:root{
  --bg:#f7f9fb;--surface:#fff;--surface-2:#f0f5f4;--text:#14201d;--muted:#4b5b56;--border:#ccd8d4;
  --brand:#075e54;--brand-2:#0a7668;--brand-soft:#e8f4f1;--accent:#9a5a00;--danger:#9b1c1c;--ok:#146c43;
  --shadow:0 8px 24px rgba(10,38,31,.08);--radius:16px;--radius-sm:10px;--max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6;text-rendering:optimizeLegibility}
a{color:var(--brand);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
img,svg{max-width:100%;height:auto}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid #0b7c6f;outline-offset:3px}
.skip-link{position:absolute;left:-9999px;top:auto}.skip-link:focus{left:12px;top:12px;z-index:1000;background:#fff;padding:10px 14px;border-radius:8px;color:#000}
.site-header{background:var(--surface);border-bottom:1px solid var(--border)}
.header-inner{max-width:var(--max);margin:auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:800;letter-spacing:-.02em}.brand svg{width:34px;height:34px}.brand span{font-size:1.06rem}
.nav-toggle{display:none;border:1px solid var(--border);background:#fff;border-radius:10px;min-width:44px;min-height:44px;color:var(--text)}
.main-nav{display:flex;align-items:center;gap:18px}.main-nav a{color:#263b35;text-decoration:none;font-weight:650;font-size:.95rem}.main-nav a:hover{color:var(--brand)}
.page{max-width:var(--max);margin:auto;padding:28px 20px 64px}
.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(340px,.95fr);gap:34px;align-items:start;padding:22px 0 18px}
.hero-copy{padding:22px 0}.eyebrow{display:inline-flex;align-items:center;gap:7px;background:var(--brand-soft);color:#084e47;border:1px solid #b9d9d2;border-radius:999px;padding:6px 10px;font-size:.82rem;font-weight:800}.hero h1,.content h1{font-size:clamp(2rem,5vw,3.65rem);line-height:1.02;letter-spacing:-.045em;margin:16px 0 14px}.hero p.lead,.content .lead{font-size:1.14rem;color:#334840;max-width:720px;margin:0 0 18px}.trust-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.trust-pill{font-size:.9rem;font-weight:700;color:#2f433c;background:#fff;border:1px solid var(--border);padding:7px 10px;border-radius:999px}
.calc-card{background:var(--surface);border:1px solid #c4d3ce;border-radius:22px;box-shadow:var(--shadow);padding:20px;min-width:0}.calc-card h2{font-size:1.35rem;margin:0 0 4px;letter-spacing:-.02em}.calc-card .sub{margin:0 0 18px;color:var(--muted);font-size:.95rem}
.tabs{display:grid;grid-template-columns:1fr 1fr;background:#edf3f1;border:1px solid #cad8d3;padding:4px;border-radius:12px;margin-bottom:18px}.tab-btn{min-height:44px;border:0;border-radius:9px;background:transparent;color:#2f433c;font-weight:800}.tab-btn[aria-selected="true"]{background:#fff;color:#064f47;box-shadow:0 1px 5px rgba(0,0,0,.08)}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{min-width:0}.field.full{grid-column:1/-1}.field label{display:block;font-weight:800;margin-bottom:6px;color:#20332d}.hint{display:block;color:var(--muted);font-size:.82rem;margin-top:5px}.input-wrap{display:flex;align-items:stretch;border:1.5px solid #9fb3ac;background:#fff;border-radius:10px;overflow:hidden}.input-wrap:focus-within{border-color:#0b7c6f;box-shadow:0 0 0 3px rgba(11,124,111,.12)}.input-wrap input,.input-wrap select{width:100%;min-width:0;border:0;outline:0;padding:12px 12px;font-size:1rem;color:#14201d;background:#fff;min-height:48px}.unit{display:flex;align-items:center;padding:0 12px;background:#f2f5f4;color:#344a43;border-left:1px solid #d3ddda;font-weight:750;white-space:nowrap}.check-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px}.check{display:flex;align-items:center;gap:8px;min-height:44px}.check input{width:19px;height:19px;accent-color:var(--brand)}
.more-options{margin-top:14px;border-top:1px solid #e0e7e4;padding-top:12px}.more-options summary{font-weight:800;color:var(--brand);cursor:pointer;min-height:44px;display:flex;align-items:center}.more-options[open] summary{margin-bottom:12px}
.form-error{min-height:24px;margin:8px 0 0;color:var(--danger);font-weight:700;font-size:.9rem}
.results{margin-top:18px;padding-top:18px;border-top:1px solid #dce5e2}.primary-result{background:var(--brand-soft);border:1px solid #b8d7d0;border-radius:14px;padding:15px;text-align:center}.primary-result .label{font-size:.85rem;color:#2f534a;font-weight:800}.primary-result strong{display:block;color:#073f39;font-size:clamp(2rem,7vw,2.8rem);line-height:1.1;margin-top:4px;letter-spacing:-.035em}.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:10px}.metric{border:1px solid #d3deda;background:#fff;border-radius:11px;padding:11px;min-width:0}.metric span{display:block;font-size:.8rem;color:var(--muted);font-weight:750}.metric strong{display:block;margin-top:3px;font-size:1.05rem;overflow-wrap:anywhere}.result-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;border-radius:10px;padding:10px 15px;border:1px solid transparent;font-weight:800;text-decoration:none}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:#064f47}.btn-secondary{background:#fff;color:#17362f;border-color:#9fb5ae}.btn-secondary:hover{background:#f1f6f4}.btn-quiet{background:transparent;color:var(--brand);border-color:transparent}.copy-status{min-height:22px;color:var(--ok);font-size:.86rem;font-weight:700;margin-top:5px}
.price-strip{margin:22px 0 6px;background:#102c26;color:#fff;border-radius:16px;padding:16px 18px}.price-head{display:flex;justify-content:space-between;gap:14px;align-items:center;flex-wrap:wrap}.price-head h2{font-size:1.05rem;margin:0}.price-head p{margin:0;color:#d1e1dc;font-size:.82rem}.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}.fuel-price{background:#173a32;border:1px solid #31564d;border-radius:10px;padding:10px}.fuel-price span{display:block;color:#c7dbd5;font-size:.78rem}.fuel-price strong{font-size:1.08rem}.source-note{font-size:.78rem;color:#52655f;margin-top:8px}
.section{padding:42px 0;border-top:1px solid #dde6e3}.section h2,.content h2{font-size:clamp(1.45rem,3vw,2rem);line-height:1.15;letter-spacing:-.025em;margin:0 0 12px}.section h3,.content h3{font-size:1.15rem;margin:26px 0 8px}.section p,.content p{max-width:820px;color:#31453e}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}.card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px}.card h3{margin:0 0 7px;font-size:1.05rem}.card p{font-size:.92rem;color:#4a5e57;margin:0}.card a{font-weight:800}.formula{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#edf3f1;border:1px solid #cbd8d3;border-radius:10px;padding:14px;overflow:auto;color:#17332c;font-weight:700}.steps{padding-left:22px}.steps li{margin:9px 0}.callout{background:#fff8e8;border:1px solid #e5c785;border-left:5px solid #9a5a00;border-radius:12px;padding:14px 16px;margin:18px 0;color:#4f3813}.good-callout{background:#edf8f3;border-color:#b8dac9;border-left-color:#146c43;color:#1f4e38}
.faq details{background:#fff;border:1px solid var(--border);border-radius:11px;padding:0 14px;margin:9px 0}.faq summary{font-weight:800;cursor:pointer;min-height:50px;display:flex;align-items:center}.faq p{padding:0 0 12px;margin:0;color:#3d5049}
.content{max-width:900px;margin:auto;padding:20px 0 48px}.content h1{font-size:clamp(2rem,5vw,3.2rem)}.content ul,.content ol{max-width:820px}.content li{margin:7px 0}.content table{width:100%;border-collapse:collapse;margin:20px 0;background:#fff}.content th,.content td{border:1px solid #d6e0dc;padding:10px;text-align:left;vertical-align:top}.content th{background:#edf3f1}.meta-line{color:var(--muted);font-size:.88rem;margin:8px 0 22px}.legal-note{font-size:.88rem;color:#52645e;background:#eef3f1;border:1px solid #d2ddda;padding:12px;border-radius:10px}
.tool-page{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,420px);gap:28px;align-items:start}.tool-page .content-main{min-width:0}.tool-page .calc-card{position:sticky;top:16px}
.site-footer{background:#102c26;color:#e9f2ef;margin-top:28px}.footer-inner{max-width:var(--max);margin:auto;padding:34px 20px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:24px}.footer-grid h2,.footer-grid h3{font-size:1rem;margin:0 0 9px;color:#fff}.footer-grid p{color:#cbdad5;font-size:.9rem;margin:0}.footer-grid a{display:block;color:#e4efec;text-decoration:none;margin:7px 0;font-size:.9rem}.footer-grid a:hover{text-decoration:underline}.footer-bottom{border-top:1px solid #31524a;margin-top:24px;padding-top:18px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#c4d6d0;font-size:.82rem}.privacy-settings{background:transparent;border:0;color:#fff;text-decoration:underline;padding:0;min-height:36px}
.consent-banner{position:fixed;z-index:999;left:14px;right:14px;bottom:14px;max-width:900px;margin:auto;background:#fff;border:1px solid #a8bab4;border-radius:14px;box-shadow:0 12px 40px rgba(0,0,0,.2);padding:15px}.consent-banner h2{font-size:1.05rem;margin:0 0 5px}.consent-banner p{margin:0;color:#425650;font-size:.9rem}.consent-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.consent-actions button{min-height:44px;border-radius:9px;padding:9px 13px;font-weight:800}.consent-accept{background:var(--brand);color:#fff;border:1px solid var(--brand)}.consent-reject{background:#fff;color:#1b352e;border:1px solid #96aaa3}.consent-more{background:#eef4f2;color:#17362f;border:1px solid #c8d6d2}
.privacy-dialog{border:0;border-radius:16px;padding:0;width:min(520px,calc(100% - 28px));box-shadow:0 20px 60px rgba(0,0,0,.28)}.privacy-dialog::backdrop{background:rgba(8,27,22,.52)}.privacy-dialog-inner{padding:20px}.privacy-dialog h2{margin-top:0}.privacy-row{display:flex;justify-content:space-between;gap:14px;align-items:center;border:1px solid #d7e0dd;border-radius:10px;padding:12px;margin:12px 0}.privacy-dialog menu{display:flex;justify-content:flex-end;gap:8px;padding:0;margin:18px 0 0;flex-wrap:wrap}
.kpi{font-size:clamp(2rem,5vw,3rem);font-weight:900;color:var(--brand);letter-spacing:-.04em}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}.source-list{font-size:.9rem}.badge{display:inline-flex;padding:4px 8px;border-radius:999px;background:#eef5f3;border:1px solid #ccdcd7;color:#36534a;font-size:.78rem;font-weight:800}
@media (max-width:900px){.hero,.tool-page{grid-template-columns:1fr}.tool-page .calc-card{position:static}.hero-copy{padding-bottom:0}.cards{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.price-grid{grid-template-columns:1fr 1fr}}
@media (max-width:720px){.header-inner{padding:11px 14px}.nav-toggle{display:inline-flex;align-items:center;justify-content:center}.main-nav{display:none;position:absolute;left:12px;right:12px;top:64px;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:10px;z-index:50;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:10px;border-radius:8px}.page{padding:20px 14px 52px}.hero{gap:18px;padding-top:8px}.hero h1,.content h1{font-size:2.35rem}.calc-card{padding:16px;border-radius:16px}.field-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.result-grid{grid-template-columns:1fr 1fr}.cards,.two-col{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-inner{padding:30px 16px}.content{padding-top:8px}.section{padding:34px 0}}
@media (max-width:390px){.brand span{font-size:.94rem}.hero h1,.content h1{font-size:2rem}.tabs{grid-template-columns:1fr}.result-grid{grid-template-columns:1fr}.price-grid{grid-template-columns:1fr 1fr}.btn{width:100%}.consent-actions button{flex:1 1 100%}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}