/* ========================================
   Bottom Sheet Component - Native App Style
   ネイティブアプリ風ボトムシート
   ======================================== */

/* ========== 基本構造 ========== */
.bottom-sheet {
  position: fixed;
  inset: 0;
  z-index: 1050;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: flex-end;
}

.bottom-sheet.active {
  opacity: 1;
  pointer-events: all;
}

/* Backdrop（背景オーバーレイ） */
.bottom-sheet-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* ========== コンテンツエリア ========== */
.bottom-sheet-content {
  position: relative;
  width: 100%;
  background: var(--bg-100, #ffffff);
  border-radius: 16px 16px 0 0;
  max-height: 90vh;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.bottom-sheet.active .bottom-sheet-content {
  transform: translateY(0);
}

/* ========== ドラッグハンドル ========== */
.bottom-sheet-handle {
  width: 32px;
  height: 4px;
  background: var(--text-300, #9ca3af);
  border-radius: 2px;
  margin: 12px auto 8px;
  cursor: grab;
  flex-shrink: 0;
  transition: background 0.2s ease;
}

.bottom-sheet-handle:active {
  cursor: grabbing;
  background: var(--text-200, #6b7280);
}

.bottom-sheet-handle:hover {
  background: var(--text-200, #6b7280);
}

/* ========== ヘッダー ========== */
.bottom-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light, #e5e7eb);
  flex-shrink: 0;
}

.bottom-sheet-header h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-100, #111827);
  display: flex;
  align-items: center;
  gap: 8px;
}

.bottom-sheet-header .btn-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg-200, #f3f4f6);
  color: var(--text-200, #6b7280);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1.25rem;
  padding: 0;
}

.bottom-sheet-header .btn-close:hover {
  background: var(--bg-300, #e5e7eb);
  color: var(--text-100, #111827);
  transform: scale(1.1);
}

.bottom-sheet-header .btn-close:active {
  transform: scale(0.95);
}

/* ========== ボディ ========== */
.bottom-sheet-body {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 20px;
  -webkit-overflow-scrolling: touch;
}

/* iOSのバウンススクロール対応 */
.bottom-sheet-body::-webkit-scrollbar {
  width: 6px;
}

.bottom-sheet-body::-webkit-scrollbar-thumb {
  background: var(--bg-300, #e5e7eb);
  border-radius: 3px;
}

.bottom-sheet-body::-webkit-scrollbar-track {
  background: transparent;
}

/* ========== ステップインジケーター ========== */
.step-indicator {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  flex-shrink: 0;
}

.step-indicator .step {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-200, #f3f4f6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-200, #6b7280);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
}

.step-indicator .step::after {
  content: '';
  position: absolute;
  width: 40px;
  height: 2px;
  background: var(--bg-200, #f3f4f6);
  right: -44px;
  top: 50%;
  transform: translateY(-50%);
  transition: background 0.3s ease;
}

.step-indicator .step:last-child::after {
  display: none;
}

.step-indicator .step.active {
  background: var(--primary-color, #0066cc);
  color: white;
  transform: scale(1.15);
  box-shadow: 0 2px 8px rgba(0, 102, 204, 0.3);
}

.step-indicator .step.completed {
  background: var(--success-color, #10b981);
  color: white;
  transform: scale(1);
}

.step-indicator .step.completed::after {
  background: var(--success-color, #10b981);
}

.step-indicator .step.completed i {
  font-size: 1rem;
}

/* ========== フォームステップ ========== */
.form-step {
  display: none;
  animation: slideInRight 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.form-step.active {
  display: block;
}

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

/* ========== 入力フィールド強化 ========== */
.bottom-sheet-body label {
  display: block;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-100, #111827);
  margin-bottom: 8px;
}

.bottom-sheet-body .required {
  color: var(--danger-color, #ef4444);
  margin-left: 2px;
}

.form-control-lg {
  height: 56px;
  font-size: 1.1rem;
  border-radius: 12px;
  border: 2px solid var(--border-light, #e5e7eb);
  padding: 16px;
  transition: all 0.2s ease;
  background: var(--bg-100, #ffffff);
  color: var(--text-100, #111827);
  width: 100%;
  box-sizing: border-box;
}

.form-control-lg:focus {
  border-color: var(--primary-color, #0066cc);
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
  outline: none;
}

.form-control-lg::placeholder {
  color: var(--text-300, #9ca3af);
}

/* テキストエリア */
.bottom-sheet-body textarea.form-control {
  min-height: 120px;
  resize: vertical;
  border-radius: 12px;
  border: 2px solid var(--border-light, #e5e7eb);
  padding: 12px 16px;
  font-size: 1rem;
  line-height: 1.6;
  transition: all 0.2s ease;
}

.bottom-sheet-body textarea.form-control:focus {
  border-color: var(--primary-color, #0066cc);
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
  outline: none;
}

/* ========== オートコンプリート候補 ========== */
.input-with-suggestions {
  position: relative;
}

.suggestions-inline {
  margin-top: 8px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-100, #ffffff);
  border: 1px solid var(--border-light, #e5e7eb);
  max-height: 0;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.suggestions-inline.active {
  max-height: 240px;
  opacity: 1;
}

.suggestions-list {
  max-height: 240px;
  overflow-y: auto;
}

.suggestion-item {
  padding: 12px 16px;
  background: var(--bg-100, #ffffff);
  border-bottom: 1px solid var(--border-light, #e5e7eb);
  cursor: pointer;
  transition: background 0.2s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover {
  background: var(--bg-200, #f3f4f6);
}

.suggestion-item:active {
  background: var(--primary-100, #dbeafe);
}

.suggestion-item .stock-info {
  flex: 1;
}

.suggestion-item .stock-code {
  font-weight: 600;
  color: var(--primary-color, #0066cc);
  font-size: 0.95rem;
}

.suggestion-item .stock-name {
  color: var(--text-100, #111827);
  font-size: 1rem;
  margin-left: 8px;
}

.suggestion-item .stock-meta {
  font-size: 0.8rem;
  color: var(--text-200, #6b7280);
  display: flex;
  gap: 8px;
}

/* ========== ナビゲーションボタン ========== */
.step-navigation {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light, #e5e7eb);
  flex-shrink: 0;
}

.step-navigation .btn {
  flex: 1;
  height: 48px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.step-navigation .btn-outline {
  background: var(--bg-100, #ffffff);
  border: 2px solid var(--border-light, #e5e7eb);
  color: var(--text-100, #111827);
}

.step-navigation .btn-outline:hover {
  background: var(--bg-200, #f3f4f6);
  border-color: var(--border-color, #d1d5db);
}

.step-navigation .btn-outline:active {
  transform: scale(0.98);
}

.step-navigation .btn-primary {
  background: var(--primary-color, #0066cc);
  color: white;
}

.step-navigation .btn-primary:hover {
  background: var(--primary-dark, #0052a3);
  box-shadow: 0 2px 8px rgba(0, 102, 204, 0.3);
}

.step-navigation .btn-primary:active {
  transform: scale(0.98);
}

.step-navigation .btn-success {
  background: var(--success-color, #10b981);
  color: white;
}

.step-navigation .btn-success:hover {
  background: var(--success-dark, #059669);
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.step-navigation .btn-success:active {
  transform: scale(0.98);
}

.step-navigation .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ========== グリッドレイアウト ========== */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -6px;
}

.col-6 {
  flex: 0 0 50%;
  max-width: 50%;
  padding: 0 6px;
}

.g-2 > * {
  margin-bottom: 12px;
}

/* ========== アクセシビリティ ========== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ========== レスポンシブ対応 ========== */
@media (min-width: 768px) {
  .bottom-sheet-content {
    max-width: 600px;
    margin: 0 auto;
    border-radius: 16px;
    max-height: 80vh;
  }

  .bottom-sheet {
    align-items: center;
  }
}

/* ========== ダークモード対応 ========== */
.dark-mode .bottom-sheet-content,
[data-theme="dark"] .bottom-sheet-content {
  background: var(--dm-card, #1e293b);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.4);
}

.dark-mode .bottom-sheet-header,
[data-theme="dark"] .bottom-sheet-header {
  border-bottom-color: var(--dm-border, #334155);
}

.dark-mode .bottom-sheet-header h3,
[data-theme="dark"] .bottom-sheet-header h3 {
  color: var(--dm-text-100, #f1f5f9);
}

.dark-mode .bottom-sheet-header .btn-close,
[data-theme="dark"] .bottom-sheet-header .btn-close {
  background: var(--dm-bg-200, #334155);
  color: var(--dm-text-200, #94a3b8);
}

.dark-mode .bottom-sheet-header .btn-close:hover,
[data-theme="dark"] .bottom-sheet-header .btn-close:hover {
  background: var(--dm-bg-300, #475569);
  color: var(--dm-text-100, #f1f5f9);
}

.dark-mode .bottom-sheet-handle,
[data-theme="dark"] .bottom-sheet-handle {
  background: var(--dm-text-300, #64748b);
}

.dark-mode .bottom-sheet-handle:active,
.dark-mode .bottom-sheet-handle:hover,
[data-theme="dark"] .bottom-sheet-handle:active,
[data-theme="dark"] .bottom-sheet-handle:hover {
  background: var(--dm-text-200, #94a3b8);
}

.dark-mode .step-indicator .step,
[data-theme="dark"] .step-indicator .step {
  background: var(--dm-bg-200, #334155);
  color: var(--dm-text-200, #94a3b8);
}

.dark-mode .step-indicator .step::after,
[data-theme="dark"] .step-indicator .step::after {
  background: var(--dm-bg-200, #334155);
}

.dark-mode .step-indicator .step.active,
[data-theme="dark"] .step-indicator .step.active {
  background: var(--dm-primary-100, #3b82f6);
  color: white;
}

.dark-mode .step-indicator .step.completed,
[data-theme="dark"] .step-indicator .step.completed {
  background: var(--success-color, #10b981);
  color: white;
}

.dark-mode .step-indicator .step.completed::after,
[data-theme="dark"] .step-indicator .step.completed::after {
  background: var(--success-color, #10b981);
}

.dark-mode .bottom-sheet-body label,
[data-theme="dark"] .bottom-sheet-body label {
  color: var(--dm-text-100, #f1f5f9);
}

.dark-mode .form-control-lg,
.dark-mode .bottom-sheet-body textarea.form-control,
[data-theme="dark"] .form-control-lg,
[data-theme="dark"] .bottom-sheet-body textarea.form-control {
  background: var(--dm-bg-200, #334155);
  border-color: var(--dm-border, #475569);
  color: var(--dm-text-100, #f1f5f9);
}

.dark-mode .form-control-lg:focus,
.dark-mode .bottom-sheet-body textarea.form-control:focus,
[data-theme="dark"] .form-control-lg:focus,
[data-theme="dark"] .bottom-sheet-body textarea.form-control:focus {
  border-color: var(--dm-primary-100, #3b82f6);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.dark-mode .form-control-lg::placeholder,
.dark-mode .bottom-sheet-body textarea.form-control::placeholder,
[data-theme="dark"] .form-control-lg::placeholder,
[data-theme="dark"] .bottom-sheet-body textarea.form-control::placeholder {
  color: var(--dm-text-300, #64748b);
}

.dark-mode .suggestions-inline,
[data-theme="dark"] .suggestions-inline {
  background: var(--dm-card, #1e293b);
  border-color: var(--dm-border, #334155);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.dark-mode .suggestion-item,
[data-theme="dark"] .suggestion-item {
  background: var(--dm-card, #1e293b);
  border-bottom-color: var(--dm-border, #334155);
}

.dark-mode .suggestion-item:hover,
[data-theme="dark"] .suggestion-item:hover {
  background: var(--dm-bg-200, #334155);
}

.dark-mode .suggestion-item:active,
[data-theme="dark"] .suggestion-item:active {
  background: rgba(59, 130, 246, 0.1);
}

.dark-mode .suggestion-item .stock-code,
[data-theme="dark"] .suggestion-item .stock-code {
  color: var(--dm-primary-200, #60a5fa);
}

.dark-mode .suggestion-item .stock-name,
[data-theme="dark"] .suggestion-item .stock-name {
  color: var(--dm-text-100, #f1f5f9);
}

.dark-mode .suggestion-item .stock-meta,
[data-theme="dark"] .suggestion-item .stock-meta {
  color: var(--dm-text-200, #94a3b8);
}

.dark-mode .step-navigation,
[data-theme="dark"] .step-navigation {
  border-top-color: var(--dm-border, #334155);
}

.dark-mode .step-navigation .btn-outline,
[data-theme="dark"] .step-navigation .btn-outline {
  background: var(--dm-card, #1e293b);
  border-color: var(--dm-border, #475569);
  color: var(--dm-text-100, #f1f5f9);
}

.dark-mode .step-navigation .btn-outline:hover,
[data-theme="dark"] .step-navigation .btn-outline:hover {
  background: var(--dm-bg-200, #334155);
  border-color: var(--dm-border, #475569);
}

.dark-mode .step-navigation .btn-primary,
[data-theme="dark"] .step-navigation .btn-primary {
  background: var(--dm-primary-100, #3b82f6);
}

.dark-mode .step-navigation .btn-primary:hover,
[data-theme="dark"] .step-navigation .btn-primary:hover {
  background: var(--dm-primary-200, #2563eb);
}

/* ========== セーフエリア対応（ノッチ付きデバイス） ========== */
@supports (padding: env(safe-area-inset-bottom)) {
  .bottom-sheet-content {
    padding-bottom: env(safe-area-inset-bottom);
  }

  .bottom-sheet-body {
    padding-bottom: calc(20px + env(safe-area-inset-bottom));
  }
}

/* ========== アニメーション無効化（アクセシビリティ） ========== */
@media (prefers-reduced-motion: reduce) {
  .bottom-sheet,
  .bottom-sheet-content,
  .form-step,
  .step-indicator .step,
  .step-navigation .btn {
    animation: none !important;
    transition: none !important;
  }
}