/* ==========================================================================
   Advait Theme - Contemplative Precision
   A refined editorial aesthetic for philosophical and technical writing
   ========================================================================== */

:root {
  /* Color Palette - Warm paper with deep teal */
  --color-bg: #F9F7F3;
  --color-bg-alt: #F0EDE6;
  --color-text: #1A1A1A;
  --color-text-muted: #5C5C5C;
  --color-accent: #EA580C;
  --color-accent-dark: #C2410C;
  --color-border: #D4CFC4;
  --color-selection: #EA580C22;

  /* Typography */
  --font-heading: 'Fraunces', Georgia, serif;
  --font-body: 'Spectral', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Content width */
  --content-width: 728px;
  --content-width-wide: 900px;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

}

/* ==========================================================================
   Layout
   ========================================================================== */

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-xl) 0;

  /* Fade in animation */
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.site-header {
  padding: var(--space-lg);
  border-bottom: 2px solid var(--color-accent);
}

.nav-container {
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.site-title {
  display: flex;
  align-items: baseline;
  text-decoration: none;
  transition: transform 0.2s ease;
}

.site-title:hover {
  transform: translateX(2px);
}

.site-title-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.site-title-tld {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-accent);
  margin-left: 1px;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ==========================================================================
   Typography
   ========================================================================== */

.prose {
  font-size: 1rem;
  line-height: 1.8;
  text-align: justify;
  hyphens: auto;
}

.prose h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 var(--space-lg) 0;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.prose h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.3;
  margin: var(--space-xl) 0 var(--space-md) 0;
  letter-spacing: -0.01em;
  color: var(--color-text);

  /* Decorative accent line */
  padding-top: var(--space-lg);
  border-top: 2px solid var(--color-accent);
}

.prose h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.4;
  margin: var(--space-lg) 0 var(--space-sm) 0;
}

.prose p {
  margin: 0 0 var(--space-md) 0;
}

.prose a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.prose a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

.prose strong {
  font-weight: 700;
  color: var(--color-accent);
}

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

.prose em {
  font-style: italic;
}

.prose ul, .prose ol {
  margin: 0 0 var(--space-md) 0;
  padding-left: var(--space-lg);
  padding-right: var(--space-md);
}

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

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

.prose ol li::marker {
  font-weight: 700;
  color: var(--color-accent);
}

/* Nested lists */
.prose ul ul,
.prose ol ol,
.prose ul ol,
.prose ol ul {
  margin-top: var(--space-sm);
  margin-bottom: 0;
}

/* Blockquotes - Distinguished styling */
.prose blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-alt);
  font-style: italic;
  color: var(--color-text);
}

.prose blockquote p {
  margin: 0;
}

.prose blockquote p + p {
  margin-top: var(--space-sm);
}

.prose blockquote ul,
.prose blockquote ol {
  margin-left: calc(-1 * var(--space-md));
  margin-bottom: 0;
}

/* Code */
.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 0.15em 0.4em;
  background: var(--color-bg-alt);
  border-radius: 3px;
  color: var(--color-accent-dark);
}

.prose pre {
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: #1A1A1A;
  border-radius: 6px;
  overflow-x: auto;
}

.prose pre code {
  padding: 0;
  background: none;
  color: #E8E8E8;
  font-size: 0.85rem;
  line-height: 1.6;
}

/* Horizontal rule */
.prose hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-xl) 0;
}

/* Images */
.prose img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: var(--space-sm) 0;
}

/* ==========================================================================
   Talks Grid
   ========================================================================== */

.talks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-md) 0;
}

.talk-card {
  display: block;
  text-decoration: none;
  border-radius: 12px;
  corner-shape: superellipse(1.5);
  overflow: hidden;
  background: var(--color-bg-alt);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.talk-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.15);
}

.talk-thumbnail {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.talk-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  margin: 0;
  border-radius: 0;
}

.talk-card:hover .talk-thumbnail img {
  transform: scale(1.05);
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: rgba(0, 0, 0, 0.75);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.play-button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 54%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 7px 0 7px 11px;
  border-color: transparent transparent transparent white;
}

.talk-card:hover .play-button {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
}

.prose h3.talk-title {
  font-family: var(--font-heading);
  font-size: 1.0rem;
  font-weight: 600;
  padding: 2px var(--space-md) 0;
  margin: var(--space-md) 0 var(--space-xs);
  color: var(--color-text);
  line-height: 1.3;
  text-align: left;
  text-decoration: none;
}

.talk-description {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 0 var(--space-md) var(--space-xs);
  margin: 0;
  line-height: 1.4;
  text-align: left;
}

.prose .talk-card,
.prose .talk-card:hover {
  text-decoration: none !important;
}

/* ==========================================================================
   Home Page
   ========================================================================== */

.home-content {
  animation: fadeIn 0.8s ease-out;
}

.posts-section {
  margin-top: var(--space-xl);
}

.posts-heading {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--space-md) 0;
  letter-spacing: -0.01em;
  color: var(--color-text);
  padding-top: var(--space-lg);
  border-top: 2px solid var(--color-accent);
}

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

.post-item {
  margin-bottom: var(--space-sm);
}

.post-link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.2s ease;
}

.post-link:hover {
  border-bottom-color: var(--color-border);
}

.post-title {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  transition: color 0.2s ease;
}

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

.post-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

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

.single-post {
  animation: fadeIn 0.8s ease-out;
}

.post-header {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-lg);
  border-bottom: 2px solid var(--color-accent);
}

.post-header .post-title {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-sm) 0;
  letter-spacing: -0.02em;
}

.post-subtitle {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md) 0;
  line-height: 1.4;
}

.post-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.post-hero {
  width: 100%;
  height: auto;
  border-radius: 4px;
  margin: var(--space-lg) 0;
}

.post-content {
  margin-bottom: var(--space-2xl);
}

/* Post navigation */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  padding-top: var(--space-xl);
}

.nav-prev, .nav-next {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  text-decoration: none;
  padding: var(--space-md);
  border-radius: 6px;
  transition: background 0.2s ease;
}

.nav-prev:hover, .nav-next:hover {
  background: var(--color-bg-alt);
}

.nav-prev {
  grid-column: 1;
}

.nav-next {
  grid-column: 2;
  text-align: right;
}

.nav-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.nav-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-accent-dark);
  transition: color 0.2s ease;
}

.nav-prev:hover .nav-title,
.nav-next:hover .nav-title {
  color: var(--color-accent);
}

/* ==========================================================================
   List Page
   ========================================================================== */

.list-page {
  animation: fadeIn 0.8s ease-out;
}

.list-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.list-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.02em;
}

.list-description {
  margin: var(--space-md) 0 0 0;
  color: var(--color-text-muted);
}

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

.site-footer {
  padding: var(--space-xl) var(--space-lg);
  border-top: 2px solid var(--color-accent);
  margin-top: auto;
}

.footer-content {
  max-width: var(--content-width-wide);
  margin: 0 auto;
  text-align: center;
}

.copyright {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.copyright-title {
  color: var(--color-accent);
  text-decoration: none;
}

.copyright-title:hover {
  text-decoration: underline;
}

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

@media (max-width: 868px) {
  html {
    font-size: 16px;
  }

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

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

  .nav-container {
    padding: 0 var(--space-md);
    flex-direction: column;
    gap: var(--space-sm);
    align-items: flex-start;
  }

  .prose h1 {
    font-size: 2rem;
  }

  .prose h2 {
    font-size: 1.5rem;
  }

  .post-header .post-title {
    font-size: 2rem;
  }

  .post-link {
    flex-direction: column;
    gap: var(--space-xs);
    align-items: flex-start;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .nav-next {
    text-align: left;
  }
}

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

@media print {
  body {
    background: white;
    background-image: none;
  }

  .site-header,
  .site-footer,
  .post-nav {
    display: none;
  }

  .main-content {
    max-width: 100%;
    padding: 0;
  }
}