:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #17191e;
  --panel: #20232a;
  --panel-2: #282c34;
  --line: #343944;
  --muted: #9da6b5;
  --text: #eef2f7;
  --accent: #4f8cff;
  --accent-2: #6ea0ff;
  --danger: #ef5f6c;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body, #app { width: 100%; height: 100%; margin: 0; overflow: hidden; background: var(--bg); color: var(--text); }
button, input, select, textarea { font: inherit; color: inherit; }
button { border: 0; cursor: pointer; }
button:disabled { opacity: .45; cursor: default; }
.app-shell { display: grid; grid-template-rows: 44px 42px minmax(0, 1fr); }
.topbar, .optionsbar { display: flex; align-items: center; border-bottom: 1px solid var(--line); background: #1d2026; }
.topbar { padding: 0 10px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; min-width: 126px; }
.icon-defs { position: absolute; width: 0; height: 0; overflow: hidden; pointer-events: none; }
.brand-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; overflow: hidden; background: #151923; box-shadow: 0 4px 14px #0005; }
.brand-mark img { display: block; width: 100%; height: 100%; }
.ui-icon, .tool-icon { display: block; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.ui-icon { width: 17px; height: 17px; }
.tool-icon { width: 21px; height: 21px; }
.brand-name { letter-spacing: .2px; white-space: nowrap; }
.menu-bar { display: flex; align-items: center; gap: 1px; }
.menu-button, .icon-button, .panel-actions button, .layer-order-actions button, .zoom-controls button { background: transparent; border-radius: 6px; padding: 7px 9px; }
.menu-button:hover, .icon-button:hover, .panel-actions button:hover, .layer-order-actions button:hover, .zoom-controls button:hover { background: #ffffff12; }
.menu-button.active, .menu-button[aria-expanded="true"] { background: #ffffff18; color: #fff; }
.menu-button:focus-visible, .tool:focus-visible, .icon-button:focus-visible, .primary-button:focus-visible, .option-icon-button:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 1px; }
.document-title { flex: 1; min-width: 0; text-align: center; color: #cfd6e2; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.top-actions { display: flex; align-items: center; gap: 4px; }
.primary-button { background: var(--accent); padding: 8px 14px; border-radius: 7px; font-weight: 650; }
.primary-button:hover { background: var(--accent-2); }
.optionsbar { padding: 5px 10px; gap: 10px; overflow-x: auto; white-space: nowrap; }
.option-group { display: inline-flex; gap: 6px; align-items: center; color: #cbd2de; font-size: 13px; }
.option-group input[type="range"] { width: 96px; }
.option-group input[type="number"], .option-group select, .layers-toolbar select { background: #111318; border: 1px solid var(--line); border-radius: 5px; padding: 4px 6px; }
.option-group input[type="number"] { width: 66px; }
.move-options { gap: 5px; }
.snap-toggle { min-height: 28px; display: inline-flex; align-items: center; gap: 6px; padding: 0 4px; border-radius: 5px; cursor: pointer; }
.snap-toggle:hover { background: #ffffff0a; }
.snap-toggle input { margin: 0; accent-color: var(--accent); }
.option-divider { width: 1px; height: 20px; margin: 0 2px; background: var(--line); }
.option-caption { color: var(--muted); font-size: 11px; }
.option-icon-button { width: 30px; height: 28px; display: inline-grid; place-items: center; padding: 0; border: 1px solid transparent; border-radius: 5px; background: transparent; color: #cbd4e1; }
.option-icon-button:hover:not(:disabled) { background: #ffffff0e; border-color: #3d4655; color: #fff; }
.option-icon-button:active:not(:disabled) { background: #4f8cff28; border-color: #4f8cff66; }
.option-icon-button:disabled { opacity: .35; cursor: not-allowed; }
.workspace { display: grid; grid-template-columns: 86px minmax(0, 1fr) 286px; min-height: 0; }
.toolbar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 40px; align-content: start; gap: 4px; padding: 7px; background: #1c1f25; border-right: 1px solid var(--line); overflow-y: auto; min-height: 0; scrollbar-width: thin; }
.tool { position: relative; min-width: 32px; min-height: 40px; display: grid; place-items: center; border-radius: 8px; background: transparent; color: #c9d1dd; font-size: 17px; }
.tool small { position: absolute; right: 3px; bottom: 1px; max-width: 18px; overflow: hidden; font-size: 8px; line-height: 1; color: var(--muted); }
.tool:hover { background: #ffffff10; }
.tool.active { background: #4f8cff2c; color: #f4f8ff; outline: 1px solid #4f8cff88; }
.tool-tooltip { position: fixed; z-index: 1000; width: min(310px, calc(100vw - 20px)); padding: 11px 12px 10px; border: 1px solid #556176; border-radius: 9px; background: #11151df5; color: #edf3ff; box-shadow: 0 12px 32px #000a; pointer-events: none; white-space: normal; }
.tool-tooltip strong { display: block; margin-bottom: 5px; color: #fff; font-size: 13px; }
.tool-tooltip span { display: block; color: #c5cfde; font-size: 12px; line-height: 1.42; }
.tool-tooltip kbd { display: inline-block; margin-top: 8px; padding: 2px 6px; border: 1px solid #556176; border-bottom-color: #77849a; border-radius: 5px; background: #242b37; color: #9fc0ff; font: 600 10px/1.4 inherit; }
.developer-card { display: grid; gap: 5px; margin-top: 16px; padding: 12px 14px; border: 1px solid #3d4657; border-radius: 9px; background: #181c24; }
.developer-card > span { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.developer-card > strong { margin-bottom: 2px; color: #fff; }
.developer-card a { width: fit-content; color: #8fb5ff; text-decoration: none; }
.developer-card a:hover { color: #b7d0ff; text-decoration: underline; }
.developer-card a:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; border-radius: 2px; }
.toolbar-spacer { grid-column: 1 / -1; min-height: 0; }
.color-chip { grid-column: 1 / -1; width: 34px; height: 34px; border: 2px solid #dce4ef; border-radius: 8px; margin: 5px auto 2px; background: #4f8cff; box-shadow: 0 0 0 1px #000; }
@media (max-width: 900px) {
  .workspace { grid-template-columns: 50px minmax(0, 1fr) 250px; }
  .toolbar { grid-template-columns: 1fr; grid-auto-rows: 38px; padding: 6px; gap: 3px; }
  .toolbar-spacer, .color-chip { grid-column: 1; }
}
.stage-panel { min-width: 0; min-height: 0; display: grid; grid-template-rows: 36px minmax(0,1fr) 34px; background: #111318; }
.stage-tabs, .statusbar { display: flex; align-items: center; padding: 0 10px; background: #1c1f25; border-bottom: 1px solid var(--line); font-size: 12px; }
.stage-tabs { justify-content: space-between; gap: 10px; }
.doc-tabs-wrap { flex: 1; min-width: 0; display: flex; align-items: flex-end; gap: 6px; overflow: hidden; }
.doc-tabs-strip { flex: 0 1 auto; width: max-content; max-width: calc(100% - 30px); min-width: 0; display: flex; align-items: flex-end; gap: 6px; overflow-x: auto; overflow-y: hidden; scrollbar-width: thin; }
.doc-tab-shell { flex: 0 0 auto; min-width: 0; max-width: 240px; display: flex; align-items: center; gap: 2px; background: #282c34; border: 1px solid transparent; border-bottom: 0; border-radius: 6px 6px 0 0; }
.doc-tab-shell.active { background: #313744; border-color: #485164; box-shadow: inset 0 1px 0 #5f6b83; }
.doc-tab { min-width: 0; max-width: 200px; background: transparent; padding: 7px 10px; color: #dbe3ef; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.doc-tab[aria-selected="true"] { color: #fff; }
.doc-tab-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-tab-close, .doc-tab-add { flex: 0 0 auto; display: grid; place-items: center; min-width: 24px; height: 24px; padding: 0; border-radius: 6px; color: #cdd5e2; }
.doc-tab-close { margin-right: 4px; background: transparent; font-size: 15px; }
.doc-tab-close:hover, .doc-tab-add:hover { background: #ffffff16; }
.doc-tab-close:focus-visible, .doc-tab-add:focus-visible, .doc-tab:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 1px; }
.doc-tab-add { align-self: center; background: #282c34; border: 1px solid #394150; font-size: 16px; }
.dirty-dot { color: var(--accent); margin-left: 6px; font-size: 8px; }
.stage-meta { color: var(--muted); display: flex; gap: 7px; flex: 0 0 auto; }
.stage-viewport { position: relative; overflow: auto; background-color: #121419; background-image: radial-gradient(#343944 1px, transparent 1px); background-size: 18px 18px; outline: none; }
.canvas-shell { position: relative; margin: 44px auto; transform-origin: top left; box-shadow: 0 15px 50px #000a, 0 0 0 1px #ffffff15; background-color: #252a31; background-image: linear-gradient(45deg,#30363f 25%,transparent 25%),linear-gradient(-45deg,#30363f 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#30363f 75%),linear-gradient(-45deg,transparent 75%,#30363f 75%); background-size: 24px 24px; background-position: 0 0,0 12px,12px -12px,-12px 0; }
.canvas-shell canvas { position: absolute; inset: 0; width: 100%; height: 100%; image-rendering: auto; }
#editorCanvas { background: transparent; }
#overlayCanvas { touch-action: none; }
.empty-drop { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; pointer-events: none; color: var(--muted); gap: 6px; }
.empty-drop strong { color: #dce6f7; font-size: 15px; }
.empty-drop small { color: #778396; }
.statusbar { border-top: 1px solid var(--line); border-bottom: 0; gap: 14px; color: var(--muted); }
#statusText { flex: 1; color: #cfd6e2; }
.zoom-controls { display: flex; align-items: center; gap: 4px; }
.zoom-controls input { width: 120px; }
.zoom-controls button { color: #d9e0ea; padding: 4px 7px; }
.right-panel { min-height: 0; overflow: auto; background: #1b1e24; border-left: 1px solid var(--line); padding: 6px; display: flex; flex-direction: column; gap: 7px; }
.panel-card { background: #21252c; border: 1px solid #303540; border-radius: 8px; overflow: hidden; }
.panel-card > header { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 6px; padding: 0 6px; background: #262a32; border-bottom: 1px solid var(--line); font-size: 12px; }
.panel-toggle { flex: 1; min-width: 0; min-height: 32px; display: flex; align-items: center; gap: 6px; padding: 0 3px; background: transparent; color: inherit; text-align: left; }
.panel-toggle:hover { color: #fff; }
.panel-toggle:focus-visible, .prop-section-toggle:focus-visible { outline: 2px solid var(--accent-2); outline-offset: -1px; border-radius: 5px; }
.panel-toggle-icon { display: inline-block; width: 12px; color: #9eabba; transform-origin: 50% 50%; transition: transform .12s ease; }
.panel-card.is-collapsed > header { border-bottom-color: transparent; }
.panel-card.is-collapsed > :not(header) { display: none !important; }
.panel-card.is-collapsed .panel-toggle-icon { transform: rotate(-90deg); }
.panel-card.is-collapsed { min-height: 0; flex: 0 0 auto; }
.panel-actions { display: flex; align-items: center; gap: 2px; }
.panel-content { padding: 9px; }
.muted { color: var(--muted); font-size: 12px; }
.properties-panel { flex: 0 0 auto; }
.effects-panel { flex: 0 0 auto; }
.layers-panel { min-height: 260px; flex: 1 1 auto; display: flex; flex-direction: column; }
.history-panel { flex: 0 0 160px; min-height: 110px; }
.layers-toolbar { display: flex; gap: 7px; align-items: center; padding: 7px; font-size: 11px; border-bottom: 1px solid var(--line); }
.layers-toolbar select { min-width: 100px; max-width: 130px; }
.layers-toolbar input { width: 78px; }
.layers-list, .history-list { overflow: auto; }
.layers-list { flex: 1; min-height: 130px; }
.layers-list.drop-root { outline: 1px dashed var(--accent-2); outline-offset: -4px; background: #315dbe14; }
.layer-row, .layer-group-row { display: grid; align-items: center; gap: 5px; min-height: 42px; padding: 4px 7px; border-bottom: 1px solid #2d323b; cursor: default; }
.layer-row { grid-template-columns: 24px 35px minmax(0,1fr) 24px; }
.layer-group-row { grid-template-columns: 24px 24px 35px minmax(0,1fr) 24px 24px; }
.layer-row:hover, .layer-group-row:hover { background: #ffffff09; }
.layer-row.selected { background: #3f72d62c; outline: 1px solid #4f8cff55; outline-offset: -1px; }
.layer-row:focus-visible, .layer-group-row:focus-visible { outline: 2px solid var(--accent-2); outline-offset: -2px; }
.layer-row.in-group { padding-left: 24px; background-image: linear-gradient(90deg, transparent 0 14px, #39404a 14px 15px, transparent 15px); }
.layer-row.in-group:hover { background-color: #ffffff09; }
.layer-row.dragging { opacity: .45; }
.layer-row.drop-before { box-shadow: inset 0 2px 0 var(--accent-2); }
.layer-row.drop-after { box-shadow: inset 0 -2px 0 var(--accent-2); }
.layer-group-row { background: #232832; font-weight: 600; }
.layer-row.group-hidden .layer-thumb, .layer-row.group-hidden .layer-name { opacity: .45; }
.layer-group-row.group-hidden .layer-group-thumb, .layer-group-row.group-hidden .layer-group-name { opacity: .55; }
.layer-row.group-locked .layer-name { color: #aeb7c4; }
.layer-group-row.drop-into { background: #315dbe3d; outline: 1px solid var(--accent-2); outline-offset: -1px; }
.layer-group-toggle, .layer-group-remove { background: transparent; color: #c6ced9; padding: 3px; min-width: 24px; min-height: 24px; }
.layer-group-toggle { font-size: 13px; }
.layer-group-remove { font-size: 18px; line-height: 1; opacity: .72; }
.layer-group-remove:hover { opacity: 1; color: #fff; }
.layer-group-thumb { background: #222b3d; color: #8fb2ff; font-size: 15px; }
.layer-group-name { color: #e8edf5; background: transparent; padding: 0; text-align: left; font: inherit; min-width: 0; }
.layer-thumb { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 4px; background: #15171b; border: 1px solid #3a404a; font-size: 12px; color: #c9d0da; overflow: hidden; }
.layer-thumb img { width: 100%; height: 100%; object-fit: cover; }
.layer-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.layer-eye, .layer-lock { background: transparent; color: #c6ced9; padding: 3px; min-width: 24px; min-height: 24px; }
.layer-lock:disabled { opacity: .65; cursor: not-allowed; }
.layer-order-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; padding: 6px; border-top: 1px solid var(--line); }
.layer-order-actions button { background: #2b3038; font-size: 11px; }
.history-row { padding: 6px 9px; border-bottom: 1px solid #2d323b; font-size: 11px; color: #bac2ce; }
.history-row.current { color: white; background: #ffffff0b; }
.prop-grid { display: grid; grid-template-columns: 76px minmax(0,1fr); gap: 7px 8px; align-items: center; font-size: 11px; }
.prop-grid label { color: var(--muted); }
.prop-grid input, .prop-grid select, .prop-grid textarea { width: 100%; background: #15171b; border: 1px solid var(--line); border-radius: 5px; padding: 5px 6px; }
.prop-grid textarea { min-height: 72px; resize: vertical; }
.prop-grid .wide { grid-column: 1 / -1; }
.menu-popover { position: fixed; z-index: 100; min-width: 238px; background: #252932; border: 1px solid #434957; border-radius: 8px; padding: 5px; box-shadow: 0 14px 35px #000a; }
.menu-item { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: transparent; padding: 8px 9px; border-radius: 5px; text-align: left; font-size: 12px; }
.menu-item:hover { background: #ffffff10; }
.menu-item:focus-visible { outline: 1px solid var(--accent-2); background: #ffffff10; }
.menu-item:disabled { color: #697386; }
.menu-sep { border-top: 1px solid var(--line); margin: 5px 0; }
.menu-shortcut { color: var(--muted); font-size: 10px; }
.modal-backdrop { position: fixed; inset: 0; z-index: 200; background: #0009; display: grid; place-items: center; padding: 18px; }
.modal { width: min(480px, 95vw); max-height: 90vh; overflow: auto; background: #242830; border: 1px solid #464d5a; border-radius: 12px; box-shadow: 0 20px 70px #000c; }
.modal header { padding: 14px 16px; font-weight: 700; border-bottom: 1px solid var(--line); }
.modal-body { padding: 16px; display: grid; gap: 12px; }
.modal-row { display: grid; grid-template-columns: 120px minmax(0,1fr); gap: 10px; align-items: center; font-size: 13px; }
.modal-row input, .modal-row select, .modal-row textarea { width: 100%; background: #15171b; border: 1px solid #3a404b; padding: 8px; border-radius: 6px; }
.modal-row textarea { min-height: 110px; resize: vertical; }
.info-modal { color: #d5dce8; font-size: 13px; line-height: 1.55; }
.shortcut-list { display: grid; grid-template-columns: auto minmax(0,1fr); gap: 8px 16px; align-items: baseline; }
.shortcut-list b { color: #fff; white-space: nowrap; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.about-copy p { margin: 8px 0 0; color: #b9c2d0; }
.about-copy code { background: #15171b; border: 1px solid #353b46; border-radius: 4px; padding: 1px 5px; }
.modal footer { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--line); }
.secondary-button { background: #333843; padding: 8px 12px; border-radius: 6px; }
.danger-button { background: #7a3038; padding: 8px 12px; border-radius: 6px; }
.drop-active { outline: 3px solid var(--accent); outline-offset: -3px; }
.drop-overlay { position: fixed; inset: 0; z-index: 500; display: grid; place-items: center; pointer-events: none; background: #0b1020bb; backdrop-filter: blur(2px); }
.drop-overlay-card { width: min(620px, calc(100vw - 40px)); padding: 30px; border: 2px dashed #79a7ff; border-radius: 18px; background: #1e2532ee; box-shadow: 0 24px 80px #000b; text-align: center; display: grid; gap: 10px; }
.drop-overlay-card strong { font-size: 20px; color: #fff; }
.drop-overlay-card span { color: #b8c6df; font-size: 13px; }
.toast-region { position: fixed; right: 18px; bottom: 48px; z-index: 600; display: grid; gap: 8px; pointer-events: none; }
.toast { min-width: 240px; max-width: min(420px, calc(100vw - 36px)); padding: 10px 12px; border-radius: 9px; border: 1px solid #465268; background: #242b37f2; color: #eef4ff; box-shadow: 0 10px 35px #0008; font-size: 12px; animation: toast-in .16s ease-out; }
.toast.error { border-color: #a54f5a; background: #48272df2; }
.toast.warn { border-color: #9a7839; background: #44371ff2; }
.toast.success { border-color: #437b61; background: #223b31f2; }
@keyframes toast-in { from { transform: translateY(8px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.workspace.panels-hidden { grid-template-columns: minmax(0, 1fr); }
.workspace.panels-hidden .toolbar, .workspace.panels-hidden .right-panel { display: none; }
@media (max-width: 900px) {
  .workspace { grid-template-columns: 44px minmax(0,1fr) 220px; }
  .brand-name, .document-title { display: none; }
  .brand { min-width: auto; }
  .right-panel { padding: 4px; }
}
@media (max-width: 680px) {
  .workspace { grid-template-columns: 44px minmax(0,1fr); }
  .right-panel { display: none; }
  .menu-bar .menu-button:nth-child(n+4) { display: none; }
}
.fatal-error { position: fixed; left: 50%; top: 18px; transform: translateX(-50%); z-index: 1000; max-width: min(760px, calc(100vw - 32px)); padding: 12px 16px; border: 1px solid #b4535e; border-radius: 10px; background: #4a252cf2; color: #fff; box-shadow: 0 14px 45px #0009; font: 13px/1.45 system-ui, sans-serif; }

/* History rows are interactive state buttons, not passive labels. */
.history-row { width: 100%; border: 0; border-bottom: 1px solid #2d323b; background: transparent; text-align: left; cursor: pointer; font: inherit; }
.history-row:hover:not(:disabled) { background: #ffffff10; color: #eef3fb; }
.history-row:disabled { opacity: 1; cursor: default; }

/* Color correction */
.prop-effects-grid { display: grid; grid-template-columns: 92px minmax(0,1fr); gap: 7px 8px; align-items: center; font-size: 11px; }
.prop-effects-grid > label { color: var(--muted); line-height: 1.2; }
.prop-effect-group { grid-column: 1 / -1; margin-top: 3px; padding-top: 5px; border-top: 1px solid #303641; color: #cfd6e2; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.prop-effect-group:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.panel-actions .mini-button, .mini-button { background: #303641; border: 1px solid #424a57; border-radius: 5px; padding: 4px 7px; font-size: 10px; color: #dbe3ef; }
.panel-actions .mini-button:hover, .mini-button:hover { background: #39414e; }
.mini-button:focus-visible, .secondary-button:focus-visible, .danger-button:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 1px; }
.range-with-value { display: grid; grid-template-columns: minmax(0,1fr) 52px; gap: 6px; align-items: center; min-width: 0; }
.prop-grid .range-with-value input[type="range"], .prop-effects-grid .range-with-value input[type="range"] { padding: 0; border: 0; background: transparent; min-width: 0; }
.range-with-value output { color: #c7d0dd; font-size: 10px; text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.color-correction-modal { width: min(620px, 96vw); }
.color-correction-body { gap: 8px; }
.color-correction-hint { margin: 0 0 4px; line-height: 1.45; }
.color-correction-group { margin-top: 6px; padding-top: 9px; border-top: 1px solid var(--line); color: #e3e9f2; font-size: 12px; font-weight: 700; }
.color-correction-row { display: grid; grid-template-columns: 140px minmax(150px,1fr) 72px; gap: 10px; align-items: center; min-height: 32px; font-size: 12px; }
.color-correction-row > span { color: #c3ccd9; }
.color-correction-row input[type="range"] { width: 100%; }
.color-correction-row output { color: #eef2f7; text-align: right; font-variant-numeric: tabular-nums; }
.modal-footer-spacer { flex: 1; }
@media (max-width: 620px) {
  .color-correction-row { grid-template-columns: 110px minmax(100px,1fr) 58px; gap: 7px; }
}