:root {
  color-scheme: light;
  --ui-bg: #f5f5f7;
  --panel-bg: rgba(255, 255, 255, 0.84);
  --panel-solid: #ffffff;
  --panel-subtle: #f6f7f9;
  --field-bg: rgba(118, 118, 128, 0.08);
  --field-hover: rgba(118, 118, 128, 0.13);
  --border: rgba(18, 18, 23, 0.10);
  --border-strong: rgba(18, 18, 23, 0.16);
  --text: #17171a;
  --text-secondary: #68686f;
  --text-tertiary: #94949d;
  --accent: #087cff;
  --accent-strong: #0066df;
  --accent-soft: rgba(8, 124, 255, 0.12);
  --success: #20a45b;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05), 0 6px 18px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.10), 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.18), 0 8px 24px rgba(0, 0, 0, 0.08);
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --topbar-height: 66px;
  --left-width: 292px;
  --right-width: 316px;
  --ease: cubic-bezier(.22, .8, .22, 1);
}

:root[data-ui-theme="dark"] {
  color-scheme: dark;
  --ui-bg: #0f1012;
  --panel-bg: rgba(28, 29, 33, 0.88);
  --panel-solid: #1c1d21;
  --panel-subtle: #24262b;
  --field-bg: rgba(255, 255, 255, 0.07);
  --field-hover: rgba(255, 255, 255, 0.11);
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.17);
  --text: #f5f5f7;
  --text-secondary: #b0b0b8;
  --text-tertiary: #797a83;
  --accent: #2997ff;
  --accent-strong: #53aaff;
  --accent-soft: rgba(41, 151, 255, 0.16);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25), 0 8px 22px rgba(0, 0, 0, 0.16);
  --shadow-md: 0 16px 42px rgba(0, 0, 0, 0.34), 0 2px 10px rgba(0, 0, 0, 0.18);
  --shadow-lg: 0 38px 90px rgba(0, 0, 0, 0.58), 0 8px 28px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 320px;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", sans-serif;
  background: var(--ui-bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

button,
label,
select,
input[type="range"],
input[type="color"] {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible,
.drop-zone:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 2px;
}

.svg-sprite {
  position: fixed;
  width: 0;
  height: 0;
  overflow: hidden;
}

svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

[hidden] {
  display: none !important;
}

.app-shell {
  display: grid;
  grid-template-rows: var(--topbar-height) minmax(0, 1fr);
  width: 100%;
  height: 100dvh;
  background:
    radial-gradient(circle at 50% -20%, rgba(255, 255, 255, .6), transparent 35%),
    var(--ui-bg);
}

:root[data-ui-theme="dark"] .app-shell {
  background:
    radial-gradient(circle at 50% -20%, rgba(65, 71, 82, .28), transparent 36%),
    var(--ui-bg);
}

.topbar {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--topbar-height);
  padding: 0 16px 0 18px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-bg) 92%, transparent);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
}

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

.app-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, #1f94ff, #0066e6);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.38), 0 6px 16px rgba(0, 104, 230, .22);
  overflow: hidden;
}

.app-mark span {
  position: absolute;
  width: 17px;
  height: 21px;
  border: 1.35px solid rgba(255,255,255,.94);
  border-radius: 2.5px;
  background: rgba(255,255,255,.12);
  transform: rotate(-8deg);
}

.app-mark span:nth-child(1) { transform: translate(-4px, 2px) rotate(-13deg); opacity: .58; }
.app-mark span:nth-child(2) { transform: translate(-1px, 0) rotate(-8deg); opacity: .78; }
.app-mark span:nth-child(3) { transform: translate(3px, -1px) rotate(-2deg); }

.brand-name {
  font-weight: 740;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.brand-subtitle {
  margin-top: 2px;
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 560;
  letter-spacing: .025em;
}

.privacy-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--field-bg);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.privacy-pill svg {
  width: 13px;
  height: 13px;
  color: var(--success);
  stroke-width: 2;
}

.topbar-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.toolbar-divider {
  width: 1px;
  height: 22px;
  margin: 0 2px;
  background: var(--border);
}

.icon-button,
.text-button,
.primary-button,
.secondary-button,
.zoom-value {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  cursor: pointer;
  transition: transform .16s var(--ease), background .16s ease, border-color .16s ease, opacity .16s ease, box-shadow .16s ease;
}

.icon-button:active,
.text-button:active,
.primary-button:active,
.secondary-button:active,
.zoom-value:active {
  transform: scale(.97);
}

.icon-button {
  width: 36px;
  height: 36px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
}

.icon-button:hover:not(:disabled) {
  background: var(--field-hover);
  color: var(--text);
}

.icon-button:disabled {
  opacity: .28;
  cursor: default;
}

.icon-button.small {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.icon-button.small svg {
  width: 15px;
  height: 15px;
}

.text-button {
  gap: 7px;
  min-height: 36px;
  padding: 0 11px;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 650;
}

.text-button:hover {
  background: var(--field-hover);
  color: var(--text);
}

.text-button svg {
  width: 16px;
  height: 16px;
}

.text-button.subtle {
  min-height: 30px;
  padding: 0 8px;
  font-size: 12px;
  color: var(--accent);
}

.primary-button,
.secondary-button {
  min-height: 38px;
  padding: 0 15px;
  border-radius: 11px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -.005em;
}

.primary-button {
  gap: 8px;
  background: var(--accent);
  color: white;
  box-shadow: 0 5px 14px color-mix(in srgb, var(--accent) 22%, transparent), inset 0 1px 0 rgba(255,255,255,.2);
}

.primary-button:hover {
  background: var(--accent-strong);
  box-shadow: 0 7px 18px color-mix(in srgb, var(--accent) 28%, transparent), inset 0 1px 0 rgba(255,255,255,.2);
}

.primary-button svg {
  width: 16px;
  height: 16px;
  stroke-width: 2;
}

.secondary-button {
  border: 1px solid var(--border-strong);
  background: var(--panel-solid);
  color: var(--text);
}

.secondary-button:hover {
  background: var(--field-hover);
}

.theme-moon { display: none; }
:root[data-ui-theme="dark"] .theme-sun { display: none; }
:root[data-ui-theme="dark"] .theme-moon { display: block; }

.workspace {
  display: grid;
  grid-template-columns: var(--left-width) minmax(420px, 1fr) var(--right-width);
  min-height: 0;
  overflow: hidden;
}

.sidebar {
  position: relative;
  z-index: 6;
  min-width: 0;
  min-height: 0;
  background: var(--panel-bg);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
}

.sidebar-left {
  border-right: 1px solid var(--border);
}

.sidebar-right {
  border-left: 1px solid var(--border);
}

.sidebar-scroll {
  height: 100%;
  padding: 18px 16px 28px;
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

.sidebar-scroll::-webkit-scrollbar,
.preset-list::-webkit-scrollbar,
.stage-viewport::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

.sidebar-scroll::-webkit-scrollbar-thumb,
.preset-list::-webkit-scrollbar-thumb,
.stage-viewport::-webkit-scrollbar-thumb {
  border-radius: 99px;
  background: var(--border-strong);
}

.panel-section {
  padding: 2px 0 22px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

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

.section-heading-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.section-heading-row.compact {
  margin-bottom: 12px;
}

.section-heading-row h2,
.modal-header h2 {
  margin: 2px 0 0;
  font-size: 18px;
  line-height: 1.15;
  letter-spacing: -.025em;
}

.eyebrow {
  margin: 0;
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: .095em;
  text-transform: uppercase;
}

.format-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 24px;
  padding: 0 8px;
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 780;
}

.drop-zone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 166px;
  padding: 20px 14px;
  border: 1.5px dashed color-mix(in srgb, var(--accent) 34%, var(--border-strong));
  border-radius: var(--radius-md);
  background:
    linear-gradient(var(--panel-solid), var(--panel-solid)) padding-box,
    radial-gradient(circle at 50% 0%, var(--accent-soft), transparent 60%) border-box;
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  transition: border-color .18s ease, background .18s ease, transform .18s var(--ease), box-shadow .18s ease;
}

.drop-zone::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,.26), transparent 70%);
  transform: translateX(-120%);
  transition: transform .65s var(--ease);
}

.drop-zone:hover,
.drop-zone.is-dragging {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 12px 30px color-mix(in srgb, var(--accent) 10%, transparent);
}

.drop-zone:hover::after {
  transform: translateX(120%);
}

.drop-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 11px;
  border-radius: 13px;
  background: var(--accent-soft);
  color: var(--accent);
}

.drop-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.drop-title {
  font-size: 13px;
  font-weight: 720;
}

.drop-copy {
  margin-top: 4px;
  color: var(--text-tertiary);
  font-size: 11px;
}

.drop-action {
  margin-top: 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.source-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 9px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-subtle);
}

.source-thumb-wrap {
  display: grid;
  place-items: center;
  width: 42px;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: white;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,.06);
}

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

.source-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.source-meta strong {
  overflow: hidden;
  font-size: 12px;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.source-meta span {
  overflow: hidden;
  margin-top: 3px;
  color: var(--text-tertiary);
  font-size: 10px;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-strip {
  display: flex;
  gap: 7px;
  margin-top: 11px;
  padding: 2px 1px 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-strip::-webkit-scrollbar { display: none; }

.page-thumb-button {
  position: relative;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 45px;
  height: 58px;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  background: var(--panel-solid);
  cursor: pointer;
  overflow: hidden;
  box-shadow: 0 2px 5px rgba(0,0,0,.04);
  transition: border-color .16s ease, box-shadow .16s ease, transform .16s var(--ease);
}

.page-thumb-button:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 42%, var(--border-strong));
}

.page-thumb-button.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft), 0 3px 8px rgba(0,0,0,.08);
}

.page-thumb-button canvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-thumb-button span {
  position: absolute;
  right: 3px;
  bottom: 3px;
  display: grid;
  place-items: center;
  min-width: 15px;
  height: 15px;
  padding: 0 3px;
  border-radius: 5px;
  background: rgba(20,20,24,.76);
  color: white;
  font-size: 8px;
  font-weight: 700;
  backdrop-filter: blur(5px);
}

.page-strip-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
  color: var(--text-tertiary);
  font-size: 10px;
}

.switch-row {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  user-select: none;
}

.switch-row input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch-ui {
  position: relative;
  width: 29px;
  height: 17px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--text-tertiary) 32%, transparent);
  transition: background .18s ease;
}

.switch-ui::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 1px 3px rgba(0,0,0,.22);
  transition: transform .18s var(--ease);
}

.switch-row input:checked + .switch-ui {
  background: var(--accent);
}

.switch-row input:checked + .switch-ui::after {
  transform: translateX(12px);
}

.compact-switch {
  font-size: 10px;
  color: var(--text-secondary);
}

.field-group,
.range-field,
.color-field-row {
  margin-top: 14px;
}

.field-group:first-child,
.range-field:first-child,
.color-field-row:first-child {
  margin-top: 0;
}

.field-group > label,
.range-label label,
.color-field-row > label,
.compact-export-grid label {
  display: block;
  margin-bottom: 7px;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 650;
}

.segmented {
  display: grid;
  grid-auto-columns: 1fr;
  grid-auto-flow: column;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field-bg);
}

.segmented button {
  min-width: 0;
  height: 29px;
  padding: 0 8px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 680;
  cursor: pointer;
  transition: background .16s ease, color .16s ease, box-shadow .16s ease;
}

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

.segmented button.is-active {
  background: var(--panel-solid);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,.10), inset 0 0 0 1px rgba(255,255,255,.12);
}

select,
input[type="text"],
input[type="number"] {
  width: 100%;
  height: 36px;
  padding: 0 34px 0 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
  background-color: var(--field-bg);
  color: var(--text);
  font-size: 12px;
  font-weight: 560;
  transition: border-color .16s ease, background .16s ease, box-shadow .16s ease;
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-tertiary) 50%), linear-gradient(135deg, var(--text-tertiary) 50%, transparent 50%);
  background-position: calc(100% - 15px) 15px, calc(100% - 11px) 15px;
  background-size: 4px 4px, 4px 4px;
  background-repeat: no-repeat;
}

select:hover,
input[type="text"]:hover,
input[type="number"]:hover {
  background-color: var(--field-hover);
}

select:focus,
input[type="text"]:focus,
input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.range-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.range-label label {
  margin: 0;
}

.range-label output {
  color: var(--text-tertiary);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  --range-progress: 50%;
  display: block;
  width: 100%;
  height: 16px;
  margin: 0;
  appearance: none;
  border: 0;
  outline: 0;
  background: transparent;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 99px;
  background: linear-gradient(to right, var(--accent) 0 var(--range-progress), var(--field-hover) var(--range-progress) 100%);
}

input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 99px;
  background: var(--field-hover);
}

input[type="range"]::-moz-range-progress {
  height: 4px;
  border-radius: 99px;
  background: var(--accent);
}

input[type="range"]::-webkit-slider-thumb {
  width: 15px;
  height: 15px;
  margin-top: -5.5px;
  appearance: none;
  border: 1px solid rgba(0,0,0,.10);
  border-radius: 50%;
  background: white;
  box-shadow: 0 2px 5px rgba(0,0,0,.20);
  transition: transform .14s var(--ease), box-shadow .14s ease;
}

input[type="range"]::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border: 1px solid rgba(0,0,0,.10);
  border-radius: 50%;
  background: white;
  box-shadow: 0 2px 5px rgba(0,0,0,.20);
}

input[type="range"]:hover::-webkit-slider-thumb,
input[type="range"]:focus-visible::-webkit-slider-thumb {
  transform: scale(1.1);
  box-shadow: 0 2px 7px rgba(0,0,0,.22), 0 0 0 4px var(--accent-soft);
}

.two-column-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.color-field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.color-field-row > label {
  margin: 0;
}

.color-control {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 30px;
  padding: 3px 8px 3px 4px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--field-bg);
}

input[type="color"] {
  width: 24px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  overflow: hidden;
}

input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 5px; }
input[type="color"]::-moz-color-swatch { border: 0; border-radius: 5px; }

.color-control span {
  color: var(--text-tertiary);
  font-size: 10px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.tip-card {
  display: flex;
  gap: 10px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border));
  border-radius: 13px;
  background: linear-gradient(145deg, var(--accent-soft), transparent);
}

.tip-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent);
}

.tip-icon svg { width: 15px; height: 15px; }
.tip-card strong { font-size: 11px; }
.tip-card p { margin: 3px 0 0; color: var(--text-secondary); font-size: 10px; line-height: 1.45; }

.stage-column {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: 42px minmax(0, 1fr) 104px;
  min-width: 0;
  min-height: 0;
  background:
    radial-gradient(circle at 50% 44%, rgba(255,255,255,.7), transparent 42%),
    linear-gradient(145deg, #eef0f4, #e6e8ec);
}

:root[data-ui-theme="dark"] .stage-column {
  background:
    radial-gradient(circle at 50% 42%, rgba(68,72,80,.35), transparent 42%),
    linear-gradient(145deg, #16171a, #111215);
}

.stage-column::before {
  content: "";
  position: absolute;
  inset: 42px 0 104px;
  pointer-events: none;
  opacity: .55;
  background-image: radial-gradient(circle, rgba(74,78,88,.13) .65px, transparent .75px);
  background-size: 11px 11px;
  mask-image: radial-gradient(circle at center, black, transparent 76%);
}

.stage-toolbar {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 11px 0 14px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-bg) 72%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.stage-toolbar-group {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: 600;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 12%, transparent);
}

.stage-format-control {
  margin-left: auto;
}

.stage-format-control label {
  color: var(--text-tertiary);
}

.stage-format-control select {
  width: 172px;
  height: 29px;
  padding-left: 9px;
  font-size: 10px;
  border-radius: 8px;
}

.stage-format-control select {
  background-position: calc(100% - 13px) 12px, calc(100% - 9px) 12px;
}

.zoom-control {
  gap: 1px;
}

.zoom-value {
  min-width: 45px;
  height: 28px;
  padding: 0 4px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}

.zoom-value:hover { background: var(--field-hover); }

.stage-viewport {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  padding: 22px;
  overflow: auto;
  overscroll-behavior: contain;
}

.canvas-shell {
  position: relative;
  flex: 0 0 auto;
  width: min(58vh, 560px);
  aspect-ratio: 4 / 5;
  border-radius: 8px;
  background: white;
  box-shadow: 0 28px 65px rgba(30,36,48,.16), 0 4px 16px rgba(30,36,48,.08);
  overflow: hidden;
  transform-origin: center;
  transition: width .22s var(--ease), height .22s var(--ease), box-shadow .2s ease;
}

:root[data-ui-theme="dark"] .canvas-shell {
  box-shadow: 0 32px 75px rgba(0,0,0,.56), 0 5px 18px rgba(0,0,0,.35);
}

.canvas-shell canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.drop-overlay,
.render-progress {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}

.drop-overlay {
  background: color-mix(in srgb, var(--accent) 78%, transparent);
  color: white;
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
}

.drop-overlay.is-visible {
  opacity: 1;
}

.drop-overlay span {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 12px;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 16px;
  background: rgba(255,255,255,.14);
}

.drop-overlay svg { width: 24px; height: 24px; }
.drop-overlay strong { font-size: 17px; }
.drop-overlay small { margin-top: 5px; opacity: .76; }

.render-progress {
  z-index: 7;
  background: rgba(20,21,25,.72);
  color: white;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.render-progress.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.progress-spinner {
  width: 30px;
  height: 30px;
  margin-bottom: 13px;
  border: 3px solid rgba(255,255,255,.20);
  border-top-color: white;
  border-radius: 50%;
  animation: spin .75s linear infinite;
}

.render-progress strong { font-size: 13px; }
.render-progress span { margin-top: 5px; color: rgba(255,255,255,.68); font-size: 11px; }

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

.preset-dock {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-bg) 78%, transparent);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
}

.preset-dock-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 4px;
}

.preset-dock-label span {
  font-size: 12px;
  font-weight: 740;
}

.preset-dock-label small {
  color: var(--text-tertiary);
  font-size: 9px;
}

.preset-list {
  display: flex;
  gap: 8px;
  min-width: 0;
  padding: 2px 2px 4px;
  overflow-x: auto;
}

.preset-button {
  flex: 0 0 auto;
  width: 82px;
  padding: 3px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: transparent;
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
  transition: transform .16s var(--ease), background .16s ease, border-color .16s ease, color .16s ease;
}

.preset-button:hover {
  transform: translateY(-1px);
  background: var(--field-bg);
  color: var(--text);
}

.preset-button.is-active {
  border-color: color-mix(in srgb, var(--accent) 46%, transparent);
  background: var(--accent-soft);
  color: var(--text);
}

.preset-preview {
  position: relative;
  height: 48px;
  border-radius: 8px;
  background: var(--preset-bg, #edf0f5);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.05);
}

.preset-preview::before,
.preset-preview::after,
.preset-sheet {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 24px;
  height: 34px;
  border-radius: 1.5px;
  background: linear-gradient(#fff 0 15%, #16a8df 15% 19%, #fff 19% 100%);
  box-shadow: 0 5px 10px rgba(0,0,0,.18);
  transform-origin: center;
}

.preset-preview::before { transform: translate(-56%, -48%) rotate(var(--p-rot2, -10deg)); opacity: .7; }
.preset-preview::after { transform: translate(-46%, -52%) rotate(var(--p-rot, -4deg)); }
.preset-preview[data-look="single"]::before { display: none; }
.preset-preview[data-look="topdown"]::before { transform: translate(-52%, -49%) rotate(0deg); opacity: .7; }
.preset-preview[data-look="topdown"]::after { transform: translate(-48%, -51%) rotate(0deg); }
.preset-preview[data-look="fan"]::before { transform: translate(-68%, -45%) rotate(-19deg); }
.preset-preview[data-look="fan"]::after { transform: translate(-36%, -53%) rotate(6deg); }
.preset-preview[data-look="editorial"]::before { transform: translate(-82%, -44%) rotate(-9deg); }
.preset-preview[data-look="editorial"]::after { transform: translate(-18%, -55%) rotate(7deg); }

.preset-button strong {
  display: block;
  margin: 5px 3px 1px;
  overflow: hidden;
  font-size: 9px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-button small {
  display: block;
  margin: 0 3px 2px;
  color: var(--text-tertiary);
  font-size: 8px;
}

.inspector-scroll {
  padding-top: 17px;
}

.inspector-heading {
  align-items: center;
  margin-bottom: 11px;
  padding: 0 2px;
}

.inspector-section {
  border-top: 1px solid var(--border);
}

.inspector-section:last-child {
  border-bottom: 1px solid var(--border);
}

.inspector-section summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 45px;
  list-style: none;
  color: var(--text);
  font-size: 12px;
  font-weight: 720;
  cursor: pointer;
  user-select: none;
}

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

.inspector-section summary svg {
  width: 15px;
  height: 15px;
  color: var(--text-tertiary);
  transition: transform .18s var(--ease);
}

.inspector-section[open] summary svg {
  transform: rotate(180deg);
}

.inspector-content {
  padding: 0 1px 18px;
}

[data-visible-for].is-hidden,
[data-bg-control].is-hidden {
  display: none;
}

.modal-backdrop {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(12, 13, 16, .46);
  backdrop-filter: blur(20px) saturate(125%);
  -webkit-backdrop-filter: blur(20px) saturate(125%);
  animation: fadeIn .18s ease both;
}

.modal-card {
  width: min(920px, 100%);
  max-height: min(760px, calc(100dvh - 40px));
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  background: color-mix(in srgb, var(--panel-solid) 96%, transparent);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalIn .28s var(--ease) both;
}

@keyframes fadeIn { from { opacity: 0; } }
@keyframes modalIn { from { opacity: 0; transform: translateY(12px) scale(.985); } }

.modal-header,
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
}

.modal-header {
  border-bottom: 1px solid var(--border);
}

.modal-footer {
  border-top: 1px solid var(--border);
  background: var(--panel-subtle);
}

.modal-body {
  max-height: calc(min(760px, 100dvh - 40px) - 146px);
  overflow: auto;
}

.export-grid {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 22px;
  padding: 20px;
}

.export-preview-card {
  position: sticky;
  top: 0;
  align-self: start;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel-subtle);
}

.export-preview-card canvas {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: 9px;
  background: white;
  box-shadow: var(--shadow-md);
}

.export-preview-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 11px;
  font-size: 10px;
}

.export-preview-meta span { color: var(--text-tertiary); }
.export-preview-meta strong { font-variant-numeric: tabular-nums; }

.export-settings {
  min-width: 0;
}

.export-block + .export-block {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.export-block-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.export-block h3 {
  margin: 0;
  font-size: 13px;
  letter-spacing: -.01em;
}

.export-block p {
  margin: 4px 0 0;
  color: var(--text-tertiary);
  font-size: 10px;
}

.size-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.size-card {
  position: relative;
  min-height: 74px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--field-bg);
  cursor: pointer;
  transition: border-color .16s ease, background .16s ease, transform .16s var(--ease), box-shadow .16s ease;
}

.size-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  background: var(--field-hover);
}

.size-card.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 10%, transparent);
}

.size-card input {
  position: absolute;
  opacity: 0;
}

.size-check {
  position: absolute;
  top: 8px;
  right: 8px;
  display: grid;
  place-items: center;
  width: 17px;
  height: 17px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--panel-solid);
  color: transparent;
}

.size-card.is-selected .size-check {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.size-check svg { width: 10px; height: 10px; stroke-width: 2.8; }

.size-card strong {
  display: block;
  max-width: calc(100% - 18px);
  font-size: 10px;
  line-height: 1.2;
}

.size-card span:not(.size-check) {
  display: block;
  margin-top: 5px;
  color: var(--text-tertiary);
  font-size: 9px;
  font-variant-numeric: tabular-nums;
}

.size-ratio-icon {
  width: var(--ratio-w, 20px);
  height: var(--ratio-h, 24px);
  margin-top: 8px;
  border: 1px solid color-mix(in srgb, var(--text-tertiary) 50%, transparent);
  border-radius: 2px;
}

.compact-export-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 13px;
}

.compact-export-grid .field-group {
  margin: 0;
}

.compact-export-grid .full-width {
  grid-column: 1 / -1;
}

.compact-export-grid label span {
  float: right;
  color: var(--text-tertiary);
  font-weight: 500;
}

.custom-size-details {
  margin-top: 18px;
  border-top: 1px solid var(--border);
}

.custom-size-details summary {
  padding: 14px 0 4px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 680;
  cursor: pointer;
}

.custom-size-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  align-items: end;
  gap: 8px;
  margin-top: 8px;
}

.custom-size-row label {
  color: var(--text-secondary);
  font-size: 10px;
}

.custom-size-row input {
  margin-top: 6px;
  padding-right: 10px;
}

.custom-size-row > span {
  padding-bottom: 10px;
  color: var(--text-tertiary);
}

.export-summary {
  color: var(--text-secondary);
  font-size: 11px;
}

.modal-actions {
  display: flex;
  gap: 8px;
}

.toast-region {
  position: fixed;
  z-index: 200;
  right: 18px;
  bottom: 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: 360px;
  padding: 10px 13px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel-solid) 94%, transparent);
  color: var(--text);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  font-size: 11px;
  font-weight: 600;
  animation: toastIn .24s var(--ease) both;
}

.toast::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
}

.toast.is-error::before { background: #ff453a; }
.toast.is-leaving { animation: toastOut .2s ease both; }

@keyframes toastIn { from { opacity: 0; transform: translateY(8px) scale(.98); } }
@keyframes toastOut { to { opacity: 0; transform: translateY(6px) scale(.98); } }

body.is-modal-open {
  overflow: hidden;
}

body.is-fullscreen .topbar,
body.is-fullscreen .sidebar,
body.is-fullscreen .preset-dock {
  display: none;
}

body.is-fullscreen .app-shell {
  grid-template-rows: 1fr;
}

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

body.is-fullscreen .stage-column {
  grid-template-rows: 42px minmax(0, 1fr);
  min-height: 100dvh;
}

body.is-fullscreen .stage-column::before {
  inset-bottom: 0;
}

@media (max-width: 1260px) {
  :root {
    --left-width: 260px;
    --right-width: 286px;
  }

  .sidebar-scroll { padding-left: 13px; padding-right: 13px; }
  .privacy-pill span { display: none; }
  .privacy-pill { padding: 7px; }
  .preset-dock { grid-template-columns: 70px minmax(0, 1fr); }
  .preset-button { width: 75px; }
}

@media (max-width: 1080px) {
  :root {
    --left-width: 236px;
    --right-width: 252px;
  }

  .workspace { grid-template-columns: var(--left-width) minmax(360px, 1fr) var(--right-width); }
  .hide-compact { display: none; }
  .stage-format-control label { display: none; }
  .stage-format-control select { width: 150px; }
  .two-column-fields { grid-template-columns: 1fr; gap: 0; }
  .size-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  html,
  body {
    height: auto;
    min-height: 100%;
    overflow: auto;
  }

  .app-shell {
    display: block;
    height: auto;
    min-height: 100dvh;
  }

  .topbar {
    position: sticky;
    top: 0;
    grid-template-columns: 1fr auto;
    height: 58px;
    padding: 0 10px 0 12px;
  }

  .privacy-pill { display: none; }
  .brand-subtitle { display: none; }
  .topbar-actions { grid-column: 2; }
  .topbar-actions .icon-button:not(#themeButton) { display: none; }
  .primary-button { min-height: 36px; }

  .workspace {
    display: flex;
    flex-direction: column;
    overflow: visible;
  }

  .stage-column {
    order: -1;
    height: min(78dvh, 720px);
    min-height: 560px;
    grid-template-rows: 42px minmax(0, 1fr) 92px;
    border-bottom: 1px solid var(--border);
  }

  .sidebar {
    border: 0;
    border-bottom: 1px solid var(--border);
  }

  .sidebar-scroll {
    height: auto;
    padding: 20px max(18px, env(safe-area-inset-left)) 28px;
    overflow: visible;
  }

  .sidebar-left { order: 0; }
  .sidebar-right { order: 1; }
  .stage-toolbar-group:first-child { display: none; }
  .stage-toolbar { justify-content: flex-end; }
  .stage-format-control { margin-left: 0; margin-right: auto; }
  .stage-viewport { padding: 15px; }
  .preset-dock { grid-template-columns: 58px minmax(0, 1fr); padding-left: 8px; padding-right: 8px; }
  .preset-button { width: 72px; }
  .inspector-scroll { padding-top: 20px; }
  .two-column-fields { grid-template-columns: 1fr 1fr; gap: 12px; }
  .modal-card { max-height: calc(100dvh - 20px); border-radius: 19px; }
  .modal-body { max-height: calc(100dvh - 166px); }
  .export-grid { grid-template-columns: 1fr; }
  .export-preview-card { position: relative; display: grid; grid-template-columns: 160px 1fr; align-items: center; gap: 15px; }
  .export-preview-card canvas { width: 160px; }
  .export-preview-meta { flex-direction: column; align-items: flex-start; justify-content: center; margin: 0; }
}

@media (max-width: 600px) {
  .topbar-actions .primary-button span { display: none; }
  .topbar-actions .primary-button { width: 38px; padding: 0; }
  .brand-block { gap: 8px; }
  .app-mark { width: 31px; height: 31px; }
  .stage-column { height: 72dvh; min-height: 500px; }
  .stage-toolbar { padding: 0 8px; }
  .stage-format-control select { width: 132px; }
  .zoom-control .icon-button:nth-child(1),
  .zoom-control .icon-button:nth-child(3),
  .zoom-value { display: none; }
  .preset-dock-label small { display: none; }
  .preset-dock { grid-template-columns: 42px minmax(0, 1fr); }
  .preset-button { width: 68px; }
  .size-grid { grid-template-columns: 1fr 1fr; }
  .compact-export-grid { grid-template-columns: 1fr; }
  .compact-export-grid .full-width { grid-column: auto; }
  .export-preview-card { grid-template-columns: 115px 1fr; }
  .export-preview-card canvas { width: 115px; }
  .modal-backdrop { padding: 8px; }
  .modal-header, .modal-footer { padding: 14px; }
  .export-grid { padding: 14px; gap: 16px; }
  .modal-footer { align-items: stretch; flex-direction: column; }
  .modal-actions { width: 100%; }
  .modal-actions > button { flex: 1; }
  .custom-size-row { grid-template-columns: 1fr auto 1fr; }
  .custom-size-row .text-button { grid-column: 1 / -1; }
  .toast-region { right: 10px; left: 10px; bottom: 10px; align-items: stretch; }
  .toast { max-width: none; }
}

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

.canvas-shell.is-transparent,
.export-preview-card canvas {
  background-color: #f4f5f7;
}

.canvas-shell.is-transparent {
  background-image:
    linear-gradient(45deg, rgba(128, 128, 138, .16) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(128, 128, 138, .16) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(128, 128, 138, .16) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(128, 128, 138, .16) 75%);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
}

.export-preview-card canvas {
  background-image:
    linear-gradient(45deg, rgba(128, 128, 138, .14) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(128, 128, 138, .14) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(128, 128, 138, .14) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(128, 128, 138, .14) 75%);
  background-size: 18px 18px;
  background-position: 0 0, 0 9px, 9px -9px, -9px 0;
}

.export-modal {
  position: relative;
}

.modal-progress {
  position: absolute;
  z-index: 8;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: inherit;
  background: color-mix(in srgb, var(--panel-solid) 78%, transparent);
  color: var(--text);
  backdrop-filter: blur(18px) saturate(120%);
  -webkit-backdrop-filter: blur(18px) saturate(120%);
}

.modal-progress .progress-spinner {
  border-color: color-mix(in srgb, var(--text) 16%, transparent);
  border-top-color: var(--accent);
}

.modal-progress strong {
  font-size: 13px;
}

.modal-progress span {
  margin-top: 5px;
  color: var(--text-tertiary);
  font-size: 11px;
}