/* ==========================================================================
   Terminal Dark — screen.css
   thedev.dev Ghost theme
   ========================================================================== */

/* ==========================================================================
   1. Design Tokens
   ========================================================================== */

:root {
  /* Backgrounds */
  --bg:            #0a0a0a;
  --surface:       #111111;
  --border:        #1a1a1a;
  --border-card:   #222222;

  /* Accent colours */
  --green:         #00ff88;
  --blue:          #4488ff;
  --purple:        #aa66ff;

  /* Text */
  --text-heading:   #ffffff;
  --text-body:      #cccccc;
  --text-secondary: #888888;
  --text-muted:     #555555;

  /* Typography */
  --font-mono: 'Fira Code', monospace;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Layout widths */
  --content-width: 720px;
  --wide-width:    1080px;
  --full-width:    1200px;
}

/* ==========================================================================
   2. Font Faces
   ========================================================================== */

@font-face {
  font-family: 'Fira Code';
  src: url('../fonts/FiraCode-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Fira Code';
  src: url('../fonts/FiraCode-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-Variable.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ==========================================================================
   3. CSS Reset
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--green);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
  color: var(--text-heading);
  opacity: 0.9;
}

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ==========================================================================
   4. Navigation
   ========================================================================== */

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border);
  background-color: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.site-nav-logo:hover {
  color: var(--green);
  opacity: 0.8;
}

.site-nav-logo::before {
  content: '> ';
  opacity: 0.6;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.site-nav-links a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.15s ease;
}

.site-nav-links a:hover,
.site-nav-links a.active {
  color: var(--green);
}

.site-nav-links .nav-cta {
  color: var(--green);
  border: 1px solid var(--green);
  padding: 0.35rem 0.9rem;
  border-radius: 3px;
}

.site-nav-links .nav-cta:hover {
  background-color: var(--green);
  color: var(--bg);
}

/* ==========================================================================
   5. Homepage
   ========================================================================== */

.home-section {
  max-width: var(--full-width);
  margin: 0 auto;
  padding: 4rem 2rem;
}

.home-prompt {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.home-prompt .dollar {
  color: var(--green);
  font-weight: 700;
}

.home-hero {
  margin-bottom: 4rem;
}

.home-hero-name {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.home-hero-name .accent {
  color: var(--green);
}

.home-hero-role {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  color: var(--blue);
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.home-hero-role::before {
  content: '// ';
  color: var(--text-muted);
}

.home-hero-tagline {
  font-size: 1.15rem;
  color: var(--text-body);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.home-hero-bio {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.home-cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--green);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.6rem 1.4rem;
  border-radius: 3px;
  text-decoration: none;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  color: var(--bg);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 0.6rem 1.4rem;
  border-radius: 3px;
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--green);
  color: var(--green);
}

/* ==========================================================================
   6. Projects Grid
   ========================================================================== */

.projects-section {
  max-width: var(--full-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

.section-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.section-heading::before {
  content: '## ';
  color: var(--green);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background-color: var(--surface);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  padding: 1.5rem;
  transition: border-color 0.2s ease, transform 0.15s ease;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.project-card:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.project-card-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.project-card-links {
  display: flex;
  gap: 0.75rem;
}

.project-card-links a {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  transition: color 0.15s ease;
}

.project-card-links a:hover {
  color: var(--green);
}

.project-card-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-heading);
}

.project-card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background-color: var(--bg);
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

/* ==========================================================================
   7. Post List (Homepage)
   ========================================================================== */

.post-list-section {
  max-width: var(--full-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  border: 1px solid var(--border-card);
  border-radius: 6px;
  overflow: hidden;
}

.post-list-item {
  border-left: 3px solid transparent;
  padding: 1.25rem 1.5rem;
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  transition: border-left-color 0.15s ease, background-color 0.15s ease;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

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

.post-list-item:hover {
  border-left-color: var(--green);
  background-color: rgba(0, 255, 136, 0.03);
}

.post-list-item a {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.post-list-title {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-heading);
  line-height: 1.4;
  transition: color 0.15s ease;
}

.post-list-item:hover .post-list-title {
  color: var(--green);
}

.post-list-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.post-list-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 0.15rem;
}

.post-list-tag {
  color: var(--green);
  font-size: 0.72rem;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
  padding: 1rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.pagination-link {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background-color: var(--surface);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.pagination-link:hover:not(.pagination-disabled) {
  border-color: var(--green);
  color: var(--green);
}

.pagination-disabled {
  opacity: 0.3;
  cursor: default;
  pointer-events: none;
}

.pagination-info {
  color: var(--text-muted);
  font-size: 0.8rem;
  min-width: 3rem;
  text-align: center;
}

/* ==========================================================================
   8. Post Cards (Blog Listing)
   ========================================================================== */

.post-feed {
  max-width: var(--full-width);
  margin: 0 auto;
  padding: 3rem 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.post-card {
  background-color: var(--surface);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.post-card:hover {
  border-color: var(--green);
  transform: translateY(-3px);
}

.post-card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.post-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.post-card-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green);
}

.post-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.35;
  margin: 0;
}

.post-card-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

.post-card:hover .post-card-title a {
  color: var(--green);
}

.post-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.post-card-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.post-card-meta-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.post-card-author {
  color: var(--text-secondary);
}

/* ==========================================================================
   9. Single Post Layout
   ========================================================================== */

.post-wrapper {
  max-width: var(--full-width);
  margin: 0 auto;
  padding: 3rem 2rem;
  display: grid;
  grid-template-columns: var(--content-width) 240px;
  gap: 4rem;
  align-items: start;
}

.post-main {
  min-width: 0;
}

.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.post-tag-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--green);
  margin-bottom: 1rem;
  display: inline-block;
}

.post-tag-label::before {
  content: '#';
}

.post-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--text-heading);
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.post-excerpt {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.post-meta-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--border-card);
}

.post-meta-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.post-meta-author {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-body);
}

.post-meta-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.post-feature-image {
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border-card);
  margin-bottom: 2.5rem;
}

/* ==========================================================================
   10. Post Content
   ========================================================================== */

.post-content {
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.8;
}

.post-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-heading);
  margin: 2.5rem 0 1rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.post-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  margin: 2rem 0 0.75rem;
  line-height: 1.3;
}

.post-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-heading);
  margin: 1.75rem 0 0.5rem;
}

.post-content h5,
.post-content h6 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin: 1.5rem 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.post-content p {
  margin-bottom: 1.4rem;
}

.post-content p:last-child {
  margin-bottom: 0;
}

.post-content ul,
.post-content ol {
  margin: 0 0 1.4rem 1.5rem;
  list-style: revert;
}

.post-content li {
  margin-bottom: 0.4rem;
  color: var(--text-body);
}

.post-content ul li::marker {
  color: var(--green);
}

.post-content ol li::marker {
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.post-content a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(68, 136, 255, 0.4);
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.post-content a:hover {
  color: var(--green);
  text-decoration-color: rgba(0, 255, 136, 0.5);
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--border-card);
  margin: 1.75rem 0;
  display: block;
}

.post-content figure {
  margin: 2rem 0;
}

.post-content figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.5rem;
}

.post-content blockquote {
  border-left: 3px solid var(--green);
  margin: 2rem 0;
  padding: 1rem 1.5rem;
  background-color: rgba(0, 255, 136, 0.04);
  border-radius: 0 4px 4px 0;
}

.post-content blockquote p {
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 0;
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 0.9rem;
}

.post-content th {
  background-color: var(--surface);
  color: var(--text-heading);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-card);
  text-align: left;
}

.post-content td {
  padding: 0.65rem 1rem;
  border: 1px solid var(--border);
  color: var(--text-body);
  vertical-align: top;
}

.post-content tr:nth-child(even) td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* ==========================================================================
   11. Code Blocks
   ========================================================================== */

.post-content pre {
  background-color: var(--surface);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  overflow-x: auto;
  position: relative;
  font-size: 0.875rem;
  line-height: 1.65;
}

.post-content pre::before {
  content: attr(data-lang);
  position: absolute;
  top: 0.5rem;
  right: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.post-content pre code {
  font-family: var(--font-mono);
  font-size: inherit;
  color: var(--text-body);
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
  white-space: pre;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--green);
  background-color: rgba(0, 255, 136, 0.08);
  border: 1px solid rgba(0, 255, 136, 0.15);
  padding: 0.15em 0.45em;
  border-radius: 3px;
}

/* ==========================================================================
   12. Sidebar TOC
   ========================================================================== */

.post-sidebar {
  position: sticky;
  top: 5rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-card) transparent;
}

.post-sidebar::-webkit-scrollbar {
  width: 4px;
}

.post-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.post-sidebar::-webkit-scrollbar-thumb {
  background-color: var(--border-card);
  border-radius: 2px;
}

.toc {
  margin-bottom: 2.5rem;
}

.toc-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.toc-list li {
  margin: 0;
}

.toc-list a {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  display: block;
  padding: 0.25rem 0.6rem;
  border-left: 2px solid transparent;
  border-radius: 0 3px 3px 0;
  line-height: 1.4;
  transition: color 0.15s ease, border-left-color 0.15s ease, background-color 0.15s ease;
}

.toc-list a:hover {
  color: var(--text-secondary);
  border-left-color: var(--border-card);
}

.toc-list a.active {
  color: var(--green);
  border-left-color: var(--green);
  background-color: rgba(0, 255, 136, 0.05);
}

.toc-list .toc-h3 a {
  padding-left: 1.4rem;
  font-size: 0.75rem;
}

.toc-list .toc-h4 a {
  padding-left: 2.2rem;
  font-size: 0.72rem;
}

.toc-related {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.toc-related-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.toc-related-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-related-list a {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  line-height: 1.4;
  transition: color 0.15s ease;
}

.toc-related-list a:hover {
  color: var(--green);
}

/* ==========================================================================
   13. Post Footer
   ========================================================================== */

.post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.post-tags a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background-color: var(--surface);
  border: 1px solid var(--border-card);
  padding: 0.25rem 0.65rem;
  border-radius: 3px;
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.post-tags a::before {
  content: '#';
  color: var(--green);
}

.post-tags a:hover {
  border-color: var(--green);
  color: var(--text-secondary);
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.post-nav-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 1.25rem;
  background-color: var(--surface);
  border: 1px solid var(--border-card);
  border-radius: 6px;
  text-decoration: none;
  transition: border-color 0.15s ease;
}

.post-nav-item:hover {
  border-color: var(--green);
}

.post-nav-item.next {
  text-align: right;
  margin-left: auto;
}

.post-nav-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.post-nav-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-heading);
  line-height: 1.35;
}

/* ==========================================================================
   14. Author Page
   ========================================================================== */

.author-page {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

.author-header {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}

.author-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--border-card);
}

.author-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.author-name {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
}

.author-handle {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--green);
}

.author-bio {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 520px;
}

.author-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.author-meta-item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.author-meta-item a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.author-meta-item a:hover {
  color: var(--green);
}

.author-post-count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* ==========================================================================
   15. Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  max-width: var(--full-width);
  margin: 0 auto;
}

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

.site-footer-text a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-footer-text a:hover {
  color: var(--green);
}

.site-footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.site-footer-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-footer-links a:hover {
  color: var(--green);
}

/* ==========================================================================
   16. Page Layout
   ========================================================================== */

.page-content {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.page-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   17. Tag Page
   ========================================================================== */

.tag-page {
  max-width: var(--full-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

.tag-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.tag-name {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 0.5rem;
}

.tag-name::before {
  content: '#';
  color: var(--green);
  margin-right: 0.1em;
}

.tag-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 520px;
  margin-top: 0.75rem;
}

.tag-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ==========================================================================
   18. Error Page
   ========================================================================== */

.error-page {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  max-width: var(--content-width);
  margin: 0 auto;
}

.error-code {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 15vw, 7rem);
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 40px rgba(0, 255, 136, 0.3);
}

.error-message {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 0.75rem;
}

.error-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 420px;
}

.error-prompt {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.error-prompt::before {
  content: '$ ';
  color: var(--green);
}

/* ==========================================================================
   19. Responsive Breakpoints
   ========================================================================== */

/* ----- 900px: single column post, hide sidebar ----- */

@media (max-width: 900px) {
  .post-wrapper {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 2rem 1.5rem;
  }

  .post-sidebar {
    display: none;
  }

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

  .post-feed {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
  }

  .home-section {
    padding: 2.5rem 1.5rem;
  }

  .projects-section {
    padding: 2rem 1.5rem;
  }

  .author-header {
    gap: 1.25rem;
  }

  .author-avatar {
    width: 72px;
    height: 72px;
  }
}

/* ----- 600px: stack nav, smaller headings, single column projects ----- */

@media (max-width: 600px) {
  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
  }

  .site-nav-links {
    gap: 1.25rem;
    flex-wrap: wrap;
  }

  .home-hero-name {
    font-size: 2rem;
  }

  .home-hero-role {
    font-size: 0.9rem;
  }

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

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

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

  .author-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.25rem;
  }

  .author-meta {
    justify-content: center;
  }

  .author-bio {
    text-align: center;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .post-wrapper {
    padding: 1.5rem 1rem;
  }

  .post-content h2 {
    font-size: 1.35rem;
  }

  .post-content h3 {
    font-size: 1.1rem;
  }

  .error-code {
    font-size: 5rem;
  }

  .home-section {
    padding: 2rem 1rem;
  }

  .tag-page,
  .author-page,
  .page-content {
    padding: 2rem 1rem;
  }

  .post-list-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  .post-list-meta {
    white-space: normal;
  }
}