:root{color-scheme:dark;--bg:#111716;--panel:#1b2320;--line:#344039;--muted:#a0afa6;--accent:#c5f279;--ink:#eff5ef}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans',sans-serif;font-size:16px}button,input,textarea,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{transition:background .15s,transform .15s}button:active{transform:translateY(1px)}header{height:94px;max-width:1328px;margin:auto;padding:0 56px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}a{color:inherit;text-decoration:none}.brand{display:flex;align-items:center;font-family:Manrope,sans-serif;font-size:25px;font-weight:800;letter-spacing:-1px}.mark{background:var(--accent);color:var(--bg);width:36px;height:36px;border-radius:11px;display:grid;place-items:center;margin-right:11px;font-size:30px;font-weight:500}.brand-light{font-weight:400;color:#c4cec7}.badge{font-family:'DM Sans',sans-serif;font-size:10px;letter-spacing:1.6px;font-weight:500;margin-left:24px;padding-left:24px;border-left:1px solid var(--line);color:var(--muted)}.quiet{border:0;background:none;color:var(--muted);font-size:14px;padding:8px}.quiet:hover{color:var(--accent)}.quiet span{margin-left:12px}main{max-width:1216px;margin:auto;padding:46px 0 0}.heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:32px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:600;color:var(--muted);margin:0 0 12px}h1{font-family:Manrope,sans-serif;font-weight:500;font-size:46px;letter-spacing:-2px;margin:0;line-height:1.2}h1 span{color:var(--accent)}.heading>p{font-size:14px;color:var(--muted);line-height:1.7;margin:0 0 3px}.workspace{display:grid;grid-template-columns:1fr 1fr;gap:22px}.calculator{border:1px solid #3b483e;border-radius:20px;background:var(--panel);padding:24px}.toolbar,.solution-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-title{font-size:15px;font-weight:500}.section-title>span{margin-right:8px;color:var(--muted)}.angle{display:flex;background:#101713;padding:3px;border-radius:7px}.angle button{border:0;border-radius:5px;background:none;color:var(--muted);font-size:12px;padding:7px 10px}.angle button[aria-pressed=true]{background:#364335;color:var(--accent)}.input-wrap{margin-top:22px;background:#101713;border:1px solid #3a493d;border-radius:12px;padding:18px 18px 9px}.input-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 1px #c5f27933}label[for=expression]{font-size:10px;letter-spacing:1.8px;color:#a0b18e;font-weight:600}textarea{display:block;background:none;border:0;outline:none;color:var(--ink);width:100%;resize:vertical;min-height:85px;max-height:190px;font-family:Manrope,sans-serif;font-size:28px;line-height:1.5;padding:12px 0 4px}textarea::placeholder{color:#5e6d62}.input-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;color:var(--muted);font-size:12px}.input-footer .quiet{font-size:12px}.operation{display:flex;justify-content:space-between;align-items:center;padding:17px 0;color:var(--muted);font-size:13px}.operation select{background:#1b2320;color:#dce6dc;border:0;max-width:73%;font-size:14px;padding:5px}.keypad{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.keypad button{border:1px solid #344038;border-radius:9px;background:#28332c;color:#eef3ed;min-height:48px;font-size:20px}.keypad button:hover{background:#3c4a3d}.keypad .fn{font-size:14px;background:#202a23;color:#bdcbbf}.keypad .operator{color:var(--accent);background:#33422b;border-color:#415038}.keypad .delete{color:#e6c49d}.solve{width:100%;background:var(--accent);color:#17220e;border:0;border-radius:10px;font-weight:700;padding:16px 22px;display:flex;justify-content:space-between;margin-top:14px;font-size:17px}.solve:hover{background:#d7ff96}.key-hint{display:flex;justify-content:space-between;color:#94a298;font-size:11px;margin-top:17px}kbd{font:inherit;border:1px solid #4d5e50;border-radius:3px;padding:1px 4px;margin-right:5px}.solution{border:1px solid var(--line);border-radius:20px;padding:25px 27px;background:#151d19;min-width:0}.small-tag{font-size:9px;letter-spacing:1px;color:var(--muted);text-align:right}.empty{display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;min-height:455px;max-width:300px;margin:auto}.empty-symbol{font:500 55px Manrope,sans-serif;color:var(--accent);background:#222f20;border:1px solid #384831;border-radius:20px;padding:20px 28px;margin-bottom:26px;transform:rotate(-5deg)}.empty h2{font-size:22px;font-weight:500;letter-spacing:-.5px;line-height:1.4;margin:0 0 12px}.empty p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}.answer-box{margin-top:25px;background:#c5f279;border-radius:12px;padding:22px;color:#1a2811}.answer-label{font-size:11px;letter-spacing:1.5px;display:flex;justify-content:space-between;align-items:center}.copy{font-size:12px;border:0;background:#172b1114;color:#213417;border-radius:5px;padding:6px 10px}.answer{font:600 34px Manrope,sans-serif;letter-spacing:-1px;overflow-wrap:anywhere;margin:11px 0 5px}.original{color:#42542f;font-size:13px;overflow-wrap:anywhere}.steps-title{font-size:15px;margin:27px 0 21px;font-weight:500}.steps{padding:0;list-style:none}.steps li{display:flex;gap:14px;position:relative;padding:0 0 23px}.step-index{background:#283428;color:#b9cfac;border:1px solid #3b4b37;border-radius:50%;width:25px;height:25px;flex-shrink:0;display:grid;place-items:center;font-size:11px}.step-content{min-width:0}.step-content p{font-size:13px;color:#b0bdb2;margin:3px 0 8px}.math{font-family:Manrope,sans-serif;font-size:17px;overflow-wrap:anywhere;line-height:1.6}.result-note{border-top:1px solid var(--line);padding-top:17px;color:var(--muted);font-size:12px;line-height:1.7}.error{margin-top:50px;border-left:3px solid #f0b58d;padding:10px 20px}.error h2{font-size:20px}.error p{color:#d6bbad;line-height:1.7}.examples{margin-top:39px}.examples h2{font:500 21px Manrope,sans-serif;letter-spacing:-.5px;margin:0 0 22px}.example-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.example-grid button{text-align:left;padding:20px;border:1px solid var(--line);background:#19221c;border-radius:12px;color:var(--ink)}.example-grid button:hover{border-color:#829764;background:#253120}.example-grid span{display:block;font-size:12px;color:var(--muted)}.example-grid .example-label{color:#b7c7a9;font-size:10px;letter-spacing:.7px}.example-grid strong{display:block;font:500 20px Manrope,sans-serif;margin:14px 0 18px}.example-grid b{float:right;color:var(--accent);font-size:16px;font-weight:400}.history{margin:35px 0}.history-heading{display:flex;align-items:center;justify-content:space-between}.history h2{font-size:16px;font-weight:500}.history h2 span{font-size:11px;color:var(--muted);margin-left:8px}.muted{font-size:12px;color:var(--muted)}.history-item{border:0;border-top:1px solid var(--line);width:100%;background:none;color:#d7e2d5;text-align:left;padding:16px 4px;display:flex;justify-content:space-between;gap:20px}.history-item:hover{background:#1d291e}.history-item span{font-size:14px;overflow-wrap:anywhere}.history-item strong{font-weight:500;color:var(--accent);font-size:15px;text-align:right;overflow-wrap:anywhere}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;padding:25px 0 32px;color:#899b8c;font-size:12px}.footer-brand{color:#b9c7b9}.footer-brand span{margin:0 12px;color:#556554}dialog{border:1px solid #4c6144;border-radius:18px;background:#1b251d;color:var(--ink);max-width:620px;width:calc(100% - 32px);max-height:85dvh;padding:28px}dialog::backdrop{background:#000b;backdrop-filter:blur(4px)}.dialog-head{display:flex;align-items:center;justify-content:space-between}.dialog-head h2{margin:0}dialog p,dd{font-size:14px;color:#bac8b9;line-height:1.8}dt{font-weight:600;color:var(--accent);font-size:14px;margin-top:22px}dd{margin:8px 0 0}code{color:#e0edd6;background:#2b3827;border-radius:4px;padding:2px 4px;font-size:13px}@media(min-width:1450px){main{padding-top:60px}}@media(max-width:1330px){header{padding:0 32px}main{margin:0 32px}}@media(max-width:860px){.workspace{grid-template-columns:1fr 1fr;gap:14px}.calculator,.solution{padding:18px}.keypad{gap:5px}.keypad button{min-height:43px}.heading>p{display:none}h1{font-size:38px}.badge{display:none}.input-footer>span{font-size:10px}.example-grid strong{font-size:17px}.answer{font-size:27px}}@media(max-width:650px){header{height:75px;padding:0 20px}.brand{font-size:23px}main{margin:0 16px;padding-top:29px}.heading{margin-bottom:24px}h1{font-size:35px;letter-spacing:-1.5px}.eyebrow{font-size:9px}.workspace{grid-template-columns:1fr;gap:18px}.calculator{padding:18px}.solution{padding:22px}.empty{min-height:235px;max-width:280px}.empty-symbol{font-size:34px;padding:10px 20px;margin-bottom:18px}.empty h2{font-size:19px}.keypad button{min-height:48px}.input-footer>span{font-size:11px}.example-grid{grid-template-columns:1fr}.example-grid button{padding:17px 19px}.example-grid strong{margin:10px 0;font-size:21px}.examples{margin-top:30px}.heading .eyebrow{margin-bottom:9px}.answer{font-size:32px}.section-title{font-size:14px}footer{gap:16px;flex-direction:column}.badge{display:none}.quiet{font-size:13px}textarea{font-size:27px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.operation{font-size:14px}.key-hint{font-size:12px}.small-tag,.eyebrow,label[for=expression],.example-grid .example-label,.badge{font-size:12px}.step-content p{font-size:14px}.angle button{font-size:14px}.input-footer>span{font-size:12px}.answer-label{font-size:12px}
\n.skip-link{position:absolute;left:-9999px;top:12px;background:var(--accent);color:#17220e;padding:10px 14px;border-radius:7px;z-index:10}.skip-link:focus{left:12px}.policy-links{display:flex;gap:14px}.policy-links a{text-decoration:underline;text-underline-offset:3px}.policy-links a:hover,footer a:hover{color:var(--accent)}.cookie-notice{position:fixed;left:20px;right:20px;bottom:20px;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;background:#28372a;border:1px solid #6d8856;color:#eef5e9;padding:15px 18px;border-radius:12px;box-shadow:0 10px 30px #0008;font-size:13px}.cookie-notice>div{display:flex;flex-direction:column;gap:3px}.cookie-notice span{color:#c9d6c4}.cookie-notice a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}.cookie-close{border:0;background:var(--accent);color:#17220e;border-radius:6px;padding:8px 12px;font-weight:600;white-space:nowrap}@media(max-width:650px){.cookie-notice{left:12px;right:12px;bottom:12px;align-items:flex-start;flex-wrap:wrap}.cookie-notice>div{flex:1 1 100%}.policy-links{gap:10px}}
\n.policy-page{min-height:100vh}.policy-page header{max-width:980px}.policy-page main{max-width:900px;padding:50px 32px 80px}.policy-page h1{margin-bottom:18px}.policy-page h2{font:600 22px Manrope,sans-serif;margin:38px 0 10px;color:var(--accent)}.policy-page p{max-width:760px;color:#c4d0c5;line-height:1.8;font-size:16px}.policy-page .lead{font-size:19px;color:#e3ede4}.policy-page a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.policy-page .brand,.policy-page .back-link{color:var(--ink);text-decoration:none}.policy-page .back-link{display:inline-block;margin-bottom:50px;color:var(--muted)}.policy-page .back-link:hover{color:var(--accent)}.policy-page footer{margin-top:55px;justify-content:flex-start;gap:20px}
.answer-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.answer-actions .copy{min-height:32px}.policy-links+*{margin-left:0}@media print{body{background:#fff;color:#111}header,.heading,.calculator,.examples,.history,footer,.cookie-notice,.solution-top{display:none!important}main{max-width:none;margin:0;padding:0}.workspace{display:block}.solution{border:0;background:#fff;color:#111;padding:0}.answer-box{background:#fff;border:2px solid #111;color:#111}.copy{display:none}.step-content p,.result-note{color:#333}.step-index{color:#111;background:#fff;border-color:#111}}@media(max-width:650px){.answer-label{align-items:flex-start;gap:12px}.answer-actions{max-width:180px}}
.embed-credit{display:none}html.embed-mode header,html.embed-mode .heading,html.embed-mode .examples,html.embed-mode .history,html.embed-mode footer,html.embed-mode .cookie-notice{display:none!important}html.embed-mode main{max-width:1216px;margin:0 auto;padding:16px}html.embed-mode .workspace{min-height:0}html.embed-mode .embed-credit{display:flex;justify-content:space-between;gap:16px;padding:14px 4px 0;color:var(--muted);font-size:12px}html.embed-mode .embed-credit a{color:#c5d9c4;text-decoration:underline;text-underline-offset:3px}html.embed-mode .embed-credit a:hover{color:var(--accent)}@media(max-width:650px){html.embed-mode main{margin:0;padding:10px}html.embed-mode .embed-credit{flex-direction:column;gap:5px}html.embed-mode .calculator,html.embed-mode .solution{border-radius:14px}}