/* ============================================
   markjennings.cloud — Design System
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --- Custom Properties --- */
:root {
  /* Colour Palette */
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2035;
  --bg-card: rgba(17, 24, 39, 0.6);
  --bg-glass: rgba(17, 24, 39, 0.4);

  --text-primary: #f0f4fc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #3b82f6;
  --accent-secondary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #3b82f6, #06b6d4);
  --accent-gradient-hover: linear-gradient(135deg, #2563eb, #0891b2);
  --accent-glow: rgba(59, 130, 246, 0.3);
  --accent-glow-strong: rgba(59, 130, 246, 0.5);

  --border-subtle: rgba(148, 163, 184, 0.1);
  --border-accent: rgba(59, 130, 246, 0.3);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 4rem);
  --container-max: 1200px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent-secondary);
}

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

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
}

::selection {
  background: var(--accent-primary);
  color: var(--text-primary);
}

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 2rem;
  transition: all var(--transition-medium);
  backdrop-filter: blur(0px);
}

.nav.scrolled {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 2rem;
}

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

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav-logo span {
  font-weight: 400;
  opacity: 0.7;
}

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

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 1px;
  transition: width var(--transition-medium);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: var(--section-padding);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08), transparent 70%);
  animation: pulse-glow 8s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.06), transparent 70%);
  animation: pulse-glow 10s ease-in-out infinite reverse;
}

@keyframes pulse-glow {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 750px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--accent-secondary);
  font-weight: 500;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.hero h1 .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-weight: 400;
}

.hero-typing {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--accent-secondary);
  margin-bottom: 2rem;
  min-height: 1.5em;
}

.hero-typing .cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent-secondary);
  margin-left: 2px;
  animation: cursor-blink 0.8s steps(1) infinite;
  vertical-align: text-bottom;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 580px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  box-shadow: 0 6px 30px var(--accent-glow-strong);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* --- Section Shared Styles --- */
section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* --- About Section --- */
.about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: all var(--transition-fast);
}

.stat-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.about-image-area {
  position: relative;
}

.about-image-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.about-image-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
}

.about-code-block {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 2;
}

.about-code-block .line {
  display: flex;
  gap: 0.75rem;
}

.about-code-block .key {
  color: var(--accent-secondary);
}

.about-code-block .value {
  color: var(--text-secondary);
}

.about-code-block .string {
  color: #22c55e;
}

.about-code-block .bracket {
  color: var(--text-muted);
}

/* --- Skills Section --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: all var(--transition-medium);
}

.skill-category:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.skill-category-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.skill-category h3 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  padding: 0.35rem 0.85rem;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: rgba(59, 130, 246, 0.15);
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

/* --- Experience Section --- */
.experience {
  background: var(--bg-secondary);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 64px;
  margin-bottom: 3rem;
}

.timeline-dot {
  position: absolute;
  left: 16px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-primary);
  z-index: 1;
  transition: all var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent-primary);
  box-shadow: 0 0 20px var(--accent-glow);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-secondary);
  margin-bottom: 0.5rem;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  backdrop-filter: blur(10px);
  transition: all var(--transition-fast);
}

.timeline-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.timeline-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.timeline-card .company {
  color: var(--accent-primary);
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.timeline-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.timeline-card .tech-used {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.timeline-card .tech-badge {
  padding: 0.2rem 0.6rem;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-secondary);
}

/* --- Projects Section --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-medium);
  backdrop-filter: blur(10px);
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.project-card-header {
  padding: 2rem 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.project-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

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

.project-links a {
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: color var(--transition-fast);
}

.project-links a:hover {
  color: var(--accent-primary);
}

.project-card-body {
  padding: 1.25rem 2rem 2rem;
}

.project-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.project-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tech span {
  padding: 0.2rem 0.6rem;
  background: rgba(59, 130, 246, 0.08);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Blog Section --- */
.blog {
  background: var(--bg-secondary);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-medium);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.blog-card-image {
  height: 180px;
  background: var(--bg-tertiary);
  position: relative;
  overflow: hidden;
}

.blog-card-image .blog-category {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.3rem 0.8rem;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
}

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

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  transition: color var(--transition-fast);
}

.blog-card:hover h3 {
  color: var(--accent-primary);
}

.blog-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex: 1;
}

.blog-card-footer {
  padding: 0 1.5rem 1.5rem;
}

.read-more {
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.read-more .arrow {
  transition: transform var(--transition-fast);
}

.blog-card:hover .read-more .arrow {
  transform: translateX(4px);
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  color: var(--text-secondary);
}

.contact-link:hover {
  border-color: var(--border-accent);
  background: rgba(59, 130, 246, 0.05);
  color: var(--text-primary);
  transform: translateX(4px);
}

.contact-link-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.form-submit {
  width: 100%;
}

/* --- Footer --- */
.footer {
  padding: 2rem;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

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

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

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  color: var(--accent-primary);
  transform: translateY(-2px);
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all var(--transition-slow);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all var(--transition-slow);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* --- Staggered Animation Delays --- */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* --- Divider --- */
.section-divider {
  width: 60px;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: 2px;
  margin: 0 auto 2rem;
}

/* --- Grid Background --- */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    padding: 1.5rem 2rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border-subtle);
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .footer-inner {
    flex-direction: column;
    gap: 1rem;
  }

  .timeline::before {
    left: 16px;
  }

  .timeline-item {
    padding-left: 48px;
  }

  .timeline-dot {
    left: 8px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }
}

/* --- Blog Page Styles --- */
.blog-page-header {
  padding: 8rem 2rem 3rem;
  background: var(--bg-secondary);
}

.blog-page-header .container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.blog-main {
  padding: 3rem 2rem;
}

.blog-main .container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.blog-listing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

/* --- Blog Post Styles --- */
.post-header {
  padding: 8rem 2rem 3rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.post-header .container {
  max-width: 800px;
  margin: 0 auto;
}

.post-header .back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  transition: color var(--transition-fast);
}

.post-header .back-link:hover {
  color: var(--accent-primary);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.post-meta .category-badge {
  padding: 0.3rem 0.8rem;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
}

.post-content {
  padding: 3rem 2rem;
}

.post-content .container {
  max-width: 800px;
  margin: 0 auto;
}

.post-body {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.9;
}

.post-body h2 {
  color: var(--text-primary);
  font-size: 1.6rem;
  margin: 2.5rem 0 1rem;
}

.post-body h3 {
  color: var(--text-primary);
  font-size: 1.3rem;
  margin: 2rem 0 0.75rem;
}

.post-body p {
  margin-bottom: 1.25rem;
}

.post-body a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-body ul, .post-body ol {
  margin: 1rem 0 1.25rem 1.5rem;
}

.post-body li {
  margin-bottom: 0.5rem;
}

.post-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-tertiary);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.post-body pre {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.88rem;
  line-height: 1.7;
}

.post-body blockquote {
  border-left: 3px solid var(--accent-primary);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--text-muted);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

.post-tags span {
  padding: 0.3rem 0.8rem;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--text-secondary);
}