:root{--bg:#f0f0ec;--surface:#ffffff;--surface2:#f5f4f0;--surface3:#eceae4;--border:#dddbd3;--border2:#c4c2b8;--text:#1a1a16;--text2:#585850;--text3:#989888;--accent:#1a5a9a;--accent-light:#eaf0fb;--accent-dark:#0f3878;--mono:'DM Mono',monospace;--radius:8px;--radius-lg:14px;}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}.container__inner{display:flex;justify-content:space-between;gap:1em;max-width:var(--tantive-container-width-pc);margin:50px auto;}.tool-area{flex-grow:1;}h1{font-size:1.5em;margin-bottom:20px;}h2{position:relative;font-size:1.5em;padding:.25em .5em;width:-moz-fit-content;width:fit-content;}h2::before{content:"";position:absolute;top:0;left:0;width:5px;height:100%;border-radius:3px;background-color:var(--tantive-main-dark-color);}.title-section{margin-bottom:50px;}.title-wrap{position:relative;width:-moz-fit-content;width:fit-content;}.title-catch{font-size:.75em;}.card{background:white;border:1px solid var(--tantive-main-dark-color);border-radius:5px;padding:1.5em;margin-bottom:1em;box-shadow:var(--shadow);}.card-head{font-size:11px;font-weight:700;letter-spacing:.07em;color:var(--gray-600);text-transform:uppercase;padding:9px 14px 7px;background:var(--gray-100);border-bottom:1px solid var(--gray-300);}.card-title{font-size:.75em;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1em;}#input-data{display:flex;align-items:center;gap:.5rem;}.field{display:grid;grid-template-rows:auto;grid-template-columns:auto 2rem auto auto 2rem auto;grid-template-areas:"area-a-title . . area-b-title . area-c-title" "area-a-input area-x area-sign area-b-input area-equal area-c-input" "area-a-toggle . . area-b-toggle . 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solid(--tantive-main-dark-color);}.input-constant-wrap__constant-b{grid-area:area-b-input;align-self:center;}.string-equal{grid-area:area-equal;align-self:center;font-size:1.5rem;}.input-constant-wrap__constant-c{grid-area:area-c-input;align-self:center;}.button-toggle-wrap__confficient{grid-area:area-a-toggle;justify-self:center;}.button-toggle-wrap__constant-b{grid-area:area-b-toggle;justify-self:center;}.button-toggle-wrap__constant-c{grid-area:area-c-toggle;justify-self:center;}.field-label{font-size:12px;font-weight:500;color:var(--text2);}[class^=input-constant-wrap__confficient--]:not(.active),[class^=input-constant-wrap__constant-b--]:not(.active),[class^=input-constant-wrap__constant-c--]:not(.active){display:none;}.field input{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius);font-family:var(--mono);font-size:18px;font-weight:500;color:var(--text);background:var(--surface);outline:none;transition:border-color .15s;-webkit-appearance:textfield;appearance:textfield;-moz-appearance:textfield;}.field input::-webkit-inner-spin-button,.field input::-webkit-outer-spin-button{-webkit-appearance:none;}.field input:focus{border-color:var(--tantive-main-dark-color);}.field input::-moz-placeholder{color:var(--text3);font-size:15px;font-weight:400;}.field input::placeholder{color:var(--text3);font-size:15px;font-weight:400;}.field input.has-error{border-color:#e05a5a;background:#fff5f5;}.button-toggle-wrap{width:-moz-fit-content;width:fit-content;padding:.25rem;border:1.5px solid var(--border);border-radius:1000px;}.button-toggle{padding:.5rem 1rem;background-color:white;border:1px solid var(--tantive-main-dark-color);border-radius:1000px;font-size:.75rem;}.button-toggle.active{background-color:var(--tantive-body-background-color);}.button-toggle:not(.active):hover{filter:brightness(.88);}.input-fraction-bar{width:100%;height:2px;background:var(--tantive-font-color);margin-block:5px;}.btn-convert{width:100%;padding:12px;border:none;border-radius:var(--radius);background:var(--tantive-main-dark-color);color:#fff;font-family:inherit;font-size:14px;font-weight:700;cursor:pointer;transition:all .15s;letter-spacing:.02em;}.btn-convert:hover{filter:brightness(.88);}.btn-convert:active{transform:scale(.99);}.rule-info-box{font-size:.75rem;background:var(--bg);padding:1rem;margin-top:.75rem;}.rule-info-box--title{font-weight:bold;}.notice-result-area{display:none;margin:.5rem auto;padding:.5rem 1rem;width:-moz-fit-content;width:fit-content;border:1px solid var(--tantive-main-dark-color);background:var(--tantive-body-background-color);border-radius:var(--radius);}.result-visual{background:var(--bg);padding:1rem;font-size:.75rem;}.result-caption{font-weight:bold;}.result-equation{display:flex;gap:.5rem;align-items:center;text-align:center;}.result-fraction-bar{height:1px;width:100%;background:var(--tantive-font-color);}.result-variable-x{font-family:serif;}.result-final-wrap{font-size:2em;display:flex;align-items:center;gap:.5rem;color:var(--accent);}.result-fial-variable-x{font-family:serif;}.result-final-anser{text-align:center;}.howto-exp{margin-block:1rem;}.howto-example{font-size:.75rem;padding:1rem .75rem;background:var(--surface2);}.usecase-section{margin-top:1.5em;}.usecase-section li::before{content:"- ";}.related-tools-section{margin-top:1.5em;}.related-tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1em;list-style:none;padding:0;margin:1em 0 0 0;}.related-tools-link{display:flex;height:100%;flex-direction:column;align-items:center;gap:8px;padding:1em;border:1px solid var(--tantive-main-dark-color);border-radius:8px;text-decoration:none;color:inherit;transition:box-shadow .2s,transform .2s;}.related-tools-link:hover{box-shadow:0 4px 12px rgba(0,0,0,.1);transform:translateY(-2px);}.related-tools-emoji{font-size:2rem;}.related-tools-name{font-weight:bold;font-size:1rem;}.related-tools-desc{font-size:.8rem;color:#888;text-align:center;}.ad-area{flex:0 0 200px;}.ad-area-wrap{width:400px;position:sticky;top:100px;}.ad-area-wrap ins{width:300px;height:250px;}@media screen and (max-width:1280px){.container__inner{flex-direction:column-reverse;padding:0 1em}.card{padding-inline:.5rem}.button-toggle-wrap{border-radius:var(--radius);display:flex;flex-direction:column;gap:.25rem}.button-toggle{border-radius:var(--radius)}.notice-result-area{display:block}.ad-area{flex:unset}.ad-area-wrap{margin:auto;width:100%}.ad-area-wrap ins{width:300px;height:100px;margin:auto}.ad-moved-area:has(>*){margin-top:1em;margin-bottom:1em}}@media screen and (max-width:500px){.field{grid-template-columns:minmax(0,1fr) 2rem minmax(0,1fr) minmax(0,1fr) 2rem minmax(0,1fr)}.field input{font-size:1rem}}