:root{color-scheme:light dark;--bg: #f4f2ec;--bg-grad-1: #f9f7f2;--bg-grad-2: #e9ecf1;--panel: rgba(255, 255, 255, .62);--panel-solid: #ffffff;--panel-border: rgba(22, 30, 42, .09);--panel-shadow: 0 18px 44px -20px rgba(28, 40, 64, .3);--panel-inset: inset 0 1px 0 rgba(255, 255, 255, .55);--text: #1a1d24;--muted: #6a7280;--faint: #9aa1ad;--accent: #3b6ea5;--accent-hover: #2f5d8d;--accent-soft: rgba(59, 110, 165, .12);--accent-contrast: #ffffff;--field-bg: rgba(255, 255, 255, .82);--field-border: rgba(22, 30, 42, .14);--danger: #c23b46;--radius: 16px;--radius-sm: 10px;--radius-xs: 8px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace}[data-theme=dark]{--bg: #0d0f13;--bg-grad-1: #12161d;--bg-grad-2: #0a0c10;--panel: rgba(28, 33, 42, .55);--panel-solid: #151920;--panel-border: rgba(255, 255, 255, .09);--panel-shadow: 0 22px 56px -24px rgba(0, 0, 0, .72);--panel-inset: inset 0 1px 0 rgba(255, 255, 255, .06);--text: #e9ebf1;--muted: #9aa3b2;--faint: #6b7280;--accent: #6ba3d6;--accent-hover: #84b6e0;--accent-soft: rgba(107, 163, 214, .16);--accent-contrast: #0d0f13;--field-bg: rgba(255, 255, 255, .045);--field-border: rgba(255, 255, 255, .13);--danger: #e0626d}*{box-sizing:border-box}html,body{height:100%}body{margin:0;overflow:hidden;font-family:var(--font);color:var(--text);background:radial-gradient(1200px 800px at 12% -10%,var(--bg-grad-1),transparent 60%),radial-gradient(1000px 700px at 110% 120%,var(--bg-grad-2),transparent 55%),var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background-color .35s ease,color .35s ease}button,input,select{font:inherit;color:inherit}button{cursor:pointer}.shell{height:100vh;height:100dvh;display:grid;grid-template-columns:304px 1fr 272px;grid-template-rows:auto 1fr auto;background:transparent}.topbar{grid-column:1 / 4;min-height:60px;display:flex;gap:16px;align-items:center;padding:10px 18px;background:var(--panel);backdrop-filter:blur(22px) saturate(170%);-webkit-backdrop-filter:blur(22px) saturate(170%);border-bottom:1px solid var(--panel-border);box-shadow:var(--panel-inset);position:relative;z-index:5}.topbar:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.5}.brand{display:flex;align-items:center;gap:11px;white-space:nowrap;padding-right:4px}.brand .logo{width:30px;height:30px;flex:none;filter:drop-shadow(0 2px 6px rgba(59,110,165,.35))}.brand .title{display:flex;flex-direction:column;line-height:1.05}.brand .title strong{font-size:14.5px;font-weight:600;letter-spacing:.2px}.brand .title span{font-size:10.5px;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase}.tabs{display:flex;gap:2px;padding:3px;border-radius:12px;background:var(--field-bg);border:1px solid var(--field-border)}.tabs button{border:none;background:transparent;color:var(--muted);border-radius:9px;padding:7px 14px;font-size:13px;font-weight:500;transition:color .2s ease,background-color .2s ease,transform .15s ease}.tabs button:hover{color:var(--text)}.tabs button.active{background:var(--accent);color:var(--accent-contrast);box-shadow:0 4px 12px -4px var(--accent)}.filebar{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-left:auto}.file-btn{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--field-border);background:var(--field-bg);color:var(--text);border-radius:var(--radius-xs);padding:7px 13px;font-size:12.5px;font-weight:500;white-space:nowrap;transition:background-color .2s ease,border-color .2s ease,transform .12s ease,box-shadow .2s ease,color .2s ease}.file-btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.file-btn:active{transform:translateY(0) scale(.98)}.file-btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast)}.file-btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:var(--accent-contrast)}.file-menu{position:relative}.file-menu-toggle svg{width:15px;height:15px;transition:transform .25s ease}.file-menu-toggle[aria-expanded=true] svg{transform:rotate(180deg)}.file-menu-list{position:absolute;top:calc(100% + 10px);right:0;min-width:186px;display:flex;flex-direction:column;gap:2px;padding:7px;background:var(--panel-solid);border:1px solid var(--panel-border);border-radius:14px;box-shadow:0 22px 50px -18px #141c2c6b;backdrop-filter:blur(22px) saturate(170%);-webkit-backdrop-filter:blur(22px) saturate(170%);opacity:0;transform:translateY(-6px) scale(.98);transform-origin:top right;pointer-events:none;transition:opacity .18s ease,transform .18s ease;z-index:30}.file-menu-list.open{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}.file-menu-item{display:block;width:100%;text-align:left;border:none;background:transparent;color:var(--text);border-radius:9px;padding:8px 11px;font-size:13px;font-weight:500;white-space:nowrap;transition:background-color .15s ease,color .15s ease}.file-menu-item:hover{background:var(--accent-soft);color:var(--accent)}.file-menu-danger:hover{background:#c23b461f;color:var(--danger)}.file-menu-sep{height:1px;margin:5px 4px;background:var(--panel-border)}.theme-toggle{flex:none;width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--field-border);background:var(--field-bg);border-radius:11px;color:var(--text);transition:background-color .2s,border-color .2s,transform .15s,color .2s}.theme-toggle:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.theme-toggle svg{width:19px;height:19px}.drawer-toggle{display:none;margin-left:8px;width:38px;height:38px;border:1px solid var(--field-border);background:var(--field-bg);border-radius:11px;color:var(--text);font-size:13px;transition:background-color .2s,border-color .2s,color .2s}.drawer-toggle:hover{border-color:var(--accent);color:var(--accent)}.panel{background:var(--panel);backdrop-filter:blur(22px) saturate(170%);-webkit-backdrop-filter:blur(22px) saturate(170%);border-color:var(--panel-border);box-shadow:var(--panel-inset);overflow:auto;padding:16px 15px;scrollbar-width:thin;scrollbar-color:var(--field-border) transparent}.panel::-webkit-scrollbar{width:9px}.panel::-webkit-scrollbar-thumb{background:var(--field-border);border-radius:9px;border:2px solid transparent;background-clip:content-box}.left{border-right:1px solid var(--panel-border)}.right{border-left:1px solid var(--panel-border)}.card{background:var(--panel-solid);border:1px solid var(--panel-border);border-radius:var(--radius);padding:14px 14px 16px;margin-bottom:14px;box-shadow:var(--panel-shadow);transition:border-color .25s ease}.card-title{margin:0 0 12px;font-size:11px;font-weight:600;letter-spacing:1.4px;text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:8px}.card-title:before{content:"";width:4px;height:13px;border-radius:3px;background:var(--accent)}label{display:grid;gap:6px;margin:0 0 12px;font-size:12.5px;color:var(--muted);font-weight:500}input,select{width:100%;border:1px solid var(--field-border);border-radius:var(--radius-xs);padding:9px 10px;background:var(--field-bg);color:var(--text);font-size:13.5px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}input:hover,select:hover{border-color:var(--accent)}input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.panel button{width:100%;margin:4px 0;border:1px solid var(--field-border);background:var(--field-bg);color:var(--text);border-radius:var(--radius-xs);padding:9px 11px;font-size:13px;font-weight:500;transition:background-color .2s,border-color .2s,transform .12s,color .2s}.panel button:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}.panel button:active{transform:scale(.985)}.stage{min-width:0;min-height:0;position:relative;background:transparent;touch-action:none}canvas{display:block;width:100%;height:100%;cursor:crosshair}.palette{display:grid;grid-template-columns:repeat(8,1fr);gap:8px;margin-bottom:4px}.swatch{aspect-ratio:1;background:var(--c);border:1px solid rgba(0,0,0,.18);border-radius:9px;min-height:26px;margin:0;padding:0;cursor:pointer;transition:transform .14s ease,box-shadow .2s ease}.swatch:hover{transform:scale(1.12);box-shadow:0 4px 10px -3px #0006}.swatch.active-swatch{outline:2px solid var(--text);outline-offset:2px;box-shadow:0 0 0 4px var(--accent-soft)}.brush,.mark-nav{background:var(--field-bg);border:1px solid var(--field-border);border-radius:var(--radius-sm);padding:12px;margin:10px 0;font-size:12.5px;line-height:1.55;color:var(--muted)}.brush strong{color:var(--accent);font-weight:600}.mark-nav button{margin-top:8px}.mark-nav #markCount{color:var(--text);font-weight:500}.checks{margin:6px 0 4px;display:grid;gap:2px}.checks label{display:flex;flex-direction:row-reverse;justify-content:flex-start;align-items:center;gap:12px;margin:0;padding:7px 4px;font-size:13px;color:var(--text);border-radius:8px;cursor:pointer;transition:background-color .15s ease}.checks label:hover{background:var(--accent-soft)}.checks input[type=checkbox]{appearance:none;-webkit-appearance:none;width:38px;height:22px;flex:none;border-radius:999px;background:var(--field-border);position:relative;cursor:pointer;transition:background-color .22s ease;margin:0}.checks input[type=checkbox]:after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #00000059;transition:transform .22s cubic-bezier(.34,1.56,.64,1)}.checks input[type=checkbox]:checked{background:var(--accent)}.checks input[type=checkbox]:checked:after{transform:translate(16px)}.status{grid-column:1 / 4;display:flex;justify-content:space-between;gap:12px;padding:8px 18px;color:var(--muted);background:var(--panel);backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);border-top:1px solid var(--panel-border);font-size:11.5px;letter-spacing:.2px}.status #statusText{font-family:var(--mono);color:var(--text)}@media(max-width:880px){body{overflow:hidden}.shell{grid-template-columns:1fr;grid-template-rows:auto 1fr auto}.topbar{grid-column:1;align-items:flex-start;flex-wrap:wrap;gap:10px}.brand .title{display:none}.filebar{width:100%;overflow:visible}.drawer-toggle{display:block}.panel{position:fixed;top:92px;bottom:30px;width:min(88vw,340px);z-index:6;transform:translate(-112%);transition:transform .26s cubic-bezier(.16,1,.3,1);box-shadow:0 24px 60px -16px #00000073}.right{right:0;transform:translate(112%)}body.drawer-open .left,body.drawer-open .right{transform:translate(0)}.stage,.status{grid-column:1}}@media print{.topbar,.panel,.status{display:none}.shell{display:block}.stage{width:100vw;height:100vh}}@media(prefers-reduced-motion:reduce){*{transition:none!important}.swatch:hover{transform:none}}