:root{
  --bg:#f4f7f4;--paper:#fff;--ink:#17231c;--muted:#617066;--line:#d9e1da;
  --green:#1f6944;--green-dark:#164c32;--green-soft:#e3f1e7;--lime:#edf6d9;
  --sun:#d69618;--sun-soft:#fff2cc;--blue:#236880;--blue-soft:#e5f1f5;
  --warn:#fff6dc;--shadow:0 18px 52px rgba(31,72,47,.10);--radius:18px;--max:1160px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.66;overflow-x:hidden;overflow-wrap:anywhere;-webkit-text-size-adjust:100%}
img,svg,video,iframe{max-width:100%;height:auto}
a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}
button,input,select{font:inherit}.wrap{width:min(var(--max),calc(100% - 32px));margin-inline:auto;min-width:0}
.site-header{position:sticky;top:0;z-index:40;background:rgba(244,247,244,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{height:70px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:900;letter-spacing:-.025em}.mark{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:var(--green-dark);color:#fff;font-size:19px;flex:0 0 auto}.navlinks{display:flex;gap:18px;align-items:center;font-size:14px}.navlinks a{color:var(--ink)}.menu{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;min-height:40px}
.breadcrumb{font-size:13px;color:var(--muted);padding-top:20px}.breadcrumb a{color:var(--muted)}
.hero{padding:54px 0 38px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:42px;align-items:center}.hero-grid>*{min-width:0}.eyebrow{display:inline-flex;background:var(--green-soft);color:var(--green-dark);padding:7px 11px;border-radius:999px;font-size:13px;font-weight:850;margin-bottom:16px}
h1,h2,h3{line-height:1.14;letter-spacing:-.035em;margin:0 0 15px}h1{font-size:clamp(40px,5.4vw,66px)}h2{font-size:clamp(28px,3.2vw,40px)}h3{font-size:21px}.lead{font-size:19px;color:var(--muted);max-width:760px}.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}.chip{background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:999px;font-size:13px}
.calculator{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;min-width:0;width:100%}.calc-head{display:flex;justify-content:space-between;gap:12px;align-items:start;margin-bottom:18px}.calc-head h2,.calc-head h3{margin:0}.badge{font-size:11px;font-weight:850;background:var(--sun-soft);color:#6b4d0a;padding:6px 9px;border-radius:999px;white-space:nowrap}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:13px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field.full{grid-column:1/-1}label{font-size:13px;font-weight:780}.hint{font-size:11px;color:var(--muted)}
input,select{width:100%;max-width:100%;border:1px solid #c9d5cc;background:#fff;border-radius:11px;padding:12px 13px;color:var(--ink);min-width:0}input:focus,select:focus{outline:3px solid rgba(31,105,68,.13);border-color:var(--green)}
.primary,.secondary{border:0;border-radius:12px;padding:13px 16px;font-weight:850;min-height:49px;cursor:pointer;touch-action:manipulation}.primary{background:var(--green-dark);color:#fff;width:100%;margin-top:16px}.primary:hover{filter:brightness(.97)}.secondary{background:var(--blue-soft);color:#174b5d;border:1px solid #bfd5dd}.button-row{display:flex;gap:10px;align-items:center;margin-top:14px}.button-row .primary{margin-top:0;flex:1}.button-row .secondary{flex:0 0 auto}
.api-status{display:none;margin-top:12px;padding:11px 12px;border-radius:10px;background:#f5f8f5;border:1px solid var(--line);font-size:12px;color:var(--muted)}.api-status.show{display:block}.location-results{display:none;margin-top:10px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}.location-results.show{display:block}.location-option{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid var(--line);background:#fff;padding:11px 12px;cursor:pointer;color:var(--ink)}.location-option:last-child{border-bottom:0}.location-option:hover{background:#f3f8f4}.location-option small{display:block;color:var(--muted);margin-top:2px}
.result{display:none;margin-top:16px;background:var(--green-soft);padding:17px;border-radius:13px;border:1px solid #bdd8c5}.result.show{display:block}.result .value{font-size:30px;line-height:1.15;font-weight:900;letter-spacing:-.04em;color:#12472e}.result small{display:block;color:#50645a;margin-top:7px}.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:13px}.result-kpi{background:#fff;border:1px solid #c7dacd;border-radius:10px;padding:10px}.result-kpi b{display:block;font-size:16px;color:var(--ink)}.result-kpi span{font-size:11px;color:var(--muted)}
.note{margin-top:14px;padding:13px 14px;background:var(--warn);border:1px solid #e8d79e;border-radius:12px;font-size:13px;color:#544b32}.quick-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px;padding-top:15px;border-top:1px solid var(--line)}.quick-actions-label{width:100%;font-size:12px;font-weight:850;color:var(--muted);text-transform:uppercase;letter-spacing:.055em}.quick-action{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:9px 12px;border:1px solid #b8cdbd;background:#f5faf6;border-radius:11px;color:var(--green-dark);font-size:13px;font-weight:820;text-decoration:none}.quick-action:hover{background:var(--green-soft);text-decoration:none}.result-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}.result-action{display:inline-flex;align-items:center;justify-content:center;padding:10px 12px;border-radius:10px;background:#fff;color:var(--green-dark);border:1px solid #a9c8b2;font-weight:820;font-size:13px;text-decoration:none}.result-action:hover{background:#f7fbf8;text-decoration:none}
.section{padding:54px 0}.section.white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-head{max-width:790px;margin-bottom:26px}.section-head p{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;min-width:0}.card p{color:var(--muted);margin:0}.card a.more{display:inline-block;margin-top:13px;font-weight:800}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:34px;align-items:start}.content-grid>*{min-width:0}.prose{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px}.prose p,.prose li{color:#35443a}.prose h2{font-size:30px;margin-top:36px}.prose h3{margin-top:26px}.prose ul,.prose ol{padding-left:22px}.toc{position:sticky;top:92px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}.toc strong{display:block;margin-bottom:8px}.toc a{display:block;font-size:13px;color:#4c5e53;padding:5px 0}.callout{background:#f1f8f3;border-left:4px solid var(--green);padding:15px 16px;border-radius:0 12px 12px 0;margin:20px 0}.formula{font-size:20px;font-weight:900;text-align:center;background:#f6f8f6;border:1px solid var(--line);padding:17px;border-radius:13px;margin:20px 0;overflow:auto}.table-wrap{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}.table{border-collapse:collapse;width:100%;font-size:14px}.table th,.table td{padding:11px 9px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}.table th{background:#f4f7f4}.faq{padding:16px 0;border-top:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:830}.faq p{margin-bottom:0}.sources{background:#f6f8f6;border:1px solid var(--line);border-radius:13px;padding:15px;font-size:13px;margin-top:24px}.sources ul{margin:7px 0 0}
.editorial-meta{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;margin:0 0 24px;padding:12px 14px;border:1px solid var(--line);background:#fbfcfb;border-radius:13px;font-size:12px;color:var(--muted)}.editorial-meta strong{color:var(--ink)}.author-box{margin:28px 0 0;padding:17px;border:1px solid var(--line);border-radius:14px;background:#f6f8f6}.author-box strong{display:block;margin-bottom:4px}
.next-step{margin:30px 0 6px;padding:20px;border:1px solid #bdd1c2;background:linear-gradient(135deg,#f5faf6,#eaf4ec);border-radius:16px}.next-step-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:13px}.next-step h3{margin:0;font-size:21px}.next-step p{margin:5px 0 0;color:var(--muted)}.next-step-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.next-step-link{display:flex;flex-direction:column;justify-content:center;min-height:72px;padding:12px 13px;border:1px solid #c8d8cb;background:#fff;border-radius:12px;text-decoration:none}.next-step-link:hover{border-color:#8eaa95;box-shadow:0 6px 18px rgba(31,72,47,.07);text-decoration:none}.next-step-link strong{font-size:14px;color:var(--ink);line-height:1.25}.next-step-link span{font-size:12px;color:var(--muted);margin-top:4px}
.checklist{list-style:none;padding-left:0!important}.checklist li{position:relative;padding:9px 0 9px 28px;border-bottom:1px solid var(--line)}.checklist li:before{content:"✓";position:absolute;left:0;top:9px;color:var(--green);font-weight:900}.trust-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:20px 0}.trust-item{padding:16px;border:1px solid var(--line);border-radius:14px;background:#f8faf8}.trust-item strong{display:block;margin-bottom:5px}.trust-item span{font-size:13px;color:var(--muted)}
.monthly-chart{display:grid;grid-template-columns:repeat(12,1fr);gap:5px;align-items:end;height:150px;margin-top:16px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff}.bar{display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;gap:4px}.bar i{display:block;width:100%;min-height:2px;background:var(--sun);border-radius:5px 5px 2px 2px}.bar span{font-size:9px;color:var(--muted)}
.site-footer{margin-top:58px;background:#153d29;color:#eaf2ec;padding:42px 0 28px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px}.site-footer a{color:#eaf2ec}.footer-grid p{color:#b9ccc0}.fine{margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:#a8c0af}
@media(max-width:980px){.hero-grid,.content-grid{grid-template-columns:1fr}.hero{padding:42px 0 30px}.hero-grid{gap:26px}.toc{display:none}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.calculator{max-width:780px}.next-step-links{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.wrap{width:min(100% - 24px,var(--max))}.nav{height:62px;gap:10px}.brand{font-size:15px;min-width:0}.brand span:last-child{white-space:nowrap}.mark{width:32px;height:32px;border-radius:9px}.navlinks{display:none}.menu{display:block;cursor:pointer}.nav.open .navlinks{display:flex;position:absolute;top:58px;left:12px;right:12px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:2px;max-height:calc(100vh - 80px);overflow:auto}.nav.open .navlinks a{display:block;padding:11px 12px;border-radius:9px}.nav.open .navlinks a:hover{background:#f2f7f3;text-decoration:none}.breadcrumb{padding-top:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}h1{font-size:clamp(34px,10vw,46px);letter-spacing:-.045em}h2{font-size:clamp(25px,7.5vw,34px)}.prose h2{font-size:27px}.lead{font-size:17px}.hero{padding:32px 0 25px}.hero-grid{gap:20px}.chips{gap:7px;margin-top:16px}.chip{font-size:12px}.calculator{padding:18px;border-radius:15px}.calc-head{flex-wrap:wrap;align-items:center}.calc-head h2,.calc-head h3{font-size:22px}.grid2,.grid3{grid-template-columns:1fr}.field.full{grid-column:auto}input,select{font-size:16px;min-height:46px}.primary,.secondary{font-size:16px;min-height:50px}.button-row{flex-direction:column}.button-row .primary,.button-row .secondary{width:100%}.result .value{font-size:27px}.result-grid{grid-template-columns:1fr}.section{padding:38px 0}.prose{padding:20px;border-radius:15px}.prose ul,.prose ol{padding-left:20px}.cards,.footer-grid,.trust-grid{grid-template-columns:1fr}.section-head{margin-bottom:20px}.card{padding:17px}.table{font-size:13px;min-width:560px}.formula{font-size:17px;padding:14px 10px}.quick-action{flex:1 1 calc(50% - 7px);padding:10px 9px}.next-step{padding:17px;margin:24px 0 4px}.next-step-head{display:block}.next-step-links{grid-template-columns:1fr}.next-step-link{min-height:64px}.result-actions{display:grid;grid-template-columns:1fr}.result-action{min-height:44px}.monthly-chart{gap:3px;height:130px}.bar span{font-size:8px}.site-footer{margin-top:38px;padding-top:34px}}
@media(max-width:390px){.wrap{width:calc(100% - 18px)}.brand{font-size:14px}.mark{width:30px;height:30px}h1{font-size:32px}.calculator,.prose{padding:16px}.quick-action{flex-basis:100%}.monthly-chart{height:115px}}