/* Modern Portfolio CSS */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #8b5cf6;
  --secondary-dark: #7c3aed;
  --accent: #0ea5e9;
  --accent-dark: #0284c7;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --light: #ffffff;
  --dark: #0f172a;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-dark: linear-gradient(135deg, var(--dark), var(--gray-800));
  
  --radius-sm: 0.5rem;
  --radius: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: 'Inter', 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--light);
  overflow-x: hidden;
  transition: var(--transition);
}

body.dark {
  color: var(--gray-100);
  background: var(--dark);
}

/* Background Patterns */
.bg-pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.05;
  background-image: 
    radial-gradient(circle at 20% 80%, var(--primary) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--secondary) 0%, transparent 50%);
  pointer-events: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Section Spacing */
.section {
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

/* Header Styles */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: var(--transition);
}

body.dark .navbar {
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

body.dark .navbar.scrolled {
  background: rgba(15, 23, 42, 0.98);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 1.5rem;
}

/* Logo */
.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

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

.logo-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 2rem;
}

/* Navigation */
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--gray-600);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  padding: 0.5rem 0;
}

body.dark .nav-link {
  color: var(--gray-300);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Resume Button */
.btn-resume {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

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

/* Theme Toggle */
.theme-toggle {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: none;
  background: var(--gray-100);
  color: var(--gray-600);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 1.2rem;
}

body.dark .theme-toggle {
  background: var(--gray-800);
  color: var(--gray-300);
}

.theme-toggle:hover {
  transform: rotate(15deg);
  background: var(--primary);
  color: white;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  cursor: pointer;
  width: 2rem;
  height: 2rem;
  justify-content: center;
}

.hamburger span {
  width: 1.5rem;
  height: 2px;
  background: var(--gray-600);
  transition: var(--transition);
  border-radius: 2px;
}

body.dark .hamburger span {
  background: var(--gray-300);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section - Optimized Height */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body.dark .hero {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

/* Hero Background Elements */
.hero-bg-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.bg-shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  filter: blur(40px);
}

.shape-1 {
  width: 300px;
  height: 300px;
  top: -150px;
  right: -80px;
  animation: float 20s infinite ease-in-out;
}

.shape-2 {
  width: 250px;
  height: 250px;
  bottom: -100px;
  left: -80px;
  animation: float 25s infinite ease-in-out reverse;
}

.shape-3 {
  width: 150px;
  height: 150px;
  top: 30%;
  right: 15%;
  animation: float 30s infinite ease-in-out;
}

.shape-4 {
  width: 120px;
  height: 120px;
  bottom: 30%;
  left: 15%;
  animation: float 35s infinite ease-in-out reverse;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  33% {
    transform: translateY(-15px) rotate(120deg);
  }
  66% {
    transform: translateY(15px) rotate(240deg);
  }
}

/* Floating Particles */
.floating-particles {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.particle {
  position: absolute;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  animation: float-particle 20s infinite linear;
}

.particle:nth-child(1) {
  width: 6px;
  height: 6px;
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.particle:nth-child(2) {
  width: 4px;
  height: 4px;
  top: 40%;
  left: 80%;
  animation-delay: 5s;
}

.particle:nth-child(3) {
  width: 5px;
  height: 5px;
  top: 60%;
  left: 20%;
  animation-delay: 10s;
}

.particle:nth-child(4) {
  width: 3px;
  height: 3px;
  top: 80%;
  left: 60%;
  animation-delay: 15s;
}

.particle:nth-child(5) {
  width: 4px;
  height: 4px;
  top: 30%;
  left: 40%;
  animation-delay: 20s;
}

.particle:nth-child(6) {
  width: 5px;
  height: 5px;
  top: 70%;
  left: 90%;
  animation-delay: 25s;
}

@keyframes float-particle {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(80px, -40px) rotate(90deg);
  }
  50% {
    transform: translate(40px, 80px) rotate(180deg);
  }
  75% {
    transform: translate(-40px, 40px) rotate(270deg);
  }
  100% {
    transform: translate(0, 0) rotate(360deg);
  }
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  color: white;
}

.hero-badge {
  display: inline-block;
  margin-bottom: 1.5rem;
}

.badge-text {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.intro {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-name-wrapper {
  margin-bottom: 1.2rem;
}

.name {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 0.8rem;
}

.name-text {
  display: block;
}

.name-text.accent {
  background: linear-gradient(to right, #ff6b6b, #feca57);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.name-underline {
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Typewriter Effect */
.typewriter-container {
  margin: 1.5rem 0;
}

.tagline {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.9);
  min-height: 2.5rem;
}

.typed-text {
  font-weight: 500;
}

.cursor {
  display: inline-block;
  margin-left: 2px;
  animation: blink 1s infinite;
}

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

.hero-description {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin: 2rem 0;
}

.stat h3 {
  font-size: 2rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.4rem;
}

.stat p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

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

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-3px);
}

/* Social Links */
.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 2.8rem;
  height: 2.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: white;
  text-decoration: none;
  font-size: 1.1rem;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-link:hover {
  background: white;
  color: var(--primary);
  transform: translateY(-3px);
}

/* Hero Image - Circular Design */
.hero-image {
  position: relative;
}

.image-container {
  position: relative;
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
}

/* Circular Frame */
.circular-frame {
  position: relative;
  width: 200px;
  height: 200px;
  animation: float-image 6s ease-in-out infinite;
}

.circular-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  border: 5px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 12px 25px rgba(0, 0, 0, 0.2),
    inset 0 0 25px rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  padding: 3px;
}

.circular-image::before {
  content: '';
  position: absolute;
  top: -6px;
  left: -6px;
  right: -6px;
  bottom: -6px;
  background: linear-gradient(135deg, 
    var(--primary) 0%, 
    var(--secondary) 50%, 
    var(--accent) 100%);
  border-radius: 50%;
  z-index: -1;
  filter: blur(10px);
  opacity: 0.4;
}

.circular-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  transition: transform 0.6s ease;
}

.circular-image:hover img {
  transform: scale(1.05);
}

.image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110%;
  height: 110%;
  background: radial-gradient(circle, 
    rgba(99, 102, 241, 0.3) 0%, 
    rgba(139, 92, 246, 0.2) 40%, 
    transparent 70%);
  border-radius: 50%;
  z-index: -1;
  filter: blur(8px);
  animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.6;
    transform: translate(-50%, -50%) scale(1.1);
  }
}

@keyframes float-image {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

/* Photo Badge */
.photo-badge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  border: 2px solid white;
  animation: bounce-badge 3s ease-in-out infinite;
  z-index: 2;
}

@keyframes bounce-badge {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

/* Floating Cards */
.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--gray-800);
  z-index: 2;
  animation: float-card 4s ease-in-out infinite;
  font-size: 0.85rem;
}

body.dark .floating-card {
  background: rgba(30, 41, 59, 0.95);
  color: var(--gray-100);
}

.card-1 {
  top: 10%;
  left: -18%;
  animation-delay: 0s;
}

.card-2 {
  top: 50%;
  right: -12%;
  transform: translateY(-50%);
  animation-delay: 1s;
}

.card-3 {
  bottom: 15%;
  left: -12%;
  animation-delay: 2s;
}

@keyframes float-card {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-6px) rotate(3deg);
  }
  75% {
    transform: translateY(6px) rotate(-3deg);
  }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
}

.mouse {
  width: 1.8rem;
  height: 2.5rem;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 1rem;
  display: flex;
  justify-content: center;
  padding-top: 0.4rem;
}

.wheel {
  width: 0.2rem;
  height: 0.4rem;
  background: white;
  border-radius: 0.2rem;
  animation: scroll-wheel 2s infinite;
}

@keyframes scroll-wheel {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(0.8rem);
    opacity: 0;
  }
}

.scroll-indicator p {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.scroll-indicator i {
  font-size: 1.3rem;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
  color: var(--gray-900);
}

body.dark .section-title {
  color: var(--gray-50);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
  margin-bottom: 1.2rem;
}

body.dark .section-subtitle {
  color: var(--gray-400);
}

.section-line {
  width: 70px;
  height: 4px;
  background: var(--gradient-primary);
  margin: 0 auto;
  border-radius: 2px;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-image {
  position: relative;
}

/* About Photo Frame */
.about-photo-frame {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
}

.photo-container {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: var(--light);
  padding: 8px;
}

body.dark .photo-container {
  background: var(--gray-800);
}

.photo-container img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius) - 4px);
  transition: transform 0.6s ease;
}

.photo-container:hover img {
  transform: scale(1.03);
}

.photo-frame-border {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  opacity: 0.3;
  pointer-events: none;
  transition: var(--transition);
}

.photo-container:hover .photo-frame-border {
  opacity: 0.6;
}

.photo-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid var(--primary);
  opacity: 0.5;
  pointer-events: none;
}

.corner-tl {
  top: -5px;
  left: -5px;
  border-right: none;
  border-bottom: none;
  border-radius: 8px 0 0 0;
}

.corner-tr {
  top: -5px;
  right: -5px;
  border-left: none;
  border-bottom: none;
  border-radius: 0 8px 0 0;
}

.corner-bl {
  bottom: -5px;
  left: -5px;
  border-right: none;
  border-top: none;
  border-radius: 0 0 0 8px;
}

.corner-br {
  bottom: -5px;
  right: -5px;
  border-left: none;
  border-top: none;
  border-radius: 0 0 8px 0;
}

.about-badge {
  position: absolute;
  bottom: -15px;
  right: 20px;
  background: var(--gradient-primary);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  box-shadow: var(--shadow);
  z-index: 2;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 1.2rem;
  color: var(--gray-900);
}

body.dark .about-text h3 {
  color: var(--gray-50);
}

.about-text p {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 1.8rem;
}

body.dark .about-text p {
  color: var(--gray-400);
}

.highlight {
  color: var(--primary);
  font-weight: 600;
}

.about-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
  margin: 1.8rem 0;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

body.dark .info-item {
  background: var(--gray-800);
}

.info-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.info-item i {
  font-size: 1.3rem;
  color: var(--primary);
}

.info-item h4 {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 0.2rem;
}

body.dark .info-item h4 {
  color: var(--gray-400);
}

.info-item p {
  font-size: 0.9rem;
  color: var(--gray-700);
  margin: 0;
}

body.dark .info-item p {
  color: var(--gray-300);
}

.about-cta {
  display: flex;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

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

.timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: var(--gradient-primary);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  width: 100%;
}

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

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

.timeline-dot {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2.5rem;
  height: 2.5rem;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
  z-index: 1;
}

.timeline-content {
  width: 45%;
  padding: 1.8rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}

body.dark .timeline-content {
  background: var(--gray-800);
}

.timeline-date {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.timeline-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
  color: var(--gray-900);
}

body.dark .timeline-content h3 {
  color: var(--gray-50);
}

.institution {
  color: var(--gray-500);
  margin-bottom: 0.9rem;
  font-weight: 500;
}

body.dark .institution {
  color: var(--gray-400);
}

.description {
  color: var(--gray-600);
  margin-bottom: 0.9rem;
  line-height: 1.6;
}

body.dark .description {
  color: var(--gray-400);
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.timeline-tags span {
  padding: 0.2rem 0.6rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  border-radius: 1rem;
  font-size: 0.8rem;
  font-weight: 500;
}

/* Skills Section */
.skills-proficiency {
  background: var(--gray-50);
  padding: 2.5rem;
  border-radius: var(--radius);
  margin-bottom: 3.5rem;
  box-shadow: var(--shadow);
}

body.dark .skills-proficiency {
  background: var(--gray-800);
}

.sub-section-title {
  font-size: 1.5rem;
  margin-bottom: 1.8rem;
  color: var(--gray-900);
  text-align: center;
}

body.dark .sub-section-title {
  color: var(--gray-50);
}

.proficiency-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.8rem;
}

.proficiency-item {
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-slow);
}

.proficiency-item.animate {
  opacity: 1;
  transform: translateY(0);
}

.language-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.7rem;
}

.language-name {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 600;
  color: var(--gray-800);
}

body.dark .language-name {
  color: var(--gray-200);
}

.language-name i {
  font-size: 1.1rem;
  color: var(--primary);
}

.language-percent {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
}

.proficiency-bar {
  width: 100%;
  height: 0.7rem;
  background: var(--gray-200);
  border-radius: 1rem;
  overflow: hidden;
  position: relative;
}

body.dark .proficiency-bar {
  background: var(--gray-700);
}

.proficiency-level {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 1rem;
  width: 0;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.proficiency-level::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Skills Categories */
.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.8rem;
}

.category-card {
  padding: 1.8rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

body.dark .category-card {
  background: var(--gray-800);
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.category-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  font-size: 1.3rem;
  color: white;
}

.category-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.9rem;
  color: var(--gray-900);
}

body.dark .category-card h3 {
  color: var(--gray-50);
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
}

.skills-list span {
  padding: 0.2rem 0.6rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  border-radius: 1rem;
  font-size: 0.8rem;
  font-weight: 500;
}

/* Projects Section */
.project-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.7rem 1.3rem;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius);
  color: var(--gray-600);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}

body.dark .filter-btn {
  background: var(--gray-800);
  color: var(--gray-400);
}

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

.filter-btn.active {
  background: var(--gradient-primary);
  color: white;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.8rem;
  margin-bottom: 2.5rem;
}

.project-card {
  background: var(--gray-50);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

body.dark .project-card {
  background: var(--gray-800);
}

.project-card.animate {
  opacity: 1;
  transform: translateY(0);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.project-image {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

.project-link {
  width: 2.8rem;
  height: 2.8rem;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  text-decoration: none;
  font-size: 1.1rem;
  transition: var(--transition);
}

.project-link:hover {
  background: var(--primary);
  color: white;
  transform: rotate(90deg);
}

.project-content {
  padding: 1.3rem;
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

.tag {
  padding: 0.2rem 0.6rem;
  border-radius: 1rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tag-ml {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.tag-ai {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
}

.tag-web {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.tag-other {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.project-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.7rem;
  color: var(--gray-900);
}

body.dark .project-content h3 {
  color: var(--gray-50);
}

.project-content p {
  color: var(--gray-600);
  margin-bottom: 0.9rem;
  line-height: 1.6;
  font-size: 0.9rem;
}

body.dark .project-content p {
  color: var(--gray-400);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.3rem;
}

.project-tech span {
  padding: 0.2rem 0.6rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  border-radius: 1rem;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 0.9rem;
}

.project-links a {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.85rem;
  transition: var(--transition);
}

.project-links a:hover {
  color: var(--primary-dark);
}

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

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.3rem;
}

.contact-card {
  padding: 1.8rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

body.dark .contact-card {
  background: var(--gray-800);
}

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

.contact-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.9rem;
  font-size: 1.3rem;
  color: white;
}

.contact-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
  color: var(--gray-900);
}

body.dark .contact-card h3 {
  color: var(--gray-50);
}

.contact-card p {
  color: var(--gray-600);
  margin-bottom: 0.9rem;
  font-size: 0.9rem;
}

body.dark .contact-card p {
  color: var(--gray-400);
}

.contact-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.85rem;
  transition: var(--transition);
}

.contact-link:hover {
  color: var(--primary-dark);
}

.contact-form {
  background: var(--gray-50);
  padding: 1.8rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

body.dark .contact-form {
  background: var(--gray-800);
}

.form-group {
  margin-bottom: 1.3rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--gray-800);
  background: white;
  transition: var(--transition);
}

body.dark .form-group input,
body.dark .form-group textarea {
  background: var(--gray-700);
  border-color: var(--gray-600);
  color: var(--gray-100);
}

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

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

.social-contact h3 {
  font-size: 1.3rem;
  margin-bottom: 1.8rem;
  color: var(--gray-900);
}

body.dark .social-contact h3 {
  color: var(--gray-50);
}

.social-icons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.3rem;
}

.social-icon {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.9rem 1.3rem;
  background: var(--gray-100);
  border-radius: var(--radius);
  color: var(--gray-700);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9rem;
}

body.dark .social-icon {
  background: var(--gray-800);
  color: var(--gray-300);
}

.social-icon:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-3px);
}

.social-icon i {
  font-size: 1.1rem;
}

/* Footer */
footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 3.5rem 0 1.8rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.5rem;
  margin-bottom: 2.5rem;
}

.footer-logo h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.9rem;
  color: white;
}

.footer-logo h2 span {
  color: var(--primary);
}

.footer-logo p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-links h3,
.footer-contact h3 {
  font-size: 1.1rem;
  color: white;
  margin-bottom: 1.2rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.7rem;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
  color: var(--gray-400);
  font-size: 0.9rem;
}

.footer-contact i {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.8rem;
  border-top: 1px solid var(--gray-800);
}

.footer-bottom p {
  font-size: 0.9rem;
  color: var(--gray-400);
}

.footer-social {
  display: flex;
  gap: 0.9rem;
}

.footer-social a {
  width: 2.3rem;
  height: 2.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-800);
  border-radius: 50%;
  color: var(--gray-400);
  text-decoration: none;
  font-size: 1.1rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: white;
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 1.8rem;
  right: 1.8rem;
  width: 2.8rem;
  height: 2.8rem;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: var(--shadow);
  z-index: 999;
}

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

.back-to-top:hover {
  transform: translateY(-5px) scale(1.1);
  box-shadow: var(--shadow-lg);
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }
  
  .hero-image {
    order: -1;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .timeline-line {
    left: 1.8rem;
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    width: calc(100% - 4rem);
    margin-left: 4rem;
    text-align: left;
  }
  
  .timeline-dot {
    left: 1.8rem;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  /* Adjust circular image for tablet */
  .circular-frame {
    width: 180px;
    height: 180px;
    margin: 0 auto;
  }
  
  .floating-card {
    display: none; /* Hide floating cards on tablet */
  }
  
  .footer-content {
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--light);
    padding: 1.8rem;
    flex-direction: column;
    align-items: center;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
  }
  
  body.dark .nav-links {
    background: var(--dark);
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .hamburger {
    display: flex;
  }
  
  .name {
    font-size: 2.5rem;
  }
  
  .tagline {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .about-info {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .proficiency-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-categories {
    grid-template-columns: 1fr;
  }
  
  /* Adjust circular image for mobile */
  .circular-frame {
    width: 160px;
    height: 160px;
  }
  
  .circular-image {
    border-width: 4px;
  }
  
  .photo-badge {
    width: 32px;
    height: 32px;
    font-size: 0.85rem;
    bottom: 8px;
    right: 8px;
  }
  
  .hero-stats {
    gap: 1.5rem;
    flex-wrap: wrap;
  }
  
  .stat h3 {
    font-size: 1.8rem;
  }
  
  .section {
    padding: 4rem 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .about-photo-frame {
    max-width: 280px;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 3rem 0;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .name {
    font-size: 2rem;
  }
  
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    width: calc(100% - 3.5rem);
    margin-left: 3.5rem;
  }
  
  /* Adjust circular image for small mobile */
  .circular-frame {
    width: 140px;
    height: 140px;
  }
  
  .circular-image {
    border-width: 3px;
  }
  
  .photo-badge {
    width: 28px;
    height: 28px;
    font-size: 0.8rem;
  }
  
  .hero-stats {
    gap: 1.2rem;
  }
  
  .stat h3 {
    font-size: 1.6rem;
  }
  
  .hero-description {
    font-size: 0.95rem;
  }
  
  .tagline {
    font-size: 1rem;
  }
  
  .about-photo-frame {
    max-width: 240px;
  }
  
  .btn {
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
  }
}

/* Extra small devices */
@media (max-width: 360px) {
  .circular-frame {
    width: 120px;
    height: 120px;
  }
  
  .circular-image {
    border-width: 2px;
  }
  
  .name {
    font-size: 1.8rem;
  }
  
  .hero-stats {
    flex-direction: column;
    align-items: center;
  }
  
  .about-photo-frame {
    max-width: 200px;
  }
  
  .container {
    padding: 0 1rem;
  }
}

/* Loading Animation */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

body.dark .loading {
  background: var(--dark);
}

.loading.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader {
  width: 45px;
  height: 45px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}