:root {
  --main-blue: #003a8f;   /* ソニーブルー（濃） */
  --sub-blue:  #0050b3;   /* 少し明るめ */
  --light-blue:#e6f0ff;   /* 背景用 */
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background-color: var(--light-blue);
  color: #222;
}

header {
  background-color: var(--main-blue);
  color: #ffffff;
  padding: 24px 16px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

h2 {
  color: #005bac;
}

section {
  background: #fff;
  margin: 20px;
  padding: 24px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

h1, h2 {
  margin-top: 0;
}

footer {
  text-align: center;
  padding: 20px;
  color: #777;
  font-size: 0.9em;
}

nav {
  position: sticky;
  top: 0;
  background-color: var(--sub-blue);
  padding: 10px 0;
  z-index: 1000;
}

nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav li {
  margin: 0 16px;
}

nav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

section {
  background-color: #ffffff;
  margin: 24px auto;
  padding: 24px;
  max-width: 900px;
  border-radius: 8px;
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.price-table th {
  background-color: var(--main-blue);
  color: #ffffff;
  padding: 12px;
}

.price-table td {
  border: 1px solid #ccc;
  padding: 12px;
  text-align: center;
}

.note {
  margin-top: 12px;
  font-size: 0.9rem;
  color: #555;
}

.school-photo {
  width: 100%;
  max-width: 800px;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
}


/* スマホ対応 */
@media screen and (max-width: 768px) {

  .price-table th,
  .price-table td {
    font-size: 0.9rem;
    padding: 8px;
  }
  
  header h1 {
    font-size: 1.5rem;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
  }

  nav li {
    margin: 8px 0;
  }

  section {
    margin: 16px;
    padding: 16px;
  }
}

.contact-mail {
  margin-top: 16px;
  text-align: center;
}

.contact-mail a {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--main-blue);
  text-decoration: none;
}

.contact-mail a:hover {
  text-decoration: underline;
}

.contact-tel {
  margin-top: 12px;
  text-align: center;
  font-size: 1.1rem;
}

.contact-tel a {
  color: var(--main-blue);
  font-weight: bold;
  text-decoration: none;
}

.contact-tel a:hover {
  text-decoration: underline;
}

html {
  scroll-behavior: smooth;
}