@charset "UTF-8";
/* ===========================
   Reset CSS
   =========================== */

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

/* タイポグラフィ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: 2em;
}

h2 {
  font-size: 1.75em;
}

h3 {
  font-size: 1.5em;
}

h4 {
  font-size: 1.25em;
}

h5 {
  font-size: 1.1em;
}

h6 {
  font-size: 1em;
}

p {
  margin-bottom: 1em;
}

/* リスト */
ul, ol {
  list-style: none;
}

/* リンク */
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  opacity: 0.8;
}

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

/* フォーム */
input,
textarea,
select,
button {
  font: inherit;
  color: inherit;
  background-color: transparent;
  border: none;
  appearance: none;
}

input,
textarea,
select {
  border: 1px solid #ccc;
  padding: 0.5em;
  border-radius: 4px;
}

textarea {
  resize: vertical;
}

button {
  cursor: pointer;
  padding: 0.5em 1em;
  border-radius: 4px;
  transition: all 0.3s ease;
}

/* テーブル */
table {
  border-collapse: collapse;
  width: 100%;
}

th, td {
  padding: 0.75em;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

th {
  background-color: #f5f5f5;
  font-weight: 600;
}

/* その他 */
hr {
  border: none;
  border-top: 1px solid #ddd;
  margin: 1em 0;
}

code, pre {
  font-family: 'Courier New', Courier, monospace;
  background-color: #f5f5f5;
  border-radius: 4px;
}

code {
  padding: 0.2em 0.4em;
}

pre {
  padding: 1em;
  overflow-x: auto;
}

blockquote {
  margin: 1em 0;
  padding-left: 1em;
  border-left: 4px solid #ddd;
  color: #666;
}