/* ═══════════════════════════════════════════════════════════════════════════
   Kaisar Kushibar — Academic Personal Website
   Clean, modern, academic design
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── CSS Variables ───────────────────────────────────────────────────────── */
:root {
  --font-sans:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Merriweather", Georgia, serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fb;
  --color-bg-card: #ffffff;
  --color-surface: #f0f2f5;
  --color-border: #e2e6ea;

  --color-text: #1a1d23;
  --color-text-secondary: #4a5064;
  --color-text-muted: #8891a4;

  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff4ff;
  --color-accent: #0891b2;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --container-max: 1100px;
  --content-max: 760px;

  --transition: 0.2s ease;
}

/* ─── Reset & Base ────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* ─── Container ───────────────────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

/* ─── Navigation ──────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-brand:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-links a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  color: var(--color-text);
  padding: 0.5rem;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-md);
  }

  .nav-open .nav-links {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
  }
}

/* ─── Hero Section ────────────────────────────────────────────────────────── */
.hero {
  padding: 4rem 0 3rem;
  background: linear-gradient(
    135deg,
    var(--color-bg-alt) 0%,
    var(--color-bg) 100%
  );
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 640px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  .hero-image {
    display: flex;
    justify-content: center;
  }
}

.profile-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-bg);
  box-shadow: var(--shadow-lg);
}

.hero-text h1 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.hero-title {
  font-weight: 400;
  color: var(--color-text-secondary);
}

.hero-role {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 0.15rem;
}

.hero-affiliation {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.hero-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .hero-links {
    justify-content: center;
  }
}

/* ─── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.2rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.btn-small {
  padding: 0.35rem 0.8rem;
  font-size: 0.8rem;
}

.btn-tiny {
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  border-radius: 4px;
}

/* ─── Sections ────────────────────────────────────────────────────────────── */
.section {
  padding: 3rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-compact {
  padding: 1.5rem 0 0;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.section-more {
  text-align: center;
  margin-top: 2rem;
}

.page-header {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-subtitle {
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

/* ─── Cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.intro-card h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.intro-card p {
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
  line-height: 1.8;
}

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

/* ─── Post Cards (Index) ─────────────────────────────────────────────────── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.post-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.post-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.post-card-body {
  padding: 1.5rem;
}

.post-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.post-card h3 a {
  color: var(--color-text);
}

.post-card h3 a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.post-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

/* ─── Post Meta ───────────────────────────────────────────────────────────── */
.post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.post-meta-inline {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.reading-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ─── Tags ────────────────────────────────────────────────────────────────── */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border-radius: 99px;
  text-decoration: none;
  transition: all var(--transition);
}

.tag:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-decoration: none;
}

.tag-small {
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
}

.tag-count {
  font-size: 0.65rem;
  opacity: 0.7;
  margin-left: 0.15rem;
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.tags-label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-right: 0.25rem;
}

/* ─── Blog List ───────────────────────────────────────────────────────────── */
.year-heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}

.year-heading:first-of-type {
  margin-top: 0;
}

.posts-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-list-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

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

.post-list-item time {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  padding-top: 0.15rem;
}

.post-list-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
  letter-spacing: -0.01em;
}

.post-list-content h3 a {
  color: var(--color-text);
}

.post-list-content h3 a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.post-list-content p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ─── Post Full ───────────────────────────────────────────────────────────── */
.post-header {
  padding: 3rem 0 1.5rem;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.post-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.post-cover {
  margin: 2rem 0;
}

.post-cover img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* Table of Contents */
.toc-container {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.toc {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}

.toc summary {
  cursor: pointer;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

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

.toc li {
  margin: 0.3rem 0;
}

.toc li ul {
  padding-left: 1.25rem;
}

.toc a {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  text-decoration: none;
}

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

/* Post Body */
.post-body {
  padding: 2.5rem 0;
}

.post-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
}

.post-share {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.post-share span {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.post-share a {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.post-share a:hover {
  color: var(--color-primary);
}

.post-nav {
  display: flex;
  justify-content: space-between;
}

/* ─── Prose (article content) ─────────────────────────────────────────────── */
.prose {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text);
}

.prose h1,
.prose h2,
.prose h3,
.prose h4,
.prose h5,
.prose h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.prose h1 {
  font-size: 1.8rem;
}
.prose h2 {
  font-size: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3rem;
}
.prose h3 {
  font-size: 1.25rem;
}
.prose h4 {
  font-size: 1.1rem;
}

.prose p {
  margin-bottom: 1.25rem;
}

.prose a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: rgba(37, 99, 235, 0.3);
  text-underline-offset: 2px;
}

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

.prose ul,
.prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose img {
  border-radius: var(--radius-md);
  margin: 1.5rem auto;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}

.prose figure {
  margin: 2rem 0;
  text-align: center;
}

.prose figcaption {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  font-style: italic;
}

.prose blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-alt);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

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

/* Code */
.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-surface);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  color: var(--color-text);
}

.prose pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.875rem;
  line-height: 1.6;
  box-shadow: var(--shadow-sm);
}

.prose pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

/* Tables */
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.prose th,
.prose td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

.prose th {
  background: var(--color-bg-alt);
  font-weight: 600;
}

.prose tr:nth-child(even) {
  background: var(--color-bg-alt);
}

/* Horizontal rule */
.prose hr {
  border: none;
  border-top: 2px solid var(--color-border);
  margin: 2.5rem 0;
}

/* Footnotes */
.prose .footnote-ref {
  font-size: 0.75em;
  vertical-align: super;
}

/* Video embeds */
.prose .video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
}

.prose .video-container iframe,
.prose .video-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
}

/* Interactive plots container */
.prose .plotly-chart {
  margin: 1.5rem 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 400px;
}

/* ─── Publications ────────────────────────────────────────────────────────── */
.pub-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  align-items: center;
}

.pub-view-buttons {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.pub-view-btn {
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.pub-view-btn.active {
  background: var(--color-primary);
  color: #fff;
}

.pub-view-btn:hover:not(.active) {
  background: var(--color-bg-alt);
}

.pub-search {
  flex: 1;
  min-width: 200px;
}

.pub-search input {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition);
}

.pub-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.pub-year-heading {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text);
}

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

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pub-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

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

.pub-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  line-height: 1.4;
}

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

.pub-title a:hover {
  color: var(--color-primary);
}

.pub-authors {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.2rem;
  line-height: 1.5;
}

.pub-authors strong {
  color: var(--color-text);
  font-weight: 600;
}

.pub-venue {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.pub-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.pub-bibtex {
  margin-top: 0.75rem;
  background: #1e293b;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  line-height: 1.5;
  overflow-x: auto;
}

.pub-bibtex code {
  font-family: var(--font-mono);
  background: none;
  padding: 0;
  color: inherit;
}

/* ─── Project Grid ────────────────────────────────────────────────────────── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition);
}

.project-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.project-logo {
  height: 60px;
  width: auto;
  object-fit: contain;
  margin-bottom: 1rem;
}

.project-card h3 {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.project-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

/* ─── Empty State ─────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-muted);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
  opacity: 0.4;
}

.empty-state p {
  margin-bottom: 0.5rem;
}

.empty-state code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-surface);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.text-muted {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ─── Footer ──────────────────────────────────────────────────────────────── */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  margin-top: 2rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-info p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-social {
  display: flex;
  gap: 1.25rem;
}

.footer-social a {
  color: var(--color-text-muted);
  font-size: 1.15rem;
  transition: color var(--transition);
}

.footer-social a:hover {
  color: var(--color-primary);
}

/* ─── Syntax Highlighting (Pygments-compatible) ───────────────────────────── */
.highlight {
  background: #1e293b;
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.highlight pre {
  margin: 0;
  padding: 0;
  background: none;
  box-shadow: none;
}

.highlight code {
  background: none;
  padding: 0;
}

/* ─── Responsive Utilities ────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero-text h1 {
    font-size: 1.75rem;
  }

  .post-title {
    font-size: 1.75rem;
  }

  .page-title {
    font-size: 1.75rem;
  }

  .section {
    padding: 2rem 0;
  }

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

  .post-list-item {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

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

  .pub-controls {
    flex-direction: column;
  }

  .pub-search {
    min-width: auto;
    width: 100%;
  }
}

/* ─── Print Styles ────────────────────────────────────────────────────────── */
@media print {
  .site-header,
  .site-footer,
  .post-share,
  .post-nav,
  .nav-toggle,
  .pub-controls {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

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

  .hero {
    background: none;
    border: none;
  }
}