@charset "UTF-8";
:root{--ink:#172c2b;--muted:#6c7774;--line:#e0e4dd;--paper:#f6f7f2;--green:#d3f36a;--white:#fff;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #6c9449;outline-offset:4px}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.svg-defs{position:absolute;width:0;height:0;overflow:hidden}[hidden]{display:none!important}.header{border-bottom:1px solid var(--line);background:#fcfdf9}.header-inner{max-width:1160px;margin:auto;height:94px;display:flex;align-items:center;justify-content:space-between;padding:0 32px}.brand{display:flex;align-items:center;text-decoration:none;font-size:28px;font-weight:800;letter-spacing:-1.3px}.brand-light{font-weight:450}.brand-dot{color:#6c9139}.brand-icon{background:var(--green);height:42px;width:42px;display:grid;place-items:center;border-radius:12px;margin-right:10px}.brand-icon svg{height:25px;width:25px}.header-right{display:flex;align-items:center;gap:20px}.local-note{font-size:12px;color:#67716d;display:flex;align-items:center;gap:8px}.local-note i{width:6px;height:6px;background:#74974a;border-radius:50%}.ghost{border:1px solid var(--line);border-radius:99px;background:transparent;padding:10px 14px;font-size:12px}.ghost span{margin-left:9px}main{max-width:1160px;margin:auto;padding:0 32px}.intro{display:flex;align-items:center;justify-content:space-between;padding:53px 0 35px}.eyebrow{margin:0 0 13px;font-size:10px;font-weight:750;letter-spacing:1.8px;color:#7a8174}h1{font-weight:650;letter-spacing:-2.7px;line-height:1.08;font-size:54px;margin:0 0 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32px}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.section-heading .eyebrow{font-size:9px;margin-bottom:9px}h2{font-size:24px;letter-spacing:-.7px;font-weight:620;margin:0}.small-icon{background:#f4f6ef;border-radius:12px;padding:12px;display:grid;place-items:center;color:#6c7f59}.small-icon svg{width:22px;height:22px}fieldset{padding:0;margin:0 0 23px;border:0}legend,label{font-size:12px;font-weight:600}legend{margin-bottom:10px}.fuel-picker{display:grid;grid-template-columns:1fr 1fr;gap:10px}.fuel-option{position:relative;cursor:pointer}.fuel-option input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}.fuel-option>span{border:1px solid var(--line);border-radius:11px;height:50px;padding:0 13px;display:flex;align-items:center;gap:7px;font-size:13px;font-weight:550}.fuel-option small{font-size:10px;color:var(--muted);font-weight:400}.fuel-option svg{width:16px;height:16px;margin-left:auto;visibility:hidden}.fuel-option input:checked+span{border-color:#8ba55f;background:#f5f9eb}.fuel-option input:checked+span svg{visibility:visible}.fuel-option input:focus-visible+span{outline:3px solid #6c9449;outline-offset:3px}.fuel-dot{display:inline-block;width:7px;height:7px;border-radius:50%;flex-shrink:0}.ethanol{background:#81a340}.gas{background:#df9a47}.field{margin:0 0 20px}.field label{display:block;margin:0 0 9px}.input-wrap{display:flex;align-items:center;gap:8px;border:1px solid #dce1d7;border-radius:10px;padding:0 14px;height:52px;background:#fcfdfb;transition:border-color .15s}.input-wrap:focus-within{border-color:#78984a;box-shadow:0 0 0 3px #88a95713}.input-wrap span{font-size:12px;color:#7f897e;white-space:nowrap}.input-wrap input{width:100%;min-width:0;border:0;background:transparent;outline:0!important;padding:12px 0;font-size:19px;font-weight:550;color:var(--ink);font-variant-numeric:tabular-nums}.input-wrap input::placeholder{color:#adb5a7;font-weight:400}.input-wrap.invalid{border-color:#bf5647}.field>small{display:block;color:#8c948a;font-size:10px;line-height:1.6;margin-top:7px}.quantity-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:9px;gap:10px}.mini-toggle{background:#f1f3ec;border-radius:7px;padding:3px;display:flex}.mini-toggle button{padding:5px 9px;border:0;background:transparent;color:#7c8677;border-radius:5px;font-size:10px}.mini-toggle button.selected{background:#fff;box-shadow:0 1px 4px #172c2b12;color:var(--ink);font-weight:600}.quantity-input{margin-bottom:20px}.text-button{border:0;padding:0;background:none;font-size:10px;font-weight:600;color:#557930;text-decoration:underline;text-underline-offset:3px}.primary-button{background:var(--ink);border:0;border-radius:10px;color:white;display:flex;align-items:center;justify-content:space-between;width:100%;padding:17px 18px;font-size:13px;font-weight:550;margin-top:23px;transition:background .2s,transform .2s}.primary-button:hover{background:#294c42}.primary-button:active{transform:scale(.99)}.primary-button svg{width:20px;height:20px;color:var(--green)}.field-help{font-size:12px;line-height:1.7;color:var(--muted);margin:0 0 20px}.measurement-tip{padding:12px 14px;background:#f5f7ee;color:#68735e;border-radius:10px;font-size:10px;line-height:1.7}.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.fuel-caption{font-size:13px;display:flex;gap:8px;align-items:center;margin:20px 0 14px}.form-error{color:#ab3e31;font-size:12px;line-height:1.6;padding:10px 12px;background:#fff3ef;border-radius:8px}.result-panel{border-radius:20px;padding:29px 32px;background:#172f2b;color:#f5f9ec;position:relative;overflow:hidden;display:flex;flex-direction:column}.result-panel:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 100% 0,#31524077,transparent 60%);pointer-events:none}.result-panel>*{position:relative}.result-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.result-tag{letter-spacing:1.5px;font-size:9px;color:#b4c6ac}.result-state{font-size:8px;letter-spacing:1px;color:#c4dc9e;border:1px solid #72835b66;border-radius:99px;padding:6px 9px}.result-main{margin-top:47px}.result-main>p:first-child{font-size:13px;color:#ced9cc;margin:0 0 9px}.big-result{display:flex;gap:12px;align-items:baseline;line-height:1.2;margin:0 0 10px;overflow-wrap:anywhere}.big-result>span:first-child{font-size:76px;font-weight:550;letter-spacing:-4px;color:var(--green);font-variant-numeric:tabular-nums}.big-result>span:nth-child(2){font-size:21px;font-weight:450;color:#bfcdb7}.result-subtitle{font-size:12px;line-height:1.7;margin:0;color:#95ad9f;min-height:41px}.road{display:flex;align-items:center;gap:10px;color:var(--green);margin:35px 0 31px}.road-start{width:9px;height:9px;border:2px solid #8da781;border-radius:50%}.road-line{flex:1;border-top:1px dashed #648066}.road-end{width:12px;height:12px;border:3px solid var(--green);border-radius:50%;box-shadow:0 0 0 5px #d3f36a12}.road svg{width:22px;height:22px}.result-metrics{display:grid;grid-template-columns:1fr 1fr;gap:26px 20px;border-top:1px solid #cbd5b91f;padding-top:26px}.result-metrics span{display:block;color:#93aa9b;font-size:10px;margin:0 0 8px}.result-metrics strong{font-size:20px;font-weight:500;letter-spacing:-.4px;overflow-wrap:anywhere}.result-disclaimer{font-size:10px;line-height:1.8;color:#869f90;max-width:340px;margin:29px 0 20px}.result-actions{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap}.save-button{border:1px solid #7f977244;color:#dbebce;background:transparent;border-radius:8px;padding:11px 13px;display:flex;gap:20px;align-items:center;font-size:10px;min-height:39px}.save-button:disabled{opacity:.35}.save-button:not(:disabled):hover{background:#ffffff0a}.save-button span{color:var(--green)}.history-section{margin:41px 0 27px}.history-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:21px}.history-heading .eyebrow{font-size:9px;margin-bottom:8px}.history-heading h2{font-size:21px}.history-heading h2>span{display:inline-block;vertical-align:middle;margin-left:10px;background:#e8ecdf;border-radius:6px;font-size:10px;padding:4px 7px;letter-spacing:0}.device-note{font-size:10px;color:#91998c}.empty-history{border:1px dashed #d3dbca;border-radius:12px;padding:23px;display:flex;gap:16px;align-items:center;color:#81906f}.empty-history>span{font-size:26px;font-weight:300}.empty-history p{font-size:12px;margin:0;color:#74806c;line-height:1.7}.empty-history small{display:block;font-size:10px;color:#99a18f}.history-row{display:grid;grid-template-columns:1.2fr 1fr 1fr auto;gap:15px;align-items:center;padding:18px 20px;background:white;border:1px solid var(--line);border-radius:12px;margin-bottom:9px}.history-fuel{display:flex;gap:11px;align-items:center}.history-fuel strong{display:block;font-size:12px;font-weight:600}.history-row small{display:block;color:#969e90;font-size:10px;margin-top:5px}.history-number{font-size:14px;font-weight:600;letter-spacing:-.3px}.delete-history{color:#94a08b;border:0;background:transparent;padding:8px;font-size:20px}.help{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;margin:30px 0 0}.help summary{cursor:pointer;font-size:12px;font-weight:550;list-style:none;display:flex;justify-content:space-between;align-items:center}.help summary::-webkit-details-marker{display:none}.help summary span{font-size:18px;color:#8e9c7e}.help>div{font-size:12px;line-height:1.9;color:var(--muted);max-width:850px;padding:12px 0 3px}.help a{color:#47692d;text-underline-offset:3px}footer{max-width:1160px;margin:auto;padding:27px 32px 34px;display:flex;gap:18px;align-items:center;font-size:10px;color:#8b9484}.footer-brand{font-size:17px;font-weight:700;color:#5b6b51;letter-spacing:-.6px}.footer-brand span{color:#87a54c}footer a{margin-left:auto;text-decoration:none;font-size:10px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:13px 20px;color:#fff;background:var(--ink);border:1px solid #647955;border-radius:12px;box-shadow:0 8px 24px #172c2b22;font-size:12px;z-index:10;max-width:90%;text-align:center}
@media(min-width:1400px){.intro{padding-top:62px}}@media(max-width:850px){.header-inner,main{padding-left:24px;padding-right:24px}.header-inner{height:80px}.local-note{display:none}.intro{padding-top:38px}h1{font-size:48px}.intro-badge{margin-right:0}.workspace{gap:16px}.calculator,.result-panel{padding:25px 23px}.fuel-option small{display:none}.big-result>span:first-child{font-size:62px}.tabs{gap:24px}.tab{font-size:12px}.section-heading h2{font-size:21px}.result-top{align-items:flex-start}.result-tag{max-width:100px;line-height:1.6}.result-state{font-size:7px}}
@media(max-width:640px){.header-inner{height:72px;padding:0 20px}.brand{font-size:24px}.brand-icon{height:35px;width:35px;border-radius:10px}.brand-icon svg{width:21px;height:21px}.ghost{font-size:10px;padding:9px 10px}.header-right{gap:0}main{padding:0 18px}.intro{padding:34px 3px 26px}.intro .eyebrow{font-size:8px;letter-spacing:1.5px;margin-bottom:13px}h1{font-size:43px;letter-spacing:-2.1px;margin-bottom:13px}.intro-text{font-size:12px;line-height:1.8}.mobile-break{display:block}.intro-badge{display:none}.tabs{gap:0;justify-content:space-between;margin-bottom:20px}.tab{font-size:11px;padding:17px 1px 15px}.tab-number{font-size:8px;margin-right:4px}.workspace{grid-template-columns:1fr;gap:17px}.calculator{padding:25px 22px;border-radius:17px}.section-heading{margin-bottom:24px}.section-heading h2{font-size:23px}.section-heading .eyebrow{font-size:8px}.small-icon{padding:11px}.fuel-option>span{height:49px}.fuel-option small{display:inline}legend,label{font-size:12px}.input-wrap{height:52px}.input-wrap input{font-size:19px}.field>small,.text-button{font-size:10px}.primary-button{margin-top:24px;padding:17px}.result-panel{padding:25px;border-radius:17px;min-height:470px}.result-tag{max-width:unset;font-size:8px;line-height:1.6}.result-state{font-size:7px}.result-main{margin-top:30px}.big-result>span:first-child{font-size:70px}.result-subtitle{min-height:22px}.road{margin:28px 0 26px}.result-metrics{gap:23px 20px;padding-top:24px}.result-metrics strong{font-size:20px}.result-disclaimer{margin:23px 0 17px;font-size:10px}.save-button{font-size:11px}.history-section{margin-top:31px}.history-heading h2{font-size:20px}.device-note{font-size:8px}.history-heading{margin-bottom:18px}.empty-history{padding:19px 16px;gap:12px}.empty-history p{font-size:11px}.empty-history small{font-size:9px}.history-row{grid-template-columns:1fr 1fr auto;padding:15px 13px;gap:9px}.history-row .history-cost{display:none}.history-number{font-size:13px}.history-row small{font-size:9px}.help{margin-top:25px;padding:20px 3px}.help summary{font-size:11px}.help>div{font-size:11px}footer{flex-wrap:wrap;gap:12px 15px;padding:25px 21px 30px}footer>a{width:100%;margin:0;font-size:9px}.footer-brand{font-size:16px}.toast{bottom:18px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.big-result>span.text-result{font-size:clamp(38px,5.2vw,58px);letter-spacing:-2px}