:root{--bg: #f4f5f7;--panel: #ffffff;--ink: #1d2128;--muted: #5f6774;--line: #dde1e7;--accent: #6a1b9a;--accent-ink: #ffffff;--stage: #24272c;--ok: #2e7d32;--overlap: #b45309;--gap: #c62828;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);-webkit-text-size-adjust:100%}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}.app{display:grid;grid-template-columns:1fr 360px;grid-template-rows:auto 1fr auto;grid-template-areas:"top top" "stage panel" "foot foot";height:100dvh}.topbar{grid-area:top;display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:8px 12px;background:var(--panel);border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:.02em;margin-right:8px}.brand-sub{font-weight:400;color:var(--muted);font-size:13px;margin-left:4px}.tools,.history{display:flex;gap:4px;flex-wrap:wrap}.history{margin-left:auto}.btn{font:inherit;font-size:14px;min-height:36px;padding:6px 12px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;touch-action:manipulation}.btn:hover:not(:disabled){border-color:#b8bfca}.btn:disabled{opacity:.45;cursor:default}.btn.active,.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn.next:not(.active){border-color:var(--accent);box-shadow:0 0 0 2px #6a1b9a33}.btn.small{min-height:30px;font-size:13px;padding:4px 10px}.link{border:0;background:none;color:var(--accent);text-decoration:underline;padding:0;font:inherit;cursor:pointer}.stage{grid-area:stage;position:relative;overflow:hidden;background:var(--stage);min-height:0}.canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;touch-action:none;user-select:none;-webkit-user-select:none;display:block}.handle{cursor:grab}.welcome{position:absolute;top:0;right:0;bottom:0;left:0;margin:auto;max-width:460px;height:fit-content;padding:24px;background:var(--panel);border-radius:12px;text-align:center}.welcome h1{font-size:20px;margin:0 0 8px}.welcome p{color:var(--muted);line-height:1.5}.hint{position:absolute;left:12px;right:12px;top:12px;width:fit-content;max-width:calc(100% - 24px);padding:6px 10px;border-radius:8px;background:#000000a6;color:#fff;font-size:13px;pointer-events:none}.hint-sub{opacity:.7}.error{position:absolute;left:12px;bottom:12px;right:12px;width:fit-content;padding:8px 12px;border-radius:8px;background:#fdecea;color:#8a1c1c;font-size:14px}.error button{border:0;background:none;font-size:16px;cursor:pointer}.panel{grid-area:panel;overflow-y:auto;background:var(--panel);border-left:1px solid var(--line);padding:4px 14px 16px;min-height:0}.panel section{padding:10px 0;border-bottom:1px solid var(--line)}.panel h2{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:4px 0 8px}.panel select{font:inherit;font-size:14px;min-height:34px;width:100%;border-radius:8px;border:1px solid var(--line);background:#fff;padding:4px 8px}.muted{color:var(--muted);font-size:14px;margin:4px 0}.small{font-size:12px}.row{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}.params{display:grid;gap:10px;margin-bottom:10px}.field{display:grid;gap:4px;font-size:14px}.field-label{color:var(--ink)}.unit{color:var(--muted)}.field-row{display:flex;gap:8px;align-items:center}.slider{position:relative;flex:1;min-width:0;padding-bottom:8px}.slider input[type=range]{width:100%;margin:0;accent-color:var(--accent);height:28px;display:block}.default-mark{position:absolute;bottom:0;width:14px;height:12px;margin-left:-7px;padding:0;border:0;background:none;cursor:pointer}.default-mark:after{content:"";position:absolute;left:50%;bottom:1px;margin-left:-5px;border:5px solid transparent;border-bottom:6px solid #9aa3af;border-top:0}.default-mark.at-default:after{border-bottom-color:var(--accent)}.reset{width:30px;height:30px;border-radius:6px;border:1px solid var(--line);background:#fff;color:var(--accent);font-size:16px;cursor:pointer;flex:0 0 auto}.reset:disabled{color:#c4c9d1;cursor:default}.field-check{display:flex;gap:8px;align-items:center;font-size:14px}.field-check input{width:18px;height:18px;accent-color:var(--accent)}.num{width:72px;font:inherit;font-size:14px;padding:6px 8px;border:1px solid var(--line);border-radius:6px;text-align:right}.num.wide{width:110px}.readouts{margin:0;display:grid;gap:2px;font-size:14px}.readout{display:flex;justify-content:space-between;gap:12px;padding:3px 0}.readout dt{color:var(--muted)}.readout dd{margin:0;font-variant-numeric:tabular-nums;text-align:right}.rel{font-weight:600}.rel-tangent{color:var(--ok)}.rel-overlap{color:var(--overlap)}.rel-gap{color:var(--gap)}.warnings{list-style:none;margin:0 0 8px;padding:0;display:grid;gap:4px}.warn{font-size:13px;padding:6px 8px;border-radius:6px}.warn-info{background:#eef3fb;color:#27446e}.warn-warn{background:#fff4e5;color:#7a4100}.warn-error{background:#fdecea;color:#8a1c1c}.candidates{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scroll-snap-type:x proximity}.cand{flex:1 1 0;max-width:220px;scroll-snap-align:start;display:grid;gap:2px;padding:6px;border:2px solid var(--line);border-radius:10px;background:#fff;text-align:left;font:inherit;cursor:pointer}.cand-active{border-color:var(--accent)}.cand-svg{width:100%;aspect-ratio:1;background:var(--stage);border-radius:6px}.cand-label{font-size:12px;font-weight:600}.cand-rel{font-size:11px}.disclaimer{grid-area:foot;font-size:12px;color:var(--muted);padding:6px 12px;background:var(--panel);border-top:1px solid var(--line)}@media (max-width: 900px),(orientation: portrait) and (max-width: 1100px){.app{grid-template-columns:1fr;grid-template-rows:auto minmax(45dvh,1fr) auto auto;grid-template-areas:"top" "stage" "panel" "foot"}.panel{border-left:0;border-top:1px solid var(--line);max-height:42dvh}}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:grid;place-items:center;z-index:50;padding:16px}.modal{background:var(--panel);border-radius:12px;padding:20px 22px;max-width:420px;width:100%;max-height:calc(100dvh - 32px);overflow-y:auto}.modal h2{font-size:18px;margin:0 0 12px}.qr{display:block;width:min(260px,70vw);height:auto;margin:4px auto 12px;image-rendering:pixelated}.steps{margin:0 0 8px;padding-left:20px;font-size:14px;line-height:1.6}.error-text{color:#8a1c1c;font-size:14px}.row.center{justify-content:center}.phone{min-height:100dvh;padding:16px;display:flex;flex-direction:column;gap:16px;background:var(--bg)}.phone-card{background:var(--panel);border-radius:12px;padding:20px;text-align:center}.phone-button{width:100%;min-height:72px;font-size:20px;border-radius:12px}.phone-big{font-size:22px;font-weight:700;color:var(--ok);margin:4px 0 8px}.phone-foot{margin-top:auto;text-align:center}