/* ============================================
   Image Studio（Pro）モック
   左固定300px / 中央生成エリア / 最下部固定プロンプト
   ============================================ */

.studio-app {
  --studio-footer-clearance: 110px;
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 0;
  overflow: hidden;
}
.studio-app .header-inner {
  flex-wrap: wrap;
}

/* 画像スタジオ：1行ステータス＋コンパクト操作 */
.studio-status-section.card {
  margin: 8px 12px 0;
  padding: 0;
}
.studio-status-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px 12px;
  font-size: 12px;
  flex-wrap: wrap;
}
.studio-status-hint {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted);
  min-width: 0;
}
.studio-quick-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 0 12px 8px;
}
.studio-quick-actions .btn-compact {
  padding: 0.35rem 0.6rem;
  font-size: 0.75rem;
}
.studio-back-link {
  text-decoration: none;
  color: inherit;
}
.badge-pro {
  background: var(--accent);
  color: #1a1a2e;
}

/* レイアウト：左320px固定 + 右側最大幅 */
.studio-layout {
  flex: 1;
  display: flex;
  min-height: 0;
  align-items: stretch;
}

/* 左固定カラム 320px */
.studio-sidebar {
  width: 320px;
  min-width: 320px;
  flex-shrink: 0;
  background: rgba(15, 23, 42, 0.5);
  border-right: 1px solid var(--card-border);
  overflow-y: auto;
}
.left-panel {
  position: sticky;
  top: 0;
  height: calc(100vh - var(--studio-footer-clearance));
  overflow-y: auto;
  padding-bottom: env(safe-area-inset-bottom);
}
.studio-sidebar-inner {
  padding: 1rem;
  padding-bottom: calc(1rem + var(--studio-footer-clearance));
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* 画像サイズ：向きトグル */
.studio-orient-toggle {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.35rem;
}
.studio-orient-btn {
  flex: 1;
  padding: 0.4rem 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.studio-orient-btn:hover {
  color: var(--text);
  border-color: rgba(99, 102, 241, 0.4);
}
.studio-orient-btn.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

/* 画像サイズ：比率ボタン群 */
.studio-ratio-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.35rem;
}
.studio-ratio-btn {
  padding: 0.3rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.studio-ratio-btn:hover {
  color: var(--text);
  border-color: rgba(99, 102, 241, 0.4);
}
.studio-ratio-btn.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.studio-size-input {
  max-width: 90px;
}
.studio-checkbox {
  margin-right: 0.35rem;
  accent-color: var(--accent);
}
.studio-form-title,
.studio-form .studio-form-title {
  margin: 0 0 0.75rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.studio-row {
  margin-bottom: 0.75rem;
}
.studio-model-hint {
  margin: -0.25rem 0 0.75rem 0;
  padding: 0.65rem 0.75rem;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--text);
  background: rgba(251, 191, 36, 0.12);
  border: 1px solid rgba(251, 191, 36, 0.4);
  border-radius: var(--radius-nested);
}
.studio-model-hint-sub {
  color: var(--text-muted);
  font-size: 0.8rem;
}
.studio-model-status-inline {
  margin: -0.25rem 0 0.75rem 0;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--text-muted);
  min-height: 1.2em;
}
.studio-model-status-inline.error {
  color: #ff6b6b;
}
.studio-model-status-inline.success {
  color: #4cd964;
}
.studio-model-status-inline.info {
  color: #8fb3ff;
}
.studio-row-inline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.studio-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}
.studio-row-inline .studio-label {
  margin-bottom: 0;
  min-width: 3.5rem;
}
.studio-select {
  width: 100%;
  padding: 0.45rem 0.6rem;
  font-size: 0.9rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  color: var(--text);
}
.studio-select:focus {
  outline: none;
  border-color: var(--accent);
}
.studio-select-narrow {
  max-width: 100px;
}
.studio-count-cost {
  margin-left: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted, #94a3b8);
}
.studio-input {
  padding: 0.45rem 0.6rem;
  font-size: 0.9rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  color: var(--text);
  width: 100%;
  max-width: 120px;
}
.studio-input-narrow {
  max-width: 70px;
}
.studio-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* クイック調整（プロンプト末尾トークンの入れ替え） */
.studio-quick-section .studio-quick-hint {
  font-size: 0.78rem;
  color: var(--text-muted, #94a3b8);
  margin: 0 0 0.65rem;
  line-height: 1.35;
}
.studio-quick-section .studio-row {
  margin-bottom: 0.45rem;
}
.studio-quick-section .studio-row:last-child {
  margin-bottom: 0;
}

/* LoRA管理 */
.studio-lora-section .studio-form-title {
  margin-bottom: 0.5rem;
}
.studio-lora-add {
  margin-bottom: 0.75rem;
}
.studio-lora-slots {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.studio-lora-slot {
  display: grid;
  grid-template-columns: auto auto 1fr 52px;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.85rem;
}
.studio-lora-slot input[type="checkbox"] {
  accent-color: var(--accent);
}
.studio-lora-slot-label {
  color: var(--text-muted);
  white-space: nowrap;
}
.studio-lora-slot-select {
  min-width: 0;
}
.studio-lora-weight-slider {
  width: 52px;
  min-width: 52px;
  height: 0.5rem;
  accent-color: var(--accent);
}
.studio-perf-btns {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.35rem;
}
.studio-perf-btn {
  flex: 1;
  padding: 0.4rem 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.studio-perf-btn:hover {
  color: var(--text);
  border-color: rgba(99, 102, 241, 0.4);
}
.studio-perf-btn.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.studio-lora-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.studio-lora-item {
  padding: 0.5rem 0.6rem;
  font-size: 0.85rem;
  background: rgba(15, 23, 42, 0.5);
  border-radius: var(--radius-nested);
  border: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.studio-lora-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.studio-lora-item-name {
  font-weight: 600;
  color: var(--text);
  flex: 1;
  min-width: 0;
}
.studio-lora-item-toggle {
  flex-shrink: 0;
  width: 2.5rem;
  height: 1.25rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.3);
  border: 1px solid var(--card-border);
  cursor: pointer;
  position: relative;
  transition: background 0.2s, border-color 0.2s;
}
.studio-lora-item-toggle[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
}
.studio-lora-item-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: calc(1.25rem - 6px);
  height: calc(1.25rem - 6px);
  border-radius: 50%;
  background: var(--text);
  transition: transform 0.2s;
}
.studio-lora-item-toggle[aria-pressed="true"]::after {
  transform: translateX(1.1rem);
}
.studio-lora-item-strength {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.studio-lora-item-strength label {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 3rem;
}
.studio-lora-item-strength input[type="range"] {
  flex: 1;
  min-width: 0;
  accent-color: var(--accent);
}
.studio-lora-item-trigger {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
  word-break: break-word;
}
.studio-lora-remove {
  padding: 0.15rem 0.4rem;
  font-size: 0.7rem;
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 4px;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
}
.studio-lora-remove:hover {
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.5);
}

.studio-actions {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(99, 102, 241, 0.2);
}
.studio-generate-btn {
  width: 100%;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
}

/* 中央生成エリア：右側最大幅・生成結果のみスクロール */
.studio-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0.65rem 0.85rem 0.5rem;
}
.studio-main-inner {
  max-width: 100%;
  width: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}
.studio-main-title {
  margin: 0 0 0.5rem 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
}

.results-container {
  height: calc(100vh - 140px);
  max-height: calc(100vh - 140px);
  min-height: 200px;
  overflow-y: auto;
  flex: 1 1 auto;
  padding-bottom: 0.5rem;
}
.studio-section-title {
  margin: 0 0 0.75rem 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}
.studio-latest-section {
  flex-shrink: 0;
  margin-bottom: 0.75rem;
}
/* 生成結果：横スクロール（左＝古い・右＝新しい想定で比較しやすい） */
.studio-latest-section .results-grid {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: visible;
  gap: 16px;
  padding: 4px 4px 16px 4px;
  width: 100%;
  min-height: 100px;
  align-items: flex-start;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
}
.studio-latest-section .results-grid .result-card {
  flex: 0 0 auto;
  width: min(280px, 82vw);
  scroll-snap-align: start;
}
.studio-latest-section .results-grid .studio-results-empty {
  flex: 1 0 100%;
  min-width: 100%;
  grid-column: unset;
}
/* 将来ほか画面でグリッド使う場合用の汎用クラス */
.results-grid--grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  padding: 4px 0 16px 0;
  width: 100%;
  min-height: 100px;
  align-items: start;
}
.result-card {
  background: #1e293b;
  border-radius: 12px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--card-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.result-card:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.result-card img {
  width: 100%;
  height: auto;
  max-height: 512px;
  object-fit: contain;
  border-radius: 8px;
  cursor: pointer;
  display: block;
}
.studio-results-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 2.5rem 1rem;
  font-size: 0.95rem;
  margin: 0;
}
.studio-actions-generate {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.studio-smart-generate-btn {
  font-size: 0.88rem;
}
.studio-main-preview,
.result-container {
  width: 100%;
  margin-bottom: 0.75rem;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  background: rgba(15, 23, 42, 0.55);
  min-height: 280px;
  max-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.studio-main-preview-image,
.result-image {
  width: 100%;
  max-width: 512px;
  max-height: min(80vh, 720px);
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}
.studio-preview-slot-img {
  max-width: 512px;
  width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
  display: block;
}
.studio-count-fixed {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.studio-main-preview-empty {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.studio-latest-block {
  width: 100%;
}
.studio-history-section {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
/* 生成履歴：横スクロール（各ブロック＝1回分の4枚グリッド） */
.studio-preview-history.history-row {
  display: flex;
  flex-direction: row;
  overflow-x: auto;
  gap: 12px;
  flex-wrap: nowrap;
  align-items: flex-start;
  padding-bottom: 8px;
  margin-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-gutter: stable;
}
.studio-preview-history.history-row .studio-preview-block {
  flex: 0 0 auto;
  width: min(92vw, 560px);
  max-width: 92vw;
}
.studio-preview-block {
  width: 100%;
}
.studio-preview-block .studio-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  justify-items: center;
  gap: clamp(0.5rem, 1.2vw, 1rem);
  width: 100%;
}
/* 複数枚は 1 枚ずつ連続生成（batch なし）— スロットは最大 6 まで表示 */
.studio-preview-primary {
  margin-bottom: 0;
}
.studio-preview-slot {
  aspect-ratio: 2 / 3;
  width: 100%;
  min-height: clamp(160px, 24vw, 420px);
  min-width: 0;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.studio-preview-slot:hover,
.studio-preview-slot:focus {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.12);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
  outline: none;
}
.studio-preview-placeholder {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-muted);
  opacity: 0.6;
}
.studio-mock-note {
  margin: 0 0 0.25rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}
#history-section {
  display: none !important;
}

.studio-seed-row .studio-seed-input-wrap {
  display: flex;
  flex: 1;
  min-width: 0;
  gap: 8px;
  align-items: center;
}
.studio-seed-copy-btn {
  flex-shrink: 0;
  padding: 0.35rem 0.55rem;
  font-size: 0.78rem;
  white-space: nowrap;
}

/* クリック拡大モーダル */
.image-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  justify-content: center;
  align-items: center;
}
.image-modal img#modalImage {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}
.image-modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  color: #fff;
  user-select: none;
  z-index: 10001;
}
.image-modal-close:hover {
  opacity: 0.88;
}

.studio-side-info {
  margin: 0.5rem 0 0.35rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-nested);
  background: rgba(15, 23, 42, 0.45);
}
.studio-side-info-title {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: #c7d2fe;
}
.studio-side-info-text {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--text-muted);
}
.studio-side-info-text:last-child {
  margin-bottom: 0;
}

/* 最下部固定プロンプトエリア */
.studio-footer {
  position: sticky;
  bottom: 0;
  background: rgba(26, 26, 46, 0.98);
  border-top: 1px solid var(--card-border);
  padding: 0.75rem 1rem;
  z-index: 100;
}
.studio-footer-inner {
  max-width: min(100%, 1680px);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1rem;
}
.studio-prompt-block {
  flex: 1;
  min-width: 200px;
}
.studio-prompt-label {
  margin: 0 0 0.35rem 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* フッター: プロンプトをタグ単位で削除 */
.prompt-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
  min-height: 0;
  background: transparent;
  border-radius: 8px;
}
.prompt-tags:empty {
  display: none;
}

/* ドロップ確定時のひと押しフィードバック */
#studio-prompt-tags.tag-move-done {
  animation: stackpromptTagBarFlash 0.2s ease;
}
@keyframes stackpromptTagBarFlash {
  from {
    background-color: rgba(51, 65, 85, 0.55);
  }
  to {
    background-color: transparent;
  }
}

body.stackprompt-prompt-tags-dnd {
  cursor: grabbing !important;
}

.prompt-tag {
  position: relative;
  z-index: 0;
  background: #1e293b;
  color: #fff;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.25);
  cursor: grab;
  user-select: none;
  transition: transform 0.15s ease, opacity 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease, filter 0.15s ease;
}

/* ON: カテゴリ色を活かして軽く浮かせる（無効・ドラッグ中は別ルール） */
.prompt-tag:not(.disabled):not(.dragging) {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.07) inset,
    0 2px 10px rgba(0, 0, 0, 0.22);
}
.prompt-tag:active {
  cursor: grabbing;
}

/* タグカテゴリ（理解しやすさ） */
.prompt-tag.tag-appearance {
  background: #7c3aed;
  border-color: rgba(196, 181, 253, 0.45);
}
.prompt-tag.tag-body {
  background: #dc2626;
  border-color: rgba(252, 165, 165, 0.45);
}
.prompt-tag.tag-composition {
  background: #2563eb;
  border-color: rgba(147, 197, 253, 0.45);
}
.prompt-tag.tag-quality {
  background: #16a34a;
  border-color: rgba(134, 239, 172, 0.4);
}
.prompt-tag.tag-light {
  background: #f59e0b;
  border-color: rgba(253, 230, 138, 0.55);
  color: #fff;
}
.prompt-tag.tag-other {
  background: #475569;
  border-color: rgba(148, 163, 184, 0.4);
}

/* OFF: コメント化タグ（生成から除外）。DnD の ::after と被らないよう斜線は .prompt-tag-text 側 */
.prompt-tag.disabled {
  opacity: 0.35;
  filter: grayscale(0.8);
  box-shadow: none;
}

.prompt-tag.disabled .prompt-tag-text {
  position: relative;
}

.prompt-tag.disabled .prompt-tag-text::after {
  content: "";
  position: absolute;
  left: -3px;
  right: -3px;
  top: 50%;
  height: 2px;
  margin-top: -1px;
  background: rgba(255, 255, 255, 0.32);
  transform: rotate(-8deg);
  pointer-events: none;
  border-radius: 1px;
}

.prompt-tag.dragging {
  opacity: 0.6;
  transform: scale(1.05);
  z-index: 10;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}
/* 挿入位置: タグ外側の縦ライン（直感寄り） */
.prompt-tag.drop-target-before,
.prompt-tag.drop-target-after {
  z-index: 2;
}
.prompt-tag.drop-target-before::before,
.prompt-tag.drop-target-after::after {
  content: "";
  position: absolute;
  top: -4px;
  bottom: -4px;
  width: 3px;
  background: #60a5fa;
  border-radius: 2px;
  pointer-events: none;
}
.prompt-tag.drop-target-before::before {
  left: -5px;
}
.prompt-tag.drop-target-after::after {
  right: -5px;
}
/* 縦長タグ: 挿入ラインを上／下に（折り返し行でも分かりやすく） */
.prompt-tag.drop-line-vertical.drop-target-before::before {
  left: 0;
  right: 0;
  top: -5px;
  bottom: auto;
  width: auto;
  height: 3px;
}
.prompt-tag.drop-line-vertical.drop-target-after::after {
  left: 0;
  right: 0;
  top: auto;
  bottom: -5px;
  width: auto;
  height: 3px;
}
.prompt-tag-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: min(100%, 28rem);
}
.prompt-tag button {
  flex-shrink: 0;
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  user-select: none;
  padding: 0 2px;
  line-height: 1;
  font-size: 14px;
  border-radius: 4px;
}
.prompt-tag button:hover {
  color: #f1f5f9;
}
.prompt-tag button:focus-visible {
  outline: 2px solid rgba(99, 102, 241, 0.6);
  outline-offset: 1px;
}

.studio-final-prompt {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.5;
  word-break: break-word;
  width: 100%;
  min-height: 5rem;
  max-height: 10rem;
  overflow-y: auto;
  padding: 0.5rem 0.65rem;
  box-sizing: border-box;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  background: rgba(15, 23, 42, 0.65);
  resize: vertical;
  font-family: inherit;
}
.studio-final-prompt:focus {
  outline: none;
  border-color: #6366f1;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}
.studio-footer-actions {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.studio-footer-actions.regen-bar {
  position: sticky;
  bottom: 0;
  z-index: 120;
  padding-top: 0.4rem;
  margin-top: 0.25rem;
  background: linear-gradient(to top, rgba(26, 26, 46, 0.99) 40%, rgba(26, 26, 46, 0.92) 100%);
}
.studio-footer-btn {
  white-space: nowrap;
}
.studio-footer-spacer {
  height: 0;
  display: none;
  flex-shrink: 0;
}

/* 生成中オーバーレイ */
.studio-generating-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
}
.studio-generating-overlay[hidden] {
  display: none !important;
}
.studio-generating-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 1rem;
}
.studio-generating-progress {
  width: 200px;
  height: 6px;
  background: rgba(255,255,255,0.2);
  border-radius: 3px;
  overflow: hidden;
}
.studio-generating-cancel {
  margin-top: 1rem;
}
.studio-generating-progress::after {
  content: '';
  display: block;
  height: 100%;
  width: 40%;
  background: var(--accent);
  animation: studio-progress-pulse 1s ease-in-out infinite;
}
@keyframes studio-progress-pulse {
  0%, 100% { transform: translateX(-100%); }
  50% { transform: translateX(150%); }
}

/* 右下スクロールナビ */
.scroll-nav {
  position: fixed;
  right: 24px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 999;
}
.scroll-nav-btn {
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  background: rgba(26, 26, 46, 0.95);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-nested);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: background 0.2s, border-color 0.2s;
}
.scroll-nav-btn:hover {
  background: rgba(99, 102, 241, 0.25);
  border-color: var(--accent);
}

/* 初回ガイド（折りたたみ） */
.guide-content {
  display: none;
  padding: 12px 10px 4px;
  border-top: 1px solid var(--card-border, rgba(255, 255, 255, 0.08));
}

.guide-container.open .guide-content {
  display: block;
}

.guide-header {
  cursor: pointer;
  padding: 10px;
  background: #1e293b;
  border-radius: 8px;
  margin: 0;
  user-select: none;
}

.guide-container.open .guide-header {
  border-radius: 8px 8px 0 0;
}

@media (max-width: 768px) {
  .studio-layout {
    flex-direction: column;
  }
  .studio-sidebar,
  .left-panel {
    width: 100%;
    min-width: 0;
    max-height: 50vh;
    height: auto;
    position: relative;
  }
  .studio-preview-block .studio-preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .studio-preview-slot {
    min-height: clamp(100px, 28vw, 200px);
  }
  .results-container {
    height: calc(100vh - 160px);
    max-height: calc(100vh - 160px);
    min-height: 180px;
  }
  .scroll-nav {
    right: 12px;
    bottom: 100px;
  }
}