/* ===================================
   ENHANCED PORTFOLIO DESIGN SYSTEM
   ================================== */

/* CSS Custom Properties */
:root {
  /* Enhanced Color Palette */
  --primary-400: #6366f1;
  --primary-500: #8b5cf6;
  --primary-600: #7c3aed;

  /* Extended Palette */
  --accent-teal: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  /* Neutral Grays */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Semantic Colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;

  /* Dark Theme Colors */
  --bg-primary: var(--gray-900);
  --bg-secondary: var(--gray-800);
  --bg-tertiary: var(--gray-700);
  --text-primary: #e0e0e0;
  --text-secondary: #9198e5;
  --text-muted: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.1);

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

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-color: #e2e8f0;

  /* Light theme specific colors */
  --hero-bg: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(148, 163, 184, 0.2);

  /* Enhanced shadows for light theme */
  --shadow-sm: 0 1px 2px 0 rgb(15 23 42 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(15 23 42 / 0.1),
    0 2px 4px -2px rgb(15 23 42 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(15 23 42 / 0.1),
    0 4px 6px -4px rgb(15 23 42 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(15 23 42 / 0.1),
    0 8px 10px -6px rgb(15 23 42 / 0.1);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.15);
}

/* Base Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  color: var(--text-primary);
  overflow-x: hidden;
  transition: background var(--transition-normal),
    color var(--transition-normal);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  text-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  margin-bottom: var(--space-md);
}

p {
  line-height: 1.6;
  margin: 0 0 var(--space-md) 0;
  color: var(--text-secondary);
}

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

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

.text-gradient {
  background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hidden {
  display: none !important;
}

/* Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  border: none;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  min-height: 44px; /* Touch-friendly */
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(45deg, var(--primary-400), var(--primary-500));
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

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

.btn-secondary:hover {
  background: var(--bg-tertiary);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-400);
  border: 2px solid var(--primary-400);
}

.btn-outline:hover {
  background: var(--primary-400);
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

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

/* Focus States */
.btn:focus,
.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--primary-400);
  outline-offset: 2px;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(99, 102, 241, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

#particles-js {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  /* max-width: 800px; */
  margin: 0 auto;
  padding: var(--space-lg);
}

.hero-greeting {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  letter-spacing: 0.5px;
}

.hero-name {
  margin: var(--space-md) 0;
}

.highlight {
  background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

.hero-roles {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  align-items: center;
  margin: var(--space-xl) 0;
  flex-wrap: wrap;
}

.role {
  font-size: 1.25rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.role-divider {
  color: var(--primary-400);
  font-weight: bold;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin: var(--space-xl) auto;
  max-width: 600px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  margin: var(--space-2xl) 0;
  flex-wrap: wrap;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  justify-content: center;
  margin: var(--space-2xl) 0;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  transition: transform var(--transition-normal);
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-400);
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Tech Stack */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin: var(--space-xl) 0;
}

.tech-stack span {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.tech-stack span:hover {
  background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
  color: white;
  transform: translateY(-2px);
}

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 1000;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

.theme-toggle:hover {
  background: var(--bg-tertiary);
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
  transition: transform var(--transition-normal);
}

.theme-toggle:hover svg {
  transform: rotate(180deg);
}

.theme-toggle .hidden {
  display: none;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: var(--space-sm);
  background: var(--primary-400);
  color: white;
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  z-index: 9999;
  border-radius: var(--radius-md);
  transition: top var(--transition-normal);
}

.skip-link:focus {
  top: var(--space-sm);
}

/* About Section */
.about-header {
  padding-top: 50px;
}
.about {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  position: relative;
  overflow: hidden;
}

.about::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 80% 20%,
    rgba(99, 102, 241, 0.15) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.about-wrapper {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-2xl);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.about-photo {
  width: 250px;
  height: 250px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--primary-400);
  box-shadow: var(--shadow-xl);
  transition: all var(--transition-normal);
  position: relative;
}

.about-photo:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.about-text {
  font-size: 1.125rem;
  line-height: 1.7;
}

/* Skills Section */
.skills-section {
  padding: var(--space-3xl) 0;
}

.skills-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.skill-category {
  background: var(--bg-secondary);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.skill-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-400);
}

.skill-category h3 {
  color: var(--primary-400);
  margin-bottom: var(--space-lg);
  font-size: 1.25rem;
}

.skill-category ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.skill-category ul li {
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: var(--space-lg);
}

.skill-category ul li::before {
  content: "▶";
  color: var(--primary-400);
  position: absolute;
  left: 0;
  font-size: 0.75rem;
}

/* Skill Progress Bars */
.skill-item {
  margin-bottom: var(--space-lg);
}

.skill-name {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.skill-name::after {
  content: attr(data-percentage) "%";
  color: var(--primary-400);
  font-weight: 700;
}

.skill-progress {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  height: 8px;
  position: relative;
  overflow: hidden;
}

.skill-progress-bar {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
  border-radius: var(--radius-lg);
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 1000px;
  margin: var(--space-3xl) auto 0;
  padding: 0 var(--space-lg);
}

.timeline h3 {
  text-align: center;
  margin-bottom: var(--space-3xl);
  color: var(--primary-400);
  font-size: 2.5rem;
  position: relative;
}

.timeline h3::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
  border-radius: var(--radius-sm);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    var(--primary-400) var(--scroll-percent, 0%),
    rgba(99, 102, 241, 0.2) var(--scroll-percent, 0%)
  );
  top: 100px;
}

.timeline-item {
  width: calc(50% - 40px);
  margin-bottom: var(--space-3xl);
  position: relative;
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
  opacity: 0.7;
}

.timeline-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-400);
  opacity: 1;
}

.timeline-item:nth-child(odd) {
  margin-left: auto;
}

.timeline-item:nth-child(even) {
  margin-right: auto;
}

.timeline-item::before {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: linear-gradient(45deg, var(--primary-400), var(--primary-500));
  border-radius: 50%;
  top: 30px;
  border: 3px solid var(--bg-primary);
}

.timeline-item:nth-child(odd)::before {
  left: -50px;
}

.timeline-item:nth-child(even)::before {
  right: -50px;
}

.timeline-item::after {
  content: "";
  position: absolute;
  width: 30px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
  top: 39px;
}

.timeline-item:nth-child(odd)::after {
  left: -30px;
}

.timeline-item:nth-child(even)::after {
  right: -30px;
}

.year {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: linear-gradient(90deg, var(--primary-400), var(--primary-500));
  border-radius: var(--radius-xl);
  color: white;
  font-weight: 600;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-md);
}

/* Projects Section */
.projects {
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  position: relative;
  overflow: hidden;
}

.projects::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 20% 80%,
    rgba(99, 102, 241, 0.1) 0%,
    transparent 50%
  );
  pointer-events: none;
}

.projects h2 {
  text-align: center;
  margin-bottom: var(--space-2xl);
  color: var(--text-primary);
}

/* Project Filters */
.project-filters {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-400);
  color: white;
  border-color: var(--primary-400);
}

/* Enhanced Project Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.project-card-enhanced {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  position: relative;
}

.project-card-enhanced:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-400);
}

.project-image {
  position: relative;
  height: 200px;
  background: linear-gradient(135deg, var(--gray-700), var(--gray-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: auto;
  transition: transform var(--transition-normal);
}

.project-card-enhanced:hover .project-image img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.project-card-enhanced:hover .project-overlay {
  opacity: 1;
}

.project-stats {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.project-stats .stat {
  background: rgba(255, 255, 255, 0.2);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: white;
  backdrop-filter: blur(5px);
}

.project-content {
  padding: var(--space-xl);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.project-header h3 {
  color: var(--text-primary);
  margin: 0;
}

.project-status {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.status-badge {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-badge.live {
  background: var(--success);
  color: white;
}

.status-badge.development {
  background: var(--warning);
  color: white;
}

.github-stars {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.project-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
}

.metric {
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-400);
  margin-bottom: var(--space-xs);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

/* Blog Section */
.blog-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.blog-card {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-400);
}

.blog-card.featured {
  grid-column: span 2;
}

.blog-image {
  position: relative;
  height: 200px;
  background: linear-gradient(135deg, var(--gray-700), var(--gray-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.read-time {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
}

.blog-content {
  padding: var(--space-xl);
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
}

.category {
  background: var(--primary-400);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  font-weight: 600;
}

.blog-content h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.blog-stats {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-md);
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Code Showcase */
.code-showcase {
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
}

.code-tabs {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.tab-btn {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--primary-400);
  color: white;
  border-color: var(--primary-400);
}

.code-panel {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  display: none;
  backdrop-filter: blur(10px);
}

.code-panel.active {
  display: block;
}

.code-panel pre {
  margin: 0;
  padding: var(--space-xl);
  background: var(--gray-900);
  color: var(--gray-200);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  overflow-x: auto;
}

.code-explanation {
  padding: var(--space-xl);
}

.code-explanation h4 {
  color: var(--primary-400);
  margin-bottom: var(--space-md);
}

/* Interactive Terminal */
.interactive-terminal {
  background: var(--gray-900);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  font-family: var(--font-mono);
  margin: var(--space-xl) 0;
  box-shadow: var(--shadow-xl);
}

.terminal-header {
  background: var(--gray-800);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.terminal-header::before {
  content: "";
  display: flex;
  gap: var(--space-sm);
}

.terminal-header::before {
  content: "🔴 🟡 🟢";
  font-size: 0.75rem;
}

.terminal-title {
  color: var(--gray-300);
  font-size: 0.875rem;
}

.terminal-body {
  padding: var(--space-lg);
  color: var(--gray-200);
  font-size: 0.875rem;
  line-height: 1.6;
}

.terminal-line {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.prompt {
  color: var(--primary-400);
  font-weight: 700;
}

.command {
  color: var(--accent-emerald);
}

.terminal-output {
  margin: var(--space-sm) 0 var(--space-lg) var(--space-lg);
  color: var(--gray-300);
}

.terminal-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--gray-200);
  font-family: inherit;
  font-size: inherit;
  flex: 1;
}

/* Contact Section */
.contact {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  position: relative;
  overflow: hidden;
  padding: 50px;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 70% 30%,
    rgba(99, 102, 241, 0.1) 0%,
    transparent 50%
  );
  pointer-events: none;
}

.contact-card {
  background: var(--bg-secondary);
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-400);
}

.contact-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.contact-card h4 {
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.contact-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.response-time {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.status {
  font-size: 0.875rem;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
}

.status.online {
  background: var(--success);
  color: white;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.contact-form input,
.contact-form textarea {
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Testimonials */
.testimonials {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  position: relative;
  overflow: hidden;
  padding-bottom: 50px;
}

.testimonials::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 30% 40%,
    rgba(99, 102, 241, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.testimonials h2 {
  text-align: center;
  color: var(--text-primary);
}

.testimonials-header {
  margin-top: 50px;
}

.testimonial-slider {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  gap: var(--space-xl);
  padding: var(--space-xl);
  animation: slideTestimonials 50s linear infinite;
  will-change: transform;
}

.testimonial-card {
  min-width: 400px;
  max-width: 400px;
  flex: 0 0 auto;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  transition: transform var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-5px);
}

.testimonial-content {
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
  font-style: italic;
}

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

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(45deg, var(--primary-400), var(--primary-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
}

.author-info {
  flex-grow: 1;
}

.author-name {
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.author-title {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
}

.testimonial-slider::before,
.testimonial-slider::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 200px;
  z-index: 2;
  pointer-events: none;
}

.testimonial-slider::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-secondary) 20%, transparent);
}

.testimonial-slider::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-secondary) 20%, transparent);
}

@keyframes slideTestimonials {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(-50%, 0, 0);
  }
}

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

.footer p {
  margin: 0 0 var(--space-md) 0;
  color: var(--text-muted);
}

.socials {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
}

.socials a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-normal);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
}

.socials a:hover {
  color: var(--primary-400);
  background: var(--bg-secondary);
  transform: translateY(-2px);
}

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

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

@keyframes floatAnimation {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

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

/* Scroll Animations */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Loading States */
.loading {
  background: linear-gradient(
    90deg,
    var(--bg-secondary) 25%,
    var(--bg-tertiary) 50%,
    var(--bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

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

  .testimonial-track {
    animation: none;
  }

  .scroll-animate {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-contrast: high) {
  :root {
    --text-primary: #ffffff;
    --text-secondary: #ffffff;
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --border-color: #ffffff;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .about-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .blog-card.featured {
    grid-column: span 1;
  }
  .about-header {
    text-align: center;
  }

  .about-photo {
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 2.5rem;
  }

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

  /* Theme toggle mobile adjustments */
  .theme-toggle {
    top: var(--space-md);
    right: var(--space-md);
    width: 44px;
    height: 44px;
  }

  .hero-roles {
    flex-direction: column;
    gap: var(--space-md);
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-stats {
    gap: var(--space-lg);
  }

  /* Code tabs mobile improvements */
  .code-tabs {
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
  }

  .tab-btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: calc(100% - 40px);
    margin-left: 40px !important;
    margin-right: 0 !important;
  }

  .timeline-item::before {
    left: -30px !important;
    width: 15px;
    height: 15px;
  }

  .timeline-item::after {
    left: -15px !important;
    width: 15px;
  }

  .project-metrics {
    grid-template-columns: 1fr;
  }

  .project-actions {
    flex-direction: column;
  }

  .testimonial-card {
    min-width: 300px;
    max-width: 300px;
  }

  .testimonial-slider::before,
  .testimonial-slider::after {
    width: 50px;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }

  .stat-item {
    padding: var(--space-md);
  }

  .stat-number {
    font-size: 2rem;
  }

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

/* ==========================================================================
   ENHANCED CONTACT SECTION
   ========================================================================== */

.contact-card {
  padding: var(--space-lg);
  text-align: left;
}

.contact-card h3 {
  color: var(--text-primary);
  margin: var(--space-sm) 0;
  font-size: 1.125rem;
}

.contact-card p {
  margin: 0 0 var(--space-sm) 0;
  color: var(--text-secondary);
}

.contact-icon {
  color: var(--primary-400);
  margin-bottom: var(--space-sm);
}

.status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: var(--space-xs);
}

.status-indicator.online {
  background: var(--success);
}

.contact-form-container {
  position: relative;
}

.form-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.form-header h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

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

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  font-weight: 600;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-normal);
  font-family: inherit;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-help {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.submit-btn {
  width: 100%;
  position: relative;
  overflow: hidden;
}

.btn-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-status {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  text-align: center;
}

.quick-contact {
  text-align: center;
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.quick-contact-text {
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
}

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

.quick-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.quick-link:hover {
  background: var(--primary-400);
  color: white;
  border-color: var(--primary-400);
  transform: translateY(-2px);
}

/* Enhanced Footer */
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-info p {
  margin: 0;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: var(--space-xs) !important;
}

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

.footer-links a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.footer-links a:hover {
  color: var(--primary-400);
  background: var(--bg-secondary);
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

.hidden {
  display: none !important;
}

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

.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

.mb-0 {
  margin-bottom: 0;
}
.mb-1 {
  margin-bottom: 0.5rem;
}
.mb-2 {
  margin-bottom: 1rem;
}
.mb-3 {
  margin-bottom: 1.5rem;
}
.mb-4 {
  margin-bottom: 2rem;
}

.mt-0 {
  margin-top: 0;
}
.mt-1 {
  margin-top: 0.5rem;
}
.mt-2 {
  margin-top: 1rem;
}
.mt-3 {
  margin-top: 1.5rem;
}
.mt-4 {
  margin-top: 2rem;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

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

/* Form status messages */
.success-message {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--success);
  font-weight: 500;
  background: rgba(34, 197, 94, 0.1);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.error-message {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--error);
  font-weight: 500;
  background: rgba(239, 68, 68, 0.1);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.form-help.error {
  color: var(--error);
}

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--error);
}

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

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.btn-loader svg {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.code-tabs {
  flex-direction: column;
  align-items: center;
}

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

  .stat-item {
    width: 100%;
  }

  .tech-stack {
    justify-content: center;
  }

  .project-filters {
    flex-direction: column;
    align-items: center;
  }

  .testimonial-card {
    min-width: calc(100vw - 60px);
  }

  .socials {
    flex-direction: column;
    gap: var(--space-md);
  }
}

/* Print Styles */
@media print {
  .theme-toggle,
  .hero-cta,
  .contact-form,
  .testimonial-slider {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: var(--space-xl) 0;
  }

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

  .project-card-enhanced,
  .skill-category,
  .blog-card {
    break-inside: avoid;
  }
}

/* ===================================
   LIGHT THEME ENHANCEMENTS
   ================================== */

[data-theme="light"] .hero {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
}

[data-theme="light"] .hero::before {
  background: radial-gradient(
    circle at 50% 50%,
    rgba(99, 102, 241, 0.08) 0%,
    transparent 70%
  );
}

/* Enhanced card backgrounds for light theme */
[data-theme="light"] .project-card-enhanced,
[data-theme="light"] .skill-category,
[data-theme="light"] .testimonial-card,
[data-theme="light"] .blog-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.1),
    0 2px 4px -2px rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .project-card-enhanced:hover,
[data-theme="light"] .skill-category:hover,
[data-theme="light"] .blog-card:hover {
  box-shadow: 0 10px 15px -3px rgba(15, 23, 42, 0.1),
    0 4px 6px -4px rgba(15, 23, 42, 0.1);
  transform: translateY(-2px);
}

/* Code showcase improvements for light theme */
[data-theme="light"] .code-showcase {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

[data-theme="light"] .code-panel {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .code-panel pre {
  background: #1e293b;
  color: #e2e8f0;
}

/* Tab buttons for light theme */
[data-theme="light"] .tab-btn {
  background: rgba(255, 255, 255, 0.8);
  color: var(--text-secondary);
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .tab-btn:hover,
[data-theme="light"] .tab-btn.active {
  background: var(--primary-400);
  color: white;
  border-color: var(--primary-400);
  box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.3);
}

/* Contact section for light theme */
[data-theme="light"] .contact {
  background: linear-gradient(135deg, #f1f5f9 0%, #f8fafc 50%, #e2e8f0 100%);
}

[data-theme="light"] .contact-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.05);
}

/* Form styling for light theme */
[data-theme="light"] .contact-form input,
[data-theme="light"] .contact-form textarea {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.3);
  color: var(--text-primary);
}

[data-theme="light"] .contact-form input:focus,
[data-theme="light"] .contact-form textarea:focus {
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Testimonial improvements for light theme */
[data-theme="light"] .testimonial-section {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

/* Better text contrast for light theme */
[data-theme="light"] .highlight {
  background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Timeline improvements for light theme */
[data-theme="light"] .timeline-item {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 2px 4px -1px rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .timeline::before {
  background: linear-gradient(
    to bottom,
    var(--primary-400),
    var(--primary-500)
  );
}

/* Button enhancements for light theme */
[data-theme="light"] .btn-primary {
  background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
  color: white;
  box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.3),
    0 2px 4px -2px rgba(99, 102, 241, 0.3);
}

[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4),
    0 4px 6px -4px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
}

[data-theme="light"] .btn-outline {
  background: rgba(255, 255, 255, 0.9);
  color: var(--primary-400);
  border: 2px solid var(--primary-400);
  box-shadow: 0 2px 4px -1px rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .btn-outline:hover {
  background: var(--primary-400);
  color: white;
  box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.3);
}

/* Tech stack improvements for light theme */
[data-theme="light"] .tech-stack span {
  background: rgba(255, 255, 255, 0.8);
  color: var(--text-secondary);
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .tech-stack span:hover {
  background: var(--primary-400);
  color: white;
  border-color: var(--primary-400);
  box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.3);
  transform: translateY(-1px);
}