/* contact css */
:root {
  --bg-color: #000000;
  --text-color: #eee;
  --accent-color: #4A90E2;
  /* 教育らしい誠実な青 */
  --card-bg: #ffffff;
  --error-color: #E74C3C;
  /* 注意を引く赤色 */
}

.contact-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 20px;
}

h1 {
  text-align: center;
  color: var(--text-main);
  margin-bottom: 30px;
}

.contact-intro {
  text-align: center;
  margin-bottom: 40px;
}

.form-card {
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  font-weight: bold;
  margin-bottom: 8px;
  font-size: 1.6rem;
}

.required-tag {
  color: white;
  font-size: 1.2rem;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 8px;
  vertical-align: middle;
}

textarea {
  resize: vertical;
  min-height: 150px;
}

.privacy-check {
  font-size: 1.2rem;
  text-align: center;
  margin-bottom: 30px;
}



.submit-btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

option {
  background: var(--card-bg);
}

.footer-link {
  text-align: center;
  margin-top: 40px;
}

.footer-link a {
  color: var(--text-color);
  text-decoration: underline;
}



.contact-container {
  max-width: 600px;
  margin: 30px auto;
  background: var(--pastel-blue);
  border-radius: 10px;
}



.contact-intro {
  text-align: center;
  margin-bottom: 30px;
  font-size: 1.35rem;
}

.form-card {
  background: var(--bg-card);
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-weight: bold;
  margin-bottom: 8px;
  font-size: 1.3rem;
}

.required-tag {
  background: var(--required-color);
  color: #cc0000;
  font-size: 1.2rem;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 8px;
  vertical-align: middle;
}

input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 10px;
  box-sizing: border-box;
  font-size: 1.5rem;
  background: transparent;
  color: inherit;
}

select option {
  background-color: var(--bg-sub);
  color: var(--text-sub);
}

/* 選択された状態（一部のブラウザのみ有効） */
select option:checked {
  background-color: #ff0000 !important;
  /* 赤色にする例 */
  color: #ffffff !important;
}

textarea {
  height: 150px;
  resize: vertical;
}

.submit-btn {
  display: block;
  width: 100%;
  padding: 15px;
  background: var(--accent-color);
  border: none;
  border-radius: 30px;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.2s;
}

.submit-btn:hover {
  transform: scale(1.02);
}

.error-box {
  background: #fff2f2;
  border: 1px solid #ffcccc;
  color: #cc0000;
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 20px;
  text-align: center;
}

.thanks-card {
  text-align: center;
  padding: 40px 20px;
}

.icon {
  font-size: 4rem;
  display: block;
  margin-bottom: 20px;
}