/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Light theme colors - Modern neutral palette */
  --primary-bg: #f8fafc;
  --secondary-bg: #ffffff;
  --accent-bg: #f1f5f9;
  --primary-text: #0f172a;
  --secondary-text: #475569;
  --accent-text: #0f766e;
  --border-color: #e2e8f0;

  /* Accent colors */
  --mint: #14b8a6;
  --lilac: #8b5cf6;
  --grey: #64748b;
  --sherbet: #f59e0b;
  --coral: #ef4444;

  /* Solid colors for clean design */

  /* Typography */
  --font-family: 'Exo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-base: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-base: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

/* Dark theme */
[data-theme='dark'] {
  --primary-bg: #0f1419;
  --secondary-bg: #1a1f2e;
  --accent-bg: #2d3748;
  --primary-text: #f7fafc;
  --secondary-text: #a0aec0;
  --accent-text: #60a5fa;
  --border-color: #2d3748;

  /* Darker accent colors */
  --mint: #2d3748;
  --lilac: #9f7aea;
  --grey: #6b7280;
  --sherbet: #f6e05e;
  --coral: #fc8181;
}

body {
  font-family: var(--font-family);
  background-color: var(--primary-bg);
  color: var(--primary-text);
  line-height: 1.6;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-base);
}

[data-theme='dark'] .nav {
  background: rgba(15, 20, 25, 0.9);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-base) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

/* Animated Logo Styles */
.nav-logo {
  position: relative;
}

.logo-container {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: all var(--transition-base);
}

.logo-container:hover {
  transform: scale(1.05);
}

.logo-svg {
  width: 120px;
  height: 48px;
  margin-right: var(--spacing-sm);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--accent-text);
  margin: 0;
}

/* Advanced SVG Animation Styles */
/* Gradient Definitions */
.gradient-stop-1 {
  stop-color: var(--accent-text);
  stop-opacity: 0.8;
  animation: gradient-shift-1 10s ease-in-out infinite alternate;
}

.gradient-stop-2 {
  stop-color: var(--mint);
  stop-opacity: 0.6;
  animation: gradient-shift-2 10s ease-in-out infinite alternate;
}

.gradient-stop-3 {
  stop-color: var(--coral);
  stop-opacity: 0.4;
  animation: gradient-shift-3 10s ease-in-out infinite alternate;
}

@keyframes gradient-shift-1 {
  0% {
    stop-color: var(--accent-text);
  }
  100% {
    stop-color: var(--mint);
  }
}

@keyframes gradient-shift-2 {
  0% {
    stop-color: var(--mint);
  }
  100% {
    stop-color: var(--coral);
  }
}

@keyframes gradient-shift-3 {
  0% {
    stop-color: var(--coral);
  }
  100% {
    stop-color: var(--accent-text);
  }
}

.letter-gradient-1 {
  stop-color: var(--accent-text);
  animation: letter-gradient-flow 15s ease-in-out infinite;
}

.letter-gradient-2 {
  stop-color: var(--mint);
  animation: letter-gradient-flow 15s ease-in-out infinite;
  animation-delay: 5s;
}

.letter-gradient-3 {
  stop-color: var(--coral);
  animation: letter-gradient-flow 15s ease-in-out infinite;
  animation-delay: 10s;
}

@keyframes letter-gradient-flow {
  0%,
  100% {
    stop-opacity: 1;
  }
  50% {
    stop-opacity: 0.3;
  }
}

/* Background Elements */
.logo-bg-main {
  transition: all var(--transition-base);
}

.logo-morph {
  animation: logo-morph 20s ease-in-out infinite;
  transform-origin: center;
}

@keyframes logo-morph {
  0%,
  100% {
    r: 18;
    opacity: 0.1;
  }
  25% {
    r: 22;
    opacity: 0.15;
  }
  50% {
    r: 16;
    opacity: 0.08;
  }
  75% {
    r: 20;
    opacity: 0.12;
  }
}

/* Orbiting Elements */
.logo-orbit {
  fill: var(--mint);
  animation: orbit 20s linear infinite;
  transform-origin: 60px 24px;
}

.logo-orbit-1 {
  animation-duration: 16s;
}
.logo-orbit-2 {
  animation-duration: 24s;
  animation-direction: reverse;
}
.logo-orbit-3 {
  animation-duration: 30s;
}
.logo-orbit-4 {
  animation-duration: 12s;
  animation-direction: reverse;
}

@keyframes orbit {
  0% {
    transform: rotate(0deg) translateX(20px) rotate(0deg);
  }
  100% {
    transform: rotate(360deg) translateX(20px) rotate(-360deg);
  }
}

/* Floating Shapes */
.logo-float {
  fill: var(--accent-text);
  animation: float 12s ease-in-out infinite;
}

.logo-float-1 {
  animation-delay: 0s;
  animation-duration: 16s;
}
.logo-float-2 {
  animation-delay: 2s;
  animation-duration: 12s;
}
.logo-float-3 {
  animation-delay: 4s;
  animation-duration: 20s;
}
.logo-float-4 {
  animation-delay: 6s;
  animation-duration: 14s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  25% {
    transform: translateY(-3px) rotate(90deg);
  }
  50% {
    transform: translateY(-1px) rotate(180deg);
  }
  75% {
    transform: translateY(-2px) rotate(270deg);
  }
}

/* Interactive Paths */
.logo-path {
  stroke: var(--mint);
  transition: all var(--transition-base);
}

/* Letter Groups - Individual Hover Effects */
.letter-group {
  cursor: pointer;
  transition: all var(--transition-fast);
}

.letter-hover-zone {
  fill: var(--accent-text);
  transition: all var(--transition-fast);
}

.letter-group:hover .letter-hover-zone {
  opacity: 0.1;
  r: 12;
}

.letter-group:hover .logo-letter {
  font-size: 22;
}

.logo-letter {
  fill: var(--accent-text);
  font-family: 'Exo', sans-serif;
  font-weight: 700;
  transition: all var(--transition-base);
  cursor: pointer;
}

/* Dynamic Particles */
.logo-particle {
  fill: var(--mint);
  animation: particle-dance 8s ease-in-out infinite;
}

.logo-particle-1 {
  animation-delay: 0s;
  animation-duration: 12s;
}
.logo-particle-2 {
  animation-delay: 1s;
  animation-duration: 10s;
}
.logo-particle-3 {
  animation-delay: 2s;
  animation-duration: 14s;
}
.logo-particle-4 {
  animation-delay: 3s;
  animation-duration: 8s;
}
.logo-particle-5 {
  animation-delay: 4s;
  animation-duration: 16s;
}
.logo-particle-6 {
  animation-delay: 5s;
  animation-duration: 11s;
}

@keyframes particle-dance {
  0%,
  100% {
    opacity: 0.8;
    transform: scale(1) translateY(0px);
  }
  25% {
    opacity: 0.4;
    transform: scale(1.3) translateY(-2px);
  }
  50% {
    opacity: 1;
    transform: scale(0.8) translateY(1px);
  }
  75% {
    opacity: 0.6;
    transform: scale(1.1) translateY(-1px);
  }
}

/* Container Hover Effects */
.logo-container:hover .logo-bg-main {
  opacity: 0.2;
  r: 25;
}

.logo-container:hover .logo-orbit {
  fill: var(--coral);
  animation-play-state: paused;
}

.logo-container:hover .logo-float {
  fill: var(--sherbet);
  animation-duration: 4s;
}

.logo-container:hover .logo-path {
  opacity: 0.8;
  stroke-width: 2;
  stroke-dasharray: 5, 5;
  animation: path-flow 1s linear infinite;
}

@keyframes path-flow {
  0% {
    stroke-dashoffset: 0;
  }
  100% {
    stroke-dashoffset: 10;
  }
}

.logo-container:hover .logo-particle {
  fill: var(--coral);
  animation-duration: 3s;
}

/* Hover effect for letters */
.logo-letter-s {
  animation-delay: 0s;
}
.logo-letter-h {
  animation-delay: 0.1s;
}
.logo-letter-v {
  animation-delay: 0.2s;
}
.logo-letter-e {
  animation-delay: 0.3s;
}
.logo-letter-t {
  animation-delay: 0.4s;
}
.logo-letter-a {
  animation-delay: 0.5s;
}
.logo-letter-m {
  animation-delay: 0.6s;
}

.logo-container:hover .logo-letter-s,
.logo-container:hover .logo-letter-h,
.logo-container:hover .logo-letter-v,
.logo-container:hover .logo-letter-e,
.logo-container:hover .logo-letter-t,
.logo-container:hover .logo-letter-a,
.logo-container:hover .logo-letter-m {
  animation: letter-bounce 0.6s ease-in-out;
}

@keyframes letter-bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
}

/* Dark mode adjustments */
[data-theme='dark'] .logo-bg {
  opacity: 0.2;
}

[data-theme='dark'] .logo-container:hover .logo-bg {
  opacity: 0.3;
}

[data-theme='dark'] .nav-link:hover {
  color: #60a5fa;
}

[data-theme='dark'] .contact-value:hover {
  color: #3b82f6;
}

[data-theme='dark'] .experience-card-mini:hover {
  border-color: #60a5fa;
}

[data-theme='dark'] .btn-secondary:hover {
  border-color: #60a5fa;
  background: rgba(96, 165, 250, 0.1);
}

[data-theme='dark'] .project-link:hover {
  background: #3b82f6;
  color: white;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-link {
  text-decoration: none;
  color: var(--primary-text);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-text);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--accent-text);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.theme-toggle {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-base);
  padding: var(--spacing-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-lg);
}

.theme-toggle:hover {
  border-color: var(--mint);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  background: radial-gradient(ellipse at top, rgba(143, 223, 221, 0.1) 0%, transparent 50%);
  position: relative;
  overflow: hidden;
  font-family: 'Exo', sans-serif;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(200, 162, 200, 0.1) 0%, transparent 70%);
  animation: float 20s ease-in-out infinite;
  z-index: -1;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(30px, -30px) rotate(120deg);
  }
  66% {
    transform: translate(-20px, 20px) rotate(240deg);
  }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-3xl);
  align-items: center;
  max-width: 1200px;
  width: 100%;
}

.hero-text {
  text-align: left;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  font-family: 'Exo', sans-serif;
  letter-spacing: 1px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease-out 0.2s forwards;
}

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

.title-line {
  display: block;
}

.hero-name {
  color: var(--accent-text);
}

.hero-subtitle {
  color: var(--secondary-text);
  font-size: var(--font-size-2xl);
  font-weight: 500;
  font-family: 'Exo', sans-serif;
  letter-spacing: 0.5px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease-out 0.4s forwards;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--secondary-text);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease-out 0.6s forwards;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-base);
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease-out 0.8s forwards;
}

.btn {
  display: inline-block;
  padding: var(--spacing-base) var(--spacing-xl);
  border-radius: var(--radius-base);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transform: perspective(1000px) rotateX(0deg);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.6s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: perspective(1000px) rotateX(-2deg) translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.btn:active {
  transform: perspective(1000px) rotateX(1deg) translateY(0px);
  transition: all 0.1s ease;
}

.btn-primary {
  background: var(--accent-text);
  color: white;
  box-shadow: var(--shadow-base);
}

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

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

.btn-secondary:hover {
  border-color: var(--mint);
  background: rgba(143, 223, 221, 0.1);
}

.hero-image {
  position: relative;
}

.image-container {
  position: relative;
  display: inline-block;
}

.image-container {
  position: relative;
  width: 300px;
  height: 300px;
  perspective: 1000px;
}

.profile-image {
  width: 300px;
  height: 300px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  object-position: center 5%;
  box-shadow: var(--shadow-xl);
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  opacity: 0;
  transform: translateX(30px);
  animation: slideInRight 1s ease-out 0.5s forwards;
  position: relative;
}

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

.profile-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  background: linear-gradient(45deg, transparent 30%, rgba(15, 118, 110, 0.1) 50%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.profile-image:hover {
  transform: scale(1.08) rotate(3deg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), 0 0 20px rgba(15, 118, 110, 0.3);
}

.profile-image:hover::after {
  opacity: 1;
}

.profile-image:active {
  transform: scale(1.03) rotate(1deg);
  transition: all 0.2s ease;
}

/* Theme-specific image visibility with smooth transitions */
.profile-image-light,
.profile-image-dark {
  position: absolute;
  top: 0;
  left: 0;
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transform: scale(1);
}

/* Light theme: show light image, hide dark image */
.profile-image-light {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateZ(0);
}

.profile-image-dark {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95) translateZ(0);
}

/* Dark theme: show dark image, hide light image */
[data-theme='dark'] .profile-image-light {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95) translateZ(0);
}

[data-theme='dark'] .profile-image-dark {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateZ(0);
}

/* Override the animation opacity for theme switching */
.profile-image-light.profile-image,
.profile-image-dark.profile-image {
  animation: slideInRight 1s ease-out 0.5s forwards;
}

/* Ensure hover effects work smoothly with theme transitions */
.profile-image-light:hover,
.profile-image-dark:hover {
  transform: scale(1.08) rotate(3deg) translateZ(0);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), 0 0 20px rgba(15, 118, 110, 0.3);
}

.profile-image-light:active,
.profile-image-dark:active {
  transform: scale(1.03) rotate(1deg) translateZ(0);
  transition: all 0.2s ease;
}

/* Smooth crossfade effect for theme switching */
.profile-image-light,
.profile-image-dark {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  will-change: opacity, transform;
}

.image-decoration {
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  background: var(--mint);
  border-radius: 50%;
  z-index: -1;
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.4;
  }
}

.hero-scroll {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--secondary-text);
  opacity: 0;
  animation: fadeInFloat 2s ease-out 1.5s forwards;
  cursor: pointer;
  transition: all 0.3s ease;
}

.hero-scroll:hover {
  color: var(--accent-text);
  transform: translateX(-50%) translateY(-5px);
}

.hero-scroll::after {
  content: '';
  width: 2px;
  height: 30px;
  background: linear-gradient(to bottom, var(--accent-text), transparent);
  border-radius: 1px;
  margin-top: var(--spacing-xs);
  animation: scrollIndicator 2s ease-in-out infinite;
}

@keyframes fadeInFloat {
  to {
    opacity: 1;
  }
}

@keyframes scrollIndicator {
  0%,
  100% {
    opacity: 1;
    transform: translateY(0);
  }
  50% {
    opacity: 0.5;
    transform: translateY(8px);
  }
}

/* Professional Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-text), var(--mint));
  z-index: 1000;
  transition: width 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Professional Profile Pulse Animation */
@keyframes profilePulse {
  0% {
    transform: scale(1) rotate(0deg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), 0 0 20px rgba(15, 118, 110, 0.3);
  }
  50% {
    transform: scale(1.15) rotate(2deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3), 0 0 30px rgba(15, 118, 110, 0.5);
  }
  100% {
    transform: scale(1) rotate(0deg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2), 0 0 20px rgba(15, 118, 110, 0.3);
  }
}

/* Enhanced Typing Animation */
.hero-subtitle {
  position: relative;
}

.hero-subtitle::after {
  content: '|';
  color: var(--accent-text);
  animation: blink 1s infinite;
  margin-left: 2px;
}

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

/* Professional Navigation Enhancement */
.nav-link {
  position: relative;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-text);
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transform: translateX(-50%);
}

.nav-link:hover::before,
.nav-link.active::before {
  width: 100%;
}

.nav-link:hover {
  color: var(--accent-text);
  transform: translateY(-2px);
}

/* Subtle Background Animation for Hero */
.hero::before {
  animation: backgroundFloat 20s ease-in-out infinite;
}

@keyframes backgroundFloat {
  0%,
  100% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  25% {
    transform: translate(-45%, -55%) rotate(90deg);
  }
  50% {
    transform: translate(-55%, -45%) rotate(180deg);
  }
  75% {
    transform: translate(-50%, -50%) rotate(270deg);
  }
}

/* Professional Button Enhancements */
.btn-primary {
  background: linear-gradient(135deg, var(--accent-text) 0%, var(--mint) 100%);
  box-shadow: 0 4px 15px rgba(15, 118, 110, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--mint) 0%, var(--accent-text) 100%);
  box-shadow: 0 8px 25px rgba(15, 118, 110, 0.4);
  color: white;
}

.btn-secondary {
  border: 2px solid var(--accent-text);
  background: transparent;
  color: var(--accent-text);
  position: relative;
}

.btn-secondary::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: var(--accent-text);
  transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: -1;
}

.btn-secondary:hover::after {
  width: 100%;
}

.btn-secondary:hover {
  color: white;
  border-color: var(--accent-text);
}

/* Dark Mode Professional Adjustments */
[data-theme='dark'] .btn-primary {
  background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
  box-shadow: 0 4px 15px rgba(96, 165, 250, 0.3);
}

[data-theme='dark'] .btn-primary:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
  box-shadow: 0 8px 25px rgba(96, 165, 250, 0.4);
  color: white;
}

[data-theme='dark'] .btn-secondary {
  border-color: #60a5fa;
  color: #60a5fa;
}

[data-theme='dark'] .btn-secondary::after {
  background: #60a5fa;
}

[data-theme='dark'] .btn-secondary:hover {
  color: white;
  border-color: #60a5fa;
}

/* Professional Mobile Optimizations */
@media (max-width: 768px) {
  .hero-title {
    font-size: var(--font-size-3xl);
    animation-delay: 0.1s;
  }

  .hero-subtitle {
    font-size: var(--font-size-lg);
    animation-delay: 0.2s;
  }

  .hero-description {
    animation-delay: 0.3s;
  }

  .hero-cta {
    animation-delay: 0.4s;
  }

  .image-container {
    width: 250px;
    height: 250px;
  }

  .profile-image {
    width: 250px;
    height: 250px;
    animation-delay: 0.3s;
  }

  .profile-image-light:hover,
  .profile-image-dark:hover {
    transform: scale(1.05) rotate(1deg) translateZ(0);
  }

  .btn:hover {
    transform: perspective(1000px) rotateX(0deg) translateY(-1px);
  }

  .nav-link:hover {
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

.scroll-text {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.scroll-indicator {
  width: 2px;
  height: 20px;
  background: var(--accent-text);
  border-radius: 1px;
}

/* Section Styles */
section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--accent-text);
  border-radius: 2px;
}

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

.about-content {
  margin: 0 auto;
}

.about-text p {
  font-size: var(--font-size-lg);
  color: var(--secondary-text);
  margin-bottom: var(--spacing-lg);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-base);
  margin-top: var(--spacing-lg);
}

.skill-category {
  background: var(--primary-bg);
  padding: var(--spacing-sm);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base);
}

.skill-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.skill-category h3 {
  color: var(--accent-text);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
  padding: inherit;
}

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

.skill-category li {
  color: var(--primary-text);
  margin-bottom: var(--spacing-xs);
  padding-left: var(--spacing-sm);
  font-size: var(--font-size-sm);
  position: relative;
}

.skill-category li::before {
  content: '▶';
  position: absolute;
  left: -4px;
  color: var(--mint);
  font-size: var(--font-size-sm);
}

/* Experience Section */
.section-description {
  text-align: center;
  font-size: var(--font-size-lg);
  color: var(--secondary-text);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.experience-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.experience-card-mini {
  background: var(--secondary-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  position: relative;
  cursor: default;
  transition: all var(--transition-base);
  overflow: hidden;
}

.experience-card-mini:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-text);
}

.experience-card-mini[data-job='lead-backend'] {
  border-color: var(--accent-text);
  background: linear-gradient(135deg, var(--accent-bg) 0%, var(--secondary-bg) 100%);
}

.job-mini-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.job-mini-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--primary-text);
  margin-bottom: var(--spacing-xs);
  flex: 1;
  min-width: 200px;
}

.job-mini-duration {
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
  font-weight: 500;
  white-space: nowrap;
}

.current-badge-mini {
  background: var(--accent-text);
  color: white;
  padding: 2px var(--spacing-xs);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  white-space: nowrap;
}

.job-mini-company {
  font-size: var(--font-size-base);
  color: var(--accent-text);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.job-mini-summary {
  font-size: var(--font-size-sm);
  color: var(--secondary-text);
  line-height: 1.6;
  margin-bottom: var(--spacing-base);
}

.job-mini-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-base);
}

.tech-tag-mini {
  background: rgba(156, 163, 175, 0.8);
  color: white;
  padding: 2px var(--spacing-xs);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 1px solid var(--border-color);
}

.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 118, 110, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-base);
  border-radius: var(--radius-lg);
}

[data-theme='dark'] .card-overlay {
  background: rgba(59, 130, 246, 0.9);
}

.experience-card-mini:hover .card-overlay {
  opacity: 1;
}

.view-details {
  color: white;
  font-size: var(--font-size-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.experience-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-text);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-2xl);
  padding-left: 60px;
}

.timeline-marker {
  position: absolute;
  left: 8px;
  top: 0;
  width: 24px;
  height: 24px;
  background: var(--mint);
  border: 4px solid var(--primary-bg);
  border-radius: 50%;
  box-shadow: var(--shadow-base);
}

.timeline-content {
  background: var(--secondary-bg);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base);
}

.timeline-content:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.job-header {
  margin-bottom: var(--spacing-base);
}

.job-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-text);
  margin-bottom: var(--spacing-xs);
}

.job-company {
  color: var(--accent-text);
  font-weight: 500;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.job-duration {
  color: var(--secondary-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.job-responsibilities {
  list-style: none;
}

.job-responsibilities li {
  color: var(--secondary-text);
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-base);
  position: relative;
}

.job-responsibilities li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--mint);
  font-weight: bold;
}

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

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.project-card {
  background: var(--primary-bg);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--border-color);
}

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

[data-theme='dark'] .project-card:hover {
  border-color: #60a5fa;
}

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

.project-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-text);
}

.project-link {
  color: var(--accent-text);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--accent-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.project-link:hover {
  background: var(--accent-text);
  color: white;
}

.project-description {
  color: var(--secondary-text);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tech-tag {
  background: rgba(156, 163, 175, 0.8);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

/* Contact Section */
.contact-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-text {
  margin-bottom: var(--spacing-2xl);
}

.contact-text p {
  font-size: var(--font-size-lg);
  color: var(--secondary-text);
  line-height: 1.7;
}

.contact-info {
  display: grid;
  gap: var(--spacing-base);
}

.contact-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-base);
  background: var(--secondary-bg);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
}

.contact-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-sm);
}

.contact-label {
  font-weight: 600;
  color: var(--primary-text);
}

.contact-value {
  color: var(--accent-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-value:hover {
  color: var(--mint);
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--accent-text);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  background: var(--mint);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.scroll-to-top:active {
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

.scroll-to-top svg {
  transition: transform 0.3s ease;
}

.scroll-to-top:hover svg {
  transform: translateY(-2px);
}

/* Dark theme adjustments */
[data-theme='dark'] .scroll-to-top {
  background: var(--accent-text);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

[data-theme='dark'] .scroll-to-top:hover {
  background: var(--mint);
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-xl);
  }

  .hero-text {
    text-align: center;
    order: 2;
  }

  .hero-image {
    order: 1;
  }

  .image-container {
    width: 250px;
    height: 250px;
  }

  .profile-image {
    width: 250px;
    height: 250px;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-cta {
    justify-content: center;
    flex-direction: column;
    gap: var(--spacing-base);
  }

  .hero-description {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
  }

  .hero {
    padding-top: calc(110px + var(--spacing-xl));
    padding-bottom: var(--spacing-2xl);
    padding-left: var(--spacing-base);
    padding-right: var(--spacing-base);
  }

  .hero-scroll {
    display: none;
  }

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

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }

  .timeline::before {
    display: none;
  }

  .timeline-item {
    padding-left: 0;
  }

  .timeline-marker {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-description {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-base);
  }

  .image-container {
    width: 200px;
    height: 200px;
  }

  .profile-image {
    width: 200px;
    height: 200px;
  }

  .hero-cta .btn {
    width: 100%;
    text-align: center;
  }

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

  .scroll-to-top {
    width: 45px;
    height: 45px;
    bottom: 1.5rem;
    right: 1.5rem;
  }

  .scroll-to-top svg {
    width: 20px;
    height: 20px;
  }

  .container {
    padding: 0 var(--spacing-base);
  }

  .nav-container {
    padding: var(--spacing-sm) var(--spacing-base);
  }

  section {
    padding: var(--spacing-xl) 0;
  }

  .hero {
    padding-top: calc(100px + var(--spacing-base));
    padding-bottom: var(--spacing-xl);
    padding-left: var(--spacing-base);
    padding-right: var(--spacing-base);
    min-height: auto;
  }

  .hero-content {
    gap: var(--spacing-base);
  }

  .hero-scroll {
    display: none;
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-base);
    font-size: var(--font-size-sm);
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-base);
    font-size: var(--font-size-sm);
  }
}