#hsp-main.hsp-txhvac{--navy:#0b1f3a;--navy2:#102b50;--red:#a51d2d;--paper:#f6f7f9;--cream:#faf7f1;--ink:#172b41;--muted:#617081;--line:#dce3e9;--white:#fff;--shadow:0 24px 60px rgba(11,31,58,.12)}
#hsp-main.hsp-txhvac, #hsp-main.hsp-txhvac *{box-sizing:border-box}
#hsp-main.hsp-txhvac{scroll-behavior:smooth}
#hsp-main.hsp-txhvac{margin:0;color:var(--ink);background:#fff;font:16px/1.65 'DM Sans',Inter,system-ui,sans-serif}
#hsp-main.hsp-txhvac h1,#hsp-main.hsp-txhvac h2,#hsp-main.hsp-txhvac h3,#hsp-main.hsp-txhvac p{margin-top:0}
#hsp-main.hsp-txhvac h1,#hsp-main.hsp-txhvac h2,#hsp-main.hsp-txhvac h3,#hsp-main.hsp-txhvac strong,#hsp-main.hsp-txhvac b{font-family:Manrope,Inter,system-ui,sans-serif}
#hsp-main.hsp-txhvac h1{font-size:clamp(2.6rem,5vw,5.5rem);letter-spacing:-.065em;line-height:1.08}
#hsp-main.hsp-txhvac h2{font-size:clamp(2rem,3.5vw,3.6rem);letter-spacing:-.055em;line-height:1.15}
#hsp-main.hsp-txhvac h3{letter-spacing:-.035em;line-height:1.24}
#hsp-main.hsp-txhvac a{color:inherit;text-decoration:none}
#hsp-main.hsp-txhvac button{font:inherit;cursor:pointer}
#hsp-main.hsp-txhvac img{display:block;max-width:100%}
#hsp-main.hsp-txhvac :focus-visible{outline:3px solid #f9b22e;outline-offset:4px}
#hsp-main.hsp-txhvac .shell{width:min(1180px,calc(100% - 48px));margin:auto}
#hsp-main.hsp-txhvac .section{padding:105px 0}
#hsp-main.hsp-txhvac .section-tight{padding:55px 0}
#hsp-main.hsp-txhvac .eyebrow{display:inline-block;color:var(--red);font:800 11px/1.3 Manrope,sans-serif;text-transform:uppercase;letter-spacing:.18em}
#hsp-main.hsp-txhvac .eyebrow.light{color:#ffc1c3}
#hsp-main.hsp-txhvac .section-head{max-width:780px;margin-bottom:38px}
#hsp-main.hsp-txhvac .section-head h2{margin:12px 0}
#hsp-main.hsp-txhvac .section-head p{color:var(--muted);font-size:1.08rem;max-width:690px}
#hsp-main.hsp-txhvac .button{display:inline-flex;align-items:center;justify-content:space-between;gap:26px;min-height:52px;padding:13px 21px;border-radius:4px;font-weight:800;font-size:.9rem;transition:transform .2s,box-shadow .2s}
#hsp-main.hsp-txhvac .button:hover,#hsp-main.hsp-txhvac .editorial-card:hover,#hsp-main.hsp-txhvac .symptom:hover{transform:translateY(-3px)}
#hsp-main.hsp-txhvac .button-red{background:var(--red);color:#fff}
#hsp-main.hsp-txhvac .button-navy{background:var(--navy);color:#fff}
#hsp-main.hsp-txhvac .button-ghost{color:#fff;border:1px solid #ffffff86}
#hsp-main.hsp-txhvac .button-outline{color:var(--navy);border:1px solid #aeb9c5}
#hsp-main.hsp-txhvac .text-link{font-weight:800;color:var(--red);border-bottom:2px solid currentColor;padding-bottom:5px;display:inline-block}
#hsp-main.hsp-txhvac .crumb{padding:15px max(24px,calc((100% - 1180px)/2));font-size:11px;letter-spacing:.02em;color:#647386;background:#f8fafb;display:flex;flex-wrap:wrap;gap:8px}
#hsp-main.hsp-txhvac .crumb span+span:before{content:'›';padding-right:8px;color:var(--red)}
#hsp-main.hsp-txhvac .hero{background:var(--navy);color:#fff;overflow:hidden}
#hsp-main.hsp-txhvac .hero-grid{display:grid;grid-template-columns:.96fr 1.04fr;min-height:630px}
#hsp-main.hsp-txhvac .hero-copy{padding:74px 46px 70px 0;position:relative;z-index:2}
#hsp-main.hsp-txhvac .hero-copy h1{margin:17px 0 24px;color:#fff}
#hsp-main.hsp-txhvac .hero-copy>p{color:#cfdae5;font-size:1.17rem;max-width:520px}
#hsp-main.hsp-txhvac .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}
#hsp-main.hsp-txhvac .hero-meta{display:flex;gap:26px;border-top:1px solid #ffffff33;padding-top:22px;margin-top:62px;color:#bfcddd;font-size:11px;letter-spacing:.05em;text-transform:uppercase}
#hsp-main.hsp-txhvac .hero-meta b{font-size:14px;display:block;color:#fff;letter-spacing:.08em}
#hsp-main.hsp-txhvac .hero-visual{position:relative;min-width:0}
#hsp-main.hsp-txhvac .hero-visual:before{content:'';position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,var(--navy) 0%,transparent 23%),linear-gradient(0deg,#07192a88,transparent 30%)}
#hsp-main.hsp-txhvac .hero-visual img{width:100%;height:100%;object-fit:cover;object-position:53% center;position:absolute}
#hsp-main.hsp-txhvac .photo-note{position:absolute;bottom:27px;right:0;z-index:2;font:700 10px Manrope;letter-spacing:.18em;background:var(--red);padding:14px 17px}
#hsp-main.hsp-txhvac .quick-answer{background:var(--cream);border-bottom:1px solid #eee5da}
#hsp-main.hsp-txhvac .quick-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px;align-items:center}
#hsp-main.hsp-txhvac .quick-grid h2{font-size:2.15rem;margin:12px 0 0}
#hsp-main.hsp-txhvac .quick-grid p{font-size:1.12rem;margin:0}
#hsp-main.hsp-txhvac .symptom-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
#hsp-main.hsp-txhvac .symptom{min-height:142px;border:1px solid var(--line);padding:20px;display:flex;align-items:start;gap:14px;transition:.2s;background:white}
#hsp-main.hsp-txhvac .symptom:hover{border-color:var(--red);box-shadow:0 15px 30px #0b1f3a12}
#hsp-main.hsp-txhvac .symptom>span:nth-child(2){font-weight:800;line-height:1.35}
#hsp-main.hsp-txhvac .symptom small{display:block;margin-top:7px;font-size:10px;color:var(--muted);font-weight:700;letter-spacing:.09em;text-transform:uppercase}
#hsp-main.hsp-txhvac .sym-icon{display:grid;place-items:center;flex:none;width:40px;height:40px;background:#fbecee;color:var(--red);font-size:22px;border-radius:50%}
#hsp-main.hsp-txhvac .symptom b{margin-left:auto;color:var(--red)}
#hsp-main.hsp-txhvac .regions{background:#edf2f5;overflow:hidden}
#hsp-main.hsp-txhvac .map-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.75fr);gap:20px;align-items:stretch}
#hsp-main.hsp-txhvac .map-canvas{height:630px;position:relative;background:radial-gradient(circle at 45% 54%,#fff,#dfe8ed);border:1px solid #cedbe3;overflow:hidden}
#hsp-main.hsp-txhvac .map-canvas:after{content:'';position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(#748da310 1px,transparent 1px),linear-gradient(90deg,#748da310 1px,transparent 1px);background-size:32px 32px}
#hsp-main.hsp-txhvac .map-topline{position:absolute;top:18px;left:24px;right:24px;z-index:2;display:flex;justify-content:space-between;text-transform:uppercase;letter-spacing:.13em;font-size:10px;font-weight:800;color:#597080}
#hsp-main.hsp-txhvac .map-compass{color:var(--red)}
#hsp-main.hsp-txhvac .texas-map{height:100%;width:100%;position:relative;z-index:1}
#hsp-main.hsp-txhvac .texas-shape path{fill:#c4d3db;stroke:#7794a6;stroke-width:2}
#hsp-main.hsp-txhvac .map-marker{cursor:pointer;outline:none}
#hsp-main.hsp-txhvac .map-marker .pulse{fill:#a51d2d;fill-opacity:.16;stroke:#a51d2d;stroke-opacity:.5;stroke-width:1}
#hsp-main.hsp-txhvac .map-marker .dot{fill:var(--red);stroke:white;stroke-width:4}
#hsp-main.hsp-txhvac .map-marker text{font:800 22px Manrope,sans-serif;fill:var(--navy);paint-order:stroke;stroke:#f0f5f7;stroke-width:8;stroke-linejoin:round}
#hsp-main.hsp-txhvac .map-marker.active .pulse,#hsp-main.hsp-txhvac .map-marker:hover .pulse,#hsp-main.hsp-txhvac .map-marker:focus .pulse{fill:#a51d2d;fill-opacity:.35;stroke:var(--red);stroke-width:3}
#hsp-main.hsp-txhvac .map-marker:focus .dot{stroke:#f9b22e;stroke-width:7}
#hsp-main.hsp-txhvac .map-caption{position:absolute;bottom:12px;left:20px;z-index:2;font-size:10px;color:#5c7180;background:#eef3f6d9;padding:3px 7px}
#hsp-main.hsp-txhvac .region-info{background:var(--navy);color:white;padding:44px 35px;display:flex;flex-direction:column}
#hsp-main.hsp-txhvac .region-info .eyebrow{color:#f7b3b9;display:flex;justify-content:space-between}
#hsp-main.hsp-txhvac .region-info h3{font-size:clamp(2rem,3vw,3.2rem);margin:37px 0 4px}
#hsp-main.hsp-txhvac .region-place{color:#9ab3c7;font-size:13px;text-transform:uppercase;letter-spacing:.09em}
#hsp-main.hsp-txhvac .region-info>p:nth-of-type(2){font-size:1.05rem;color:#e0eaf1;line-height:1.75}
#hsp-main.hsp-txhvac .focus{border-top:1px solid #ffffff33;margin-top:auto;padding:20px 0}
#hsp-main.hsp-txhvac .focus small{font-size:10px;letter-spacing:.16em;color:#9ab3c7;display:block}
#hsp-main.hsp-txhvac .focus strong{font-size:16px}
#hsp-main.hsp-txhvac .region-info .text-link{color:white;align-self:flex-start}
#hsp-main.hsp-txhvac .region-selector{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;margin-top:13px}
#hsp-main.hsp-txhvac .region-button{border:1px solid #cfdbe3;background:white;color:var(--navy);text-align:left;padding:13px 10px;min-height:75px;font-weight:800;font-size:11px;line-height:1.2}
#hsp-main.hsp-txhvac .region-button small{display:block;color:var(--muted);font-weight:500;margin-top:5px;font-size:10px}
#hsp-main.hsp-txhvac .region-button.active,#hsp-main.hsp-txhvac .region-button:hover{border-color:var(--red);box-shadow:inset 0 4px var(--red)}
#hsp-main.hsp-txhvac .map-credit{font-size:11px;color:#60717e;margin:14px 0 0}
#hsp-main.hsp-txhvac .map-credit a{text-decoration:underline}
#hsp-main.hsp-txhvac .system-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
#hsp-main.hsp-txhvac .system-card{background:var(--paper);padding:26px 28px;min-height:290px;border-top:4px solid var(--navy)}
#hsp-main.hsp-txhvac .system-card h3{font-size:1.25rem;margin:20px 0 8px}
#hsp-main.hsp-txhvac .system-card p{color:#5c6c7e;font-size:14px;line-height:1.6}
#hsp-main.hsp-txhvac .system-drawing{height:82px;display:flex;align-items:center;gap:18px}
#hsp-main.hsp-txhvac .system-drawing i{display:block}
#hsp-main.hsp-txhvac .outdoor{width:62px;height:55px;border:3px solid var(--navy);position:relative;background:repeating-linear-gradient(0deg,transparent 0 7px,#9eb3c3 8px 9px)}
#hsp-main.hsp-txhvac .outdoor:after{content:'◎';position:absolute;font-size:28px;line-height:1;left:15px;top:9px;color:var(--navy);background:var(--paper)}
#hsp-main.hsp-txhvac .line{height:3px;width:65px;background:var(--red);position:relative}
#hsp-main.hsp-txhvac .line:after{content:'➜';position:absolute;right:20px;top:-17px;color:var(--red)}
#hsp-main.hsp-txhvac .two-way:after{content:'⇄';font-size:25px;top:-21px}
#hsp-main.hsp-txhvac .indoor{width:54px;height:75px;border:3px solid var(--navy);background:linear-gradient(#b6c8d3 0 14px,transparent 14px 46px,#b6c8d3 46px 51px,transparent 51px)}
#hsp-main.hsp-txhvac .flame{font-size:43px;color:var(--red)}
#hsp-main.hsp-txhvac .diagram-caption{font-size:11px;color:#758492;margin-top:14px}
#hsp-main.hsp-txhvac .season-section{background:var(--cream)}
#hsp-main.hsp-txhvac .season-grid{display:grid;grid-template-columns:repeat(4,1fr);border-left:1px solid #dfd8ca}
#hsp-main.hsp-txhvac .season-grid>div{padding:25px;border-right:1px solid #dfd8ca}
#hsp-main.hsp-txhvac .season-grid span{font:800 10px Manrope;letter-spacing:.15em;color:var(--red)}
#hsp-main.hsp-txhvac .season-grid h3{font-size:1.3rem;margin:40px 0 10px}
#hsp-main.hsp-txhvac .season-grid p{font-size:14px;color:#59697a}
#hsp-main.hsp-txhvac .card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
#hsp-main.hsp-txhvac .editorial-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}
#hsp-main.hsp-txhvac .editorial-card:hover{box-shadow:var(--shadow)}
#hsp-main.hsp-txhvac .card-photo{height:180px;overflow:hidden;position:relative}
#hsp-main.hsp-txhvac .card-photo img{width:100%;height:100%;object-fit:cover}
#hsp-main.hsp-txhvac .card-body{padding:22px;display:flex;flex:1;flex-direction:column}
#hsp-main.hsp-txhvac .micro{color:var(--red);font:800 10px Manrope;text-transform:uppercase;letter-spacing:.12em}
#hsp-main.hsp-txhvac .card-body h3{font-size:1.18rem;margin:12px 0}
#hsp-main.hsp-txhvac .card-body p{font-size:13px;color:var(--muted);line-height:1.55}
#hsp-main.hsp-txhvac .card-arrow{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--red);font-size:12px;font-weight:800}
#hsp-main.hsp-txhvac .section-action{text-align:center;margin-top:34px}
#hsp-main.hsp-txhvac .explainers-band{background:var(--navy);color:#fff}
#hsp-main.hsp-txhvac .band-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
#hsp-main.hsp-txhvac .band-layout h2{margin:15px 0}
#hsp-main.hsp-txhvac .band-layout p{color:#c9d7e3}
#hsp-main.hsp-txhvac .band-links a{display:grid;grid-template-columns:1fr 25px;gap:6px;padding:22px 0;border-bottom:1px solid #ffffff42}
#hsp-main.hsp-txhvac .band-links a span{grid-column:1/-1;font-size:10px;color:#f7b3b9;text-transform:uppercase;letter-spacing:.15em}
#hsp-main.hsp-txhvac .band-links a strong{font-size:1.2rem}
#hsp-main.hsp-txhvac .band-links a b{color:#f7b3b9}
#hsp-main.hsp-txhvac .help-section{background:#f8fafb}
#hsp-main.hsp-txhvac .help-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}
#hsp-main.hsp-txhvac .help-grid h2{margin:14px 0}
#hsp-main.hsp-txhvac .safety{padding:27px;background:#fff;border-left:4px solid var(--red);box-shadow:0 10px 25px #0b1f3a0b}
#hsp-main.hsp-txhvac .safety span{font:800 11px Manrope;color:var(--red);letter-spacing:.12em;text-transform:uppercase}
#hsp-main.hsp-txhvac .safety p{margin:10px 0 0;font-size:14px}
#hsp-main.hsp-txhvac .faq{max-width:850px}
#hsp-main.hsp-txhvac .faq details{border-bottom:1px solid var(--line);padding:20px 0}
#hsp-main.hsp-txhvac .faq summary{font-weight:800;cursor:pointer;font-family:Manrope}
#hsp-main.hsp-txhvac .faq summary:hover{color:var(--red)}
#hsp-main.hsp-txhvac .faq p{max-width:700px;color:var(--muted);padding:10px 0 0}
#hsp-main.hsp-txhvac .source-strip{background:#edf1f4;padding:24px 0;color:#536477;font-size:12px}
#hsp-main.hsp-txhvac .source-strip .shell{display:grid;grid-template-columns:160px 1fr;gap:25px}
#hsp-main.hsp-txhvac .source-strip p{margin:0}
#hsp-main.hsp-txhvac .collection-hero{background:var(--cream);overflow:hidden}
#hsp-main.hsp-txhvac .collection-layout{display:grid;grid-template-columns:1fr .85fr;gap:65px;min-height:490px;align-items:center}
#hsp-main.hsp-txhvac .collection-layout h1{margin:16px 0}
#hsp-main.hsp-txhvac .collection-layout p{font-size:1.18rem;max-width:575px}
#hsp-main.hsp-txhvac .collection-photo{height:450px;position:relative;align-self:end}
#hsp-main.hsp-txhvac .collection-photo img{height:100%;width:100%;object-fit:cover}
#hsp-main.hsp-txhvac .collection-photo span{position:absolute;bottom:16px;left:-20px;background:var(--red);padding:12px 18px;color:#fff;font:800 10px Manrope;letter-spacing:.16em}
#hsp-main.hsp-txhvac .collection-tools{background:#fff}
#hsp-main.hsp-txhvac .collection-tools h2{margin:10px 0 20px}
#hsp-main.hsp-txhvac .filter-group{display:flex;flex-wrap:wrap;gap:7px}
#hsp-main.hsp-txhvac .filter{border:1px solid #ccd6df;background:#fff;padding:10px 17px;color:var(--navy);font-size:12px;font-weight:800}
#hsp-main.hsp-txhvac .filter.active,#hsp-main.hsp-txhvac .filter:hover{background:var(--navy);color:white}
#hsp-main.hsp-txhvac .collection-tools #filter-count{font-size:12px;color:var(--muted);margin:18px 0}
#hsp-main.hsp-txhvac .directory-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
#hsp-main.hsp-txhvac .directory-row{display:grid;grid-template-columns:94px minmax(0,1fr) 18px;gap:15px;align-items:center;background:#f8fafb;padding:10px;border:1px solid var(--line);min-height:115px}
#hsp-main.hsp-txhvac .directory-row:hover{border-color:var(--red);background:#fff}
#hsp-main.hsp-txhvac .directory-row[hidden]{display:none}
#hsp-main.hsp-txhvac .directory-row img{height:92px;width:94px;object-fit:cover}
#hsp-main.hsp-txhvac .row-text small{display:block;color:var(--red);font-size:10px;text-transform:uppercase;letter-spacing:.12em}
#hsp-main.hsp-txhvac .row-text strong{display:block;font-size:14px;line-height:1.3}
#hsp-main.hsp-txhvac .row-text em{font-size:11px;color:#647688;font-style:normal;display:block;margin-top:4px}
#hsp-main.hsp-txhvac .directory-row b{color:var(--red)}
#hsp-main.hsp-txhvac .next-step{padding:33px 0;background:var(--cream)}
#hsp-main.hsp-txhvac .next-step .shell{display:flex;align-items:center;justify-content:space-between;gap:20px}
#hsp-main.hsp-txhvac .next-step p{margin:0;font-weight:800;font-size:1.2rem}
#hsp-main.hsp-txhvac .article-hero{background:var(--navy);color:#fff;overflow:hidden}
#hsp-main.hsp-txhvac .article-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:55px;min-height:495px}
#hsp-main.hsp-txhvac .article-hero h1{font-size:clamp(2.5rem,4vw,4.8rem);margin:20px 0;color:#fff}
#hsp-main.hsp-txhvac .article-hero p{font-size:1.15rem;color:#ced9e4}
#hsp-main.hsp-txhvac .article-hero img{width:100%;height:430px;object-fit:cover;border-radius:140px 0 0 0}
#hsp-main.hsp-txhvac .article-hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
#hsp-main.hsp-txhvac .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:90px;padding-top:70px;padding-bottom:70px}
#hsp-main.hsp-txhvac .article-main{max-width:730px}
#hsp-main.hsp-txhvac .answer-block{background:#f3f6f8;border-left:4px solid var(--red);padding:26px 32px}
#hsp-main.hsp-txhvac .answer-block p{font-family:Manrope,sans-serif;font-size:1.15rem;font-weight:650;line-height:1.6;margin:13px 0 0}
#hsp-main.hsp-txhvac .article-section{padding-top:65px}
#hsp-main.hsp-txhvac .article-section h2{font-size:2rem;margin:12px 0 20px}
#hsp-main.hsp-txhvac .article-section>p{font-size:1.04rem}
#hsp-main.hsp-txhvac .check-list{list-style:none;padding:0;margin:0}
#hsp-main.hsp-txhvac .check-list li{padding:18px 0;border-bottom:1px solid var(--line);display:flex;gap:20px}
#hsp-main.hsp-txhvac .check-list span{font:800 13px Manrope;color:var(--red)}
#hsp-main.hsp-txhvac .decision-tree{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
#hsp-main.hsp-txhvac .decision-tree>div{background:#f7f9fa;padding:20px;border-top:3px solid var(--red)}
#hsp-main.hsp-txhvac .decision-dot{display:block;width:10px;height:10px;border-radius:50%;background:var(--red);margin-bottom:20px}
#hsp-main.hsp-txhvac .decision-tree h3{font-size:1rem;margin:0 0 10px}
#hsp-main.hsp-txhvac .decision-tree p{font-size:12px;line-height:1.6;margin:0;color:#54677a}
#hsp-main.hsp-txhvac .regional-note{background:var(--cream);margin-top:65px;padding:30px}
#hsp-main.hsp-txhvac .regional-note h2{font-size:1.8rem}
#hsp-main.hsp-txhvac .regional-note p{font-size:14px}
#hsp-main.hsp-txhvac .article-aside{padding-top:20px}
#hsp-main.hsp-txhvac .aside-card{position:sticky;top:95px;border-top:4px solid var(--red);background:var(--paper);padding:25px}
#hsp-main.hsp-txhvac .aside-card a{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:12px;font-weight:800}
#hsp-main.hsp-txhvac .aside-card p{font-size:12px;color:var(--muted);margin-top:24px}
#hsp-main.hsp-txhvac .aside-photo{margin-top:25px;position:relative}
#hsp-main.hsp-txhvac .aside-photo img{width:100%;height:185px;object-fit:cover}
#hsp-main.hsp-txhvac .aside-photo a{display:block;background:var(--navy);color:white;padding:14px;font-size:12px;font-weight:800}
#hsp-main.hsp-txhvac .related{background:#f6f8fa}
#hsp-main.hsp-txhvac .related .card-grid{grid-template-columns:repeat(3,1fr)}
#hsp-main.hsp-txhvac .explain-hero{background:var(--cream)}
#hsp-main.hsp-txhvac .explain-layout{display:grid;grid-template-columns:1fr .8fr;gap:70px;align-items:center;min-height:440px}
#hsp-main.hsp-txhvac .explain-layout h1{font-size:clamp(2.7rem,4vw,4.7rem);margin:16px 0}
#hsp-main.hsp-txhvac .explain-layout img{height:370px;width:100%;object-fit:cover;object-position:center}
#hsp-main.hsp-txhvac .explainer-content{display:grid;grid-template-columns:minmax(0,700px) 240px;justify-content:center;gap:75px;padding-top:75px;padding-bottom:95px}
#hsp-main.hsp-txhvac .explainer-content article>p{font-size:1.05rem;line-height:1.82;margin:28px 0}
#hsp-main.hsp-txhvac .explainer-content aside{padding-top:10px;color:#647386;font-size:13px}
#hsp-main.hsp-txhvac .word-badge{background:var(--navy);color:#fff;padding:24px;min-height:200px;display:flex;flex-direction:column;justify-content:space-between}
#hsp-main.hsp-txhvac .word-badge b{font-size:10px;letter-spacing:.14em;color:#f4b9bd}
#hsp-main.hsp-txhvac .word-badge span{font:800 1.5rem/1.2 Manrope}
#hsp-main.hsp-txhvac .explainer-link{background:var(--cream);padding:24px;margin-top:40px}
#hsp-main.hsp-txhvac .explainer-link span{display:block;font-size:11px;text-transform:uppercase;color:var(--muted);letter-spacing:.12em}
#hsp-main.hsp-txhvac .explainer-link a{color:var(--red);font-weight:800}
@media(max-width:900px){#hsp-main.hsp-txhvac .shell{width:min(100% - 36px,1180px)}
#hsp-main.hsp-txhvac .hero-grid,#hsp-main.hsp-txhvac .map-layout,#hsp-main.hsp-txhvac .collection-layout,#hsp-main.hsp-txhvac .article-hero-grid,#hsp-main.hsp-txhvac .explain-layout{grid-template-columns:1fr}
#hsp-main.hsp-txhvac .hero-grid{min-height:0}
#hsp-main.hsp-txhvac .hero-copy{padding:62px 0 40px}
#hsp-main.hsp-txhvac .hero-visual{height:360px}
#hsp-main.hsp-txhvac .hero-meta{margin-top:35px}
#hsp-main.hsp-txhvac .quick-grid,#hsp-main.hsp-txhvac .help-grid{gap:30px}
#hsp-main.hsp-txhvac .symptom-grid,#hsp-main.hsp-txhvac .card-grid{grid-template-columns:repeat(2,1fr)}
#hsp-main.hsp-txhvac .map-canvas{height:520px}
#hsp-main.hsp-txhvac .region-info{min-height:300px}
#hsp-main.hsp-txhvac .region-selector{grid-template-columns:repeat(4,1fr)}
#hsp-main.hsp-txhvac .system-grid{gap:10px}
#hsp-main.hsp-txhvac .season-grid{grid-template-columns:repeat(2,1fr)}
#hsp-main.hsp-txhvac .band-layout{gap:35px}
#hsp-main.hsp-txhvac .collection-layout{padding-top:55px;gap:20px}
#hsp-main.hsp-txhvac .collection-photo{height:320px}
#hsp-main.hsp-txhvac .directory-grid{grid-template-columns:1fr}
#hsp-main.hsp-txhvac .article-hero-grid{padding-top:50px;gap:25px}
#hsp-main.hsp-txhvac .article-hero img{height:300px}
#hsp-main.hsp-txhvac .article-layout{gap:35px;grid-template-columns:minmax(0,1fr) 210px}
#hsp-main.hsp-txhvac .explain-layout{padding-top:55px;gap:20px}
#hsp-main.hsp-txhvac .explain-layout img{height:310px}
#hsp-main.hsp-txhvac .explainer-content{gap:30px}}
@media(max-width:650px){#hsp-main.hsp-txhvac{font-size:15px}
#hsp-main.hsp-txhvac .shell{width:calc(100% - 32px)}
#hsp-main.hsp-txhvac .section{padding:68px 0}
#hsp-main.hsp-txhvac .section-tight{padding:35px 0}
#hsp-main.hsp-txhvac .crumb{padding:12px 16px;font-size:10px}
#hsp-main.hsp-txhvac .hero-copy{padding:55px 0 30px}
#hsp-main.hsp-txhvac .hero-copy h1{font-size:clamp(2.6rem,11vw,4rem)}
#hsp-main.hsp-txhvac .hero-copy>p{font-size:1.04rem}
#hsp-main.hsp-txhvac .hero-actions{display:flex;flex-direction:column;align-items:stretch}
#hsp-main.hsp-txhvac .button{width:100%}
#hsp-main.hsp-txhvac .hero-visual{height:295px;margin:0 -16px}
#hsp-main.hsp-txhvac .hero-visual:before{background:linear-gradient(0deg,#07192a88,transparent 35%)}
#hsp-main.hsp-txhvac .hero-meta{gap:12px;justify-content:space-between}
#hsp-main.hsp-txhvac .hero-meta span{font-size:9px}
#hsp-main.hsp-txhvac .quick-grid,#hsp-main.hsp-txhvac .help-grid,#hsp-main.hsp-txhvac .band-layout{grid-template-columns:1fr}
#hsp-main.hsp-txhvac .quick-grid h2{font-size:1.8rem}
#hsp-main.hsp-txhvac .quick-grid p{font-size:1rem}
#hsp-main.hsp-txhvac .symptom-grid{grid-template-columns:repeat(2,1fr);gap:8px}
#hsp-main.hsp-txhvac .symptom{padding:12px;min-height:120px;display:block;position:relative;font-size:13px}
#hsp-main.hsp-txhvac .sym-icon{width:32px;height:32px;margin-bottom:10px}
#hsp-main.hsp-txhvac .symptom b{position:absolute;right:12px;top:10px}
#hsp-main.hsp-txhvac .symptom small{font-size:9px}
#hsp-main.hsp-txhvac .map-canvas{height:380px;margin:0 -16px}
#hsp-main.hsp-txhvac .map-marker text{font-size:27px}
#hsp-main.hsp-txhvac .region-info{padding:28px;min-height:335px;margin:0 -16px}
#hsp-main.hsp-txhvac .region-info h3{margin-top:25px}
#hsp-main.hsp-txhvac .region-selector{grid-template-columns:repeat(2,1fr);gap:7px}
#hsp-main.hsp-txhvac .region-button{min-height:65px}
#hsp-main.hsp-txhvac .system-grid,#hsp-main.hsp-txhvac .season-grid,#hsp-main.hsp-txhvac .card-grid,#hsp-main.hsp-txhvac .related .card-grid{grid-template-columns:1fr}
#hsp-main.hsp-txhvac .system-card{min-height:0}
#hsp-main.hsp-txhvac .season-grid{border:0}
#hsp-main.hsp-txhvac .season-grid>div{border:0;border-top:1px solid #dcd6ca;padding:18px 0}
#hsp-main.hsp-txhvac .season-grid h3{margin:15px 0 5px}
#hsp-main.hsp-txhvac .card-photo{height:210px}
#hsp-main.hsp-txhvac .band-links{margin-top:25px}
#hsp-main.hsp-txhvac .source-strip .shell{grid-template-columns:1fr;gap:5px}
#hsp-main.hsp-txhvac .collection-layout{min-height:0}
#hsp-main.hsp-txhvac .collection-photo{height:280px;margin:0 -16px}
#hsp-main.hsp-txhvac .collection-photo span{left:16px}
#hsp-main.hsp-txhvac .directory-row{grid-template-columns:72px minmax(0,1fr) 14px;gap:8px}
#hsp-main.hsp-txhvac .directory-row img{width:72px;height:80px}
#hsp-main.hsp-txhvac .row-text em{display:none}
#hsp-main.hsp-txhvac .filter-group{gap:6px}
#hsp-main.hsp-txhvac .filter{padding:8px 11px}
#hsp-main.hsp-txhvac .next-step .shell{display:block}
#hsp-main.hsp-txhvac .next-step .button{margin-top:15px}
#hsp-main.hsp-txhvac .article-hero-grid{padding-top:50px}
#hsp-main.hsp-txhvac .article-hero h1{font-size:2.65rem}
#hsp-main.hsp-txhvac .article-hero img{margin:0 -16px;width:calc(100% + 32px);height:275px;border-radius:0}
#hsp-main.hsp-txhvac .article-layout{grid-template-columns:1fr;padding-top:35px}
#hsp-main.hsp-txhvac .article-aside{display:none}
#hsp-main.hsp-txhvac .article-section{padding-top:47px}
#hsp-main.hsp-txhvac .decision-tree{grid-template-columns:1fr}
#hsp-main.hsp-txhvac .regional-note{margin-top:50px}
#hsp-main.hsp-txhvac .explain-layout{padding-top:55px}
#hsp-main.hsp-txhvac .explain-layout h1{font-size:2.6rem}
#hsp-main.hsp-txhvac .explain-layout img{height:260px;margin:0 -16px;width:calc(100% + 32px)}
#hsp-main.hsp-txhvac .explainer-content{display:block;padding:45px 0}
#hsp-main.hsp-txhvac .explainer-content aside{display:none}
#hsp-main.hsp-txhvac .answer-block{padding:20px}
#hsp-main.hsp-txhvac .answer-block p{font-size:1rem}}
@media(prefers-reduced-motion:reduce){#hsp-main.hsp-txhvac{scroll-behavior:auto}
#hsp-main.hsp-txhvac, #hsp-main.hsp-txhvac *,#hsp-main.hsp-txhvac *:before,#hsp-main.hsp-txhvac *:after{transition:none!important;animation:none!important}}
#hsp-main.hsp-txhvac .field-diagram{margin:28px 0 32px;background:#0f2b4b;color:#fff;padding:24px}
#hsp-main.hsp-txhvac .field-diagram figcaption h3{font-size:1.25rem;margin:5px 0 18px;color:#fff}
#hsp-main.hsp-txhvac .field-diagram .eyebrow{color:#f3b4b9}
#hsp-main.hsp-txhvac .field-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}
#hsp-main.hsp-txhvac .field-flow>div{min-height:145px;background:#ffffff12;border-top:2px solid #eaa5aa;padding:14px;position:relative}
#hsp-main.hsp-txhvac .field-flow>div:not(:last-child):after{content:'→';position:absolute;right:-12px;top:50%;color:#fff;background:var(--red);height:22px;width:22px;text-align:center;line-height:20px;z-index:1;border-radius:50%}
#hsp-main.hsp-txhvac .field-flow b{display:block;color:#eab0b4;font-size:10px;letter-spacing:.14em}
#hsp-main.hsp-txhvac .field-flow strong{display:block;font-size:15px;margin:18px 0 4px}
#hsp-main.hsp-txhvac .field-flow small{display:block;font-size:11px;line-height:1.35;color:#c4d2df}
#hsp-main.hsp-txhvac .field-diagram>p{font-size:10px;color:#afc1d2;margin:15px 0 0}
@media(max-width:650px){#hsp-main.hsp-txhvac .field-diagram{padding:18px}
#hsp-main.hsp-txhvac .field-flow{grid-template-columns:1fr}
#hsp-main.hsp-txhvac .field-flow>div{min-height:0}
#hsp-main.hsp-txhvac .field-flow strong{margin:7px 0 2px}
#hsp-main.hsp-txhvac .field-flow>div:not(:last-child):after{content:'↓';right:50%;top:auto;bottom:-13px}}
#hsp-main.hsp-txhvac .texas-shape path{stroke:none}
#hsp-main.hsp-txhvac{--navy:#0b1f3a;--navy2:#102b50;--red:#a51d2d;--paper:#f6f7f9;--cream:#faf7f1;--ink:#172b41;--muted:#617081;--line:#dce3e9;--white:#fff;--shadow:0 24px 60px rgba(11,31,58,.12);color:var(--ink);background:white;font:16px/1.65 Inter,system-ui,sans-serif}
#hsp-main.hsp-txhvac img{max-width:100%}#hsp-main.hsp-txhvac .crumb{display:flex;flex-wrap:wrap}#hsp-main.hsp-txhvac .crumb a{color:inherit;text-decoration:underline;text-underline-offset:3px}#hsp-main.hsp-txhvac .article-sources{margin-top:65px;border-top:1px solid var(--line);padding-top:24px;color:#536477;font-size:13px}#hsp-main.hsp-txhvac .article-sources a,#hsp-main.hsp-txhvac .source-strip a{color:var(--red);text-decoration:underline}#hsp-main.hsp-txhvac .map-marker:focus-visible,#hsp-main.hsp-txhvac .region-button:focus-visible{outline:3px solid #a51d2d;outline-offset:4px}#hsp-main.hsp-txhvac .region-button{cursor:pointer}
#hsp-main.hsp-txhvac .txhvac-call-band{background:#0b1f3a;color:#fff;padding:46px 0}
#hsp-main.hsp-txhvac .txhvac-call-band .shell{display:flex;align-items:center;justify-content:space-between;gap:24px}
#hsp-main.hsp-txhvac .txhvac-call-band h2{font-size:clamp(1.5rem,2.4vw,2.5rem);margin:9px 0}
#hsp-main.hsp-txhvac .txhvac-call-band p{color:#d2dfeb;max-width:670px;margin:0}
#hsp-main.hsp-txhvac .txhvac-call-button{flex:none;background:#a51d2d;color:#fff;padding:15px 22px;font-weight:800;text-decoration:none;border-radius:4px}

/* The base theme gives all headings navy text. Keep headings legible on the
   dark Texas HVAC panels across the hub and every problem guide. */
#hsp-main.hsp-txhvac .hero h1,
#hsp-main.hsp-txhvac .article-hero h1,
#hsp-main.hsp-txhvac .explainers-band h2,
#hsp-main.hsp-txhvac .region-info h3,
#hsp-main.hsp-txhvac .field-diagram figcaption h3,
#hsp-main.hsp-txhvac .field-flow strong,
#hsp-main.hsp-txhvac .txhvac-call-band h2{color:#fff}
#hsp-main.hsp-txhvac .field-flow small{color:#e0eaf3}
#hsp-main.hsp-txhvac .field-diagram>p{color:#d5e1ec}
#hsp-main.hsp-txhvac a.button-red,
#hsp-main.hsp-txhvac a.button-navy,
#hsp-main.hsp-txhvac a.button-ghost,
#hsp-main.hsp-txhvac a.txhvac-call-button{color:#fff}
#hsp-main.hsp-txhvac a.button-outline{color:var(--navy)}
#hsp-main.hsp-txhvac .explainers-band a,
#hsp-main.hsp-txhvac .region-info a{color:#fff}
@media(max-width:650px){
  #hsp-main.hsp-txhvac .txhvac-call-band .shell{display:block}
  #hsp-main.hsp-txhvac .txhvac-call-band .txhvac-call-button{display:inline-flex;margin-top:20px}
}
#hsp-main.hsp-txhvac .txhvac-call-button:hover,#hsp-main.hsp-txhvac .txhvac-call-button:focus-visible{background:#c42b3d}
@media(max-width:650px){#hsp-main.hsp-txhvac .txhvac-call-band .shell{display:block}#hsp-main.hsp-txhvac .txhvac-call-button{display:block;text-align:center;margin-top:22px}}