/* ===================================================
   NanobananaPro2 — Panels, Forms, Chips, Drop Zones
   =================================================== */

/* ─── Layout ─── */
.app-layout { display: flex; flex-direction: column; min-height: 100vh; }
.main-content {
  position: relative; z-index: 1;
  padding: 12px;
  min-height: calc(100vh - 52px);
}
.panel-layout {
  display: grid; grid-template-columns: 360px 1fr;
  gap: 12px; height: calc(100vh - 52px - 24px);
}

/* ─── Panels ─── */
.panel {
  background: rgba(255,255,255,.88); backdrop-filter: blur(16px);
  border: 1px solid rgba(255,94,145,.06);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  overflow: hidden; min-height: 0;
}
.panel-controls { position: relative; display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.panel-result { overflow-y: auto; }
.panel-scroll {
  flex: 1; overflow-y: auto; padding: 12px;
  display: flex; flex-direction: column; gap: 10px;
  scrollbar-width: thin; scrollbar-color: var(--surface-300) transparent;
}
.panel-scroll::-webkit-scrollbar { width: 5px; }
.panel-scroll::-webkit-scrollbar-thumb { background: var(--surface-300); border-radius: 3px; }

/* ─── Inpaint Sub-tabs ─── */
.inpaint-subtabs {
  display: grid; grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid rgba(255,94,145,.08);
  flex-shrink: 0;
}
.inpaint-subtab {
  display: flex; align-items: center; justify-content: center; gap: 4px;
  padding: 8px 6px;
  background: transparent; border: none; border-bottom: 2px solid transparent;
  color: var(--surface-500); font-family: var(--font);
  font-size: .72rem; font-weight: 700; cursor: pointer;
  transition: all var(--tr-fast);
}
.inpaint-subtab:first-child { border-right: 1px solid rgba(255,94,145,.06); }
.inpaint-subtab:hover { color: #444444; background: #fff0f5; }
.inpaint-subtab.active {
  color: var(--primary); border-bottom-color: var(--primary) !important;
  background: rgba(255,94,145,.06);
  font-weight: 700;
}

/* ─── Mode Tabs ─── */
.mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid rgba(255,94,145,.08);
  flex-shrink: 0;
}
.mode-tab {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 7px 6px;
  background: transparent; border: none;
  border-bottom: 2px solid transparent;
  color: var(--surface-500); font-family: var(--font);
  font-size: .7rem; font-weight: 600; cursor: pointer;
  transition: all var(--tr-fast); white-space: nowrap;
  border-right: 1px solid rgba(255,94,145,.06);
}
.mode-tab:last-child,
.mode-tab:nth-child(3) { border-right: none; }
/* 1行目の下に区切り線 */
.mode-tab:nth-child(-n+3) { border-bottom: 1px solid rgba(255,94,145,.08); }
.mode-tab:hover { color: #444444; background: #fff0f5; }
.mode-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary) !important;
  background: rgba(255,94,145,.06);
  font-weight: 700;
}

/* ─── Mode Panels ─── */
.tab-content { flex: 1; display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.mode-panel { display: none; flex-direction: column; flex: 1; min-height: 0; overflow: hidden; }
.mode-panel.active { display: flex; }

/* ─── Sections ─── */
.section { display: flex; flex-direction: column; gap: 6px; }
.section-title {
  display: flex; align-items: center; gap: 6px;
  font-size: .75rem; font-weight: 700; color: var(--surface-700);
  text-transform: uppercase; letter-spacing: .05em;
}
.neg-details summary { list-style: none; }
.neg-details summary::-webkit-details-marker { display: none; }
.neg-details summary::after { content: ' ▸'; font-size: .7rem; }
.neg-details[open] summary::after { content: ' ▾'; }

/* ─── Form Elements ─── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 8px 12px;
  background: var(--surface-100); border: 1.5px solid var(--surface-300);
  border-radius: var(--radius-md); color: var(--surface-1000);
  font-family: var(--font); font-size: .9rem;
  transition: all var(--tr-fast); outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--banana-400); box-shadow: 0 0 0 3px rgba(255,94,145,.12);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--surface-500); }
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3 5L6 8L9 5' stroke='%238888a4' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
  padding-right: 32px;
}
.form-select option { background: var(--surface-100); }
.form-textarea { resize: vertical; min-height: 60px; line-height: 1.6; }
.textarea-footer { display: flex; justify-content: flex-end; }
.char-count { font-size: .7rem; color: var(--surface-500); }
.option-hint {
  font-size: .7rem; color: var(--surface-500); line-height: 1.5;
  background: rgba(255,94,145,.04); border: 1px solid rgba(255,94,145,.08);
  border-radius: var(--radius-sm); padding: 6px 8px;
}
.meta-label {
  font-size: .62rem; font-weight: 600; color: var(--surface-500);
  text-transform: uppercase; letter-spacing: .06em;
}

/* ─── Chips ─── */
.chip-group { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  padding: 4px 14px; background: #ffffff;
  border: 1.5px solid #d0d0d0; border-radius: var(--radius-full);
  color: #555555; font-family: var(--font);
  font-size: .78rem; font-weight: 600; cursor: pointer;
  transition: all var(--tr-fast);
}
.chip:hover { border-color: var(--primary); background: #fff0f5; color: #333333; }
.chip.active {
  background: var(--primary); border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(255,94,145,.3);
}
.chip-multi { gap: 6px; }

/* ─── Aspect Ratio Grid ─── */
.aspect-ratio-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.aspect-btn {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 8px 4px; background: #ffffff;
  border: 1.5px solid #d0d0d0; border-radius: var(--radius-md);
  cursor: pointer; transition: all var(--tr-fast);
}
.aspect-btn:hover { border-color: var(--primary); background: #fff0f5; }
.aspect-btn.active { background: var(--primary); border-color: var(--primary); box-shadow: 0 2px 8px rgba(255,94,145,.3); }
.aspect-preview {
  border: 1.5px solid #aaaaaa; border-radius: 2px;
  transition: border-color var(--tr-fast);
}
.aspect-btn.active .aspect-preview { border-color: rgba(255,255,255,.7); background: rgba(255,255,255,.2); }
.aspect-btn span { font-size: .62rem; font-weight: 600; color: #666666; }
.aspect-btn.active span { color: #ffffff; }

/* ─── Drop Zone ─── */
.drop-zone {
  position: relative; border: 2px dashed var(--surface-300);
  border-radius: var(--radius-md); padding: 14px 12px;
  text-align: center; cursor: pointer; transition: all var(--tr); font-size: .82rem;
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--banana-400); background: rgba(255,94,145,.04);
}
.drop-zone-content {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.drop-zone-content p { font-size: .82rem; font-weight: 500; color: var(--surface-700); }
.drop-zone-sm { padding: 10px 8px; font-size: .78rem; }

/* ─── Image Preview Grid ─── */
.image-preview-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.image-preview-item {
  position: relative; aspect-ratio: 1; border-radius: var(--radius-md);
  overflow: hidden; border: 1px solid var(--surface-300);
  animation: scaleIn var(--tr-spring) ease;
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(.85); }
  to   { opacity: 1; transform: scale(1); }
}
.image-preview-item img { width: 100%; height: 100%; object-fit: cover; }
.image-preview-remove {
  position: absolute; top: 4px; right: 4px; width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.7); border: none; border-radius: 50%;
  color: white; font-size: .7rem; cursor: pointer;
  opacity: 0; transition: opacity var(--tr-fast);
}
.image-preview-item:hover .image-preview-remove { opacity: 1; }
.char-single-preview { display: flex; flex-wrap: wrap; gap: 6px; }
.char-single-preview .image-preview-item { width: 80px; height: 80px; flex-shrink: 0; }

/* ─── Reference Image Card (with inline controls) ─── */
.ref-img-card {
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-300);
  overflow: hidden;
  background: var(--surface-100);
  animation: scaleIn var(--tr-spring) ease;
  display: flex; flex-direction: column;
}
.ref-img-thumb {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}
.ref-img-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
.ref-remove-btn {
  position: absolute; top: 4px; right: 4px; width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.7); border: none; border-radius: 50%;
  color: white; font-size: .7rem; cursor: pointer;
  opacity: 0; transition: opacity var(--tr-fast);
}
.ref-img-thumb:hover .ref-remove-btn { opacity: 1; }
.ref-img-controls {
  padding: 6px 8px;
  background: var(--surface-100);
  border-top: 1px solid var(--surface-200);
  display: flex; flex-direction: column; gap: 5px;
}
.ref-img-controls .ref-type-select {
  width: 100%;
  font-size: 0.72rem !important;
  padding: 3px 6px !important;
  height: auto !important;
}
.ref-strength-row {
  display: flex; align-items: center; gap: 6px;
}
.ref-strength-label {
  font-size: 0.7rem; font-weight: 700;
  color: var(--banana-400); white-space: nowrap; min-width: 32px;
}



/* ─── Character Slot Cards ─── */
.char-slot {
  border: 1px solid var(--surface-300);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  overflow: hidden;
  background: var(--surface-100);
  transition: border-color var(--tr-fast);
}
.char-slot.has-image { border-color: rgba(255,94,145,.25); }

.char-slot-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px;
  background: rgba(255,94,145,.06);
  border-bottom: 1px solid var(--surface-200);
}
.char-slot-label {
  font-size: 0.75rem; font-weight: 700; color: var(--banana-400);
}
.char-slot-remove {
  font-size: 0.68rem; color: var(--surface-500);
  background: none; border: 1px solid var(--surface-300);
  border-radius: var(--radius-sm); padding: 1px 7px; cursor: pointer;
  transition: all var(--tr-fast);
}
.char-slot-remove:hover { color: #FF5630; border-color: #FF5630; }

.char-slot-body {
  display: flex; gap: 8px; padding: 8px;
}
.char-slot-thumb-wrap {
  width: 72px; height: 72px; flex-shrink: 0;
  border-radius: var(--radius-sm); overflow: hidden;
  border: 1px solid var(--surface-200);
}
.char-slot-thumb {
  width: 100%; height: 100%; object-fit: cover;
}
.char-slot-controls {
  flex: 1; display: flex; flex-direction: column; gap: 6px; min-width: 0;
}
.char-slot-note {
  font-size: 0.72rem !important;
  padding: 4px 6px !important;
  min-height: 36px !important;
  resize: none;
}
.char-slot-row {
  display: flex; gap: 6px; align-items: center;
}
.char-pos-grid {
  display: grid; grid-template-columns: repeat(3, 22px);
  grid-template-rows: repeat(3, 22px); gap: 2px;
  flex-shrink: 0;
}
.char-pos-grid .pos-btn {
  width: 22px; height: 22px; font-size: 0.6rem; padding: 0;
}
.char-size-select {
  flex: 1; font-size: 0.72rem !important;
  padding: 3px 6px !important; height: auto !important;
}

/* 空スロット */
.char-slot-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 14px 8px; cursor: pointer; border-radius: var(--radius-md);
  border: 1.5px dashed var(--surface-300);
  transition: all var(--tr-fast); gap: 2px;
}
.char-slot-empty:hover {
  border-color: var(--banana-400); background: rgba(255,94,145,.04);
}
.char-slot-empty-label { font-size: 0.78rem; font-weight: 700; color: var(--banana-400); }
.char-slot-hint { font-size: 0.65rem; color: var(--surface-400); }

/* ─── Generate Area ─── */
.generate-area {
  padding: 12px 16px; border-top: 1px solid rgba(255,94,145,.06);
  background: rgba(247,249,250,1); display: flex; flex-direction: column; gap: 8px;
  flex-shrink: 0;
}
.gen-count-bar { display: flex; align-items: center; gap: 10px; }
.gen-count-label { font-size: .72rem; font-weight: 700; color: var(--surface-600); white-space: nowrap; }
.gen-count-bar .chip { padding: 3px 10px; font-size: .75rem; }

/* ─── Prompt Copy Bar ─── */
.prompt-copy-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 4px 0;
}
.prompt-copy-label {
  font-size: 0.7rem; font-weight: 600; color: var(--surface-500);
}
.badge-copy {
  font-size: 0.68rem; font-weight: 700;
  padding: 2px 10px; border-radius: var(--radius-full);
  background: rgba(255,94,145,.1); border: 1px solid rgba(255,94,145,.3);
  color: var(--banana-400); cursor: pointer;
  transition: all var(--tr-fast);
  user-select: none;
}
.badge-copy:hover {
  background: rgba(255,94,145,.2); border-color: var(--banana-400);
  transform: scale(1.05);
}
.badge-copy:active { transform: scale(.97); }
.badge-copy.badge-neg {
  background: rgba(255,86,48,.08); border-color: rgba(255,86,48,.3);
  color: #FF7354;
}
.badge-copy.badge-neg:hover {
  background: rgba(255,86,48,.15); border-color: #FF5630;
}

.btn-generate {
  position: relative; width: 100%; padding: 14px 20px; border: none;
  border-radius: var(--radius-md); background: var(--gradient-premium);
  color: #ffffff; font-family: var(--font);
  font-size: 1rem; font-weight: 700; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  overflow: hidden; transition: all var(--tr);
  box-shadow: 0 4px 20px rgba(255,94,145,.2);
}
.btn-generate:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(255,94,145,.3); }
.btn-generate:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-generate-bg {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.15), transparent);
  transform: translateX(-100%); animation: shimmer 3s infinite;
}
@keyframes shimmer { 100% { transform: translateX(100%); } }
.btn-cancel {
  width: 100%; padding: 10px; margin-top: 6px;
  border: 1.5px solid var(--accent-red); border-radius: var(--radius-md);
  background: rgba(255,86,48,.08); color: var(--accent-red);
  font-family: var(--font); font-size: .85rem; font-weight: 600;
  cursor: pointer; transition: all var(--tr-fast);
}
.btn-cancel:hover { background: rgba(255,86,48,.18); }

/* ─── Cost Estimate Bar ─── */
.cost-estimate {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 4px; padding: 7px 10px; margin-bottom: 8px;
  background: rgba(255,94,145,.04); border: 1px solid rgba(255,94,145,.1);
  border-radius: var(--radius-md); font-size: .68rem; line-height: 1.5;
  min-height: 0; transition: all .3s ease;
}
.cost-estimate:empty { display: none; }
.cost-left { display: flex; align-items: center; gap: 6px; color: var(--surface-600); }
.cost-tokens { font-weight: 600; color: var(--surface-700); }
.cost-right { display: flex; align-items: center; gap: 8px; }
.cost-usd { font-weight: 700; color: var(--banana-300); font-size: .75rem; }
.cost-jpy { color: var(--surface-500); }

/* ─── Position Grid (Character mode) ─── */
.position-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; max-width: 160px; }
.pos-btn {
  padding: 12px; background: #ffffff;
  border: 1.5px solid #d0d0d0; border-radius: var(--radius-md);
  cursor: pointer; font-size: 1rem; transition: all var(--tr-fast);
  color: #666666; display: flex; align-items: center; justify-content: center;
}
.pos-btn:hover { border-color: var(--primary); background: #fff0f5; color: #333333; }
.pos-btn.active { background: var(--primary); border-color: var(--primary); color: #ffffff; box-shadow: 0 2px 8px rgba(255,94,145,.3); }

/* ─── Char preserve group ─── */
.char-preserve-group { display: flex; gap: 6px; }

/* ─── Auto-save UI ─── */
.autosave-status-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px; margin-bottom: 8px;
  background: rgba(54,179,126,.06); border: 1px solid rgba(54,179,126,.2);
  border-radius: var(--radius-sm); font-size: .7rem; color: var(--accent-green);
}
.autosave-status-bar span { margin-left: auto; color: var(--surface-500); }

/* ─── Chat Bubbles ─── */
.chat-msg { display: flex; flex-direction: column; gap: 4px; }
.chat-msg-user { align-items: flex-end; }
.chat-msg-model { align-items: flex-start; }
.chat-msg-label { font-size: .6rem; font-weight: 700; color: var(--surface-500); text-transform: uppercase; }
.chat-bubble {
  max-width: 85%; padding: 8px 14px; border-radius: var(--radius-md);
  font-size: .85rem; line-height: 1.6; word-break: break-all;
}
.chat-msg-user .chat-bubble { background: rgba(255,94,145,.12); color: var(--surface-900); }
.chat-msg-model .chat-bubble { background: var(--surface-150); color: var(--surface-800); }
.chat-img { max-width: 200px; }
.chat-img img { width: 100%; border-radius: var(--radius-md); border: 1px solid var(--surface-300); }
.chat-attach-thumb {
  position: relative; width: 40px; height: 40px; border-radius: 6px;
  overflow: hidden; border: 1px solid var(--surface-300);
}
.chat-attach-thumb img { width: 100%; height: 100%; object-fit: cover; }
.chat-attach-thumb-remove {
  position: absolute; top: -2px; right: -2px; width: 16px; height: 16px;
  background: rgba(0,0,0,.7); border: none; border-radius: 50%;
  color: white; font-size: .5rem; cursor: pointer; display: flex;
  align-items: center; justify-content: center;
}

/* ─── Thumbnail Text Card ─── */
.thumb-text-card {
  padding: 10px; margin-bottom: 6px;
  background: var(--surface-100); border: 1px solid var(--surface-200);
  border-radius: var(--radius-md); display: flex; flex-direction: column; gap: 6px;
}
.thumb-text-card-header { display: flex; justify-content: space-between; align-items: center; font-size: .75rem; font-weight: 600; color: var(--surface-600); }
.thumb-text-remove-btn { background: none; border: none; color: var(--surface-500); cursor: pointer; font-size: .8rem; }
.thumb-text-remove-btn:hover { color: var(--accent-red); }
.thumb-text-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.thumb-ref-clear {
  position: absolute; top: 2px; right: 2px; width: 18px; height: 18px;
  background: rgba(0,0,0,.7); border: none; border-radius: 50%;
  color: white; font-size: .6rem; cursor: pointer; display: flex;
  align-items: center; justify-content: center;
}
#thumbCharPreview, #thumbDesignPreview { position: relative; }

/* ─── Thumbnail Layout Grid ─── */
.thumb-layout-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
  max-height: 280px;
  overflow-y: auto;
  padding: 2px;
}
.thumb-layout-btn {
  background: var(--surface-100);
  border: 2px solid transparent;
  border-radius: 5px;
  cursor: pointer;
  padding: 3px;
  text-align: left;
  transition: border-color .15s, transform .1s;
  width: 100%;
  overflow: hidden;
}
.thumb-layout-btn:hover { border-color: var(--banana-500); transform: scale(1.03); }
.thumb-layout-btn.active { border-color: #3b82f6; box-shadow: 0 0 0 2px rgba(59,130,246,.3); }