:root {
  --bg: #f3eee7;
  --card: #f7f4ef;
  --ink: #2f2924;
  --muted: #8d8278;
  --line: #e6dfd6;
  --accent: #c56b45;
  --accent-deep: #a65332;
  --soft: #f6e6dc;
  --shadow: 0 8px 24px rgba(90, 58, 36, 0.05);
  --dock: 72px;
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

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

button { cursor: pointer; }

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.ir-bar {
  position: sticky;
  top: 0;
  z-index: 12;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: calc(10px + env(safe-area-inset-top)) 14px 10px;
  background: rgba(243, 238, 231, 0.94);
  border-bottom: 1px solid rgba(230, 223, 214, 0.9);
  backdrop-filter: blur(12px);
}

.ir-back {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  flex: 0 0 auto;
  height: 36px;
  padding: 0 10px 0 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fffdf9;
  color: var(--ink);
}

.ir-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.ir-logo {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
}

.ir-brand-text { min-width: 0; }

.ir-brand h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ir-brand p {
  margin: 1px 0 0;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ir-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 12px 12px calc(var(--dock) + env(safe-area-inset-bottom) + 16px);
}

.ir-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 14px;
}

.ir-card h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
}

.ir-card-desc {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.ir-modes,
.ir-views {
  display: inline-flex;
  padding: 3px;
  border-radius: 999px;
  background: #efe8e0;
  gap: 2px;
}

.ir-modes { margin: 12px 0; }

.ir-mode,
.ir-view {
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 13px;
}

.ir-mode.is-on,
.ir-view.is-on {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(80, 50, 20, 0.08);
}

.ir-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  padding: 22px 12px 18px;
  border: 1.5px dashed #ddd2c6;
  border-radius: 16px;
  background: rgba(255, 252, 248, 0.7);
}

.ir-drop.is-over {
  border-color: var(--accent);
  background: var(--soft);
}

.ir-drop-badge {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #f8ebe4;
  color: var(--accent);
}

.ir-drop-title {
  margin: 6px 0 0;
  font-weight: 650;
}

.ir-drop-hint,
.ir-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.ir-note { margin-top: 10px; }

.ir-pick {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.ir-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
}

.ir-presets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}

.ir-preset {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-height: 108px;
  padding: 10px 8px;
  border-radius: 14px;
  border: 1.5px solid var(--line);
  background: #fffdfb;
  text-align: center;
}

.ir-preset.is-on {
  border-color: var(--accent);
  background: #fff8f4;
  box-shadow: inset 0 0 0 1px var(--accent);
}

.ir-preset-ico {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-bottom: 4px;
  color: var(--muted);
}

.ir-preset.is-on .ir-preset-ico { color: var(--accent); }

.ir-ico-land,
.ir-ico-square {
  display: block;
  border: 1.6px solid currentColor;
  border-radius: 2px;
}

.ir-ico-land { width: 22px; height: 14px; }
.ir-ico-square { width: 16px; height: 16px; }

.ir-preset-name { font-size: 14px; font-weight: 650; }
.ir-preset-size { font-size: 12px; color: #5c534c; }
.ir-preset-hint { font-size: 11px; color: var(--muted); line-height: 1.35; }

.ir-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}

.ir-field > span { font-size: 13px; font-weight: 600; }

.ir-field input,
.ir-field select {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1px solid #ddd4cb;
  background: #fff;
  font-size: 16px;
}

.ir-field small { color: var(--muted); font-size: 12px; }

.ir-field.is-off { opacity: 0.55; }

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

.ir-fields .ir-field { margin-top: 12px; }

@media (max-width: 360px) {
  .ir-fields { grid-template-columns: 1fr; }
}

@media (max-width: 879px) {
  .ir-wrap { gap: 8px; }
  .ir-card { padding: 12px; }
  .ir-modes { margin: 8px 0; }
  .ir-drop { padding: 14px 12px 12px; }
  .ir-drop-badge { width: 44px; height: 44px; }
  .ir-preset { min-height: 84px; padding: 8px 6px; }
  .ir-note { margin-top: 8px; }
}

.ir-progress {
  min-height: 1.2em;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.ir-progress[hidden] { display: none; }

.ir-export-inline { display: none; }

.ir-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 650;
}

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

.ir-btn-primary:disabled {
  background: #e4cfc4;
  color: #fff;
}

.ir-btn-line {
  background: #fff;
  border-color: #e4d5cc;
  color: var(--accent-deep);
}

.ir-btn-line:disabled {
  color: #c7b2a8;
  background: #f6f1ec;
}

.ir-btn:disabled { cursor: not-allowed; }

.ir-board-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 8px;
}

.ir-board-title { min-width: 0; }

.ir-board-tools {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  margin-left: auto;
}

.ir-board-status {
  display: flex;
  gap: 6px;
}

.ir-board-status span {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 999px;
  background: #f3ece4;
  color: var(--muted);
  font-size: 12px;
}

.ir-board-status strong {
  color: var(--ink);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.ir-textbtn {
  border: 0;
  background: transparent;
  color: var(--accent-deep);
  padding: 6px;
  font-size: 13px;
}

.ir-list { display: flex; flex-direction: column; gap: 8px; }
.ir-list[hidden] { display: none !important; }

.ir-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 220px;
  color: var(--muted);
  text-align: center;
}

.ir-empty strong { color: #6d645c; font-weight: 600; }

.ir-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 8px 8px 8px 2px;
  border-radius: 14px;
  border: 1px dashed #e3d9cf;
  background: #fffdfb;
  text-align: left;
}

.ir-grip {
  display: grid;
  place-items: center;
  width: 32px;
  height: 44px;
  flex: 0 0 auto;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #b3a79d;
  touch-action: none;
  cursor: grab;
}

.ir-grip:active { cursor: grabbing; }

.ir-cell-grip {
  position: absolute;
  top: 4px;
  right: 4px;
  z-index: 2;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(255, 253, 249, 0.94);
  color: #6d645c;
  box-shadow: 0 1px 2px rgba(80, 50, 20, 0.14);
}

.ir-list.is-sorting .ir-row {
  transition: transform 200ms cubic-bezier(0.22, 0.7, 0.25, 1);
}

.ir-row.is-placeholder {
  opacity: 0;
}

.ir-cell.is-lifted {
  transform: scale(1.04);
  box-shadow: 0 10px 24px rgba(80, 50, 20, 0.16);
  z-index: 2;
  transition: transform 160ms cubic-bezier(0.22, 0.7, 0.25, 1), box-shadow 160ms ease;
}

.ir-sort-ghost {
  position: fixed;
  z-index: 70;
  box-sizing: border-box;
  margin: 0;
  pointer-events: none;
  box-shadow: 0 14px 32px rgba(80, 50, 20, 0.18);
  transition: transform 160ms cubic-bezier(0.22, 0.7, 0.25, 1);
}

.ir-sort-ghost.is-lifted {
  transform: scale(1.025);
}

@media (prefers-reduced-motion: reduce) {
  .ir-list.is-sorting .ir-row,
  .ir-sort-ghost,
  .ir-cell.is-lifted {
    transition: none;
  }
}

.ir-row.is-drop-before::before,
.ir-row.is-drop-after::after,
.ir-cell.is-drop-before::before,
.ir-cell.is-drop-after::after {
  content: "";
  position: absolute;
  z-index: 3;
  border-radius: 2px;
  background: var(--accent);
  pointer-events: none;
}

.ir-row.is-drop-before::before,
.ir-row.is-drop-after::after {
  left: 10px;
  right: 10px;
  height: 3px;
}

.ir-row.is-drop-before::before { top: -6px; }
.ir-row.is-drop-after::after { bottom: -6px; }

.ir-cell.is-drop-before::before,
.ir-cell.is-drop-after::after {
  top: 8px;
  bottom: 8px;
  width: 3px;
}

.ir-cell.is-drop-before::before { left: -6px; }
.ir-cell.is-drop-after::after { right: -6px; }

body.ir-sorting { user-select: none; cursor: grabbing; }

.ir-row.is-filled {
  border-style: solid;
  touch-action: none;
  cursor: grab;
}

.ir-cell.is-filled {
  touch-action: none;
  cursor: grab;
}

.ir-row.is-accent { border-color: #e7b39a; }

.ir-row.is-selected {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.ir-row-hit {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
}

.ir-no {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #f3ece4;
  font-size: 12px;
  font-weight: 700;
}

.ir-row.is-accent .ir-no {
  background: #f8e7df;
  color: var(--accent-deep);
}

.ir-thumb {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  border-radius: 10px;
  overflow: hidden;
  background: #f3ece4;
  display: grid;
  place-items: center;
  color: #b3a79d;
}

.ir-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ir-row-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}

.ir-row-meta strong,
.ir-row-meta small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ir-row-meta strong { font-size: 14px; font-weight: 650; }
.ir-row-meta small { color: var(--muted); font-size: 12px; }
.ir-row-meta small.is-error { color: #b42318; }

.ir-row-side {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 0 0 auto;
}

.ir-iconbtn {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #8d8278;
  font-size: 20px;
  line-height: 1;
}

.ir-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.ir-cell {
  position: relative;
  aspect-ratio: 1;
  padding: 0;
  border-radius: 12px;
  border: 1.5px dashed #ddd2c6;
  background: #fffdfb;
  overflow: visible;
  color: #b3a79d;
}

.ir-cell-open {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: inherit;
  overflow: hidden;
  background: transparent;
  color: inherit;
}

.ir-cell.is-accent { border-color: #e7b39a; color: #c48970; }
.ir-cell.is-filled { border-style: solid; }
.ir-cell.is-selected { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }

.ir-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ir-cell-no {
  position: absolute;
  left: 6px;
  bottom: 4px;
  font-size: 11px;
  font-weight: 700;
  color: #6d645c;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

.ir-cell:not(.is-filled) .ir-cell-no {
  left: 50%;
  top: 58%;
  bottom: auto;
  transform: translate(-50%, -50%);
  text-shadow: none;
  color: inherit;
}

.ir-cell-cam {
  position: absolute;
  left: 50%;
  top: 38%;
  transform: translate(-50%, -50%);
}

.ir-preview { display: none; }

.ir-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(47, 41, 36, 0.38);
}

.ir-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(247, 244, 239, 0.96);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.ir-toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--dock) + env(safe-area-inset-bottom) + 12px);
  z-index: 50;
  transform: translateX(-50%);
  max-width: min(88vw, 420px);
  margin: 0;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(47, 41, 36, 0.92);
  color: #fff;
  font-size: 13px;
  text-align: center;
}

.ir-toast[hidden],
.ir-views[hidden],
.ir-textbtn[hidden],
.ir-grid[hidden],
.ir-backdrop[hidden] { display: none !important; }

body.ir-lock { overflow: hidden; }

@media (max-width: 1099px) {
  .ir.is-preview .ir-backdrop { display: block; }
  .ir.is-preview .ir-preview {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    z-index: 40;
    margin: 0;
    border-radius: 0;
    background: var(--card);
    padding: calc(12px + env(safe-area-inset-top)) 14px calc(16px + env(safe-area-inset-bottom));
  }
}

.ir-preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ir-preview-head h2 { margin: 0; font-size: 16px; }

.ir-preview-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  margin-top: 12px;
  flex: 1;
}

.ir-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  border-radius: 14px;
  background:
    linear-gradient(45deg, #efe8e0 25%, transparent 25%),
    linear-gradient(-45deg, #efe8e0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #efe8e0 75%),
    linear-gradient(-45deg, transparent 75%, #efe8e0 75%);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
  background-color: #f7f3ee;
  overflow: hidden;
}

.ir-stage img {
  width: 100%;
  max-height: min(52vh, 520px);
  object-fit: contain;
}

.ir-meta {
  display: grid;
  gap: 4px;
  margin: 0;
  font-size: 13px;
}

.ir-meta div { display: flex; justify-content: space-between; gap: 12px; }
.ir-meta dt { color: var(--muted); }
.ir-meta dd { margin: 0; text-align: right; }

@media (min-width: 880px) and (max-width: 1099px) {
  .ir-wrap {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    align-items: start;
    width: min(1080px, calc(100% - 24px));
  }

  .ir-controls { display: flex; flex-direction: column; gap: 12px; }
}

@media (min-width: 1100px) {
  .ir {
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  .ir-bar { flex: 0 0 auto; }

  .ir-wrap {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr) minmax(280px, 340px);
    align-items: stretch;
    flex: 1;
    min-height: 0;
    width: min(1480px, calc(100% - 32px));
    margin: 0 auto;
    padding: 12px 0;
  }

  .ir-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 0;
    overflow: auto;
    padding-right: 2px;
  }

  .ir-export-inline {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
  }

  .ir-dock { display: none; }

  .ir-board {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
  }

  .ir-list,
  .ir-grid {
    flex: 1;
    min-height: 0;
    overflow: auto;
  }

  .ir-empty { flex: 1; min-height: 100%; }

  .ir-preview {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: auto;
  }

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

  .ir-toast { bottom: 24px; }
}