*{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica Neue,Helvetica,Arial,sans-serif}#calculator{position:absolute;top:0;left:0;right:0;bottom:0}.overlay,.video-controls,.status-text{position:absolute;z-index:50}.pill-btn,.icon-btn,.ctrl-btn{font-family:inherit;border:none;cursor:pointer;background:#fff;color:#37474f;transition:background-color .12s ease,box-shadow .12s ease,color .12s ease}.corner-top{top:14px;right:64px;display:flex;align-items:flex-start;gap:8px}.pill-btn{display:flex;align-items:center;gap:7px;padding:8px 16px 8px 13px;border-radius:20px;font-size:13px;font-weight:600;color:#fff;background:#2464b4;box-shadow:0 1px 3px #00000040;white-space:nowrap}.pill-btn:hover{background:#1d5497}.pill-btn:active{background:#164077}.icon-btn{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 1px 3px #0003}.icon-btn:hover{background:#f2f6fb;color:#2464b4}.icon-btn.active{background:#2464b4;color:#fff}.settings-panel{position:absolute;top:44px;right:0;width:190px;background:#fff;border-radius:10px;box-shadow:0 4px 18px #00000038;padding:12px 14px 14px}.settings-panel.hidden{display:none}.settings-title{font-size:12px;font-weight:700;color:#37474f;margin-bottom:8px;letter-spacing:.2px}.settings-panel input[type=range]{width:100%;accent-color:#2464b4}.detail-labels{display:flex;justify-content:space-between;font-size:10.5px;color:#8a97a0;margin-top:3px}.settings-check{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:12px;font-weight:600;color:#37474f;cursor:pointer;-webkit-user-select:none;user-select:none}.settings-check:first-of-type{margin-top:12px;padding-top:10px;border-top:1px solid #e8eef3}.settings-check input{width:14px;height:14px;margin:0;accent-color:#2464b4;cursor:pointer;flex-shrink:0}.status-text{top:14px;left:66px;max-width:46vw;background:#fff;color:#37474f;font-size:12.5px;font-weight:500;padding:8px 14px;border-radius:18px;box-shadow:0 1px 3px #0003;display:flex;align-items:center;gap:8px;pointer-events:none}.status-text.hidden{display:none}.status-dot{width:7px;height:7px;border-radius:50%;background:#2464b4;flex-shrink:0;animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1.1)}}.model-loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;align-items:center;justify-content:center;background:#37474f8c;backdrop-filter:grayscale(1) brightness(.85);-webkit-backdrop-filter:grayscale(1) brightness(.85)}.model-loading-overlay.hidden{display:none}.model-loading-panel{width:min(360px,calc(100vw - 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