:root{--bg-deep: #07070d;--bg-surface: #0e0e1a;--bg-elevated: rgba(255, 255, 255, .04);--glass-bg: rgba(10, 10, 14, .45);--glass-border: rgba(255, 255, 255, .07);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .35);--text-primary: #e8e8f0;--text-secondary: rgba(255, 255, 255, .5);--text-muted: rgba(255, 255, 255, .28);--accent-cyan: #00f0ff;--accent-magenta: #ff00e5;--accent-lime: #39ff14;--accent-blue: #4d6dff;--accent-pink: #ff2d6b;--accent-gold: #ffd700;--accent-purple: #b400ff;--font-primary: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-display: "Outfit", "Inter", sans-serif;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-smooth: .3s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .4s cubic-bezier(.34, 1.56, .64, 1)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:var(--bg-deep);font-family:var(--font-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.hidden{display:none!important}#loading-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:var(--bg-deep);transition:opacity .8s ease,visibility .8s ease}#loading-screen.fade-out{opacity:0;visibility:hidden}.loader-content{display:flex;flex-direction:column;align-items:center;gap:28px}.loader-logo{width:160px;height:auto;opacity:.9;filter:drop-shadow(0 0 12px rgba(255,255,255,.06));animation:logo-breathe 3s ease-in-out infinite}@keyframes logo-breathe{0%,to{opacity:.85}50%{opacity:1}}.loader-subtitle{color:#ffffff4d;font-size:12px;font-weight:400;letter-spacing:1px;text-transform:uppercase}.loader-bar{width:140px;height:1.5px;background:#ffffff0f;border-radius:var(--radius-full);overflow:hidden}.loader-bar-fill{height:100%;width:0%;background:#fff6;border-radius:var(--radius-full);animation:loader-progress 3s ease-in-out forwards}@keyframes loader-progress{0%{width:0%}30%{width:40%}60%{width:65%}85%{width:80%}to{width:95%}}#app{position:relative;width:100vw;height:100vh;overflow:hidden;background:var(--bg-deep)}#webcam{display:none}canvas{position:absolute;top:0;left:0;width:100%;height:100%}#camera-canvas{z-index:1}#drawing-canvas{z-index:2}#ui-canvas{z-index:3;pointer-events:none}#gesture-hud{position:fixed;bottom:24px;left:50%;transform:translate(-50%);z-index:100;display:flex;align-items:center;gap:10px;padding:10px 22px;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-full);box-shadow:var(--glass-shadow);transition:var(--transition-smooth);-webkit-user-select:none;user-select:none}#gesture-icon{font-size:22px;line-height:1;transition:var(--transition-bounce)}#gesture-label{font-size:13px;font-weight:500;color:var(--text-secondary);letter-spacing:.5px;text-transform:uppercase}#gesture-hud.drawing,#gesture-hud.erasing,#gesture-hud.grabbing{border-color:#ffffff4d;box-shadow:0 4px 30px #ffffff26}#toolbar{position:fixed;top:50%;right:20px;transform:translateY(-50%);z-index:100;display:flex;flex-direction:column;align-items:center;gap:12px;padding:18px 14px;background:var(--glass-bg);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--glass-shadow);transition:var(--transition-smooth)}#toolbar:hover{border-color:#ffffff1f}.toolbar-section{display:flex;flex-direction:column;align-items:center;gap:8px}.toolbar-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:1.2px;color:var(--text-muted)}.toolbar-divider{width:36px;height:1px;background:var(--glass-border)}#color-palette{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.color-swatch{width:26px;height:26px;border-radius:var(--radius-full);border:none;background:radial-gradient(circle at 35% 35%,color-mix(in srgb,var(--swatch-color) 100%,white 40%) 0%,var(--swatch-color) 50%,color-mix(in srgb,var(--swatch-color) 100%,black 30%) 100%);cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;outline:none;box-shadow:0 1px 3px #0006,inset 0 1px 1px #ffffff40}.color-swatch:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:var(--radius-full);background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.35) 0%,transparent 55%);pointer-events:none}.color-swatch:hover{transform:scale(1.2);box-shadow:0 0 12px color-mix(in srgb,var(--swatch-color) 50%,transparent),0 2px 6px #0000004d,inset 0 1px 1px #ffffff40}.color-swatch.active{transform:scale(1.12);box-shadow:0 0 16px color-mix(in srgb,var(--swatch-color) 55%,transparent),0 2px 8px #0000004d,inset 0 1px 1px #fff3}.color-swatch.active:after{content:"";position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border-radius:var(--radius-full);border:1.5px solid rgba(255,255,255,.35);animation:swatch-ring 2s ease-in-out infinite}@keyframes swatch-ring{0%,to{opacity:.25;transform:scale(1)}50%{opacity:.5;transform:scale(1.06)}}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100px;height:4px;background:#ffffff14;border-radius:var(--radius-full);outline:none;cursor:pointer;transform:rotate(-90deg);margin:30px 0}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:var(--radius-full);background:#ffffffd9;border:2px solid var(--bg-deep);box-shadow:0 0 8px #ffffff26;cursor:pointer;transition:var(--transition-fast)}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2);box-shadow:0 0 12px #ffffff40}input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:var(--radius-full);background:#ffffffd9;border:2px solid var(--bg-deep);box-shadow:0 0 8px #ffffff26;cursor:pointer}.slider-value{font-size:10px;color:var(--text-muted);font-weight:500;font-variant-numeric:tabular-nums}.toolbar-actions{display:flex;flex-direction:column;gap:6px}.toolbar-btn{width:38px;height:38px;border:1px solid var(--glass-border);border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition-fast);outline:none}.toolbar-btn:hover{background:#ffffff0f;color:var(--text-primary);border-color:#ffffff26;transform:scale(1.05)}.toolbar-btn.active{background:#ffffff14;color:#ffffffe6;border-color:#fff3}.toolbar-btn svg{width:18px;height:18px}#camera-mode-indicator{position:fixed;top:20px;left:20px;z-index:100;padding:6px 14px;background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:var(--radius-full);font-size:11px;font-weight:500;color:var(--text-secondary);letter-spacing:.5px;transition:var(--transition-smooth);cursor:pointer;-webkit-user-select:none;user-select:none}#camera-mode-indicator:hover{border-color:#ffffff26}#camera-mode-indicator.dark-mode{color:var(--accent-purple);border-color:#b400ff33}#onboarding-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#07070d99;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:opacity .5s ease,visibility .5s ease}#onboarding-modal.hidden{opacity:0;visibility:hidden}.onboarding-content{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:40px;width:90%;max-width:440px;text-align:center;box-shadow:0 20px 60px #00000080,inset 0 1px 1px #ffffff1a;transform:translateY(0);transition:transform .5s cubic-bezier(.16,1,.3,1)}#onboarding-modal.hidden .onboarding-content{transform:translateY(20px)}.onboarding-logo{height:60px;margin-bottom:24px;opacity:.9}.onboarding-title{font-family:var(--font-display);font-size:24px;font-weight:600;color:var(--text-primary);margin-bottom:30px;letter-spacing:-.5px}.onboarding-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px;text-align:left}.onboarding-item{display:flex;align-items:flex-start;gap:14px}.onboarding-icon{font-size:24px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);width:44px;height:44px;display:flex;align-items:center;justify-content:center}.onboarding-text{display:flex;flex-direction:column;gap:4px}.onboarding-text strong{font-size:14px;color:var(--text-primary);font-weight:600}.onboarding-text span{font-size:12px;color:var(--text-secondary);line-height:1.4}.btn-primary{background:#ffffffe6;color:#000;border:none;border-radius:var(--radius-full);padding:14px 40px;font-size:15px;font-weight:600;font-family:var(--font-sans);cursor:pointer;transition:all .2s ease;box-shadow:0 4px 14px #fff3}.btn-primary:hover{background:#fff;transform:translateY(-2px);box-shadow:0 6px 20px #ffffff4d}.btn-primary:active{transform:translateY(0)}@keyframes fade-in{0%{opacity:0}to{opacity:1}}#app:not(.hidden){animation:fade-in .5s ease-out}input[type=range]:active::-webkit-slider-thumb{transform:scale(1.3)}*:focus-visible{outline:2px solid rgba(255,255,255,.8);outline-offset:2px}@media (max-width: 768px){#toolbar{right:10px;padding:12px 10px;gap:8px}.color-swatch{width:24px;height:24px}input[type=range]{width:80px;margin:25px 0}.toolbar-btn{width:32px;height:32px}#gesture-hud{bottom:16px;padding:8px 16px}}