/* SOLAR INVERTER SIZE CALCULATOR - USCalculators.com | Page 1093
   Accent: --si:#EA580C (orange-600) | Surge Watts + PSW/MSW + DC Cable + Brand Recs */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700;800;900&family=Inter:wght@400;500;600&display=swap');
:root{--navy:#002868;--navy-dark:#00183F;--navy-mid:#003580;--red:#BF0A30;--green:#00875A;--si:#EA580C;--si-dark:#C2410C;--si-deep:#7C2D12;--si-light:#FFF7ED;--si-border:#FED7AA;--si-green:#15803D;--si-green-l:#F0FDF4;--si-green-b:#86EFAC;--si-amber:#D97706;--si-amber-l:#FFFBEB;--si-amber-b:#FDE68A;--si-red:#DC2626;--si-red-l:#FEF2F2;--si-red-b:#FECACA;--si-blue:#1D4ED8;--si-blue-l:#EFF6FF;--si-blue-b:#BFDBFE;--si-teal:#0E7490;--si-teal-l:#ECFEFF;--si-teal-b:#A5F3FC;--si-purple:#7C3AED;--si-purple-l:#F5F3FF;--si-purple-b:#DDD6FE;--white:#fff;--charcoal:#1D1D1F;--gray-text:#5F6368;--border:#E0E4E8;--bg-light:#F7F9FC;--shadow-sm:0 1px 4px rgba(0,0,0,.08);--shadow-md:0 4px 20px rgba(0,0,0,.12)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
.si-wrapper{font-family:'Inter',sans-serif;color:var(--gray-text);background:var(--white);line-height:1.6;width:100%;display:block}
.si-page{max-width:1180px;margin:0 auto;padding:32px 24px 72px;display:block;width:100%}
.si-hero{background:linear-gradient(135deg,var(--si-deep) 0%,var(--si-dark) 55%,var(--si) 100%);border-radius:16px;padding:44px 40px 50px;position:relative;overflow:hidden;margin-bottom:32px}
.si-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 65% 70% at 80% 40%,rgba(254,215,170,.12) 0%,transparent 60%);pointer-events:none}
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.si-hero-inner{position:relative;z-index:2}
.si-hero-badge{display:inline-flex;align-items:center;gap:7px;background:rgba(254,215,170,.15);border:1px solid rgba(254,215,170,.3);color:#FED7AA;font-size:11.5px;font-weight:700;padding:4px 13px;border-radius:20px;margin-bottom:16px}
.si-hero h1{font-family:'Montserrat',sans-serif;font-size:clamp(24px,3.8vw,43px);font-weight:900;color:var(--white);line-height:1.12;letter-spacing:-1px;margin-bottom:12px}
.si-hero h1 em{font-style:normal;color:transparent;background:linear-gradient(90deg,#FED7AA,#A7F3D0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
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.si-grid{display:grid !important;grid-template-columns:1fr 1fr !important;background:var(--white);border:1.5px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-md)}
.si-inputs{padding:28px 26px;border-right:1.5px solid var(--border);background:var(--bg-light)}
.si-inputs h2{font-family:'Montserrat',sans-serif;font-size:16px;font-weight:800;color:var(--navy);margin-bottom:20px;display:flex;align-items:center;gap:8px}
.form-row{margin-bottom:12px}
.form-row label{display:block;font-size:12.5px;font-weight:700;color:var(--charcoal);margin-bottom:5px}
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.section-lbl{font-size:10.5px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--si-dark);margin-bottom:8px;margin-top:14px}
.section-lbl:first-child{margin-top:0}
.info-pill{border-radius:8px;padding:8px 11px;margin-bottom:10px;font-size:11.5px;font-weight:600;line-height:1.5}
.info-pill.orange{background:var(--si-light);border:1px solid var(--si-border);color:var(--si-dark)}
.info-pill.green{background:var(--si-green-l);border:1px solid var(--si-green-b);color:#14532D}
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.info-pill.red{background:var(--si-red-l);border:1px solid var(--si-red-b);color:var(--si-red)}
.info-pill.blue{background:var(--si-blue-l);border:1px solid var(--si-blue-b);color:var(--si-blue)}
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.wave-btn{padding:10px 6px;border:2px solid var(--border);border-radius:8px;background:var(--white);font-family:'Montserrat',sans-serif;font-size:11px;font-weight:700;color:var(--gray-text);cursor:pointer;transition:all .2s;text-align:center;line-height:1.3}
.wave-btn:hover{border-color:var(--si-dark);color:var(--si-dark)}
.wave-btn.active{background:var(--si-deep);border-color:var(--si-deep);color:var(--white)}
.wave-btn small{display:block;font-size:8.5px;font-weight:500;color:inherit;opacity:.7;margin-top:2px}
.wave-btn.active small{opacity:.8}
.load-group{background:var(--white);border:1.5px solid var(--border);border-radius:10px;margin-bottom:8px;overflow:hidden}
.load-group-hdr{font-family:'Montserrat',sans-serif;font-size:11px;font-weight:800;color:var(--si-dark);padding:7px 10px;background:var(--si-light);border-bottom:1px solid var(--si-border);display:flex;align-items:center;gap:6px}
.load-row{display:grid;grid-template-columns:auto 1fr 68px 56px;gap:5px;align-items:center;padding:6px 10px;border-bottom:1px solid var(--border);transition:background .15s}
.load-row:last-child{border-bottom:none}
.load-row.active{background:rgba(234,88,12,.04)}
.load-chk{width:15px;height:15px;accent-color:var(--si);cursor:pointer;flex-shrink:0}
.load-name{font-size:11.5px;font-weight:600;color:var(--charcoal);cursor:pointer;user-select:none}
.load-name small{color:var(--gray-text);font-weight:400;font-size:10px;display:block}
.load-watts,.load-surge{width:100%;padding:4px 6px;border:1px solid var(--border);border-radius:5px;font-size:11px;background:var(--white);outline:none;color:var(--charcoal)}
.load-watts:focus,.load-surge:focus{border-color:var(--si)}
.load-row.inactive .load-watts,.load-row.inactive .load-surge{opacity:.35;pointer-events:none}
.load-row.inactive .load-name{opacity:.45}
.col-hdrs{display:grid;grid-template-columns:auto 1fr 68px 56px;gap:5px;font-size:9.5px;font-weight:700;color:var(--gray-text);letter-spacing:.4px;text-transform:uppercase;padding:0 10px;margin-bottom:4px}
.si-actions{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}
.btn-calc{flex:2;min-width:130px;padding:13px 16px;background:linear-gradient(135deg,var(--si-deep),var(--si-dark));color:var(--white);border:none;border-radius:9px;font-family:'Montserrat',sans-serif;font-weight:700;font-size:13.5px;cursor:pointer;transition:opacity .2s,transform .15s;display:flex;align-items:center;justify-content:center;gap:7px}
.btn-calc:hover{opacity:.88;transform:translateY(-1px)}
.btn-pdf{flex:1;min-width:100px;padding:13px;background:var(--navy);color:var(--white);border:none;border-radius:9px;font-family:'Montserrat',sans-serif;font-weight:700;font-size:12.5px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:5px}
.btn-pdf:hover{background:var(--navy-mid)}
.btn-wa{flex:1;min-width:100px;padding:13px;background:#25D366;color:var(--white);border:none;border-radius:9px;font-family:'Montserrat',sans-serif;font-weight:700;font-size:12.5px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:5px}
.btn-wa:hover{background:#1ebe5a}
.hidden{display:none !important}
.si-results{padding:28px;background:var(--white);display:flex;flex-direction:column}
.si-results h2{font-family:'Montserrat',sans-serif;font-size:16px;font-weight:800;color:var(--navy);margin-bottom:18px}
.results-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px 20px;color:var(--gray-text)}
.empty-icon{width:64px;height:64px;border-radius:16px;background:var(--bg-light);border:1.5px dashed var(--border);display:flex;align-items:center;justify-content:center;font-size:30px;margin-bottom:14px}
.results-empty p{font-size:13.5px;line-height:1.65;max-width:260px}
.result-hero{background:linear-gradient(135deg,var(--si-deep),var(--si-dark));border-radius:13px;padding:18px 22px;margin-bottom:12px}
.result-hero-label{font-size:10.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:4px}
.result-hero-val{font-family:'Montserrat',sans-serif;font-size:32px;font-weight:900;color:var(--white);line-height:1}
.result-hero-val small{font-size:14px;font-weight:700;color:rgba(255,255,255,.6)}
.result-hero-sub{font-size:11px;color:rgba(255,255,255,.42);margin-top:5px;line-height:1.5}
.results-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:12px}
.result-card{border-radius:11px;padding:12px 14px}
.rc-o{border:1.5px solid rgba(234,88,12,.3);background:var(--si-light)}
.rc-r{border:1.5px solid rgba(220,38,38,.3);background:var(--si-red-l)}
.rc-g{border:1.5px solid rgba(21,128,61,.3);background:var(--si-green-l)}
.rc-b{border:1.5px solid rgba(29,78,216,.3);background:var(--si-blue-l)}
.rc-label{font-size:10px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--gray-text);margin-bottom:3px}
.rc-val{font-family:'Montserrat',sans-serif;font-size:18px;font-weight:900;color:var(--navy);line-height:1.1}
.rc-val small{font-size:11px;font-weight:600;color:var(--gray-text)}
.rc-sub{font-size:10.5px;color:var(--gray-text);margin-top:3px;line-height:1.4}
.detail-box{border:2px solid;border-radius:12px;padding:13px;margin-bottom:12px}
.b-orange{background:var(--si-light);border-color:var(--si-border)}
.b-red{background:var(--si-red-l);border-color:var(--si-red-b)}
.b-green{background:var(--si-green-l);border-color:var(--si-green-b)}
.b-amber{background:var(--si-amber-l);border-color:var(--si-amber-b)}
.b-blue{background:var(--si-blue-l);border-color:var(--si-blue-b)}
.b-teal{background:var(--si-teal-l);border-color:var(--si-teal-b)}
.b-purple{background:var(--si-purple-l);border-color:var(--si-purple-b)}
.detail-box .dt{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:800;margin-bottom:9px}
.b-orange .dt{color:var(--si-dark)}.b-red .dt{color:var(--si-red)}.b-green .dt{color:var(--si-green)}.b-amber .dt{color:var(--si-amber)}.b-blue .dt{color:var(--si-blue)}.b-teal .dt{color:var(--si-teal)}.b-purple .dt{color:var(--si-purple)}
.d-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid rgba(0,0,0,.06)}
.d-row:last-child{border-bottom:none}
.d-row .dl{font-size:12px;color:var(--charcoal);font-weight:600}
.d-row .dv{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:900}
.b-orange .dv{color:var(--si-dark)}.b-red .dv{color:var(--si-red)}.b-green .dv{color:var(--si-green)}.b-amber .dv{color:var(--si-amber)}.b-blue .dv{color:var(--si-blue)}.b-teal .dv{color:var(--si-teal)}.b-purple .dv{color:var(--si-purple)}
.load-breakdown-wrap{background:var(--white);border:1.5px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:12px}
.lbw-title{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:800;color:var(--si-dark);padding:10px 14px;border-bottom:1px solid var(--border);background:var(--si-light)}
.lbw-row{display:flex;align-items:center;gap:10px;padding:7px 14px;border-bottom:1px solid var(--border);font-size:11.5px}
.lbw-row:last-child{border-bottom:none}
.lbw-name{flex:1;font-weight:600;color:var(--charcoal)}
.lbw-bar-wrap{flex:2;height:8px;background:var(--bg-light);border-radius:4px;overflow:hidden}
.lbw-bar{height:100%;border-radius:4px;background:linear-gradient(90deg,var(--si-dark),var(--si));transition:width .4s ease}
.lbw-surge{font-family:'Montserrat',sans-serif;font-size:11px;font-weight:800;color:var(--si-dark);white-space:nowrap;min-width:52px;text-align:right}
.brand-rec-wrap{background:var(--white);border:1.5px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:12px}
.brand-rec-title{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:800;color:var(--si-dark);padding:10px 14px;border-bottom:1px solid var(--border);background:var(--si-light)}
.brand-row{display:flex;align-items:flex-start;gap:12px;padding:10px 14px;border-bottom:1px solid var(--border)}
.brand-row:last-child{border-bottom:none}
.brand-rank{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Montserrat',sans-serif;font-size:11px;font-weight:800;flex-shrink:0;margin-top:1px}
.rank-gold{background:#F59E0B;color:var(--white)}.rank-silver{background:#94A3B8;color:var(--white)}.rank-bronze{background:#B45309;color:var(--white)}
.brand-info{flex:1}
.brand-name{font-family:'Montserrat',sans-serif;font-size:13px;font-weight:800;color:var(--charcoal)}
.brand-model{font-size:11.5px;font-weight:600;color:var(--si-dark);margin-top:2px}
.brand-why{font-size:11px;color:var(--gray-text);margin-top:3px;line-height:1.4}
.chart-wrap{background:var(--white);border:1.5px solid var(--border);border-radius:12px;padding:14px;margin-bottom:12px}
.chart-wrap h3{font-family:'Montserrat',sans-serif;font-size:12px;font-weight:800;color:var(--navy-mid);margin-bottom:8px}
.chart-wrap canvas{max-height:160px;width:100% !important}
.si-article{max-width:760px;margin:52px auto 0;display:block;width:100%}
.si-article h2{font-family:'Montserrat',sans-serif;font-size:clamp(20px,2.5vw,26px);font-weight:800;color:var(--navy);line-height:1.25;margin:44px 0 14px}
.si-article h2:first-child{margin-top:0}
.si-article h3{font-family:'Montserrat',sans-serif;font-size:17px;font-weight:700;color:var(--navy-mid);margin:24px 0 10px}
.si-article p{font-size:15.5px;color:var(--gray-text);line-height:1.82;margin-bottom:14px}
.si-article ul{margin:10px 0 14px 24px}
.si-article li{font-size:15.5px;color:var(--gray-text);line-height:1.78;margin-bottom:6px}
.si-article strong{color:var(--charcoal)}
.si-article a{color:var(--navy);text-decoration:underline;text-underline-offset:2px}
.si-article a:hover{color:var(--si-dark)}
.si-box{background:var(--si-light);border-left:4px solid var(--si);border-radius:0 9px 9px 0;padding:14px 18px;margin:18px 0;font-size:14.5px;color:var(--charcoal);line-height:1.78}
.example-card{background:var(--white);border:1.5px solid var(--border);border-radius:13px;overflow:hidden;margin:18px 0;box-shadow:var(--shadow-sm)}
.example-card-header{padding:14px 18px;display:flex;align-items:center;gap:11px;background:linear-gradient(135deg,var(--si-deep),var(--si-dark))}
.ex-icon{width:36px;height:36px;border-radius:9px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.example-card-header h3{font-family:'Montserrat',sans-serif;font-size:15px;font-weight:800;color:var(--white) !important;margin:0;line-height:1.2}
.example-loc{font-size:11px;color:rgba(255,255,255,.5);margin-top:2px}
.example-body{padding:18px}
.example-desc{font-size:14px;color:var(--gray-text);line-height:1.75;margin-bottom:12px}
.ex-table{width:100%;border-collapse:collapse;font-size:13.5px;margin:10px 0}
.ex-table th{background:var(--bg-light);color:var(--navy-mid);font-weight:700;padding:8px 12px;text-align:left;border:1px solid var(--border)}
.ex-table td{padding:8px 12px;border:1px solid var(--border);color:var(--charcoal)}
.example-result{background:rgba(234,88,12,.07);border:1.5px solid rgba(234,88,12,.25);border-radius:9px;padding:11px 14px;font-size:13.5px;color:var(--si-dark);font-weight:600;margin-top:10px}
.tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0}
.tip-card{background:var(--white);border:1.5px solid var(--border);border-radius:12px;padding:18px 16px;position:relative;transition:box-shadow .2s}
.tip-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--si);border-radius:12px 12px 0 0}
.tip-card:hover{box-shadow:var(--shadow-md)}
.tip-num{width:26px;height:26px;border-radius:50%;background:var(--si-dark);color:var(--white);font-family:'Montserrat',sans-serif;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:9px}
.tip-body h3{font-family:'Montserrat',sans-serif;font-size:14px;font-weight:800;color:var(--si-dark) !important;margin:0 0 7px}
.tip-body p{font-size:13px;color:var(--gray-text);line-height:1.7;margin:0}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}
.faq-item{border:1.5px solid var(--border);border-radius:10px;overflow:hidden}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:13px 16px;cursor:pointer;gap:10px;font-family:'Montserrat',sans-serif;font-size:13px;font-weight:700;color:var(--navy);transition:background .2s;user-select:none}
.faq-q:hover{background:var(--bg-light)}
.faq-q.open{background:var(--si-deep);color:var(--white)}
.faq-icon{width:20px;height:20px;border:2px solid var(--border);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0;transition:all .2s}
.faq-q.open .faq-icon{background:var(--white);border-color:var(--white);color:var(--si-dark)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;font-size:14px;color:var(--gray-text);line-height:1.75;padding:0 16px}
.faq-a.open{max-height:600px;padding:12px 16px 15px}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}
.related-card{background:var(--white);border:1.5px solid var(--border);border-radius:11px;padding:14px 12px;text-align:center;text-decoration:none;transition:all .2s;display:block}
.related-card:hover{border-color:var(--si);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.related-icon{font-size:22px;margin-bottom:7px;display:block}
.related-name{font-family:'Montserrat',sans-serif;font-size:12.5px;font-weight:700;color:var(--navy);line-height:1.3;display:block}
.related-card:hover .related-name{color:var(--si-dark)}
.related-desc{font-size:11px;color:var(--gray-text);margin-top:3px;display:block}
.disclaimer-box{background:var(--bg-light);border:1px solid var(--border);border-radius:10px;padding:24px;margin-top:36px;font-size:13.5px;color:var(--gray-text);line-height:1.75}
.disclaimer-box h2{font-family:'Montserrat',sans-serif;font-size:19px;font-weight:800;color:var(--navy);margin:0 0 12px}
.disclaimer-box a{color:var(--navy);text-decoration:underline}
html,body{width:100% !important;max-width:100% !important;overflow-x:hidden !important;-webkit-text-size-adjust:100%}
.si-wrapper,.si-wrapper *{min-width:0 !important;box-sizing:border-box !important}
.si-wrapper input,.si-wrapper select{font-size:16px}
.chart-wrap canvas{max-width:100% !important;height:auto !important}
@media(max-width:600px){.si-grid{grid-template-columns:1fr !important}.si-inputs{border-right:none;border-bottom:1.5px solid var(--border)}}
@media(max-width:768px){.ex-table{display:block !important;width:100% !important;overflow-x:auto !important}.tips-grid{grid-template-columns:1fr}.faq-grid{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr 1fr}.results-grid{grid-template-columns:1fr 1fr}.wave-sel{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.si-page{padding:20px 14px 56px}.si-hero{padding:28px 18px 36px}.si-inputs,.si-results{padding:20px 14px}.row-2col{grid-template-columns:1fr}.si-actions{display:grid !important;grid-template-columns:1fr 1fr;gap:8px !important}.btn-calc{grid-column:1/-1}.btn-calc,.btn-pdf,.btn-wa{min-width:0 !important;width:100% !important;font-size:12px;padding:12px 8px}}
@media(max-width:480px){.si-hero h1{font-size:21px !important}.result-hero-val{font-size:26px}.results-grid{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr 1fr}}
@media(max-width:400px){.related-grid{grid-template-columns:1fr}}
.si-page{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right))}