/* Modern CSS Reset and Variables */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
:root {
  /* Color Palette */
  --primary-color: #0066cc;
  --primary-light: #3385d6;
  --primary-dark: #004499;
  --secondary-color: #00a6fb;
  --accent-color: #ff6b35;
  
  /* Background Colors */
  --bg-primary: #0a0e27;
  --bg-secondary: #1a1f3a;
  --bg-card: #252a4a;
  --bg-dark: #050816;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b8c5d1;
  --text-muted: #8892b0;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-dark: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  --gradient-hero: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #252a4a 100%);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 20px rgba(0, 102, 204, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}
/* Base Styles */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}
.section {
  padding: var(--spacing-xl) 0;
  position: relative;
}
.section.bg-dark {
  background: var(--bg-dark);
}
.section-title {
  font-size: 3rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
/* Particle Controls */
.particle-controls {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(10, 14, 39, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 102, 204, 0.3);
  padding: var(--spacing-sm);
  z-index: 100;
  min-width: 280px;
  transition: var(--transition-normal);
}
.controls-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);
}
.controls-title {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
}
.controls-toggle {
  background: var(--primary-color);
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  color: white;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
}
.controls-toggle:hover {
  background: var(--primary-light);
  transform: scale(1.1);
}
.controls-content {
  max-height: 200px;
  overflow: hidden;
  transition: var(--transition-normal);
}
.controls-content.collapsed {
  max-height: 0;
}
.control-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 6px 0;
  border-bottom: 1px solid rgba(0, 102, 204, 0.1);
}
.control-item:last-child {
  border-bottom: none;
}
.control-icon {
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
}
.control-text {
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.3;
}
@media (max-width: 768px) {
  .particle-controls {
      top: 10px;
      right: 10px;
      min-width: 240px;
      font-size: 0.85rem;
  }
  
  .controls-title {
      font-size: 0.8rem;
  }
  
  .control-text {
      font-size: 0.75rem;
  }
}
/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: all var(--transition-normal);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo span {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}
.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}
.nav-link:hover {
  color: var(--primary-color);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}
.nav-link:hover::after {
  width: 100%;
}
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}
.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}
/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
}
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(10px);
}
.particle-container {
  width: 100%;
  height: 100%;
  background: transparent;
}
/* Floating language logos (2D) */
.logo-floating-container {
  position: absolute;
  inset: 0;
  z-index: 2; /* above particles/background, below text */
  pointer-events: none;
  overflow: hidden;
}
.floating-logo {
  position: absolute;
  opacity: 0.3;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.35));
  animation: floatLogo var(--dur, 18s) ease-in-out infinite alternate;
  will-change: transform;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  user-select: none;
}
.floating-logo.size-s { width: 28px; height: auto; }
.floating-logo.size-m { width: 40px; height: auto; }
.floating-logo.size-l { width: 56px; height: auto; }
@media (max-width: 768px) {
  .floating-logo.size-s { width: 22px; }
  .floating-logo.size-m { width: 30px; }
  .floating-logo.size-l { width: 40px; }
}
@keyframes floatLogo {
  0% { transform: translate(var(--x, 0px), var(--y, 0px)) rotate(0deg) scale(1); }
  100% { transform: translate(calc(var(--x, 0px) + var(--dx, 30px)), calc(var(--y, 0px) - var(--dy, 30px))) rotate(var(--rot, 8deg)) scale(1.02); }
}
@media (prefers-reduced-motion: reduce) {
  .floating-logo { animation: none; }
}
.hero-content {
  text-align: center;
  z-index: 3;
  position: relative;
  max-width: 800px;
  padding: 0 var(--spacing-md);
}
.hero-title {
  margin-bottom: var(--spacing-md);
}
.greeting {
  display: block;
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}
.name {
  display: block;
  font-size: 4rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}
.title {
  display: block;
  font-size: 1.5rem;
  color: var(--secondary-color);
  font-weight: 300;
}
.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}
.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.scroll-arrow {
  width: 24px;
  height: 24px;
  border: 2px solid var(--primary-color);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
      transform: translateY(0) rotate(45deg);
  }
  40% {
      transform: translateY(-10px) rotate(45deg);
  }
  60% {
      transform: translateY(-5px) rotate(45deg);
  }
}
/* Device Morph Animation */
.device-morph {
  margin-top: var(--spacing-xl);
  display: flex;
  justify-content: center;
  align-items: center;
}
.device-morph .device {
  position: relative;
  width: clamp(180px, 28vw, 360px);
  height: clamp(120px, 18vw, 220px);
  filter: drop-shadow(0 12px 32px rgba(0,0,0,0.35));
  animation: morph-cycle 12s ease-in-out infinite;
}
.device-morph .screen {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background:
      radial-gradient(120% 140% at 20% 10%, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0) 60%),
      linear-gradient(135deg, rgba(0,102,204,0.9), rgba(0,166,251,0.9));
  border: 3px solid rgba(255,255,255,0.15);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.06);
}
.device-morph .base {
  position: absolute;
  left: 50%;
  bottom: -14px;
  transform: translateX(-50%);
  width: 80%;
  height: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.15), rgba(255,255,255,0.06));
  border-radius: 6px;
  filter: blur(0.2px);
  opacity: 0; /* only visible in laptop state */
}
.device-morph .strap {
  position: absolute;
  top: 45%;
  width: 36%;
  height: 12px;
  background: rgba(255,255,255,0.08);
  border-radius: 6px;
  opacity: 0; /* only visible in watch state */
}
.device-morph .strap-left { left: -34%; }
.device-morph .strap-right { right: -34%; }
@keyframes morph-cycle {
  /* 0%..22% Laptop */
  0% {
      /* container shape approximates laptop screen ratio */
      border-radius: 12px;
      clip-path: inset(0 round 12px);
      transform: translateZ(0) scale(1);
  }
  10% {
      /* show keyboard base */
      transform: translateZ(0) scale(1.02);
  }
  22% {
      /* end laptop phase */
  }
  
  /* 23%..48% Tablet */
  23% {
      /* hide base, move to tablet aspect */
  }
  35% {
      
  }
  48% {
      
  }
  /* 49%..74% Phone */
  49% {
      
  }
  62% {
      
  }
  74% {
      
  }
  /* 75%..100% Watch */
  75% {
      
  }
  88% {
      
  }
  100% {
      
  }
}
.device-morph .device {
  /* CSS variables control sizes across phases */
  --radius: 14px;
  --w: 100%;
  --h: 100%;
}
/* Use multiple animations on inner elements synced with container */
.device-morph .screen { animation: screen-states 12s ease-in-out infinite; }
.device-morph .base { animation: base-states 12s ease-in-out infinite; }
.device-morph .strap { animation: strap-states 12s ease-in-out infinite; }
@keyframes screen-states {
  /* Laptop: wide 16:10 */
  0% { border-radius: 12px; transform: translateY(0) scale(1, 1); }
  22% { border-radius: 12px; transform: translateY(0) scale(1, 1); }
  /* Tablet: 4:3 with subtle rotate */
  23% { border-radius: 16px; transform: translateY(0) rotate(0deg) scale(0.92, 1); }
  48% { border-radius: 22px; transform: translateY(0) rotate(0.5deg) scale(0.9, 1); }
  /* Phone: tall 19.5:9 */
  49% { border-radius: 22px; transform: translateY(0) scale(0.65, 1.15); }
  74% { border-radius: 26px; transform: translateY(0) scale(0.6, 1.2); }
  /* Watch: square-ish */
  75% { border-radius: 24px; transform: translateY(0) scale(0.7, 0.7); }
  100% { border-radius: 22px; transform: translateY(0) scale(1, 1); }
}
@keyframes base-states {
  /* Base visible only in laptop phase */
  0% { opacity: 1; transform: translate(-50%, 0) scaleX(1); }
  20% { opacity: 1; transform: translate(-50%, 0) scaleX(1); }
  25% { opacity: 0; transform: translate(-50%, 6px) scaleX(0.9); }
  100% { opacity: 0; transform: translate(-50%, 6px) scaleX(0.9); }
}
@keyframes strap-states {
  /* Straps visible only in watch phase */
  0% { opacity: 0; }
  74% { opacity: 0; }
  80% { opacity: 1; }
  100% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .device-morph .device,
  .device-morph .screen,
  .device-morph .base,
  .device-morph .strap { animation: none; }
}
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--gradient-primary);
  color: white;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  animation: buttonGlow 1.5s infinite;
}
.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}
.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}
/* Click-to-gradient feedback for all buttons */
.btn:active {
  transform: translateY(-1px) scale(0.99);
}
.btn.clicked,
.btn:active {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
/* Ensure outlined buttons also become gradient on click */
.btn-secondary.clicked,
.btn-secondary:active {
  border-color: transparent;
}
.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}
/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}
.about-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}
.about-text p {
  margin-bottom: var(--spacing-md);
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}
.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 102, 204, 0.1);
  transition: all var(--transition-normal);
}
.stat-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}
.skill-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid rgba(0, 102, 204, 0.1);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}
.skill-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
}
.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}
.skill-card:hover::before {
  transform: scaleX(1);
}
.skill-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}
.skill-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}
.skill-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}
.skill-level {
  width: 100%;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
  overflow: hidden;
}
.skill-bar {
  height: 100%;
  background: var(--gradient-primary);
  width: 0;
  border-radius: 4px;
  transition: width 1s ease;
}
/* Projects Section */
.projects-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}
.filter-btn {
  padding: 0.5rem 1rem;
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: 500;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-color);
  color: white;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}
.project-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(0, 102, 204, 0.1);
  transition: all var(--transition-normal);
  opacity: 1;
  transform: scale(1);
}
.project-card.hidden {
  display: none;
}
.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}
.project-image {
  height: 200px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-icon {
  font-size: 4rem;
  color: white;
}
.project-content {
  padding: var(--spacing-md);
}
.project-content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}
.project-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}
.project-tech {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}
.tech-tag {
  background: rgba(0, 102, 204, 0.1);
  color: var(--primary-color);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
}
.project-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}
/* Featured Project Styling */
.project-card.featured {
  background: linear-gradient(135deg, #064E3B 0%, #1F2937 50%, #581C87 100%);
  border: 2px solid #10B981;
  box-shadow: 0 8px 40px rgba(16, 185, 129, 0.3);
  position: relative;
  overflow: hidden;
}
.project-card.featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(139, 92, 246, 0.1));
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.project-card.featured:hover::before {
  opacity: 1;
}
.project-card.featured .project-icon {
  background: linear-gradient(135deg, #10B981, #8B5CF6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2rem;
}
.project-card.featured .project-content h3 {
  background: linear-gradient(135deg, #34D399, #A855F7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}
.project-card.featured .tech-tag {
  background: linear-gradient(135deg, #10B981, #8B5CF6);
  border: 1px solid rgba(16, 185, 129, 0.5);
  color: #F0FDF4;
}
.project-card.featured:hover {
  transform: translateY(-12px);
  box-shadow: 0 12px 50px rgba(16, 185, 129, 0.4);
}
/* Achievements Section */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}
.achievement-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 102, 204, 0.1);
  transition: all var(--transition-normal);
  display: flex;
  gap: var(--spacing-md);
}
.achievement-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}
.achievement-icon {
  font-size: 2.5rem;
  color: var(--accent-color);
  flex-shrink: 0;
}
.achievement-content h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}
.achievement-description {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}
.achievement-detail {
  color: var(--text-secondary);
  line-height: 1.6;
}
/* Interests Section */
.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}
.interest-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid rgba(0, 102, 204, 0.1);
  transition: all var(--transition-normal);
  cursor: pointer;
}
.interest-card:hover {
  transform: translateY(-10px) rotate(2deg);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}
.interest-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}
.interest-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}
.interest-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Tools Section */
.tools-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.tool-item {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid rgba(0, 102, 204, 0.2);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(30px) scale(0.95);
}

.tool-item.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.tool-item:hover {
  transform: translateY(-8px);
  border-color: #0066cc;
  box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3);
}

.tool-item-icon {
  font-size: 3rem;
  color: #0066cc;
  margin-bottom: 1rem;
  display: block;
}

.tool-item-icon i {
  display: inline-block;
  color: #0066cc;
}

.tool-item-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.tool-item-desc {
  font-size: 0.95rem;
  color: #94a3b8;
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .tools-container {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .tools-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .tools-container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Contact Section */
.contact-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}
.contact-info h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.contact-info p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}
.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}
.social-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-card);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 102, 204, 0.1);
  transition: all var(--transition-normal);
}
.social-link:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}
.social-link i {
  font-size: 1.2rem;
}
/* Contact form */
.contact-form-wrapper {
  margin-top: var(--spacing-lg);
  background: var(--bg-card);
  border: 1px solid rgba(0, 102, 204, 0.1);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}
.contact-form .form-row { margin-bottom: var(--spacing-sm); }
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255,255,255,0.02);
  color: var(--text-primary);
  border: 1px solid rgba(0, 102, 204, 0.2);
  border-radius: var(--radius-sm);
  outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}
.contact-form .form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.contact-status {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
/* Footer */
.footer {
  background: var(--bg-dark);
  padding: var(--spacing-lg) 0;
  text-align: center;
  border-top: 1px solid rgba(0, 102, 204, 0.1);
}
.footer-content p {
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}
.footer-quote {
  font-style: italic;
  color: var(--text-secondary);
}
/* Modals */
.modal {
  display: none;
  position: fixed;
  z-index: 10000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  animation: fadeIn 0.3s ease;
  align-items: center;
  justify-content: center;
}
.modal.active {
  display: flex;
}
.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid rgba(0, 102, 204, 0.2);
  animation: slideIn 0.3s ease;
}
.modal-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid rgba(0, 102, 204, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header h2 {
  color: var(--text-primary);
  margin: 0;
  font-size: 1.5rem;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.modal-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}
.modal-body {
  padding: var(--spacing-md);
}
/* Todo App Styles */
.todo-app {
  width: 500px;
  max-width: 90vw;
}
.todo-input-section {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}
#todo-input {
  flex: 1;
  min-width: 200px;
  padding: 0.75rem;
  border: 1px solid rgba(0, 102, 204, 0.3);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
}
#todo-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.2);
}
#todo-priority {
  padding: 0.75rem;
  border: 1px solid rgba(0, 102, 204, 0.3);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
}
.todo-filters {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}
.todo-list-container {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: var(--spacing-md);
  border: 1px solid rgba(0, 102, 204, 0.1);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
}
.todo-list {
  list-style: none;
  padding: var(--spacing-sm);
}
.todo-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--primary-color);
  transition: all var(--transition-fast);
}
.todo-item:hover {
  transform: translateX(5px);
}
.todo-item.completed {
  opacity: 0.6;
  border-left-color: var(--text-muted);
}
.todo-item.completed .todo-text {
  text-decoration: line-through;
}
.todo-checkbox {
  width: 20px;
  height: 20px;
}
.todo-text {
  flex: 1;
  color: var(--text-primary);
}
.todo-delete {
  background: none;
  border: none;
  color: var(--accent-color);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.todo-delete:hover {
  background: rgba(255, 107, 53, 0.1);
}
.todo-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}
/* Calculator Styles */
.calculator {
  width: 400px;
  max-width: 90vw;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(0, 102, 204, 0.2);
}
.calculator-display {
  background: var(--bg-primary);
  padding: var(--spacing-md);
  border-bottom: 1px solid rgba(0, 102, 204, 0.1);
}
.calculation-history {
  color: var(--text-muted);
  font-size: 0.9rem;
  min-height: 1.5rem;
  margin-bottom: var(--spacing-xs);
}
#calc-display {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  text-align: right;
  font-weight: 300;
}
#calc-display:focus {
  outline: none;
}
.calculator-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--bg-primary);
}
.calc-btn {
  background: var(--bg-card);
  border: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  padding: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.calc-btn:hover {
  background: var(--bg-secondary);
}
.calc-btn.operator {
  background: var(--primary-color);
  color: white;
}
.calc-btn.operator:hover {
  background: var(--primary-light);
}
.calc-btn.equals {
  background: var(--accent-color);
  color: white;
  grid-row: span 2;
}
.calc-btn.equals:hover {
  background: #ff8555;
}
.calc-btn.zero {
  grid-column: span 2;
}
.calc-btn.clear {
  background: var(--accent-color);
  color: white;
}
.calc-btn.clear:hover {
  background: #ff8555;
}
/* Animations */
@keyframes fadeIn {
  from {
      opacity: 0;
  }
  to {
      opacity: 1;
  }
}
/* Simple tool form styles for mini apps */
.tool-form {
  display: grid;
  gap: var(--spacing-md);
  max-width: 700px;
}
.tool-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: center;
}
.tool-form input,
.tool-form select {
  padding: 0.6rem 0.8rem;
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 102, 204, 0.3);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
}
.tool-output {
  flex: 1;
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 0.6rem 0.8rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 102, 204, 0.2);
  color: var(--text-secondary);
}
@keyframes slideIn {
  from {
      transform: translateY(-50px);
      opacity: 0;
  }
  to {
      transform: translateY(0);
      opacity: 1;
  }
}
/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
      display: none;
  }
  
  .hamburger {
      display: flex;
  }
  
  .name {
      font-size: 3rem !important;
  }
  
  .section-title {
      font-size: 2.5rem;
  }
  
  .about-content {
      grid-template-columns: 1fr;
      gap: var(--spacing-md);
  }
  
  .about-stats {
      grid-template-columns: repeat(2, 1fr);
      gap: var(--spacing-sm);
  }
  
  .hero-buttons {
      flex-direction: column;
      align-items: center;
  }
  
  .todo-input-section {
      flex-direction: column;
  }
  
  .calculator {
      width: 100%;
  }
  
  .achievement-card {
      flex-direction: column;
      text-align: center;
  }
  
  .projects-grid {
      grid-template-columns: 1fr;
  }
  
  .interests-grid {
      grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .name {
      font-size: 2.5rem !important;
  }
  
  .section-title {
      font-size: 2rem;
  }
  
  .about-stats {
      grid-template-columns: 1fr;
  }
  
  .interests-grid {
      grid-template-columns: 1fr;
  }
  
  .projects-filter {
      flex-direction: column;
      align-items: center;
  }
  
  .social-links {
      flex-direction: column;
      align-items: center;
  }
  
  .youtube-content {
      grid-template-columns: 1fr;
      text-align: center;
  }
  
  .youtube-highlights {
      grid-template-columns: 1fr;
  }
  
  .tabs-grid {
      grid-template-columns: 1fr;
  }
  
  .project-header {
      flex-direction: column;
      gap: 10px;
      text-align: center;
  }
}
/* Smooth scrolling animations */
.section {
  opacity: 1;
  transform: translateY(0);
  transition: all 0.6s ease;
}
/* Working On Section Styles */
.working-project {
  background: var(--bg-card);
  border-radius: 12px;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid rgba(0, 119, 255, 0.1);
}
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid rgba(0, 119, 255, 0.2);
}
.project-header h3 {
  color: var(--primary-color);
  font-size: 1.8rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.status-badge {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}
.project-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}
.overview-card {
  background: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
}
.overview-card h4 {
  color: var(--primary-light);
  margin-bottom: 10px;
  font-size: 1.1rem;
}
.tech-architecture {
  margin-bottom: var(--spacing-lg);
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}
.tech-item {
  background: var(--bg-secondary);
  padding: var(--spacing-sm);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all var(--transition-fast);
}
.tech-item:hover {
  background: rgba(0, 119, 255, 0.1);
  transform: translateY(-2px);
}
.tech-item i {
  color: var(--primary-color);
  font-size: 1.2rem;
}
.dashboard-tabs {
  margin-bottom: var(--spacing-lg);
}
.tabs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}
.tab-card {
  background: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid rgba(0, 119, 255, 0.1);
  transition: all var(--transition-fast);
}
.tab-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 119, 255, 0.2);
}
.tab-icon {
  font-size: 2rem;
  margin-bottom: 10px;
  display: block;
}
.tab-card h5 {
  color: var(--primary-light);
  margin-bottom: 8px;
  font-size: 1.1rem;
}
.tab-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.4;
}
.key-features {
  margin-bottom: var(--spacing-lg);
}
.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}
.feature-item {
  background: var(--bg-secondary);
  padding: var(--spacing-sm);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all var(--transition-fast);
}
.feature-item:hover {
  background: rgba(0, 119, 255, 0.1);
}
.feature-item i {
  color: var(--accent-color);
  font-size: 1.1rem;
  width: 20px;
}
.project-metrics {
  margin-bottom: var(--spacing-lg);
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}
.metric-item {
  text-align: center;
  background: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: 8px;
  transition: all var(--transition-fast);
}
.metric-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 119, 255, 0.15);
}
.metric-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1;
}
.metric-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 5px;
}
/* YouTube Section Styles */
.youtube-section {
  margin-top: var(--spacing-xl);
}
.youtube-flyer {
  background: linear-gradient(135deg, #ff0000, #cc0000);
  border-radius: 12px;
  padding: var(--spacing-lg);
  color: white;
  position: relative;
  overflow: hidden;
}
.youtube-flyer::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 50%);
  animation: float 6s ease-in-out infinite;
}
.youtube-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: var(--spacing-md);
}
.youtube-header i {
  font-size: 2.5rem;
  animation: bounce 2s infinite;
}
.youtube-header h3 {
  font-size: 2rem;
  margin: 0;
  font-weight: 700;
}
.youtube-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}
.youtube-info h4 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: #ffeb3b;
}
.youtube-info p {
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
  line-height: 1.6;
}
.youtube-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}
.highlight-item i {
  color: #ffeb3b;
  width: 20px;
}
.youtube-cta {
  text-align: center;
}
.btn-youtube {
  background: linear-gradient(135deg, #ffeb3b, #ffc107);
  color: #000;
  padding: 15px 30px;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 25px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all var(--transition-fast);
  margin-bottom: 10px;
}
.btn-youtube:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(255, 235, 59, 0.3);
  background: linear-gradient(135deg, #fff59d, #ffeb3b);
}
.subscribe-text {
  font-size: 0.9rem;
  margin: 10px 0 0 0;
  opacity: 0.9;
}
/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-light);
}
/* Page Loader */
.page-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  z-index: 20000;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.bars-loader {
  --uib-size: 48px;
  --uib-color: var(--text-primary);
  --uib-speed: 1s;
  --uib-stroke: 3.5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: var(--uib-size);
  height: calc(var(--uib-size) * 0.9);
}
.bars-loader .bar {
  width: var(--uib-stroke);
  height: 100%;
  background-color: var(--uib-color);
  transition: background-color 0.3s ease;
}
.bars-loader .bar:nth-child(1) {
  animation: bars-grow var(--uib-speed) ease-in-out calc(var(--uib-speed) * -0.45) infinite;
}
.bars-loader .bar:nth-child(2) {
  animation: bars-grow var(--uib-speed) ease-in-out calc(var(--uib-speed) * -0.3) infinite;
}
.bars-loader .bar:nth-child(3) {
  animation: bars-grow var(--uib-speed) ease-in-out calc(var(--uib-speed) * -0.15) infinite;
}
.bars-loader .bar:nth-child(4) {
  animation: bars-grow var(--uib-speed) ease-in-out infinite;
}
@keyframes bars-grow {
  0%, 100% { transform: scaleY(0.3); }
  50% { transform: scaleY(1); }
}
@media (prefers-reduced-motion: reduce) {
  .bars-loader .bar { animation-duration: 1.6s; }
}
@keyframes buttonGlow {
0% { box-shadow: 0 0 0 0 rgba(0,102,204,0.7); }
70% { box-shadow: 0 0 0 10px rgba(0,102,204,0); }
100% { box-shadow: 0 0 0 0 rgba(0,102,204,0); }
}

/* Play Area */
.play-area {
  margin: var(--spacing-xl) auto 0;
  padding: var(--spacing-lg);
  max-width: 960px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 102, 204, 0.15);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.play-area::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at top right, rgba(0, 166, 251, 0.12), transparent 55%);
  pointer-events: none;
}
.play-area h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}
.play-area p {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.play-embed {
  width: 100%;
  min-height: 480px;
  border: none;
  border-radius: var(--radius-md);
  background: #000;
  box-shadow: var(--shadow-lg);
}
.play-area .play-meta {
  margin-top: var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.play-area .play-meta span {
  padding: 0.35rem 0.85rem;
  background: rgba(0, 102, 204, 0.12);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 102, 204, 0.2);
}
@media (max-width: 768px) {
  .play-area {
      padding: var(--spacing-md);
  }
  .play-area h2 {
      font-size: 1.6rem;
  }
  .play-embed {
      min-height: 360px;
  }
}
.sound-toggle {
  margin-left: var(--spacing-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  backdrop-filter: blur(10px);
}
.sound-toggle[aria-pressed="false"] {
  opacity: 0.7;
}