@font-face{font-family:JetBrains Mono;src:url("../fonts/jetbrains-mono-KBKQHXU4.woff2") format("woff2");font-weight:400 800;font-display:optional}@font-face{font-family:Space Grotesk;src:url("../fonts/space-grotesk-SBOLQS73.woff2") format("woff2");font-weight:400 700;font-display:optional}:root{--rail: #eef0f3;--app: #f6f7f9;--panel: #ffffff;--canvas: #fbfcfd;--grid: #edf0f4;--grid-major: #dde2e8;--line: #d8dde4;--line-strong: #b9c0ca;--ink: #0e1116;--muted: #525a66;--accent: #f08c00;--accent-soft: #fff1d6;--ok: #2b8a3e;--sin: #e8590c;--sin-ink: #c2410c;--sin-soft: #fff0e6;--asin: #a3360a;--cos: #1098ad;--cos-ink: #0b7285;--cos-soft: #e3f7fa;--acos: #0a5866;--tan: #7950f2;--tan-ink: #6741d9;--tan-soft: #f1ecff;--atan: #4c2fb0;--mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;--sans: "Space Grotesk", "JetBrains Mono", system-ui, -apple-system, "Segoe UI", sans-serif;--r: 6px;--tabbar: 62px;--label: #343b46;--tool-h: clamp(440px, calc(100vh - 150px) , 820px);color-scheme:light}:root[data-theme=dark]{--rail: #14171c;--app: #101317;--panel: #181c22;--canvas: #13161b;--grid: #1b2027;--grid-major: #252b34;--line: #2a3039;--line-strong: #46505d;--ink: #e9edf2;--muted: #a2abb8;--label: #c9d0da;--accent: #ffa94d;--accent-soft: #3a2a12;--ok: #51cf66;--sin: #ff8a3d;--sin-ink: #ffa066;--sin-soft: #2e1d12;--asin: #ffc09a;--cos: #22b8cf;--cos-ink: #4fd1e3;--cos-soft: #0f2a30;--acos: #99e9f2;--tan: #9775fa;--tan-ink: #b197fc;--tan-soft: #221a3b;--atan: #d0bfff;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{margin:0;background:var(--app);color:var(--ink);font:400 16.5px/1.6 var(--sans)}svg{display:block;max-width:100%}a{color:inherit;text-underline-offset:3px;text-decoration-color:var(--line-strong)}a:hover{text-decoration-color:currentColor}:focus-visible{outline:2px solid var(--tan);outline-offset:2px}button{font:inherit}.mono,.num{font-family:var(--mono);font-variant-numeric:tabular-nums}.skip{position:absolute;left:-999px;top:6px;background:var(--ink);color:var(--panel);padding:8px 12px;z-index:50;border-radius:var(--r)}.skip:focus{left:6px}.cap{font:600 11px/1.2 var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.sprite{position:absolute;width:0;height:0;overflow:hidden}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}.app{display:grid;grid-template-columns:264px minmax(0,1fr);min-height:100vh}.rail{position:sticky;top:0;height:100vh;overflow-y:auto;background:var(--rail);border-right:1px solid var(--line);display:flex;flex-direction:column}.rail-head{display:flex;align-items:center;gap:10px;padding:16px 16px 14px;text-decoration:none;font-weight:700;font-size:17px;letter-spacing:-.01em}.rail-head svg{width:32px;height:32px;flex:none}.rail-head small{display:block;font:500 10.5px var(--mono);color:var(--muted);letter-spacing:.04em}.group{padding:10px 10px 4px}.group .cap{padding:0 8px 6px;display:block}.group ul{list-style:none;margin:0;padding:0;display:grid;gap:1px}.group a{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:var(--r);text-decoration:none;font-size:14.5px;font-weight:500}.group a svg{width:22px;height:22px;flex:none}.group a:hover{background:var(--panel)}.group a[aria-current]{background:var(--panel);box-shadow:inset 3px 0 0 var(--ink),0 1px 2px #0000000f;font-weight:600}.rail-foot{margin-top:auto;padding:14px 16px 16px;border-top:1px solid var(--line);display:grid;gap:10px}.pref{display:flex;align-items:center;justify-content:space-between;gap:8px}.seg{display:inline-flex;border:1px solid var(--line-strong);border-radius:var(--r);overflow:hidden;background:var(--panel)}.seg label{position:relative;padding:4px 9px;font:600 12px var(--mono);color:var(--muted);cursor:pointer}.seg label+label{border-left:1px solid var(--line)}.seg input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer}.seg label:has(input:checked){background:var(--ink);color:var(--panel)}.seg label:has(input:focus-visible){outline:2px solid var(--tan);outline-offset:-2px}.theme-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);background:var(--panel);color:var(--ink);border-radius:var(--r);padding:4px 9px;font:600 12px var(--mono);cursor:pointer}.theme-btn svg{width:15px;height:15px}.theme-btn .t-dark,[data-theme=dark] .theme-btn .t-light{display:none}[data-theme=dark] .theme-btn .t-dark{display:inline}.rail-links{font-size:12.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:4px 10px}.rail-links a{text-decoration:none}.rail-links a:hover{text-decoration:underline}.main{min-width:0;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:16px;min-height:48px;padding:0 24px;border-bottom:1px solid var(--line);background:var(--panel)}.crumbs{font:500 12.5px var(--mono);color:var(--muted)}.crumbs ol{list-style:none;margin:0;padding:0;display:flex;gap:8px;flex-wrap:wrap}.crumbs li+li:before{content:"/";margin-right:8px;color:var(--line-strong)}.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}.crumbs [aria-current]{color:var(--ink)}.top-actions{margin-left:auto;display:flex;gap:8px}.tbtn{display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 12px;border-radius:var(--r);border:1px solid var(--line-strong);background:var(--panel);color:var(--ink);font:600 12.5px var(--mono);text-decoration:none;cursor:pointer;white-space:nowrap}.tbtn svg{width:15px;height:15px}.tbtn.dark{background:var(--ink);border-color:var(--ink);color:var(--panel)}.tbtn:hover{border-color:var(--ink)}.m-only{display:none}.ws{padding:18px 24px 24px}.ws-head{display:flex;align-items:baseline;gap:6px 18px;flex-wrap:wrap;margin-bottom:14px}.ws-head h1{font-size:26px;font-weight:700;letter-spacing:-.02em;margin:0;line-height:1.2}.ws-head p{margin:0;color:var(--muted);font-size:15px;flex:1 1 420px}.ws-head strong{color:var(--ink);font-weight:600}.ws-grid{display:grid;grid-template-columns:minmax(0,1fr) 344px;gap:14px;align-items:start}.canvas{position:relative;border:1px solid var(--line);border-radius:var(--r);background-color:var(--canvas);background-image:linear-gradient(var(--grid-major) 1px,transparent 1px),linear-gradient(90deg,var(--grid-major) 1px,transparent 1px),linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:100px 100px,100px 100px,20px 20px,20px 20px;background-position:center center;min-height:var(--tool-h);display:grid;place-items:center;overflow:hidden}.circle-box{width:min(100%,var(--tool-h));aspect-ratio:1;padding:40px 18px 30px;touch-action:none}.ucl-svg{width:100%;height:100%;overflow:visible;cursor:crosshair;user-select:none;-webkit-user-select:none}.float{position:absolute;z-index:2;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);box-shadow:0 1px 3px #0e111614}.f-tools{left:10px;top:10px;display:flex;flex-wrap:wrap;gap:2px;padding:3px;max-width:calc(100% - 20px)}.chip{position:relative;display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 9px;border-radius:4px;font:600 12px var(--mono);color:var(--muted);cursor:pointer;white-space:nowrap}.chip input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer}.chip:before{content:"";width:9px;height:9px;border-radius:2px;border:1.5px solid var(--line-strong)}.chip:has(input:checked){color:var(--ink);background:var(--app)}.chip:has(input:checked):before{background:var(--ink);border-color:var(--ink)}.chip:has(input:focus-visible){outline:2px solid var(--tan)}.f-coord{left:10px;bottom:10px;padding:6px 10px;font:600 13px var(--mono)}.f-coord .cap{margin-right:8px}.f-hint{right:10px;bottom:10px;padding:6px 10px;font:500 11.5px var(--mono);color:var(--muted)}kbd{font:inherit;border:1px solid var(--line-strong);border-bottom-width:2px;border-radius:3px;padding:0 4px;color:var(--ink)}.inspector{display:grid;gap:10px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r)}.panel-h{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;border-bottom:1px solid var(--line)}.panel-h h2,.panel-h h3{margin:0}.led{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px color-mix(in srgb,var(--ok) 18%,transparent)}.panel-b{padding:12px}.ang{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px}.ang .v{font:700 30px/1.05 var(--mono);letter-spacing:-.02em;display:block}.ang .v.r{color:var(--tan-ink)}.ang .sub{font:500 12.5px var(--mono);color:var(--muted)}.ang-in{grid-column:1 / -1;display:flex;align-items:center;gap:8px;border:1px solid var(--line-strong);border-radius:var(--r);padding:0 0 0 10px;background:var(--canvas)}.ang-in label{font:600 13px var(--mono);color:var(--muted);white-space:nowrap}.ang-in input{flex:1;min-width:0;height:36px;border:0;background:transparent;font:600 15px var(--mono);color:var(--ink)}.ang-in input:focus{outline:none}.ang-in:focus-within{outline:2px solid var(--tan)}.ang-in[data-invalid]{border-color:var(--sin-ink)}.angle-msg{grid-column:1 / -1;margin:0;font:500 12.5px var(--mono);color:var(--muted);min-height:1.5em}.fn-list{margin:0;display:grid}.fn{display:grid;grid-template-columns:52px 1fr auto;align-items:baseline;gap:2px 10px;padding:9px 12px 10px;border-top:1px solid var(--line)}.fn:first-child{border-top:0}.fn dt{font:700 13px var(--mono);color:var(--c-ink)}.fn dd{margin:0}.fn .exact{font:700 19px var(--mono);white-space:nowrap}.fn .dec{font:500 12.5px var(--mono);color:var(--muted);text-align:right;min-width:9ch}.gauge{grid-column:1 / -1;position:relative;height:8px;margin-top:6px;border-radius:4px;background:var(--app);overflow:hidden}.gauge:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--line-strong)}.gauge:after{content:"";position:absolute;inset:0 16.67%;border-left:1px dashed var(--line-strong);border-right:1px dashed var(--line-strong)}.gauge i{position:absolute;inset:0;transform:translate(calc(var(--v, 0) * 33.333%));transition:transform .12s}.gauge i:after{content:"";position:absolute;left:calc(50% - 5px);top:0;width:10px;height:8px;border-radius:2px;background:var(--c)}.gauge.is-undef i{opacity:.2}.fn.sin{--c: var(--sin);--c-ink: var(--sin-ink)}.fn.cos{--c: var(--cos);--c-ink: var(--cos-ink)}.fn.tan{--c: var(--tan);--c-ink: var(--tan-ink)}.fn.csc{--c: var(--asin);--c-ink: var(--asin)}.fn.sec{--c: var(--acos);--c-ink: var(--acos)}.fn.cot{--c: var(--atan);--c-ink: var(--atan)}.fn.six{display:none}.show-six .fn.six{display:grid}.loc{display:grid;grid-template-columns:70px 1fr;gap:12px;align-items:center}.astc{display:grid;grid-template-columns:1fr 1fr;width:70px;height:70px;border:1px solid var(--line-strong);border-radius:4px;overflow:hidden}.astc span{display:grid;place-items:center;font:700 13px var(--mono);color:var(--muted);border:.5px solid var(--line)}.astc span.is-on{background:var(--ink);color:var(--panel)}.kv{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;font:500 13px var(--mono);margin:0}.kv dt{color:var(--muted)}.kv dd{margin:0;font-weight:700;text-align:right}.signs{display:flex;gap:4px;justify-content:flex-end;flex-wrap:wrap}.sign{font:700 12px var(--mono);padding:1px 6px;border-radius:3px;background:var(--c-soft);color:var(--c-ink);white-space:nowrap}.sign.sin{--c-soft: var(--sin-soft);--c-ink: var(--sin-ink)}.sign.cos{--c-soft: var(--cos-soft);--c-ink: var(--cos-ink)}.sign.tan{--c-soft: var(--tan-soft);--c-ink: var(--tan-ink)}.s-axis{stroke:var(--ink);stroke-width:1.3;opacity:.55}.s-circle{fill:none;stroke:var(--ink);stroke-width:2.2}.s-term{stroke:var(--ink);stroke-width:2.4;stroke-linecap:round}.s-cos{stroke:var(--cos);stroke-width:5;stroke-linecap:round}.s-sin{stroke:var(--sin);stroke-width:5;stroke-linecap:round}.s-tan{stroke:var(--tan);stroke-width:5;stroke-linecap:round}.s-tan-ext{stroke:var(--tan);stroke-width:1.4;stroke-dasharray:2 5;stroke-linecap:round}.s-arc{fill:none;stroke:var(--accent);stroke-width:2.6}.t-axis{fill:var(--label);font:italic 600 15px var(--mono)}.t-deg{fill:var(--label);font:600 14px var(--mono)}.t-rad{fill:var(--ink);font:700 15px var(--mono)}.t-coord{fill:var(--label);font:600 11px var(--mono)}.dot{cursor:pointer;outline:none}.dot-hit{fill:transparent}.dot-v{fill:var(--canvas);stroke:var(--ink);stroke-width:1.8}.dot:hover .dot-v,.dot.is-on .dot-v{fill:var(--ink)}.dot:focus-visible .dot-hit{stroke:var(--tan);stroke-width:2;stroke-dasharray:3 3}.handle{cursor:grab;outline:none}.handle-halo{fill:var(--accent);opacity:.22}.handle-dot{fill:var(--panel);stroke:var(--ink);stroke-width:3}.handle:focus-visible .handle-halo{opacity:.55}.sec{padding:26px 24px;border-top:1px solid var(--line)}.sec-h{display:flex;align-items:baseline;gap:6px 14px;flex-wrap:wrap;margin-bottom:16px}.sec-h h2{font-size:21px;letter-spacing:-.01em;margin:0}.sec-h p{margin:0;color:var(--muted);font-size:15px}.log{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;list-style:none;margin:0;padding:0}.log li{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;border-top:3px solid var(--c)}.log li:nth-child(1){--c: var(--sin)}.log li:nth-child(2){--c: var(--cos)}.log li:nth-child(3){--c: var(--tan)}.log .cap{display:block;margin-bottom:8px;color:var(--ink)}.log h3{margin:0 0 4px;font-size:16.5px}.log p{margin:0;color:var(--muted);font-size:14.5px}.ad{margin:0}.ad .cap{display:block;text-align:center;margin-bottom:4px}.ad ins{display:block;min-height:250px}.ad-band{padding:0 24px 26px}.ad-band ins{min-height:100px}.filters{display:inline-flex;flex-wrap:wrap;border:1px solid var(--line-strong);border-radius:var(--r);overflow:hidden;background:var(--panel);margin-bottom:14px}.filters button{border:0;background:transparent;color:var(--muted);padding:7px 12px;font:600 12.5px var(--mono);cursor:pointer}.filters button+button{border-left:1px solid var(--line)}.filters button[aria-pressed=true]{background:var(--ink);color:var(--panel)}.modules{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;grid-auto-flow:dense;list-style:none;margin:0;padding:0}.modules>li{display:flex}.modules>li.wide{grid-column:span 2}.modules>li[hidden]{display:none}.mod{flex:1;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);text-decoration:none;overflow:hidden}.mod:hover{border-color:var(--ink)}.mod-h{display:flex;justify-content:space-between;gap:8px;padding:7px 12px;border-bottom:1px solid var(--line);background:var(--app)}.mod-h .k{color:var(--c-ink, var(--muted))}.mod-b{display:grid;grid-template-columns:40px 1fr;gap:4px 12px;padding:12px;align-items:start}.mod-b svg{width:40px;height:40px;grid-row:span 2}.mod h3{margin:0;font-size:15.5px;line-height:1.3}.mod p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.45}.wide .mod-b{grid-template-columns:56px 1fr}.wide .mod-b svg{width:56px;height:56px}.mod.k-sin{--c-ink: var(--sin-ink)}.mod.k-cos{--c-ink: var(--cos-ink)}.mod.k-tan{--c-ink: var(--tan-ink)}.docs{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:14px;align-items:stretch}.doc{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:28px 36px 34px;min-width:0}.doc h2{font-size:23px;letter-spacing:-.015em;margin:38px 0 10px;line-height:1.25;scroll-margin-top:12px;display:flex;gap:12px;align-items:baseline}.doc h2:first-child{margin-top:0}.doc h2 .no{font:600 13px var(--mono);color:var(--muted);flex:none}.doc h3{font-size:17px;margin:22px 0 8px}.doc p,.doc ul,.doc ol{max-width:70ch}.doc li+li{margin-top:4px}.doc .m{font-family:var(--mono);font-size:.92em;white-space:nowrap}.fn-sin{color:var(--sin-ink);font-weight:600}.fn-cos{color:var(--cos-ink);font-weight:600}.fn-tan{color:var(--tan-ink);font-weight:600}.example{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:0 var(--r) var(--r) 0;background:var(--canvas);padding:10px 14px;margin:16px 0;font-family:var(--mono);font-size:14px}.example p{margin:3px 0}.example b{font-family:var(--sans);font-size:15px}.conv-p{margin:18px 0}.conv{display:grid;grid-template-columns:1fr 1fr}.conv>div{padding:12px}.conv>div+div{border-left:1px solid var(--line)}.conv label{display:block;margin-bottom:6px}.conv input{width:100%;height:40px;border:1px solid var(--line-strong);border-radius:var(--r);padding:0 10px;font:600 17px var(--mono);background:var(--canvas);color:var(--ink)}.conv output{display:block;margin-top:8px;font:700 16px var(--mono);color:var(--tan-ink);min-height:1.5em}.conv-f{padding:8px 12px;border-top:1px solid var(--line);font:500 12px var(--mono);color:var(--muted);margin:0}.chart-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}table.chart{width:100%;border-collapse:collapse;font:500 14px var(--mono)}.chart caption{text-align:left;padding:8px 12px;font:600 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--line)}.chart th,.chart td{padding:6px 12px;text-align:left;white-space:nowrap;border-top:1px solid var(--line)}.chart thead th{font:600 11.5px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:var(--app);border-top:0}.chart thead .h-sin{box-shadow:inset 0 -2px var(--sin);color:var(--sin-ink)}.chart thead .h-cos{box-shadow:inset 0 -2px var(--cos);color:var(--cos-ink)}.chart thead .h-tan{box-shadow:inset 0 -2px var(--tan);color:var(--tan-ink)}.chart tbody th{font-weight:700}.chart .v-sin{color:var(--sin-ink)}.chart .v-cos{color:var(--cos-ink)}.chart .v-tan{color:var(--tan-ink)}.chart tbody tr:hover{background:var(--app)}.chart-print{display:none}.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}details{border-top:1px solid var(--line);padding:12px 0}details:last-of-type{border-bottom:1px solid var(--line)}summary{font-weight:600;cursor:pointer}details p{margin:8px 0 0}.dside{display:flex;flex-direction:column;gap:10px;min-width:0}.dside-top{flex:1 1 auto}.dside-sticky{position:sticky;top:14px;display:grid;gap:10px}.toc{list-style:none;margin:0;padding:6px;display:grid}.toc a{display:grid;grid-template-columns:28px 1fr;padding:5px 6px;border-radius:4px;text-decoration:none;font-size:14px;color:var(--muted)}.toc a span{font:600 12px var(--mono);color:var(--ink)}.toc a:hover{background:var(--app);color:var(--ink)}.rel{list-style:none;margin:0;padding:6px;display:grid}.rel a{display:flex;align-items:center;gap:10px;padding:5px 6px;border-radius:4px;text-decoration:none;font-size:14px;font-weight:500}.rel a:hover{background:var(--app)}.rel svg{width:24px;height:24px;flex:none}.prt .thumb{width:100%;height:auto;border:1px solid var(--line);border-radius:4px;background:#fff;margin-bottom:10px;aspect-ratio:170 / 150}.prt p{margin:0 0 10px;font-size:13.5px;color:var(--muted)}.foot{margin-top:auto;padding:18px 24px 22px;border-top:1px solid var(--line);font:500 12.5px var(--mono);color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 16px}.foot a{text-decoration:none}.foot a:hover{text-decoration:underline}.foot .sp{margin-left:auto}.console{display:flex;flex-wrap:wrap;gap:10px;align-items:end;padding:10px}.cf{display:grid;gap:4px;flex:1 1 120px;min-width:0}.cf.big{flex:3 1 240px}.cf[hidden]{display:none}.cf label{font:600 12px var(--mono);color:var(--muted)}.cf input{height:46px;min-width:0;width:100%;border:1px solid var(--line-strong);border-radius:var(--r);padding:0 12px;font:700 20px var(--mono);background:var(--canvas);color:var(--ink)}.cf.big input{font-size:22px}.cf input[aria-invalid]{border-color:var(--sin-ink);box-shadow:0 0 0 1px var(--sin-ink)}.console .seg{height:46px}.console .seg label{display:grid;place-items:center;padding:0 12px;font-size:13px}.seg-case{flex:0 0 auto}.run{height:46px;padding:0 20px;border:0;border-radius:var(--r);background:var(--ink);color:var(--panel);font:700 14px var(--mono);cursor:pointer}.run:hover{opacity:.9}.console-b{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center;padding:8px 12px 10px;border-top:1px solid var(--line)}.examples{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.examples button{height:28px;padding:0 9px;border-radius:4px;border:1px solid var(--line);background:var(--app);color:var(--ink);font:600 12.5px var(--mono);cursor:pointer}.examples button:hover{border-color:var(--ink)}.hint{margin:0 0 0 auto;font:500 12px var(--mono);color:var(--muted)}.error{margin:0;padding:0 12px;font:600 13px var(--mono);color:var(--sin-ink)}.error:empty{display:none}.calc-ws{display:grid;grid-template-columns:minmax(0,1fr) 380px;grid-template-areas:"canvas result" "canvas steps";grid-template-rows:auto 1fr;gap:10px 14px;margin-top:10px;align-items:start}.calc-canvas{grid-area:canvas;min-height:0;height:100%;padding:16px;align-content:center}.diag{width:min(100%,520px);display:grid;gap:12px;justify-items:center}.diag svg{width:100%;height:auto}.calc-svg{overflow:visible}.c-result{grid-area:result}.c-steps{grid-area:steps}.res{display:grid;grid-template-columns:1fr auto;gap:2px 12px;align-items:center}.res .r-main{font:800 40px/1.05 var(--mono);letter-spacing:-.03em;overflow-wrap:anywhere}.res .r-rad{font:700 17px var(--mono);color:var(--tan-ink);grid-column:1}.res .r-sub{grid-column:1 / -1;font-size:14px;color:var(--muted);margin-top:6px}.res .copy{grid-row:1 / 3;grid-column:2}.copy .copy-t:after{content:""}.copy[data-state=copied] .copy-t span{display:none}.copy[data-state=copied] .copy-t:after{content:"copied"}.copy[data-state=error] .copy-t span{display:none}.copy[data-state=error] .copy-t:after{content:"select & copy"}.r-rows{padding:0 12px 12px}.r-rows:empty,.r-tables:empty{display:none}.r-rows dd{white-space:normal;overflow-wrap:anywhere}.r-tables{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px 16px;padding:0 12px 12px}.tri-table h3{margin:0 0 4px}.c-steps ol{list-style:none;counter-reset:s;margin:0;padding:0}.c-steps li{counter-increment:s;display:grid;grid-template-columns:30px 1fr;gap:8px;padding:8px 12px;border-top:1px solid var(--line);font-size:14.5px}.c-steps li:first-child{border-top:0}.c-steps li:before{content:counter(s,decimal-leading-zero);font:700 12.5px/1.9 var(--mono);color:var(--muted)}.s-qfill{fill:var(--accent-soft);opacity:.85}.s-ref{fill:var(--accent);fill-opacity:.3;stroke:var(--accent);stroke-width:2}.s-guide{stroke:var(--muted);stroke-width:1.2;stroke-dasharray:4 4}.t-ref{fill:var(--ink);font:700 14px var(--mono)}.t-lbl{fill:var(--ink);font:600 12px var(--mono)}.t-vertex{fill:var(--ink);font:700 12.5px var(--mono)}.t-title{fill:var(--muted);font:600 11px var(--mono)}.s-tri{fill:var(--accent-soft);stroke:none}.s-side{stroke:var(--ink);stroke-width:2.2;stroke-linecap:round}.s-side.known{stroke:var(--sin);stroke-width:3.4}.s-side.sol2{stroke:var(--tan);stroke-dasharray:6 4}.s-ang{fill:none;stroke:var(--muted);stroke-width:1.6}.s-ang.known{stroke:var(--sin);stroke-width:2.4}.s-base{stroke:var(--ink);stroke-width:1.4;opacity:.6}.s-swing{fill:none;stroke:var(--cos);stroke-width:1.8;stroke-dasharray:5 4}.tri-svg+.tri-svg{border-top:1px solid var(--line);padding-top:8px}.prac-bar{display:flex;flex-wrap:wrap;gap:8px 18px;padding:10px 12px;align-items:center}.pg{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.pg[hidden]{display:none}.seg-wrap{flex-wrap:wrap}.prac-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:14px;margin-top:10px;align-items:start}.prac-card .panel-b{display:grid;gap:12px;min-height:420px;align-content:start}.prompt{font:700 24px/1.35 var(--mono);margin:0;min-height:2.7em}.timer{display:flex;align-items:center;gap:10px}.timer[hidden]{display:none}.timer .bar{flex:1;height:8px;border-radius:4px;background:var(--app);overflow:hidden}.timer .bar i{display:block;height:100%;background:var(--accent);transform-origin:left}.timer [data-time]{font:700 20px var(--mono);min-width:2ch;text-align:right}.answer[hidden],.choices[hidden],.fill[hidden],.prac-actions[hidden],.start[hidden]{display:none}.ans-row{display:flex;gap:8px}.ans-row input{flex:1;min-width:0;height:50px;border:1px solid var(--line-strong);border-radius:var(--r);padding:0 12px;font:700 22px var(--mono);background:var(--canvas);color:var(--ink)}.ans-row input[aria-invalid]{border-color:var(--sin-ink)}.ans-row .run{height:50px}.keypad{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:6px}.keypad button{height:42px;border:1px solid var(--line-strong);border-radius:var(--r);background:var(--panel);color:var(--ink);font:700 17px var(--mono);cursor:pointer}.keypad button:hover{border-color:var(--ink)}.choices{display:grid;grid-template-columns:1fr 1fr;gap:8px}.choices button{min-height:54px;padding:8px 12px;border:1px solid var(--line-strong);border-radius:var(--r);background:var(--panel);color:var(--ink);font:700 18px var(--mono);cursor:pointer;text-align:center}.choices button[hidden]{display:none}.choices button:hover:not(:disabled){border-color:var(--ink)}.choices button:disabled{cursor:default;opacity:.7}.choices button[data-result=ok]{border-color:var(--ok);box-shadow:inset 0 0 0 2px var(--ok);opacity:1}.choices button[data-result=bad]{border-color:var(--sin-ink);box-shadow:inset 0 0 0 2px var(--sin-ink);opacity:1}.feedback{margin:0;min-height:3em;font:600 15px/1.5 var(--mono)}.feedback[data-kind=ok]{color:var(--ok)}.feedback[data-kind=bad]{color:var(--sin-ink)}.feedback[data-kind=hint]{color:var(--muted)}.prac-actions{display:flex;justify-content:space-between;gap:8px}.prac-actions .run:disabled{opacity:.4;cursor:default}.start{justify-self:start}.prac-stats .kv{padding:12px}.stats-note{margin:0;padding:0 12px 10px;font-size:13px;color:var(--muted)}.prac-stats .tbtn{margin:0 12px 12px}.fill{display:grid;gap:10px}.fill-svg{width:min(100%,700px);margin:0 auto;touch-action:none;user-select:none;-webkit-user-select:none}.fig-svg{width:100%;height:auto;overflow:visible;display:block}.fig-svg .s-spoke{stroke:var(--grid-major);stroke-width:.8}.fig-svg .s-blank{stroke:var(--line-strong)}.t-fig{fill:var(--ink);font:600 13px var(--mono)}.t-fig-radians{font-weight:700;font-size:14px}.t-fig-coords{font-size:11.5px}.fill-dot .dot-v{fill:var(--canvas);stroke:var(--ink);stroke-width:2}.fill-dot .dot-ring{fill:transparent;stroke:none}.fill-dot.is-target .dot-ring{fill:var(--accent-soft);stroke:var(--accent);stroke-width:2}.fill-dot:hover .dot-v,.fill-dot:focus-visible .dot-v{fill:var(--accent)}.fill-dot.done .dot-v{fill:var(--ok);stroke:var(--ok)}.fill-dot.wrong .dot-v{fill:var(--sin);stroke:var(--sin-ink)}.bank{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;min-height:40px;user-select:none;-webkit-user-select:none}.chip-label{min-height:44px;height:auto;padding:0 10px;border:1px solid var(--line-strong);border-radius:4px;background:var(--panel);color:var(--ink);font:700 14px var(--mono);cursor:grab;touch-action:none}.chip-label{user-select:none;-webkit-user-select:none}.chip-label.used{visibility:hidden}body.dragging,body.dragging *{user-select:none!important;-webkit-user-select:none!important;cursor:grabbing}.chip-label[aria-pressed=true]{border-color:var(--ink);box-shadow:inset 0 0 0 2px var(--accent)}.chip-label[data-result=bad]{border-color:var(--sin-ink);color:var(--sin-ink)}.chip-label.ghost{position:fixed;left:0;top:0;z-index:60;pointer-events:none;box-shadow:0 4px 14px #0003}.prt-ws{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:14px;align-items:start}.prt-canvas{height:var(--tool-h);min-height:0;padding:18px}.prt-preview{height:100%;width:100%;display:flex;gap:16px;justify-content:center;align-items:center}.sheet-page{height:100%;max-width:100%;aspect-ratio:612 / 792;background:#fff;box-shadow:0 1px 3px #0e11161f,0 8px 28px #0e11161a;flex:0 1 auto}:root[data-paper=a4] .sheet-page{aspect-ratio:595.28 / 841.89}.prt-preview[data-count="2"] .sheet-page{height:auto;width:calc(50% - 8px)}.page-svg{width:100%;height:100%;display:block}.prt-panel .panel-b{display:grid;gap:14px}.prt-panel fieldset{border:0;margin:0;padding:0;display:grid;gap:6px}.prt-panel legend{padding:0;margin-bottom:6px}.opt-list{display:grid;gap:2px}.opt-list label{position:relative;display:flex;align-items:center;gap:10px;padding:7px 10px;border-radius:var(--r);cursor:pointer;font-size:14.5px}.opt-list input{accent-color:var(--ink);margin:0}.opt-list label:has(input:checked){background:var(--app);font-weight:600}.opt-list small{color:var(--muted);font:500 11.5px var(--mono);margin-left:auto}.check{display:flex;align-items:center;gap:8px;font-size:14.5px}.check input{accent-color:var(--ink);width:16px;height:16px;margin:0}.prt-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.prt-actions .run,.prt-actions .tbtn{height:44px;justify-content:center}[data-show-for][hidden]{display:none}.pdf-status{margin:0;font:500 12.5px var(--mono);color:var(--muted);min-height:1.5em}.pdf-links{list-style:none;margin:0;padding:0;display:grid;gap:4px;font-size:14px}.pdf-links a{display:flex;align-items:center;gap:8px}.pdf-links svg{width:15px;height:15px}.print-pages{display:none}.page-ws .doc{max-width:860px}.legal h2{margin-top:30px}.legal h2:first-child{margin-top:0}.legal-kv{max-width:560px;font-size:15px;gap:6px 18px}.legal-kv dd{text-align:left;font-weight:600}.updated{margin-top:30px}.contact-form{max-width:620px;margin:0 0 18px}.contact-form .panel-b{display:grid;gap:14px}.contact-form .cf{flex:none}.contact-form .cf input,.contact-form textarea{font:500 16px var(--sans);height:44px}.contact-form textarea{height:auto;min-height:160px;padding:10px 12px;width:100%;border:1px solid var(--line-strong);border-radius:var(--r);background:var(--canvas);color:var(--ink);resize:vertical}.contact-form textarea[aria-invalid]{border-color:var(--sin-ink)}.contact-form .run{justify-self:start}.opt{font-weight:400;color:var(--muted)}.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.privacy-note{margin:0;font-size:14px;color:var(--muted)}.form-status{margin:0;font:600 14px var(--mono);min-height:1.4em}.form-status[data-kind=ok]{color:var(--ok)}.form-status[data-kind=bad]{color:var(--sin-ink)}.form-msg{display:none;margin:0;padding:10px 12px;border-radius:var(--r);font-weight:600}.form-msg:target{display:block}.form-msg.ok{background:color-mix(in srgb,var(--ok) 12%,transparent);color:var(--ok)}.form-msg.bad{background:var(--sin-soft);color:var(--sin-ink)}.tabbar{display:none}@media(max-width:1180px){.app{grid-template-columns:228px minmax(0,1fr)}.ws-grid{grid-template-columns:minmax(0,1fr) 300px}.modules{grid-template-columns:repeat(3,1fr)}.docs{grid-template-columns:minmax(0,1fr) 260px}}@media(max-width:900px){.ws-grid{grid-template-columns:minmax(0,1fr)}.inspector{grid-template-columns:1fr 1fr}.docs{grid-template-columns:minmax(0,1fr)}.dside-sticky{position:static}.dside .ad{display:none}.calc-ws{grid-template-columns:minmax(0,1fr);grid-template-areas:"result" "canvas" "steps"}.prac-grid,.prt-ws{grid-template-columns:minmax(0,1fr)}.prt-canvas{height:auto}.prt-preview{height:auto;flex-wrap:wrap}.sheet-page{height:auto;width:min(100%,520px)}.prt-preview[data-count="2"] .sheet-page{width:min(100%,520px)}}@media(max-width:760px){body{font-size:16px}.app{display:block;padding-bottom:calc(var(--tabbar) + env(safe-area-inset-bottom,0px))}.rail{display:none}.topbar{min-height:50px;padding:0 12px;gap:10px}.m-only{display:flex}.m-brand{align-items:center;gap:8px;font-weight:700;text-decoration:none;font-size:15.5px}.m-brand svg{width:28px;height:28px}.topbar .crumbs{display:none}.top-actions .tbtn:not(.theme-btn){display:none}.ws{padding:10px 12px 16px}.ws-head{gap:4px;margin-bottom:8px}.ws-head h1{font-size:23px}.ws-head p{font-size:14px;line-height:1.45;flex-basis:100%}.canvas{min-height:0;margin:0 -12px;border-radius:0;border-left:0;border-right:0}.circle-box{width:100%;padding:44px 8px 30px}.f-tools{left:6px;right:6px;top:6px;flex-wrap:nowrap;overflow-x:auto;max-width:none}.f-hint{display:none}.f-coord{left:6px;bottom:6px;font-size:12px}.inspector{grid-template-columns:minmax(0,1fr)}.ang .v{font-size:26px}.sec{padding:22px 12px}.ad-band{padding:0 12px 22px}.log{grid-template-columns:1fr}.modules{grid-template-columns:1fr 1fr}.mod p{display:none}.mod-b{grid-template-columns:32px 1fr}.mod-b svg,.wide .mod-b svg{width:32px;height:32px;grid-row:auto}.wide .mod-b{grid-template-columns:32px 1fr}.doc{padding:20px 16px}.doc h2{font-size:20px}.conv{grid-template-columns:1fr}.conv>div+div{border-left:0;border-top:1px solid var(--line)}.foot{padding:16px 12px 24px}.foot .sp{margin-left:0}.console{padding:8px;gap:8px}.cf{flex:1 1 calc(50% - 8px)}.cf.big,.seg-case{flex:1 1 100%}.seg-case label{flex:1}.run{flex:1 1 auto}.hint{margin:0;flex-basis:100%}.calc-canvas{margin:0 -12px;border-radius:0;border-left:0;border-right:0}.res .r-main{font-size:34px}.prac-bar{gap:6px 10px;padding:8px}.prac-bar .seg label{padding:4px 7px}.prompt{font-size:20px;min-height:2.7em}.prac-card .panel-b{min-height:0}.keypad{grid-template-columns:repeat(9,minmax(0,1fr));gap:4px}.prac[data-mode=fill] .prac-card .panel-b{padding:10px 4px}.fill-svg{width:calc(100% + 32px);margin:0 -16px;max-width:none}.keypad button{height:40px;font-size:15px}.choices button{font-size:16px}.tabbar{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;height:calc(var(--tabbar) + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px);z-index:30;background:var(--panel);border-top:1px solid var(--line)}.tabbar>a,.tabbar summary{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:var(--tabbar);text-decoration:none;font:600 10.5px var(--mono);color:var(--muted);list-style:none;cursor:pointer}.tabbar summary::-webkit-details-marker{display:none}.tabbar svg{width:24px;height:24px}.tabbar [aria-current]{color:var(--ink)}.tabbar details{border:0;padding:0}.tabbar details[open] summary{color:var(--ink)}.sheet{position:fixed;left:0;right:0;bottom:calc(var(--tabbar) + env(safe-area-inset-bottom,0px));max-height:72vh;overflow-y:auto;background:var(--panel);border-top:1px solid var(--line);box-shadow:0 -8px 30px #0000001f;padding:6px 4px 12px}.sheet .rail-foot{margin-top:6px}}@media print{body.print-sheet>:not(.print-pages){display:none!important}body.print-sheet .print-pages{display:block}.print-page{width:100vw;height:100vh;overflow:hidden;break-after:page;page-break-after:always}.print-page:last-child{break-after:auto;page-break-after:auto}.print-page svg{width:100%;height:100%;display:block}body.print-chart *{visibility:hidden!important}body.print-chart .chart-print,body.print-chart .chart-print *{visibility:visible!important}body.print-chart .chart-print{display:block;position:fixed;inset:0;padding:.4in}body.print-chart .chart-print svg{width:100%;height:auto;max-height:100%}.rail,.topbar,.tabbar,.foot,.dside,.ad,.ad-band,ins.adsbygoogle,.google-auto-placed,.float,.filters,.skip{display:none!important}.app{display:block}body{background:#fff}}
