:root{--bg:#07070c;--bg-1:#0d0d16;--bg-2:#14141f;--glass:#141420b8;--glass-strong:#0e0e18eb;--hairline:#96a0dc24;--hairline-strong:#96a0dc47;--fg:#eef0fb;--fg-dim:#aab0cc;--fg-faint:#6f7596;--accent:#7c9cff;--accent-soft:#7c9cff29;--unit:#34e7c4;--unit-soft:#34e7c42e;--point:#e9ecfb;--warn:#ffb454;--danger:#ff6b81;--erdos:#c792ea;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, system-ui, sans-serif;--mono:ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, monospace;--r-sm:8px;--r-md:14px;--r-lg:22px;--shadow:0 18px 50px -12px #000000b3;--sat:env(safe-area-inset-top,0px);--sab:env(safe-area-inset-bottom,0px);--sal:env(safe-area-inset-left,0px);--sar:env(safe-area-inset-right,0px);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{width:100%;height:100%;margin:0}html{height:100dvh}body{font-family:var(--font);background:var(--bg);color:var(--fg);overscroll-behavior:none;-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;touch-action:none;overflow:hidden}#root{isolation:isolate;position:relative}button{color:inherit;cursor:pointer;background:0 0;border:none;font-family:inherit}.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}.sub{vertical-align:sub;font-size:.62em}.app{flex-direction:column;display:flex;position:fixed;inset:0}.plane-host{z-index:0;position:absolute;inset:0}.plane-host canvas{touch-action:none;width:100%;height:100%;display:block}.statsbar{top:calc(var(--sat) + 10px);left:calc(var(--sal) + 10px);right:calc(var(--sar) + 10px);z-index:3;pointer-events:none;align-items:stretch;gap:8px;display:flex;position:absolute}.statsbar__brand{pointer-events:auto;border-radius:var(--r-md);background:var(--glass);-webkit-backdrop-filter:blur(18px)saturate(1.4);border:1px solid var(--hairline);flex-direction:column;justify-content:center;padding:8px 12px;display:flex}.statsbar__title{letter-spacing:.2px;font-size:12px;font-weight:650;line-height:1.1}.statsbar__sub{color:var(--fg-faint);text-transform:uppercase;letter-spacing:.9px;font-size:9.5px}.metrics{pointer-events:auto;border-radius:var(--r-md);background:var(--glass);-webkit-backdrop-filter:blur(18px)saturate(1.4);border:1px solid var(--hairline);flex:1;grid-template-columns:repeat(3,1fr);gap:6px;min-width:0;padding:7px 10px;display:grid}.metric{flex-direction:column;align-items:flex-start;min-width:0;display:flex}.metric__label{color:var(--fg-faint);text-transform:uppercase;letter-spacing:.7px;white-space:nowrap;font-size:9px}.metric__value{white-space:nowrap;text-overflow:ellipsis;max-width:100%;font-size:16px;font-weight:600;line-height:1.15;overflow:hidden}.metric__value--unit{color:var(--unit)}.metric__value--exp{color:var(--accent)}.metric__value.busy{opacity:.5}.fab-col{right:calc(var(--sar) + 12px);bottom:calc(var(--sheet-peek,134px) + var(--sab) + 14px);z-index:4;flex-direction:column;gap:10px;transition:bottom .28s cubic-bezier(.22,1,.36,1);display:flex;position:absolute}.fab{background:var(--glass-strong);border:1px solid var(--hairline-strong);-webkit-backdrop-filter:blur(16px);width:46px;height:46px;box-shadow:var(--shadow);color:var(--fg);border-radius:50%;place-items:center;transition:transform .12s,background .2s,color .2s;display:grid}.fab:active{transform:scale(.9)}.fab--on{background:var(--accent);color:#0a0a16;border-color:#0000}.fab svg{width:22px;height:22px}.sheet{z-index:5;background:var(--glass-strong);-webkit-backdrop-filter:blur(26px)saturate(1.5);border-top:1px solid var(--hairline-strong);border-radius:var(--r-lg) var(--r-lg) 0 0;max-height:86dvh;transform:translateY(var(--sheet-offset,0));padding-bottom:var(--sab);will-change:transform;flex-direction:column;transition:transform .32s cubic-bezier(.22,1,.36,1);display:flex;position:absolute;bottom:0;left:0;right:0;box-shadow:0 -22px 60px -20px #000000d9}.sheet--dragging{transition:none}.sheet__grip{touch-action:none;cursor:grab;flex-direction:column;flex:none;align-items:center;gap:6px;padding:9px 0 4px;display:flex}.sheet__bar{background:var(--hairline-strong);border-radius:99px;width:38px;height:4px}.sheet__griplabel{text-transform:uppercase;letter-spacing:.8px;color:var(--fg-faint);align-items:center;gap:5px;font-size:10.5px;font-weight:600;display:flex}.sheet__tabs{scrollbar-width:none;flex:none;gap:4px;padding:4px 12px 10px;display:flex;overflow-x:auto}.sheet__tabs::-webkit-scrollbar{display:none}.tab{color:var(--fg-dim);white-space:nowrap;background:0 0;border:1px solid #0000;border-radius:99px;flex:none;padding:7px 13px;font-size:12.5px;font-weight:550;transition:color .15s,background .15s,border-color .15s}.tab--active{color:var(--fg);background:var(--accent-soft);border-color:var(--hairline-strong)}.sheet__body{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;flex:1;min-height:0;padding:4px 16px 22px;overflow-y:auto}.field{margin:16px 0}.field:first-child{margin-top:6px}.field__head{justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:9px;display:flex}.field__label{color:var(--fg);font-size:13px;font-weight:600}.field__value{color:var(--accent);font-size:13px}.field__hint{color:var(--fg-faint);margin-top:7px;font-size:11.5px;line-height:1.45}.segments{gap:7px;display:grid}.segment{border-radius:var(--r-md);background:var(--bg-2);border:1px solid var(--hairline);text-align:left;align-items:center;gap:11px;padding:12px 13px;transition:border-color .15s,background .15s;display:flex}.segment--active{border-color:var(--accent);background:var(--accent-soft)}.segment__swatch{border-radius:4px;flex:none;width:12px;height:12px;box-shadow:0 0 12px}.segment__text{min-width:0}.segment__name{font-size:13.5px;font-weight:600;display:block}.segment__formula{font-family:var(--mono);color:var(--fg-dim);margin-top:2px;font-size:11px;display:block}.slider{appearance:none;background:0 0;width:100%;height:30px;margin:0}.slider::-webkit-slider-runnable-track{background:linear-gradient(90deg, var(--accent) 0%, var(--accent) var(--fill,50%), var(--bg-2) var(--fill,50%), var(--bg-2) 100%);border-radius:99px;height:5px}.slider::-moz-range-track{background:var(--bg-2);border-radius:99px;height:5px}.slider::-moz-range-progress{background:var(--accent);border-radius:99px;height:5px}.slider::-webkit-slider-thumb{appearance:none;border:5px solid var(--accent);background:#fff;border-radius:50%;width:25px;height:25px;margin-top:-10px;box-shadow:0 3px 10px #00000080}.slider::-moz-range-thumb{border:5px solid var(--accent);background:#fff;border-radius:50%;width:22px;height:22px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{background:var(--bg-2);border:1px solid var(--hairline);color:var(--fg-dim);border-radius:99px;padding:9px 14px;font-size:12.5px;font-weight:550;transition:transform .12s,border-color .15s,color .15s}.chip:active{transform:scale(.94)}.chip--on{border-color:var(--accent);color:var(--fg);background:var(--accent-soft)}.chip--danger{color:var(--danger);border-color:#ff6b814d}.toggle-row{border-bottom:1px solid var(--hairline);justify-content:space-between;align-items:center;gap:14px;padding:11px 0;display:flex}.toggle-row:last-child{border-bottom:none}.toggle-row__text{font-size:13px}.toggle-row__desc{color:var(--fg-faint);margin-top:2px;font-size:11px;line-height:1.4}.switch{background:var(--bg-2);border:1px solid var(--hairline);border-radius:99px;flex:none;width:46px;height:28px;transition:background .2s;position:relative}.switch--on{background:var(--accent);border-color:#0000}.switch:after{content:"";background:#fff;border-radius:50%;width:22px;height:22px;transition:transform .2s cubic-bezier(.22,1,.36,1);position:absolute;top:2px;left:2px}.switch--on:after{transform:translate(18px)}.chart-card{background:var(--bg-1);border:1px solid var(--hairline);border-radius:var(--r-md);margin:14px 0;padding:12px}.chart-card__title{color:var(--fg);margin-bottom:2px;font-size:12px;font-weight:600}.chart-card__cap{color:var(--fg-faint);margin-bottom:10px;font-size:11px;line-height:1.4}.chart-canvas{border-radius:8px;width:100%;display:block}.legend{flex-wrap:wrap;gap:10px 16px;margin-top:10px;display:flex}.legend__item{color:var(--fg-dim);align-items:center;gap:6px;font-size:11px;display:flex}.legend__dot{border-radius:3px;flex:none;width:9px;height:9px}.solver-bar{gap:8px;margin:6px 0 4px;display:flex}.solver-btn{border-radius:var(--r-md);background:var(--bg-2);border:1px solid var(--hairline);color:var(--fg);flex:1;justify-content:center;align-items:center;gap:7px;padding:13px 12px;font-size:13.5px;font-weight:650;transition:transform .12s,background .18s,border-color .18s;display:flex}.solver-btn:active{transform:scale(.97)}.solver-btn--go{background:var(--unit);color:#06231d;border-color:#0000}.solver-btn--stop{background:var(--warn);color:#2a1a04;border-color:#0000}.solver-stats{grid-template-columns:repeat(4,1fr);gap:7px;margin-top:12px;display:grid}.solver-stat{background:var(--bg-1);border:1px solid var(--hairline);border-radius:var(--r-sm);flex-direction:column;gap:2px;min-width:0;padding:9px 8px;display:flex}.solver-stat__label{text-transform:uppercase;letter-spacing:.5px;color:var(--fg-faint);white-space:nowrap;text-overflow:ellipsis;font-size:8.5px;overflow:hidden}.solver-stat__value{white-space:nowrap;text-overflow:ellipsis;font-size:15px;font-weight:600;overflow:hidden}.prose{color:var(--fg-dim);font-size:14px;line-height:1.62}.prose h3{color:var(--fg);margin:22px 0 8px;font-size:15.5px;font-weight:650}.prose h3:first-child{margin-top:6px}.prose p{margin:0 0 13px}.prose strong{color:var(--fg);font-weight:600}.prose .eq{font-family:var(--mono);color:var(--unit);background:var(--bg-1);border:1px solid var(--hairline);border-radius:var(--r-sm);margin:13px 0;padding:11px 13px;font-size:13px;display:block;overflow-x:auto}.prose .callout{border-left:3px solid var(--erdos);border-radius:0 var(--r-sm) var(--r-sm) 0;background:#c792ea12;margin:14px 0;padding:11px 14px;font-size:13px}.prose a{color:var(--accent);border-bottom:1px solid var(--accent-soft);text-decoration:none}.source-list{margin:8px 0 0;padding:0;list-style:none}.source-list li{margin-bottom:6px;font-size:11.5px}.source-list a{color:var(--accent);word-break:break-all}.import-area{resize:vertical;width:100%;min-height:110px;font-family:var(--mono);color:var(--fg);background:var(--bg-1);border:1px solid var(--hairline);border-radius:var(--r-sm);outline:none;padding:10px 12px;font-size:12px;line-height:1.5}.import-area:focus{border-color:var(--accent)}.import-area::placeholder{color:var(--fg-faint)}.note{color:var(--fg-faint);background:var(--bg-1);border:1px solid var(--hairline);border-radius:var(--r-sm);margin:14px 0;padding:10px 12px;font-size:11.5px;line-height:1.5}.kbd-hint{left:50%;bottom:calc(var(--sheet-peek,134px) + var(--sab) + 20px);z-index:2;color:var(--fg-faint);background:var(--glass);border:1px solid var(--hairline);pointer-events:none;opacity:0;white-space:nowrap;border-radius:99px;padding:6px 12px;font-size:11px;animation:6s forwards hintfade;position:absolute;transform:translate(-50%)}@keyframes hintfade{0%,8%{opacity:0}16%,70%{opacity:1}to{opacity:0}}@media (width>=680px){.statsbar{width:min(620px,100% - 24px);left:50%;right:auto;transform:translate(-50%)}.sheet{width:min(620px,100%);transform:translateX(-50%) translateY(var(--sheet-offset,0));left:50%;right:auto}.fab-col{right:max(calc(50% - 310px), calc(var(--sar) + 12px))}.kbd-hint{left:50%}}@media (prefers-reduced-motion:reduce){*{transition-duration:.01ms!important;animation-duration:.01ms!important}}