:root{color-scheme:dark;--bg:#171a17;--panel:#242823;--line:#383d34;--text:#f3f3e8;--muted:#a6ab9b;--accent:#d4f583;font-family:Inter,"Segoe UI",Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}button,a,input{-webkit-tap-highlight-color:transparent}button,input{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.topbar{max-width:1440px;margin:auto;padding:34px 6%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:650;letter-spacing:-1px}.logo{display:grid;place-items:center;width:38px;height:38px;background:var(--accent);color:var(--bg);border-radius:10px;font-size:29px;font-weight:800}.brand-dot{font-size:11px;align-self:flex-start;margin-top:5px}.doc-link{font-size:13px;color:var(--muted)}.doc-link span{margin-left:12px;font-size:20px}main{max-width:1440px;margin:auto;padding:76px 6% 70px;display:grid;grid-template-columns:1fr 1.15fr;gap:60px;align-items:center}.eyebrow{font-size:10px;letter-spacing:2.2px;font-weight:650;display:flex;align-items:center;gap:9px}.eyebrow span{width:7px;height:7px;border-radius:50%;background:var(--accent)}h1{font-size:clamp(36px,4.4vw,66px);letter-spacing:-3px;line-height:1.1;font-weight:500;margin:28px 0}h1 em{font-family:Georgia,serif;font-weight:400;color:var(--accent)}.subtitle{font-size:15px;line-height:1.8;color:var(--muted)}.features{display:flex;flex-direction:column;gap:13px;margin-top:46px;font-size:12px;color:var(--muted)}.features span:before{content:'✓';color:var(--accent);margin-right:10px}.workspace{display:grid;grid-template-columns:minmax(270px,370px) minmax(150px,1fr);gap:22px;align-items:start}.calculator{border:1px solid #454b3d;border-radius:22px;background:var(--panel);padding:21px;box-shadow:0 22px 65px #0003}.calc-top{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1.5px;color:var(--muted);align-items:center}.ready{font-size:8px;display:flex;align-items:center;gap:5px}.ready i{width:5px;height:5px;border-radius:50%;background:var(--accent)}.screen{padding:34px 2px 14px;text-align:right}.screen label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.screen input{width:100%;border:0;background:transparent;text-align:right;color:var(--muted);font-size:17px;padding:5px 0;min-width:0}.screen output{display:block;font-size:clamp(30px,3.4vw,48px);letter-spacing:-1.7px;font-weight:450;min-height:58px;overflow-wrap:anywhere;margin-top:12px}.screen p{font-size:11px;color:#ffb7a5;min-height:14px;margin:3px 0 0}.keys{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.keys button{height:58px;border:1px solid transparent;border-radius:12px;background:#30352e;color:var(--text);font-size:21px;transition:background .15s,transform .1s}.keys button:hover{background:#41493a}.keys button:active{transform:scale(.95)}.keys .utility{color:var(--muted);background:#393f33;font-size:17px}.keys .operator{background:#414d30;color:var(--accent);font-size:25px}.keys .equals{background:var(--accent);color:#24301a;font-size:29px}.keys .equals:hover{background:#e2ffa0}.calc-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:18px;font-size:10px;color:var(--muted)}kbd{font-family:inherit;border:1px solid var(--line);border-radius:4px;padding:2px 5px;margin-right:5px}.calc-bottom button{border:0;background:transparent;color:var(--muted);font-size:16px}.calc-bottom button span{font-size:10px;margin-left:4px}.history{padding-top:15px}.history-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.history h2{font-size:12px;font-weight:500;margin:0}.history-top button{background:transparent;border:0;color:var(--muted);font-size:21px}.history-note{font-size:10px;line-height:1.6;color:#7e8675;margin-top:24px}.empty-history{margin-top:28px;border-top:1px solid var(--line);padding-top:25px;font-size:12px;line-height:1.7;color:var(--muted)}.empty-history .empty-symbol{font-size:26px;display:block;margin-bottom:12px;color:#747e64}.history-item{display:block;width:100%;text-align:left;background:none;border:0;border-bottom:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:11px;overflow-wrap:anywhere}.history-item strong{display:block;color:var(--text);font-weight:500;font-size:20px;margin-top:7px}.history-item:hover strong{color:var(--accent)}footer{max-width:1440px;margin:auto;border-top:1px solid var(--line);padding:25px 6%;display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}footer>span:last-child{font-size:8px;letter-spacing:1.4px}.footer-mark{color:var(--accent);font-size:19px;margin-left:14px;vertical-align:middle}.doc-main{display:block;max-width:950px;padding-top:50px}.doc-main h1{font-size:46px}.doc-main h2{font-size:21px;margin-top:38px}.doc-main p,.doc-main li{color:var(--muted);line-height:1.8;font-size:15px}.doc-main code{color:var(--accent)}.doc-main table{width:100%;border-collapse:collapse;font-size:14px}.doc-main td,.doc-main th{text-align:left;border-bottom:1px solid var(--line);padding:13px}.doc-main th{color:var(--accent)}@media(min-width:1400px){main{min-height:calc(100vh - 181px)}}@media(max-width:1100px){main{gap:30px;grid-template-columns:1fr 1.2fr;padding-top:60px}.workspace{grid-template-columns:minmax(270px,1fr)}.history{padding:0 5px}.history-list{max-height:200px;overflow:auto}h1{letter-spacing:-2px}footer{margin-top:20px}}@media(max-width:700px){.topbar{padding:22px 6%}main{grid-template-columns:1fr;padding:38px 6% 35px;gap:30px}.intro h1{font-size:42px;margin:18px 0}.subtitle{font-size:13px}.features{display:none}.workspace{max-width:420px;width:100%;margin:auto;gap:25px}.calculator{padding:20px}.keys button{height:58px}.screen output{font-size:45px}.screen{padding-top:22px}.eyebrow{font-size:9px}.history{padding:0 5px}footer{gap:20px;line-height:1.5}.doc-main h1{font-size:36px}.doc-main table{font-size:12px}}
.mode-switch{display:flex;gap:4px;margin-top:19px;padding:4px;border:1px solid var(--line);border-radius:10px;background:#1d211b}.mode-switch button{flex:1;background:none;border:0;border-radius:7px;padding:9px 5px;color:var(--muted);font-size:11px}.mode-switch button[aria-pressed=true]{background:#414d30;color:var(--accent)}.angle-row{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:9px;letter-spacing:1.5px;margin-bottom:10px}.angle-switch{display:flex;gap:4px}.angle-switch button{border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--muted);padding:6px 9px;font-size:10px}.angle-switch button[aria-pressed=true]{background:var(--accent);color:#24301a;border-color:var(--accent)}.science-keys{margin-bottom:10px}.science-keys button{height:39px;font-size:14px;background:#343e2b;color:var(--accent)}.science-hint{color:var(--muted);font-size:9px;line-height:1.7;margin:0 0 16px}.history-unit{display:inline-block;color:var(--accent);font-size:8px;margin-left:7px;letter-spacing:.5px}.history #history-list{max-height:440px;overflow:auto;scrollbar-width:thin}.calculator:has(#scientific-panel:not([hidden])) .screen{padding-top:20px}
.history-tools{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}.history-tools button{flex:1;padding:8px 9px;background:#30392a;border:1px solid #46513a;border-radius:8px;color:var(--accent);font-size:11px;white-space:nowrap}.history-tools button:hover{background:#414d30}.history-tools button:disabled{opacity:.4;cursor:default}.transfer-note{font-size:10px;line-height:1.6;color:var(--muted);margin:10px 0}.history-status{font-size:11px;line-height:1.6;color:var(--accent);overflow-wrap:anywhere}.history-status:empty{display:none}
.topbar-links{display:flex;gap:24px;align-items:center}.account-main{max-width:1100px;grid-template-columns:1fr 1fr;gap:70px}.account-card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:28px}.account-card h2{font-size:22px;line-height:1.4;font-weight:500}.account-card form label{display:block;color:var(--text);font-size:12px;margin:22px 0 8px}.account-card input{width:100%;padding:13px;border:1px solid #4b5343;border-radius:9px;background:#1b1f19;color:var(--text);font:inherit}.account-primary{display:block;width:100%;text-align:center;border:0;border-radius:10px;padding:14px;background:var(--accent);color:#24301a;font:inherit;font-size:13px;margin-top:24px}.account-secondary{display:block;width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;background:transparent;color:var(--text);font:inherit;font-size:13px;margin-top:12px}.account-primary:disabled,.account-secondary:disabled{opacity:.5;cursor:wait}.account-note,.field-help{color:var(--muted);font-size:11px;line-height:1.7}.account-note{margin-top:24px}#account-status{font-size:12px;color:var(--accent);line-height:1.7;overflow-wrap:anywhere}#account-status:empty{display:none}.field-help{margin-top:7px}@media(max-width:700px){.account-main{grid-template-columns:1fr;gap:28px}.account-card{padding:23px}.topbar-links{gap:15px}.topbar-links a{font-size:11px}}
#open-modulo[hidden],#notice-retry[hidden]{display:none}

#confirm-email[hidden],#email-refresh[hidden]{display:none}#email-verified{overflow-wrap:anywhere}