html {
  overflow-x: hidden;
}
/* カスタムスタイル */
body {
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.7;
  color: #333;
}

/* ヒーローセクション */
.hero-section {
	padding-top: 150px;
	position: relative;
	z-index: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

/*
background:
  url("images/bg_header.jpg") no-repeat center top /cover,
  linear-gradient(135deg, #667eea, #764ba2);
*/

  color: white;
  position: relative;
}
.fv_contents {
	height: calc(100vh - 100px);
}
.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: url("images/bg_header.jpg") no-repeat center top /cover;
  z-index: -1;

/*
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
*/
}
.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
	padding: 1.5em 0;
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.8;
}

.hero-subtitle {
  font-size: 2rem;
  font-weight: 700;
  color: #ffd700;
}

.hero-description {
  font-size: 1.3rem;
  font-weight: 500;
}
.ttl_sponsored {
	width: 60%;
	margin: 1em auto 3em;
	padding: 1em 0;
	background-color: #fff;
	border-radius: 100px;
	color: #333;
	text-align: center;
}
@media (max-width: 768px) {
}
@media (max-width: 576px) {
.ttl_sponsored {
	width: 80%;
	margin: 1em auto 3em;
	padding: 1em 0;
	background-color: #fff;
	border-radius: 100px;
	color: #333;
	text-align: center;
}

}


.highlight {
  background: linear-gradient(45deg, #ff6b6b, #feca57);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

/* セクションタイトル */
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #2c3e50;
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(45deg, #667eea, #764ba2);
  border-radius: 2px;
}

/* カード */
.card {
  border: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* ボタン */
.btn-primary {
  background: linear-gradient(45deg, #667eea, #764ba2);
  border: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: linear-gradient(45deg, #5a6fd8, #6a4190);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-danger {
  background: linear-gradient(45deg, #ff6b6b, #ee5a52);
  border: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-danger:hover {
  background: linear-gradient(45deg, #ff5252, #e53e3e);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

/* ワークショップ情報 */
.workshop-info {
  border-left: 5px solid #667eea;
	color: #333;

}

/* アコーディオン */
.accordion-button {
  font-weight: 600;
  font-size: 1.1rem;
}

.accordion-button:not(.collapsed) {
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: white;
}

/* 講師の写真 */
.instructor-photo {
  width: 250px;
  height: 250px;
  object-fit: cover;
  border: 4px solid #fff;
}

/* 画像のスタイル */
.shadow-lg {
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;
}

/* レスポンシブ調整 */
@media (max-width: 768px) {
  .hero-title {
    font-size: 1.8rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
  }

  .hero-description {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .instructor-photo {
    width: 200px;
    height: 200px;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 1.5rem;
  }

  .hero-subtitle {
    font-size: 1.3rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }

  .instructor-photo {
    width: 150px;
    height: 150px;
  }
}

/* アニメーション */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  animation: fadeInUp 0.6s ease-out;
}

/* スクロール時のスムーズな動作 */
html {
  scroll-behavior: smooth;
}

/* フォーカス時のアクセシビリティ */
.btn:focus,
.accordion-button:focus {
  box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

/* 強調表示 */
.text-success.fw-bold {
  background-color: rgba(25, 135, 84, 0.1);
  padding: 2px 4px;
  border-radius: 4px;
}

/* 問題提起セクションのスタイル */
.failure-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 0;
  height: 100%;
  transition: all 0.3s ease;
  border: 1px solid #e8ecef;
}

.failure-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.failure-header {
  background: linear-gradient(135deg, #dc3545, #c82333);
  color: white;
  padding: 1.5rem;
  border-radius: 12px 12px 0 0;
  text-align: center;
}

.failure-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.failure-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.3;
}

.failure-body {
  padding: 1.5rem;
}

.failure-content {
  color: #495057;
  line-height: 1.6;
  margin: 0;
  font-size: 0.95rem;
}

/* 根本原因セクション */
.root-cause-section {
  display: flex;
  justify-content: center;
}

.root-cause-card {
  background: linear-gradient(135deg, #fff5f5, #fff);
  border: 2px solid #dc3545;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  max-width: 600px;
  box-shadow: 0 4px 20px rgba(220, 53, 69, 0.1);
}

.root-cause-title {
  color: #dc3545;
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.root-cause-content {
  color: #495057;
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .failure-card {
    margin-bottom: 1.5rem;
  }

  .failure-title {
    font-size: 1rem;
  }

  .failure-content {
    font-size: 0.9rem;
  }

  .root-cause-card {
    padding: 1.5rem;
    margin: 0 1rem;
  }

  .root-cause-title {
    font-size: 1.1rem;
  }

  .root-cause-content {
    font-size: 1rem;
  }
}

@media (max-width: 576px) {
  .failure-header {
    padding: 1.2rem;
  }

  .failure-body {
    padding: 1.2rem;
  }

  .failure-icon {
    font-size: 2rem;
  }
}

/* FAQ セクションのスタイル */
.accordion-item {
  border: 1px solid rgba(0, 0, 0, 0.1);
  margin-bottom: 0.5rem;
  border-radius: 0.5rem;
  overflow: hidden;
}

.accordion-button {
  background-color: #f8f9fa;
  font-weight: 600;
  padding: 1rem 1.25rem;
}

.accordion-button:not(.collapsed) {
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: white;
}

.accordion-button:focus {
  box-shadow: none;
  border-color: rgba(0, 0, 0, 0.125);
}

.accordion-body {
  padding: 1.25rem;
  background-color: #fff;
}

.accordion-button::after {
  background-size: 1.25rem;
  transition: all 0.3s ease;
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0) invert(1);
}

/* FAQ カテゴリータイトル */
.h4.text-primary {
  position: relative;
  padding-bottom: 0.5rem;
  margin-top: 2rem;
}

.h4.text-primary::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(45deg, #667eea, #764ba2);
  border-radius: 2px;
}



  .calendar-container {
    max-width: 800px;
    margin: 0 auto 30px;
  }
  
  .calendar-header {
    text-align: center;
    margin-bottom: 20px;
  }
  
  .calendar {
    display: flex;
    flex-direction: column;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
  }
  
  .weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background-color: #f2f2f2;
    font-weight: bold;
    text-align: center;
  }
  
  .weekdays div {
    padding: 10px;
    border-right: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
  }
  
  .weekdays div:last-child {
    border-right: none;
  }
  
  .weekdays .weekend {
    color: #e53935;
  }
  
  .days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
  }
  
  .day {
    height: 80px;
    padding: 10px;
    border-right: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
    text-align: right;
    font-weight: bold;
    position: relative;
  }
  
  .day:nth-child(7n) {
    border-right: none;
  }
  
  .day.empty {
    background-color: #f9f9f9;
  }
  
  .day.weekend {
    color: #e53935;
  }
  
  .day.workshop {
    background-color: #e8f0fe;
    color: #1a73e8;
    cursor: pointer;
  }
  
  .day.workshop:hover {
    background-color: #d2e3fc;
  }
  
  .day.workshop.weekend {
    background-color: #e8f0fe;
    color: #e53935;
  }
  
  .day.workshop.special {
    background-color: #e6f4ea;
    color: #137333;
  }
  
  .day.workshop.special.weekend {
    background-color: #e6f4ea;
    color: #e53935;
  }
  
  .day.workshop.special:hover {
    background-color: #ceead6;
  }
  
  .dayinfo {
    position: absolute;
    bottom: 10px;
    left: 10px;
    font-size: 12px;
    font-weight: normal;
    color: #333;
  }
  
  .calendar-legend {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    gap: 30px;
  }
  
  .legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  .legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
  }
  
  .weekend-color {
    background-color: #ffebee;
    border: 1px solid #e53935;
  }
  
  .workshop-color {
    background-color: #e8f0fe;
    border: 1px solid #1a73e8;
  }
  
  .special-color {
    background-color: #e6f4ea;
    border: 1px solid #137333;
  }
  
  .calendar-note {
    text-align: center;
    margin: 20px 0;
    font-size: 16px;
  }
  
  .apply-section {
    text-align: center;
    margin-top: 30px;
  }
  
  .apply-button-large {
    padding: 15px 40px;
    font-size: 18px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
  }
  
  .apply-button-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
  }
  
  .apply-note {
    margin-top: 10px;
    font-size: 14px;
    color: #666;
  }

#header {
	height: 80px;
    background: rgba(0, 114, 159, 1);
}
#header_logo a.animate {
    -webkit-animation: opacityAnimation 1.0s ease forwards 0s;
    animation: opacityAnimation 1.0s ease forwards 0s;
}
#header_logo img {
    max-width: 400px;
    height: auto;
}
#footer_logo .logo_text {
    font-size: 32px;
	color: #000;
}
h3 { font-size: 1.75rem;}
h4 { font-size: 1.5rem;}
h5 { font-size: 1.25rem; }
.small, small {
    font-size: .875em;
}