:root{--bg-dark: #0f172a;--bg-card: rgba(30, 41, 59, .7);--accent: #38bdf8;--accent-hover: #0ea5e9;--text-primary: #f8fafc;--text-secondary: #94a3b8;--danger: #ef4444;--glass: blur(12px);--border: rgba(255, 255, 255, .1);--font-main: "Inter", sans-serif;--font-display: "Outfit", sans-serif}.divider-horizontal{height:1px;background:var(--border);margin:1.5rem 0;width:100%}.divider-vertical{width:1px;height:24px;background:var(--border);margin:0 .5rem}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--bg-dark);color:var(--text-primary);height:100vh;overflow:hidden}canvas{position:absolute;top:0;left:0;z-index:0;pointer-events:auto}#app{display:flex;flex-direction:column;height:100vh;position:relative}.glass-bar{background:var(--bg-card);backdrop-filter:var(--glass);-webkit-backdrop-filter:var(--glass);border:1px solid var(--border)}.glass-hud{background:var(--bg-card);backdrop-filter:var(--glass);-webkit-backdrop-filter:var(--glass);border-radius:12px;border:1px solid var(--border);box-shadow:0 8px 32px #0000005e}.glass-toolbox{position:absolute;top:1.5rem;left:1.5rem;width:260px;background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:16px;box-shadow:0 8px 32px #0000005e;padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem;z-index:100;max-height:calc(100vh - 3rem);overflow-y:auto;transition:all .3s cubic-bezier(.16,1,.3,1)}.logo{font-family:var(--font-display);font-weight:600;font-size:1.5rem;letter-spacing:-.5px;color:var(--accent)}.toolbox-header-row{display:flex;justify-content:space-between;align-items:center}.tool-group{display:flex;flex-direction:column;gap:8px}.group-label{font-size:.65rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);font-weight:700;margin-bottom:2px}.tool-row{display:flex;background:#0003;padding:4px;border-radius:8px;gap:4px}.grid-2x2{display:grid;grid-template-columns:1fr 1fr}.tool-btn{background:transparent;border:none;color:var(--text-secondary);padding:10px;border-radius:6px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.tool-btn:hover{color:var(--text-primary);background:#ffffff1a}.tool-btn.active{color:var(--bg-dark);background:var(--accent)}.sliders-section{display:flex;flex-direction:column;gap:1.25rem}.setting-group{display:flex;flex-direction:column}.grid-2col{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem .75rem}.info-icon{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border-radius:50%;background:#ffffff1a;border:1px solid var(--border);color:var(--text-secondary);font-size:10px;cursor:help;margin-left:6px;transition:all .2s ease;flex-shrink:0}.info-icon:hover{background:var(--accent);color:var(--bg-dark);border-color:var(--accent)}.label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.875rem;font-weight:500;color:var(--text-secondary)}.val-badge{background:#0000004d;padding:2px 6px;border-radius:4px;font-family:monospace;font-size:.75rem;color:var(--text-primary)}.divider-horizontal{height:1px;width:100%;background:var(--border)}#thickness-slider,#eraser-slider,#snap-size-slider{width:100%;accent-color:var(--accent)}.actions-section{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-top:1.5rem;border-top:1px solid var(--border)}.history-actions{display:flex;gap:8px;width:100%}.actions-section button{width:100%}.secondary-btn{background:#ffffff0d;border:1px solid var(--border);color:var(--text-primary);padding:10px 16px;border-radius:8px;cursor:pointer;font-size:.8rem;font-weight:500;transition:all .2s ease;display:flex;align-items:center;justify-content:center;gap:8px}.flex-1{flex:1}.secondary-btn:hover{background:#ffffff1a}.secondary-btn.export-btn{border-color:#38bdf866;color:#38bdf8;margin-top:10px}.secondary-btn.export-btn:hover{background:#38bdf81a;border-color:#38bdf8}.danger-btn{background:#ef44441a;border:1px solid var(--danger);color:var(--danger);padding:8px 16px;border-radius:8px;cursor:pointer;font-size:.875rem;transition:all .2s ease}.danger-btn:hover{background:#ef444433}.num-input{background:#0000004d;border:1px solid var(--border);border-radius:6px;color:var(--text-primary);padding:8px 12px;width:100%;font-family:inherit;font-size:.875rem;outline:none;transition:border-color .2s}.num-input:focus{border-color:var(--accent)}#canvas-container{flex:1;position:relative;background-image:radial-gradient(circle at 2px 2px,rgba(255,255,255,.05) 1px,transparent 0);background-size:20px 20px;cursor:crosshair}#main-canvas{width:100%;height:100%;display:block;touch-action:none}#coordinate-display{position:absolute;bottom:1rem;left:1rem;padding:6px 12px;font-family:Inter,monospace;font-size:.7rem;color:var(--text-primary);background:#0f172ab3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid var(--border);border-radius:6px;pointer-events:none;z-index:100;white-space:nowrap}.properties-sidebar{position:absolute;top:0;right:0;height:100vh;width:320px;background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-left:1px solid var(--border);padding:1rem;display:flex;flex-direction:column;gap:.75rem;z-index:1000;overflow-y:auto}.sidebar-header{font-family:var(--font-display);font-weight:600;font-size:1.1rem;color:var(--accent);border-bottom:1px solid var(--border);padding-bottom:.5rem;position:sticky;top:-1rem;background:inherit;margin:-1rem -1rem 0;padding:1rem;z-index:5;display:flex;justify-content:space-between;align-items:center}.sidebar-sub-header{font-size:.6rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--accent);opacity:.8;font-weight:800;margin-top:.25rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;-webkit-user-select:none;user-select:none;transition:opacity .2s}.sidebar-sub-header:hover{opacity:1}.toggle-icon{color:var(--text-secondary);transition:transform .3s cubic-bezier(.16,1,.3,1);display:flex;align-items:center}.collapsible-section{display:flex;flex-direction:column}.section-content{display:flex;flex-direction:column;gap:.65rem;max-height:500px;opacity:1;overflow:hidden;transition:max-height .3s cubic-bezier(.16,1,.3,1),opacity .3s ease;margin-top:.65rem}.collapsible-section.collapsed .section-content{max-height:0;opacity:0;margin-top:0}.collapsible-section.collapsed .toggle-icon{transform:rotate(-90deg)}.collapsible-section.collapsed .sidebar-sub-header{opacity:.5}.property-list{display:flex;flex-direction:column;gap:.65rem}.result-item{display:flex;flex-direction:column;gap:2px}.result-item .label{font-size:.625rem;text-transform:uppercase;letter-spacing:1.2px;color:var(--text-secondary);font-weight:700;display:flex;align-items:center;gap:6px}.info-icon{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border-radius:50%;border:1px solid var(--text-secondary);font-size:9px;cursor:help;position:relative;opacity:.6;transition:all .2s}.info-icon:hover{opacity:1;border-color:var(--accent);color:var(--accent);background:#38bdf81a}.tooltip-global{position:fixed;z-index:99999;width:240px;background:#0f172afa;border:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:12px;border-radius:8px;color:var(--text-primary);font-size:.75rem;line-height:1.4;box-shadow:0 10px 30px #00000080;pointer-events:none;visibility:hidden;opacity:0;transition:opacity .1s ease,transform .1s ease;transform:translate(-10px)}.tooltip-global.visible{visibility:visible;opacity:1;transform:translate(0)}.result-item .value{font-family:var(--font-display);font-size:1rem;font-weight:500}.result-item .value.accent{font-size:1.125rem;color:var(--accent)}.result-item .value small{font-size:.75rem;color:var(--text-secondary);opacity:.8}.divider-horizontal{height:1px;width:100%;background:#ffffff0d}input[type=range]{height:4px;border-radius:2px}canvas:focus{outline:none}.panel-toggle-btn{display:flex;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-secondary);padding:4px;cursor:pointer;border-radius:4px;transition:all .2s ease}.panel-toggle-btn:hover{background:#ffffff1a;color:var(--text-primary)}.panel-toggle-btn:active{background:#fff3}@media(min-width:769px){.glass-toolbox.minimized{padding-bottom:1.5rem;gap:0}.glass-toolbox.minimized>:not(.toolbox-header-row){display:none}.properties-sidebar.minimized{height:auto;overflow-y:hidden}.properties-sidebar.minimized>:not(.sidebar-header){display:none}.properties-sidebar.minimized .sidebar-header{border-bottom:none;margin-bottom:-1rem}}.glass-toolbox::-webkit-scrollbar,.properties-sidebar::-webkit-scrollbar{display:none}.glass-toolbox,.properties-sidebar{-ms-overflow-style:none;scrollbar-width:none}.mobile-nav{display:none}@media(max-width:768px){.mobile-nav{display:flex;position:fixed;bottom:1.5rem;left:50%;transform:translate(-50%);background:var(--bg-card);backdrop-filter:var(--glass);-webkit-backdrop-filter:var(--glass);border:1px solid var(--border);border-radius:999px;padding:6px;gap:.5rem;z-index:2000;box-shadow:0 8px 32px #0006}.mobile-nav-btn{background:transparent;border:none;color:var(--text-primary);padding:8px 16px;border-radius:999px;font-family:var(--font-main);font-weight:500;font-size:.875rem;display:flex;align-items:center;cursor:pointer;transition:background .2s}.mobile-nav-btn:hover{background:#ffffff1a}#coordinate-display{bottom:auto;top:1rem;left:1rem}.glass-toolbox{bottom:0;top:auto;left:0;width:100%;border-radius:20px 20px 0 0;border-bottom:none;border-left:none;border-right:none;padding:1.5rem 1.5rem 8rem;max-height:85vh;overflow-y:auto;transform:translateY(120%);transition:transform .3s cubic-bezier(.16,1,.3,1);box-shadow:0 -8px 32px #00000080}.glass-toolbox.mobile-open{transform:translateY(0)}.properties-sidebar{height:85vh;width:100%;bottom:0;top:auto;left:0;right:auto;border-radius:20px 20px 0 0;border-bottom:none;border-left:none;border-right:none;border-top:1px solid var(--border);padding-bottom:8rem;transform:translateY(120%);transition:transform .3s cubic-bezier(.16,1,.3,1);box-shadow:0 -8px 32px #00000080}.properties-sidebar.mobile-open{transform:translateY(0)}.sliders-section{padding-bottom:1rem}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;opacity:0;animation:fadeIn .2s forwards}.modal-content{width:90%;max-width:400px;padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem;transform:scale(.95);animation:scaleIn .2s forwards}@keyframes fadeIn{to{opacity:1}}@keyframes scaleIn{to{transform:scale(1)}}.modal-header{display:flex;justify-content:space-between;align-items:center}.modal-header h3{font-family:var(--font-display);color:var(--accent);margin:0}.modal-body select.num-input{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:calc(100% - 12px) center;padding-right:36px}.bounds-info{margin-top:1rem;font-size:.75rem;color:var(--text-secondary);background:#0003;padding:8px;border-radius:6px;text-align:center}.modal-footer{display:flex;gap:12px}.mobile-top-actions{display:none}@media(max-width:768px){.mobile-top-actions{display:flex;position:absolute;top:1rem;right:1rem;gap:.5rem;z-index:100}.mobile-action-btn{background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-primary);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:.5rem;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 6px -1px #0000001a;transition:all .2s ease}.mobile-action-btn:active{background:var(--surface-bg);transform:scale(.95)}}