/* Base Styles */
:root {
  --primary: #06b6d4; /* cyan-500 */
  --primary-dark: #0891b2; /* cyan-600 */
  --secondary: #3b82f6; /* blue-500 */
  --dark: #111827; /* gray-900 */
  --darker: #0f172a; /* gray-950 */
  --light: #f3f4f6; /* gray-100 */
  --gray: #6b7280; /* gray-500 */
  --gray-light: #9ca3af; /* gray-400 */
  --gray-dark: #374151; /* gray-700 */
  --success: #10b981; /* emerald-500 */
  --error: #ef4444; /* red-500 */
  --max-width: 1280px;
  --header-height: 4rem;
  --transition: all 0.3s ease-in-out;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-2xl: 0 30px 60px -15px rgba(0, 0, 0, 0.3);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  --shadow-outline: 0 0 0 3px rgba(6, 182, 212, 0.5);
  --shadow-none: none;
}

/* Typography */
html {
  scroll-behavior: smooth;
  font-size: 16px;
  line-height: 1.6;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--light);
  background-color: var(--darker);
  overflow-x: hidden;
}

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

h1 {
  font-size: 3.5rem;
  line-height: 1.1;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

h3 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--gray-light);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--secondary);
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 0.5rem;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: rgba(6, 182, 212, 0.1);
  transform: translateY(-2px);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: rgba(15, 23, 42, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 5rem;
  padding: 0 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--gray-light);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition);
}

.nav-link:hover {
  color: white;
}

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

.nav-link.active {
  color: white;
}

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 5rem;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  background: linear-gradient(90deg, #fff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--gray-light);
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

/* About Section */
.about {
  position: relative;
  background-color: var(--darker);
}

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

.about-image {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.about-image:hover img {
  transform: scale(1.03);
}

.about-text h2 {
  margin-bottom: 1.5rem;
}

.about-text p {
  margin-bottom: 1.5rem;
  color: var(--gray-light);
  line-height: 1.8;
}

.skills {
  margin-top: 2rem;
}

.skills h3 {
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1rem;
}

.skill-item {
  background-color: rgba(255, 255, 255, 0.05);
  padding: 1rem;
  border-radius: 0.5rem;
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-item:hover {
  transform: translateY(-5px);
  background-color: rgba(6, 182, 212, 0.1);
  border-color: var(--primary);
}

.skill-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.skill-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: white;
}

/* Projects Section */
.projects {
  background-color: var(--darker);
  position: relative;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 1rem;
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  border-color: rgba(6, 182, 212, 0.3);
}

.project-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

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

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: var(--transition);
}

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

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-tag {
  background-color: rgba(6, 182, 212, 0.2);
  color: var(--primary);
  font-size: 0.7rem;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-weight: 500;
}

.project-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: white;
}

.project-description {
  color: var(--gray-light);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

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

/* Contact Section */
.contact {
  position: relative;
  background-color: var(--darker);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

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

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: rgba(6, 182, 212, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-text h3 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
  color: white;
}

.contact-text p,
.contact-text a {
  color: var(--gray-light);
  margin-bottom: 0;
  transition: var(--transition);
}

.contact-text a:hover {
  color: var(--primary);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-light);
  font-size: 1.25rem;
  transition: var(--transition);
}

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

.contact-form {
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 1rem;
  padding: 2.5rem;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: white;
}

.form-control {
  width: 100%;
  padding: 0.875rem 1.25rem;
  font-size: 1rem;
  line-height: 1.5;
  color: white;
  background-color: rgba(255, 255, 255, 0.05);
  background-clip: padding-box;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(6, 182, 212, 0.25);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* Footer */
.footer {
  background-color: var(--darker);
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: inline-block;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-text {
  color: var(--gray-light);
  margin-bottom: 2rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-link {
  color: var(--gray-light);
  transition: var(--transition);
}

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

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.footer-social-link {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-light);
  font-size: 1.25rem;
  transition: var(--transition);
}

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

.copyright {
  color: var(--gray);
  font-size: 0.875rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 100;
  border: none;
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--secondary);
  transform: translateY(-3px);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(6, 182, 212, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* Custom Cursor */
.cursor-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, opacity 0.2s;
}

.cursor-outline {
  width: 40px;
  height: 40px;
  border: 2px solid var(--primary);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: all 0.1s ease-out;
  mix-blend-mode: difference;
}

/* Preloader */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--darker);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 4px;
  transition: width 0.3s ease;
}

.typing-text {
  position: relative;
  display: inline-block;
}

.typing-cursor {
  display: inline-block;
  margin-left: 2px;
  animation: blink 0.7s infinite;
}

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

/* Particles */
#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 1;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .about-content,
  .contact-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .about-image {
    max-width: 500px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .section {
    padding: 4rem 0;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }
  
  .contact-form {
    padding: 1.5rem;
  }
}