:root{--text:#0f172a;--muted:#64748b;--border:#d6dee8;--green:#16a34a;--green-dark:#087f3a;--green-soft:#f0fdf4;--blue-soft:#eff6ff;--orange-soft:#fff7ed;--shadow:0 18px 44px rgba(18,48,68,.10);--brand-gradient:linear-gradient(135deg,#048a3d 0%,#16a34a 46%,#7ed321 100%)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--text);line-height:1.55;font-family:ui-rounded,"SF Pro Rounded","Aptos","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 18% 10%,rgba(132,209,38,.15),transparent 30%),radial-gradient(circle at 82% 26%,rgba(24,168,75,.11),transparent 34%),linear-gradient(145deg,#f4f7f5,#eef5f0 52%,#fff)}
a{color:inherit}button,input,select{font:inherit}[hidden]{display:none!important}.skip-link{position:absolute;left:-999px;top:12px;z-index:1000;padding:10px 14px;border-radius:10px;background:#fff;color:#2563eb;font-weight:850}.skip-link:focus{left:12px}.page-shell{width:min(1080px,calc(100% - 28px));margin:0 auto;padding:18px 0 42px}.site-header{text-align:center;padding:18px 0 16px}.site-logo-main{display:block;width:min(430px,88vw);height:auto;margin:0 auto}.top-nav{display:flex;justify-content:center;gap:9px;flex-wrap:wrap;margin:0 0 24px}.top-nav a{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:9px 14px;border:1px solid rgba(227,233,231,.9);border-radius:14px;background:rgba(255,255,255,.58);color:#315564;text-decoration:none;font-weight:850}.top-nav a.active{color:var(--green-dark);border-color:rgba(24,168,75,.30)}
.hero{padding:clamp(23px,4vw,36px);border:1px solid rgba(227,233,231,.9);border-radius:clamp(24px,4vw,34px);background:linear-gradient(155deg,rgba(255,255,255,.68),rgba(244,247,245,.52),rgba(227,233,231,.36));box-shadow:0 24px 56px rgba(18,48,68,.13);text-align:center}.eyebrow{margin:0 0 7px;color:var(--green-dark);font-size:13px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.hero h1{margin:0 auto 9px;max-width:850px;font-size:clamp(34px,5.2vw,54px);line-height:1.03;letter-spacing:-.03em}.hero p{max-width:760px;margin:0 auto;color:#536b78;font-size:clamp(16px,2.3vw,18px)}.hero-note{margin-top:10px!important;font-size:13px!important;color:var(--muted)!important}
.tool-card,.content-card,.cta-card{margin-top:22px;border:1px solid rgba(227,233,231,.92);border-radius:28px;background:rgba(255,255,255,.80);box-shadow:var(--shadow)}.tool-card{padding:clamp(20px,4vw,34px)}.tool-head{margin-bottom:16px;text-align:center}.tool-head>div{max-width:780px;margin:0 auto}.tool-head h2,.content-card h2,.cta-card h2{margin:0;font-size:clamp(24px,3.3vw,33px);line-height:1.12}.tool-head p{margin:5px 0 0;color:var(--muted)}
.choice-panel{margin:0 0 18px;padding:0;border:0}.choice-panel legend{margin-bottom:8px;color:#264454;font-size:14px;font-weight:900}.choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.choice-button{min-height:78px;padding:13px;border:1px solid rgba(134,239,172,.50);border-radius:15px;background:rgba(255,255,255,.68);color:#315564;text-align:left;cursor:pointer}.choice-button strong,.choice-button span{display:block}.choice-button strong{font-size:15px}.choice-button span{margin-top:3px;color:var(--muted);font-size:12px}.choice-button.active{background:linear-gradient(135deg,rgba(187,247,208,.65),rgba(220,252,231,.76));border-color:rgba(74,222,128,.70);color:#166534;box-shadow:0 4px 12px rgba(22,163,74,.08)}.choice-button.active span{color:#3f6e50}.service-switch{margin:0 0 15px;padding:13px 14px;border:1px solid #bfdbfe;border-radius:14px;background:#eff6ff}.service-switch label{display:block;margin-bottom:6px;color:#1e3a8a;font-size:13px;font-weight:900}.service-switch select{width:100%;min-height:46px;padding:10px 12px;border:1px solid #bfdbfe;border-radius:11px;background:#fff;color:var(--text)}
.precision-cta{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px 18px;margin:0 0 18px;padding:17px 18px;border:1px solid rgba(74,222,128,.58);border-radius:17px;background:linear-gradient(135deg,rgba(240,253,244,.94),rgba(247,254,231,.76));box-shadow:0 10px 24px rgba(22,163,74,.08)}.precision-copy h3{margin:4px 0 5px;font-size:19px;line-height:1.2;color:#14532d}.precision-copy p{margin:0;color:#456454;font-size:14px}.precision-badge{display:inline-flex;padding:4px 8px;border-radius:999px;background:#dcfce7;color:#166534;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.05em}.precision-button{white-space:nowrap}.precision-or{grid-column:1/-1;margin:0;padding-top:8px;border-top:1px solid rgba(134,239,172,.45);color:var(--muted);font-size:12px;font-weight:700}
.native-file-input{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}.precision-button:disabled{cursor:wait;opacity:.76}.bill-reading{grid-column:1/-1;display:flex;align-items:center;gap:9px;padding:10px 12px;border:1px solid #bbf7d0;border-radius:12px;background:#fff;color:#166534;font-size:13px;font-weight:800}.bill-reading-spinner{width:17px;height:17px;border:2px solid #bbf7d0;border-top-color:#16a34a;border-radius:50%;animation:clima-spin .8s linear infinite}.bill-autofill{grid-column:1/-1;padding:13px 14px;border:1px solid #86efac;border-radius:14px;background:#fff}.bill-autofill>div:first-child>strong{color:#14532d}.bill-autofill>div:first-child p{margin:3px 0 0;color:#52705e;font-size:12px}.bill-autofill-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:10px}.bill-autofill-grid span{min-width:0;padding:9px 10px;border-radius:11px;background:#f0fdf4}.bill-autofill-grid small,.bill-autofill-grid strong{display:block}.bill-autofill-grid small{color:#5e7466;font-size:11px}.bill-autofill-grid strong{margin-top:2px;color:#14532d;font-size:13px;overflow-wrap:anywhere}.field input.bill-autofilled{border-color:#22c55e;background:#f0fdf4;box-shadow:0 0 0 3px rgba(34,197,94,.08)}.bill-impact{margin-top:10px;padding:12px 13px;border:1px solid #bbf7d0;border-radius:13px;background:#f0fdf4}.bill-impact strong{display:block;color:#14532d;font-size:13px}.bill-impact p{margin:3px 0 0;color:#456454;font-size:13px}@keyframes clima-spin{to{transform:rotate(360deg)}}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.field{min-width:0}.field.span-2{grid-column:1/-1}.field label{display:block;margin-bottom:6px;font-size:14px;font-weight:850;color:#264454}.field input,.field select{width:100%;min-height:48px;padding:11px 12px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--text);outline:none}.field input:focus,.field select:focus,.service-switch select:focus{border-color:rgba(22,163,74,.58);box-shadow:0 0 0 3px rgba(22,163,74,.09)}.field small{display:block;margin-top:5px;color:var(--muted);line-height:1.35}.advanced-panel{margin-top:16px;border:1px solid var(--border);border-radius:15px;background:#fbfcfd}.advanced-panel summary{padding:13px 15px;cursor:pointer;color:#315564;font-weight:900}.advanced-panel summary::after{content:" · solo se hai etichetta o scheda tecnica";color:var(--muted);font-size:12px;font-weight:700}.advanced-grid{padding:0 15px 15px}.actions{display:flex;gap:10px;margin-top:20px}.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 16px;border-radius:12px;border:1px solid transparent;cursor:pointer;text-decoration:none;font-weight:900}.button.primary{background:var(--brand-gradient);color:#fff;box-shadow:0 12px 24px rgba(8,127,58,.20)}.button.secondary{background:#fff;color:#315564;border-color:var(--border)}.status{margin-top:10px;min-height:22px;color:var(--muted);font-size:14px}.status.ok{color:#166534}.status.error{color:#b91c1c}
.result-wrap{margin-top:20px;padding-top:18px;border-top:1px solid rgba(203,213,225,.78)}.source-line{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:10px;color:var(--muted);font-size:12px}.source-badge{display:inline-flex;padding:6px 9px;border-radius:999px;background:#e8f5ec;color:#166534;font-weight:900}.plain-result{margin-bottom:12px;padding:17px 18px;border:1px solid #bfdbfe;border-radius:17px;background:var(--blue-soft)}.plain-result h3{margin:0 0 5px;font-size:18px;color:#1e3a8a}.plain-result p{margin:0;color:#334155;font-size:15px}.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.metric{min-width:0;padding:14px;border:1px solid rgba(203,213,225,.8);border-radius:16px;background:#f8fafc}.metric strong{display:block;font-size:clamp(21px,2.7vw,29px);line-height:1.08;overflow-wrap:anywhere}.metric span{display:block;margin-top:4px;color:var(--muted);font-size:13px}.accent-metric{border-color:#86efac;background:#f0fdf4}.result-note{margin:10px 0 0;padding:11px 13px;border-radius:12px;background:#fff7ed;color:#7c2d12;font-size:13px}.scenario-wrap{margin-top:18px}.scenario-wrap h3{margin:0 0 10px;font-size:18px}.scenario-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.scenario-card{padding:14px;border:1px solid #dbeafe;border-radius:15px;background:#f8fbff}.scenario-card strong,.scenario-card span{display:block}.scenario-card strong{font-size:17px}.scenario-card .scenario-energy{margin-top:7px;color:#1e3a8a;font-size:19px;font-weight:900}.scenario-card span{margin-top:3px;color:var(--muted);font-size:12px}.scenario-note{margin:9px 0 0;color:var(--muted);font-size:12px}.detail-panel{margin-top:14px;border:1px solid var(--border);border-radius:14px;background:rgba(255,255,255,.76)}.detail-panel summary{padding:12px 14px;cursor:pointer;font-weight:850;color:#315564}.method-copy{padding:0 14px 14px;color:#526774;font-size:13px}.method-copy p{margin:8px 0}
.cta-card{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;padding:clamp(20px,3.5vw,30px)}.cta-card p{margin:7px 0 0;color:var(--muted);max-width:720px}.secondary-cta{margin-top:12px;background:rgba(248,250,252,.88)}.content-card{padding:clamp(20px,3.5vw,30px)}.content-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}.info-box{padding:14px;border:1px solid rgba(203,213,225,.75);border-radius:15px;background:#f8fafc}.info-box h3{margin:0 0 6px;font-size:16px}.info-box p{margin:0;color:#536b78;font-size:13px}.footer{padding:28px 10px 0;text-align:center;color:var(--muted);font-size:13px}.footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 14px;margin-top:10px}.footer a{color:#315564}
@media(max-width:800px){.choice-grid,.scenario-grid,.content-grid,.bill-autofill-grid{grid-template-columns:1fr}.cta-card,.precision-cta{grid-template-columns:1fr}.precision-button{width:100%}}
@media(max-width:620px){.page-shell{width:min(100% - 18px,1080px)}.form-grid,.metrics{grid-template-columns:1fr}.field.span-2{grid-column:auto}.button{width:100%}.actions{display:grid;grid-template-columns:1fr}.choice-grid{position:static}.top-nav{gap:6px}.top-nav a{padding:8px 10px;font-size:13px}}