:root {
  --primary: #4fd1c5;
  --secondary: #2d3748;
  --text: #f7fafc;
  --card-bg: #2d3748;
  --bg: #1a202c;
  --highlight: #805ad5;
  --light-bg: #2d3748;
  --border-radius: 10px;
  --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

[data-theme='light'] {
  --primary: #3182ce;
  --secondary: #edf2f7;
  --text: #2d3748;
  --card-bg: #ffffff;
  --bg: #f7fafc;
  --highlight: #6b46c1;
  --light-bg: #edf2f7;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--secondary), var(--bg));
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="400" height="400" viewBox="0 0 800 800"><g fill="none" stroke="rgba(128, 90, 213, 0.1)" stroke-width="1"><path d="M769 229L1037 260.9M927 880L731 737 520 660 309 538 40 599 295 764 126.5 879.5 40 599-197 493 102 382-31 229 126.5 79.5-69-63"/><path d="M-31 229L237 261 390 382 603 493 308.5 537.5 101.5 381.5M370 905L295 764"/><path d="M520 660L578 842 731 737 840 599 603 493 520 660 295 764 309 538 390 382 539 269 769 229 577.5 41.5 370 105 295 -36 126.5 79.5 237 261 102 382 40 599 -69 737 127 880"/><path d="M520-140L578.5 42.5 731-63M603 493L539 269 237 261 370 105M902 382L539 269M390 382L102 382"/><path d="M-222 42L126.5 79.5 370 105 539 269 577.5 41.5 927 80 769 229 902 382 603 493 731 737M295-36L577.5 41.5M578 842L295 764M40-201L127 80M102 382L-31 229"/></g></svg>')
    center/cover no-repeat;
  opacity: 0.5;
}

.hero-content {
  text-align: center;
  z-index: 10;
  padding: 0 20px;
}

.profile-pic {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 4px solid var(--primary);
  margin-bottom: 2rem;
  background-color: var(--light-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--primary);
  box-shadow: var(--box-shadow);
}

.profile-info {
  margin-top: 4rem;
  margin-bottom: 2rem;
}

.name {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--primary), var(--highlight));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.title {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.title::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-item svg {
  fill: var(--primary);
  width: 20px;
  height: 20px;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  margin-bottom: rem;
}

.social-btn {
  width: 45px;
  height: 45px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  background-color: var(--card-bg);
  color: var(--primary);
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--box-shadow);
}

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

.social-btn svg {
  width: 20px;
  height: 20px;
}

.scroll-down {
  bottom: 30px;
  margin-top: 1rem;
  margin-bottom: 1rem;
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
}

.scroll-down svg {
  width: 24px;
  height: 24px;
  animation: bounce 2s infinite;
}

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

/* Navbar */
.navbar {
  background: rgba(45, 55, 72, 0.95);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.navbar.scrolled {
  padding: 0.5rem 0;
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: color 0.3s;
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s;
}

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

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Main content */
main {
  padding: 2rem 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
}

.card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--box-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Experience */
.job {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.job:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.job-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.job-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--highlight);
}

.job-company {
  font-weight: 500;
}

.job-date {
  font-size: 0.9rem;
  padding: 0.25rem 0.75rem;
  background-color: rgba(79, 209, 197, 0.2);
  color: var(--primary);
  border-radius: 20px;
  font-weight: 500;
}

.job-description {
  margin-top: 1rem;
}

.job-description ul {
  list-style-type: none;
  padding-left: 1.5rem;
}

.job-description li {
  position: relative;
  margin-bottom: 0.5rem;
}

.job-description li::before {
  content: '▹';
  position: absolute;
  left: -1.5rem;
  color: var(--primary);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
}

.skill-item {
  background-color: rgba(79, 209, 197, 0.1);
  border: 1px solid rgba(79, 209, 197, 0.2);
  border-radius: var(--border-radius);
  padding: 1rem;
  text-align: center;
  transition: all 0.3s ease;
}

.skill-item:hover {
  background-color: rgba(79, 209, 197, 0.2);
  transform: translateY(-5px);
}

.skill-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

/* Languages */
.languages-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.language-item {
  background-color: var(--light-bg);
  border-radius: var(--border-radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 200px;
  flex: 1;
}

.language-name {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.language-level {
  width: 100%;
  height: 8px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.language-progress {
  height: 100%;
  background-color: var(--primary);
  border-radius: 4px;
}

.high-proficiency {
  width: 95%;
}

.good-proficiency {
  width: 75%;
}

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

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

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

.footer-link {
  color: var(--text);
  text-decoration: none;
  transition: color 0.3s;
}

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

.copyright {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

/* Theme toggle */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--primary);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  border: none;
  box-shadow: var(--box-shadow);
  z-index: 100;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  transform: scale(1.1);
}

.theme-toggle svg {
  width: 24px;
  height: 24px;
}

/* Responsive */
@media (max-width: 768px) {
  .name {
    font-size: 2.5rem;
  }

  .title {
    font-size: 1.25rem;
  }

  .navbar-container {
    flex-direction: column;
    gap: 1rem;
  }

  .mobile-menu-btn {
    display: block;
    position: absolute;
    top: 1rem;
    right: 1rem;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    text-align: center;
    padding: 1rem 0;
  }

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

  .job-header {
    flex-direction: column;
  }

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

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

.fadeIn {
  animation: fadeIn 1s ease forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

.delay-3 {
  animation-delay: 0.6s;
}