/* ========================================
   PRATYUSH PANDEY - Personal Website
   Modern Theme Design System with Light/Dark Mode
   ======================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors - Dark Theme (Default) */
  --color-bg: #0a0a0a;
  --color-bg-elevated: #111111;
  --color-bg-card: #161616;
  --color-border: rgba(255, 255, 255, 0.08);

  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1a1;
  --color-text-muted: #666666;

  --color-accent: #6366f1;
  --color-accent-hover: #818cf8;
  --color-accent-subtle: rgba(99, 102, 241, 0.1);

  /* Nav background for dark mode */
  --nav-bg-scrolled: rgba(10, 10, 10, 0.9);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;

  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --font-size-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1rem + 1.25vw, 1.75rem);
  --font-size-2xl: clamp(1.75rem, 1.25rem + 2.5vw, 2.5rem);
  --font-size-3xl: clamp(2.5rem, 1.5rem + 5vw, 4rem);
  --font-size-hero: clamp(3rem, 2rem + 6vw, 6rem);

  --line-height-tight: 1.1;
  --line-height-snug: 1.3;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

  --letter-spacing-tight: -0.03em;
  --letter-spacing-normal: -0.01em;
  --letter-spacing-wide: 0.05em;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --space-section: clamp(4rem, 8vw, 8rem);

  /* Layout */
  --container-max: 1200px;
  --container-content: 800px;
  --container-narrow: 600px;

  /* Effects */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-smooth: 600ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
}

/* ---------- Light Theme ---------- */
[data-theme="light"] {
  --color-bg: #fafafa;
  --color-bg-elevated: #ffffff;
  --color-bg-card: #ffffff;
  --color-border: rgba(0, 0, 0, 0.08);

  --color-text-primary: #111111;
  --color-text-secondary: #555555;
  --color-text-muted: #888888;

  --color-accent: #4f46e5;
  --color-accent-hover: #6366f1;
  --color-accent-subtle: rgba(79, 70, 229, 0.08);

  --nav-bg-scrolled: rgba(250, 250, 250, 0.9);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.12);
}

/* Smooth theme transition */
body,
.nav,
.project-card,
.skill-category,
.project-showcase,
.social-link,
.contact-link,
.btn {
  transition: background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

/* ---------- Theme Toggle Button ---------- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--color-accent);
  transform: scale(1.05);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.theme-toggle:hover svg {
  color: var(--color-text-primary);
}

/* Icon visibility based on theme */
.theme-toggle .icon-sun {
  display: none;
}

.theme-toggle .icon-moon {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

/* Nav actions container */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  letter-spacing: var(--letter-spacing-normal);
  overflow-x: hidden;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

/* ---------- Typography ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

p {
  color: var(--color-text-secondary);
}

strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.section-title {
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg) 0;
  transition: all var(--transition-base);
  background: transparent;
}

.nav.scrolled {
  background: var(--nav-bg-scrolled);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}

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

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

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

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

/* ---------- Mobile Menu Toggle ---------- */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  margin: 3px 0;
  transition: all var(--transition-base);
  border-radius: 2px;
}

/* Hamburger to X animation */
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu Overlay */
.nav-links.mobile-open {
  display: flex !important;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  padding: 100px var(--space-xl) var(--space-xl);
  gap: 0;
  z-index: 999;
  animation: fadeIn 0.3s ease;
}

.nav-links.mobile-open li {
  opacity: 0;
  animation: slideInRight 0.4s ease forwards;
}

.nav-links.mobile-open li:nth-child(1) {
  animation-delay: 0.1s;
}

.nav-links.mobile-open li:nth-child(2) {
  animation-delay: 0.15s;
}

.nav-links.mobile-open li:nth-child(3) {
  animation-delay: 0.2s;
}

.nav-links.mobile-open li:nth-child(4) {
  animation-delay: 0.25s;
}

.nav-links.mobile-open li:nth-child(5) {
  animation-delay: 0.3s;
}

.nav-links.mobile-open li:nth-child(6) {
  animation-delay: 0.35s;
}

.nav-links.mobile-open a {
  display: block;
  font-size: var(--font-size-2xl);
  font-family: var(--font-display);
  font-weight: 600;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.nav-links.mobile-open a:hover {
  color: var(--color-accent);
}

.nav-links.mobile-open a::after {
  display: none;
}

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

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
}

.hero-content {
  max-width: var(--container-content);
}

.hero-greeting {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  font-weight: 400;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.2s;
}

.hero-name {
  font-size: var(--font-size-hero);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  line-height: var(--line-height-tight);
  letter-spacing: -0.04em;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.4s;
}

.hero-title {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  font-weight: 400;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.6s;
}

.hero-title .separator {
  color: var(--color-text-muted);
  margin: 0 var(--space-sm);
}

.hero-tagline {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: 560px;
  margin-bottom: var(--space-2xl);
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 0.8s;
}

.hero-tagline .highlight {
  color: var(--color-accent);
  font-weight: 500;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
  animation-delay: 1s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.btn-primary {
  background: var(--color-text-primary);
  color: var(--color-bg);
}

.btn-primary:hover {
  background: var(--color-accent);
  color: var(--color-text-primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text-secondary);
  transform: translateY(-2px);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-3xl);
  left: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  opacity: 0;
  animation: fadeIn 1s ease forwards;
  animation-delay: 1.5s;
}

.scroll-indicator span {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-muted);
  writing-mode: vertical-lr;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

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

.about-content {
  max-width: var(--container-content);
}

.about-lead {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-xl);
  font-weight: 400;
}

.about-text p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-lg);
  line-height: var(--line-height-relaxed);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

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

.timeline {
  position: relative;
  max-width: var(--container-content);
}

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

.timeline-item {
  position: relative;
  padding-left: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -5px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-bg);
}

.timeline-header {
  margin-bottom: var(--space-lg);
}

.timeline-header h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.timeline-header .company {
  display: inline-block;
  font-size: var(--font-size-base);
  color: var(--color-accent);
  font-weight: 500;
}

.timeline-header .date {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.timeline-desc {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.project-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

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

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

.project-card h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.project-card p {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-lg);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tech-tags span {
  font-size: var(--font-size-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-weight: 500;
}

/* ---------- Skills Section ---------- */
.skills {
  background: var(--color-bg-elevated);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.skill-category {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.skill-category h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-lg);
  color: var(--color-text-primary);
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.skill-items span {
  font-size: var(--font-size-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.skill-items span:hover {
  border-color: var(--color-accent);
  color: var(--color-text-primary);
}

/* ---------- Projects Section ---------- */
.projects {
  background: var(--color-bg);
}

.projects-grid {
  display: grid;
  gap: var(--space-xl);
}

.project-showcase {
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.project-showcase:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.project-number {
  font-family: var(--font-display);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.3;
  margin-bottom: var(--space-md);
}

.project-showcase h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

.project-showcase p {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-lg);
  line-height: var(--line-height-relaxed);
}

.project-showcase.coming-soon {
  opacity: 0.7;
}

.project-badge {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

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

.blog-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: var(--container-content);
  margin-bottom: var(--space-2xl);
  line-height: var(--line-height-relaxed);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.blog-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

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

.blog-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
  width: fit-content;
}

.blog-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  line-height: var(--line-height-snug);
}

.blog-card h3 a {
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

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

.blog-card p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-accent);
  transition: all var(--transition-fast);
}

.blog-read-more:hover {
  gap: var(--space-sm);
}

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

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

.blog-cta {
  text-align: center;
}

.blog-cta .btn .arrow {
  margin-left: var(--space-xs);
}

/* ---------- Journey Section ---------- */
.journey {
  background: linear-gradient(to bottom, var(--color-bg), var(--color-bg-elevated));
}

.journey-content {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.journey-content h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-xl);
}

.journey-content p {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-2xl);
}

.journey-cta {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.social-link:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  background: var(--color-bg);
}

.social-icon {
  font-size: var(--font-size-lg);
}

/* ---------- Contact Section ---------- */
.contact {
  background: var(--color-bg-elevated);
}

.contact-content {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.contact-text {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xl);
  line-height: var(--line-height-relaxed);
}

.contact-email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2xl);
  position: relative;
  transition: color var(--transition-base);
}

.contact-email::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.contact-email:hover {
  color: var(--color-accent);
}

.contact-email:hover::after {
  transform: scaleX(1);
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.contact-link:hover {
  border-color: var(--color-text-primary);
  color: var(--color-text-primary);
  transform: translateY(-2px);
}

.contact-link svg {
  opacity: 0.8;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-2xl) 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

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

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.4;
    transform: scaleY(1);
  }

  50% {
    opacity: 1;
    transform: scaleY(1.2);
  }
}

/* Scroll-triggered animation class */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all var(--transition-smooth);
}

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

/* ---------- Responsive Design ---------- */
@media (max-width: 1024px) {
  .about-stats {
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 4rem;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 120px;
    padding-bottom: var(--space-4xl);
  }

  .hero-cta {
    flex-direction: column;
  }

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

  .scroll-indicator {
    display: none;
  }

  .about-stats {
    grid-template-columns: 1fr;
    text-align: left;
    gap: var(--space-lg);
  }

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

  .stat-number {
    font-size: var(--font-size-xl);
    margin-bottom: 0;
  }

  .timeline::before {
    left: -1px;
  }

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

  .timeline-marker {
    left: -6px;
  }

  .journey-cta {
    flex-direction: column;
    align-items: center;
  }

  .social-link,
  .contact-link {
    width: 100%;
    justify-content: center;
  }

  .contact-links {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .project-showcase {
    padding: var(--space-lg);
  }

  .skill-category {
    padding: var(--space-lg);
  }
}

/* ---------- Blog Page Styles ---------- */

/* Active nav link */
.nav-links a.active {
  color: var(--color-accent);
}

/* Blog Header */
.blog-header {
  padding-top: 140px;
  padding-bottom: var(--space-3xl);
  background: var(--color-bg);
}

.blog-header h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.blog-header-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: var(--container-content);
}

/* Blog Listing Page */
.blog-listing {
  background: var(--color-bg);
  padding-top: 0;
}

.blog-card-featured {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.blog-card-featured h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
}

.blog-card-featured h2 a {
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.blog-card-featured h2 a:hover {
  color: var(--color-accent);
}

.blog-card-featured p {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.blog-meta {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.blog-date,
.blog-reading-time {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Blog Post Page */
.blog-post {
  padding-top: 120px;
  padding-bottom: var(--space-4xl);
}

.blog-post-header {
  max-width: var(--container-content);
  margin-bottom: var(--space-3xl);
}

.blog-back-link {
  display: inline-block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  transition: color var(--transition-fast);
}

.blog-back-link:hover {
  color: var(--color-accent);
}

.blog-post-header h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-lg);
}

.blog-post-meta {
  display: flex;
  gap: var(--space-lg);
}

/* Blog Post Content */
.blog-post-content {
  max-width: var(--container-content);
}

.blog-post-content .lead {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-2xl);
}

.blog-post-content h2 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
}

.blog-post-content p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

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

.blog-post-content li {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-sm);
}

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

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

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

.blog-post-content code {
  font-family: 'Fira Code', 'SF Mono', monospace;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

/* Blog Post Footer */
.blog-post-footer {
  max-width: var(--container-content);
  margin-top: var(--space-4xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.blog-author {
  margin-bottom: var(--space-xl);
}

.blog-author-bio {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ---------- Print Styles ---------- */
@media print {

  .nav,
  .scroll-indicator,
  .hero-cta,
  .journey-cta,
  .contact-links {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .section {
    padding: 2rem 0;
  }
}