/* Heat Air News. Red = heat, blue = air. */
:root {
  --red: #D52B1E;
  --red-dark: #A81F15;
  --blue: #0A5BB5;
  --blue-dark: #073F80;
  --ink: #10213A;
  --ink-2: #13294A;
  --text: #1c2430;
  --muted: #5d6878;
  --rule: #e3e7ed;
  --tint: #f4f7fb;
  --tint-red: #fdf3f2;
  --bg: #ffffff;
  --maxw: 1200px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: 'Barlow', Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.5; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--blue); }
img { max-width: 100%; display: block; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Leaderboard */
.leader-wrap { background: #f3f5f8; border-bottom: 1px solid var(--rule); padding: 18px 16px; }
.leader { max-width: 970px; margin: 0 auto; min-height: 110px; display: flex; align-items: center; gap: 28px; padding: 18px 26px;
  background: linear-gradient(100deg, var(--ink) 0%, var(--blue-dark) 55%, var(--red-dark) 100%); color: #fff; border-left: 6px solid var(--red); }
.leader .lab { font-size: 10px; font-weight: 800; letter-spacing: 1.6px; text-transform: uppercase; background: var(--red); padding: 3px 8px; display: inline-block; margin-bottom: 6px; }
.leader .ev { font-family: 'Barlow Condensed', Arial, sans-serif; font-weight: 800; font-size: 30px; line-height: 1; }
.leader .ev small { display: block; font-family: 'Barlow', Arial, sans-serif; font-size: 12px; font-weight: 600; letter-spacing: 1px; opacity: .85; margin-top: 6px; }
.leader .msg { flex: 1; border-left: 1px solid rgba(255,255,255,.25); padding-left: 24px; font-weight: 700; font-size: 18px; line-height: 1.25; }
.leader .msg span { display: block; font-weight: 500; font-size: 12px; opacity: .8; margin-top: 6px; letter-spacing: .5px; }
.btn { display: inline-block; font-weight: 800; font-size: 12px; letter-spacing: 1.2px; text-transform: uppercase; padding: 12px 18px; }
.btn-white { background: #fff; color: var(--red); }
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: var(--red-dark); color: #fff; }

/* Utility + header */
.utility-bar { border-bottom: 1px solid var(--rule); font-size: 12px; font-weight: 700; }
.utility-bar .inner { max-width: var(--maxw); margin: 0 auto; padding: 7px 24px; display: flex; justify-content: flex-end; gap: 22px; }
.site-header { max-width: var(--maxw); margin: 0 auto; padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo .mark { width: 74px; height: 74px; flex: none; }
.wordmark { line-height: .88; }
.wm-hvac { font-family: 'Barlow Condensed', Arial, sans-serif; font-weight: 900; font-size: 64px; letter-spacing: -.5px; }
.wm-upd { font-family: 'Barlow Condensed', Arial, sans-serif; font-weight: 600; font-size: 64px; letter-spacing: -.5px; color: var(--ink); margin-left: 10px; }
.r { color: var(--red); } .b { color: var(--blue); }
.wordmark .sub { display: block; font-size: 10.5px; font-weight: 700; letter-spacing: 2.6px; color: var(--ink); margin-top: 7px; }
.header-search input { width: 230px; padding: 10px 12px; border: 1px solid #cfd6df; font: inherit; font-size: 13px; }

nav.primary { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
nav.primary .inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
nav.primary a { font-weight: 800; font-size: 14px; letter-spacing: .6px; text-transform: uppercase; padding: 15px 9px 13px; border-bottom: 3px solid transparent; white-space: nowrap; color: var(--ink); }
nav.primary a.on { color: var(--red); border-bottom-color: var(--red); }
nav.primary a:hover { color: var(--blue); border-bottom-color: var(--blue); }

/* Kickers */
.kicker { font-size: 11px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; color: var(--red); }
.kicker.c { color: var(--blue); }

/* Hero row */
.hero-row { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr); gap: 32px; padding-top: 26px; }
.art { position: relative; overflow: hidden; background: var(--ink); }
.art img { width: 100%; height: 100%; object-fit: cover; }
.hero-img { aspect-ratio: 16 / 6.2; }
.hero-headline { font-size: 30px; line-height: 1.18; margin: 18px 0 10px; color: var(--ink); }
.hero-dek { font-size: 19px; line-height: 1.5; color: #3b4555; margin: 0 0 14px; padding-bottom: 16px; border-bottom: 1px solid var(--rule); }
.hero-excerpt { font-size: 16px; line-height: 1.75; color: #3b4555; }
.more { font-size: 12px; font-weight: 800; letter-spacing: 1px; color: var(--red); text-transform: uppercase; }
.byline { font-size: 12px; color: var(--muted); margin-top: 10px; }
.byline b { color: var(--text); }

.side-h { font-family: 'Barlow', Arial, sans-serif; font-weight: 900; font-size: 32px; line-height: 1; margin: 0 0 6px; padding-bottom: 10px; display: inline-block; border-bottom: 4px solid var(--red); color: var(--ink); }
.breaking { list-style: none; margin: 10px 0 0; padding: 0; }
.breaking li { padding: 13px 0; border-bottom: 1px solid var(--rule); }
.breaking li a { display: block; font-weight: 700; font-size: 16px; line-height: 1.3; margin-top: 4px; color: var(--ink); }
.breaking li.native { background: var(--tint-red); border-left: 3px solid var(--red); padding: 12px 14px; }

/* Newsletter strip */
.nl-strip { margin: 34px 0; display: flex; align-items: center; gap: 24px; justify-content: space-between; background: var(--tint); border-left: 5px solid var(--blue); padding: 22px 26px; }
.nl-strip h3 { margin: 0 0 4px; font-size: 20px; color: var(--ink); text-transform: uppercase; letter-spacing: .5px; }
.nl-strip p { margin: 0; font-size: 13px; color: var(--muted); }
.nl-strip form { display: flex; }
.nl-strip input { width: 240px; padding: 11px 12px; border: 1px solid #cfd6df; font: inherit; font-size: 13px; }

/* Section tags */
.section-head { display: flex; justify-content: space-between; align-items: center; margin: 46px 0 16px; }
.tag { background: var(--red); color: #fff; font-size: 11px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; padding: 6px 12px; }
.tag.c { background: var(--blue); }
.view-all { font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }

/* Featured + spotlight */
.mag-row { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr); gap: 32px; }
.feat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.card .art { aspect-ratio: 16 / 10; }
.card .flag { position: absolute; left: 10px; bottom: 10px; background: var(--red); color: #fff; font-size: 10px; font-weight: 800; letter-spacing: 1.2px; padding: 4px 8px; text-transform: uppercase; }
.card .flag.c { background: var(--blue); }
.card h3 { font-size: 17px; line-height: 1.25; margin: 12px 0 8px; text-transform: uppercase; color: var(--ink); }
.card p { font-size: 13.5px; color: #3b4555; margin: 0; line-height: 1.55; }
.spotlight h2 { text-align: center; font-weight: 900; font-size: 22px; letter-spacing: .5px; margin: 0 0 10px; padding-bottom: 8px; border-bottom: 3px solid var(--blue); color: var(--ink); }
.spot-box { background: linear-gradient(180deg, #eef4fc, #fff); border: 1px solid #d7e4f5; padding: 22px; }
.spot-box .parts { font-size: 11px; font-weight: 800; letter-spacing: 1.2px; color: var(--blue); text-transform: uppercase; }
.spot-box h4 { font-size: 24px; color: var(--blue-dark); margin: 10px 0 6px; text-align: center; }
.spot-box .sd { text-align: center; color: var(--muted); font-size: 13px; margin: 0 0 14px; padding-bottom: 14px; border-bottom: 1px solid #d7e4f5; }
.spot-box ol { margin: 0; padding-left: 18px; font-size: 14px; font-weight: 700; color: var(--ink); }
.spot-box ol li { margin-bottom: 9px; }
.spot-box ol li span { display: block; font-weight: 500; color: var(--muted); font-size: 12px; }

/* Event banner */
.event-band { margin: 44px 0 0; display: flex; align-items: center; gap: 26px; padding: 24px 28px; color: #fff;
  background: linear-gradient(100deg, var(--red-dark), var(--ink) 55%, var(--blue-dark)); border-left: 6px solid var(--blue); }
.event-band .when { font-family: 'Barlow Condensed', Arial, sans-serif; font-size: 40px; font-weight: 900; line-height: .95; text-align: center; min-width: 110px; }
.event-band .when small { display: block; font-size: 13px; letter-spacing: 1.4px; font-weight: 700; }
.event-band h3 { margin: 0 0 4px; font-size: 22px; }
.event-band p { margin: 0; font-size: 13px; opacity: .85; }

/* Category bands */
.cat-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.cat-col h4 { margin: 0 0 12px; font-size: 13px; font-weight: 900; letter-spacing: 1.4px; text-transform: uppercase; padding-bottom: 8px; border-bottom: 3px solid var(--ink); }
.cat-col .art { aspect-ratio: 16 / 9; margin-bottom: 10px; }
.cat-col a.lead { font-weight: 800; font-size: 17px; line-height: 1.25; color: var(--ink); display: block; }
.cat-col ul { list-style: none; padding: 0; margin: 10px 0 0; }
.cat-col ul li { padding: 9px 0; border-top: 1px solid var(--rule); font-weight: 600; font-size: 14px; line-height: 1.35; }

/* Podcast + partner */
.pod-row { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr); gap: 32px; }
.pod-card { display: grid; grid-template-columns: 1fr 1fr; background: var(--tint); }
.pod-card .art { aspect-ratio: 1 / 1; }
.pod-card .pt { padding: 30px; display: flex; flex-direction: column; justify-content: center; }
.pod-card .pt .show { font-size: 11px; font-weight: 800; letter-spacing: 1.6px; color: var(--red); text-transform: uppercase; }
.pod-card .pt h3 { font-size: 30px; line-height: 1.1; color: var(--blue-dark); margin: 12px 0; }
.pod-card .pt p { margin: 0; font-size: 14px; color: var(--muted); }
.partner .item { margin-bottom: 18px; }
.partner .art { aspect-ratio: 16 / 8; margin-bottom: 8px; }
.partner a.t { font-weight: 800; font-size: 15px; line-height: 1.3; color: var(--ink); }

/* Data strip */
.data-strip { margin-top: 46px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--rule); }
.data-strip div { padding: 20px 22px; border-right: 1px solid var(--rule); }
.data-strip div:last-child { border-right: 0; }
.data-strip .n { font-family: 'Barlow Condensed', Arial, sans-serif; font-weight: 900; font-size: 38px; line-height: 1; color: var(--ink); }
.data-strip .n.r { color: var(--red); } .data-strip .n.b { color: var(--blue); }
.data-strip .l { font-size: 12.5px; color: var(--muted); margin-top: 6px; line-height: 1.4; }

/* Latest */
.latest-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.latest-grid .art { aspect-ratio: 16 / 10; margin-bottom: 10px; }
.latest-grid a.t { font-weight: 800; font-size: 15px; line-height: 1.3; display: block; margin-top: 4px; color: var(--ink); }
.latest-grid .d { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* Footer */
footer { margin-top: 60px; background: var(--ink); color: #c9d3e1; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 46px 24px 24px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; }
footer .wm-upd { color: #fff; }
footer .wordmark .sub { color: #c9d3e1; }
footer .about { font-size: 13.5px; line-height: 1.6; margin-top: 16px; max-width: 360px; }
footer h5 { color: #fff; font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; margin: 6px 0 12px; }
footer ul { list-style: none; margin: 0; padding: 0; font-size: 13.5px; }
footer li { margin-bottom: 8px; }
footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 34px; padding-top: 18px; font-size: 12px; }
.sister { font-size: 12px; margin-top: 14px; }


/* Article page */
.article-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; padding-top: 30px; }
.article h1 { font-size: 38px; line-height: 1.15; color: var(--ink); margin: 10px 0 12px; }
.article .dek { font-size: 20px; color: #3b4555; line-height: 1.5; margin: 0 0 16px; }
.article .art { aspect-ratio: 16 / 8; margin: 20px 0 24px; }
.article .body { font-size: 17.5px; line-height: 1.8; }
.article .body h2 { font-size: 23px; color: var(--ink); margin: 34px 0 10px; padding-left: 12px; border-left: 4px solid var(--red); }
.box-key { background: #eef4fc; border: 1px solid #cfe0f5; border-left: 5px solid var(--blue); padding: 16px 20px; margin: 20px 0; font-size: 16px; }
.box-key b.h { display: block; font-size: 12px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--blue); margin-bottom: 6px; }
.box-glance { background: var(--tint); padding: 16px 22px; margin: 24px 0; font-size: 15px; }
.box-glance ul { margin: 6px 0 0; padding-left: 18px; }
.why { background: var(--tint-red); border-left: 5px solid var(--red); padding: 16px 20px; margin-top: 30px; }
.why h2 { border: 0 !important; padding: 0 !important; margin-top: 0 !important; }
.sources { font-size: 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.tags span { font-size: 12px; font-weight: 700; background: var(--tint); padding: 5px 10px; }
.tags span.cat { background: var(--blue); color: #fff; }
.rail .box { border: 1px solid var(--rule); padding: 18px; margin-bottom: 22px; }
.rail .box h4 { margin: 0 0 10px; font-size: 13px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--red); }
.rail .box ul { margin: 0; padding: 0; list-style: none; font-size: 14px; font-weight: 700; }
.rail .box li { padding: 8px 0; border-top: 1px solid var(--rule); }
.ad300 { width: 300px; height: 250px; background: linear-gradient(160deg, var(--blue-dark), var(--ink)); color: #fff; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 20px; font-weight: 800; }
.ad300 small { font-weight: 500; opacity: .8; margin-top: 6px; }

@media (max-width: 900px) {
  .hero-row, .mag-row, .pod-row, .article-wrap { grid-template-columns: 1fr; }
  .cat-cols { grid-template-columns: 1fr 1fr; }
  .latest-grid, .data-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .data-strip div:nth-child(2) { border-right: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .header-search { display: none; }
}
@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .leader { flex-direction: column; align-items: flex-start; gap: 12px; }
  .leader .msg { border-left: 0; padding-left: 0; }
  .site-header { padding: 16px; }
  .logo .mark { width: 50px; height: 50px; }
  .wm-hvac, .wm-upd { font-size: 40px; }
  .wm-upd { margin-left: 6px; }
  .wordmark .sub { font-size: 7.5px; letter-spacing: 1.5px; }
  .hero-headline { font-size: 24px; }
  .hero-dek { font-size: 17px; }
  .feat-grid, .cat-cols, .latest-grid, .pod-card, .footer-top { grid-template-columns: 1fr; }
  .nl-strip, .event-band { flex-direction: column; align-items: flex-start; }
  .nl-strip input { width: 100%; }
  .nl-strip form { width: 100%; }
  .article h1 { font-size: 28px; }
  .rail { display: none; }
}

/* Events calendar */
.events-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
.ev-col h4 { margin: 0 0 6px; font-size: 13px; font-weight: 900; letter-spacing: 1.4px; text-transform: uppercase; padding-bottom: 8px; border-bottom: 3px solid var(--ink); }
.ev-col:last-child h4 { border-color: var(--red); }
.ev-col ul { list-style: none; margin: 0; padding: 0; }
.ev-col li { display: grid; grid-template-columns: 130px 1fr; column-gap: 14px; padding: 11px 0; border-bottom: 1px solid var(--rule); }
.ev-col li .d { grid-row: span 2; font-size: 12px; font-weight: 800; color: var(--blue); letter-spacing: .5px; text-transform: uppercase; padding-top: 2px; }
.ev-col li b { font-size: 15px; color: var(--ink); }
.ev-col li .w { font-size: 12.5px; color: var(--muted); }
.ev-col li.slot { background: var(--tint-red); border-left: 3px solid var(--red); padding-left: 12px; }
.ev-col li.slot .d { color: var(--red); }
@media (max-width: 900px) { .events-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .ev-col li { grid-template-columns: 1fr; } .ev-col li .d { grid-row: auto; } }
@media (max-width: 600px) { .data-strip .n { font-size: 30px; } .data-strip div { padding: 14px; } }
@media (max-width: 600px) { .utility-bar .inner { gap: 14px; padding: 7px 16px; } .utility-bar a:first-child { display: none; } }

/* Heat Air News additions */
.tiles { display: inline-flex; gap: 3px; font-family: 'Barlow Condensed', Arial, sans-serif; font-weight: 800; font-size: 46px; line-height: 1; }
.tiles span { color: #fff; padding: 7px 12px 8px; }
.site-header .btn { flex: none; }
.article a, .prose a, .sources a { color: var(--blue); }
.article a:hover, .prose a:hover { text-decoration: underline; }
.byline a b:hover { color: var(--blue); }
.feat-2 { margin-top: 8px; }
.feat-2 .card h3 { font-size: 20px; }
.feat-2 .card .art { aspect-ratio: 16 / 7; }
.footer-3 { grid-template-columns: 2fr 1fr 1fr; }
.page-head { padding: 30px 0 22px; }
.page-head h1 { font-size: 36px; color: var(--ink); margin: 0 0 4px; }
.page-head p { margin: 4px 0 0; color: var(--muted); max-width: 760px; }
.prose { max-width: 760px; padding-top: 30px; font-size: 17px; line-height: 1.7; }
.prose h1 { font-size: 36px; line-height: 1.15; color: var(--ink); margin: 0 0 14px; }
.prose h2 { font-size: 21px; color: var(--ink); margin: 28px 0 6px; padding-left: 12px; border-left: 4px solid var(--red); }
.plain { list-style: none; padding: 0; }
.ev-full { max-width: 860px; }
.ev-full li a { color: var(--blue); }
.rail-p { font-size: 14px; margin: 0 0 12px; }
.rail .box li a:hover { color: var(--blue); }
.signup { display: grid; gap: 14px; margin-top: 16px; }
.signup label { display: block; font-weight: 700; font-size: 14px; color: var(--ink); }
.signup input:not([type=checkbox]), .signup select, .signup textarea { display: block; width: 100%; margin-top: 4px; padding: 11px 12px; border: 1px solid #cfd6df; font: inherit; font-weight: 400; font-size: 15px; background: #fff; }
.signup input:user-invalid, .signup textarea:user-invalid { border-color: var(--red); }
.signup .two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.signup .check { display: flex; gap: 10px; align-items: flex-start; font-weight: 500; }
.signup .check input { margin-top: 5px; flex: none; }
.signup button { border: 0; cursor: pointer; justify-self: start; }
.signup .hp { position: absolute; left: -9999px; }
.form-msg:empty { display: none; }
.form-msg { padding: 10px 14px; font-weight: 600; }
.form-msg.bad { background: var(--tint-red); border-left: 4px solid var(--red); }
.form-msg.ok { background: #eef4fc; border-left: 4px solid var(--blue); }
.article .body table { border-collapse: collapse; width: 100%; font-size: 15px; }
.article .body th { background: var(--blue); color: #fff; text-align: left; padding: 8px; }
.article .body td { border-bottom: 1px solid var(--rule); padding: 8px; }
@media (max-width: 900px) { .footer-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .tiles { font-size: 30px; } .tiles span { padding: 5px 8px 6px; } .site-header .btn { padding: 9px 10px; font-size: 10px; } .signup .two, .footer-3 { grid-template-columns: 1fr; } .page-head h1, .prose h1 { font-size: 28px; } }

.mst { display: inline-block; font-family: 'Barlow Condensed', Arial, sans-serif; text-align: center; }
.mst .inl { display: flex; align-items: center; justify-content: center; gap: 5px; font-weight: 900; font-size: 62px; line-height: .92; letter-spacing: 1px; }
.mst .flm { width: 38px; height: 57px; flex: none; }
.mst .rl { display: block; height: 4px; margin: 3px 0 4px; }
.mst .sm { display: block; font-weight: 700; font-size: 16px; letter-spacing: 14px; margin-right: -14px; line-height: 1; }
@media (max-width: 600px) { .mst .inl { font-size: 40px; gap: 3px; } .mst .flm { width: 25px; height: 37px; } .mst .rl { height: 3px; } .mst .sm { font-size: 11px; letter-spacing: 9px; margin-right: -9px; } }

.han { display: inline-flex; align-items: center; gap: 12px; }
.han .tiles { font-size: 58px; font-weight: 900; }
.han .tiles span { padding: 6px 13px 7px; min-width: 44px; text-align: center; }
.han-t { font-family: 'Barlow Condensed', Arial, sans-serif; font-weight: 700; font-size: 30px; line-height: 1; letter-spacing: 1px; }
.han-t small { display: block; font-family: 'Barlow', Arial, sans-serif; font-size: 9.5px; font-weight: 700; letter-spacing: 1.2px; margin-top: 6px; }
@media (max-width: 600px) { .han { gap: 8px; } .han .tiles { font-size: 34px; } .han .tiles span { padding: 4px 7px 5px; min-width: 0; } .han-t { font-size: 17px; } .han-t small { display: none; } }
.data-strip div div { padding: 0; border: 0; }
.latest-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
@media (max-width: 600px) { .data-strip > div { padding: 14px; } .data-strip div div { padding: 0; } .latest-grid { grid-template-columns: 1fr; } }