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

:root {
  --primary-color: #00d4ff;
  --secondary-color: #ff6b6b;
  --accent-color: #4ecdc4;
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #666666;
  --gradient-primary: linear-gradient(135deg, #00d4ff, #4ecdc4);
  --gradient-secondary: linear-gradient(135deg, #ff6b6b, #ffa726);
  --shadow-light: 0 4px 6px rgba(0, 212, 255, 0.1);
  --shadow-medium: 0 8px 25px rgba(0, 212, 255, 0.15);
  --shadow-heavy: 0 15px 35px rgba(0, 212, 255, 0.2);
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

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

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

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

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

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

.btn-secondary:hover {
  background: var(--primary-color);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
}

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

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

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

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

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

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

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  margin: 3px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 4rem;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  height: 400px;
}

.floating-icons {
  position: relative;
  width: 100%;
  height: 100%;
}

.floating-icons i {
  position: absolute;
  font-size: 3rem;
  color: var(--primary-color);
  animation: float 6s ease-in-out infinite;
}

.floating-icons i:nth-child(1) {
  top: 10%;
  left: 20%;
  animation-delay: 0s;
}

.floating-icons i:nth-child(2) {
  top: 20%;
  right: 10%;
  animation-delay: 1s;
}

.floating-icons i:nth-child(3) {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  animation-delay: 2s;
}

.floating-icons i:nth-child(4) {
  bottom: 30%;
  left: 10%;
  animation-delay: 3s;
}

.floating-icons i:nth-child(5) {
  bottom: 10%;
  right: 20%;
  animation-delay: 4s;
}

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

/* About Section */
.about {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: center;
}

.about-image {
  position: relative;
}

.image-placeholder {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 3px dashed var(--primary-color);
  transition: var(--transition);
}

.image-placeholder:hover {
  border-color: var(--accent-color);
  transform: scale(1.05);
}

.image-placeholder i {
  font-size: 4rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.image-placeholder p {
  color: var(--text-secondary);
  text-align: center;
  font-size: 0.9rem;
}

.about-text p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.stat {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.stat:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Projects Section */
.projects {
  padding: 6rem 0;
}

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

.project-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: var(--transition);
  border: 1px solid rgba(0, 212, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary-color);
}

.project-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.project-icon i {
  font-size: 1.5rem;
  color: var(--bg-primary);
}

.project-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.project-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tech-tag {
  background: var(--bg-tertiary);
  color: var(--primary-color);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.project-link:hover {
  background: var(--primary-color);
  color: var(--bg-primary);
  transform: scale(1.1);
}

/* Skills Section */
.skills {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

.skills-categories {
  display: grid;
  gap: 3rem;
}

.skill-category h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--primary-color);
  text-align: center;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.skill-item {
  background: var(--bg-tertiary);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

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

.skill-item i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.skill-item span {
  display: block;
  font-weight: 600;
  margin-bottom: 1rem;
}

.skill-level {
  background: var(--bg-primary);
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
}

.skill-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 4px;
  width: 0;
  transition: width 2s ease-in-out;
}

/* Certifications Section */
.certifications {
  padding: 6rem 0;
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.cert-card {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(0, 212, 255, 0.1);
  position: relative;
}

.cert-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary-color);
}

.cert-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;
}

.cert-icon i {
  font-size: 2rem;
  color: var(--bg-primary);
}

.cert-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.cert-card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.cert-badge {
  background: var(--gradient-secondary);
  color: var(--bg-primary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Blog Section */
.blog {
  padding: 6rem 0;
  background: var(--bg-secondary);
}

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

.blog-card {
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid rgba(0, 212, 255, 0.1);
}

.blog-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary-color);
}

.blog-image {
  height: 200px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-image i {
  font-size: 3rem;
  color: var(--bg-primary);
}

.blog-content {
  padding: 2rem;
}

.blog-content h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.blog-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Contact Section */
.contact {
  padding: 6rem 0;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

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

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

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  padding: 0.75rem;
  border-radius: var(--border-radius);
}

.contact-link:hover {
  color: var(--primary-color);
  background: var(--bg-secondary);
}

.contact-link i {
  width: 20px;
  text-align: center;
}

.contact-form {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: var(--border-radius);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem;
  background: var(--bg-tertiary);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  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);
}

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

/* Footer */
.footer {
  background: var(--bg-secondary);
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.footer p {
  color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    right: 0;
    background: var(--bg-secondary);
    width: 100%;
    z-index: 1001;
    padding: 1rem 0;
    gap: 1.5rem;
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.15);
    border-bottom-left-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
  }
  .hamburger {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .hero {
    padding: 6rem 1rem 4rem;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .projects-grid,
  .skills-grid,
  .certifications-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .project-card,
  .cert-card,
  .blog-card {
    margin: 0 0.5rem;
  }
}