*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --accent: #06b6d4;
  --accent2: #8b5cf6;
  --bg-dark: #030014;
  --bg-card: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --glass: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

/* Custom Cursor */
.cursor {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 10000;
  transition: transform 0.1s;
  mix-blend-mode: difference;
}

.cursor-follower {
  width: 40px;
  height: 40px;
  border: 1px solid var(--primary-light);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transition: all 0.15s ease-out;
}

a, button, .skill-item, .project-card {
  cursor: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all 0.4s ease;
}

.navbar.scrolled {
  background: rgba(3, 0, 20, 0.9);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-dot {
  color: var(--primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.3s ease;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}

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

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  animation: float 20s ease-in-out infinite;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
  animation: float 15s ease-in-out infinite reverse;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent2) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  animation: float 25s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(50px, -50px) scale(1.1); }
  50% { transform: translate(-30px, 30px) scale(0.9); }
  75% { transform: translate(30px, 50px) scale(1.05); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-greeting {
  font-size: 1.125rem;
  color: var(--primary-light);
  font-weight: 500;
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}

.name-line {
  display: block;
}

.highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title-wrapper {
  display: flex;
  align-items: center;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 1.5rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.title-cursor {
  color: var(--primary);
  animation: blink 1s infinite;
  margin-left: 4px;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-description {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 500;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent2) 100%);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

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

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

.btn-small {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.hero-social {
  display: flex;
  gap: 16px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.social-link:hover {
  color: var(--primary);
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

/* Terminal */
.hero-visual {
  display: flex;
  justify-content: center;
  perspective: 1000px;
}

.terminal {
  width: 100%;
  max-width: 450px;
  background: rgba(15, 23, 42, 0.9);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  transform: rotateY(-10deg) rotateX(5deg);
  transition: transform 0.5s ease, box-shadow 0.5s ease;
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(99, 102, 241, 0.1);
}

.terminal:hover {
  transform: rotateY(0) rotateX(0);
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(99, 102, 241, 0.2);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid var(--border);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.dot:hover { transform: scale(1.2); }

.terminal-title {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.terminal-body {
  padding: 20px;
  min-height: 280px;
  max-height: 350px;
  overflow-y: auto;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  scroll-behavior: smooth;
}

.terminal-body::-webkit-scrollbar {
  width: 6px;
}

.terminal-body::-webkit-scrollbar-track {
  background: transparent;
}

.terminal-body::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.terminal-output {
  margin-bottom: 8px;
}

.terminal-line {
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.terminal-line .highlight {
  color: var(--primary);
  font-weight: 500;
  background: none;
  -webkit-text-fill-color: var(--primary);
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-prompt {
  color: var(--accent);
  white-space: nowrap;
}

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

.terminal-input::placeholder {
  color: rgba(148, 163, 184, 0.3);
}

/* Terminal Output Styles */
.terminal-output .cmd {
  color: var(--text-primary);
}

.terminal-output .output {
  color: var(--text-secondary);
}

.terminal-output .success {
  color: #22c55e;
}

.terminal-output .error {
  color: #ef4444;
}

.terminal-output .info {
  color: var(--primary-light);
}

.terminal-output .command-name {
  color: var(--accent);
  font-weight: 500;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-secondary);
  border-radius: 12px;
  position: relative;
}

.wheel {
  width: 4px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll 2s infinite;
}

@keyframes scroll {
  0%, 100% { opacity: 1; top: 8px; }
  50% { opacity: 0.5; top: 18px; }
}

/* Sections */
.section {
  padding: 70px 0;
  position: relative;
}

.section-dark {
  background: rgba(0, 0, 0, 0.3);
}

.section-header {
  text-align: center;
  margin-bottom: 32px;
}

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--primary);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
}

/* Glass Card */
.glass-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.card-3d {
  padding: 32px;
  transition: transform 0.3s ease;
}

.glass-card:hover .card-3d {
  transform: translateZ(20px);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.about-card {
  transition: all 0.4s ease;
}

.about-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.about-icon {
  color: var(--primary);
  margin-bottom: 20px;
}

.about-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}

.accent {
  display: block;
  color: var(--primary-light);
  font-weight: 500;
}

.tag {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 6px;
  font-size: 0.8125rem;
  color: var(--primary);
}

/* Skills Grid - Professional */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.skill-category {
  transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.skill-category:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.category-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.category-title::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 12px var(--primary);
  flex-shrink: 0;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px 10px 10px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.tech-item img {
  width: 28px;
  height: 28px;
  transition: transform 0.3s ease;
}

.tech-item img.invert {
  filter: invert(1);
}

.tech-item:hover {
  transform: translateY(-4px) scale(1.05);
  border-color: var(--primary);
  color: var(--text-primary);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.25);
}

.tech-item:hover img {
  transform: scale(1.15) rotate(5deg);
}

@media (max-width: 768px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* Skills section - compact spacing */
#skills {
  padding-top: 70px;
  padding-bottom: 70px;
}

#skills .section-header {
  margin-bottom: 20px;
}

/* 3D Orbit Scene */
.orbit-scene {
  position: relative;
  height: 440px;
  max-width: 1000px;
  margin: 0 auto;
  perspective: 1200px;
  z-index: 1;
}

.orbit-ellipse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px dashed rgba(99, 102, 241, 0.25);
  border-radius: 50%;
  pointer-events: none;
}

.orbit-ellipse.e2 {
  border-color: rgba(6, 182, 212, 0.22);
}

.orbit-ellipse.e3 {
  border-color: rgba(139, 92, 246, 0.2);
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110px;
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.core-glow {
  position: absolute;
  inset: -25px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.45), transparent 70%);
  border-radius: 50%;
  filter: blur(15px);
  animation: pulseGlow 3s ease-in-out infinite;
}

.core-badge {
  position: relative;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.55), inset 0 0 18px rgba(255, 255, 255, 0.15);
  animation: floatCenter 4s ease-in-out infinite;
}

.core-badge svg {
  width: 44px;
  height: 44px;
  color: #fff;
}

.planet {
  position: absolute;
  top: 0;
  left: 0;
  width: auto;
  min-width: 84px;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 14px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  will-change: transform, opacity;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.planet img {
  width: 40px;
  height: 40px;
  transition: transform 0.3s;
  pointer-events: none;
}

.planet img.invert {
  filter: invert(1);
}

.planet span {
  position: static;
  transform: none;
  background: none;
  border: none;
  padding: 0;
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 1;
  color: var(--text-secondary);
  transition: color 0.25s;
  pointer-events: none;
}

.planet:hover {
  border-color: var(--primary);
  box-shadow: 0 0 24px rgba(99, 102, 241, 0.5);
  z-index: 50 !important;
}

.planet:hover img {
  transform: scale(1.2);
}

.planet:hover span {
  color: #fff;
}

@media (max-width: 768px) {
  .orbit-scene {
    height: 280px;
  }

  .planet {
    min-width: 68px;
    padding: 8px 10px;
    border-radius: 14px;
  }

  .planet img {
    width: 30px;
    height: 30px;
  }

  .core-badge {
    width: 76px;
    height: 76px;
  }
}

/* Skills Section (legacy orbit styles unused) */
.skills-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  height: 600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Particles Background */
.skills-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0.3;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.3;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    transform: translateY(-100px) rotate(720deg);
    opacity: 0;
  }
}

/* Orbit Rings */
.orbit-ring {
  position: absolute;
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 50%;
  animation: rotateRing 20s linear infinite;
}

.ring-1 {
  width: 300px;
  height: 300px;
  border-color: rgba(99, 102, 241, 0.2);
  animation-duration: 15s;
}

.ring-2 {
  width: 450px;
  height: 450px;
  border-color: rgba(6, 182, 212, 0.15);
  animation-duration: 25s;
  animation-direction: reverse;
}

.ring-3 {
  width: 600px;
  height: 600px;
  border-color: rgba(139, 92, 246, 0.1);
  animation-duration: 35s;
}

@keyframes rotateRing {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Center Logo */
.skills-center {
  position: relative;
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.center-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulseGlow 3s ease-in-out infinite;
  filter: blur(20px);
}

@keyframes pulseGlow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
}

.center-content {
  position: relative;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent2) 100%);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 
    0 0 40px rgba(99, 102, 241, 0.5),
    inset 0 0 20px rgba(255, 255, 255, 0.1);
  animation: floatCenter 4s ease-in-out infinite;
}

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

.center-icon {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 1.75rem;
  font-weight: 700;
  color: white;
}

.center-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 4px;
}

/* Skill Items */
.skill-item {
  position: absolute;
  width: 80px;
  height: 80px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.skill-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  border-radius: 16px;
}

.skill-item:hover .skill-glow {
  opacity: 1;
}

.skill-item:hover {
  transform: scale(1.3) translateY(-10px) !important;
  border-color: var(--primary);
  box-shadow: 
    0 0 30px rgba(99, 102, 241, 0.5),
    0 10px 40px rgba(99, 102, 241, 0.3);
  z-index: 100;
}

.skill-icon {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 1;
}

.skill-icon img {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 8px var(--primary));
  transition: filter 0.3s ease, transform 0.3s ease;
}

.skill-item:hover .skill-icon img {
  filter: drop-shadow(0 0 16px white) brightness(1.2);
  transform: scale(1.15);
}

.skill-name {
  position: relative;
  font-size: 0.6rem;
  color: var(--text-secondary);
  margin-top: 4px;
  opacity: 0;
  transform: translateY(5px);
  transition: all 0.3s ease;
  z-index: 1;
}

.skill-item:hover .skill-name {
  opacity: 1;
  transform: translateY(0);
  color: white;
}

/* Floating Animation */
.floating {
  animation: floating var(--duration) ease-in-out infinite;
  animation-delay: var(--delay);
}

@keyframes floating {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-15px) rotate(2deg);
  }
  50% {
    transform: translateY(-5px) rotate(-1deg);
  }
  75% {
    transform: translateY(-20px) rotate(1deg);
  }
}

/* Skill item positions - closer to center */
.skill-item:nth-child(5) { top: 15%; left: 50%; transform: translateX(-50%); }
.skill-item:nth-child(6) { top: 25%; left: 70%; }
.skill-item:nth-child(7) { top: 45%; left: 80%; }
.skill-item:nth-child(8) { top: 65%; left: 75%; }
.skill-item:nth-child(9) { top: 80%; left: 60%; }
.skill-item:nth-child(10) { top: 88%; left: 50%; transform: translateX(-50%); }
.skill-item:nth-child(11) { top: 80%; left: 35%; }
.skill-item:nth-child(12) { top: 60%; left: 18%; }
.skill-item:nth-child(13) { top: 40%; left: 15%; }
.skill-item:nth-child(14) { top: 22%; left: 25%; }
.skill-item:nth-child(15) { top: 15%; left: 35%; }
.skill-item:nth-child(16) { top: 50%; left: 12%; }
.skill-item:nth-child(17) { top: 50%; right: 12%; left: auto; }
.skill-item:nth-child(18) { top: 65%; left: 45%; }
.skill-item:nth-child(19) { top: 30%; left: 45%; }

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.project-card {
  transition: all 0.4s ease;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

/* Compact project cards */
.project-card .card-3d {
  padding: 24px;
}

.project-description {
  margin-bottom: 14px;
}

.project-tech {
  margin-bottom: 16px;
}

.project-badge {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent2) 100%);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.project-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.project-role {
  color: var(--primary-light);
  font-size: 0.875rem;
  margin-bottom: 16px;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.project-tech span {
  padding: 4px 10px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--primary-light);
}

.project-links {
  display: flex;
  gap: 12px;
}

/* Timeline */
.timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--accent2) 100%);
}

.timeline-item {
  padding-left: 40px;
  padding-bottom: 40px;
  position: relative;
}

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

.timeline-dot {
  position: absolute;
  left: -7px;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--bg-dark);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.timeline-content {
  transition: all 0.4s ease;
}

.timeline-content:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
}

.timeline-date {
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 500;
}

.timeline-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.125rem;
  margin: 8px 0;
}

.timeline-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-text {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 40px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: block;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
}

.contact-item .card-3d {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
}

.contact-item svg {
  color: var(--primary);
  flex-shrink: 0;
}

.contact-form .card-3d {
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

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

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

/* Footer */
.footer {
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-description {
    margin: 0 auto 40px;
  }

  .hero-buttons,
  .hero-social {
    justify-content: center;
  }

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

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

  .skills-container {
    height: 500px;
  }

  .skill-item {
    width: 50px;
    height: 50px;
  }

  .skill-icon {
    width: 28px;
    height: 28px;
  }

  .center-content {
    width: 100px;
    height: 100px;
  }

  .center-icon {
    font-size: 1.25rem;
  }

  .ring-1 { width: 200px; height: 200px; }
  .ring-2 { width: 300px; height: 300px; }
  .ring-3 { width: 400px; height: 400px; }

  body {
    cursor: auto;
  }

  .cursor, .cursor-follower {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(3, 0, 20, 0.98);
    flex-direction: column;
    padding: 100px 40px;
    gap: 16px;
    border-left: 1px solid var(--border);
    transition: right 0.4s ease;
  }

  .nav-links.active {
    right: 0;
  }

  .hero-name {
    font-size: 2.5rem;
  }

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

  .section {
    padding: 60px 0;
  }
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* Tilt effect */
.tilt {
  transform-style: preserve-3d;
}

/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

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

.theme-toggle .sun-icon {
  display: none;
}

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

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

/* Light Mode */
[data-theme="light"] {
  --bg-dark: #f1f5f9;
  --bg-darker: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.7);
  --border: rgba(15, 23, 42, 0.1);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --glass: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .section-dark {
  background: rgba(15, 23, 42, 0.04);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(255, 255, 255, 0.9);
}

@media (max-width: 768px) {
  [data-theme="light"] .nav-links {
    background: rgba(255, 255, 255, 0.98);
  }
}

[data-theme="light"] .grid-overlay {
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.05) 1px, transparent 1px);
}

[data-theme="light"] .gradient-orb {
  opacity: 0.35;
}

[data-theme="light"] .planet {
  background: rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .planet img.invert {
  filter: none;
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
  background: rgba(255, 255, 255, 0.9);
}

/* Light mode - vibrant hover effects */
[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.55), 0 0 0 4px rgba(99, 102, 241, 0.15);
  filter: brightness(1.05);
}

[data-theme="light"] .btn-glass:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(6, 182, 212, 0.12));
  border-color: var(--primary);
  color: var(--primary-dark);
}

[data-theme="light"] .nav-links a:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

[data-theme="light"] .project-card:hover,
[data-theme="light"] .about-card:hover,
[data-theme="light"] .skill-category:hover,
[data-theme="light"] .timeline-content:hover,
[data-theme="light"] .contact-item:hover {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(6, 182, 212, 0.08));
  box-shadow: 0 18px 40px rgba(99, 102, 241, 0.22), 0 4px 12px rgba(6, 182, 212, 0.15);
}

[data-theme="light"] .social-link:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.45);
}

[data-theme="light"] .planet:hover {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-color: transparent;
  box-shadow: 0 10px 26px rgba(99, 102, 241, 0.5);
}

[data-theme="light"] .planet:hover img {
  filter: brightness(0) invert(1);
}

[data-theme="light"] .planet:hover span {
  color: #fff;
}

[data-theme="light"] .tag,
[data-theme="light"] .project-tech span {
  transition: all 0.3s ease;
}

[data-theme="light"] .tag:hover,
[data-theme="light"] .project-tech span:hover {
  background: linear-gradient(135deg, var(--primary), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

[data-theme="light"] .section-title::after {
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent2));
}

[data-theme="light"] .theme-toggle:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(6, 182, 212, 0.15));
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

/* Signature hover color per card type */
.project-card:hover {
  border-color: #8b5cf6;
  box-shadow: 0 22px 50px rgba(139, 92, 246, 0.35), 0 0 24px rgba(139, 92, 246, 0.2);
}

.project-card:hover .project-title {
  background: linear-gradient(135deg, #a78bfa, #6366f1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.projects-grid .project-card:nth-child(2) .project-badge {
  background: linear-gradient(135deg, #06b6d4, #3b82f6);
}

.projects-grid .project-card:nth-child(3) .project-badge {
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
}

.about-card:hover {
  border-color: #06b6d4;
  box-shadow: 0 22px 50px rgba(6, 182, 212, 0.32), 0 0 24px rgba(6, 182, 212, 0.18);
}

.about-card:hover .about-icon {
  color: #06b6d4;
  filter: drop-shadow(0 0 10px rgba(6, 182, 212, 0.6));
}

.timeline-content:hover {
  border-color: #ec4899;
  box-shadow: 0 18px 44px rgba(236, 72, 153, 0.32), 0 0 24px rgba(236, 72, 153, 0.18);
}

.timeline-content:hover .timeline-date {
  color: #ec4899;
}

.contact-item:hover {
  border-color: #10b981;
  box-shadow: 0 18px 44px rgba(16, 185, 129, 0.3), 0 0 24px rgba(16, 185, 129, 0.18);
}

.contact-item:hover svg {
  color: #10b981;
  filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.6));
}

/* Light mode tinted backgrounds per card */
[data-theme="light"] .project-card:hover {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(99, 102, 241, 0.05));
  box-shadow: 0 22px 50px rgba(139, 92, 246, 0.3);
}

[data-theme="light"] .about-card:hover {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(6, 182, 212, 0.04));
  box-shadow: 0 22px 50px rgba(6, 182, 212, 0.28);
}

[data-theme="light"] .timeline-content:hover {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.1), rgba(236, 72, 153, 0.03));
  box-shadow: 0 18px 44px rgba(236, 72, 153, 0.28);
}

[data-theme="light"] .contact-item:hover {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.03));
  box-shadow: 0 18px 44px rgba(16, 185, 129, 0.26);
}

/* Light mode - soft color shade on cards by default */
[data-theme="light"] .about-grid .about-card,
[data-theme="light"] .projects-grid .project-card,
[data-theme="light"] .timeline .timeline-content,
[data-theme="light"] .contact-links .contact-item {
  background: linear-gradient(135deg, var(--tint), transparent);
}

[data-theme="light"] .planet {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(6, 182, 212, 0.12));
}

/* Unique accent color per card within the same section */
.about-grid .about-card:nth-child(1) { --accent: #8b5cf6; --glow: rgba(139, 92, 246, 0.35); --tint: rgba(139, 92, 246, 0.14); }
.about-grid .about-card:nth-child(2) { --accent: #06b6d4; --glow: rgba(6, 182, 212, 0.32); --tint: rgba(6, 182, 212, 0.14); }
.about-grid .about-card:nth-child(3) { --accent: #f59e0b; --glow: rgba(245, 158, 11, 0.32); --tint: rgba(245, 158, 11, 0.14); }

.projects-grid .project-card:nth-child(1) { --accent: #8b5cf6; --glow: rgba(139, 92, 246, 0.35); --tint: rgba(139, 92, 246, 0.14); }
.projects-grid .project-card:nth-child(2) { --accent: #06b6d4; --glow: rgba(6, 182, 212, 0.32); --tint: rgba(6, 182, 212, 0.14); }
.projects-grid .project-card:nth-child(3) { --accent: #ec4899; --glow: rgba(236, 72, 153, 0.32); --tint: rgba(236, 72, 153, 0.12); }

.timeline .timeline-item:nth-child(1) .timeline-content { --accent: #8b5cf6; --glow: rgba(139, 92, 246, 0.32); --tint: rgba(139, 92, 246, 0.12); }
.timeline .timeline-item:nth-child(2) .timeline-content { --accent: #06b6d4; --glow: rgba(6, 182, 212, 0.32); --tint: rgba(6, 182, 212, 0.12); }
.timeline .timeline-item:nth-child(3) .timeline-content { --accent: #ec4899; --glow: rgba(236, 72, 153, 0.32); --tint: rgba(236, 72, 153, 0.1); }
.timeline .timeline-item:nth-child(4) .timeline-content { --accent: #10b981; --glow: rgba(16, 185, 129, 0.3); --tint: rgba(16, 185, 129, 0.1); }

.contact-links .contact-item:nth-child(1) { --accent: #06b6d4; --glow: rgba(6, 182, 212, 0.3); --tint: rgba(6, 182, 212, 0.12); }
.contact-links .contact-item:nth-child(2) { --accent: #10b981; --glow: rgba(16, 185, 129, 0.3); --tint: rgba(16, 185, 129, 0.12); }
.contact-links .contact-item:nth-child(3) { --accent: #3b82f6; --glow: rgba(59, 130, 246, 0.32); --tint: rgba(59, 130, 246, 0.12); }
.contact-links .contact-item:nth-child(4) { --accent: #8b5cf6; --glow: rgba(139, 92, 246, 0.32); --tint: rgba(139, 92, 246, 0.12); }

.about-grid .about-card:hover,
.projects-grid .project-card:hover {
  border-color: var(--accent);
  box-shadow: 0 22px 50px var(--glow), 0 0 24px var(--glow);
}

.timeline .timeline-content:hover,
.contact-links .contact-item:hover {
  border-color: var(--accent);
  box-shadow: 0 18px 44px var(--glow), 0 0 24px var(--glow);
}

.about-grid .about-card:hover .about-icon {
  color: var(--accent);
  filter: drop-shadow(0 0 10px var(--glow));
}

.projects-grid .project-card:hover .project-title {
  background: linear-gradient(135deg, var(--accent), #6366f1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.timeline .timeline-content:hover .timeline-date {
  color: var(--accent);
}

.contact-links .contact-item:hover svg {
  color: var(--accent);
  filter: drop-shadow(0 0 8px var(--glow));
}

.timeline .timeline-item:nth-child(1) .timeline-dot { background: #8b5cf6; box-shadow: 0 0 20px rgba(139, 92, 246, 0.5); }
.timeline .timeline-item:nth-child(2) .timeline-dot { background: #06b6d4; box-shadow: 0 0 20px rgba(6, 182, 212, 0.5); }
.timeline .timeline-item:nth-child(3) .timeline-dot { background: #ec4899; box-shadow: 0 0 20px rgba(236, 72, 153, 0.5); }
.timeline .timeline-item:nth-child(4) .timeline-dot { background: #10b981; box-shadow: 0 0 20px rgba(16, 185, 129, 0.5); }

[data-theme="light"] .about-grid .about-card:hover,
[data-theme="light"] .projects-grid .project-card:hover,
[data-theme="light"] .timeline .timeline-content:hover,
[data-theme="light"] .contact-links .contact-item:hover {
  background: linear-gradient(135deg, var(--tint), transparent);
}