@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;1,400&family=JetBrains+Mono:ital,wght@0,400;1,400&family=Saira+Condensed:wght@400&display=swap');

/* ============================================
   DESIGN TOKENS (Bugatti System)
   ============================================ */

:root {
  /* Colors */
  --color-canvas: #000000;
  --color-surface-soft: #0d0d0d;
  --color-surface-card: #141414;
  --color-surface-elevated: #1f1f1f;
  --color-hairline: #262626;
  --color-hairline-strong: #3a3a3a;
  --color-on-dark: #ffffff;
  --color-body: #cccccc;
  --color-body-strong: #e6e6e6;
  --color-muted: #999999;
  --color-muted-soft: #666666;
  --color-link: #c3d9f3;
  --color-warning: #d4a017;
  --color-success: #5fa657;

  /* Typography */
  --font-display: 'Saira Condensed', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Cormorant Garamond', Garamond, 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', 'Cascadia Mono', monospace;

  /* Spacing */
  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 40px;
  --spacing-xxl: 64px;
  --spacing-section: 120px;

  /* Border Radius */
  --radius-none: 0px;
  --radius-pill: 9999px;
  --radius-full: 9999px;

  /* Max Width */
  --max-width: 1280px;
}

/* ============================================
   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 {
  background-color: var(--color-canvas);
  color: var(--color-body);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  font-size: 1rem;
  overflow-x: hidden;
}

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

a {
  color: var(--color-link);
  text-decoration: underline;
  transition: opacity 0.2s ease-out;
}

a:hover {
  opacity: 0.8;
}

a:focus-visible {
  outline: 1px solid var(--color-on-dark);
  outline-offset: 2px;
}

/* Skip-to-content link */
.skip-link {
  position: absolute;
  top: -9999px;
  left: var(--spacing-md);
  z-index: 9999;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-link);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  transition: top 0.2s ease-out;
}

.skip-link:focus {
  top: var(--spacing-md);
}

ul,
ol {
  list-style: none;
}

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

.display-xl {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 4rem;
  line-height: 1.1;
  letter-spacing: 0.25rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  text-wrap: balance;
}

.display-lg {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 3rem;
  line-height: 1.15;
  letter-spacing: 0.1875rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  text-wrap: balance;
}

.display-md {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  text-wrap: balance;
}

.display-sm {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.3;
  letter-spacing: 0.09375rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  text-wrap: balance;
}

.title-md {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.25rem;
  line-height: 1.3;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
}

.title-sm {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.3;
  letter-spacing: 0.09375rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
}

.caption-uppercase {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.6875rem;
  line-height: 1.4;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-muted);
}

.body-md {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--color-body);
  text-wrap: pretty;
}

.body-lg {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.125rem;
  line-height: 1.6;
  letter-spacing: 0;
  color: var(--color-body-strong);
  text-wrap: pretty;
}

.body-sm {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--color-muted);
  text-wrap: pretty;
}

.nav-link {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.75rem;
  line-height: 1.4;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  text-decoration: none;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1;
  letter-spacing: 0.375rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  text-decoration: none;
}

/* ============================================
   LAYOUT
   ============================================ */

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

.section {
  padding: var(--spacing-section) 0;
}

.section + .section {
  border-top: 1px solid var(--color-hairline);
}

/* ============================================
   BUTTON
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1;
  letter-spacing: 0.15625rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  background: transparent;
  border: 1px solid var(--color-on-dark);
  border-radius: var(--radius-pill);
  padding: 0.875rem 2rem;
  min-height: 44px;
  text-decoration: none;
  transition: background-color 0.2s ease-out, color 0.2s ease-out, transform 0.1s ease-out;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--color-on-dark);
  color: var(--color-canvas);
  border-color: var(--color-on-dark);
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

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

.btn-secondary:hover {
  background-color: var(--color-link);
  color: var(--color-canvas);
  border-color: var(--color-link);
}

.btn-disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* ============================================
   CARD
   ============================================ */

.card {
  background-color: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-none);
  padding: var(--spacing-lg);
  transition: border-color 0.2s ease-out;
}

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

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-link:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* ============================================
   TAG / CAPTION
   ============================================ */

.tag {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.6875rem;
  line-height: 1.4;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-muted);
  background: none;
  border: none;
}

.date-pill {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.6875rem;
  line-height: 1.4;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* ============================================
   CATEGORY TAG COLORS
   ============================================ */

.tag-development {
  color: var(--color-link);
}

.tag-security {
  color: var(--color-warning);
}

.tag-infrastructure {
  color: var(--color-success);
}

.tag-lifelessons {
  color: var(--color-link);
}

/* ============================================
   SECTION HEADING
   ============================================ */

.section-heading {
  position: relative;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
}

.section-heading::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--color-link);
}

/* ============================================
   HAIRLINE DIVIDER
   ============================================ */

.hairline {
  border: none;
  height: 1px;
  background-color: var(--color-hairline);
}

/* ============================================
   HERO PHOTO BAND
   ============================================ */

.hero-band {
  position: relative;
  width: 100%;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.1) 40%,
    rgba(0, 0, 0, 0.5) 100%
  );
  z-index: 1;
}

.hero-band-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 6rem 2rem;
}

.hero-band-content .caption-uppercase {
  margin-top: var(--spacing-md);
}

.hero-band-content .btn {
  margin-top: var(--spacing-xxl);
}

/* ============================================
   HERO GLOW ANIMATION
   ============================================ */

@keyframes hero-glow-pulse {
  0%, 100% {
    opacity: 0.25;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1.08);
  }
}

.hero-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  width: 450px;
  height: 250px;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse, var(--color-link) 0%, transparent 60%);
  opacity: 0.3;
  animation: hero-glow-pulse 8s ease-in-out infinite;
  pointer-events: none;
  z-index: 2;
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

/* ============================================
   TIMELINE
   ============================================ */

.timeline {
  position: relative;
  padding-left: var(--spacing-xxl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background-color: var(--color-hairline);
}

.timeline-entry {
  position: relative;
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--color-hairline);
}

.timeline-entry:last-child {
  border-bottom: none;
}

.timeline-entry::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--spacing-xxl));
  top: calc(var(--spacing-lg) + 0.5rem);
  width: 9px;
  height: 9px;
  background-color: var(--color-link);
  border-radius: 50%;
}

.timeline-date {
  margin-bottom: var(--spacing-xs);
}

.timeline-title {
  margin-bottom: var(--spacing-xs);
}

.timeline-company {
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   SKILL CATEGORY
   ============================================ */

.skill-category {
  margin-bottom: var(--spacing-xxl);
}

.skill-category-title {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-hairline);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-tag {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.75rem;
  line-height: 1;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-body);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-none);
  padding: var(--spacing-xs) var(--spacing-md);
  transition: border-color 0.2s ease-out;
}

.skill-tag:hover {
  border-color: var(--color-link);
  color: var(--color-link);
}

/* ============================================
   BLOG / PROJECT CARD IMAGE
   ============================================ */

.card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-surface-soft);
}

.card-image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-surface-soft) 0%, var(--color-surface-card) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  transition: color 0.2s ease-out;
}

.card:hover .card-image-placeholder {
  color: var(--color-link);
}

.card-image-placeholder.theme-secrets {
  background: linear-gradient(135deg, #0a1628 0%, #0d2137 30%, #0e3a5c 60%, #1a5276 100%);
}

.card-image-placeholder.theme-infrastructure {
  background: linear-gradient(135deg, #1a1400 0%, #2d1f00 30%, #4a3200 60%, #6b4a00 100%);
}

.card-image-placeholder.theme-cybersecurity {
  background: linear-gradient(135deg, #0a1a0a 0%, #0d2d1a 30%, #0f3d25 60%, #1a5c3a 100%);
}

.card-image-placeholder.theme-development {
  background: linear-gradient(135deg, #0f0a1a 0%, #1a0d2d 30%, #2d0f4a 60%, #3d1a6b 100%);
}

/* ============================================
   BLOG POST CONTENT
   ============================================ */

.post-content {
  max-width: 720px;
  margin: 0 auto;
}

.post-content h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.3;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-md);
}

.post-content h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.25rem;
  line-height: 1.3;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-md);
}

.post-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--color-body-strong);
}

.post-content a {
  color: var(--color-link);
}

.post-content ul,
.post-content ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.post-content ul {
  list-style: disc;
}

.post-content ol {
  list-style: decimal;
}

.post-content li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-body-strong);
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-surface-card);
  padding: 0.125em 0.375em;
  border-radius: var(--radius-none);
}

.post-content pre {
  background-color: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  padding: var(--spacing-lg);
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
}

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

.post-content blockquote {
  border-left: 1px solid var(--color-hairline-strong);
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  color: var(--color-muted);
  font-style: italic;
}

.post-content hr {
  border: none;
  height: 1px;
  background-color: var(--color-hairline);
  margin: var(--spacing-xxl) 0;
}

.post-content img {
  margin-bottom: var(--spacing-lg);
}

.post-content figure {
  margin-bottom: var(--spacing-lg);
}

.post-content figcaption {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1.4;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-muted);
  text-align: center;
  margin-top: var(--spacing-xs);
}

.post-content h4 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.125rem;
  line-height: 1.3;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
  border-left: 2px solid var(--color-link);
}

.post-content h5 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.3;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-body-strong);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-md);
}

.post-content h6 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.875rem;
  line-height: 1.3;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-md);
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
}

.post-content thead th {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.8125rem;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  background-color: var(--color-surface-elevated);
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 2px solid var(--color-hairline-strong);
}

.post-content tbody td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-hairline);
  color: var(--color-body-strong);
  vertical-align: top;
}

.post-content tbody tr:nth-child(even) {
  background-color: var(--color-surface-card);
}

.post-content kbd {
  font-family: var(--font-mono);
  font-size: 0.8em;
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-hairline-strong);
  border-radius: 2px;
  padding: 0.125em 0.375em;
  color: var(--color-body-strong);
}

.post-content mark {
  background-color: color-mix(in srgb, var(--color-link) 15%, transparent);
  color: var(--color-on-dark);
  padding: 0.125em 0.25em;
  border-radius: 2px;
}

.post-content details {
  border: 1px solid var(--color-hairline);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  background-color: var(--color-surface-soft);
}

.post-content details summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-body-strong);
  padding-bottom: var(--spacing-xs);
}

.post-content details summary:hover {
  color: var(--color-link);
}

.post-content details[open] summary {
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: var(--spacing-sm);
}

/* ============================================
   POST LAYOUT & TABLE OF CONTENTS
   ============================================ */

.post-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xxl);
  max-width: 720px;
  margin: 0 auto;
}

.post-toc-desktop {
  display: none;
}

.post-toc-mobile {
  display: block;
}

.post-toc-mobile details {
  border: 1px solid var(--color-hairline);
  background-color: var(--color-surface-soft);
}

.post-toc-mobile summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.875rem;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-body-strong);
  padding: var(--spacing-md);
  transition: color 0.2s ease-out;
}

.post-toc-mobile summary:hover {
  color: var(--color-link);
}

.post-toc-mobile nav ul {
  list-style: none;
  padding: 0 var(--spacing-md) var(--spacing-md);
  margin: 0;
}

.post-toc-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--spacing-md);
}

.toc-item {
  margin-bottom: var(--spacing-xs);
}

.toc-item a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: color 0.2s ease-out;
  display: block;
  padding: 0.25em 0;
}

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

.toc-item--h3 {
  padding-left: var(--spacing-md);
}

@media (min-width: 1024px) {
  .post-layout {
    grid-template-columns: 1fr 200px;
    align-items: start;
  }

  .post-toc-desktop {
    display: block;
    position: sticky;
    top: 80px;
  }

  .post-toc-desktop nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .post-toc-desktop .toc-item a {
    font-size: 0.75rem;
  }

  .post-toc-desktop .toc-item--h3 {
    padding-left: var(--spacing-md);
  }

  .post-toc-mobile {
    display: none;
  }
}

/* ============================================
   PROJECT DETAIL
   ============================================ */

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xxl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-hairline);
}

.project-meta-item {
  min-width: 160px;
}

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

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xxl);
}

.project-content {
  max-width: 800px;
}

.project-content h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.3;
  letter-spacing: 0.0625rem;
  text-transform: uppercase;
  color: var(--color-on-dark);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-md);
}

.project-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--color-body-strong);
}

/* ============================================
   MOBILE NAV TOGGLE
   ============================================ */

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 110;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--color-on-dark);
  transition: transform 0.2s ease-out, opacity 0.2s ease-out;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .display-xl {
    font-size: 2rem;
    letter-spacing: 0.125rem;
  }

  .display-lg {
    font-size: 1.75rem;
    letter-spacing: 0.125rem;
  }

  .display-md {
    font-size: 1.5rem;
  }

  .display-sm {
    font-size: 1.25rem;
  }

  .title-md {
    font-size: 1.125rem;
  }

  .section {
    padding: var(--spacing-xxl) 0;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    padding: var(--spacing-lg) var(--spacing-xl);
    gap: var(--spacing-md);
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.2s ease-out;
  }

  .nav-menu.open {
    max-height: 400px;
    opacity: 1;
  }

  .nav-backdrop {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 95;
    opacity: 0;
    transition: opacity 0.3s ease-out;
    pointer-events: none;
  }

  .nav-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
  }

  .timeline {
    padding-left: var(--spacing-xl);
  }

  .timeline-entry::before {
    left: calc(-1 * var(--spacing-xl));
  }

  .project-meta {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .project-meta-item {
    min-width: auto;
  }

  .hero-band-content {
    padding: 4rem 1.5rem;
  }
}

/* ============================================
   UTILITY CLASSES (Code Quality — 7a)
   ============================================ */

/* Page back link */
.page-back-link {
  margin-bottom: var(--spacing-xl);
  display: inline-block;
}

/* Section subtitle (caption with color) */
.section-subtitle {
  margin-bottom: var(--spacing-xxl);
  color: var(--color-link);
}

/* Section subheading with divider */
.section-subheading {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-hairline);
}

/* Max width utilities */
.max-width-800 {
  max-width: 800px;
}

/* Hero utilities */
.hero-band-gradient {
  background: linear-gradient(135deg, #0a0a0a 0%, #000000 50%, #050505 100%);
}

.hero-band-subtitle {
  margin-top: var(--spacing-md);
}

.hero-band-body {
  margin-top: var(--spacing-xl);
  margin-left: auto;
  margin-right: auto;
  max-width: 600px;
}

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

/* Scroll indicator at bottom of hero */
@keyframes scroll-bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(8px);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: scroll-bounce 2s ease-in-out infinite;
  opacity: 1;
  transition: opacity 0.4s ease-out;
  pointer-events: none;
}

.scroll-indicator.hidden {
  opacity: 0;
}

.scroll-indicator svg {
  color: var(--color-link);
}

.scroll-indicator-text {
  color: var(--color-muted);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

@media (prefers-reduced-motion: reduce) {
  .scroll-indicator {
    animation: none;
    opacity: 1;
  }
  .scroll-indicator.hidden {
    opacity: 1;
  }
}

/* Flex utilities */
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.flex-wrap {
  display: flex;
  flex-wrap: wrap;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.flex-row-wrap {
  display: flex;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

/* Grid utilities */
.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  max-width: 1000px;
}

/* Card content utilities */
.card-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
}

.card-meta-inline {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.card-title {
  margin-bottom: var(--spacing-sm);
}

.card-description {
  margin-bottom: var(--spacing-md);
}

.card-content {
  margin-top: var(--spacing-lg);
}

.card-content .skill-list {
  gap: var(--spacing-xs);
}

.card-date {
  margin-bottom: var(--spacing-sm);
}

.card-image-fill {
  width: 100%;
  height: 100%;
  min-height: 240px;
}

/* Button icon spacing */
.btn svg {
  margin-right: var(--spacing-xs);
}

/* Pagination */
.pagination-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

.pagination-counter {
  color: var(--color-muted);
  min-width: 80px;
  text-align: center;
}

/* Skill tag color variants */
.skill-tag--link {
  border-color: var(--color-link) !important;
  color: var(--color-link) !important;
}

.skill-tag--warning {
  border-color: var(--color-warning) !important;
  color: var(--color-warning) !important;
}

.skill-tag--success {
  border-color: var(--color-success) !important;
  color: var(--color-success) !important;
}

.skill-tag--body {
  border-color: var(--color-body) !important;
  color: var(--color-body) !important;
}

/* Section heading color variants */
.section-subheading--link {
  border-bottom-color: var(--color-link);
}

.section-subheading--warning {
  border-bottom-color: var(--color-warning);
}

.section-subheading--success {
  border-bottom-color: var(--color-success);
}

.section-subheading--body {
  border-bottom-color: var(--color-body);
}

.section-subheading--hairline {
  border-bottom-color: var(--color-hairline);
}

/* Focus area color variants */
.focus-color--link {
  color: var(--color-link);
}

.focus-color--warning {
  color: var(--color-warning);
}

.focus-color--success {
  color: var(--color-success);
}

/* Focus area ambient glows */
.focus-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 200px;
  transform: translate(-50%, -50%);
  opacity: 0.2;
  pointer-events: none;
  z-index: 0;
  animation: hero-glow-pulse 8s ease-in-out infinite;
}

.focus-glow--link {
  background: radial-gradient(ellipse, var(--color-link) 0%, transparent 60%);
}

.focus-glow--warning {
  background: radial-gradient(ellipse, var(--color-warning) 0%, transparent 60%);
}

.focus-glow--success {
  background: radial-gradient(ellipse, var(--color-success) 0%, transparent 60%);
}

/* Focus column wrapper */
.focus-column {
  position: relative;
  display: block;
  cursor: pointer;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius);
  padding: var(--spacing-xl);
  transition: border-color 0.2s ease-out;
  text-decoration: none;
  color: inherit;
}

.focus-column:hover {
  border-color: var(--color-link);
}

.focus-column:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .focus-column {
    transition: none;
  }
}

/* Scroll-triggered entrance animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}

.animate-delay-0 { transition-delay: 0s; }
.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }

/* Body strong color */
.body-strong {
  color: var(--color-body-strong);
}

/* Info column */
.info-item {
  margin-bottom: var(--spacing-xl);
}

.info-label {
  margin-bottom: var(--spacing-xs);
  color: var(--color-muted);
}

.info-text {
  color: var(--color-body-strong);
}

.info-description {
  margin-bottom: var(--spacing-xl);
  color: var(--color-body);
  line-height: 1.7;
}

/* Form utilities */
.form-field {
  margin-bottom: var(--spacing-lg);
}

.form-field--xl {
  margin-bottom: var(--spacing-xl);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-body-strong);
}

.form-input {
  width: 100%;
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-hairline);
  color: var(--color-on-dark);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  min-height: 44px;
  transition: border-color 0.2s ease-out;
}

.form-input:focus {
  border-color: var(--color-link);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Alert utilities */
.alert {
  background-color: var(--color-surface-elevated);
  border: 1px solid;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.alert-success {
  border-color: var(--color-success);
}

.alert-warning {
  border-color: var(--color-warning);
}

.alert-success .body-md {
  color: var(--color-success);
}

.alert-warning .body-md {
  color: var(--color-warning);
}

/* Timeline description */
.timeline-description {
  margin-bottom: var(--spacing-md);
}

/* Timeline bullet points */
.timeline-bullets {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
  list-style: disc;
}

.timeline-bullets li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-body);
  line-height: var(--line-height-base);
}

.timeline-bullets li:last-child {
  margin-bottom: 0;
}

/* Project feature list */
.feature-item {
  margin-bottom: var(--spacing-sm);
}

/* Button disabled state */
.btn--disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* Featured project */
.featured-project-wrapper {
  width: 100%;
  max-width: 100%;
  margin-bottom: var(--spacing-xxl);
}

.featured-section-title {
  color: var(--color-link);
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.125rem;
}

.featured-project {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  background-color: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  padding: var(--spacing-xl);
  transition: border-color 0.2s ease-out;
}

.featured-project:hover {
  border-color: var(--color-link);
}

.featured-project-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
}

.featured-project-image {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.featured-project-title {
  margin-bottom: var(--spacing-md);
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
  text-wrap: auto;
}

.featured-project-description {
  margin-bottom: var(--spacing-lg);
  color: var(--color-body);
  line-height: 1.7;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
  text-wrap: auto;
}

.featured-project-cta {
  color: var(--color-link);
  margin-bottom: var(--spacing-xl);
}

.featured-project-skill-list {
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .featured-project {
    grid-template-columns: 1fr;
    padding: var(--spacing-md);
    gap: var(--spacing-md);
    max-width: 100%;
    word-break: break-word;
  }

  .featured-project-image {
    order: -1;
  }
}

/* About paragraphs */
.about-paragraph {
  margin-bottom: var(--spacing-lg);
  color: var(--color-body-strong);
}

.about-paragraph--xl {
  margin-bottom: var(--spacing-xxl);
  color: var(--color-body-strong);
}

/* Skill list wrapper */
.skill-list-wrapper {
  margin-bottom: var(--spacing-xxl);
}

/* Social links section */
.social-links-section {
  margin-top: var(--spacing-md);
}

/* Cursor pointer utility */
.cursor-pointer {
  cursor: pointer;
}

.focus-visible-pointer:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* Button opacity for loading state */
.btn--loading {
  opacity: 0.6;
}

/* Post meta row */
.post-meta-row {
  margin-bottom: var(--spacing-md);
}

/* Section link */
.section-link-wrapper {
  margin-top: var(--spacing-xl);
  text-align: center;
}

/* Legal page anchor nav */
.legal-nav {
  margin-bottom: var(--spacing-xxl);
}

.legal-nav-separator {
  color: var(--color-hairline);
}

/* Back button wrapper */
.back-btn-wrapper {
  margin-top: var(--spacing-xxl);
}

.section-link {
  color: var(--color-link);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.125rem;
  text-decoration: none;
  transition: color 0.2s ease-out;
}

.section-link:hover {
  color: var(--color-on-dark);
}

.section-link:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* ============================================
    STATS BAR
    ============================================ */

.stats-bar {
  padding: var(--spacing-xl) 0;
}

.stats-bar-inner {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: var(--spacing-lg);
  max-width: 580px;
  margin: 0 auto;
}

.stat-item {
  flex: 0 0 auto;
  width: 260px;
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-none);
  transition: border-color 0.3s ease;
}

.stat-item:hover {
  border-color: var(--color-hairline-strong);
}

.stat-item:last-child {
  border-right: 1px solid var(--color-hairline);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--color-on-dark);
  margin-bottom: var(--spacing-xs);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.6875rem;
  line-height: 1.4;
  letter-spacing: 0.125rem;
  text-transform: uppercase;
  color: var(--color-muted);
}

@media (max-width: 640px) {
  .stats-bar-inner {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }

  .stat-item {
    flex: 1 1 calc(50% - var(--spacing-md) / 2);
    min-width: 0;
    width: auto;
  }
}

/* ============================================
    CTA BAND
    ============================================ */

.cta-band {
  text-align: center;
  padding-top: var(--spacing-xxl);
  border-top: 1px solid var(--color-hairline);
}

.cta-band-body {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

/* ============================================
    REDUCED MOTION
    ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   PRINT
   ============================================ */

/* ============================================
   404 PAGE
   ============================================ */

.page-404-wrapper {
  text-align: center;
  padding: var(--spacing-xxl) 0;
}

.page-404-code {
  margin-bottom: var(--spacing-md);
}

.page-404-subtitle {
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
}

.page-404-description {
  max-width: 500px;
  margin: 0 auto var(--spacing-xxl);
  color: var(--color-body);
}

@media print {
  body {
    background-color: #fff;
    color: #000;
  }

  .nav,
  .footer,
  .btn {
    display: none;
  }
}