:root {
  --bg: #0f1419;
  --bg2: #1a2332;
  --bg3: #243044;
  --card: #1e2a3a;
  --border: #2d3f56;
  --text: #e7eef7;
  --muted: #8b9cb3;
  --accent: #3b82f6;
  --accent2: #60a5fa;
  --good: #22c55e;
  --bad: #f59e0b;
  --danger: #ef4444;
  --low: #38bdf8;
  --high: #f472b6;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 10% -10%, #1e3a5f 0%, transparent 50%),
    radial-gradient(900px 500px at 100% 0%, #3b1d4a 0%, transparent 45%), var(--bg);
  color: var(--text);
}

body {
  line-height: 1.45;
}

a {
  color: var(--accent2);
}

.app {
  max-width: min(1680px, 100%);
  margin: 0 auto;
  padding: 16px 14px 48px;
}

/* 3 columns: config/gallery | groups+plan | singles (drag source) */
.workspace {
  display: grid;
  grid-template-columns:
    minmax(320px, 1fr)
    minmax(420px, 1.25fr)
    minmax(200px, 0.62fr);
  gap: 14px;
  align-items: start;
}

.col {
  min-width: 0;
}

.col-left,
.col-mid,
.col-singles {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.col-mid {
  position: sticky;
  top: 10px;
  max-height: calc(100vh - 20px);
  overflow: auto;
  padding-bottom: 12px;
}

/* Groups toolbar sticks to top of the scrolling middle column */
.sticky-bar {
  position: sticky;
  top: 0;
  z-index: 6;
  margin: -16px -18px 12px;
  padding: 12px 18px 10px;
  background: #1b2635;
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.28);
}

.sticky-bar .row-actions {
  margin-top: 8px;
}

#plan-panel .row-actions {
  position: sticky;
  top: 0;
  z-index: 5;
  margin: -16px -18px 8px;
  padding: 12px 18px 10px;
  background: #1b2635;
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
}

/* far-right singles column: always visible while dragging */
.col-singles {
  position: sticky;
  top: 10px;
  max-height: calc(100vh - 20px);
}

#singles-panel {
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 40px);
}

.singles-col {
  flex: 1;
  min-height: 160px;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 4px 2px 40px;
}

.singles-col .card {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 8px;
  align-items: start;
}

.singles-col .card img {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  cursor: pointer;
}

.singles-col .card .meta {
  padding: 2px 0 0;
}

.singles-col .card .rename-input {
  width: 100%;
  min-width: 0;
  margin-top: 4px;
  font-size: 0.78rem;
  padding: 4px 6px;
}

@media (max-width: 1400px) {
  .workspace {
    grid-template-columns: minmax(320px, 1fr) minmax(420px, 1.3fr);
  }
  .col-singles {
    position: static;
    max-height: none;
    order: 3;
  }
  .singles-col {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  .singles-col .card {
    display: flex;
    flex-direction: column;
  }
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }
  .col-mid {
    position: static;
    max-height: none;
    overflow: visible;
  }
}

header.top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

header.top h1 {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

header.top p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.panel {
  background: color-mix(in srgb, var(--card) 92%, black);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  margin-bottom: 16px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent2);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

@media (max-width: 900px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 4px;
}

input,
select,
button,
textarea {
  font: inherit;
}

input[type="text"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.field {
  margin-bottom: 2px;
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  align-items: center;
}

button {
  border: none;
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  transition: 0.15s ease;
}

button:hover:not(:disabled) {
  filter: brightness(1.08);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.primary {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border-color: transparent;
  font-weight: 600;
}

button.success {
  background: linear-gradient(135deg, #15803d, #22c55e);
  border-color: transparent;
  font-weight: 600;
}

button.danger {
  background: color-mix(in srgb, var(--danger) 25%, var(--bg3));
  border-color: color-mix(in srgb, var(--danger) 50%, var(--border));
  color: #fecaca;
}

button.ghost {
  background: transparent;
}

.hint {
  font-size: 0.82rem;
  color: var(--muted);
}

.status-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.9rem;
}

.progress {
  flex: 1;
  min-width: 180px;
  height: 8px;
  background: var(--bg2);
  border-radius: 99px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress > i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #a78bfa);
  transition: width 0.25s ease;
}



#gallery-panel.collapsed-after-scan .gallery-grid {
  max-height: 220px;
  opacity: 0.9;
}

#gallery-panel.collapsed-after-scan::after {
  content: "扫描完成 · 图库已折叠，结果在右侧";
  display: block;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

#result-panel {
  scroll-margin-top: 12px;
}



/* gallery uses more width on left */
.gallery-grid {
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
}

@media (min-width: 1100px) {
  .gallery-grid {
    max-height: min(58vh, 640px);
  }
}

.path-pick {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.path-pick input {
  flex: 1;
  min-width: 0;
}

.path-pick button {
  flex-shrink: 0;
  white-space: nowrap;
}

/* Folder picker modal */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(4, 8, 16, 0.72);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal {
  width: min(720px, 100%);
  max-height: min(86vh, 820px);
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg3) 70%, transparent);
}

.modal-head h2 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text);
}

.modal-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 16px 0;
  align-items: center;
}

.modal-toolbar input {
  flex: 1;
  min-width: 140px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding: 10px 16px 0;
  font-size: 0.88rem;
}

.breadcrumb button {
  padding: 4px 8px;
  font-size: 0.82rem;
}

.folder-current {
  padding: 8px 16px;
  font-size: 0.86rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
}

.folder-current code {
  color: var(--accent2);
  font-size: 0.84rem;
  word-break: break-all;
}

.folder-list {
  flex: 1;
  min-height: 220px;
  max-height: 46vh;
  overflow: auto;
  margin: 0 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg2);
}

.folder-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 8px;
  align-items: center;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border: none;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
}

.folder-row:last-child {
  border-bottom: none;
}

.folder-row:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.folder-row.selected {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  box-shadow: inset 3px 0 0 var(--accent);
}

.folder-row .ico {
  font-size: 1.05rem;
}

.folder-row .name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.folder-row .meta {
  color: var(--muted);
  font-size: 0.78rem;
}

.folder-empty {
  padding: 28px 16px;
  text-align: center;
  color: var(--muted);
}

.modal-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 12px 16px 14px;
  border-top: 1px solid var(--border);
  margin-top: 12px;
}

.dir-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--bg2);
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.85rem;
}

.chip:hover {
  border-color: var(--accent);
}

.stats {
  color: var(--muted);
  font-size: 0.88rem;
}

.cluster {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
  margin-bottom: 14px;
  overflow: hidden;
}

.cluster-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--bg3) 80%, transparent);
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.buckets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

@media (max-width: 800px) {
  .buckets {
    grid-template-columns: 1fr;
  }
}

.bucket {
  padding: 10px;
  min-height: 120px;
}

.bucket.low {
  border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--low) 6%, transparent);
}

.bucket.high {
  background: color-mix(in srgb, var(--high) 7%, transparent);
}

@media (max-width: 800px) {
  .bucket.low {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

.bucket h3 {
  margin: 0 0 8px;
  font-size: 0.85rem;
  font-weight: 600;
}

.bucket.low h3 {
  color: var(--low);
}

.bucket.high h3 {
  color: var(--high);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 8px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: #000;
  display: block;
  cursor: zoom-in;
}

.card .meta {
  padding: 6px 8px 8px;
  font-size: 0.72rem;
  color: var(--muted);
  word-break: break-all;
}

.card .meta strong {
  display: block;
  color: var(--text);
  font-size: 0.75rem;
  margin-bottom: 2px;
  max-height: 2.4em;
  overflow: hidden;
}

.card .rename-preview {
  margin: 4px 0 2px;
  padding: 4px 6px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
  color: var(--accent2);
  font-size: 0.72rem;
  line-height: 1.35;
  word-break: break-all;
}

.card .rename-preview strong {
  display: inline;
  color: #fff;
  font-size: 0.74rem;
  max-height: none;
}

.card .rename-keep {
  margin: 4px 0 2px;
  font-size: 0.7rem;
  color: var(--good);
  opacity: 0.9;
}

.card .meta-sub {
  display: block;
  margin-top: 2px;
  font-size: 0.68rem;
  color: var(--muted);
}

.card .ops {
  display: flex;
  gap: 4px;
  padding: 0 6px 8px;
}

.card .ops button {
  flex: 1;
  padding: 5px 4px;
  font-size: 0.72rem;
}

.plan-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.plan-table th,
.plan-table td {
  border-bottom: 1px solid var(--border);
  padding: 8px 6px;
  text-align: left;
  vertical-align: top;
}

.plan-table th {
  color: var(--muted);
  font-weight: 500;
}

.plan-table tr:hover td {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.plan-table input.rename-input {
  width: min(360px, 48vw);
  min-width: 160px;
  padding: 6px 8px;
  font-size: 0.86rem;
}

.group-no-input {
  width: 72px;
  padding: 4px 6px;
  margin-left: 6px;
  font-size: 0.85rem;
}

.source-tag {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 7px;
  border-radius: 999px;
  font-size: 0.72rem;
  border: 1px solid var(--border);
  color: var(--muted);
}

.source-tag.existing {
  color: var(--good);
  border-color: color-mix(in srgb, var(--good) 50%, var(--border));
}

.source-tag.similarity {
  color: var(--accent2);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
}

.cluster.accepted {
  opacity: 0.72;
  border-color: color-mix(in srgb, var(--good) 45%, var(--border));
}

.cluster-head {
  align-items: center;
}

.cluster-head-left {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.cluster-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
  font-size: 0.88rem;
}

.cluster-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.cluster-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.cluster-actions button {
  padding: 5px 10px;
  font-size: 0.8rem;
}

.card .ops {
  flex-wrap: wrap;
}

.card .ops button[data-act="remove"] {
  flex: 1 1 100%;
  color: #fecaca;
  border-color: color-mix(in srgb, var(--danger) 45%, var(--border));
  background: color-mix(in srgb, var(--danger) 12%, var(--bg3));
}

.cluster:has(.cluster-check input:not(:checked)):not(.accepted) {
  opacity: 0.78;
}

.cluster.accepted .rename-preview {
  display: none;
}

.accepted-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  background: color-mix(in srgb, var(--good) 25%, transparent);
  color: var(--good);
  border: 1px solid color-mix(in srgb, var(--good) 45%, var(--border));
}

.badge {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 0.72rem;
  border: 1px solid var(--border);
}

.badge.low {
  color: var(--low);
  border-color: color-mix(in srgb, var(--low) 50%, var(--border));
}

.badge.high {
  color: var(--high);
  border-color: color-mix(in srgb, var(--high) 50%, var(--border));
}

.singles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 8px;
}

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  max-width: min(420px, calc(100vw - 32px));
  padding: 12px 14px;
  border-radius: 10px;
  background: #0b1220;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  z-index: 50;
  display: none;
}

.toast.show {
  display: block;
  animation: pop 0.2s ease;
}

.toast.error {
  border-color: color-mix(in srgb, var(--danger) 60%, var(--border));
}

.toast.ok {
  border-color: color-mix(in srgb, var(--good) 60%, var(--border));
}

@keyframes pop {
  from {
    transform: translateY(8px);
    opacity: 0;
  }
  to {
    transform: none;
    opacity: 1;
  }
}

.hidden {
  display: none !important;
}

/* Gallery multi-select */
.gallery-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.gallery-toolbar input[type="text"] {
  flex: 1;
  min-width: 160px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 10px;
  margin-top: 12px;
  max-height: min(62vh, 720px);
  overflow: auto;
  padding: 4px 2px 8px;
}

.g-card {
  position: relative;
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  user-select: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.g-card:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
}

.g-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 50%, transparent);
}

.g-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.g-thumb-wrap {
  position: relative;
  aspect-ratio: 1;
  background: #0a0f16;
}

.g-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #111;
}

.g-check {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(0, 0, 0, 0.35);
  color: transparent;
  font-size: 13px;
  line-height: 20px;
  text-align: center;
  font-weight: 700;
}

.g-card.selected .g-check {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}

.g-meta {
  padding: 6px 8px 8px;
  font-size: 0.72rem;
  color: var(--muted);
}

.g-name {
  display: block;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.g-size {
  opacity: 0.85;
}

.g-card.classified {
  opacity: 0.92;
}

.g-card.classified .g-thumb-wrap::after {
  content: "已分类";
  position: absolute;
  left: 6px;
  top: 6px;
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.85);
  color: #fff;
  font-weight: 600;
}

.g-badge {
  display: inline-block;
  margin-top: 2px;
  font-size: 0.65rem;
  color: var(--good);
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 80;
  padding: 20px;
}

.lightbox.show {
  display: flex;
}

.lightbox-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  max-width: 96vw;
}

.lightbox-stage {
  position: relative;
  max-width: min(96vw, 1200px);
  max-height: 86vh;
}

.lightbox img {
  display: block;
  max-width: min(96vw, 1200px);
  max-height: 86vh;
  border-radius: 8px;
  box-shadow: var(--shadow);
  object-fit: contain;
  background: #000;
}

.lightbox-loading {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.86rem;
  pointer-events: none;
}

.lightbox-meta {
  max-width: min(96vw, 900px);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  word-break: break-all;
}

.lightbox .close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
}

/* Drag & drop */
.card[draggable="true"] {
  cursor: grab;
}

.card[draggable="true"]:active {
  cursor: grabbing;
}

.bucket.drag-over,
.singles.drag-over,
.cluster.drag-over-cluster {
  outline: 2px dashed var(--accent);
  outline-offset: 2px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.card.dragging {
  opacity: 0.45;
}

details.advanced {
  margin-top: 10px;
}

details.advanced summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.88rem;
  user-select: none;
}

.adv-grid {
  margin-top: 10px;
}


#progress-panel {
  position: sticky;
  top: 8px;
  z-index: 20;
}