:root {
  --primary: #b8768f;
  --primary-dark: #96566e;
  --bg: #faf7f5;
  --card-bg: #ffffff;
  --text: #333333;
  --muted: #888888;
  --border: #e5dfdc;
  --danger: #d9534f;
  --ok: #4caf50;
  --low: #ff9800;
  --out: #d9534f;
}

* { box-sizing: border-box; }

/* [hidden]属性は必ず非表示にする(要素個別のクラスでdisplayを指定していると
   author stylesheet側が [hidden] のUA既定スタイルより優先されてしまうため、念のため明示する) */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
}

#app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

header.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--primary);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header.app-header h1 {
  font-size: 18px;
  margin: 0;
}

header.app-header button {
  background: rgba(255,255,255,0.2);
  border: none;
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  row-gap: 4px;
}

.header-actions button {
  padding: 6px 8px;
  font-size: 12px;
  white-space: nowrap;
}

main {
  flex: 1;
  padding: 12px;
  padding-bottom: 80px;
}

/* ログイン画面 */
.login-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  gap: 16px;
}

.login-screen h1 {
  font-size: 22px;
  color: var(--primary-dark);
}

.login-screen input {
  width: 100%;
  max-width: 280px;
  padding: 14px;
  font-size: 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: center;
  letter-spacing: 4px;
}

.login-screen button {
  width: 100%;
  max-width: 280px;
  padding: 14px;
  font-size: 16px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
}

.error-text {
  color: var(--danger);
  font-size: 14px;
}

/* 検索バー */
.searchbar {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.searchbar input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 16px;
}

.view-toggle {
  display: flex;
  gap: 6px;
}

.view-toggle button {
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  font-size: 14px;
}

.view-toggle button.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* カテゴリタブ */
.category-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 10px;
}

.category-tabs button {
  flex-shrink: 0;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 14px;
  white-space: nowrap;
}

.category-tabs button.active {
  background: var(--primary-dark);
  color: #fff;
  border-color: var(--primary-dark);
}

/* 色系統・メーカー・購入場所フィルタ(Phase 3) */
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.filter-row select {
  flex: 1 1 auto;
  min-width: 104px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  background: #fff;
  color: var(--text);
}

/* 一覧: グリッド */
.material-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.material-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 10px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.color-chip {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #eee;
  object-fit: cover;
  display: block;
}

.material-card .name {
  font-weight: bold;
  font-size: 14px;
}

.material-card .sub {
  font-size: 12px;
  color: var(--muted);
}

.status-badge {
  align-self: flex-start;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  color: #fff;
}

.status-ok { background: var(--ok); }
.status-low { background: var(--low); }
.status-out { background: var(--out); }

.status-badge-tappable {
  cursor: pointer;
}
.status-badge-tappable:active {
  opacity: 0.6;
}

/* 一覧: リスト */
.material-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 8px;
}

.material-list-item .color-chip {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.material-list-item .info {
  flex: 1;
  min-width: 0;
}

.material-list-item .info .name {
  font-weight: bold;
  font-size: 14px;
}

.material-list-item .info .sub {
  font-size: 12px;
  color: var(--muted);
}

/* フォーム */
.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
  font-family: inherit;
}

.form-actions {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}

.btn {
  flex: 1;
  padding: 14px;
  border-radius: 10px;
  border: none;
  font-size: 15px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary {
  background: #eee;
  color: var(--text);
}

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

.danger-zone {
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.btn-text-danger {
  background: none;
  border: none;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--danger);
  text-decoration: underline;
  opacity: 0.75;
}

.fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 28px;
  border: none;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  z-index: 20;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 40px 20px;
}

.detail-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

main h2 {
  font-size: 16px;
  margin: 16px 0 8px;
  color: var(--text);
}

main h2:first-child {
  margin-top: 0;
}

main h3 {
  font-size: 14px;
  margin: 16px 0 8px;
  color: var(--muted);
}

/* ボタン(小) */
.btn-small {
  padding: 8px 10px;
  border-radius: 8px;
  border: none;
  font-size: 13px;
  background: var(--primary);
  color: #fff;
  white-space: nowrap;
}

.btn-danger-small {
  background: var(--danger);
  color: #fff;
}

/* カテゴリ管理画面 */
.category-add-form {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.category-add-form input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 16px;
}

.category-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.category-row {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
}

.category-row .category-name-input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
}

/* 買い物リスト画面 */
.shopping-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 8px;
}

.shopping-item .info {
  flex: 1;
  min-width: 0;
}

.shopping-item .name {
  font-weight: bold;
  font-size: 14px;
}

.shopping-item .sub {
  font-size: 12px;
  color: var(--muted);
}

.extra-check {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  font-size: 14px;
  min-width: 0;
}

.extra-item.done .extra-check span {
  text-decoration: line-through;
  color: var(--muted);
}

/* 店頭クイック確認モード */
.quick-check-form {
  margin-bottom: 16px;
}

.quick-result {
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 12px;
  text-align: center;
}

.quick-result-yes {
  background: #e8f5e9;
  border: 2px solid var(--ok);
}

.quick-result-no {
  background: #fdecea;
  border: 2px solid var(--out);
}

.quick-result-label {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 6px;
}

.quick-result-yes .quick-result-label { color: var(--ok); }
.quick-result-no .quick-result-label { color: var(--out); }

.quick-result-name {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 4px;
}

.quick-result-sub {
  font-size: 13px;
  color: var(--muted);
}

/* 資材詳細: 購入履歴・購入記録 */
.purchase-section {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.purchase-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.purchase-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

.purchase-main {
  font-size: 13px;
  font-weight: bold;
}

.purchase-sub {
  font-size: 12px;
  color: var(--muted);
}

.detail-header .back {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--primary-dark);
}

/* 画像セクション(登録/編集フォーム内, Phase 3) */
.hint-text {
  font-size: 12px;
  color: var(--muted);
  margin: 6px 0 0;
}

.image-section .image-preview {
  width: 140px;
  margin-bottom: 10px;
}

.image-section .image-preview .color-chip {
  width: 140px;
  height: 140px;
}

.image-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.image-actions .btn {
  flex: none;
  padding: 10px 14px;
  font-size: 13px;
}

.image-file-label {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.image-url-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.image-url-row input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}

.image-search-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.image-google-link {
  display: inline-block;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  text-decoration: none;
}

.image-search-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 8px;
}

.image-candidate {
  padding: 0;
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #eee;
  aspect-ratio: 1;
}

.image-candidate img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-candidate:active {
  border-color: var(--primary);
}

/* バーコードスキャン画面(Phase 3, F20) */
.scan-area {
  text-align: center;
}

.scan-area video {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 4/3;
  background: #000;
  border-radius: 12px;
  object-fit: cover;
  margin-bottom: 10px;
}

.scan-area .form-group {
  text-align: left;
  margin-top: 16px;
}

/* 入出力・棚卸画面(Phase 4) */
.tools-page { display: flex; flex-direction: column; gap: 16px; }
.tool-section { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.tool-section h2 { margin: 0 0 12px; font-size: 18px; }
.tool-section input[type="file"] { display: block; width: 100%; margin: 12px 0; }
.tool-section label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; margin-bottom: 10px; }
.tool-section input[type="date"] { padding: 9px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; }
.tool-actions, .date-range { display: flex; gap: 10px; flex-wrap: wrap; }
.date-range label { flex: 1; min-width: 130px; }
.link-btn { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.error-box { margin: 10px 0; padding: 10px; border-radius: 8px; background: #fdecea; color: var(--out); }
.error-box ul { margin: 6px 0 0; padding-left: 20px; }
.success-text { color: var(--ok); font-weight: bold; }
.preview-table { overflow-x: auto; margin: 10px 0; }
.preview-table table { width: 100%; border-collapse: collapse; font-size: 12px; white-space: nowrap; }
.preview-table th, .preview-table td { padding: 7px; border: 1px solid var(--border); text-align: left; }
.stocktake-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.stocktake-row .btn { flex: none; padding: 7px 10px; }
.report-total { margin-top: 12px; font-size: 16px; }
.report-total strong { font-size: 22px; color: var(--primary-dark); }