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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  transition: background-color 0.3s, color 0.3s;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.light-mode {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  color: #2d3748;
}

body.dark-mode {
  background: linear-gradient(135deg, #0a0e27 0%, #0f1729 100%);
  color: #e2e8f0;
}

.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: all 0.3s;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

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

.hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 0;
}

.hero-content {
  animation: fadeIn 1s ease-in;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-content h2 {
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.hero-content p {
  font-size: 1.2rem;
  opacity: 0.85;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: inherit;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s;
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.github-link:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.github-logo {
  width: 24px;
  height: 24px;
  background-color: currentColor;
  -webkit-mask: url(assets/github-mark.svg) no-repeat center / contain;
  mask: url(assets/github-mark.svg) no-repeat center / contain;
  display: inline-block;
}

.email-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
  transition: opacity 0.3s;
}

.email-link:hover {
  opacity: 0.7;
}

footer {
  background: rgba(0, 0, 0, 0.1);
  padding: 2rem 0;
  text-align: center;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

footer p {
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

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

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }

  .hero-content h2 {
    font-size: 1.5rem;
  }

  .hero-content p {
    font-size: 1rem;
    flex-direction: column;
  }
}