:root {
  color-scheme: light;
  --page: #f3f5f2;
  --surface: #ffffff;
  --surface-muted: #f7f8f5;
  --line: #d9dfda;
  --line-strong: #b9c4bd;
  --ink: #17231f;
  --ink-soft: #5d6b65;
  --blue: #2862c8;
  --blue-soft: #eaf0fc;
  --jade: #5f987f;
  --jade-deep: #356d58;
  --jade-soft: #e8f2ed;
  --coral: #c24f3c;
  --coral-soft: #faece8;
  --amber: #9c690d;
  --amber-soft: #fff3d8;
  --tile-face: #fffdf6;
  --tile-edge: #d8ccb4;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--page);
}

button,
input,
select {
  font: inherit;
}

button {
  letter-spacing: 0;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 92px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}

.app-header h1,
.section-heading h2,
.table-toolbar h2 {
  margin: 0;
  letter-spacing: 0;
}

.app-header h1 {
  font-size: 24px;
  line-height: 1.2;
}

.eyebrow,
.section-kicker {
  margin: 0 0 3px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.header-actions,
.small-actions,
.meld-controls {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.compact-field {
  min-width: 190px;
}

label {
  display: grid;
  gap: 5px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 650;
}

#meldSourceField[hidden],
#meldClaimTileField[hidden],
#eventTileField[hidden],
#eventSeatField[hidden] {
  display: none !important;
}

input,
select {
  width: 100%;
  min-height: 36px;
  padding: 7px 9px;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  outline: none;
  background: var(--surface);
}

input:focus,
select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(40, 98, 200, 0.12);
}

.button {
  min-height: 36px;
  padding: 7px 13px;
  border: 1px solid transparent;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 750;
  white-space: nowrap;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.button.primary {
  color: #ffffff;
  background: var(--blue);
}

.button.primary:hover {
  background: #1f51ac;
}

.button.secondary {
  color: var(--blue);
  border-color: #aebfe2;
  background: var(--blue-soft);
}

.button.tertiary {
  color: var(--ink-soft);
  border-color: var(--line);
  background: var(--surface);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 380px) minmax(660px, 1fr);
  gap: 12px;
  padding: 12px;
  align-items: start;
}

.builder-panel,
.inspect-panel,
.table-workspace {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
}

.builder-panel,
.inspect-panel {
  max-height: calc(100vh - 116px);
  overflow-y: auto;
}

.builder-panel {
  grid-row: 1 / span 2;
}

.table-workspace,
.inspect-panel {
  grid-column: 2;
}

.inspect-panel {
  display: grid;
  grid-template-columns: minmax(220px, 1.25fr) repeat(4, minmax(150px, 1fr));
  max-height: none;
  overflow: visible;
}

.panel-section {
  padding: 15px;
  border-bottom: 1px solid var(--line);
}

.panel-section:last-child {
  border-bottom: 0;
}

.section-heading,
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 13px;
}

.section-heading h2,
.table-toolbar h2 {
  font-size: 16px;
}

.panel-disclosure {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.panel-section > .panel-disclosure {
  margin: 12px -15px -15px;
  border-top: 1px solid var(--line);
  border-bottom: 0;
}

.panel-disclosure summary {
  padding: 12px 15px;
  color: var(--ink);
  cursor: pointer;
  font-size: 12px;
  font-weight: 750;
}

.panel-disclosure summary:hover {
  background: var(--surface-muted);
}

.panel-disclosure summary small {
  display: block;
  margin: 3px 0 0 15px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 500;
}

.panel-disclosure[open] summary {
  color: var(--blue);
}

.disclosure-body {
  padding: 0 15px 15px;
}

.builder-disclosure {
  border-bottom: 1px solid var(--line);
}

.result-disclosure {
  min-width: 0;
  border-right: 1px solid var(--line);
  border-bottom: 0;
}

.result-disclosure:last-child {
  border-right: 0;
}

.result-disclosure[open] {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  border-right: 0;
}

.validation-overview {
  border-right: 1px solid var(--line);
  border-bottom: 0;
}

.output-section .small-actions {
  justify-content: flex-end;
  margin-bottom: 8px;
}

.status-chip,
.selection-summary {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  padding: 3px 8px;
  border: 1px solid #b9d1c5;
  border-radius: 999px;
  color: var(--jade-deep);
  background: var(--jade-soft);
  font-size: 11px;
  font-weight: 750;
}

.status-chip.is-pending {
  color: var(--amber);
  border-color: #e4c98d;
  background: var(--amber-soft);
}

.status-chip.is-error {
  color: var(--coral);
  border-color: #e6b0a7;
  background: var(--coral-soft);
}

.service-status-button {
  font: inherit;
  cursor: pointer;
}

.service-status-button:hover {
  filter: brightness(0.97);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.control-label,
.inline-label {
  display: block;
  margin: 12px 0 6px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
}

.segmented {
  display: grid;
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  overflow: hidden;
  background: var(--surface-muted);
}

.segmented.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.segmented.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.segmented button {
  min-width: 0;
  min-height: 34px;
  padding: 5px 4px;
  color: var(--ink-soft);
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font-size: 12px;
}

.segmented button:last-child {
  border-right: 0;
}

.segmented button.is-active {
  color: #ffffff;
  background: var(--blue);
}

.segmented.compact button {
  min-height: 42px;
  padding: 4px 2px;
  font-size: 10px;
  line-height: 1.2;
}

.target-controls {
  display: grid;
  grid-template-columns: minmax(90px, 1fr) auto auto;
  gap: 8px;
  align-items: end;
  margin-top: 12px;
}

.target-meter {
  display: grid;
  gap: 4px;
  min-width: 66px;
  padding: 4px 8px 5px;
  border-left: 2px solid var(--jade);
}

.target-meter span {
  color: var(--ink-soft);
  font-size: 10px;
}

.target-meter strong {
  font-size: 13px;
}

.meld-editor {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
}

.meld-controls {
  display: grid;
  grid-template-columns: minmax(100px, 1fr) minmax(120px, 1fr) auto auto;
  gap: 8px;
  align-items: end;
}

.structure-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 8px;
  align-items: end;
}

.field-note,
.muted {
  color: var(--ink-soft);
  font-size: 11px;
}

.field-note {
  margin: 7px 0 0;
  line-height: 1.45;
}

.field-note.is-active {
  color: var(--jade-deep);
  font-weight: 650;
}

.tile-palette {
  display: grid;
  gap: 9px;
}

.tile-suit-group {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 5px;
  align-items: start;
}

.tile-suit-group h3 {
  margin: 7px 0 0;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.tile-suit-row {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 4px;
}

.tile-choice {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 3px;
  min-width: 0;
  padding: 3px 2px 4px;
  color: var(--ink-soft);
  border: 1px solid transparent;
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
}

.tile-choice:hover:not(:disabled) {
  border-color: #aebfe2;
  background: var(--blue-soft);
}

.tile-choice:disabled {
  cursor: not-allowed;
  opacity: 0.36;
}

.tile-choice small {
  font-size: 9px;
}

.tile-count-badge {
  position: absolute;
  top: 0;
  right: 0;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  color: #ffffff;
  border: 2px solid var(--surface);
  border-radius: 999px;
  background: var(--jade-deep);
  font-size: 9px;
  font-weight: 800;
  line-height: 12px;
}

.tile-count-badge.is-empty {
  background: var(--coral);
}

.tile-face {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 31px;
  aspect-ratio: 61 / 88;
  border: 1px solid var(--tile-edge);
  border-radius: 4px;
  background: var(--tile-face);
  box-shadow: 0 2px 5px rgba(31, 48, 40, 0.18);
  overflow: hidden;
}

.tile-face img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.tile-face.is-caishen {
  border-color: #d1a63e;
  box-shadow: 0 0 0 2px rgba(209, 166, 62, 0.24), 0 2px 5px rgba(31, 48, 40, 0.18);
}

.tile-face.is-generated::after {
  position: absolute;
  right: 2px;
  bottom: 2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.tile-face.small {
  width: 23px;
  border-radius: 3px;
}

.tile-face.mini {
  width: 19px;
  border-radius: 3px;
}

.tile-strip,
.target-content {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 4px;
  min-height: 43px;
}

.empty-strip {
  display: flex;
  align-items: center;
  min-height: 43px;
  padding: 7px 9px;
  color: var(--ink-soft);
  border: 1px dashed var(--line-strong);
  border-radius: 5px;
  background: var(--surface-muted);
  font-size: 11px;
}

.removable-tile {
  position: relative;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.removable-tile::after {
  position: absolute;
  top: -4px;
  right: -4px;
  display: none;
  width: 15px;
  height: 15px;
  color: #ffffff;
  border-radius: 50%;
  background: var(--coral);
  content: "×";
  font-size: 11px;
  line-height: 14px;
}

.removable-tile:hover::after {
  display: block;
}

.meld-group-editor {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-muted);
}

.meld-group-editor strong {
  margin-right: 2px;
  color: var(--ink-soft);
  font-size: 10px;
}

.table-workspace {
  min-width: 0;
}

.table-toolbar {
  min-height: 67px;
  margin: 0;
  padding: 12px 15px;
  border-bottom: 1px solid var(--line);
}

.toolbar-metrics {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--ink-soft);
  font-size: 11px;
}

.toolbar-metrics strong {
  color: var(--ink);
}

.table-stage {
  overflow: auto;
  padding: 12px;
  background: #eef1ed;
}

.mahjong-table {
  position: relative;
  width: 100%;
  min-width: 630px;
  max-width: 820px;
  min-height: 740px;
  margin: 0 auto;
  overflow: hidden;
  border: 10px solid #d8d0bf;
  border-radius: 8px;
  background: var(--jade);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.24);
}

.seat-view {
  position: absolute;
  z-index: 2;
  padding: 7px;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 6px;
  background: rgba(23, 61, 48, 0.42);
}

.seat-view.is-editing {
  border-color: #ffe29c;
  box-shadow: 0 0 0 2px rgba(255, 226, 156, 0.25);
}

.seat-top,
.seat-bottom {
  left: 7%;
  width: 86%;
}

.seat-top {
  top: 2%;
}

.seat-bottom {
  bottom: 2%;
}

.seat-left,
.seat-right {
  top: 26%;
  width: 29%;
  min-height: 335px;
}

.seat-left {
  left: 2%;
}

.seat-right {
  right: 2%;
}

.seat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 5px;
  font-size: 11px;
}

.seat-header strong {
  font-size: 12px;
}

.seat-header span {
  color: rgba(255, 255, 255, 0.8);
}

.table-zone {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 5px;
  align-items: start;
  margin-top: 4px;
  padding: 2px;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
}

.table-zone:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.08);
}

.table-zone:focus-visible {
  outline: 2px solid #ffe29c;
  outline-offset: 1px;
}

.table-zone.is-editing {
  border-color: #ffe29c;
  background: rgba(255, 255, 255, 0.12);
}

.table-zone-label {
  padding-top: 3px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 9px;
  font-weight: 750;
}

.table-zone-content {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  min-height: 28px;
}

.table-zone-note {
  margin-right: 3px;
  color: #f7e8a2;
  font-size: 9px;
  font-weight: 800;
  white-space: nowrap;
}

.table-empty {
  color: rgba(255, 255, 255, 0.54);
  font-size: 9px;
  line-height: 25px;
}

.table-meld-group {
  display: flex;
  align-items: flex-end;
  gap: 1px;
  margin-right: 4px;
  padding-right: 4px;
  border-right: 1px solid rgba(255, 255, 255, 0.25);
}

.claimed-meld-tile {
  display: inline-flex;
  padding-bottom: 2px;
  border-bottom: 3px solid #f2c94c;
}

.meld-group-editor .claimed-meld-tile {
  margin-bottom: 1px;
}

.table-center {
  position: absolute;
  top: 43%;
  left: 50%;
  z-index: 1;
  display: grid;
  justify-items: center;
  width: 170px;
  padding: 13px 10px;
  transform: translate(-50%, -50%);
  color: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 20px rgba(23, 51, 41, 0.18);
}

.table-center p,
.table-center span {
  margin: 0;
  color: var(--ink-soft);
  font-size: 10px;
}

.table-center strong {
  margin: 3px 0;
  font-size: 15px;
}

.wall-counter {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 8px;
  padding-top: 7px;
  border-top: 1px solid var(--line);
}

.wall-counter b {
  font-size: 22px;
}

.validation-summary {
  display: grid;
  gap: 3px;
  padding: 11px;
  border-left: 3px solid var(--amber);
  background: var(--amber-soft);
}

.validation-summary strong {
  font-size: 14px;
}

.validation-summary span {
  color: var(--ink-soft);
  font-size: 11px;
}

.validation-summary.is-valid {
  border-color: var(--jade-deep);
  background: var(--jade-soft);
}

.validation-summary.is-error {
  border-color: var(--coral);
  background: var(--coral-soft);
}

.validation-list {
  display: grid;
  gap: 6px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.validation-list li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 6px;
  align-items: start;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.4;
}

.validation-list .mark {
  display: grid;
  place-items: center;
  width: 17px;
  height: 17px;
  color: #ffffff;
  border-radius: 50%;
  background: var(--jade-deep);
  font-size: 10px;
}

.validation-list li.is-error .mark {
  background: var(--coral);
}

.validation-list li.is-warning .mark {
  color: #614511;
  background: #e9c66a;
}

#actionPreview[hidden] {
  display: none !important;
}

.action-preview {
  margin-top: 12px;
  padding-top: 11px;
  border-top: 1px solid var(--line);
}

.action-preview-heading {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 7px;
  font-size: 11px;
}

.action-preview-heading span {
  color: var(--ink-soft);
}

.action-preview-list {
  display: grid;
  gap: 7px;
}

.action-group {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 7px;
  align-items: start;
}

.action-group > strong {
  padding-top: 6px;
  color: var(--ink-soft);
  font-size: 10px;
}

.action-group-items {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.action-candidate {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 31px;
  min-height: 34px;
  padding: 3px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-muted);
  font-size: 10px;
}

.wall-preview {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 5px;
  min-height: 67px;
}

.wall-preview.empty-strip {
  display: flex;
}

.wall-preview-item {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  padding-top: 7px;
}

.wall-preview-index {
  position: absolute;
  top: 0;
  left: 50%;
  color: var(--ink-soft);
  font-size: 8px;
  line-height: 1;
  transform: translateX(-50%);
}

.inventory-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px;
}

.inventory-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  gap: 6px;
  align-items: center;
  min-height: 31px;
  padding: 3px 5px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-muted);
}

.inventory-item.is-full {
  border-color: #e2b3aa;
  background: var(--coral-soft);
}

.inventory-name {
  overflow: hidden;
  color: var(--ink-soft);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.inventory-count {
  font-size: 10px;
  font-weight: 800;
}

.mini-glyph {
  display: grid;
  place-items: center;
  width: 22px;
  aspect-ratio: 61 / 88;
  border: 1px solid var(--tile-edge);
  border-radius: 3px;
  background: var(--tile-face);
}

.mini-glyph img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.output-section pre {
  max-height: 310px;
  margin: 0;
  padding: 10px;
  overflow: auto;
  color: #dce9e2;
  border-radius: 5px;
  background: #26342f;
  font: 10px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 50;
  max-width: 320px;
  padding: 10px 13px;
  color: #ffffff;
  border-radius: 5px;
  background: #26342f;
  box-shadow: 0 8px 24px rgba(23, 35, 31, 0.25);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 150ms ease, transform 150ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.toast.is-error {
  background: var(--coral);
}

@media (max-width: 1260px) {
  .workspace {
    grid-template-columns: minmax(310px, 350px) minmax(620px, 1fr);
  }

  .inspect-panel {
    grid-template-columns: minmax(210px, 1.2fr) repeat(2, minmax(170px, 1fr));
  }

  .result-disclosure:nth-of-type(3),
  .result-disclosure:nth-of-type(4) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 980px) {
  .app-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .compact-field {
    flex: 1 1 210px;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .builder-panel,
  .inspect-panel {
    max-height: none;
  }

  .builder-panel {
    grid-row: auto;
  }

  .table-workspace,
  .inspect-panel {
    grid-column: 1;
  }

  .inspect-panel {
    grid-template-columns: 1fr;
  }

  .validation-overview,
  .result-disclosure {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .result-disclosure[open] {
    grid-column: 1;
  }
}

@media (max-width: 520px) {
  .app-header {
    padding: 13px;
  }

  .workspace {
    padding: 8px;
  }

  .form-grid,
  .structure-row,
  .meld-controls {
    grid-template-columns: 1fr;
  }

  .target-controls {
    grid-template-columns: 1fr 1fr;
  }

  .target-controls .button {
    grid-column: 1 / -1;
  }

  .segmented.compact {
    grid-template-columns: 1fr 1fr;
  }

  .segmented.compact button:nth-child(2) {
    border-right: 0;
  }

  .segmented.compact button:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .tile-suit-row {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }
}