*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,#4338ca,#581c87);min-height:100vh;padding:0;color:#1f2937}.container{max-width:1200px;margin:0 auto;padding:1.25rem 1.25rem 2rem}.header{text-align:center;color:#fff;margin-bottom:1.5rem;animation:fadeIn .6s ease-out}.header h1{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;margin-bottom:.5rem;letter-spacing:-.02em}.header p{font-size:clamp(.95rem,2vw,1.1rem);opacity:.95}.header-subline{margin-top:.35rem;font-size:.9rem;opacity:.85}.calc-grid{display:grid;gap:1.25rem;animation:slideUp .6s ease-out .1s both}@media (min-width: 900px){.calc-grid{grid-template-columns:minmax(0,2fr) minmax(0,1fr);align-items:flex-start}}.calc-card{background:#fff;border-radius:16px;padding:clamp(1.25rem,3vw,2rem);box-shadow:0 4px 6px #00000012,0 10px 25px #00000014}.inputs{width:100%;min-width:0}.summary-card{position:sticky;top:1rem;align-self:flex-start;background:#020617;color:#f9fafb;border-radius:16px;box-shadow:0 18px 40px #0f172a99;padding:1.5rem 1.5rem 1.25rem;min-width:0}.summary-card p{margin:.25rem 0}@media (max-width: 899px){.summary-card{order:1;position:relative;top:0;margin-bottom:1.5rem}.inputs{order:2}}.section{margin-bottom:2rem}.section:last-child{margin-bottom:0}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:2px solid #f3f4f6}.section-title{font-size:1.1rem;font-weight:700;color:#111827;display:flex;align-items:center;gap:.5rem}.section-step{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:#4b5563;font-weight:600}.section-actions{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}@media (max-width: 639px){#ac-section .section-header{align-items:stretch;flex-direction:column;gap:.75rem}#ac-section .section-actions{align-items:stretch;flex-direction:column}}label{display:block;font-weight:600;color:#374151;margin-bottom:.5rem;font-size:.95rem}.label-row{display:flex;align-items:center;gap:.35rem}input,select{width:100%;padding:.75rem 1rem;border:2px solid #6b7280;border-radius:10px;font-size:1rem;background:#fff;transition:all .2s;font-family:inherit;min-height:44px}input:focus-visible,select:focus-visible{outline:none;border-color:#4338ca;box-shadow:0 0 0 3px #4338ca47}input:hover,select:hover{border-color:#4b5563}.input-hint{display:block;font-size:.85rem;color:#6b7280;margin-top:.35rem;line-height:1.4}.form-group{margin-bottom:1.25rem}.form-row{display:grid;gap:1rem;grid-template-columns:1fr}@media (min-width: 640px){.form-row{grid-template-columns:1fr 1fr}}button{font-family:inherit;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;border:none}.btn-primary{background:linear-gradient(135deg,#4338ca,#581c87);color:#fff;padding:.65rem 1.25rem;border-radius:10px;box-shadow:0 2px 8px #667eea4d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:#fff;color:#4338ca;padding:.5rem 1rem;border:2px solid #4338ca;border-radius:8px}.btn-secondary:hover{background:#f0f4ff}.btn-text{background:transparent;color:#4338ca;padding:.5rem;font-weight:600}.btn-text:hover{color:#312e81;text-decoration:underline}.btn-remove{background:#fef2f2;color:#991b1b;padding:.5rem .75rem;border-radius:8px;min-width:2.5rem}.btn-remove:hover{background:#fee2e2}.help-icon{position:relative;display:inline-flex;align-items:center;justify-content:center;width:1.15rem;height:1.15rem;border-radius:50%;border:1px solid #6b7280;font-size:.75rem;color:#4b5563;cursor:help;background:#f9fafb}.help-icon:after{content:attr(data-tooltip);position:absolute;left:50%;top:130%;transform:translate(-50%) translateY(4px);background:#111827;color:#f9fafb;padding:.5rem .75rem;border-radius:.5rem;font-size:.75rem;line-height:1.35;white-space:normal;width:max-content;max-width:16rem;box-shadow:0 10px 25px #0f172a73;opacity:0;pointer-events:none;transition:opacity .15s ease,transform .15s ease;z-index:40}.help-icon:before{content:"";position:absolute;left:50%;top:122%;transform:translate(-50%);border-width:6px;border-style:solid;border-color:#111827 transparent transparent transparent;opacity:0;transition:opacity .15s ease;z-index:39}.help-icon:hover:after,.help-icon:hover:before,.help-icon:focus-visible:after,.help-icon:focus-visible:before{opacity:1;transform:translate(-50%) translateY(2px)}.collapsible-header{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:#f9fafb;border-radius:10px;cursor:pointer;transition:background .2s;margin-bottom:.5rem}.collapsible-header:hover{background:#f3f4f6}.collapsible-content{overflow:hidden;max-height:0;transition:max-height .3s ease}.collapsible-content.open{max-height:5000px}.toggle-icon{transition:transform .3s;font-weight:700;color:#4338ca}.toggle-icon.open{transform:rotate(180deg)}.appliance-grid{display:grid;gap:.75rem;margin-top:1rem}@media (min-width: 640px){.appliance-grid{grid-template-columns:1fr 1fr}}.appliance-row{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:#f9fafb;border-radius:10px;border:2px solid transparent;transition:all .2s}.appliance-row input[type=checkbox]{width:1.25rem;height:1.25rem;cursor:pointer;flex-shrink:0}.appliance-row input[type=number],.watt-input{width:11ch;max-width:100%;box-sizing:border-box;padding:.4rem .5rem;text-align:right;font-size:.9rem;border-radius:8px;border:1px solid #6b7280;min-height:34px}.appliance-row .name{flex:1;font-size:.95rem;color:#374151}.appliance-row.has-help{flex-wrap:wrap}.appliance-help{flex-basis:100%;margin-left:2rem;color:#4b5563;font-size:.78rem;line-height:1.45}.appliance-row:hover{border-color:#667eea;background:#eff6ff}.appliance-row.is-disabled{opacity:.55;background:#f3f4f6}.appliance-row.is-disabled:hover{border-color:transparent;background:#f3f4f6}.appliance-row.is-disabled input[type=checkbox]{cursor:not-allowed}.dynamic-row{display:grid;gap:.75rem;padding:1rem;background:#f9fafb;border-radius:10px;border:2px solid #9ca3af;margin-bottom:.75rem}@media (min-width: 640px){.dynamic-row{grid-template-columns:1fr 1fr auto;align-items:end}}.ac-row{grid-template-columns:minmax(0,1fr)}.ac-planning-value{align-self:center;color:#374151;font-weight:650}.outdoor-card-title{grid-column:1 / -1;margin:0;color:#111827;font-size:1rem;font-weight:750}.estimate-status{display:block;margin:.25rem 0 1rem;color:#374151}@media (min-width: 640px){.ac-row{grid-template-columns:minmax(8rem,1fr) minmax(8rem,1fr) minmax(8rem,1fr) auto}.ac-row input[type=number]{width:100%;min-width:9ch}}.summary-title{font-size:1.1rem;font-weight:600;opacity:.9;margin-bottom:1rem;text-transform:uppercase;letter-spacing:.05em}.summary-result{font-size:clamp(1.15rem,2.5vw,1.55rem);font-weight:700;margin-bottom:.75rem;line-height:1.2;color:#fbbf24}.summary-copy{font-size:.85rem;line-height:1.4;opacity:.9;margin-bottom:1.25rem}.summary-details{display:grid;gap:1rem}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background:#ffffff1a;border-radius:8px}.detail-label{font-size:.9rem;opacity:.85;display:flex;align-items:center;gap:.25rem}.detail-value{font-weight:700;font-size:1.1rem}.alert{padding:1rem;border-radius:10px;margin-top:1rem;font-size:.9rem;line-height:1.5}.alert-warning{background:#fef3c7;color:#92400e;border-left:4px solid #f59e0b}.alert-info{background:#ffffff1a;color:#ffffffe6;border-left:4px solid rgba(255,255,255,.3)}.divider{height:2px;background:linear-gradient(90deg,transparent,#e5e7eb,transparent);margin:2rem 0}.disclaimer{text-align:center;color:#fffc;font-size:.9rem;margin-top:2rem;padding:1rem;background:#ffffff1a;border-radius:12px}.flow-steps{display:flex;justify-content:center;gap:.5rem;margin:2rem 0 1rem}.flow-steps button{width:2.25rem;height:2.25rem;border-radius:999px;border:none;font-weight:600;font-size:.9rem;background:#e5e7eb;color:#111827;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}button:focus-visible,.help-icon:focus-visible,.flow-steps button:focus-visible{outline:3px solid #111827;outline-offset:3px;box-shadow:0 0 0 6px #facc15}.field-error{display:block;margin-top:.4rem;color:#991b1b;font-size:.85rem;font-weight:700;line-height:1.4}:is(input,select)[aria-invalid=true]{border-color:#b91c1c;background:#fff7f7;box-shadow:0 0 0 2px #b91c1c2e}.calc-error-summary{margin-bottom:1rem;padding:.85rem 1rem;color:#7f1d1d;background:#fef2f2;border:2px solid #b91c1c;border-radius:10px;font-weight:700;line-height:1.45}.data-status{margin-bottom:1rem;padding:.75rem .85rem;color:#78350f;background:#fffbeb;border:1px solid #d97706;border-radius:8px;font-size:.9rem;line-height:1.45}.control-review-note{display:block;margin-top:.35rem;color:#7c2d12;font-size:.85rem;font-weight:600;line-height:1.4}.flow-steps button:hover{background:#c7d2fe;box-shadow:0 4px 10px #6366f14d;transform:translateY(-1px)}.how-to-use{background:#fff;border-radius:16px;padding:1.5rem;margin-top:2rem;box-shadow:0 4px 6px #00000012,0 10px 25px #00000014;animation:slideUp .6s ease-out .2s both}.how-to-use h2{font-size:1.5rem;margin-bottom:1rem;color:#111827;display:flex;align-items:center;gap:.5rem}.how-to-use h2:before{content:"💡";font-size:1.75rem}.steps{display:grid;gap:1rem;margin-top:1rem}.step{display:flex;gap:1rem;padding:1rem;background:#f9fafb;border-radius:12px;border-left:4px solid #667eea;transition:background .15s ease;animation:slideUp .45s ease-out both}.step:nth-child(1){animation-delay:.05s}.step:nth-child(2){animation-delay:.1s}.step:nth-child(3){animation-delay:.15s}.step:nth-child(4){animation-delay:.2s}.step:nth-child(5){animation-delay:.25s}.step:hover{background:#f3f4f6}.step-number{flex-shrink:0;width:1.5rem;height:1.5rem;background:#e5e7eb;color:#4b5563;border-radius:999px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.8rem;border:none;cursor:default}.step-content h3{font-size:1rem;margin-bottom:.25rem;color:#111827}.step-content p{font-size:.9rem;color:#6b7280;line-height:1.5}.appliance-tag-guide{background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:12px;padding:1.25rem;margin-top:1rem;border:2px dashed #f59e0b}.appliance-tag-guide h3{font-size:1.1rem;color:#92400e;margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}.appliance-tag-guide h3:before{content:"📋"}.tag-tips{display:grid;gap:.5rem;font-size:.9rem;color:#78350f}.tag-tip{display:flex;align-items:start;gap:.5rem}.tag-tip:before{content:"→";color:#f59e0b;font-weight:700;flex-shrink:0}.mini-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.75rem;margin-top:1rem}.mini-card{background:#fff;border:2px solid #e5e7eb;border-radius:10px;padding:.75rem;text-align:center}.mini-label{font-size:.75rem;color:#6b7280;margin-bottom:.25rem;text-transform:uppercase;letter-spacing:.05em}.mini-value,.mini-val{font-size:1.25rem;font-weight:700;color:#111827}.nec-grid{display:grid;gap:1rem;margin:1rem 0}@media (min-width: 640px){.nec-grid{grid-template-columns:2fr 1fr}}.nec-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:#f9fafb;border-radius:10px}.nec-item label{margin:0;flex:1}.nec-item input{width:7ch;text-align:right}.section-highlight{box-shadow:0 0 0 3px #667eea66;border-radius:16px;transition:box-shadow .4s ease-out}@media (max-width: 640px){.calc-grid{grid-template-columns:1fr}}@media (max-width: 480px){.container{padding-inline:0}.calc-card,.summary-card{width:100%;min-width:0;padding:1rem}.section-header,.section-actions,.detail-row{flex-wrap:wrap}.section-header,.detail-row{gap:.65rem}.section-actions{width:100%}.section-actions button{flex:1 1 9rem}.detail-label{min-width:0}.summary-result,.summary-copy,.alert{overflow-wrap:anywhere}.help-icon:after{left:auto;right:0;width:min(16rem,calc(100vw - 2rem));transform:translateY(4px)}.help-icon:hover:after,.help-icon:focus-visible:after{transform:translateY(2px)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition:none!important}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.home-purchase-intent-shell[data-astro-cid-j7pv25f6]{max-width:1200px;padding:0 1.5rem 1rem;margin:0 auto}@media (max-width: 640px){.home-purchase-intent-shell[data-astro-cid-j7pv25f6]{padding-inline:.75rem}}