/* 共通スタイル - common.css */

/* リセット */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Helvetica Neue", sans-serif;
  color: #333;
  background-color: #fff;
  line-height: 1.6;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style: none;
}

/* ヘッダー */
.site-header {
  background: #fff;
  border-bottom: 1px solid #ddd;
  padding: 10px 20px;
  position: fixed;
  width: 100%;
  z-index: 100;
  top: 0;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}
.logo a {
  font-weight: bold;
  font-size: 1.2rem;
  color: #222;
}
.main-nav ul {
  display: flex;
  gap: 20px;
}
.main-nav a {
  font-size: 0.9rem;
}
.btn-cta-header {
  background: #005bac;
  color: #fff;
  padding: 0.5em 1em;
  border-radius: 5px;
  font-weight: bold;
}

/* フッター */
.site-footer {
  background: #222;
  color: #fff;
  text-align: center;
  padding: 20px 0;
}

.footer-nav-columns {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto 2em;
  padding: 0 1em;
}
.footer-col {
  flex: 1 1 30%;
  margin-bottom: 1.5em;
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.5em;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li {
  margin-bottom: 0.5em;
}
.footer-col a {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
}
.footer-col a:hover {
  text-decoration: underline;
}