/* =============================================
   リセット & ベーススタイル
   ============================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.8;
  color: #333;
  overflow-x: hidden;
  background-image: url('img/sample_request/mv-background_pc.png');
  background-repeat: repeat;
  background-size: auto;
  background-position: top left;
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* =============================================
   メインビジュアル
   ============================================= */
.main-visual {
  width: 100%;
  margin: 0;
  padding: 0;
  line-height: 0;
}

.main-visual-image {
  width: 100%;
  height: auto;
  display: block;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.pc-only {
  display: inline;
}

/* PC専用改行 */
.br-pc {
  display: block;
}

/* モバイル専用改行 */
.br-sp {
  display: none;
}

/* =============================================
   セクション共通
   ============================================= */
.section {
  padding: 0 20px 60px;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.section-title {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  text-align: center;
  background-color: #D0141B;
  padding: 10px 150px;
  margin-bottom: 0;
  letter-spacing: 0.05em;
  display: inline-block;
  position: relative;
  left: 50%;
  transform: translateX(-50%) translateY(50%);
  z-index: 10;
  border-radius: 10px;
}

.section-description {
  text-align: center;
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 40px;
  color: #555;
}

/* =============================================
   セクション1: 無料サンプルの内容
   ============================================= */
.sample-info-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.sample-info-text {
  font-size: 1rem;
  line-height: 1.8;
  color: #333;
  background-color: #fff;
  padding: 80px;
  padding-top: 80px;
  border: 2px solid #D0141B;
  border-radius: 8px;
  position: relative;
  margin-top: 0;
}

.sample-info-description {
  max-width: 600px;
  margin: 0 auto 20px;
  text-align: left;
}

.sample-info-images {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.sample-group {
  background-color: #fff;
  padding: 30px;
  border: 2px solid #ddd;
  border-radius: 8px;
}

.sample-group-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #D0141B;
  margin-bottom: 20px;
  text-align: center;
}

.sample-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.sample-item {
  padding: 15px;
  border-radius: 8px;
  overflow: hidden;
}

.sample-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

.sample-info-note, .sample-list-note {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-top: 20px;
  text-align: center;
}

/* ストライプハイライト装飾 */
.stripe-highlight {
  position: relative;
  padding: 0.2em 0.4em;
  padding-bottom: 0.3em;
  font-weight: 700;
  display: inline-block;
}

.stripe-highlight:after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 8px;
  background: repeating-linear-gradient(
    -45deg,
    #D0141B,
    #D0141B 3px,
    #FFE6E8 3px,
    #FFE6E8 6px
  );
}

/* =============================================
   セクション2・4: フォーム
   ============================================= */
.sample-form {
  margin: 0 auto;
  background-color: #fff;
  padding: 80px 30px 40px;
  border: 2px solid #D0141B;
  border-radius: 8px;
  position: relative;
  margin-top: 0;
}

/* フォームのグリッドレイアウト（PC版） */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px 40px;
}

.form-group {
  margin-bottom: 0;
}

/* フルワイドで表示する項目 */
.form-group-full {
  grid-column: 1 / -1;
}

.form-label {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 10px;
}

.required {
  color: #D0141B;
  margin-left: 10px;
  font-weight: 700;
}

.form-input,
.form-select {
  width: 100%;
  padding: 12px 15px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  background-color: #fff;
  transition: border-color 0.3s;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: #D0141B;
}

.form-note {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 15px;
  line-height: 1.6;
}

.form-checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 10px 15px;
  background-color: #f9f9f9;
  border: 2px solid #ddd;
  border-radius: 4px;
  transition: all 0.3s;
}

.checkbox-label:hover {
  background-color: #ffe6e6;
  border-color: #D0141B;
}

.form-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #D0141B;
}

.checkbox-label span {
  font-size: 0.95rem;
  color: #333;
}

.form-submit {
  text-align: center;
  margin-top: 40px;
}

.submit-button {
  background-color: #D0141B;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  padding: 15px 60px;
  border-radius: 50px;
  transition: all 0.3s;
  box-shadow: 0 4px 8px rgba(208, 20, 27, 0.3);
}

.submit-button:hover {
  background-color: #a51016;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(208, 20, 27, 0.4);
}

/* =============================================
   セクション3: サンプル一覧
   ============================================= */
.sample-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
  margin-bottom: 40px;
}

.sample-card {
  overflow: hidden;
  transition: all 0.3s;
}

.sample-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  border-color: #D0141B;
}

.sample-card-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: #f9f9f9;
}

.sample-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s;
}

.sample-card:hover .sample-card-image img {
  transform: scale(1.05);
}

.sample-card-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #333;
  text-align: center;
  padding: 20px 15px;
}

/* =============================================
   セクション5: FAQ
   ============================================= */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-item {
  background-color: #fff;
  border: 2px solid #ddd;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item.active {
  border-color: #D0141B;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px 25px;
  background-color: #f9f9f9;
  text-align: left;
  transition: all 0.3s;
  cursor: pointer;
}

.faq-question:hover {
  background-color: #ffe6e6;
}

.faq-item.active .faq-question {
  background-color: #ffe6e6;
}

.faq-q {
  font-size: 1.5rem;
  font-weight: 900;
  color: #D0141B;
  flex-shrink: 0;
}

.faq-question-text {
  flex: 1;
  font-size: 1rem;
  font-weight: 700;
  color: #333;
  line-height: 1.6;
}

.faq-icon {
  flex-shrink: 0;
  font-size: 1.2rem;
  color: #D0141B;
  transition: transform 0.3s;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, padding 0.3s ease;
  background-color: #fff;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 20px 25px;
}

.faq-answer-text {
  display: flex;
  gap: 15px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: #555;
}

.faq-a {
  font-size: 1.3rem;
  font-weight: 900;
  color: #D0141B;
  flex-shrink: 0;
}

/* =============================================
   フッター
   ============================================= */
.footer {
  background-color: #333;
  color: #fff;
  padding: 30px 20px;
  text-align: center;
}

.footer-text {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-text a {
  color: #fff;
  text-decoration: underline;
}

/* =============================================
   レスポンシブ対応（タブレット）
   ============================================= */
@media (max-width: 1024px) {
  .title-main {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 1.8rem;
    padding: 18px 25px;
  }

  .sample-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
  }
}

/* =============================================
   レスポンシブ対応（モバイル）
   ============================================= */
@media (max-width: 768px) {
  body {
    background-image: url('img/sample_request/mv-background_sp.png');
  }

  .pc-only {
    display: none;
  }

  .br-pc {
    display: none;
  }

  .br-sp {
    display: block;
  }

  .section {
    padding: 0 15px 40px;
  }

  .section-title {
    font-size: 1.5rem;
    padding: 15px;
    margin-bottom: 0;
    min-width: 300px;
    transform: translateX(-50%) translateY(50%);
  }

  .section-description {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }

  .sample-info-text {
    padding: 60px 20px 40px;
    font-size: 0.95rem;
  }

  .sample-group {
    padding: 20px;
  }

  .sample-group-title {
    font-size: 1.3rem;
  }

  .sample-items {
    grid-template-columns: 1fr;
  }

  .sample-info-note, .sample-list-note {
    font-size: 1rem;
    margin-top: 0;
  }

  .sample-form {
    padding: 50px 20px 30px;
  }

  /* 見出しに改行がある場合の余白調整 */
  .section-container:has(.section-title br) .sample-form {
    padding-top: 90px;
  }

  .section-container:has(.section-title br) .sample-info-text {
    padding-top: 90px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .form-group {
    margin-bottom: 0;
  }

  .form-label {
    font-size: 0.95rem;
  }

  .form-checkbox-group {
    grid-template-columns: 1fr;
  }

  .submit-button {
    font-size: 1.1rem;
    padding: 12px 40px;
  }

  .sample-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 10px;
  }

  .sample-card-title {
    font-size: 0.9rem;
    padding: 15px 10px;
  }

  .faq-question {
    padding: 15px 20px;
    gap: 10px;
  }

  .faq-q {
    font-size: 1.3rem;
  }

  .faq-question-text {
    font-size: 0.95rem;
  }

  .faq-icon {
    font-size: 1rem;
  }

  .faq-item.active .faq-answer {
    padding: 15px 20px;
  }

  .faq-answer-text {
    font-size: 0.9rem;
    flex-direction: column;
    gap: 5px;
  }

  .faq-a {
    font-size: 1.2rem;
  }
}

/* =============================================
   アクセシビリティ対応
   ============================================= */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* フォーカス表示 */
button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid #D0141B;
  outline-offset: 2px;
}