:root {
  --primary-color: #00d4ff;
  --secondary-color: #0f3460;
  --accent-color: #533483;
  --text-color: #1a1a1a;
  --light-bg: #f5f5f5;
  --dark-bg: #0a0e27;
  --border-color: #e0e0e0;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-color);
  background-color: #fff;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--secondary-color);
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

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

.nav-link:after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  transition: var(--transition);
}

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  border-radius: 3px;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  margin-top: 80px;
  padding: 60px 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
}

.stars {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(2px 2px at 20px 30px, #eee, rgba(0,0,0,0)), 
                    radial-gradient(2px 2px at 60px 70px, #fff, rgba(0,0,0,0)), 
                    radial-gradient(1px 1px at 50px 50px, #ddd, rgba(0,0,0,0));
  background-size: 200px 200px;
  opacity: 0.1;
}

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

.hero-content {
  padding-right: 2rem;
}

.hero-content h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: slideInUp 0.8s ease;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
  animation: slideInUp 0.8s ease 0.2s both;
}

.hero-description {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 2rem;
  line-height: 1.8;
  animation: slideInUp 0.8s ease 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  animation: slideInUp 0.8s ease 0.6s both;
}

.btn {
  padding: 12px 30px;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  color: white;
  box-shadow: var(--shadow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 212, 255, 0.3);
}

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

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

.social-links {
  display: flex;
  gap: 1rem;
  animation: slideInUp 0.8s ease 0.8s both;
}

.social-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  transition: var(--transition);
  box-shadow: var(--shadow);
  font-size: 1.2rem;
}

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

.profile-image {
  position: relative;
  display: flex;
  justify-content: center;
  animation: fadeIn 0.8s ease 0.4s both;
}

.profile-image img {
  max-width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

/* About Section */
.about {
  padding: 80px 0;
  background: white;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 3rem;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

.section-title:after {
  content: '';
  display: block;
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  margin: 1rem auto 0;
  border-radius: 2px;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  color: #555;
  line-height: 1.8;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stat {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(83, 52, 131, 0.1));
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  border-left: 4px solid var(--primary-color);
  transition: var(--transition);
}

.stat:hover {
  transform: translateX(10px);
}

.stat h3 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.stat p {
  color: #666;
  font-weight: 500;
}

/* Skills Section */
.skills {
  padding: 80px 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.skill-category {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.skill-category:hover {
  transform: translateY(-10px);
}

.skill-category h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
}

.skill-item {
  margin-bottom: 1.5rem;
}

.skill-item span {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-color);
}

.skill-bar {
  height: 8px;
  background: #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 10px;
  transition: width 1s ease;
  animation: fillBar 1s ease forwards;
}

@keyframes fillBar {
  from {
    width: 0 !important;
  }
}

/* Experience Section */
.experience {
  padding: 80px 0;
  background: white;
}

.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline:before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.timeline-item {
  margin-bottom: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.timeline-item:nth-child(even) {
  direction: rtl;
}

.timeline-item:nth-child(even) .timeline-content {
  direction: ltr;
}

.timeline-marker {
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border: 4px solid white;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: var(--shadow);
}

.timeline-content {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateY(-5px);
}

.timeline-content h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.timeline-date {
  color: #888;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.timeline-content p {
  color: #666;
  line-height: 1.6;
}

/* Portfolio Section */
.portfolio {
  padding: 80px 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.portfolio-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

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

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

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.8), rgba(83, 52, 131, 0.8));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-overlay h3 {
  color: white;
  font-size: 1.5rem;
}

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

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

.portfolio-info {
  padding: 2rem;
}

.portfolio-info h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.portfolio-info p {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background: rgba(0, 212, 255, 0.1);
  color: var(--primary-color);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Awards Section */
.awards {
  padding: 80px 0;
  background: white;
}

.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.award-card {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(83, 52, 131, 0.1));
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  transition: var(--transition);
  border: 2px solid transparent;
}

.award-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-10px);
}

.award-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.award-card h3 {
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.award-card p {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.award-year {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 0.3rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Contact Section */
.contact {
  padding: 80px 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.section-subtitle {
  text-align: center;
  color: #666;
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1.5rem;
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.contact-item:hover {
  transform: translateX(10px);
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  width: 50px;
}

.contact-item h4 {
  color: var(--secondary-color);
  margin-bottom: 0.3rem;
}

.contact-item p {
  color: #666;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group input,
.form-group textarea {
  padding: 12px 15px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

/* Footer */
.footer {
  background: var(--dark-bg);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

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

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #aaa;
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  color: #888;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
  }

  .hero .container {
    grid-template-columns: 1fr;
    padding-top: 2rem;
  }

  .hero-content {
    padding-right: 0;
    padding-left: 1rem;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .profile-image {
    order: -1;
  }

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

  .timeline:before {
    left: 20px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    margin-left: 50px;
  }

  .timeline-item:nth-child(even) {
    direction: ltr;
  }

  .timeline-marker {
    left: 0;
  }

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

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

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .nav-menu {
    flex-direction: column;
    gap: 1rem;
  }

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