/* ============================================
   ヌリエル アプリ — app.css
   モバイルファースト・SPA レイアウト
   コーラル配色 + Zen Maru Gothic 統一版
   ============================================ */

/* --- リセット & CSS変数 --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-pale: #FDF1ED;
  --primary-light: #F0C4B8;
  --primary: #D2735C;
  --primary-dark: #B85A3D;
  --border: #E8DDD8;
  --text: #3D3330;
  --text-light: #7A6B66;
  --cream: #FFFAF6;
  --warm-gray: #6B7280;
  --danger: #EF4444;
  --success: #10B981;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  /* 下部ナビの高さ */
  --nav-height: 64px;
  /* セーフエリア */
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: "Zen Maru Gothic", system-ui, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-size: 16px;
  color: var(--text);
  background: var(--cream);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh;
}

a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* --- レイアウト --- */
.app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

/* アプリヘッダー */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 1rem;
}
.app-header-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.app-header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.remaining-badge {
  background: var(--primary-pale);
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
}

/* メインコンテンツ */
.app-main {
  flex: 1;
  padding: 1.25rem;
  padding-bottom: calc(var(--nav-height) + var(--safe-bottom) + 1.25rem);
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
}

/* --- 画面の表示/非表示 --- */
.screen {
  display: none;
  animation: screenFadeIn 0.35s ease;
}
.screen.active {
  display: block;
}
@keyframes screenFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- 下部ナビゲーション（モバイル） --- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: #fff;
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 50;
  box-shadow: 0 -2px 16px rgba(0, 0, 0, 0.04);
}
.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  color: var(--warm-gray);
  font-size: 0.65rem;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition);
  border: none;
  background: none;
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}
.nav-item.active {
  color: var(--primary);
}

/* --- PC: サイドバーレイアウト --- */
@media (min-width: 768px) {
  .app-wrapper {
    flex-direction: row;
  }
  .bottom-nav {
    position: static;
    flex-direction: column;
    width: 220px;
    min-width: 220px;
    height: auto;
    min-height: 100vh;
    border-top: none;
    border-right: 1px solid var(--border);
    padding: 1rem 0;
    padding-bottom: 0;
    box-shadow: 2px 0 16px rgba(0, 0, 0, 0.04);
    order: -1;
  }
  .nav-item {
    flex-direction: row;
    justify-content: flex-start;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    gap: 0.75rem;
    border-radius: 0 12px 12px 0;
    margin-right: 0.75rem;
  }
  .nav-item.active {
    background: var(--primary-pale);
  }
  .app-main {
    padding-bottom: 2rem;
  }
}

/* --- 認証モーダル --- */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(61, 51, 48, 0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn 0.3s ease;
}
.auth-overlay.hidden { display: none; }
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.auth-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-sm);
  animation: slideUp 0.4s ease;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.auth-card h2 {
  text-align: center;
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.auth-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.3rem; }
.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light);
}
.form-input {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(210, 115, 92, 0.1);
}
.form-input.error {
  border-color: var(--danger);
}
.form-error {
  font-size: 0.75rem;
  color: var(--danger);
  min-height: 1em;
}
.btn-primary {
  padding: 0.85rem;
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary:hover {
  background: var(--primary-dark);
}
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}
/* ローディングスピナー（ボタン内） */
.btn-primary.loading {
  color: transparent;
  pointer-events: none;
}
.btn-primary.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.auth-switch {
  text-align: center;
  font-size: 0.85rem;
  color: var(--warm-gray);
  margin-top: 1rem;
}
.auth-switch a {
  font-weight: 600;
  cursor: pointer;
}

/* --- アップロードエリア --- */
.upload-area {
  border: 3px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  transition: border-color var(--transition), background var(--transition);
  background: #fff;
  position: relative;
}
.upload-area.dragover {
  border-color: var(--primary-light);
  background: var(--primary-pale);
}
.upload-area h3 {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.75rem;
}
.upload-note {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 0.75rem;
}
.file-input-hidden {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}
.upload-buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}
.upload-btn {
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  cursor: pointer;
}
.upload-btn:hover {
  border-color: var(--primary-light);
  background: var(--primary-pale);
}
.upload-btn-camera {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.upload-btn-camera:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

/* 画像プレビュー */
.preview-container {
  display: none;
  margin-top: 1.25rem;
  text-align: center;
}
.preview-container.show { display: block; }
.preview-img {
  max-width: 100%;
  max-height: 300px;
  border-radius: var(--radius);
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
}
.preview-name {
  font-size: 0.8rem;
  color: var(--warm-gray);
  margin-top: 0.5rem;
}
.preview-change {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.5rem;
  display: inline-block;
}

/* --- スタイル選択カード --- */
.style-select-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin: 1.5rem 0 0.75rem;
}
.style-select-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
.style-option {
  background: #fff;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  position: relative;
  -webkit-tap-highlight-color: transparent;
}
.style-option:hover {
  border-color: var(--primary-light);
}
.style-option.selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(210, 115, 92, 0.15);
  background: var(--primary-pale);
}
.style-option.locked {
  opacity: 0.55;
  cursor: not-allowed;
}
.style-option.locked::after {
  content: '🔒';
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-size: 0.9rem;
}
.style-option-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

/* --- 生成ボタン --- */
.generate-section {
  margin-top: 1.5rem;
  text-align: center;
}
.btn-generate {
  padding: 1rem 2.5rem;
  background: var(--primary);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-generate:hover {
  background: var(--primary-dark);
}
.btn-generate:active { transform: scale(0.97); }
.btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.btn-generate.loading {
  color: transparent;
  pointer-events: none;
}
.btn-generate.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* --- 変換中の表示 --- */
.converting-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(61, 51, 48, 0.7);
  z-index: 150;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  color: #fff;
  padding: 2rem;
  text-align: center;
}
.converting-overlay.show { display: flex; }
.converting-spinner {
  width: 64px;
  height: 64px;
  border: 4px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.converting-text {
  font-size: 1.1rem;
  font-weight: 600;
}
.converting-sub {
  font-size: 0.85rem;
  opacity: 0.7;
}
/* プログレスバー */
.progress-bar-wrap {
  width: 100%;
  max-width: 300px;
  height: 6px;
  background: rgba(255,255,255,0.2);
  border-radius: 9999px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--primary);
  border-radius: 9999px;
  transition: width 0.5s ease;
}

/* --- 変換結果 --- */
.result-section {
  display: none;
  text-align: center;
  margin-top: 1.5rem;
  animation: screenFadeIn 0.5s ease;
}
.result-section.show { display: block; }
.result-preview {
  max-width: 100%;
  max-height: 400px;
  border-radius: var(--radius);
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
  background: #fff;
}
.result-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
.btn-secondary {
  padding: 0.7rem 1.5rem;
  background: #fff;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  border: 2px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
  transition: border-color var(--transition), background var(--transition);
}
.btn-secondary:hover {
  border-color: var(--primary-light);
  background: var(--primary-pale);
}

/* --- ギャラリー --- */
.gallery-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--warm-gray);
}
.gallery-empty-sub {
  font-size: 0.85rem;
  margin-top: 0.5rem;
  color: var(--text-light);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: border-color var(--transition);
  position: relative;
  border: 2px solid transparent;
}
.gallery-item:hover {
  border-color: var(--primary-light);
}
.gallery-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.gallery-item-date {
  padding: 0.5rem 0.75rem;
  font-size: 0.7rem;
  color: var(--warm-gray);
}

@media (min-width: 640px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ギャラリー詳細モーダル */
.gallery-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(61, 51, 48, 0.6);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.gallery-modal.show { display: flex; }
.gallery-modal-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-sm);
  animation: slideUp 0.4s ease;
  text-align: center;
}
.gallery-modal-img {
  max-width: 100%;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}
.gallery-modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-danger {
  padding: 0.6rem 1.2rem;
  background: #fff;
  color: var(--danger);
  font-size: 0.85rem;
  font-weight: 600;
  border: 2px solid #FEE2E2;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition), border-color var(--transition);
}
.btn-danger:hover {
  background: #FEF2F2;
  border-color: var(--danger);
}

/* --- プラン画面 --- */
.current-plan-card {
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.current-plan-label {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-bottom: 0.25rem;
}
.current-plan-name {
  font-size: 1.5rem;
  font-weight: 700;
}
.current-plan-detail {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-top: 0.5rem;
}
.plan-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.plan-option-card {
  background: #fff;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.plan-option-info h3 {
  font-size: 1rem;
  color: var(--text);
}
.plan-option-info p {
  font-size: 0.8rem;
  color: var(--warm-gray);
}
.btn-plan {
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: background var(--transition);
}
.btn-plan:hover { background: var(--primary-dark); color: #fff; }
.btn-plan-upgrade {
  background: var(--primary);
  color: #fff;
}
.btn-plan-current {
  background: var(--primary-pale);
  color: var(--primary);
  cursor: default;
}
.btn-plan-current:hover {
  background: var(--primary-pale);
  color: var(--primary);
}

/* --- 設定画面 --- */
.settings-section {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}
.settings-section h3 {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 1rem;
  font-weight: 700;
}
.settings-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}
.settings-row:last-child { border-bottom: none; }
.settings-row-label {
  font-size: 0.9rem;
  color: #374151;
}
.settings-row-value {
  font-size: 0.85rem;
  color: var(--warm-gray);
}
.btn-settings {
  padding: 0.5rem 1rem;
  background: var(--primary-pale);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition);
}
.btn-settings:hover { background: var(--primary-light); }
.btn-logout {
  width: 100%;
  padding: 0.85rem;
  background: #fff;
  color: var(--danger);
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid #FEE2E2;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition);
  margin-top: 0.5rem;
}
.btn-logout:hover { background: #FEF2F2; }
.btn-withdraw {
  width: 100%;
  padding: 0.75rem;
  background: none;
  color: var(--warm-gray);
  font-size: 0.8rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  text-decoration: underline;
  margin-top: 0.5rem;
}

/* --- トースト通知 --- */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}
.toast {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.25rem;
  box-shadow: var(--shadow-sm);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  pointer-events: auto;
  max-width: 340px;
}
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateY(-10px); }
}

/* --- 汎用ユーティリティ --- */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.screen-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.25rem;
}

/* --- 決済方法セクション --- */
.payment-methods-section {
  margin-top: 2rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.payment-methods-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
}
.payment-methods-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.payment-method-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--primary-pale);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 500;
  transition: border-color var(--transition), background var(--transition);
}
.payment-method-badge:hover {
  border-color: var(--primary-light);
  background: var(--primary-light);
}
.payment-method-icon {
  display: flex;
  align-items: center;
  font-size: 1.2rem;
}
.payment-method-name {
  white-space: nowrap;
}
.payment-methods-note {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--warm-gray);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.payment-methods-note::before {
  content: '🔒';
  font-size: 0.85rem;
}

/* Apple Pay / Google Pay インラインボタン */
#paymentRequestButtonContainer {
  max-width: 400px;
}
#payment-request-button {
  min-height: 48px;
}

/* --- モバイル最適化強化 --- */
/* タッチターゲット拡大（44px以上） */
@media (pointer: coarse) {
  .btn-plan,
  .btn-settings,
  .btn-primary,
  .btn-secondary,
  .btn-generate {
    min-height: 48px;
    min-width: 48px;
  }
  .nav-item {
    min-height: 48px;
  }
  .style-option {
    min-height: 80px;
  }
  .upload-area {
    min-height: 160px;
  }
  .faq-question {
    min-height: 52px;
  }
}

/* iOS Safari ノッチ対応強化 */
@supports (padding: env(safe-area-inset-top)) {
  .app-header {
    padding-top: env(safe-area-inset-top);
  }
  .bottom-nav {
    padding-bottom: max(var(--safe-bottom), 8px);
  }
}

/* スクロール改善（iOS Safari の慣性スクロール） */
.app-main {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
}

/* Android Chrome アドレスバー対応 */
@supports (min-height: 100dvh) {
  .app-wrapper {
    min-height: 100dvh;
  }
}

/* 決済ボタンのローディング状態 */
.btn-plan.loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}
.btn-plan.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* 横向き対応 */
@media (orientation: landscape) and (max-height: 500px) {
  .bottom-nav {
    height: calc(48px + var(--safe-bottom));
  }
  .nav-item-icon {
    font-size: 1.1rem;
  }
  .nav-item {
    font-size: 0.6rem;
  }
  .app-main {
    padding-bottom: calc(48px + var(--safe-bottom) + 1rem);
  }
}

/* PWA スタンドアロンモード */
@media (display-mode: standalone) {
  .app-header {
    padding-top: env(safe-area-inset-top);
  }
}

/* プラン変更確認モーダル */
.payment-confirm-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(61, 51, 48, 0.5);
  z-index: 180;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.payment-confirm-overlay.show {
  display: flex;
}
.payment-confirm-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  width: 100%;
  max-width: 380px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  animation: slideUp 0.4s ease;
}
.payment-confirm-card h3 {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.payment-confirm-card p {
  font-size: 0.9rem;
  color: var(--warm-gray);
  margin-bottom: 1.5rem;
}
.payment-confirm-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.payment-confirm-actions .btn-primary {
  width: 100%;
}
.payment-confirm-actions .btn-secondary {
  width: 100%;
  text-align: center;
}