:root{color-scheme:dark;--bg: #0f172a;--canvas: #0b1120;--card: #1b2336;--muted: #272f42;--border: #334155;--border-strong: #475569;--fg: #f8fafc;--fg-muted: #94a3b8;--fg-subtle: #64748b;--accent: #3b82f6;--accent-strong: #60a5fa;--on-accent: #ffffff;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--shadow-lg: 0 20px 40px -20px rgba(0, 0, 0, .6), 0 0 0 1px rgba(255, 255, 255, .04);--duration: .16s;--ease: cubic-bezier(.2, 0, 0, 1)}@media(prefers-reduced-motion:reduce){:root{--duration: 0ms}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-sans);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}button,input{font:inherit;color:inherit}kbd{font-family:var(--font-mono);font-size:11px;padding:1px 6px;border-radius:4px;background:var(--muted);border:1px solid var(--border);border-bottom-width:2px;color:var(--fg);white-space:nowrap}:focus-visible{outline:2px solid var(--accent-strong);outline-offset:2px}.app{display:grid;grid-template-rows:56px 1fr;grid-template-columns:320px 1fr;grid-template-areas:"top top" "side stage";height:100dvh}.topbar{grid-area:top;display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:0 var(--space-4) 0 var(--space-5);border-bottom:1px solid var(--border);background:var(--bg)}.brand{display:flex;align-items:center;gap:var(--space-3);min-width:0}.brand__mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--accent) 0%,#8b5cf6 100%);display:grid;place-items:center;color:var(--on-accent);flex:none}.brand__name{font-weight:600;font-size:15px;letter-spacing:-.01em}.brand__tagline{color:var(--fg-muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pill{font-family:var(--font-mono);font-size:11px;padding:2px 8px;border-radius:999px;background:var(--muted);color:var(--fg-muted);border:1px solid var(--border)}.topbar__actions{display:flex;align-items:center;gap:var(--space-2)}.btn{display:inline-flex;align-items:center;gap:var(--space-2);height:34px;padding:0 var(--space-3);border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--card);color:var(--fg);cursor:pointer;transition:background var(--duration) var(--ease),border-color var(--duration) var(--ease);white-space:nowrap}.btn:hover{background:var(--muted);border-color:var(--border-strong)}.btn:active{background:var(--border)}.btn--icon{width:34px;padding:0;justify-content:center}.btn--primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent);font-weight:500}.btn--primary:hover{background:var(--accent-strong);border-color:var(--accent-strong)}.btn--primary code{font-family:var(--font-mono);font-size:12px}.zoom{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);overflow:hidden}.zoom .btn{border:0;border-radius:0;background:transparent}.zoom__value{font-family:var(--font-mono);font-size:12px;min-width:52px;text-align:center;font-variant-numeric:tabular-nums;color:var(--fg)}.sidebar{grid-area:side;border-right:1px solid var(--border);overflow-y:auto;display:flex;flex-direction:column;background:var(--bg)}.section{padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:var(--space-3)}.section__title{display:flex;align-items:center;justify-content:space-between;margin:0;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--fg-subtle)}.toggle{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);min-height:32px;cursor:pointer}.toggle__label{display:flex;flex-direction:column}.toggle__hint{color:var(--fg-muted);font-size:12px}.switch{position:relative;width:36px;height:20px;flex:none}.switch input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer}.switch__track{position:absolute;inset:0;border-radius:999px;background:var(--border);transition:background var(--duration) var(--ease)}.switch__track:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:var(--fg);transition:transform var(--duration) var(--ease)}.switch input:checked+.switch__track{background:var(--accent)}.switch input:checked+.switch__track:after{transform:translate(16px)}.switch input:focus-visible+.switch__track{outline:2px solid var(--accent-strong);outline-offset:2px}.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-2) var(--space-3)}.field{display:flex;align-items:center;height:34px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);overflow:hidden;transition:border-color var(--duration) var(--ease)}.field:focus-within{border-color:var(--accent)}.field__label{width:30px;text-align:center;font-family:var(--font-mono);font-size:11px;color:var(--fg-subtle);border-right:1px solid var(--border);align-self:stretch;display:grid;place-items:center}.field input{flex:1;min-width:0;height:100%;padding:0 var(--space-2);border:0;background:transparent;font-family:var(--font-mono);font-size:12px;font-variant-numeric:tabular-nums;outline:none;appearance:textfield}.field input::-webkit-inner-spin-button,.field input::-webkit-outer-spin-button{appearance:none}.field--wide{grid-column:1 / -1}.empty{color:var(--fg-muted);font-size:13px;margin:0}.log{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--space-1);font-family:var(--font-mono);font-size:12px}.log li{display:flex;align-items:center;gap:var(--space-2);min-height:24px;color:var(--fg-muted)}.tag{padding:1px 6px;border-radius:4px;font-size:11px;border:1px solid transparent}.tag--move{color:#93c5fd;background:#3b82f61f;border-color:#3b82f64d}.tag--resize{color:#c4b5fd;background:#8b5cf61f;border-color:#8b5cf64d}.tag--rotate{color:#fcd34d;background:#f59e0b1f;border-color:#f59e0b4d}.tag--end{color:#86efac}.tag--cancel{color:#fca5a5}.tag--start{color:var(--fg-subtle)}.shortcuts{display:grid;grid-template-columns:auto 1fr;gap:var(--space-2) var(--space-3);align-items:center;font-size:13px;color:var(--fg-muted);margin:0}.shortcuts dt{display:flex;gap:var(--space-1);justify-content:flex-end}.shortcuts dd{margin:0}.stage{grid-area:stage;position:relative;overflow:hidden;background:var(--canvas)}.stage[data-dragging=true]{cursor:grabbing}.viewport{position:absolute;left:0;top:0;transform-origin:0 0;width:4000px;height:4000px;background-image:radial-gradient(rgba(148,163,184,.28) 1px,transparent 1.2px);background-size:24px 24px;background-position:12px 12px}.layer{border-radius:var(--radius-md);background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow-lg);color:var(--fg);cursor:grab;outline:none;-webkit-user-select:none;user-select:none;transition:border-color var(--duration) var(--ease)}.layer:hover{border-color:var(--border-strong)}.layer[data-selected=true]{border-color:var(--accent)}.layer[data-active=true]{cursor:grabbing}.layer:focus-visible{outline:2px solid var(--accent-strong);outline-offset:3px}.layer__body{position:absolute;inset:0;overflow:hidden;border-radius:inherit;padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-2)}.layer__title{font-weight:600;font-size:13px}.layer__text{margin:0;color:var(--fg-muted);font-size:13px}.layer__input{height:32px;padding:0 var(--space-2);border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);color:var(--fg);cursor:text}.layer__input:focus{border-color:var(--accent);outline:none}.layer__cta{margin-top:auto;align-self:flex-start;height:30px;padding:0 var(--space-3);border-radius:var(--radius-sm);border:0;background:var(--accent);color:var(--on-accent);font-weight:500;cursor:pointer}.layer--image .layer__body{padding:0;background:radial-gradient(120% 80% at 20% 10%,rgba(139,92,246,.7),transparent 60%),radial-gradient(100% 90% at 90% 90%,rgba(59,130,246,.8),transparent 60%),linear-gradient(160deg,#1e293b,#0f172a);align-items:center;justify-content:center;color:#f8fafcb3}.layer--note .layer__body{background:linear-gradient(180deg,#f59e0b29,#f59e0b0f)}.handle{position:absolute;width:24px;height:24px;transform:translate(-50%,-50%);display:grid;place-items:center}.handle:after{content:"";width:10px;height:10px;border-radius:3px;background:var(--fg);border:1.5px solid var(--accent);box-shadow:0 1px 3px #00000080;transition:transform var(--duration) var(--ease)}.handle:hover:after{transform:scale(1.2)}.handle[data-frameable-handle=n]{left:50%;top:0;cursor:ns-resize}.handle[data-frameable-handle=s]{left:50%;top:100%;cursor:ns-resize}.handle[data-frameable-handle=e]{left:100%;top:50%;cursor:ew-resize}.handle[data-frameable-handle=w]{left:0;top:50%;cursor:ew-resize}.handle[data-frameable-handle=ne]{left:100%;top:0;cursor:nesw-resize}.handle[data-frameable-handle=sw]{left:0;top:100%;cursor:nesw-resize}.handle[data-frameable-handle=nw]{left:0;top:0;cursor:nwse-resize}.handle[data-frameable-handle=se]{left:100%;top:100%;cursor:nwse-resize}.rotate{position:absolute;left:50%;top:-30px;width:28px;height:28px;transform:translate(-50%,-50%);display:grid;place-items:center;cursor:crosshair}.rotate:before{content:"";position:absolute;left:50%;top:100%;width:1px;height:16px;margin-top:-6px;background:var(--accent)}.rotate:after{content:"";width:12px;height:12px;border-radius:50%;background:var(--fg);border:1.5px solid var(--accent);box-shadow:0 1px 3px #00000080}.badge{position:absolute;left:50%;top:calc(100% + 12px);transform:translate(-50%);padding:3px 8px;border-radius:4px;background:var(--accent);color:var(--on-accent);font-family:var(--font-mono);font-size:11px;font-variant-numeric:tabular-nums;white-space:nowrap;pointer-events:none}.statusbar{position:absolute;left:0;right:0;bottom:0;display:flex;align-items:center;gap:var(--space-4);padding:0 var(--space-4);height:32px;border-top:1px solid var(--border);background:#0f172ad9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-family:var(--font-mono);font-size:11px;color:var(--fg-muted);font-variant-numeric:tabular-nums}.statusbar__hint{margin-left:auto;font-family:var(--font-sans);font-size:12px;display:flex;align-items:center;gap:var(--space-2)}.statusbar strong{color:var(--fg);font-weight:500}@media(max-width:900px){.app{grid-template-columns:1fr;grid-template-rows:56px 1fr minmax(0,38vh);grid-template-areas:"top" "stage" "side"}.sidebar{border-right:0;border-top:1px solid var(--border)}.brand__tagline,.statusbar__hint,.topbar__cta{display:none}}