:root{--bg-base: #1B1B24;--bg-surface: #2a2a3a;--bg-overlay: #343448;--bg-input: #222230;--text-primary: #e8e8ff;--text-secondary: #c0c0e0;--text-subtle: #8080a0;--accent: #CC66FF;--accent-hover: #DD88FF;--accent-dim: rgba(204, 102, 255, .12);--success: #00D364;--error: #ff3399;--warning: #FFCC66;--border: #4a4a68;--border-light: #3a3a54;--radius: 12px;--radius-sm: 8px;--transition: .15s ease;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", "Menlo", "Consolas", monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg-base);color:var(--text-primary);overflow:hidden;height:100vh;-webkit-font-smoothing:antialiased}#app{display:flex;flex-direction:column;height:100vh}#nav{display:flex;align-items:center;padding:0 16px 0 76px;height:46px;zoom:1.05;flex-shrink:0;background:var(--bg-base);border-bottom:1px solid var(--border-light);gap:4px;-webkit-app-region:drag;-webkit-user-select:none;user-select:none}.nav-btn{background:none;border:none;color:var(--text-secondary);font:inherit;font-size:13px;font-weight:500;padding:6px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}.nav-btn:hover{background:var(--bg-overlay);color:var(--text-primary)}.nav-brand{font-weight:500;color:var(--text-primary);font-size:14px;cursor:pointer;-webkit-app-region:no-drag;-webkit-user-select:none;user-select:none}.nav-center{display:flex;align-items:center;gap:6px;-webkit-app-region:no-drag}.nav-project-name{font-size:13px;color:var(--text-subtle)}.nav-btn{-webkit-app-region:no-drag}.nav-spacer{flex:1}.nav-dropdown-wrap{position:relative;display:inline-block}.nav-dropdown{display:none;position:absolute;top:100%;left:0;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);min-width:160px;z-index:200;box-shadow:0 8px 24px #0006;padding:4px 0}.nav-dropdown-wrap:hover .nav-dropdown,.nav-dropdown-wrap:focus-within .nav-dropdown{display:block}.nav-dropdown-item{display:block;width:100%;text-align:left;background:none;border:none;color:var(--text-secondary);font:inherit;font-size:12px;padding:6px 14px;cursor:pointer;transition:background var(--transition)}.nav-dropdown-item:hover{background:var(--bg-overlay);color:var(--text-primary)}#main{flex:1;overflow-y:auto;position:relative}.page{display:none;padding:32px 24px;max-width:720px;margin:0 auto;animation:fadeIn .2s ease;zoom:1.05}.page.active{display:block}.page-former.active{display:flex;max-width:none;padding:0;height:100%;zoom:1}#page-battery.active{max-width:900px}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}#page-landing{position:relative;overflow:hidden}.landing-bg-art{position:relative;width:100%;display:flex;justify-content:center;pointer-events:none;z-index:0;-webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,1) 20%,rgba(0,0,0,.5) 100%);mask-image:linear-gradient(to bottom,#000 20%,#0003)}.landing-bg-logo{width:50%;height:auto;opacity:.8;filter:brightness(1.4)}.landing-hero{text-align:center;padding:0 0 32px;position:relative;z-index:1}.landing-hero h1{font-size:32px;font-weight:500;letter-spacing:-.5px;margin-bottom:8px}.landing-hero p{color:var(--text-secondary);font-size:15px}.landing-actions{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:40px;position:relative;z-index:1}.action-card{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius);padding:24px;cursor:pointer;transition:all var(--transition);text-align:left}.action-card:hover{border-color:var(--border);background:var(--bg-overlay)}.action-card h3{font-size:15px;font-weight:500;margin-bottom:6px;color:var(--text-primary)}.action-card p{font-size:13px;color:var(--text-secondary);line-height:1.4}.section-title{font-size:12px;font-weight:500;color:var(--text-subtle);text-transform:uppercase;letter-spacing:1px;margin-bottom:16px}.project-list{display:flex;flex-direction:column;gap:8px}.project-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}.project-item:hover{border-color:var(--border);background:var(--bg-overlay)}.project-name{flex:1;font-size:14px;font-weight:500}.project-meta{font-size:12px;color:var(--text-subtle)}.badge{font-size:10px;padding:4px 8px;border-radius:6px;background:var(--bg-base);border:1px solid var(--border-light);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-weight:600}.badge-warn{color:var(--warning);border-color:var(--warning)}.badge-muted{color:var(--text-subtle);border-color:var(--border);opacity:.7}.card-disabled{pointer-events:none;opacity:.35}.project-type-badge{font-size:9px;padding:2px 6px;border-radius:4px;text-transform:uppercase;letter-spacing:.3px;font-weight:600;vertical-align:middle}.badge-pcb{background:color-mix(in srgb,var(--accent) 15%,transparent);color:var(--accent)}.badge-sw{background:color-mix(in srgb,var(--success) 15%,transparent);color:var(--success)}.dashboard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}.dashboard-divider{display:flex;align-items:center;gap:12px;margin:4px 0 16px}.dash-hr{flex:1;border:none;border-top:1px solid var(--border-light)}.dash-section-label{font-size:10px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-subtle);white-space:nowrap}.dash-card{position:relative;background:transparent;border:1px solid var(--card-color, var(--border));border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:border-color var(--transition),box-shadow var(--transition)}.dash-card:hover{border-color:var(--card-color-text, var(--text-secondary));box-shadow:0 0 12px color-mix(in srgb,var(--card-color, var(--border)) 20%,transparent)}.dash-card-tab{display:inline-block;background:color-mix(in srgb,var(--card-color, var(--border)) 18%,transparent);color:var(--card-color-text, var(--text-primary));font-size:13px;font-weight:600;padding:7px 16px;border-bottom:1px solid var(--card-color, var(--border));border-right:1px solid var(--card-color, var(--border));border-radius:0 0 var(--radius-sm) 0}.dash-card-body{padding:10px 16px 16px}.dash-card-body p{font-size:13px;color:var(--text-secondary);line-height:1.4}.dash-card.card-disabled{pointer-events:none;opacity:.3}@media(max-width:640px){.dashboard-grid{grid-template-columns:1fr 1fr}}.card{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius);padding:20px;margin-bottom:16px}.card-title{font-size:14px;font-weight:500;margin-bottom:16px}.form-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.form-row:last-child{margin-bottom:0}.form-label{font-size:13px;color:var(--text-secondary);min-width:140px}.form-input{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font:inherit;font-size:13px;padding:8px 12px;outline:none;transition:all var(--transition)}.form-input:focus{border-color:var(--accent);outline:1px solid var(--accent)}.form-input::placeholder{color:var(--text-subtle)}select.form-input{cursor:pointer}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-surface);color:var(--text-primary);font:inherit;font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition);white-space:nowrap}.btn:hover{background:var(--bg-overlay);border-color:var(--text-secondary)}.btn-primary{background:var(--text-primary);border-color:var(--text-primary);color:var(--bg-base)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-sm{padding:6px 12px;font-size:12px}.btn-danger{color:var(--error);border-color:var(--border)}.btn-danger:hover{background:#ff33991a;border-color:var(--error)}.file-row{display:flex;align-items:center;gap:12px}.file-name{flex:1;font-size:13px;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-name.has-file{color:var(--text-primary)}.check-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.check-label{display:flex;align-items:center;gap:6px;font-size:13px;cursor:pointer}.check-label input[type=checkbox]{accent-color:var(--accent)}.action-bar{display:flex;align-items:center;gap:8px;margin-top:20px}.action-bar .spacer{flex:1}.page-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.page-header h2{font-size:18px;font-weight:500}.board-canvas-wrap{background:var(--bg-base);border:1px solid var(--border-light);border-radius:var(--radius);padding:0;text-align:center}.board-canvas-wrap canvas{max-width:100%;border-radius:var(--radius)}.side-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}.side-tab{padding:6px 12px;font-size:12px;font-weight:500;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-surface);color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.side-tab.active{background:var(--text-primary);border-color:var(--text-primary);color:var(--bg-base)}.cutout-list{display:flex;flex-direction:column;gap:4px;margin-top:8px}.cutout-item{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-base);border:1px solid var(--border-light);border-radius:var(--radius-sm);font-size:12px;font-family:var(--font-mono)}.cutout-item .cutout-text{flex:1;color:var(--text-secondary)}.cutout-item-editing{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--bg-base))}.result-files{font-family:var(--font-mono);font-size:13px;line-height:1.6;color:var(--text-secondary);background:var(--bg-base);border:1px solid var(--border-light);padding:16px;border-radius:var(--radius-sm);margin-bottom:20px}.spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#1b1b24d9;z-index:100;flex-direction:column;gap:16px}.loading-overlay .spinner{width:32px;height:32px;border-width:3px}.loading-text{font-size:14px;font-weight:500;color:var(--text-primary)}.former-container{display:flex;width:100%;height:100%}.former-canvas-wrap{flex:1;background:#000;position:relative;overflow:hidden}.former-canvas-wrap canvas{position:absolute;top:0;left:0}.former-sidebar{width:280px;background:var(--bg-base);border-left:1px solid var(--border-light);display:flex;flex-direction:column;overflow-y:auto;flex-shrink:0}.sidebar-section{padding:12px 16px;border-bottom:1px solid var(--border-light)}.sidebar-title{font-size:13px;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.former-sidebar-header{padding:16px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;gap:8px}.former-sidebar-header h3{flex:1;font-size:14px;font-weight:500}.former-layers{flex:1;overflow-y:auto;padding:8px}.former-layer-row{display:flex;align-items:center;gap:6px;padding:5px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition)}.former-layer-row:hover{background:var(--bg-surface)}.former-layer-row.highlighted{background:var(--bg-overlay)}.former-layer-row.selected{background:var(--bg-surface);border-left:2px solid var(--text-primary);padding-left:8px}.layer-vis-btn,.layer-hl-btn{width:22px;height:22px;display:flex;align-items:center;justify-content:center;border:none;border-radius:var(--radius-sm);background:none;color:var(--text-subtle);cursor:pointer;font-size:14px;transition:all var(--transition)}.layer-vis-btn:hover,.layer-hl-btn:hover{background:var(--bg-overlay);color:var(--text-primary)}.layer-vis-btn.active{color:var(--text-primary)}.layer-hl-btn.active{color:var(--warning)}.layer-swatch{width:12px;height:12px;border-radius:2px;flex-shrink:0}.layer-name{font-size:13px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.layer-name.dimmed{color:var(--text-subtle)}.former-actions{padding:16px;border-top:1px solid var(--border-light)}.nav-settings-wrap{position:relative;-webkit-app-region:no-drag}.nav-settings-btn{font-size:16px}.settings-panel{position:absolute;top:100%;right:0;margin-top:4px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;min-width:220px;z-index:200;box-shadow:0 8px 24px #0006}.settings-toggle-row{display:flex;align-items:center;justify-content:space-between;padding:6px 0;font-size:13px;color:var(--text-secondary)}.settings-toggle-row input[type=checkbox]{accent-color:var(--accent)}.former-floating-actions{position:absolute;bottom:16px;left:50%;transform:translate(-50%);display:flex;gap:8px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#2a2a3ad9;padding:8px 16px;border-radius:var(--radius);z-index:10}.z-joystick{position:relative;width:100%;height:28px;background:var(--bg-base);border:1px solid var(--border);border-radius:14px;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;overflow:hidden}.z-joystick:active{cursor:grabbing}.z-joystick-track{position:absolute;top:50%;left:16px;right:16px;height:2px;background:var(--border);transform:translateY(-50%)}.z-joystick-label-l,.z-joystick-label-r{position:absolute;top:50%;transform:translateY(-50%);font-size:9px;font-weight:600;color:var(--text-subtle);pointer-events:none}.z-joystick-label-l{left:6px}.z-joystick-label-r{right:4px}.z-joystick-knob{position:absolute;top:50%;left:50%;width:20px;height:20px;background:var(--text-secondary);border-radius:50%;transform:translate(-50%,-50%);transition:left 80ms ease-out,background .1s;pointer-events:none}.z-joystick.active .z-joystick-knob{background:var(--text-primary);transition:none}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border)}.empty-state{text-align:center;padding:40px 0;color:var(--text-subtle);font-size:14px}.preset-row{display:flex;gap:8px;flex-wrap:wrap}.unwrap-layout{display:flex;gap:16px;height:calc(100vh - 140px)}.unwrap-preview{flex:1;background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius);overflow:auto;display:flex;align-items:center;justify-content:center;padding:16px}.unwrap-preview svg{max-width:100%;max-height:100%;background:#fff;border-radius:var(--radius-sm)}.unwrap-controls{width:220px;flex-shrink:0}.unwrap-sidebar{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius);padding:16px}.sidebar-icon-btn{display:inline-flex;align-items:center;gap:4px;font-size:11px}.sidebar-icon-btn.locked{background:var(--accent-dim);border-color:var(--text-secondary);color:var(--text-primary)}