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

:root {
  /* Color Palette */
  --primary-color: #ff4757;
  --primary-dark: #ff3742;
  --primary-light: #ff6b7a;
  --secondary-color: #2f3542;
  --accent-color: #3742fa;
  --text-primary: #2f3542;
  --text-secondary: #57606f;
  --text-light: #a4b0be;
  --background: #ffffff;
  --surface: #f8f9fa;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #ff4757 0%, #ff3742 50%, #ff6b7a 100%);
  --gradient-secondary: linear-gradient(135deg, #2f3542 0%, #57606f 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);

  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 30px rgba(255, 71, 87, 0.3);

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

  /* Spacing */
  --section-padding: 120px 0;
  --container-padding: 0 2rem;

  /* Animations */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-primary);
  overflow-x: hidden;
  background: var(--background);
}

/* Animated Background */
.animated-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #ffffff 0%, #ffffff 100%);
  overflow: hidden;
}

.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
}

.shape {
  position: absolute;
  background: var(--gradient-primary);
  border-radius: 50%;
  opacity: 0.1;
  animation: float 20s infinite ease-in-out;
}

.shape-1 {
  width: 80px;
  height: 80px;
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.shape-2 {
  width: 120px;
  height: 120px;
  top: 60%;
  right: 10%;
  animation-delay: 5s;
}

.shape-3 {
  width: 60px;
  height: 60px;
  top: 80%;
  left: 20%;
  animation-delay: 10s;
}

.shape-4 {
  width: 100px;
  height: 100px;
  top: 30%;
  right: 30%;
  animation-delay: 15s;
}

.shape-5 {
  width: 140px;
  height: 140px;
  top: 10%;
  left: 60%;
  animation-delay: 8s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-20px) rotate(90deg);
  }
  50% {
    transform: translateY(-40px) rotate(180deg);
  }
  75% {
    transform: translateY(-20px) rotate(270deg);
  }
}

#particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

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

.glass-nav {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: all var(--transition-normal);
}

nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  font-family: var(--font-mono);
  transition: all var(--transition-normal);
}

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

.glow-text {
  text-shadow: 0 0 20px rgba(255, 71, 87, 0.5);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: all var(--transition-normal);
  padding: 0.5rem 0;
}

.nav-link::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

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

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

.mobile-menu {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger-line {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: all var(--transition-normal);
  border-radius: 2px;
}

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

.mobile-menu.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-primary);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
  animation: float 20s ease-in-out infinite;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--container-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-greeting {
  margin-bottom: 1rem;
  opacity: 0;
  animation: slideInUp 1s ease 0.2s forwards;
}

.greeting-text {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.title-line {
  display: block;
  opacity: 0;
  animation: slideInLeft 1s ease forwards;
}

.title-line:nth-child(1) {
  animation-delay: 0.4s;
}

.title-line:nth-child(2) {
  animation-delay: 0.6s;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  font-weight: 600;
  min-height: 2rem;
  opacity: 0;
  animation: slideInUp 1s ease 0.8s forwards;
}

.typing-text {
  border-right: 2px solid rgba(255, 255, 255, 0.8);
}

.cursor {
  animation: blink 1s infinite;
}

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

.hero-description {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 3rem;
  line-height: 1.7;
  opacity: 0;
  animation: slideInUp 1s ease 1s forwards;
}

.cta-buttons {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3rem;
  opacity: 0;
  animation: slideInUp 1s ease 1.2s forwards;
}

.btn {
  padding: 15px 35px;
  border: none;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  z-index: 1;
}

.btn-primary {
  background: #fff;
  color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-3px);
}

.glow-btn {
  position: relative;
}

.btn-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  border-radius: 50px;
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.glow-btn:hover .btn-glow {
  opacity: 0.2;
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.2;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.4;
  }
}

.hero-stats {
  display: flex;
  gap: 2rem;
  opacity: 0;
  animation: slideInUp 1s ease 1.4s forwards;
}

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

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-image {
  text-align: center;
  opacity: 0;
  animation: slideInRight 1s ease 0.6s forwards;
}

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

.avatar-glow {
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  opacity: 0.3;
  animation: pulse-avatar 4s ease-in-out infinite;
  z-index: -1;
}

@keyframes pulse-avatar {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.5;
  }
}

.hero-avatar {
  width: 400px;
  height: 400px;
  border-radius: 50%;
  overflow: hidden;
  background: #fff;
  padding: 10px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 2;
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.floating-icons {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.floating-icon {
  position: absolute;
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  animation: float-icon 6s ease-in-out infinite;
  animation-delay: var(--delay);
}

.floating-icon:nth-child(1) {
  top: 10%;
  right: -10%;
}

.floating-icon:nth-child(2) {
  bottom: 20%;
  left: -15%;
}

.floating-icon:nth-child(3) {
  top: 60%;
  right: -20%;
}

.floating-icon:nth-child(4) {
  top: 30%;
  left: -10%;
}

@keyframes float-icon {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: slideInUp 1s ease 2s forwards;
}

.scroll-arrow {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  animation: bounce 2s infinite;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.scroll-arrow:hover {
  border-color: #fff;
  color: #fff;
  transform: scale(1.1);
}

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

/* Animations */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Section Styles */
.section-padding {
  padding: var(--section-padding);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--container-padding);
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-tag {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

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

.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 5rem;
  align-items: start;
}

.about-stats {
  display: grid;
  gap: 2rem;
}

.stat-card {
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
}

.stat-card:hover {
  transform: translateY(-10px);
}

.stat-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: #fff;
  font-size: 2rem;
}

.stat-card .stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.5rem;
}

.stat-card .stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.card-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  border-radius: 20px;
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.stat-card:hover .card-glow {
  opacity: 0.1;
}

.about-text {
  font-size: 1.1rem;
  line-height: 1.8;
}

.text-block {
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-slow);
}

.text-block.visible {
  opacity: 1;
  transform: translateY(0);
}

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

.quote-block {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--gradient-glass);
  border-radius: 15px;
  border-left: 4px solid var(--primary-color);
}

.quote-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

blockquote {
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
}

.skill-card {
  padding: 3rem 2.5rem;
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  cursor: pointer;
}

.skill-card:hover {
  transform: translateY(-15px) rotateY(5deg);
}

.skill-icon {
  width: 100px;
  height: 100px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  color: #fff;
  font-size: 2.5rem;
  transition: all var(--transition-normal);
}

.skill-card:hover .skill-icon {
  transform: scale(1.1) rotateY(-5deg);
}

.skill-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.skill-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.skill-progress {
  width: 100%;
  height: 6px;
  background: rgba(255, 71, 87, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 1.5rem;
}

.progress-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 3px;
  width: 0;
  transition: width 2s ease;
}

/* Courses Section */
.courses {
  background: var(--surface);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 3rem;
}

.course-card {
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
  cursor: pointer;
}

.course-card:hover {
  transform: translateY(-15px);
}

.course-image {
  height: 250px;
  position: relative;
  overflow: hidden;
}

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

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

.course-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

.play-button {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2rem;
  transform: scale(0.8);
  transition: transform var(--transition-normal);
}

.course-card:hover .play-button {
  transform: scale(1);
}

.course-content {
  padding: 2.5rem;
}

.course-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.course-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 1.5rem 0;
  color: var(--text-light);
  font-size: 0.9rem;
}

.course-link {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 12px 25px;
  background: var(--gradient-primary);
  color: #fff;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.course-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* Upcoming Courses */
.upcoming-card {
  opacity: 0.8;
}

.coming-soon-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
}

.coming-soon-badge {
  padding: 1rem 2rem;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Testimonials */
.testimonials {
  background: var(--surface);
}

.testimonials-container {
  max-width: 900px;
  margin: 0 auto;
}

.testimonials-slider {
  position: relative;
  margin-bottom: 3rem;
}

.testimonial {
  display: none;
  padding: 3rem;
  text-align: center;
  position: relative;
}

.testimonial.active {
  display: block;
  animation: fadeInScale 0.6s ease;
}

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

.testimonial-content {
  position: relative;
  z-index: 2;
}

.quote-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 2rem;
  opacity: 0.3;
}

.testimonial-text {
  font-size: 1.3rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.8rem;
  font-weight: 700;
}

.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-info {
  text-align: left;
}

.author-info strong {
  display: block;
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.author-info small {
  color: var(--text-light);
}

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.slider-btn {
  width: 50px;
  height: 50px;
  border: none;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.slider-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-glow);
}

.slider-dots {
  display: flex;
  gap: 1rem;
}

.slider-dot {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: rgba(255, 71, 87, 0.3);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.slider-dot.active {
  background: var(--primary-color);
  transform: scale(1.2);
}

/* Contact Section */
.contact {
  background: var(--gradient-primary);
  color: #fff;
}

.contact .section-tag {
  background: rgba(255, 255, 255, 0.2);
}

.contact .section-title {
  color: #fff;
}

.contact .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-form {
  padding: 3rem;
  position: relative;
}

.form-group {
  margin-bottom: 2rem;
  position: relative;
}

.form-group label {
  display: block;
  margin-bottom: 0.8rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1rem;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.15);
}

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

.input-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.form-group input:focus + .input-glow,
.form-group textarea:focus + .input-glow {
  opacity: 1;
}

.contact-info-card {
  padding: 3rem;
  position: relative;
}

.contact-info-card h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2.5rem;
  color: #fff;
}

.contact-items {
  margin-bottom: 3rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  transition: all var(--transition-normal);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(10px);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-link {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-decoration: none;
  font-size: 1.5rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.social-link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: scale(0);
  transition: transform var(--transition-normal);
}

.social-link:hover::before {
  transform: scale(1);
}

.social-link:hover {
  transform: translateY(-5px);
  color: var(--primary-color);
}

.social-link i {
  position: relative;
  z-index: 2;
}

/* Message Area */
#messageArea {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 10px;
  text-align: center;
  font-weight: 500;
}

.success-message {
  background: rgba(76, 175, 80, 0.2);
  color: #4caf50;
  border: 1px solid rgba(76, 175, 80, 0.3);
}

.error-message {
  background: rgba(244, 67, 54, 0.2);
  color: #f44336;
  border: 1px solid rgba(244, 67, 54, 0.3);
}

/* Footer */
.footer {
  background: var(--secondary-color);
  color: #fff;
  padding: 2rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-normal);
}

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

/* Utility Classes */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px 0;
  }

  .hero-content {
    gap: 3rem;
  }

  .about-content {
    gap: 3rem;
  }

  .contact-content {
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
    --container-padding: 0 1.5rem;
  }

  .mobile-menu {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-link {
    color: var(--text-primary);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .hero-avatar {
    width: 300px;
    height: 300px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    justify-content: center;
  }

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

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

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

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

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

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

  .hero-avatar {
    width: 250px;
    height: 250px;
  }

  .skill-card,
  .course-card,
  .contact-form,
  .contact-info-card {
    padding: 2rem 1.5rem;
  }
}

/* Loading States */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

.loading .btn {
  cursor: not-allowed;
}

/* Scroll Animations */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}