:root,:root[data-theme=light]{--brand: #6366f1;--brand-strong: #4f46e5;--brand-soft: #eef2ff;--brand-glow: rgba(99, 102, 241, .35);--text-strong: #0f172a;--text-body: #334155;--text-muted: #64748b;--text-faint: #94a3b8;--bg: #ffffff;--bg-soft: #f8fafc;--bg-canvas: #f1f5f9;--border: #e2e8f0;--border-strong: #cbd5e1;--success: #16a34a;--success-soft: #dcfce7;--error: #dc2626;--error-soft: #fee2e2;--warning: #f59e0b;--warning-soft: #fef3c7;--col-todo: #f1f5f9;--col-doing: #fef3c7;--col-done: #dcfce7;--overlay: rgba(15, 23, 42, .4);--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 12px rgba(15, 23, 42, .06);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .08);--shadow-xl: 0 20px 60px rgba(15, 23, 42, .15);color-scheme:light}:root[data-theme=dark]{--brand: #818cf8;--brand-strong: #a5b4fc;--brand-soft: rgba(99, 102, 241, .15);--brand-glow: rgba(129, 140, 248, .35);--text-strong: #f1f5f9;--text-body: #cbd5e1;--text-muted: #94a3b8;--text-faint: #64748b;--bg: #0f172a;--bg-soft: #1e293b;--bg-canvas: #020617;--border: #334155;--border-strong: #475569;--success: #4ade80;--success-soft: rgba(34, 197, 94, .15);--error: #f87171;--error-soft: rgba(220, 38, 38, .15);--warning: #fbbf24;--warning-soft: rgba(245, 158, 11, .15);--col-todo: #1e293b;--col-doing: rgba(245, 158, 11, .1);--col-done: rgba(34, 197, 94, .1);--overlay: rgba(2, 6, 23, .7);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .4);--shadow-xl: 0 20px 60px rgba(0, 0, 0, .5);color-scheme:dark}:root{--radius: 12px;--radius-lg: 16px;--font-sans: -apple-system, BlinkMacSystemFont, "Inter", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%;min-height:100vh}body{font-family:var(--font-sans);background:var(--bg-canvas);color:var(--text-body);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .2s,color .2s}a{color:var(--brand);text-decoration:none}a:hover{color:var(--brand-strong)}button{font-family:inherit;cursor:pointer}