
  padding-bottom: var(--spacing-xl);
}

.intro-text {
  font-size: 1.1rem;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-xl);
  text-indent: 0;
}

.talks-list,
.projects-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.talk-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--divider-color);
}

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

.talk-year {
  font-family: 'IBM Plex Mono', monospace;
  font-size: var(--font-size-small);
  color: var(--accent-color);
}

.talk-title {
  font-size: 1.4rem;
  margin: 0 0 var(--spacing-xs);
}

.talk-venue {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

.talk-description {
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

.talk-link,
.project-link {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  color: var(--accent-color);
  border: none !important;
}

.talk-link:hover,
.project-link:hover {
  color: var(--link-hover-color);
}

.speaking-cta {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg);
  background-color: #FAFAF8;
  border-left: 3px solid var(--accent-color);
}

.speaking-cta h2 {
  font-size: 1.3rem;
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

.speaking-cta p {
  margin: 0;
}

/* Projects Page */
.project-item {
  padding: var(--spacing-lg);
  border: 1px solid var(--divider-color);
  transition: border-color 0.2s ease;
}

.project-item:hover {
  border-color: var(--accent-color);
}

.project-title {
  font-size: 1.4rem;
  margin: 0 0 var(--spacing-xs);
}

.project-role {
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-color);
  margin-bottom: var(--spacing-sm);
}

.project-description {
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

@media (max-width: 768px) {
  .talk-item {
    grid-template-columns: 1fr;
  }

  .talk-meta {
    margin-bottom: var(--spacing-xs);
  }
}

@media (prefers-color-scheme: dark) {
  .speaking-cta {
    background-color: #2a2a2a;
  }
}

/* ==========================================================================
   404 Error Page
   ========================================================================== */

.error-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  text-align: center;
}

.error-code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 8rem;
  font-weight: 600;
  color: var(--divider-color);
  margin: 0;
  line-height: 1;
}

.error-title {
  font-size: 2rem;
  margin: var(--spacing-md) 0;
}

.error-message {
  color: var(--secondary-color);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
}

.error-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

@media (max-width: 768px) {
  .error-code {
    font-size: 5rem;
  }

  .error-actions {
    flex-direction: column;
    align-items: center;
  }
}

/* ==========================================================================
   Reading Progress Indicator
   ========================================================================== */

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), #E88580);
  z-index: 1000;
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   Sudoku Easter Egg
   ========================================================================== */

.sudoku-page {
  max-width: var(--max-width-text);
  margin: 0 auto;
  padding-bottom: var(--spacing-xl);
}

.sudoku-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sudoku-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 1px;
  background-color: var(--primary-color);
  border: 2px solid var(--primary-color);
  width: 100%;
  max-width: 450px;
  aspect-ratio: 1;
}

.sudoku-cell {
  background-color: var(--paper-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Crimson Text', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  position: relative;
}

.sudoku-cell.box-left {
  border-left: 2px solid var(--primary-color);
}

.sudoku-cell.box-top {
  border-top: 2px solid var(--primary-color);
}

.sudoku-cell.given {
  background-color: var(--divider-color);
  color: var(--primary-color);
}

.sudoku-cell.highlighted {
  background-color: rgba(184, 74, 70, 0.08);
}

.sudoku-cell.given.highlighted {
  background-color: rgba(184, 74, 70, 0.15);
}

.sudoku-cell.error {
  background-color: rgba(184, 74, 70, 0.2);
}

.sudoku-cell.error input {
  color: var(--accent-color);
}

.sudoku-cell input {
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  text-align: center;
  font-family: 'Crimson Text', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent-color);
  padding: 0;
  margin: 0;
}

.sudoku-cell input:focus {
  outline: none;
  background-color: rgba(184, 74, 70, 0.12);
}

.sudoku-controls {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.sudoku-message {
  margin-top: var(--spacing-md);
  font-family: Futura, 'Trebuchet MS', Arial, sans-serif;
  font-size: var(--font-size-small);
  text-align: center;
  min-height: 1.5em;
}

.sudoku-message.success {
  color: #2e7d32;
}

.sudoku-message.error {
  color: var(--accent-color);
}

.sudoku-message.info {
  color: var(--secondary-color);
}

/* Sudoku responsive */
@media (max-width: 500px) {
  .sudoku-cell,
  .sudoku-cell input {
    font-size: 1.2rem;
  }

  .sudoku-controls {
    flex-direction: column;
    width: 100%;
    max-width: 450px;
  }

  .sudoku-controls button {
    width: 100%;
  }
}

/* Sudoku dark mode */
@media (prefers-color-scheme: dark) {
  .sudoku-board {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
  }

  .sudoku-cell.box-left {
    border-left-color: var(--primary-color);
  }

  .sudoku-cell.box-top {
    border-top-color: var(--primary-color);
  }

  .sudoku-cell.given {
    background-color: #3a3a3a;
  }

  .sudoku-cell.highlighted {
    background-color: rgba(232, 133, 128, 0.1);
  }

  .sudoku-cell.given.highlighted {
    background-color: rgba(232, 133, 128, 0.2);
  }

  .sudoku-cell.error {
    background-color: rgba(232, 133, 128, 0.25);
  }

  .sudoku-cell input:focus {
    background-color: rgba(232, 133, 128, 0.15);
  }

  .sudoku-message.success {
    color: #81c784;
  }
}