/* ============================================
   Sean O'Mahoney — Personal Website
   styles.css  v2 — VISUAL OVERHAUL
   Dual-theme: Dark (default) + Parchment (light)
   WCAG AA compliant
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Dark Theme (default) */
  --bg:              #1A1A1D;
  --bg-card:         #232326;
  --bg-footer:       #111112;
  --accent-primary:  #C49A6C;
  --accent-secondary:#7EBDC2;
  --text-primary:    #EAEAEA;
  --text-secondary:  #C7C7C7;
  --interactive:     #F2B632;
  --border:          rgba(234,234,234,0.08);
  --shadow:          rgba(0,0,0,0.4);
  --glow:            rgba(196,154,108,0.25);
  --glow-secondary:  rgba(126,189,194,0.2);
  --card-glow:       rgba(196,154,108,0.08);

  /* Typography scale */
  --fs-hero:   clamp(2.4rem, 5vw, 4rem);
  --fs-h1:     clamp(1.8rem, 3vw, 2.6rem);
  --fs-h2:     clamp(1.4rem, 2.4vw, 2rem);
  --fs-h3:     clamp(1.15rem, 1.8vw, 1.5rem);
  --fs-body:   1rem;
  --fs-small:  0.875rem;
  --fs-xs:     0.75rem;

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

  /* Layout */
  --max-width: 1140px;
  --nav-height: 64px;
  --radius:    8px;
  --radius-lg: 16px;

  /* Transitions */
  --transition: 0.25s ease;
}

/* ---------- Parchment Theme ---------- */
[data-theme="parchment"] {
  --bg:              #EAE2D6;
  --bg-card:         #F4EEE6;
  --bg-footer:       #DCD2C4;
  --accent-primary:  #B77B57;
  --accent-secondary:#497073;
  --text-primary:    #1E1E1E;
  --text-secondary:  #4A4A4A;
  --interactive:     #8B4F3A;
  --border:          rgba(30,30,30,0.1);
  --shadow:          rgba(0,0,0,0.12);
  --glow:            rgba(183,123,87,0.2);
  --glow-secondary:  rgba(73,112,115,0.15);
  --card-glow:       rgba(183,123,87,0.06);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg);
  transition: background-color var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color var(--transition), text-decoration var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--interactive);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--interactive);
  outline-offset: 2px;
  border-radius: 2px;
}

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

ul, ol {
  list-style: none;
}

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

/* ---------- Custom Scrollbar ---------- */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--interactive);
}
html {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-primary) var(--bg);
}

/* ---------- Scroll Progress Bar ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--interactive));
  z-index: 10001;
  transition: width 0.05s linear;
  pointer-events: none;
}

/* ---------- Cursor Glow ---------- */
.cursor-glow {
  position: fixed;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  mix-blend-mode: screen;
}
[data-theme="parchment"] .cursor-glow {
  mix-blend-mode: multiply;
}
body:hover .cursor-glow {
  opacity: 1;
}

/* ---------- Canvas Background ---------- */
.canvas-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.chip {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 999px;
  background: var(--accent-primary);
  color: var(--bg);
  transition: background var(--transition), transform 0.15s ease, box-shadow var(--transition);
}

.chip:hover {
  background: var(--interactive);
  transform: scale(1.05);
  box-shadow: 0 0 12px var(--glow);
}

/* ---------- Button with Ripple ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75em 1.6em;
  font-size: var(--fs-body);
  font-weight: 600;
  border-radius: var(--radius);
  background: var(--accent-primary);
  color: var(--bg);
  transition: background var(--transition), transform 0.15s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn:hover,
.btn:focus-visible {
  background: var(--interactive);
  text-decoration: none;
  color: var(--bg);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--glow);
}

.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out forwards;
  pointer-events: none;
}

@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  border-color: var(--interactive);
  color: var(--interactive);
  background: transparent;
  box-shadow: 0 0 20px var(--glow);
}

.section {
  padding-block: var(--space-2xl);
  position: relative;
}

.section__title {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-lg);
  color: var(--accent-primary);
}

/* ---------- Animated Gradient Text ---------- */
.gradient-text {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), var(--interactive), var(--accent-primary));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---------- Navigation (Glassmorphism) ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(26,26,29,0.75);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background var(--transition);
}

[data-theme="parchment"] .nav {
  background: rgba(234,226,214,0.8);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav__logo:hover {
  color: var(--interactive);
  text-decoration: none;
}

.nav__logo .rune {
  color: var(--accent-primary);
  margin-right: var(--space-xs);
  display: inline-block;
  transition: transform 0.3s ease;
}

.nav__logo:hover .rune {
  transform: rotate(360deg);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), var(--interactive));
  transition: width 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.nav__link:hover,
.nav__link--active {
  color: var(--interactive);
  text-decoration: none;
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: color var(--transition), background var(--transition), transform 0.3s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--interactive);
  background: var(--border);
  transform: rotate(30deg);
}

/* Mobile nav toggle */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.nav__burger span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Burger animation when open */
.nav__burger--open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__burger--open span:nth-child(2) {
  opacity: 0;
}
.nav__burger--open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
  .nav__burger {
    display: flex;
  }

  .nav__links {
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: var(--space-xl);
    gap: var(--space-lg);
    background: rgba(26,26,29,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
  }

  [data-theme="parchment"] .nav__links {
    background: rgba(234,226,214,0.95);
  }

  .nav__links--open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: var(--fs-h3);
  }
}

/* ---------- Hero Section ---------- */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  padding-bottom: var(--space-2xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero__content {
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.hero__greeting {
  font-size: var(--fs-small);
  font-family: 'Fira Code', 'Courier New', monospace;
  color: var(--accent-secondary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hero__greeting .cursor {
  display: inline-block;
  width: 8px;
  height: 1.2em;
  background: var(--accent-secondary);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.hero__title .highlight {
  background: linear-gradient(135deg, var(--accent-primary), var(--interactive));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 560px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* Hero decorative floating rune */
.hero__rune-float {
  position: absolute;
  font-size: 12rem;
  opacity: 0.025;
  color: var(--accent-primary);
  pointer-events: none;
  right: -2rem;
  top: 50%;
  transform: translateY(-50%);
  animation: runeRotate 30s linear infinite;
}

@keyframes runeRotate {
  to { transform: translateY(-50%) rotate(360deg); }
}

/* ---------- Card (shared) with Glow Border ---------- */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--border);
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: conic-gradient(from var(--card-angle, 0deg), transparent 40%, var(--accent-primary) 50%, var(--accent-secondary) 60%, transparent 70%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--shadow), 0 0 30px var(--card-glow);
}

/* 3D Tilt effect (applied via JS) */
.card[data-tilt] {
  transform-style: preserve-3d;
  will-change: transform;
}

.card__cover {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: var(--space-md);
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--border), var(--bg));
  position: relative;
}

/* Shimmer placeholder for images */
.card__cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 25%, var(--card-glow) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.card__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.card__title a {
  color: inherit;
  transition: color var(--transition);
}

.card__title a:hover {
  color: var(--interactive);
  text-decoration: none;
}

.card__excerpt {
  color: var(--text-secondary);
  font-size: var(--fs-small);
  line-height: 1.6;
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

/* ---------- Grid layouts ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(460px, 1fr));
  gap: var(--space-lg);
}

@media (max-width: 520px) {
  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ---------- Blog List Page ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-xl);
}

.filter-bar__search {
  flex: 1;
  min-width: 220px;
  padding: 0.65em 1em;
  font-size: var(--fs-body);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.filter-bar__search::placeholder {
  color: var(--text-secondary);
}

.filter-bar__search:focus {
  outline: none;
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 3px var(--glow-secondary);
}

.filter-bar__select {
  padding: 0.65em 1em;
  font-size: var(--fs-small);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.filter-bar__select:focus {
  outline: none;
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 3px var(--glow-secondary);
}

.blog-list-item {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.blog-list-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0%;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
  transition: height 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.blog-list-item:hover::before {
  height: 100%;
}

.blog-list-item:hover {
  transform: translateX(4px);
  box-shadow: 0 8px 30px var(--shadow);
}

.blog-list-item__image {
  flex-shrink: 0;
  width: 200px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--border);
}

.blog-list-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-list-item__body {
  flex: 1;
}

@media (max-width: 640px) {
  .blog-list-item {
    flex-direction: column;
  }

  .blog-list-item__image {
    width: 100%;
    aspect-ratio: 16 / 9;
  }
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.pagination__btn {
  padding: 0.5em 0.9em;
  font-size: var(--fs-small);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text-primary);
  background: var(--bg-card);
  transition: background var(--transition), color var(--transition), transform 0.15s ease;
}

.pagination__btn:hover,
.pagination__btn--active {
  background: var(--accent-primary);
  color: var(--bg);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

/* ---------- Blog Post Single ---------- */
.post-header {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  max-width: 760px;
  margin-inline: auto;
}

.post-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--fs-small);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.post-header__title {
  font-size: var(--fs-h1);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.post-header__subtitle {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--text-secondary);
}

/* Reading progress bar for blog posts */
.reading-progress {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  z-index: 999;
  transition: width 0.05s linear;
  pointer-events: none;
}

.post-cover {
  max-width: 900px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.post-body {
  max-width: 760px;
  margin-inline: auto;
  padding-bottom: var(--space-2xl);
}

.post-body h2 {
  font-size: var(--fs-h2);
  color: var(--accent-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.post-body h3 {
  font-size: var(--fs-h3);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-md);
}

.post-body p {
  margin-bottom: var(--space-md);
}

.post-body ul,
.post-body ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.post-body ul { list-style: disc; }
.post-body ol { list-style: decimal; }

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

.post-body blockquote {
  border-left: 3px solid var(--accent-primary);
  padding-left: var(--space-lg);
  margin-block: var(--space-lg);
  color: var(--text-secondary);
  font-style: italic;
  position: relative;
}

.post-body blockquote::before {
  content: '\201C';
  position: absolute;
  left: var(--space-sm);
  top: -0.4em;
  font-size: 3rem;
  color: var(--accent-primary);
  opacity: 0.2;
}

.post-body code {
  font-family: 'Fira Code', monospace;
  font-size: 0.9em;
  background: var(--bg-card);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

.post-body pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  overflow-x: auto;
  margin-bottom: var(--space-lg);
}

.post-body pre code {
  background: none;
  padding: 0;
}

.post-share {
  display: flex;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
  max-width: 760px;
  margin-inline: auto;
}

.post-share__btn {
  padding: 0.5em 1em;
  font-size: var(--fs-small);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: color var(--transition), border-color var(--transition), transform 0.15s ease;
  position: relative;
  overflow: hidden;
}

.post-share__btn:hover {
  color: var(--interactive);
  border-color: var(--interactive);
  transform: translateY(-1px);
}

/* Related posts */
.related-posts {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: var(--space-2xl);
}

/* ---------- Timeline ---------- */
.timeline-nav {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.timeline-nav__year {
  padding: 0.4em 0.9em;
  font-size: var(--fs-small);
  font-weight: 600;
  border-radius: var(--radius);
  color: var(--text-secondary);
  transition: color var(--transition), background var(--transition), transform 0.15s ease;
}

.timeline-nav__year:hover {
  transform: translateY(-1px);
}

.timeline-nav__year:hover,
.timeline-nav__year--active {
  color: var(--bg);
  background: var(--accent-primary);
  text-decoration: none;
}

.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
}

.timeline__year-label {
  font-size: var(--fs-h2);
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: var(--space-lg);
  position: relative;
}

.timeline__year-label::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) + 4px);
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 10px var(--glow);
}

.event-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.event-card::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) + 5px);
  top: var(--space-lg);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-secondary);
  border: 2px solid var(--bg);
  box-shadow: 0 0 8px var(--glow-secondary);
  transition: box-shadow 0.3s ease;
}

.event-card:hover::before {
  box-shadow: 0 0 16px var(--glow-secondary);
}

.event-card:hover {
  transform: translateX(6px);
  box-shadow: 0 8px 30px var(--shadow);
  border-color: var(--accent-secondary);
}

.event-card__date {
  font-size: var(--fs-xs);
  color: var(--accent-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-xs);
}

.event-card__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.event-card__desc {
  color: var(--text-secondary);
  font-size: var(--fs-small);
}

.event-card__image {
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: var(--space-md);
  aspect-ratio: 16 / 9;
}

.event-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Timeline Category Page ---------- */
.category-hero {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  background: var(--accent-secondary);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.category-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: linear-gradient(transparent, var(--bg));
  pointer-events: none;
}

[data-theme="parchment"] .category-hero {
  color: #EAE2D6;
}

.category-hero__title {
  font-size: var(--fs-h1);
  font-weight: 800;
}

.category-hero__desc {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  opacity: 0.9;
  max-width: 600px;
  margin-top: var(--space-md);
}

/* ---------- Timehop Component ---------- */
.timehop {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.timehop:hover {
  border-color: var(--accent-secondary);
  box-shadow: 0 0 20px var(--glow-secondary);
}

.timehop::before {
  content: '\16A0'; /* Rune ᚠ */
  position: absolute;
  top: -10px;
  right: -10px;
  font-size: 6rem;
  opacity: 0.04;
  color: var(--accent-primary);
  pointer-events: none;
  animation: runeRotate 20s linear infinite;
}

.timehop__label {
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-secondary);
  margin-bottom: var(--space-sm);
}

.timehop__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.timehop__date {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.timehop__excerpt {
  color: var(--text-secondary);
  font-size: var(--fs-small);
}

/* ---------- About Page ---------- */
.about-hero {
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  display: flex;
  gap: var(--space-xl);
  align-items: center;
  flex-wrap: wrap;
}

.about-hero__image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--accent-primary);
  flex-shrink: 0;
  background: var(--bg-card);
  position: relative;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.about-hero__image:hover {
  border-color: var(--interactive);
  box-shadow: 0 0 30px var(--glow);
}

/* Animated border orbit */
.about-hero__image::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px dashed var(--accent-secondary);
  opacity: 0.3;
  animation: orbitSpin 15s linear infinite;
}

@keyframes orbitSpin {
  to { transform: rotate(360deg); }
}

.about-hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-hero__text {
  flex: 1;
  min-width: 280px;
}

.about-hero__name {
  font-size: var(--fs-h1);
  font-weight: 800;
}

.about-hero__bio-short {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--text-secondary);
  margin-top: var(--space-sm);
}

.about-section {
  padding-block: var(--space-xl);
}

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

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.testimonial {
  background: var(--bg-card);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.testimonial:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 20px var(--shadow);
}

.testimonial::before {
  content: '\201C';
  position: absolute;
  top: -0.2em;
  left: var(--space-md);
  font-size: 4rem;
  color: var(--accent-primary);
  opacity: 0.08;
  pointer-events: none;
}

.testimonial__text {
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.testimonial__author {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--accent-primary);
}

/* ---------- 404 Page ---------- */
.error-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--accent-secondary);
  color: #fff;
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
}

[data-theme="parchment"] .error-page {
  color: #EAE2D6;
}

.error-page__code {
  font-size: clamp(5rem, 15vw, 10rem);
  font-weight: 900;
  opacity: 0.15;
  line-height: 1;
  position: absolute;
  pointer-events: none;
}

.error-page__message {
  font-size: var(--fs-h2);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  max-width: 400px;
}

.error-page__rune {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  opacity: 0.6;
}

.error-page .btn {
  background: var(--accent-primary);
  color: var(--bg);
}

.error-page .btn:hover {
  background: var(--interactive);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-footer);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border);
  transition: background var(--transition);
  position: relative;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

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

.footer__link {
  color: var(--text-secondary);
  font-size: var(--fs-small);
  position: relative;
}

.footer__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--interactive);
  transition: width 0.3s ease;
}

.footer__link:hover {
  color: var(--interactive);
  text-decoration: none;
}

.footer__link:hover::after {
  width: 100%;
}

.footer__copy {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

.footer__easter-egg {
  font-size: var(--fs-xs);
  font-family: 'Fira Code', monospace;
  color: var(--text-secondary);
  opacity: 0.5;
  cursor: default;
  transition: opacity var(--transition), color var(--transition);
}

.footer__easter-egg:hover {
  opacity: 1;
  color: var(--interactive);
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Scroll reveal states */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-animate].animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
[data-animate].animate-in:nth-child(2) { transition-delay: 0.1s; }
[data-animate].animate-in:nth-child(3) { transition-delay: 0.2s; }
[data-animate].animate-in:nth-child(4) { transition-delay: 0.3s; }
[data-animate].animate-in:nth-child(5) { transition-delay: 0.4s; }
[data-animate].animate-in:nth-child(6) { transition-delay: 0.5s; }

/* ---------- Magnetic Element ---------- */
.magnetic {
  transition: transform 0.2s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Typewriter cursor after typing finishes ---------- */
.typewriter-done .cursor {
  animation: blink 1s step-end infinite;
}

/* ---------- Page top padding (non-hero pages) ---------- */
.page-top {
  padding-top: calc(var(--nav-height) + var(--space-xl));
}

/* ---------- Accessibility: Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .cursor-glow,
  .canvas-bg,
  .hero__rune-float {
    display: none !important;
  }
  [data-animate] {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Print ---------- */
@media print {
  .nav, .footer, .theme-toggle, .scroll-progress, .cursor-glow, .canvas-bg { display: none; }
  body { background: #fff; color: #000; }
}