:root {
  --bg: #121614;
  --bg-deep: #0c0f0d;
  --bg-panel: #1a1f1c;
  --bg-elevated: #232a26;
  --border: #2f3833;
  --border-soft: #26302b;
  --text: #eef2ef;
  --text-muted: #8e9a92;
  --accent: #2f9e8a;
  --accent-hover: #3cb89f;
  --accent-dim: rgba(47, 158, 138, 0.16);
  --danger: #d96868;
  --ok: #5cbc7a;
  --warn: #c9a227;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  --font: "Noto Sans TC", "PingFang HK", "Hiragino Sans CNS", "Microsoft JhengHei", sans-serif;
  --font-display: "IBM Plex Sans", "Noto Sans TC", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background:
    radial-gradient(ellipse 70% 45% at 8% -5%, rgba(47, 158, 138, 0.14), transparent 55%),
    radial-gradient(ellipse 50% 40% at 95% 5%, rgba(201, 162, 39, 0.07), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbars */
.photos-panel,
.controls-panel,
.preview-panel,
.thumb-grid,
.multi-preview-strip {
  scrollbar-width: thin;
  scrollbar-color: #3d4a43 transparent;
}

.app {
  max-width: 1520px;
  margin: 0 auto;
  padding: 22px 18px 48px;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-soft);
}

.brand-kicker {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

.app-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.lede {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--accent-dim);
  border: 1px solid rgba(47, 158, 138, 0.35);
  color: var(--accent-hover);
  white-space: nowrap;
}

/* 三欄：相片 | 設定 | 預覽 */
.layout {
  display: grid;
  grid-template-columns: minmax(230px, 0.9fr) minmax(300px, 1fr) minmax(340px, 1.2fr);
  gap: 16px;
  align-items: start;
}

.photos-panel,
.controls-panel,
.preview-panel {
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.controls-panel {
  touch-action: pan-y;
}

.preview-panel {
  position: sticky;
  top: 14px;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr 1.15fr;
  }
  .photos-panel {
    grid-column: 1 / -1;
    max-height: none;
  }
  .preview-panel {
    position: static;
  }
}

@media (max-width: 720px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .photos-panel,
  .controls-panel,
  .preview-panel {
    max-height: none;
  }
}

.panel {
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.03), transparent 40%), var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-soft);
}

.panel-head-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-head h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--accent-dim);
  color: var(--accent-hover);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.meta {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.count-pill {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
}

.btn-reset {
  flex-shrink: 0;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 650;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.btn-reset:hover {
  color: var(--danger);
  border-color: rgba(217, 104, 104, 0.5);
  background: rgba(217, 104, 104, 0.08);
}

.fold-summary .btn-reset {
  margin-left: auto;
  margin-right: 4px;
}

/* Dropzone */
.dropzone {
  border: 1.5px dashed #44524a;
  border-radius: var(--radius-sm);
  padding: 26px 14px 22px;
  text-align: center;
  cursor: pointer;
  background: rgba(35, 42, 38, 0.55);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
  margin-bottom: 12px;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-dim);
  outline: none;
  transform: translateY(-1px);
}

.dropzone-icon {
  width: 36px;
  height: 36px;
  margin: 0 auto 10px;
  border-radius: 10px;
  border: 1.5px dashed #5a6b62;
  position: relative;
}

.dropzone-icon::before,
.dropzone-icon::after {
  content: "";
  position: absolute;
  background: var(--text-muted);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.dropzone-icon::before {
  width: 14px;
  height: 2px;
}

.dropzone-icon::after {
  width: 2px;
  height: 14px;
}

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

.dropzone-title {
  font-size: 0.9rem;
  font-weight: 650;
}

.dropzone-hint {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 5px;
}

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
  gap: 8px;
  max-height: 380px;
  overflow-y: auto;
  padding: 2px;
}

.thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  background: var(--bg-elevated);
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}

.thumb:hover {
  transform: scale(1.02);
}

.thumb.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

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

.thumb-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: rgba(12, 15, 13, 0.78);
  color: #fff;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
}

.thumb:hover .thumb-remove,
.thumb:focus-within .thumb-remove {
  opacity: 1;
}

.thumb-remove:hover {
  background: var(--danger);
}

/* Folds as soft cards */
.fold {
  margin: 0 0 8px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  background: rgba(12, 15, 13, 0.35);
  overflow: hidden;
}

.fold:first-of-type {
  margin-top: 0;
}

.fold-summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 12px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.fold-summary:hover {
  background: rgba(255, 255, 255, 0.02);
}

.fold-summary::-webkit-details-marker {
  display: none;
}

.fold-check {
  margin-bottom: 0;
  flex: 1;
  min-width: 0;
}

.fold-title {
  font-size: 0.8rem;
  font-weight: 650;
  color: var(--text-muted);
}

.fold-title-main {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font-display);
}

.fold-chevron {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  background: var(--bg-elevated);
  flex-shrink: 0;
}

.fold-chevron::before {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.5px solid var(--text-muted);
  border-bottom: 1.5px solid var(--text-muted);
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform 0.18s;
}

.fold:not([open]) > .fold-summary .fold-chevron::before {
  transform: rotate(-45deg) translate(-1px, 0);
}

.fold-body {
  padding: 0 12px 14px;
}

.fold[open] > .fold-summary {
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 12px;
}

.fold-nested {
  margin-top: 8px;
  margin-bottom: 8px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.fold-nested .fold-summary {
  padding: 9px 10px;
}

.fold-nested[open] > .fold-summary {
  margin-bottom: 8px;
}

.fold-nested .fold-body {
  padding: 0 10px 10px;
}

.hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin: 0 0 12px;
  line-height: 1.5;
}

.shortcut-panel {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}

.shortcut-title {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.photos-panel .preset-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 10px;
}

.photos-panel .btn-chip {
  width: 100%;
  text-align: center;
  border-radius: 8px;
}

.photos-panel .preset-save-row {
  margin: 0;
}

.preset-name-row {
  margin-top: 4px;
  margin-bottom: 8px;
  align-items: stretch;
}

.preset-name-input {
  flex: 1;
  min-width: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 10px;
  font-family: inherit;
  font-size: 0.8rem;
}

.preset-name-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.named-preset-row {
  min-height: 0;
  margin-bottom: 8px;
}

.named-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  max-width: 100%;
}

.named-chip-name,
.layer-chip-label {
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  padding: 0;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

details.fold[hidden] {
  display: none;
}

.named-chip-del {
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0 2px;
}

.named-chip-del:hover {
  color: var(--danger);
}

.layer-bar {
  margin-bottom: 14px;
  padding: 10px;
  background: rgba(35, 42, 38, 0.4);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
}

.layer-bar-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.layer-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}

.layer-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 7px 8px;
  font-family: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}

.layer-chip.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.layer-chip.off {
  opacity: 0.55;
}

.layer-chip-type {
  flex-shrink: 0;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent-hover);
  min-width: 36px;
}

.layer-chip-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-chip-del {
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 4px;
}

.layer-chip-del:hover {
  color: var(--danger);
}

.layer-add-row {
  display: flex;
  gap: 6px;
}

.layer-add-row .btn {
  flex: 1;
  padding: 7px 8px;
  font-size: 0.76rem;
}

.opacity-hint {
  margin: -2px 0 8px;
}

.btn-step {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  padding: 0;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
}

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

.btn-block {
  width: 100%;
  padding: 10px 14px;
}

.export-actions .btn-primary {
  margin-top: 0;
}

.export-mode {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.export-mode .btn-chip {
  flex: 1;
  min-width: 72px;
  text-align: center;
  border-radius: 8px;
}

#jpgQualityWrap[hidden] {
  display: none;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.btn-chip {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 0.76rem;
  font-weight: 600;
  border-radius: 999px;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.btn-chip:hover,
.btn-chip.active {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent-hover);
}

.btn-chip-accent {
  border-color: rgba(47, 158, 138, 0.45);
}

.preset-save-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: -4px 0 12px;
}

.preset-save-row .btn-secondary,
.preset-save-row .btn-ghost {
  padding: 5px 10px;
  font-size: 0.74rem;
}

.preset-save-status {
  margin: 0;
}

.move-panel {
  display: none;
}

.pos-simple {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding: 12px 10px;
  background: rgba(35, 42, 38, 0.4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
}

.pos-tip {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin: 0;
}

.pos-body .field-stack {
  margin-bottom: 6px;
}

.pos-body .field-stack > span {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-weight: 600;
  color: var(--text-muted);
}

.pos-body .field-stack output {
  color: var(--accent-hover);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.dpad {
  display: grid;
  grid-template-columns: repeat(3, 48px);
  grid-template-rows: repeat(3, 40px);
  gap: 5px;
}

.dpad-up { grid-column: 2; grid-row: 1; }
.dpad-left { grid-column: 1; grid-row: 2; }
.dpad-center { grid-column: 2; grid-row: 2; }
.dpad-right { grid-column: 3; grid-row: 2; }
.dpad-down { grid-column: 2; grid-row: 3; }

.btn-dpad {
  width: 100%;
  height: 100%;
  padding: 0;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 0.84rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  line-height: 1.1;
  transition: border-color 0.15s, background 0.15s, color 0.15s, transform 0.1s;
}

.dpad-arrow {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
}

.dpad-label {
  font-size: 0.62rem;
  font-weight: 650;
  color: var(--text-muted);
}

.btn-dpad:hover .dpad-label {
  color: var(--accent-hover);
}

.export-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-compress {
  width: 100%;
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--accent);
  padding: 11px 14px;
  font-weight: 700;
}

.btn-compress:hover:not(:disabled) {
  background: var(--accent-dim);
  color: var(--accent-hover);
}

.export-hint {
  margin: 0 0 4px;
}

.btn-dpad:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent-hover);
}

.btn-dpad:active {
  transform: scale(0.96);
}

.dpad-center {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  flex-direction: row;
}

.move-side {
  flex: 1;
  min-width: 140px;
}

.step-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 10px;
}

.btn-nudge {
  width: 32px;
  height: 32px;
  padding: 0;
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.btn-nudge:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent-hover);
}

.btn-nudge:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.size-estimate {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 6px 0 12px;
  line-height: 1.5;
  min-height: 1.3em;
  padding: 8px 10px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
}

.size-estimate.is-ready {
  color: var(--ok);
  border-color: rgba(92, 188, 122, 0.35);
  background: rgba(92, 188, 122, 0.08);
}

.slider-with-num {
  display: flex;
  align-items: center;
  gap: 6px;
}

.slider-with-num input[type="range"] {
  flex: 1;
  min-width: 0;
  height: 32px;
  touch-action: none;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

.slider-with-num input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--border);
  border-radius: 999px;
}

.slider-with-num input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  margin-top: -11px;
  border-radius: 50%;
  background: var(--accent-hover);
  border: 2px solid #0c0f0d;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}

.slider-with-num input[type="range"]::-moz-range-track {
  height: 6px;
  background: var(--border);
  border-radius: 999px;
}

.slider-with-num input[type="range"]::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-hover);
  border: 2px solid #0c0f0d;
}

.num-input,
.field-num input[type="number"] {
  width: 62px;
  flex-shrink: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 6px;
  font-size: 0.82rem;
  font-family: inherit;
  font-variant-numeric: tabular-nums;
}

.num-input:focus,
.field-num input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.num-unit {
  font-size: 0.72rem;
  color: var(--text-muted);
  min-width: 0.9em;
}

.num-row {
  margin-bottom: 4px;
}

.preview-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: 72%;
}

.preview-nav .meta {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: center;
  flex: 1;
  min-width: 0;
}

.multi-preview-wrap {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}

.multi-preview-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
  gap: 8px;
}

.multi-preview-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: var(--font-display);
}

.multi-preview-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(108px, 1fr));
  gap: 8px;
  max-height: 280px;
  overflow-y: auto;
  padding: 2px;
}

.multi-card {
  width: 100%;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  cursor: pointer;
  overflow: hidden;
  padding: 0;
  font-family: inherit;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}

.multi-card:hover {
  border-color: #44524a;
  transform: translateY(-1px);
}

.multi-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.multi-card canvas {
  display: block;
  width: 100%;
  height: 80px;
  background: #0e1210;
}

.multi-card-name {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  padding: 5px 6px 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 10px;
  cursor: pointer;
}

.check-row input[type="checkbox"] {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
}

.logo-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.logo-preview {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: repeating-conic-gradient(#2a3330 0% 25%, #1a1f1c 0% 50%) 50% / 12px 12px;
  overflow: hidden;
}

.logo-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.74rem;
  color: var(--text-muted);
  flex: 1;
  min-width: 0;
  margin-bottom: 10px;
}

.field input[type="text"],
.field select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.86rem;
  font-family: inherit;
}

.field input[type="text"]:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.field input[type="range"] {
  width: 100%;
  height: 32px;
  accent-color: var(--accent);
  touch-action: none;
}

.field input[type="color"] {
  width: 100%;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg-elevated);
  cursor: pointer;
}

.field output {
  font-size: 0.72rem;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.field-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.anchor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
  margin-bottom: 4px;
  max-width: 230px;
}

.anchor-grid button {
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg-panel);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: inherit;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.anchor-grid button:hover {
  border-color: var(--accent);
  color: var(--text);
}

.anchor-grid button.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-hover);
}

.btn {
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 650;
  padding: 8px 14px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s, border-color 0.15s, transform 0.1s;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  width: 100%;
  background: linear-gradient(180deg, var(--accent-hover), var(--accent));
  color: #061210;
  padding: 12px 14px;
  margin-top: 4px;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 14px rgba(47, 158, 138, 0.28);
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--danger);
}

.preview-stage {
  position: relative;
  background:
    linear-gradient(45deg, #151a17 25%, transparent 25%),
    linear-gradient(-45deg, #151a17 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #151a17 75%),
    linear-gradient(-45deg, transparent 75%, #151a17 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-color: #0e1210;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#previewCanvas {
  max-width: 100%;
  max-height: min(52vh, 480px);
  display: none;
  cursor: grab;
  touch-action: none;
}

#previewCanvas.dragging {
  cursor: grabbing;
}

#previewCanvas.visible {
  display: block;
}

.preview-empty {
  font-size: 0.84rem;
  color: var(--text-muted);
  text-align: center;
  padding: 28px 18px;
  line-height: 1.65;
}

.preview-empty.hidden {
  display: none;
}

.progress-wrap {
  margin-top: 12px;
}

.progress-bar {
  height: 7px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--ok));
  transition: width 0.15s ease;
}

.progress-text {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.status {
  font-size: 0.78rem;
  margin-top: 8px;
  color: var(--text-muted);
}

.status.error {
  color: var(--danger);
}

.status.ok {
  color: var(--ok);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}