:root{--primary-purple:#8b5cf6;--primary-cyan:#06b6d4;--accent-pink:#ec4899;--bg-dark:#07090e;--surface-glass:#0f172abf;--border-glass:#ffffff1f;--text-main:#f8fafc;--text-muted:#94a3b8}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{background-color:var(--bg-dark);width:100%;height:100%;color:var(--text-main);-webkit-user-select:none;user-select:none;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow:hidden}#ar-container{width:100vw;height:100vh;height:100dvh;position:fixed;top:0;left:0;overflow:hidden}#ar-video{object-fit:cover;z-index:1;width:100%;height:100%;position:absolute;top:0;left:0}#ar-canvas{z-index:2;touch-action:none;width:100%;height:100%;position:absolute;top:0;left:0}#welcome-screen{z-index:10;padding:calc(24px + env(safe-area-inset-top,0px)) 24px calc(32px + env(safe-area-inset-bottom,0px));background:radial-gradient(circle at 50% 30%, #1e113a 0%, var(--bg-dark) 75%);text-align:center;flex-direction:column;justify-content:space-between;align-items:center;display:flex;position:absolute;top:0;bottom:0;left:0;right:0}.brand-badge{color:#c084fc;letter-spacing:.04em;text-transform:uppercase;background:#8b5cf626;border:1px solid #8b5cf659;border-radius:9999px;align-items:center;gap:6px;padding:6px 14px;font-size:12px;font-weight:600;display:inline-flex}.hero-content{max-width:360px;margin:auto 0}.hero-title{background:linear-gradient(135deg,#fff 30%,#38bdf8 70%,#c084fc 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:12px;font-size:36px;font-weight:800;line-height:1.15}.hero-subtitle{color:var(--text-muted);margin-bottom:24px;font-size:15px;line-height:1.5}.instructions-grid{text-align:left;grid-template-columns:1fr;gap:10px;margin-bottom:28px;display:grid}.instruction-item{background:var(--surface-glass);border:1px solid var(--border-glass);color:var(--text-main);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:12px;align-items:center;gap:12px;padding:12px 14px;font-size:13px;display:flex}.instruction-icon{font-size:18px}.cta-container{width:100%;max-width:340px}.btn-primary{color:#fff;cursor:pointer;background:linear-gradient(135deg,#8b5cf6 0%,#06b6d4 100%);border:none;border-radius:16px;justify-content:center;align-items:center;gap:8px;width:100%;padding:16px 24px;font-size:17px;font-weight:700;transition:transform .15s,opacity .15s;display:flex;box-shadow:0 10px 25px -5px #8b5cf680}.btn-primary:active{opacity:.9;transform:scale(.97)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.security-note{color:#64748b;justify-content:center;align-items:center;gap:6px;margin-top:14px;font-size:11px;display:flex}#ar-overlay{z-index:5;pointer-events:none;display:none;position:absolute;top:0;bottom:0;left:0;right:0}.ar-header{top:calc(16px + env(safe-area-inset-top,0px));justify-content:space-between;align-items:center;display:flex;position:absolute;left:16px;right:16px}.ar-header-left,.ar-header-right{gap:10px;display:flex}.btn-icon{pointer-events:auto;background:var(--surface-glass);border:1px solid var(--border-glass);color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(10px);border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:18px;transition:transform .15s;display:flex;box-shadow:0 4px 12px #0000004d}.btn-icon:active{transform:scale(.92)}#hint-banner{bottom:calc(24px + env(safe-area-inset-bottom,0px));color:#38bdf8;text-align:center;-webkit-backdrop-filter:blur(12px);opacity:0;pointer-events:none;background:#0f172ad9;border:1px solid #38bdf866;border-radius:14px;padding:12px 18px;font-size:14px;font-weight:600;transition:opacity .3s;position:absolute;left:20px;right:20px;box-shadow:0 10px 25px #00000080}#error-screen{z-index:20;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);text-align:center;background:#07090ef2;flex-direction:column;justify-content:center;align-items:center;padding:24px;display:none;position:absolute;top:0;bottom:0;left:0;right:0}.error-card{background:#111827;border:1px solid #ef44444d;border-radius:20px;max-width:320px;padding:28px 24px}.error-icon{margin-bottom:16px;font-size:42px}.error-title{color:#f87171;margin-bottom:8px;font-size:20px;font-weight:700}.error-message{color:var(--text-muted);margin-bottom:24px;font-size:14px;line-height:1.5}#threat-vignette{pointer-events:none;opacity:0;z-index:4;background:radial-gradient(circle,#0000 55%,#ef444473 100%);transition:opacity .4s;position:absolute;top:0;bottom:0;left:0;right:0}#threat-vignette.active{opacity:1;animation:1.2s ease-in-out infinite alternate threatPulse}@keyframes threatPulse{0%{opacity:.35}to{opacity:.85}}#shutter-flash{opacity:0;pointer-events:none;z-index:50;background:#fff;transition:opacity .3s;position:absolute;top:0;bottom:0;left:0;right:0}#shutter-flash.flash{opacity:.85;transition:none}.spinner{border:3px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}