:root{--ink:#1b302a;--muted:#6e7d76;--paper:#f5f4ef;--white:#fffefa;--line:#e3e5dc;--green:#1b6952;--mint:#dcece4;--orange:#f2a65a;--rose:#fff0e9;--shadow:0 18px 50px rgba(26,49,41,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:'DM Sans',sans-serif;font-size:16px;line-height:1.55}.topbar{height:72px;padding:0 max(calc((100vw - 1080px)/2),28px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(27,48,42,.08)}.brand{font:800 20px Manrope,sans-serif;color:var(--ink);text-decoration:none;letter-spacing:-.6px}.brand-mark{color:var(--green);font-size:25px;vertical-align:-2px;margin-right:6px}.privacy{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:8px}.privacy-dot{width:8px;height:8px;border-radius:50%;background:#61a47c}main{max-width:1000px;margin:0 auto;padding:66px 24px 80px}.intro{max-width:620px;margin:0 auto 44px}.eyebrow{text-transform:uppercase;letter-spacing:1.5px;color:var(--green);font-weight:700;font-size:11px}.intro h1{font:800 clamp(42px,7vw,70px)/1.02 Manrope,sans-serif;letter-spacing:-3.5px;margin:15px 0 18px}.intro h1 em{font-style:normal;color:var(--green)}.intro-copy{font-size:18px;max-width:600px;color:#596a62;line-height:1.65;margin:0}.intro-note{display:flex;gap:10px;align-items:flex-start;background:#e8eee6;color:#405950;border-radius:12px;padding:12px 15px;margin-top:21px;font-size:13px}.intro-note span:first-child{color:#c8853f;font-size:17px;line-height:1.2}.calculator,.results{background:var(--white);border:1px solid #ecece5;border-radius:20px;box-shadow:var(--shadow);padding:34px 38px;margin:0 auto;max-width:760px}.step-head{display:flex;align-items:flex-start;gap:14px;margin:4px 0 21px}.step-number{width:32px;height:32px;border-radius:50%;background:var(--mint);color:var(--green);font:700 14px Manrope,sans-serif;display:grid;place-items:center;flex:0 0 auto}.step-head h2{font:700 21px Manrope,sans-serif;letter-spacing:-.5px;margin:1px 0 2px}.step-head p{margin:0;color:var(--muted);font-size:13px}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.choice{appearance:none;text-align:left;border:1px solid var(--line);border-radius:13px;background:white;display:flex;gap:12px;align-items:center;padding:14px;cursor:pointer;color:var(--ink);font:inherit;transition:.18s}.choice:hover{border-color:#a6c7b7}.choice.active{border:1.5px solid var(--green);background:#f3f8f4}.choice-icon{height:38px;width:38px;border-radius:10px;background:#eff3ed;color:var(--green);display:grid;place-items:center;font-size:22px}.choice strong,.choice small{display:block}.choice strong{font-size:13px}.choice small{font-size:11px;color:var(--muted);margin-top:2px}.radio-dot{margin-left:auto;border:1px solid #b8c3bc;width:15px;height:15px;border-radius:50%;position:relative;flex:0 0 auto}.choice.active .radio-dot{border-color:var(--green)}.choice.active .radio-dot:after{content:'';position:absolute;inset:3px;border-radius:50%;background:var(--green)}.input-panel{padding:20px;background:#f8f8f3;border-radius:14px}.field-label,.price-shape label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}.input-with-unit{display:flex;align-items:center;border:1px solid #dfe3da;border-radius:10px;background:#fff;overflow:hidden;max-width:260px}.input-with-unit input{min-width:0;width:100%;border:0;background:transparent;padding:11px 12px;color:var(--ink);font:600 16px 'DM Sans',sans-serif;outline:none}.input-with-unit:focus-within{outline:2px solid #abd0bd;border-color:transparent}.input-with-unit span{white-space:nowrap;padding:0 12px;color:var(--muted);font-size:11px}.periods-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:16px}.periods-row>label,.settings-grid>label{font-size:12px;font-weight:600;color:#45574f}.periods-row .input-with-unit,.settings-grid .input-with-unit{margin-top:6px}.periods-row .input-with-unit input,.settings-grid .input-with-unit input{font-size:14px;padding:9px 10px}.periods-row .input-with-unit span,.settings-grid .input-with-unit span{font-size:10px;padding:0 9px}.more-fields,.equipment-note{border-top:1px solid var(--line);margin-top:18px;padding-top:14px}.more-fields summary,.equipment-note summary{font-size:12px;font-weight:700;color:var(--green);cursor:pointer;list-style:none}.more-fields summary::-webkit-details-marker,.equipment-note summary::-webkit-details-marker{display:none}.more-fields summary:after,.equipment-note summary:after{content:'＋';float:right;font-size:16px}.more-fields[open] summary:after,.equipment-note[open] summary:after{content:'−'}.field-help{font-size:11px;color:var(--muted);margin:10px 0 0}.price-shape{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid var(--line);padding-top:16px;margin-top:17px}.price-shape label{margin:0}.price-shape p{font-size:11px;color:var(--muted);margin:2px 0 0}.price-shape select{font:500 12px 'DM Sans',sans-serif;color:var(--ink);border:1px solid #dfe3da;background:#fff;border-radius:9px;padding:10px;max-width:260px}.hint{display:inline-grid;place-items:center;border:1px solid #9daea4;color:var(--muted);border-radius:50%;width:15px;height:15px;font-size:10px;cursor:help}.source-info{display:flex;gap:10px;background:#edf3ee;border-radius:10px;padding:12px;margin-top:14px;font-size:11px;color:#52645a}.source-info>span{width:17px;height:17px;flex:0 0 auto;border:1px solid #78a38b;border-radius:50%;text-align:center;color:var(--green);font-weight:700}.source-info strong{font-size:12px;color:var(--ink)}.source-info p{margin:3px 0}.source-info a,.how-it-works a{color:var(--green);font-weight:700}.upload-box{border:1.5px dashed #b7c9bd;border-radius:13px;background:#fff;padding:22px;display:flex;align-items:center;flex-direction:column;text-align:center;gap:6px}.upload-icon{width:39px;height:39px;border-radius:50%;background:var(--mint);display:grid;place-items:center;color:var(--green);font-size:22px;margin-bottom:3px}.upload-box strong{font-size:14px}.upload-box>span{font-size:11px;color:var(--muted)}.upload-box input{display:none}.file-button{display:inline-block;background:var(--green);color:#fff;border-radius:8px;padding:8px 14px;font-size:12px;font-weight:700;cursor:pointer;margin-top:8px}.file-status{font-size:11px;color:var(--muted);margin:8px 2px}.upload-box.compact{margin-top:16px;padding:16px}.divider{height:1px;background:var(--line);margin:28px 0}.cost-input{margin-bottom:5px}.equipment-note{margin:16px 0 0}.equipment-note p{font-size:11px;color:var(--muted)}.settings-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.settings-grid>label{background:#f8f8f3;border:1px solid var(--line);padding:12px;border-radius:10px}.primary-button{width:100%;display:flex;align-items:center;justify-content:center;gap:12px;margin-top:28px;border:0;border-radius:11px;background:var(--green);color:white;padding:15px 18px;font:700 15px Manrope,sans-serif;cursor:pointer;transition:background .2s,transform .2s}.primary-button:hover{background:#14533f;transform:translateY(-1px)}.primary-button span{font-size:20px}.error-message{color:#a03926;font-size:12px;min-height:4px;margin:8px 0 0}.hidden{display:none!important}.results{margin-top:28px;padding:34px 38px}.result-heading h2{font:800 30px Manrope,sans-serif;letter-spacing:-1px;margin:5px 0}.result-heading p{color:var(--muted);font-size:13px;margin:0}.warning-box{margin-top:18px;background:#fff3e5;border:1px solid #f0d2a8;color:#69471f;border-radius:11px;padding:13px 15px;font-size:12px}.warning-box ul{padding-left:19px;margin:5px 0 0}.result-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:11px;margin-top:22px}.result-card{border:1px solid var(--line);border-radius:13px;padding:16px;min-height:121px}.result-card.feature{background:#e8f1ea;border-color:#d7e5d9}.result-label{font-size:11px;color:#65756d;display:block;line-height:1.35;min-height:30px}.result-card strong{font:800 25px Manrope,sans-serif;letter-spacing:-1px;display:block;margin:8px 0 3px}.result-card.feature strong{color:var(--green);font-size:32px}.result-detail{font-size:10px;color:var(--muted)}.comparison-card,.chart-card{border:1px solid var(--line);border-radius:14px;padding:18px;margin-top:16px}.comparison-card h3,.chart-card h3{font:700 17px Manrope,sans-serif;margin:4px 0}.comparison-card p{font-size:11px;color:var(--muted);margin:0}.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:15px}.scenario{border-radius:9px;padding:11px;background:#f5f6f1}.scenario span,.scenario strong,.scenario small{display:block}.scenario span{font-size:10px;color:var(--muted)}.scenario strong{font:700 16px Manrope,sans-serif;margin:4px 0}.scenario small{font-size:9px;color:var(--muted)}.scenario.negative strong{color:#a74936}.scenario.positive strong{color:var(--green)}.scenario-custom{display:flex;align-items:center;gap:12px;justify-content:flex-end;font-size:11px;color:var(--muted);margin-top:12px}.scenario-custom .input-with-unit{max-width:130px}.scenario-custom input{font-size:12px;padding:7px}.bars{height:170px;display:flex;align-items:end;gap:7px;padding:14px 3px 0;border-bottom:1px solid var(--line);overflow:hidden}.bar-item{flex:1;min-width:12px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:end;height:100%;gap:5px}.bar-fill{width:min(100%,34px);background:#9bc7ad;border-radius:5px 5px 0 0;min-height:2px}.bar-item span{font-size:9px;color:var(--muted)}.chart-caption{font-size:10px;color:var(--muted)}.result-notes{font-size:11px;color:var(--muted);line-height:1.6;margin:15px 1px}.how-it-works{max-width:760px;margin:22px auto 0;padding:21px 24px;border-left:2px solid #b8cdbd;color:#68766f;font-size:12px}.how-it-works p{max-width:660px;margin:5px 0}.how-it-works a{font-size:11px}footer{max-width:1000px;margin:auto;padding:0 24px 30px;display:flex;justify-content:space-between;color:#8a9690;font-size:10px}footer span:first-child{font-weight:700;color:var(--green)}
@media(max-width:680px){.topbar{padding:0 18px;height:62px}.privacy{font-size:10px}main{padding:42px 14px 56px}.intro{margin-bottom:28px}.intro h1{letter-spacing:-2px}.intro-copy{font-size:15px}.calculator,.results{padding:23px 18px;border-radius:15px}.choice-grid{grid-template-columns:1fr}.periods-row{grid-template-columns:1fr 1fr}.price-shape{align-items:flex-start;flex-direction:column}.price-shape select{max-width:none;width:100%}.settings-grid{grid-template-columns:1fr}.settings-grid>label{display:flex;justify-content:space-between;align-items:center;gap:10px}.settings-grid .input-with-unit{max-width:120px;margin-top:0}.result-grid{grid-template-columns:1fr 1fr}.result-card.feature{grid-column:span 2}.scenario-grid{grid-template-columns:1fr 1fr}.scenario-custom{justify-content:space-between}.result-heading h2{font-size:26px}footer{padding:0 18px 22px;gap:12px}footer span:last-child{text-align:right}}