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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Yu Gothic', 'YuGothic', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fefefe;
  font-weight: 300;
  letter-spacing: 0.02em;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

h1 {
  font-size: 2.5rem;
  font-weight: 200;
}

h2 {
  font-size: 2rem;
  font-weight: 200;
}

h3 {
  font-size: 1.5rem;
  font-weight: 300;
}

p {
  margin-bottom: 16px;
  font-weight: 300;
  letter-spacing: 0.02em;
}

a {
  color: #333;
  text-decoration: none;
  transition: color 0.3s ease;
  
  &:hover {
    color: #666;
  }
}

ul, ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

li {
  margin-bottom: 8px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

figure {
  margin: 0;
}

/* Common spacing */
section {
  padding: 80px 0;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  section {
    padding: 48px 0;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
}