:root {
  --ink: #191a17;
  --ink-soft: #3f413b;
  --muted: #777a71;
  --muted-2: #9b9e94;
  --line: #e5e6e0;
  --line-strong: #d4d6ce;
  --paper: #ffffff;
  --paper-soft: #fafaf7;
  --canvas: #e9eae5;
  --accent: #0f766e;
  --accent-strong: #0b5d57;
  --accent-soft: #e6f5f1;
  --accent-line: #b7e3d9;
  --danger: #c2410c;
  --danger-soft: #fff3ed;
  --warn: #a16207;
  --warn-soft: #fffaeb;
  --shadow-sm: 0 1px 2px rgba(25, 26, 23, .05);
  --shadow-md: 0 8px 28px rgba(25, 26, 23, .10);
  --shadow-page: 0 2px 5px rgba(25, 26, 23, .08), 0 18px 45px rgba(25, 26, 23, .12);
  --header-h: 64px;
  --radius: 10px;
  --font: "Inter", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

button {
  border: 0;
  background: none;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

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

svg {
  display: block;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.app-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: var(--header-h);
  padding: 0 20px;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  color: #ffffff;
  background: var(--ink);
  border-radius: 11px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .07);
}

.brand-mark svg {
  width: 38px;
  height: 38px;
}

.brand-text h1 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.015em;
}

.brand-text p {
  margin-top: 1px;
  color: var(--muted);
  font-size: 11.5px;
  white-space: nowrap;
}

.mode-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: #f1f2ec;
  border: 1px solid #e6e7e0;
  border-radius: 8px;
}

.mode-switch a {
  display: inline-flex;
  align-items: center;
  height: 27px;
  padding: 0 10px;
  color: var(--muted);
  border-radius: 5px;
  font-size: 11.5px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color .16s ease, background-color .16s ease;
}

.mode-switch a:hover {
  color: var(--ink);
}

.mode-switch a.is-active {
  color: var(--ink);
  background: var(--paper);
  box-shadow: 0 1px 2px rgba(25, 26, 23, .1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.privacy-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-right: 4px;
  padding: 5px 9px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border: 1px solid #d4efe8;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.privacy-pill svg {
  width: 13px;
  height: 13px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 12px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-ghost {
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line-strong);
}

.btn-ghost:hover {
  background: #f7f7f3;
  border-color: #c5c8be;
}

.btn-dark {
  color: #ffffff;
  background: var(--ink);
  border: 1px solid var(--ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .12);
}

.btn-dark:hover {
  background: #30312c;
  border-color: #30312c;
}

.btn:disabled {
  opacity: .5;
}

.layout {
  display: grid;
  grid-template-columns: 304px minmax(0, 1fr) 330px;
  height: calc(100vh - var(--header-h));
  min-height: 0;
}

.queue-panel,
.settings-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--paper-soft);
}

.queue-panel {
  border-right: 1px solid var(--line);
}

.settings-panel {
  background: var(--paper);
  border-left: 1px solid var(--line);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 56px;
  flex: 0 0 56px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.panel-title h2 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .01em;
}

.count-badge {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 20px;
  padding: 0 6px;
  color: var(--ink-soft);
  background: #eeefe9;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  color: var(--muted);
  border-radius: 7px;
  transition: color .16s ease, background-color .16s ease;
}

.icon-btn svg {
  width: 17px;
  height: 17px;
}

.icon-btn:hover {
  color: var(--danger);
  background: var(--danger-soft);
}

.text-btn {
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: #c9cbc3;
}

.text-btn:hover {
  color: var(--ink);
}

.sort-bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
}

.sort-bar label {
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 600;
}

.sort-select {
  min-width: 0;
  flex: 1;
  height: 30px;
  padding: 0 26px 0 9px;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}

.queue-list-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.queue-list {
  height: 100%;
  margin: 0;
  padding: 10px 10px 18px;
  overflow-y: auto;
  list-style: none;
  scrollbar-width: thin;
  scrollbar-color: #c9cbc3 transparent;
}

.queue-list::-webkit-scrollbar {
  width: 8px;
}

.queue-list::-webkit-scrollbar-thumb {
  background: #c9cbc3;
  border: 2px solid var(--paper-soft);
  border-radius: 999px;
}

.queue-item {
  position: relative;
  display: grid;
  grid-template-columns: 16px 44px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 8px;
  min-height: 66px;
  margin-bottom: 6px;
  padding: 6px 7px 6px 5px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 9px;
  box-shadow: var(--shadow-sm);
  cursor: grab;
  user-select: none;
  transition: border-color .14s ease, box-shadow .14s ease, opacity .14s ease;
}

.queue-item:hover {
  border-color: #cfd2c8;
  box-shadow: 0 2px 6px rgba(25, 26, 23, .07);
}

.queue-item.is-dragging {
  opacity: .38;
}

.queue-item.drop-before {
  box-shadow: inset 0 2px 0 var(--accent), var(--shadow-sm);
}

.queue-item.drop-after {
  box-shadow: inset 0 -2px 0 var(--accent), var(--shadow-sm);
}

.drag-grip {
  display: grid;
  grid-template-columns: repeat(2, 2px);
  gap: 3px;
  justify-content: center;
  color: #b7bab0;
}

.drag-grip i {
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: currentColor;
}

.thumb {
  position: relative;
  display: grid;
  place-items: center;
  width: 44px;
  height: 54px;
  overflow: hidden;
  background-color: #f0f1ec;
  background-image: linear-gradient(45deg, #e5e7e0 25%, transparent 25%, transparent 75%, #e5e7e0 75%), linear-gradient(45deg, #e5e7e0 25%, transparent 25%, transparent 75%, #e5e7e0 75%);
  background-position: 0 0, 6px 6px;
  background-size: 12px 12px;
  border: 1px solid #e2e4dd;
  border-radius: 5px;
}

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

.item-info {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.item-name {
  overflow: hidden;
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-meta {
  overflow: hidden;
  color: var(--muted);
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-index {
  position: absolute;
  left: 2px;
  top: 2px;
  display: grid;
  place-items: center;
  width: 18px;
  height: 15px;
  color: #ffffff;
  background: rgba(25, 26, 23, .68);
  border-radius: 4px;
  font-size: 8.5px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.item-actions {
  display: flex;
  flex-direction: column;
  gap: 1px;
  opacity: .35;
  transition: opacity .14s ease;
}

.queue-item:hover .item-actions,
.queue-item:focus-within .item-actions {
  opacity: 1;
}

.item-action {
  display: grid;
  place-items: center;
  width: 22px;
  height: 18px;
  color: var(--muted);
  border-radius: 4px;
}

.item-action svg {
  width: 12px;
  height: 12px;
}

.item-action:hover {
  color: var(--ink);
  background: #eeefe9;
}

.item-action[data-action="remove"]:hover {
  color: var(--danger);
  background: var(--danger-soft);
}

.item-action:disabled {
  opacity: .2;
  background: none;
}

.queue-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 28px 40px;
  text-align: center;
  color: var(--muted);
}

.queue-empty-icon {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  margin-bottom: 12px;
  color: #a9ada2;
  background: #f2f3ee;
  border: 1px dashed #d4d7cd;
  border-radius: 16px;
}

.queue-empty-icon svg {
  width: 42px;
  height: 42px;
}

.queue-empty strong {
  color: var(--ink-soft);
  font-size: 12.5px;
}

.queue-empty p {
  max-width: 190px;
  margin-top: 5px;
  font-size: 11.5px;
  line-height: 1.6;
}

.queue-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  padding: 11px 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 10.5px;
}

.queue-footer svg {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
}

.preview-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--canvas);
}

.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 48px;
  flex: 0 0 48px;
  padding: 0 18px;
  background: rgba(250, 250, 247, .88);
  border-bottom: 1px solid #dcdfd7;
  backdrop-filter: blur(10px);
}

.preview-title {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
}

.live-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(15, 118, 110, .12);
}

.dim-chip {
  overflow: hidden;
  max-width: 230px;
  padding: 2px 7px;
  color: var(--muted);
  background: #eef0ea;
  border-radius: 5px;
  font-size: 10.5px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.toolbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 28px;
  padding: 0 8px;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}

.toolbar-btn svg {
  width: 14px;
  height: 14px;
}

.toolbar-btn:hover {
  color: var(--ink);
  background: #f0f1ec;
}

.toolbar-btn.is-active {
  color: var(--accent-strong);
  background: var(--accent-soft);
  border-color: #c9eae2;
}

.zoom-group {
  display: flex;
  align-items: center;
  height: 28px;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
}

.zoom-btn {
  display: grid;
  place-items: center;
  width: 26px;
  height: 100%;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1;
}

.zoom-btn:hover {
  background: #f3f4ef;
}

.zoom-fit {
  height: 100%;
  padding: 0 7px;
  color: var(--muted);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-size: 10.5px;
  font-weight: 600;
}

.zoom-fit:hover,
.zoom-fit.is-active {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.zoom-label {
  min-width: 46px;
  padding: 0 4px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.preview-viewport {
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  background-color: var(--canvas);
  background-image: radial-gradient(circle at 1px 1px, rgba(64, 68, 58, .13) 1px, transparent 0);
  background-size: 18px 18px;
  scrollbar-width: thin;
  scrollbar-color: #bec2b7 transparent;
}

.preview-viewport::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}

.preview-viewport::-webkit-scrollbar-thumb {
  background: #bec2b7;
  border: 3px solid var(--canvas);
  border-radius: 999px;
}

.preview-stage {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: max-content;
  min-width: 100%;
  min-height: 100%;
  padding: 30px 30px 80px;
}

.preview-page {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  overflow: hidden;
  background: #ffffff;
  border-radius: 2px;
  box-shadow: var(--shadow-page);
}

.preview-page.is-transparent {
  background-color: #ffffff;
  background-image: linear-gradient(45deg, #e9ece5 25%, transparent 25%, transparent 75%, #e9ece5 75%), linear-gradient(45deg, #e9ece5 25%, transparent 25%, transparent 75%, #e9ece5 75%);
  background-position: 0 0, 9px 9px;
  background-size: 18px 18px;
}

.preview-slice {
  position: relative;
  flex: 0 0 auto;
  overflow: hidden;
  background: transparent;
}

.preview-slice img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  user-select: none;
}

.preview-page.show-guides .preview-slice:not(:first-child)::before {
  content: "";
  position: absolute;
  z-index: 3;
  top: 0;
  left: 0;
  right: 0;
  border-top: 1px dashed rgba(234, 88, 12, .9);
  pointer-events: none;
}

.preview-page.show-guides .preview-slice::after {
  content: attr(data-index);
  position: absolute;
  z-index: 4;
  top: 5px;
  left: 5px;
  padding: 1px 5px;
  color: #ffffff;
  background: rgba(234, 88, 12, .88);
  border-radius: 4px;
  font-size: 9px;
  font-weight: 700;
  line-height: 1.45;
  pointer-events: none;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  align-self: center;
  justify-content: center;
  width: min(560px, calc(100vw - 760px));
  min-width: 340px;
  padding: 46px 28px;
  text-align: center;
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(255, 255, 255, .9);
  border-radius: 18px;
  box-shadow: 0 12px 36px rgba(49, 53, 44, .07);
  backdrop-filter: blur(8px);
}

.empty-illustration {
  display: block;
  width: 120px;
  height: 96px;
  margin-bottom: 10px;
}

.empty-illustration svg {
  width: 100%;
  height: 100%;
}

.empty-state h2 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.empty-state > p {
  max-width: 390px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.7;
}

.empty-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 21px;
}

.empty-tip {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 22px;
  color: var(--muted-2);
  font-size: 10.5px;
}

kbd {
  display: inline-grid;
  place-items: center;
  min-width: 19px;
  height: 18px;
  padding: 0 4px;
  color: var(--ink-soft);
  background: #ffffff;
  border: 1px solid #d7d9d1;
  border-bottom-color: #c5c8be;
  border-radius: 4px;
  box-shadow: 0 1px 0 #d7d9d1;
  font-family: var(--font);
  font-size: 9.5px;
  font-weight: 600;
}

.settings-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 4px 18px 22px;
  scrollbar-width: thin;
  scrollbar-color: #c9cbc3 transparent;
}

.settings-scroll::-webkit-scrollbar {
  width: 8px;
}

.settings-scroll::-webkit-scrollbar-thumb {
  background: #c9cbc3;
  border: 2px solid var(--paper);
  border-radius: 999px;
}

.setting-block {
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.setting-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
}

.setting-head label,
.setting-label {
  color: var(--ink);
  font-size: 12.5px;
  font-weight: 700;
}

.setting-note {
  color: var(--muted-2);
  font-size: 10px;
}

.setting-help {
  margin-top: 7px;
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.6;
}

.value-badge {
  color: var(--ink-soft);
  background: #f0f1eb;
  border-radius: 5px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.width-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 94px;
  gap: 7px;
}

.width-preset {
  width: 100%;
  height: 34px;
  padding: 0 26px 0 9px;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
}

.number-wrap {
  display: flex;
  align-items: center;
  height: 34px;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
}

.number-wrap input {
  width: 100%;
  min-width: 0;
  height: 100%;
  padding: 0 2px 0 9px;
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.number-wrap span {
  padding-right: 8px;
  color: var(--muted);
  font-size: 10px;
}

.range {
  width: 100%;
  margin: 3px 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.color-row {
  display: flex;
  align-items: center;
  gap: 7px;
}

.color-input {
  width: 38px;
  height: 34px;
  flex: 0 0 38px;
  padding: 3px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  cursor: pointer;
}

.color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-input::-webkit-color-swatch {
  border: 0;
  border-radius: 4px;
}

.hex-input {
  width: 82px;
  height: 34px;
  padding: 0 8px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11.5px;
  text-transform: lowercase;
}

.mini-check {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  color: var(--ink-soft);
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
}

input[type="checkbox"] {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  padding: 3px;
  background: #f1f2ec;
  border: 1px solid #e8e9e2;
  border-radius: 8px;
}

.segmented button {
  height: 28px;
  color: var(--muted);
  border-radius: 5px;
  font-size: 11px;
  font-weight: 700;
}

.segmented button:hover {
  color: var(--ink);
}

.segmented button.is-active {
  color: var(--ink);
  background: var(--paper);
  box-shadow: 0 1px 2px rgba(25, 26, 23, .1);
}

.quality-row {
  margin-top: 12px;
}

.quality-row .setting-head {
  margin-bottom: 5px;
}

.summary-card {
  margin: 16px 0;
  padding: 12px;
  background: #f6f7f2;
  border: 1px solid #e6e8e0;
  border-radius: 9px;
}

.summary-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  min-height: 22px;
}

.summary-row span {
  color: var(--muted);
  font-size: 10.5px;
}

.summary-row strong {
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.summary-scale {
  margin-top: 8px;
  padding-top: 8px;
  color: var(--warn);
  border-top: 1px dashed #ddd9c7;
  font-size: 10px;
  line-height: 1.5;
}

.warning {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  margin: 0 0 14px;
  padding: 9px 10px;
  color: var(--warn);
  background: var(--warn-soft);
  border: 1px solid #f2e3b7;
  border-radius: 8px;
  font-size: 10.5px;
  line-height: 1.55;
}

.warning.is-error {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: #fed7c3;
}

.warning svg {
  width: 15px;
  height: 15px;
  flex: 0 0 15px;
  margin-top: 1px;
}

.options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  cursor: pointer;
  user-select: none;
}

.check-row input {
  margin-top: 2px;
  flex: 0 0 15px;
}

.check-row span {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.check-row strong {
  color: var(--ink-soft);
  font-size: 11.5px;
  font-weight: 600;
}

.check-row small {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.export-footer {
  flex: 0 0 auto;
  padding: 13px 18px 15px;
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.export-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 100%;
  height: 43px;
  color: #ffffff;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 9px;
  box-shadow: 0 3px 8px rgba(15, 118, 110, .18);
  font-size: 13px;
  font-weight: 700;
  transition: background-color .16s ease, transform .16s ease, box-shadow .16s ease;
}

.export-btn svg {
  width: 18px;
  height: 18px;
}

.export-btn:hover:not(:disabled) {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  box-shadow: 0 5px 14px rgba(15, 118, 110, .24);
}

.export-btn:active:not(:disabled) {
  transform: translateY(1px);
}

.export-btn:disabled {
  color: #9fa49b;
  background: #eceee8;
  border-color: #e2e4dd;
  box-shadow: none;
}

.export-note {
  margin-top: 8px;
  color: var(--muted-2);
  font-size: 10px;
  text-align: center;
}

.drop-overlay {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 28px;
  background: rgba(21, 24, 20, .55);
  backdrop-filter: blur(3px);
}

.drop-overlay-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: min(560px, 100%);
  min-height: 300px;
  padding: 35px;
  color: var(--ink);
  background: rgba(255, 255, 255, .97);
  border: 2px dashed var(--accent);
  border-radius: 18px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, .22);
  text-align: center;
}

.drop-overlay-icon {
  display: grid;
  place-items: center;
  width: 76px;
  height: 76px;
  margin-bottom: 15px;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 50%;
}

.drop-overlay-icon svg {
  width: 52px;
  height: 52px;
}

.drop-overlay-card h2 {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.drop-overlay-card p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.export-overlay {
  position: fixed;
  z-index: 120;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(20, 23, 19, .42);
  backdrop-filter: blur(3px);
}

.export-card {
  width: min(360px, 100%);
  padding: 26px 26px 23px;
  background: var(--paper);
  border-radius: 14px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .22);
  text-align: center;
}

.export-spinner {
  display: block;
  width: 34px;
  height: 34px;
  margin: 0 auto 14px;
  border: 3px solid #dcefe9;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .85s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.export-card h3 {
  font-size: 16px;
  font-weight: 700;
}

.export-card p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11.5px;
}

.export-card .export-hint {
  margin-top: 9px;
  color: var(--muted-2);
  font-size: 10px;
}

.progress-track {
  height: 6px;
  margin-top: 17px;
  overflow: hidden;
  background: #edf0ea;
  border-radius: 999px;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #14b8a6, var(--accent));
  border-radius: inherit;
  transition: width .18s ease;
}

.help-dialog {
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  padding: 0;
  color: var(--ink);
  background: var(--paper);
  border: 0;
  border-radius: 16px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .26);
}

.help-dialog::backdrop {
  background: rgba(20, 23, 19, .45);
  backdrop-filter: blur(3px);
}

.help-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 24px 17px;
  border-bottom: 1px solid var(--line);
}

.help-kicker {
  display: block;
  margin-bottom: 4px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.help-head h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.help-body {
  max-height: min(58vh, 460px);
  overflow-y: auto;
  padding: 4px 24px 20px;
}

.help-step {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.step-num {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border-radius: 7px;
  font-size: 10px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.help-step strong {
  display: block;
  margin-bottom: 3px;
  font-size: 12.5px;
  font-weight: 700;
}

.help-step p {
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.65;
}

.help-tip {
  margin-top: 16px;
  padding: 12px 13px;
  background: #f6f8f3;
  border: 1px solid #e7e9e1;
  border-radius: 9px;
}

.help-tip strong {
  font-size: 11.5px;
  font-weight: 700;
}

.help-tip p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.6;
}

.help-shortcuts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 15px;
  margin-top: 15px;
  color: var(--muted);
  font-size: 10px;
}

.help-shortcuts span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.help-footer {
  display: flex;
  justify-content: flex-end;
  padding: 14px 24px 20px;
  border-top: 1px solid var(--line);
}

.toast-stack {
  position: fixed;
  z-index: 200;
  left: 50%;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: min(520px, calc(100vw - 32px));
  transform: translateX(-50%);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 100%;
  padding: 10px 13px;
  color: #ffffff;
  background: rgba(30, 32, 28, .94);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .2);
  font-size: 11.5px;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease;
}

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

.toast.is-success {
  background: rgba(11, 93, 87, .96);
}

.toast.is-error {
  background: rgba(154, 52, 18, .96);
}

.toast.is-warn {
  background: rgba(133, 96, 12, .96);
}

.toast-icon {
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  margin-top: 1px;
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

.noscript {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--ink);
  background: #ffffff;
  font-size: 14px;
}

@media (max-width: 1240px) {
  .layout {
    grid-template-columns: 280px minmax(0, 1fr) 312px;
  }

  .privacy-pill {
    display: none;
  }

  .empty-state {
    width: min(520px, calc(100vw - 640px));
    min-width: 320px;
  }
}

@media (max-width: 1040px) {
  .header-actions .btn-ghost {
    padding: 0 9px;
  }

  .brand-text p {
    display: none;
  }

  .layout {
    grid-template-columns: 258px minmax(0, 1fr) 296px;
  }

  .empty-state {
    min-width: 300px;
    padding: 36px 22px;
  }

  .dim-chip {
    max-width: 130px;
  }
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .app-header {
    height: auto;
    min-height: var(--header-h);
    flex-wrap: wrap;
    gap: 10px;
    padding: 11px 14px;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .layout {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: calc(100vh - var(--header-h));
  }

  .queue-panel {
    max-height: 350px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .preview-panel {
    min-height: 68vh;
  }

  .preview-viewport {
    min-height: 58vh;
  }

  .preview-stage {
    padding: 24px 16px 60px;
  }

  .settings-panel {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .settings-scroll {
    overflow: visible;
  }

  .export-footer {
    position: sticky;
    bottom: 0;
    z-index: 5;
  }

  .empty-state {
    width: calc(100vw - 48px);
    min-width: 0;
  }

  .privacy-pill,
  .toolbar-btn svg {
    display: none;
  }

  .toolbar-btn {
    padding: 0 5px;
  }
}

@media (max-width: 560px) {
  .brand-text h1 {
    font-size: 14px;
  }

  .mode-switch a {
    padding: 0 7px;
    font-size: 10.5px;
  }

  .brand-mark,
  .brand-mark svg {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .header-actions {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
  }

  .header-actions .btn {
    padding: 0 6px;
    font-size: 11px;
  }

  .header-actions .btn svg {
    display: none;
  }

  .empty-state {
    padding: 30px 16px;
  }

  .empty-state h2 {
    font-size: 17px;
  }

  .empty-actions {
    flex-direction: column;
    width: 100%;
  }

  .empty-actions .btn {
    width: 100%;
  }

  .empty-tip {
    display: none;
  }

  .dim-chip {
    display: none;
  }

  .zoom-label {
    min-width: 38px;
  }

  .help-head,
  .help-body,
  .help-footer {
    padding-left: 17px;
    padding-right: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}