/* CSS Custom Properties (Variables) */
:root {
  --primary-color: #f5e6e3;
  --secondary-color: #e8d4d1;
  --accent-color: #8b5a6b;
  --text-color: #2c2c2c;
  --background-color: #fafafa;
  --white: #ffffff;
  --shadow-light: 0 2px 10px rgba(139, 90, 107, 0.1);
  --shadow-medium: 0 4px 20px rgba(139, 90, 107, 0.15);
  --shadow-strong: 0 8px 30px rgba(139, 90, 107, 0.2);
  --border-radius: 20px;
  --transition: 0.3s ease;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  background: linear-gradient(135deg, var(--background-color) 0%, var(--primary-color) 100%);
  min-height: 100vh;
  opacity: 0;
  animation: pageLoad 0.8s ease forwards;
  padding-bottom: 120px; /* フッター分の余白 */
}

/* パスワード認証オーバーレイが表示されている場合はスクロール禁止 */
body.password-locked {
  overflow: hidden;
}

@keyframes pageLoad {
  to {
    opacity: 1;
  }
}

/* Typography */
h1, h2, h3 {
  font-weight: 600;
  margin-bottom: 1rem;
}

/* Material Icons調整 */
.material-icons {
  font-family: 'Material Icons';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
}

/* Password Overlay */
.password-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(139, 90, 107, 0.95) 0%, rgba(166, 114, 132, 0.95) 100%);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  animation: fadeIn 0.5s ease;
}

.password-overlay.hidden {
  animation: fadeOut 0.5s ease forwards;
  pointer-events: none;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

.password-container {
  background: var(--white);
  border-radius: 30px;
  padding: 3rem 2.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 400px;
  width: 90%;
  text-align: center;
  animation: slideUp 0.6s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.password-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--accent-color) 0%, #a67284 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(139, 90, 107, 0.3);
}

.password-icon .material-icons {
  font-size: 40px;
  color: var(--white);
}

.password-title {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.password-subtitle {
  color: var(--text-color);
  opacity: 0.7;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

.password-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.password-input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-icon {
  position: absolute;
  left: 1rem;
  color: var(--accent-color);
  opacity: 0.6;
  font-size: 20px;
}

.password-input {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  border: 2px solid var(--secondary-color);
  border-radius: 15px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--background-color);
}

.password-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 4px rgba(139, 90, 107, 0.1);
}

.password-submit {
  width: 100%;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--accent-color) 0%, #a67284 100%);
  color: var(--white);
  border: none;
  border-radius: 15px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(139, 90, 107, 0.3);
}

.password-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 90, 107, 0.4);
}

.password-submit:active {
  transform: translateY(0);
}

.password-error {
  color: #d32f2f;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: #ffebee;
  padding: 0.75rem;
  border-radius: 10px;
  animation: shake 0.5s ease;
}

.password-error .material-icons {
  font-size: 20px;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  75% { transform: translateX(10px); }
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: clamp(3rem, 8vw, 6rem);
  color: var(--white);
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-family: 'Dancing Script', cursive;
  font-weight: 400;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--white);
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
}

/* Header Section */
.hero-header {
  background: linear-gradient(135deg, var(--accent-color) 0%, #a67284 50%, var(--secondary-color) 100%);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="2.5" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="10" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="90" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

/* Main Content */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Welcome Section */
.welcome-section {
  padding: 3rem 0;
  text-align: center;
}

.welcome-card {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-medium);
  display: inline-block;
  position: relative;
  overflow: hidden;
}

.welcome-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
}

.welcome-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.welcome-text {
  font-size: 1.2rem;
  color: var(--text-color);
  opacity: 0.8;
}

/* Category Section */
.category-section {
  padding: 2rem 0;
  text-align: center;
  display: none; /* フィルタ機能は残すが、UIは非表示 */
}

.category-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.category-btn {
  background: var(--white);
  border: 2px solid var(--primary-color);
  border-radius: 25px;
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-light);
}

.category-btn:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.category-btn.active {
  background: var(--accent-color);
  color: var(--white);
  border-color: var(--accent-color);
}

.category-btn .material-icons {
  font-size: 1.2rem;
}

/* Products Section */
.products-section {
  padding: 2rem 0 6rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  animation: gridLoad 0.6s ease 0.2s both;
  max-width: 100%;
}

/* デスクトップで3列固定表示 */
@media (min-width: 769px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@keyframes gridLoad {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Product Card */
.product-card {
  background: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  cursor: pointer;
  border: 3px solid transparent;
  animation: cardSlideIn 0.6s ease both;
  display: flex; /* flexboxを適用して子要素の配置を制御 */
  flex-direction: column; /* 縦方向に要素を並べる */
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* プレースホルダー画像のスタイル */
.placeholder-image {
  border: 2px dashed var(--primary-color);
  background-color: var(--background-color);
}

.placeholder-image:hover {
  opacity: 0.8;
}

/* 404エラー表示の改善 */
.image-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--accent-color);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem;
}

.image-error .error-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-strong);
}

.product-card.selected {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px var(--accent-color), var(--shadow-strong);
}

.product-card.dimmed {
  opacity: 0.6;
}

.product-image-container {
  position: relative;
  height: 250px;
  overflow: hidden;
  background: #ffffff; /* 白色背景 */
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: contain; /* cover から contain に変更して画像全体を表示 */
  transition: var(--transition);
  background: #ffffff; /* 画像自体の背景も白色 */
}

/* モダンなスケルトンローディング効果 */
.product-image.loading {
  background: linear-gradient(
    90deg,
    #f0f0f0 0%,
    #f8f8f8 20%,
    #f0f0f0 40%,
    #f0f0f0 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  position: relative;
  overflow: hidden;
}

/* シマーアニメーション */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* ローディング中のスピナー */
.product-image.loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border: 3px solid #e0e0e0;
  border-top: 3px solid var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ローディング完了時のフェードイン */
.product-image:not(.loading) {
  animation: fadeInImage 0.4s ease-out;
}

@keyframes fadeInImage {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.product-image-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: 0.3;
  color: var(--accent-color);
}

.product-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  /* height: 100%; を削除し、内容に応じて高さを自動調整 */
}

.product-header {
  margin-bottom: 1rem;
}

.product-name {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.3rem;
}

.product-brand {
  font-size: 0.9rem;
  color: var(--accent-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem; /* リンクとの間に余白を追加 */
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--text-color);
  opacity: 0.7;
  text-decoration: none;
  transition: var(--transition);
  margin-top: 0.5rem; /* ブランドとの間に余白を追加 */
}

.product-link:hover {
  opacity: 1;
  color: var(--accent-color);
  text-decoration: underline;
}

.product-link .material-icons {
  font-size: 1rem;
}

.product-specs {
  font-size: 0.85rem;
  color: var(--text-color);
  opacity: 0.7;
  margin-bottom: 0.5rem;
}

.product-description {
  font-size: 0.95rem;
  color: var(--text-color);
  opacity: 0.8;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

/* Variant Selection */
.variant-selection {
  margin-bottom: 1.5rem;
  min-height: 4rem; /* カラーオプション用の最小高さを確保 */
}

.variant-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.8rem;
  display: block;
}

.color-options {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  min-height: 35px; /* カラーサークルの高さ分を確保 */
  align-items: center;
}

.color-option {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  border: 3px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-light);
}

.color-option:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-medium);
}

.color-option.selected {
  border-color: var(--accent-color);
  transform: scale(1.1);
  box-shadow: 0 0 0 2px var(--accent-color), var(--shadow-medium);
}

.color-option::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--white);
  font-weight: bold;
  font-size: 14px;
  opacity: 0;
  transition: var(--transition);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.color-option.selected::after {
  opacity: 1;
}

/* Selection Button */
.select-button {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-color) 0%, #a67284 100%);
  color: var(--white);
  border: none;
  border-radius: 15px;
  padding: 1rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: auto;
  position: relative;
  overflow: hidden;
}

.select-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  background: linear-gradient(135deg, #9d6b7d 0%, #b8839a 100%);
}

.select-button.selected {
  background: linear-gradient(135deg, #2c5f2d 0%, #4a7c59 100%);
  box-shadow: 0 0 0 2px rgba(44, 95, 45, 0.3), var(--shadow-medium);
  position: relative;
}

.select-button.selected::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 70%
  );
  animation: selectedShine 2s ease-in-out infinite;
}

@keyframes selectedShine {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}

/* ボタンローディング状態 */
.select-button.loading {
  cursor: wait;
  pointer-events: none;
  background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
  opacity: 0.8;
}

.select-button.loading::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: buttonShimmer 1.5s ease-in-out infinite;
}

.select-button.loading .material-icons {
  animation: spin 1s linear infinite;
}

.select-button .material-icons {
  font-size: 1.2rem;
}

@keyframes buttonShimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Footer Selection */
.footer-selection {
  position: fixed !important;
  bottom: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  background: #ffffff !important;
  border-top: 2px solid #e8d4d1 !important;
  padding: 1.5rem 2rem !important;
  box-shadow: 0 -4px 20px rgba(139, 90, 107, 0.2) !important;
  z-index: 1000 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 2rem !important;
  min-height: 80px !important; /* フッターの最小高さを維持 */
  visibility: visible !important;
  opacity: 1 !important;
}

.selection-summary {
  flex: 1;
}

.no-selection {
  color: #2c2c2c !important;
  opacity: 0.8 !important;
  font-style: italic !important;
  font-size: 1rem !important;
  margin: 0 !important;
  padding: 0 !important;
  display: block !important;
  visibility: visible !important;
}

.selected-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.selected-item-image {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  object-fit: cover;
}

.selected-item-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.selected-item-info p {
  font-size: 0.85rem;
  color: var(--accent-color);
  margin: 0;
}

.decide-button {
  background: linear-gradient(135deg, var(--accent-color) 0%, #a67284 100%) !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: 15px !important;
  padding: 1rem 2rem !important;
  font-size: 1.1rem !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.3s ease !important;
  display: flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
  min-width: 200px !important;
  max-width: 300px !important;
  justify-content: center !important;
  height: 50px !important;
  visibility: visible !important;
  opacity: 1 !important;
  position: relative !important;
  overflow: hidden !important;
}

.decide-button:disabled {
  background: #cccccc !important;
  cursor: not-allowed;
  transform: none;
  opacity: 0.6;
}

.decide-button:disabled .material-icons {
  opacity: 0.6;
}

/* 決定ボタンローディング状態 */
.decide-button.loading {
  background: linear-gradient(135deg, #6c757d 0%, #495057 100%) !important;
  cursor: wait !important;
  pointer-events: none !important;
  opacity: 0.8 !important;
}

.decide-button.loading::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  animation: buttonShimmer 1.2s ease-in-out infinite;
}

.decide-button.loading .material-icons {
  animation: spin 1s linear infinite;
}

.decide-button:not(:disabled):hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  background: linear-gradient(135deg, #9d6b7d 0%, #b8839a 100%) !important;
}

.decide-button .material-icons {
  font-size: 1.3rem;
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal.show {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--white);
  border-radius: var(--border-radius);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-strong);
  transform: scale(0.9);
  transition: var(--transition);
  position: relative;
}

/* Modal Illustration Images */
.modal-illust {
  position: absolute;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

.modal-illust-confirm {
  top: 10px;
  right: 10px;
  width: 160px;
  height: auto;
  transform: rotate(3deg);
}

.modal-illust-complete-left {
  bottom: 10px;
  left: 10px;
  width: 100px;
  height: auto;
  transform: rotate(-5deg);
}

.modal-illust-complete-right {
  bottom: 10px;
  right: 10px;
  width: 100px;
  height: auto;
  transform: rotate(5deg);
}

/* モーダル内のコンテンツを画像より前面に */
.modal-header,
.modal-body,
.modal-footer {
  position: relative;
  z-index: 1;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .modal-illust-confirm {
    width: 120px;
    right: 8px;
    top: 8px;
  }

  .modal-illust-complete-left {
    width: 70px;
    left: 8px;
    bottom: 8px;
  }

  .modal-illust-complete-right {
    width: 70px;
    right: 8px;
    bottom: 8px;
  }
}

@media (max-width: 480px) {
  .modal-illust-confirm {
    width: 90px;
    right: 10px;
    top: 10px;
  }

  .modal-illust-complete-left {
    width: 60px;
    left: 10px;
    bottom: 10px;
  }

  .modal-illust-complete-right {
    width: 60px;
    right: 10px;
    bottom: 10px;
  }
}

.modal.show .modal-content {
  transform: scale(1);
}

.modal-header {
  padding: 2rem 2rem 1rem;
  text-align: center;
  border-bottom: 1px solid var(--primary-color);
}

.modal-header h3 {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin: 0;
}

.modal-body {
  padding: 2rem;
}

.modal-footer {
  padding: 1rem 2rem 2rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.btn {
  padding: 0.8rem 2rem;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  min-width: 120px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color) 0%, #a67284 100%);
  color: var(--white);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.btn-secondary {
  background: var(--primary-color);
  color: var(--text-color);
  border: 1px solid var(--secondary-color);
}

.btn-secondary:hover {
  background: var(--secondary-color);
}

/* Confirmation Details */
.confirmation-details {
  text-align: center;
}

.confirmation-product {
  background: var(--primary-color);
  border-radius: 15px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.confirmation-product h4 {
  font-size: 1.2rem;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.confirmation-details-list {
  list-style: none;
  text-align: left;
}

.confirmation-details-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(139, 90, 107, 0.1);
  display: flex;
  justify-content: space-between;
}

.confirmation-details-list li:last-child {
  border-bottom: none;
}

.confirmation-question {
  margin-top: 1rem;
  font-weight: 600;
  color: var(--text-color);
}

/* Loading Overlay (for form submissions) */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

/* Products Loading Overlay */
.products-loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 400px;
  background: rgba(255, 255, 255, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  border-radius: var(--border-radius);
}

.products-loading-overlay.show {
  display: flex;
}

.products-section {
  position: relative;
  min-height: 400px;
}

/* スケルトンローディング */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  animation: skeletonFadeIn 0.3s ease;
}

.skeleton-card {
  background: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  animation: skeletonPulse 2s ease-in-out infinite;
}

.skeleton-image {
  height: 250px;
  background: linear-gradient(
    90deg,
    var(--primary-color) 25%,
    var(--secondary-color) 50%,
    var(--primary-color) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 2s ease-in-out infinite;
}

.skeleton-content {
  padding: 1.5rem;
}

.skeleton-line {
  height: 1rem;
  background: linear-gradient(
    90deg,
    var(--primary-color) 25%,
    var(--secondary-color) 50%,
    var(--primary-color) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 2s ease-in-out infinite;
  border-radius: 5px;
  margin-bottom: 1rem;
}

.skeleton-line.title {
  height: 1.3rem;
  width: 80%;
}

.skeleton-line.brand {
  height: 0.9rem;
  width: 60%;
}

.skeleton-line.description {
  height: 1rem;
  width: 100%;
}

.skeleton-line.description:last-of-type {
  width: 70%;
}

.skeleton-button {
  height: 3rem;
  background: linear-gradient(
    90deg,
    var(--primary-color) 25%,
    var(--secondary-color) 50%,
    var(--primary-color) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 2s ease-in-out infinite;
  border-radius: 15px;
  margin-top: 1rem;
}

@keyframes skeletonShimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes skeletonPulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

@keyframes skeletonFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.loading-spinner {
  text-align: center;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--primary-color);
  border-top: 4px solid var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-spinner p {
  font-weight: 600;
  color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  .main-content {
    padding: 0 1rem;
  }

  .products-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-selection {
    flex-direction: column;
    gap: 0.5rem; /* スマートフォンでのギャップを調整 */
    padding: 0.8rem 1rem; /* スマートフォンでのパディングを調整 */
  }

  .decide-button {
    width: 100%;
  }

  .category-buttons {
    gap: 0.5rem;
  }

  .category-btn {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }

  .modal-content {
    margin: 1rem;
    width: calc(100% - 2rem);
  }
}

@media (max-width: 480px) {
  .hero-header {
    padding: 3rem 1rem;
  }

  .welcome-card {
    padding: 1.5rem;
  }

  .product-content {
    padding: 1rem;
  }

  .category-buttons {
    flex-direction: column;
    align-items: center;
  }

  .category-btn {
    width: 100%;
    max-width: 250px;
    justify-content: center;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --primary-color: #e0e0e0;
    --secondary-color: #d0d0d0;
    --accent-color: #000000;
    --text-color: #000000;
    --background-color: #ffffff;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  .hero-header,
  .footer-selection,
  .modal,
  .loading-overlay {
    display: none !important;
  }

  .main-content {
    max-width: none;
    margin: 0;
    padding: 0;
  }

  .product-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}