*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px}#root{width:100%;height:100vh}:root{--sidebar-width: 360px;--bg: #f0f2f5;--surface: #ffffff;--surface-hover: #f8f9fb;--border: #e4e7ec;--border-light: #f0f2f5;--text: #1a1d23;--text-muted: #6b7280;--text-dim: #9ca3af;--primary: #6c5ce7;--primary-hover: #5a4bd1;--primary-light: rgba(108, 92, 231, .08);--secondary: #0984e3;--secondary-hover: #0769b5;--accent: #00b894;--radius: 10px;--radius-sm: 6px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08), 0 2px 4px rgba(0, 0, 0, .04);--shadow-lg: 0 12px 40px rgba(0, 0, 0, .12), 0 4px 12px rgba(0, 0, 0, .06);--transition: .2s cubic-bezier(.4, 0, .2, 1);--mobile-header-height: 52px;--checker-a: #e2e5ea;--checker-b: #eef0f4;--overlay-bg: rgba(255, 255, 255, .85)}[data-theme=dark]{--bg: #0f1117;--surface: #1a1d2e;--surface-hover: #21253a;--border: #2d3154;--border-light: #1e2235;--text: #e4e6f0;--text-muted: #9096b8;--text-dim: #5c6494;--primary-light: rgba(108, 92, 231, .18);--shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4), 0 2px 4px rgba(0, 0, 0, .2);--shadow-lg: 0 12px 40px rgba(0, 0, 0, .5), 0 4px 12px rgba(0, 0, 0, .3);--checker-a: #1e2235;--checker-b: #252a42;--overlay-bg: rgba(15, 17, 23, .85)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:13px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{display:flex;height:100vh;height:100dvh;overflow:hidden}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--surface);border-right:1px solid var(--border);overflow-y:auto;overflow-x:hidden;scrollbar-gutter:stable}.main{flex:1;display:flex;flex-direction:column;padding:20px;overflow:hidden;background:var(--bg)}.control-panel{padding:20px 16px}.app-title-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.app-title{font-size:20px;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.5px}.stats-bar{display:flex;gap:16px;padding:10px 14px;background:var(--primary-light);border-radius:var(--radius);margin-bottom:16px;font-size:12px;color:var(--text-muted);border:1px solid rgba(108,92,231,.1)}.stats-bar b{color:var(--primary);font-weight:700}.section{margin-bottom:10px;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface);transition:box-shadow var(--transition)}.section:hover{box-shadow:var(--shadow)}.section-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);padding:10px 14px;cursor:pointer;-webkit-user-select:none;user-select:none;background:var(--surface);transition:all var(--transition);list-style:none;display:flex;align-items:center;gap:8px}.section-title:before{content:"";display:inline-block;width:0;height:0;border-left:5px solid var(--text-dim);border-top:4px solid transparent;border-bottom:4px solid transparent;transition:transform var(--transition)}details.section[open]>.section-title:before{transform:rotate(90deg)}.section-title::-webkit-details-marker{display:none}.section-title:hover{color:var(--text);background:var(--surface-hover)}details.section>*:not(summary){padding:0 14px}details.section>*:last-child{padding-bottom:14px}.control-row{margin-top:10px}.control-row.inline{display:flex;align-items:center;gap:8px}.control-label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:4px;font-weight:500}.control-row.inline .control-label{margin-bottom:0;white-space:nowrap}input[type=range]{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:var(--border);border-radius:3px;outline:none;transition:background var(--transition)}input[type=range]:hover{background:var(--text-dim)}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:3px solid white;box-shadow:var(--shadow-md);transition:transform var(--transition),box-shadow var(--transition)}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15);box-shadow:var(--shadow-lg)}input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:3px solid white;box-shadow:var(--shadow-md)}select{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:12px;background:var(--surface);color:var(--text);outline:none;transition:border-color var(--transition),box-shadow var(--transition);cursor:pointer}select:hover{border-color:var(--text-dim)}select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}input[type=color]{width:40px;height:32px;border:2px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;padding:2px;transition:border-color var(--transition)}input[type=color]:hover{border-color:var(--primary)}.num-input{width:80px;padding:6px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:12px;text-align:center;outline:none;transition:border-color var(--transition),box-shadow var(--transition)}.num-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.text-field{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:12px;outline:none;transition:border-color var(--transition),box-shadow var(--transition)}.text-field:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.text-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:12px;font-family:inherit;resize:vertical;outline:none;min-height:80px;transition:border-color var(--transition),box-shadow var(--transition)}.text-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.toggle{display:flex;align-items:center;gap:8px;font-size:12px;cursor:pointer;-webkit-user-select:none;user-select:none;color:var(--text);padding:4px 0;font-weight:500}.toggle input[type=checkbox]{width:16px;height:16px;accent-color:var(--primary);cursor:pointer}.button-row{display:flex;gap:8px;margin-bottom:10px}.btn{padding:10px 18px;border:none;border-radius:var(--radius-sm);font-size:12px;font-weight:600;cursor:pointer;transition:all var(--transition);letter-spacing:.2px;position:relative;overflow:hidden}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{flex:1;background:linear-gradient(135deg,var(--primary),var(--primary-hover));color:#fff;box-shadow:0 2px 8px #6c5ce74d}.btn-primary:hover:not(:disabled){box-shadow:0 4px 16px #6c5ce766;transform:translateY(-1px)}.btn-secondary{flex:1;background:linear-gradient(135deg,var(--secondary),var(--secondary-hover));color:#fff;box-shadow:0 2px 8px #0984e34d}.btn-secondary:hover{box-shadow:0 4px 16px #0984e366;transform:translateY(-1px)}.btn-small{padding:7px 14px;background:var(--surface);border:1px solid var(--border);color:var(--text);font-size:11px;font-weight:600}.btn-small:hover{background:var(--surface-hover);border-color:var(--text-dim)}.palette-preview{display:flex;gap:4px;margin-top:8px}.palette-swatch{width:28px;height:18px;border-radius:4px;border:1px solid rgba(0,0,0,.08);transition:transform var(--transition)}.palette-swatch:hover{transform:scale(1.2)}.canvas-container{flex:1;display:flex;align-items:center;justify-content:center;position:relative;background:repeating-conic-gradient(var(--checker-a) 0% 25%,var(--checker-b) 0% 50%) 50% / 20px 20px;border-radius:var(--radius);overflow:hidden;min-height:0;box-shadow:inset 0 1px 3px #0000000f}.empty-state{position:absolute;text-align:center;color:var(--text-muted);padding:40px;z-index:1}.empty-state p{font-size:15px;line-height:1.7;max-width:300px}.loading-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--overlay-bg);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:10;gap:14px;color:var(--primary);font-weight:700;font-size:14px}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.export-bar{display:flex;gap:10px;padding:14px 0 0;justify-content:center;flex-wrap:wrap}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(100px);background:var(--text);color:#fff;padding:12px 24px;border-radius:var(--radius);font-size:13px;font-weight:600;box-shadow:var(--shadow-lg);z-index:1000;opacity:0;transition:all .3s cubic-bezier(.4,0,.2,1);pointer-events:none;white-space:nowrap}.toast.toast-success{background:var(--accent)}.toast.toast-error{background:#e74c3c}.toast.toast-visible{opacity:1;transform:translate(-50%) translateY(0)}.sidebar::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-track{background:transparent}.sidebar::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.sidebar::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.theme-toggle{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);cursor:pointer;font-size:16px;transition:all var(--transition);flex-shrink:0;line-height:1}.theme-toggle:hover{background:var(--surface-hover);border-color:var(--text-dim)}.mobile-header{display:none;position:fixed;top:0;left:0;right:0;height:var(--mobile-header-height);background:var(--surface);border-bottom:1px solid var(--border);z-index:102;padding:0 16px;align-items:center;justify-content:space-between;box-shadow:var(--shadow)}.mobile-header-brand{display:flex;align-items:center;gap:8px;color:var(--primary)}.mobile-header-title{font-size:17px;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.3px}[data-theme=dark] input[type=range]{background:var(--border)}[data-theme=dark] input[type=range]::-webkit-slider-thumb{border-color:var(--surface)}[data-theme=dark] input[type=range]::-moz-range-thumb{border-color:var(--surface)}[data-theme=dark] select,[data-theme=dark] .text-input,[data-theme=dark] .text-field,[data-theme=dark] .num-input{background:var(--surface);color:var(--text);border-color:var(--border)}.mobile-menu-toggle{display:none;position:fixed;bottom:20px;right:20px;z-index:101;width:56px;height:56px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-size:24px;cursor:pointer;box-shadow:var(--shadow-lg);transition:all var(--transition);align-items:center;justify-content:center}.mobile-menu-toggle:active{transform:scale(.92)}.mobile-menu-toggle .menu-icon{display:flex;flex-direction:column;gap:5px;width:22px}.mobile-menu-toggle .menu-icon span{display:block;height:2.5px;width:100%;background:#fff;border-radius:2px;transition:all var(--transition)}.mobile-menu-toggle.is-open .menu-icon span:first-child{transform:rotate(45deg) translate(5px,5px)}.mobile-menu-toggle.is-open .menu-icon span:nth-child(2){opacity:0}.mobile-menu-toggle.is-open .menu-icon span:last-child{transform:rotate(-45deg) translate(5px,-5px)}.sidebar-overlay{display:none;position:fixed;top:var(--mobile-header-height);left:0;right:0;bottom:0;background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:99;opacity:0;transition:opacity .3s ease}.sidebar-overlay.visible{opacity:1}@media(max-width:768px){.app{flex-direction:column;height:100vh;height:100dvh}.mobile-header{display:flex}.app-title-row{display:none}.mobile-menu-toggle{display:flex}.sidebar-overlay{display:block;pointer-events:none}.sidebar-overlay.visible{pointer-events:auto}.sidebar{position:fixed;top:var(--mobile-header-height);left:0;bottom:0;width:85vw;max-width:360px;min-width:auto;z-index:100;transform:translate(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);border-right:1px solid var(--border);box-shadow:none}.sidebar.sidebar-open{transform:translate(0);box-shadow:var(--shadow-lg)}.main{width:100%;height:100vh;height:100dvh;padding:16px;padding-top:calc(var(--mobile-header-height) + 16px);padding-bottom:88px}.canvas-container{min-height:200px}.btn{padding:12px 18px;font-size:13px;min-height:44px}.btn-small{padding:10px 14px;font-size:12px;min-height:40px}select{padding:10px 12px;font-size:13px;min-height:44px}.toggle{padding:6px 0;min-height:40px}.toggle input[type=checkbox]{width:20px;height:20px}input[type=range]{height:8px}input[type=range]::-webkit-slider-thumb{width:24px;height:24px}.text-input{font-size:14px;min-height:100px}.export-bar{padding:12px 0 0;gap:8px}.export-bar .btn-small{flex:1;text-align:center}.toast{bottom:88px;max-width:85vw;font-size:12px}}@media(max-width:380px){.main{padding:10px 10px 84px}.stats-bar{flex-wrap:wrap;gap:8px}.button-row{flex-wrap:wrap}}