/* ============================================================
 * アノテーション収集ページ専用スタイル
 *   既存 style.css の CSS 変数 (--color-*, --radius-*, --shadow-*) を継承
 * ============================================================ */

:root {
  --annot-sidebar-w: 320px;
  --tool-bar-h: 96px;
  --color-mask: rgba(255, 82, 82, 0.4);
  --color-rect: #ff5252;
  --color-rect-fill: rgba(255, 82, 82, 0.12);
  --color-poly-line: #ff9b00;
  --color-selected: #00d4ff;
}

[data-theme="dark"] {
  --color-rect: #ff7b72;
  --color-rect-fill: rgba(255, 123, 114, 0.15);
}

/* topbar の現在ページハイライト */
.topbar-nav-link.active {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}
[data-theme="dark"] .topbar-nav-link.active {
  color: var(--color-bg);
}

.topbar-subtitle {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 13px;
  margin-left: 4px;
}

/* ============================================================
 * レイアウト
 * ============================================================ */
.annot-layout {
  display: flex;
  min-height: calc(100vh - var(--topbar-h));
}

.annot-sidebar {
  width: var(--annot-sidebar-w);
  flex-shrink: 0;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  padding: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.annot-main {
  flex: 1;
  min-width: 0;
  padding: 16px 24px 64px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.annot-sidebar-section {
  padding: 12px 16px 16px;
  border-bottom: 1px solid var(--color-border-soft);
}
.annot-sidebar-section:last-child {
  border-bottom: none;
}

.annot-sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.annot-sidebar-title {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
 * 画像リスト
 * ============================================================ */
.image-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 40vh;
  overflow-y: auto;
}

.image-list-empty {
  padding: 16px 12px;
  color: var(--color-text-muted);
  font-size: 13px;
  font-style: italic;
  text-align: center;
}

.image-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s;
  background: var(--color-bg-elev);
  position: relative;
}

.image-item:hover {
  background: var(--color-bg);
  border-color: var(--color-border);
}

.image-item.active {
  background: var(--color-bg);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(9, 105, 218, 0.15);
}

.image-thumb {
  width: 48px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background: var(--color-border-soft);
}

.image-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.image-name {
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.image-meta {
  font-size: 11px;
  color: var(--color-text-muted);
  display: flex;
  gap: 8px;
}

.annot-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  background: var(--color-accent);
  color: #fff;
  padding: 1px 6px;
  border-radius: 10px;
  line-height: 1.4;
}

.annot-badge.zero {
  background: var(--color-border);
  color: var(--color-text-muted);
}

.image-delete {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 4px 6px;
  font-size: 14px;
  line-height: 1;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity 0.1s, color 0.1s;
}

.image-item:hover .image-delete {
  opacity: 1;
}

.image-delete:hover {
  color: var(--color-danger);
  background: var(--color-bg-alt);
}

/* ============================================================
 * 統計
 * ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}

.stats-cell {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: 8px 4px;
  text-align: center;
}

.stats-num {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
}

.stats-label {
  display: block;
  font-size: 11px;
  color: var(--color-text-muted);
}

.stats-bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stats-empty {
  font-size: 12px;
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
  margin: 0;
}

.stats-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
}

.stats-bar-color {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.stats-bar-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stats-bar-bar {
  height: 6px;
  background: var(--color-border-soft);
  border-radius: 3px;
  overflow: hidden;
  min-width: 60px;
  flex: 1;
}

.stats-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s;
}

.stats-bar-count {
  min-width: 20px;
  text-align: right;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
 * Buttons
 * ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elev);
  color: var(--color-text);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
  transition: background 0.1s, border-color 0.1s, color 0.1s, transform 0.05s;
  white-space: nowrap;
}

.btn:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-text-muted);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
}
[data-theme="dark"] .btn-primary {
  color: var(--color-bg);
}

.btn-secondary {
  background: var(--color-bg-elev);
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-tertiary {
  background: transparent;
  border-color: var(--color-border-soft);
  color: var(--color-text-muted);
}
.btn-tertiary:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn-danger:hover {
  background: #a31a23;
  border-color: #a31a23;
  color: #fff;
}

.btn-sm {
  padding: 4px 8px;
  font-size: 12px;
}

.btn-block {
  display: flex;
  width: 100%;
}

.export-buttons {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.export-buttons .sep {
  margin: 8px 0 4px;
  border: 0;
  border-top: 1px dashed var(--color-border-soft);
}

/* ============================================================
 * 空状態
 * ============================================================ */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-alt);
  margin: 16px 0;
}

.empty-state.dragover {
  background: rgba(9, 105, 218, 0.06);
  border-color: var(--color-accent);
}

.empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.empty-state h2 {
  margin: 0 0 8px;
  font-size: 22px;
}

.empty-state p {
  margin: 4px 0;
  color: var(--color-text-muted);
}
.empty-state .muted {
  font-size: 13px;
  margin-top: 16px;
}

/* ============================================================
 * ツールバー
 * ============================================================ */
.tool-bar {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: calc(var(--topbar-h) + 8px);
  z-index: 50;
}

.tool-bar-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
}

.tool-group {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 4px;
  border-right: 1px solid var(--color-border-soft);
}

.tool-group:last-child {
  border-right: none;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  color: var(--color-text);
  transition: background 0.1s, border-color 0.1s;
}

.tool-btn:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-border);
}

.tool-btn.active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
[data-theme="dark"] .tool-btn.active {
  color: var(--color-bg);
}

.tool-icon {
  font-size: 16px;
  line-height: 1;
}

.tool-label {
  font-size: 12px;
}

.tool-label-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.tool-label-inline select {
  font-family: inherit;
  font-size: 13px;
  padding: 4px 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  max-width: 240px;
}

.brush-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-muted);
}

input[type="range"] {
  vertical-align: middle;
}

.tool-hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--color-text-muted);
  min-height: 16px;
}

/* ============================================================
 * Canvas エリア
 * ============================================================ */
.canvas-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.canvas-stage {
  position: relative;
  width: 100%;
  min-height: 360px;
  max-height: 70vh;
  overflow: auto;
  background:
    repeating-conic-gradient(var(--color-bg-alt) 0% 25%, var(--color-bg-elev) 25% 50%) 0 0/24px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}

.canvas-layer {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

.canvas-image {
  position: relative; /* canvas-stageのサイズを確定させる基準 */
}

.canvas-draw {
  pointer-events: auto;
  cursor: crosshair;
}

.canvas-draw.tool-eraser {
  cursor: pointer;
}

.canvas-draw.tool-none {
  cursor: default;
}

.canvas-meta {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
}

/* ============================================================
 * アノテーションリスト
 * ============================================================ */
.annot-list-section {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
}

.annot-list-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.annot-list-header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.annot-count-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  padding: 1px 8px;
  border-radius: 10px;
}

.annot-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
}

.annot-list-empty {
  grid-column: 1 / -1;
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
  padding: 24px;
  margin: 0;
}

.annot-card {
  display: flex;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  cursor: pointer;
  transition: border-color 0.1s, background 0.1s;
}

.annot-card:hover,
.annot-card.highlighted {
  border-color: var(--color-accent);
  background: var(--color-bg-alt);
}

.annot-card-thumb {
  width: 56px;
  height: 56px;
  background: var(--color-border-soft);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  border: 2px solid currentColor;
  background-size: cover;
  background-position: center;
}

.annot-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.annot-card-type {
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.annot-card-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  font-size: 11px;
}

.annot-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--color-border-soft);
  color: var(--color-text-muted);
  font-size: 11px;
  line-height: 1.5;
}

.annot-tag.tag-mild { background: rgba(26, 127, 55, 0.12); color: var(--color-success); }
.annot-tag.tag-moderate { background: rgba(154, 103, 0, 0.15); color: var(--color-warning); }
.annot-tag.tag-severe { background: rgba(207, 34, 46, 0.12); color: var(--color-danger); }

.annot-card-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-self: stretch;
  justify-content: center;
}

.annot-action-btn {
  background: none;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 2px 6px;
  font-size: 11px;
  color: var(--color-text-muted);
  line-height: 1.3;
}

.annot-action-btn:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.annot-action-btn.danger:hover {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}

/* ============================================================
 * モーダル
 * ============================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal[hidden] {
  display: none !important;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

.modal-dialog {
  position: relative;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  max-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-dialog-sm {
  max-width: 420px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
  margin: 0;
  font-size: 16px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text);
  padding: 0 4px;
}

.modal-body {
  padding: 16px;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.modal-preview {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  padding: 8px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
}

.modal-preview canvas {
  max-width: 120px;
  max-height: 120px;
  border-radius: var(--radius-sm);
  background: #fff;
}

.modal-preview-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.label-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-row label {
  font-size: 13px;
  font-weight: 500;
}

.form-row .req {
  color: var(--color-danger);
}

.form-row select,
.form-row textarea {
  font-family: inherit;
  font-size: 14px;
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text);
}

.form-row textarea {
  resize: vertical;
  min-height: 60px;
}

.form-hint {
  color: var(--color-text-muted);
  font-size: 11px;
}

.radio-group {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.radio-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  cursor: pointer;
  font-size: 13px;
  background: var(--color-bg);
}

.radio-pill input[type="radio"] {
  margin: 0;
}

.radio-pill:has(input:checked) {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

[data-theme="dark"] .radio-pill:has(input:checked) {
  color: var(--color-bg);
}

/* ============================================================
 * トースト
 * ============================================================ */
.toast-container {
  position: fixed;
  top: calc(var(--topbar-h) + 16px);
  right: 16px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 13px;
  max-width: 360px;
  pointer-events: auto;
  animation: toast-in 0.2s ease-out;
}

.toast.toast-error {
  border-left-color: var(--color-danger);
}

.toast.toast-success {
  border-left-color: var(--color-success);
}

.toast.toast-warn {
  border-left-color: var(--color-warning);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============================================================
 * モバイル対応
 * ============================================================ */
@media (max-width: 1100px) {
  .annot-layout {
    flex-direction: column;
  }
  .annot-sidebar {
    width: 100%;
    height: auto;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    max-height: 50vh;
  }
  .image-list {
    max-height: 30vh;
  }
}

/* 900px 以下では .sidebar-toggle が表示されるが、annotate ページでは
   サイドバーを隠す/出すトグルとして機能させる */
@media (max-width: 900px) {
  .annot-sidebar {
    display: none;
  }
  .annot-sidebar.open {
    display: flex;
  }
}

@media (max-width: 700px) {
  .annot-main {
    padding: 12px 12px 48px;
  }
  .tool-bar-row {
    gap: 6px 8px;
  }
  .tool-group {
    border-right: none;
    padding-right: 0;
  }
  .tool-label {
    display: none;
  }
  .annot-list {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
 * 損傷タイプ別カラードット
 * ============================================================ */
.dtype-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}