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24px;font-size:var(--text-base);min-height:52px;border-radius:var(--radius-lg)}.btn--primary{background:var(--color-accent);color:var(--color-on-accent);box-shadow:var(--shadow-sm)}.btn--primary:hover:not(:disabled){background:var(--color-accent-hover);box-shadow:var(--shadow-accent)}.btn--primary:active:not(:disabled){background:var(--color-accent-press)}.btn--secondary{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border-strong);box-shadow:var(--shadow-sm)}.btn--secondary:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent)}.btn--ghost{background:transparent;color:var(--color-text-muted)}.btn--ghost:hover:not(:disabled){background:var(--color-surface-2);color:var(--color-text)}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;min-width:40px;padding:0;color:var(--color-text-muted);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:transform var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out),background-color var(--dur-fast) var(--ease-out),border-color var(--dur-fast) var(--ease-out)}.icon-btn:hover:not(:disabled){color:var(--color-accent);border-color:var(--color-accent);background:var(--color-accent-soft)}.icon-btn:active:not(:disabled){transform:scale(.92)}.icon-btn:disabled{opacity:.4;cursor:not-allowed}@media (pointer: coarse){.icon-btn{width:44px;height:44px;min-width:44px}}.panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.dev-credit{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--color-text-muted);font-size:var(--text-sm);transition:color var(--dur-fast) var(--ease-out)}.dev-credit:hover{color:var(--color-accent)}.dev-credit strong{font-weight:var(--weight-semibold);color:var(--color-text)}.dev-credit:hover strong{color:var(--color-accent)}.landing{--gutter: clamp(var(--space-4), 5vw, var(--space-8));--content: 1180px;--ink: var(--color-text);position:relative;min-height:100%;display:flex;flex-direction:column;overflow-x:clip;background:var(--color-bg)}.landing__nav,.landing main>section,.landing__footer{position:relative;z-index:1;padding-inline:max(var(--gutter),calc((100% - var(--content)) / 2))}.pixel-field{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}.landing__grid{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;background-image:linear-gradient(to right,rgba(31,36,48,.045) 1px,transparent 1px),linear-gradient(to bottom,rgba(31,36,48,.045) 1px,transparent 1px);background-size:28px 28px;-webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 85%);mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 85%)}.landing__nav{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding-top:calc(var(--space-4) + var(--safe-top));padding-bottom:var(--space-4);background:color-mix(in srgb,var(--color-bg) 78%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.brand{display:inline-flex;align-items:center;gap:var(--space-3);font-family:var(--font-pixel);font-size:var(--text-xl);font-weight:700;letter-spacing:.01em;color:var(--ink)}.brand--sm{font-size:var(--text-lg)}.brand__accent{color:var(--color-accent)}.brand__mark{display:grid;grid-template-columns:repeat(2,11px);gap:2px}.brand__mark i{width:11px;height:11px;background:#e50000;transition:translate var(--dur-base) var(--ease-spring)}.brand__mark i:nth-child(2){background:#e5d900}.brand__mark i:nth-child(3){background:#0083c7}.brand__mark i:nth-child(4){background:#02be01}@media (hover: hover){.brand:hover .brand__mark i:nth-child(1){translate:-2px 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var(--ink);border-radius:6px;box-shadow:var(--shadow-pixel-lg);overflow:hidden;transition:box-shadow var(--dur-base) var(--ease-out),translate var(--dur-base) var(--ease-out)}@media (hover: hover){.preview-frame:hover{translate:-3px -3px;box-shadow:10px 10px 0 var(--ink)}}.preview-frame__bar{display:flex;align-items:center;gap:6px;padding:8px 10px;border-bottom:2px solid var(--ink);background:var(--color-bg-tint)}.preview-frame__bar span{width:10px;height:10px;border:2px solid var(--ink);background:var(--color-surface)}.preview-frame__bar span:nth-child(1){background:#e50000}.preview-frame__bar span:nth-child(2){background:#e5d900}.preview-frame__bar span:nth-child(3){background:#02be01}.preview-frame__bar em{margin-left:var(--space-2);font-style:normal;font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.canvas-preview{position:relative;aspect-ratio:1;width:100%;background:#fff;cursor:crosshair;touch-action:manipulation}.canvas-preview__canvas{display:block;width:100%;height:100%;image-rendering:pixelated}.canvas-preview__cursor{position:absolute;top:0;left:0;display:flex;align-items:flex-start;pointer-events:none;opacity:0;transition:opacity var(--dur-slow) var(--ease-out);will-change:transform}.canvas-preview__cursor svg{fill:var(--player);stroke:#fff;stroke-width:1.5;filter:drop-shadow(1px 1px 0 rgba(31,36,48,.5))}.canvas-preview__cursor span{margin:12px 0 0 -2px;padding:2px 6px;background:var(--player);color:#fff;font-family:var(--font-pixel);font-size:10px;line-height:1.3;border:1.5px solid #fff}.mini-palette{width:min(460px,100%);display:grid;grid-template-columns:repeat(16,1fr);gap:4px}.mini-palette__swatch{aspect-ratio:1;min-width:0;padding:0;border:2px solid var(--ink);border-radius:2px;cursor:pointer;transition:translate var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out)}.mini-palette__swatch:hover{translate:0 -2px}.mini-palette__swatch[aria-checked=true]{translate:0 -3px;box-shadow:0 3px 0 var(--ink);outline:2px solid var(--color-accent);outline-offset:2px}.hero__try{display:inline-flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-text-faint)}.kicker{font-family:var(--font-pixel);font-size:var(--text-sm);color:var(--color-accent);margin-bottom:var(--space-3)}.kicker--dark{color:#94e044}.section-title{font-size:clamp(1.9rem,4vw,2.9rem);line-height:1.08;font-weight:800;letter-spacing:-.035em}.how{padding-block:clamp(var(--space-8),9vw,140px) var(--space-8)}.how__grid{margin-top:var(--space-7);display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}.step{--step-c: #e50000;position:relative;background:var(--color-surface);border:2px solid var(--ink);border-radius:6px;padding:var(--space-6) var(--space-5);box-shadow:var(--shadow-pixel);transition:translate var(--dur-base) var(--ease-out),box-shadow var(--dur-base) var(--ease-out)}.step:nth-child(2){--step-c: #e5d900}.step:nth-child(3){--step-c: #0083c7}@media (hover: hover){.step:hover{translate:-4px -4px;box-shadow:8px 8px 0 var(--step-c),8px 8px 0 2px var(--ink)}}.step__num{position:absolute;top:var(--space-4);right:var(--space-5);font-family:var(--font-pixel);font-size:var(--text-2xl);color:var(--color-border-strong)}.step__icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border:2px solid var(--ink);background:var(--step-c);color:var(--ink);margin-bottom:var(--space-5);transition:rotate var(--dur-base) 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var(--ink);border-radius:4px;cursor:pointer;box-shadow:3px 3px 0 var(--ink);transition:box-shadow var(--dur-fast) var(--ease-out)}.color-tile:hover{box-shadow:5px 7px 0 var(--ink)}.color-tile.is-active{box-shadow:3px 3px 0 var(--color-accent),3px 3px 0 2px var(--ink);outline:2px solid var(--color-accent);outline-offset:2px}.color-tile__chip{grid-column:1 / -1;aspect-ratio:16 / 10;background:var(--tile);border:2px solid var(--ink);margin-bottom:4px}.color-tile__idx{font-family:var(--font-pixel);font-size:var(--text-sm);color:var(--ink)}.color-tile__hex{align-self:center;font-family:var(--font-mono);font-size:11px;color:var(--color-text-faint);text-transform:uppercase}.landing main>section.engine{padding-block:clamp(var(--space-8),8vw,120px);background:var(--ink);color:#fff;text-align:center}.engine .section-title{color:#fff}.engine__body{margin:var(--space-4) auto 0;max-width:56ch;font-size:var(--text-lg);color:#b8bec9}.pipeline{--packet: 14px;position:relative;list-style:none;padding:0;margin:var(--space-8) auto 0;max-width:900px;display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-8)}.pipeline:before{content:"";position:absolute;top:50%;left:16%;right:16%;border-top:2px dashed #4a5263}.pipeline__node{position:relative;z-index:1;display:flex;flex-direction:column;gap:4px;padding:var(--space-4);background:#2a3040;border:2px solid #fff;border-radius:4px;box-shadow:4px 4px #6d5ef6}.pipeline__node:nth-child(2){box-shadow:4px 4px #e5d900}.pipeline__node:nth-child(3){box-shadow:4px 4px #02be01}.pipeline__node strong{font-family:var(--font-pixel);font-size:var(--text-base);font-weight:400}.pipeline__node span{font-family:var(--font-mono);font-size:var(--text-xs);color:#9aa1ad}.pipeline__packet{position:absolute;z-index:0;top:calc(50% - var(--packet) / 2 + 1px);left:16%;width:var(--packet);height:var(--packet);background:#ff7a59;animation:packet-x 2.4s steps(24,end) infinite,packet-color 2.4s steps(1,end) 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12px;border-radius:var(--radius-pill);font-size:var(--text-sm);font-weight:var(--weight-semibold)}.status__dot{width:8px;height:8px;border-radius:50%;background:currentColor}.status--connected{color:var(--color-ok);background:var(--color-ok-soft)}.status--connecting{color:var(--color-warn);background:var(--color-warn-soft)}.status--disconnected{color:var(--color-danger);background:var(--color-danger-soft)}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.readout{display:inline-flex;align-items:center;gap:var(--space-2);padding:6px 10px;background:var(--color-surface-2);border-radius:var(--radius-md);font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-text)}.readout__chip{width:16px;height:16px;border-radius:4px;border:1px solid rgba(31,36,48,.15)}.readout__coord{font-variant-numeric:tabular-nums;min-width:74px;color:var(--color-text-muted)}.canvas-foot{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);margin:0;padding:var(--space-2) calc(var(--space-4) + var(--safe-right)) calc(var(--space-2) + var(--safe-bottom)) calc(var(--space-4) + var(--safe-left));border-top:1px solid var(--color-border);background:var(--color-surface)}.canvas-foot__hint{color:var(--color-text-faint);font-size:var(--text-xs)}@media (max-width: 640px){.dock-wrap{width:calc(100% - var(--space-4));bottom:calc(var(--space-3) + var(--safe-bottom))}.dock__row{flex-direction:column;align-items:stretch;gap:var(--space-3)}.zoom-controls,.readout,.canvas-foot{justify-content:center}.canvas-foot__hint{display:none}}:root{color-scheme:light;--color-bg: #fbfaf7;--color-bg-tint: #f3f0ea;--color-surface: #ffffff;--color-surface-2: #f7f5f1;--color-text: #1f2430;--color-text-muted: #6b7280;--color-text-faint: #9aa1ad;--color-on-accent: #ffffff;--color-border: #e8e4dc;--color-border-strong: #d6d0c5;--color-accent: #6d5ef6;--color-accent-hover: #5b4ce0;--color-accent-press: #4c3fca;--color-accent-soft: #eeecfe;--color-accent-2: #ff7a59;--color-ok: #16a34a;--color-warn: #d97706;--color-danger: #dc2626;--color-ok-soft: #e7f6ec;--color-warn-soft: #fdf1e0;--color-danger-soft: #fdecec;--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-pixel: "Silkscreen", var(--font-mono);--font-mono: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.375rem;--text-2xl: 1.875rem;--text-3xl: 2.75rem;--text-4xl: 3.75rem;--leading-tight: 1.1;--leading-normal: 1.5;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--space-8: 64px;--space-9: 96px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-pill: 999px;--shadow-sm: 0 1px 2px rgba(31, 36, 48, .06), 0 1px 3px rgba(31, 36, 48, .08);--shadow-md: 0 4px 12px rgba(31, 36, 48, .08), 0 2px 4px rgba(31, 36, 48, .06);--shadow-lg: 0 12px 32px rgba(31, 36, 48, .12), 0 4px 8px rgba(31, 36, 48, .06);--shadow-accent: 0 8px 24px rgba(109, 94, 246, .35);--shadow-pixel: 4px 4px 0 var(--color-text);--shadow-pixel-lg: 7px 7px 0 var(--color-text);--dur-fast: .12s;--dur-base: .22s;--dur-slow: .42s;--ease-out: cubic-bezier(.22, 1, .36, 1);--ease-in-out: cubic-bezier(.65, 0, .35, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--safe-top: env(safe-area-inset-top, 0px);--safe-right: env(safe-area-inset-right, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,p{margin:0}a{color:inherit;text-decoration:none}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:var(--radius-sm)}.canvas-app{display:flex;flex-direction:column;height:100%;background:radial-gradient(1200px 600px at 100% -10%,var(--color-accent-soft),transparent 60%),var(--color-bg)}.viewport{flex:1;position:relative;overflow:hidden;background:linear-gradient(45deg,var(--color-surface-2) 25%,transparent 25%) 0 0 / 24px 24px,linear-gradient(-45deg,var(--color-surface-2) 25%,transparent 25%) 0 0 / 24px 24px,var(--color-surface);cursor:crosshair;touch-action:none}.pixel-canvas{position:absolute;top:0;left:0;image-rendering:pixelated;background:#fff;box-shadow:var(--shadow-md)}