:root{--tesla-red: #e82127;--bg-dark: #0e0e11;--bg-graphite: #1a1a1f;--glass: rgba(20, 20, 24, .6);--glass-border: rgba(255, 255, 255, .08);--text-main: #ffffff;--text-dim: rgba(255, 255, 255, .5);--accent-red: #e82127;--font-main: "Inter", -apple-system, system-ui, sans-serif;--radius-pro: 16px;--transition: .2s ease-out}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);font-family:var(--font-main);-webkit-font-smoothing:antialiased;overflow:hidden}.app-container{display:flex;height:100vh;width:100vw;background:radial-gradient(circle at top right,#1a1a1f,#0e0e11)}.sidebar{width:380px;height:100%;padding:2.5rem;display:flex;flex-direction:column;gap:2rem;background:var(--glass);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border-right:1px solid var(--glass-border);z-index:100;transition:transform .4s cubic-bezier(.4,0,.2,1);overflow-y:auto}.sidebar.immersive{transform:translate(-100%)}.main-designer{flex:1;position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:2rem;transition:padding .4s ease-out}.main-designer.immersive{padding:0}.label-caps{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--text-dim);font-weight:600;display:block}h1{font-size:1.25rem;font-weight:500;margin-bottom:.25rem;letter-spacing:-.02em}header p{font-size:.85rem;color:var(--text-dim);margin-bottom:.75rem}.credit-badge{margin-bottom:1.5rem}.credit-badge a{font-size:10px;color:var(--accent-red);background:#e821271a;padding:4px 8px;border-radius:6px;text-decoration:none;font-weight:700;text-transform:uppercase;letter-spacing:.05em;transition:var(--transition);display:inline-block;border:1px solid rgba(232,33,39,.2)}.credit-badge a:hover{background:#e8212733;transform:translateY(-1px);border-color:#e8212766}.canvas-scene{width:100%;max-width:900px;aspect-ratio:1;position:relative;display:flex;justify-content:center;align-items:center;touch-action:none}.canvas-shadow{position:absolute;width:80%;height:10%;bottom:5%;background:radial-gradient(ellipse at center,rgba(0,0,0,.4) 0%,transparent 70%);z-index:1;pointer-events:none}canvas{width:100%;height:100%;object-fit:contain;z-index:2;cursor:grab}canvas:active{cursor:grabbing}.label-row-collapsible{display:flex;justify-content:space-between;align-items:center;cursor:pointer;margin-bottom:.75rem}.status-badge{font-size:10px;color:var(--accent-red);background:#e821271a;padding:2px 6px;border-radius:4px;text-transform:uppercase;font-weight:700}.chevron-icon{font-size:16px;color:var(--text-dim);transition:var(--transition)}.collapsible-content{overflow:hidden;max-height:1000px;transition:max-height .4s cubic-bezier(.4,0,.2,1)}.collapsible-content.collapsed{max-height:0}.collapsed-summary{font-size:11px;color:var(--text-main);padding:.75rem;background:#ffffff0d;border-radius:8px;cursor:pointer;transition:var(--transition);text-align:center}.collapsed-summary:hover{background:#ffffff14}.vehicle-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;margin-bottom:.5rem}.v-card{background:#ffffff08;border:1px solid var(--glass-border);border-radius:12px;padding:.5rem;cursor:pointer;transition:var(--transition)}.v-card:hover{background:#ffffff0f;transform:translateY(-2px)}.v-card.selected{border-color:var(--accent-red);background:#e821270d}.v-card img{width:100%;display:block;border-radius:8px;opacity:.8;transition:var(--transition)}.v-card.selected img{opacity:1}.v-name{font-size:11px;text-align:center;margin-top:.5rem;color:var(--text-dim)}.upload-btn{width:100%;padding:2rem 1rem;background:#ffffff08;border:1px dashed var(--glass-border);border-radius:12px;text-align:center;cursor:pointer;transition:var(--transition)}.upload-btn:hover{background:#ffffff0d}.upload-btn.has-image{padding:.75rem;border-style:solid;background:#ffffff0d}.upload-preview-container{display:flex;align-items:center;gap:1rem}.thumbnail-wrapper{position:relative;width:48px;height:48px}.thumbnail-wrapper img{width:100%;height:100%;border-radius:6px;object-fit:cover;border:1px solid var(--glass-border)}.edit-overlay{position:absolute;inset:0;background:#0006;color:#fff;display:flex;align-items:center;justify-content:center;border-radius:6px;opacity:0;transition:var(--transition)}.upload-btn:hover .edit-overlay{opacity:1}.upload-text{font-size:.85rem;color:var(--text-dim)}.control-stack{display:flex;flex-direction:column;gap:1.5rem;transition:opacity .4s ease}.control-stack.disabled{opacity:.15;pointer-events:none;filter:grayscale(1)}.control-group{margin-bottom:.5rem}.icon-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.icon-label span{font-size:13px;font-weight:500}.val-text{font-size:11px;color:var(--text-dim);font-family:monospace}input[type=range]{width:100%;height:2px;background:var(--glass-border);appearance:none;border-radius:2px}input[type=range]::-webkit-slider-thumb{appearance:none;width:12px;height:12px;background:#fff;border-radius:50%;cursor:pointer;box-shadow:0 0 10px #00000080}.flip-group,.nudge-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem}.mode-pill{display:flex;background:#0006;padding:3px;border-radius:10px;gap:2px}.pill-btn{flex:1;background:transparent;border:none;color:var(--text-dim);font-size:10px;padding:8px;border-radius:7px;cursor:pointer;transition:var(--transition);border:1px solid transparent}.pill-btn:hover{color:#fff;background:#ffffff0d}.pill-btn.active{background:var(--bg-graphite);color:#fff;border-color:var(--glass-border);box-shadow:0 4px 12px #0000004d}.hud-top-right{position:absolute;top:2rem;right:2rem;display:flex;gap:.75rem;z-index:200}.hud-btn{width:40px;height:40px;background:var(--glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:12px;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}.hud-btn:hover{background:#fff;color:#000}.hud-btn.active{color:var(--accent-red);border-color:var(--accent-red)}.floating-cta{position:fixed;bottom:2rem;left:50%;transform:translate(-50%);z-index:1000;width:auto;pointer-events:none}.download-pill{pointer-events:auto;background:var(--accent-red);color:#fff;border:none;padding:1.1rem 3rem;border-radius:100px;font-size:15px;font-weight:600;letter-spacing:.5px;cursor:pointer;box-shadow:0 12px 40px #e821274d;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;gap:.8rem;white-space:nowrap;opacity:.5}.download-pill:before{content:"↓";font-size:18px}.download-pill:hover{background:#f02a31;transform:scale(1.05) translateY(-4px);box-shadow:0 15px 45px #e8212766;opacity:1}.download-pill:active{transform:scale(.98)}.download-pill:disabled{opacity:0;visibility:hidden;transform:translate(-50%) translateY(20px);pointer-events:none}.onboarding-minimal{position:absolute;text-align:center;z-index:10}h1.hero{font-size:3.5rem;font-weight:200;margin-bottom:1.5rem;letter-spacing:-.05em;opacity:.8}.hero-sub{color:var(--text-dim);font-size:1rem;font-weight:300}.highlight-pulse{animation:pulse-border 2s infinite;border-color:var(--accent-red)!important}@keyframes pulse-border{0%{box-shadow:0 0 #e8212766}70%{box-shadow:0 0 0 10px #e8212700}to{box-shadow:0 0 #e8212700}}.loading-spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.1);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;position:absolute;z-index:10}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-thumb{background:var(--glass-border);border-radius:10px}.pill-btn:active,.v-card:active,.hud-btn:active,.upload-btn:active{transform:scale(.97)}@media(max-width:868px){.app-container{flex-direction:column;overflow-y:auto;height:100vh}.sidebar{width:100%;height:auto;order:2;padding:1.5rem 1.5rem 8rem;border-right:none;border-top:1px solid var(--glass-border);background:var(--bg-dark);-webkit-backdrop-filter:none;backdrop-filter:none;transition:transform .4s cubic-bezier(.4,0,.2,1)}.sidebar.immersive{transform:translateY(100%)}.main-designer{width:100%;aspect-ratio:1;min-height:auto;order:1;flex:none;padding:1rem;background:transparent;transition:padding .4s ease-out}.main-designer.immersive{padding:0}.canvas-scene{max-width:100%}h1.hero{font-size:2rem;margin-bottom:1rem}.hero-sub{font-size:.9rem}.hud-top-right{top:1rem;right:1rem;gap:.5rem}.hud-btn{width:36px;height:36px;border-radius:10px}.vehicle-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.collapsible-content{max-height:none}header{text-align:center;margin-bottom:.5rem}.credit-badge{justify-content:center;display:flex;margin-bottom:2rem}.icon-label{display:flex;justify-content:space-between;align-items:center}}.modal-overlay{position:fixed;inset:0;background:#000c;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:2000;padding:1.5rem}.help-modal{background:#141419f2;border:1px solid var(--glass-border);border-radius:20px;width:100%;max-width:600px;max-height:85vh;overflow-y:auto;position:relative;box-shadow:0 32px 64px #00000080;animation:modalEnter .3s cubic-bezier(.4,0,.2,1)}@keyframes modalEnter{0%{opacity:0;transform:scale(.95) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-content{padding:2.5rem}.close-modal{position:absolute;top:1.5rem;right:1.5rem;background:#ffffff0d;border:none;color:#fff;width:36px;height:36px;border-radius:10px;font-size:24px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition)}.close-modal:hover{background:#e8212733;color:var(--accent-red)}.modal-content h2{font-size:1.75rem;margin-bottom:2rem;background:linear-gradient(135deg,#fff,#aaa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.modal-content section{margin-bottom:2rem}.modal-content h3{font-size:.9rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent-red);margin-bottom:1rem}.modal-content ul{list-style:none;padding:0}.modal-content li{color:var(--text-dim);font-size:.95rem;margin-bottom:.75rem;line-height:1.5}.modal-content li strong{color:var(--text-main)}.help-path{background:#ffffff0d;padding:1rem;border-radius:12px;font-family:inherit;font-weight:600;text-align:center;color:var(--text-main);border:1px solid var(--glass-border)}.help-btn{font-weight:700!important;font-size:16px!important}@media(max-width:868px){.modal-content{padding:1.5rem}}