:root {
  --primary-color: #6c63ff;
  --secondary-color: #667eea;
  --dark-color: #2d3748;
  --light-color: #f7fafc;
  --gray-color: #a0aec0;
  --success-color: #48bb78;
  --portfolio-bg: #1a73e8;
  --white: #ffffff;
  --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 10px 30px rgba(0, 0, 0, 0.2);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 12px;
}

@font-face {
  font-family: "Montserrat";
  font-display: swap;
  src: url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700");
}

@font-face {
  font-family: "Open Sans";
  font-display: swap;
  src: url("https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600");
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    "Open Sans",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--white);
  font-display: swap;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

h1,
h2,
h3,
h4 {
  font-family:
    "Montserrat",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  font-weight: 700;
  line-height: 1.2;
  font-display: swap;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 20px;
}

.section-divider {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  margin: 0 auto;
  border-radius: 2px;
}

.section-divider.light {
  background: linear-gradient(90deg, var(--white), rgba(255, 255, 255, 0.8));
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  min-width: 140px;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

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

.btn-full {
  width: 100%;
}

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

.navbar .container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding: 20px;
  min-height: 80px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark-color);
  font-family: "Montserrat", sans-serif;
}

.nav-links {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}

.nav-links a {
  color: var(--dark-color);
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--primary-color);
  background: rgba(108, 99, 255, 0.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--dark-color);
  transition: var(--transition);
  border-radius: 2px;
}

.hero {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  color: var(--white);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: 20px;
  animation: fadeInUp 1s ease-out;
}

.hero h2 {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 400;
  margin-bottom: 20px;
  opacity: 0.9;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero h3 {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 400;
  margin-bottom: 40px;
  opacity: 0.9;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.code-icon {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 40px 0;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
  animation: fadeInUp 1s ease-out 0.8s both;
}

.about-section {
  padding: 120px 0;
  background: var(--light-color);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.text-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.text-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--dark-color);
}

.skills-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin: 40px 0;
}

.skills-column h4 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.skills-list {
  list-style: none;
}

.skills-list li {
  margin-bottom: 12px;
  position: relative;
  padding-left: 25px;
  font-weight: 500;
  transition: var(--transition);
}

.skills-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

.skills-list li:hover {
  color: var(--primary-color);
  transform: translateX(5px);
}

.about-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-container {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-heavy);
  transition: var(--transition);
}

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

.image-container img {
  width: 100%;
  height: auto;
  display: block;
}

.portfolio-section {
  padding: 120px 0;
  background: var(--portfolio-bg);
  color: var(--white);
}

.portfolio-section .section-header h2 {
  color: var(--white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
}

.portfolio-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.portfolio-item:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-heavy);
}

.portfolio-image {
  height: 200px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.portfolio-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  color: var(--white);
  transform: scale(1.2);
}

.portfolio-content {
  padding: 30px;
}

.portfolio-content h3 {
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.portfolio-content p {
  margin-bottom: 25px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--white);
  transition: var(--transition);
  padding: 10px 0;
}

.portfolio-link:hover {
  transform: translateX(5px);
}

.portfolio-link i {
  transition: var(--transition);
}

.portfolio-link:hover i {
  transform: translateX(5px);
}

.contact-section {
  padding: 120px 0;
  background: var(--light-color);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-text p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 40px;
}

.contact-details {
  margin: 40px 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
  padding: 15px;
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  transition: var(--transition);
}

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

.contact-item i {
  color: var(--primary-color);
  font-size: 1.2rem;
  width: 20px;
}

.social-links {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}

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

.social-links a:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.contact-form {
  background: var(--white);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
}

.form-group {
  margin-bottom: 25px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid #e2e8f0;
  border-radius: var(--border-radius);
  font-family: "Open Sans", sans-serif;
  font-size: 16px;
  transition: var(--transition);
  background: #fafafa;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

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

.footer {
  background: var(--dark-color);
  color: var(--white);
  padding: 40px 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 30px;
}

.footer-links a {
  color: var(--gray-color);
  transition: var(--transition);
}

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

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

@media (max-width: 1024px) {
  .container {
    padding: 0 30px;
  }

  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .skills-container {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 50px;
    transition: var(--transition);
  }

  .nav-links.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

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

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

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

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

  .hero-cta .btn {
    width: 200px;
  }

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

  .about-content,
  .contact-content {
    text-align: center;
  }

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .about-section,
  .portfolio-section,
  .contact-section {
    padding: 80px 0;
  }

  .contact-form {
    padding: 30px 20px;
  }

  .social-links {
    justify-content: center;
  }
}

.portfolio-item,
.contact-item,
.image-container {
  will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}