/* PropaneDays: the site's own rules, on top of the look's kit (/assets/look.css) */
:root { --h2: clamp(1.3rem, 3.1vw, 2.35rem); --h3: 1.02rem; --cold: #0b3d91; }
::selection { background: var(--accent); color: #fff; }
body { font-size: 1.0625rem; caret-color: var(--accent); }
html { scrollbar-color: #000 #f2f2f2; }
h3 { letter-spacing: -0.01em; line-height: 1.15; }
p { max-width: 62ch; text-wrap: pretty; }
.btn { white-space: normal; text-align: center; line-height: 1.2; max-width: 100%; }
.carousel-dots button { width: 44px; height: 44px; background: transparent; display: grid; place-items: center; }
.carousel-dots button::before { content: ''; width: 10px; height: 10px; background: #000; transition: width .3s; }
.carousel-dots button[aria-current="true"] { width: 44px; background: transparent; }
.carousel-dots button[aria-current="true"]::before { width: 26px; background: var(--accent); }
.foot-row a, .foot-row .syng-legal-links a { display: inline-flex; align-items: center; min-height: 44px; }
.more { min-height: 44px; }
a { color: var(--ink); text-decoration-thickness: 2px; text-decoration-color: var(--accent); }
a:hover { color: var(--accent); }
.num { font-family: var(--text); font-weight: 800; font-variant-numeric: tabular-nums; }

/* the bar */
.topbar { border-bottom: var(--bw) solid #000; background: #fff; position: sticky; top: 0; z-index: 20; }
.top .brand img { width: 40px; height: 40px; border-radius: 0; }
.top .brand span { font-size: clamp(.9rem, 2.4vw, 1.15rem); }
.top nav, .top .acts { display: flex; align-items: center; gap: clamp(.6rem, 2vw, 1.4rem); }
.top .link { font-weight: 700; text-decoration: none; color: var(--ink); display: inline-flex; align-items: center; gap: .3em; min-height: 44px; }
.top .link:hover { text-decoration: underline; text-decoration-color: var(--accent); }
.top .btn { min-height: 44px; padding: 0 1em; font-size: .82rem; box-shadow: 4px 4px 0 #000; }
@media (max-width: 420px) { .top .brand span { display: none; } }

/* the hero: a cover */
.hero { padding-block: clamp(1.4rem, 4vw, 2.6rem) clamp(2.5rem, 6vw, 4rem); border-bottom: var(--bw) solid #000; }
.hero h1 { font-size: var(--h1); margin-bottom: clamp(1.1rem, 3vw, 1.8rem); max-width: none; }
.hero-grid { display: grid; gap: clamp(1.5rem, 4vw, 3rem); }
.hero-copy p { font-size: clamp(1.08rem, 1.6vw, 1.25rem); line-height: 1.45; margin-bottom: 1.3rem; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem 1.2rem; }
.cta-note { font-weight: 700; display: inline-flex; align-items: center; gap: .4em; }
.hero-proof { margin-top: 1.4rem; font-size: .95rem; border-top: var(--bw) solid #000; padding-top: .9rem; }
.hero-proof strong { background: var(--accent); color: #fff; padding: 0 .2em; }
@media (min-width: 900px) {
  .hero-grid { grid-template-columns: minmax(280px, 360px) 1fr; align-items: start; }
}

figure { margin: 0; }
figcaption { font-size: .9rem; margin-top: .9rem; color: var(--ink-2); }
.shot { max-height: 470px; overflow: hidden; }
@media (max-width: 859px) { .step .eg { display: none; } .sec-head p { display: none; } }
@media (min-width: 900px) { .shot { max-height: 440px; } }
@media (min-width: 1100px) {
  .hero .fc { grid-template-columns: 1fr 1fr; column-gap: 1.4rem; }
  .hero .fc-top, .hero .why { grid-column: 1 / -1; }
  .hero .chart-wrap { grid-column: 2; grid-row: 2 / span 2; align-self: end; }
}
.chart-x { font-size: .75rem; }
.shot.fade { -webkit-mask-image: linear-gradient(#000 76%, transparent); mask-image: linear-gradient(#000 76%, transparent); }

/* a forecast: the product's own screen */
.panel > .bar { font: 700 .82rem/1.2 var(--text); color: var(--ink); border-bottom: var(--bw) solid #000; background: var(--bg-2);
  justify-content: space-between; flex-wrap: wrap; }
.panel > .bar .live { display: inline-flex; align-items: center; gap: .45em; font-weight: 500; }
.fc { display: grid; gap: 1.1rem; }
.fc-top { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .4rem 1rem; }
.fc-place { font-weight: 700; }
.fc-big { display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap; }
.fc-big .num { font: 400 clamp(2.6rem, 7vw, 4rem)/1 var(--display); }
.fc-big span:last-child { font-weight: 700; font-size: 1.05rem; }
.fc-rows { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 0; border: var(--bw) solid #000; }
.fc-rows > div { padding: .65rem .8rem; border-bottom: 2px solid #000; }
.fc-rows > div:nth-child(odd) { border-right: 2px solid #000; }
.fc-rows > div:nth-last-child(-n+2) { border-bottom: 0; }
.fc-rows dt { font-size: .82rem; font-weight: 700; color: var(--ink-2); }
.fc-rows dd { margin: 0; font-weight: 800; font-size: 1.08rem; }
.fc-rows .hot dd { background: var(--accent); color: #fff; display: inline-block; padding: 0 .25em; }
.why { display: flex; gap: .55rem; align-items: flex-start; font-weight: 500; margin: 0; }
.why .i { color: var(--accent); margin-top: .15em; }
.badge.est { background: #fff; }

.chart-wrap { display: grid; gap: .35rem; }
.chart-title { font-size: .85rem; font-weight: 700; display: flex; justify-content: space-between; gap: 1rem; }
.chart { display: grid; grid-template-columns: repeat(16, 1fr); align-items: end; gap: 3px; height: 130px;
  border-bottom: var(--bw) solid #000; }
.chart span { display: block; background: var(--ink); min-height: 3px; height: calc(var(--h) * 1%); position: relative; }
.chart span.cold { background: var(--accent); }
.chart span.norm { background: repeating-linear-gradient(45deg, #000 0 3px, #fff 3px 6px); }
.chart-x { display: grid; grid-template-columns: repeat(16, 1fr); gap: 3px; font-size: .7rem; font-weight: 700; }
.chart-x span { text-align: center; white-space: nowrap; overflow: visible; }
.chart-key { font-size: .8rem; display: flex; flex-wrap: wrap; gap: .3rem 1rem; }
.chart-key i { display: inline-block; width: .8em; height: .8em; background: var(--accent); margin-right: .3em; vertical-align: -.05em; }
.chart-key i.k { background: var(--ink); }

/* sections */
.sec-head { margin-bottom: clamp(1.6rem, 4vw, 2.6rem); max-width: 900px; }
.sec-head p { font-size: 1.1rem; }
#how { background: var(--bg-2); border-bottom: var(--bw) solid #000; }
.steps { display: grid; gap: var(--gap); list-style: none; padding: 0; margin: 0; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { background: #fff; border: var(--bw) solid #000; box-shadow: var(--card-shadow); padding: var(--pad); display: grid; gap: .7rem; align-content: start; }
.step-head { display: flex; align-items: center; gap: .8rem; }
.step h3 { margin: 0; }
.step p { margin: 0; }
.i-box { border: var(--bw) solid #000; background: var(--accent); color: #fff; }
.step .eg { font-size: .9rem; font-weight: 700; border-top: 2px solid #000; padding-top: .6rem; }

#price { border-bottom: var(--bw) solid #000; }
.price-grid { display: grid; gap: clamp(2rem, 5vw, 3.5rem); }
@media (min-width: 900px) { .price-grid { grid-template-columns: minmax(320px, 440px) 1fr; align-items: start; } }
.plan { background: var(--accent); color: #fff; border: var(--bw) solid #000; box-shadow: var(--card-shadow); padding: clamp(1.3rem, 3vw, 2rem); }
.plan h2 { color: #fff; }
.plan .amount { font: 400 clamp(3.4rem, 9vw, 5.5rem)/1 var(--display); display: flex; align-items: baseline; gap: .2em; margin: .4rem 0 1rem; }
.plan .amount small { font: 700 1.1rem/1 var(--text); text-transform: none; }
.plan ul { list-style: none; padding: 0; margin: 0 0 1.4rem; display: grid; gap: .55rem; font-weight: 500; }
.plan li { display: flex; gap: .55rem; align-items: flex-start; }
.plan li .i { margin-top: .2em; }
.plan .btn { background: #fff; color: #000; width: 100%; }
.plan .fine { margin: 1rem 0 0; font-size: .92rem; }
.plan .fine a { color: #fff; }
#faq h2 { font-size: clamp(1.1rem, 2.4vw, 1.6rem); }
.qa { display: grid; gap: 0; border-top: var(--bw) solid #000; }
.qa > div { padding: 1rem 0; border-bottom: var(--bw) solid #000; }
.qa h3 { margin: 0 0 .45rem; }
.qa p { margin: 0; }
.more { display: inline-flex; align-items: center; gap: .4em; font-weight: 800; margin-top: 1.1rem; }

#what { border-bottom: var(--bw) solid #000; }
.mail { background: #fff; border: var(--bw) solid #000; box-shadow: var(--card-shadow); height: 100%; display: flex; flex-direction: column; }
.mail-head { border-bottom: var(--bw) solid #000; padding: .8rem 1rem; display: grid; gap: .2rem; font-size: .9rem; background: var(--bg-2); }
.mail-head b { font-size: 1rem; }
.mail-body { padding: 1rem; display: grid; gap: .6rem; font-size: .98rem; }
.mail-body p { margin: 0; }
.mail-body .rows { border: 2px solid #000; padding: .6rem .75rem; display: grid; gap: .25rem; font-weight: 700; }
.mail-body .rows span { font-weight: 500; }
.mail-body .go { align-self: start; display: inline-flex; gap: .4em; align-items: center; background: var(--accent); color: #fff;
  font: 400 .8rem/1 var(--display); text-transform: uppercase; padding: .7em 1em; border: 2px solid #000; }
.carousel .slide { --slide: min(88%, 380px); }
.carousel-track { padding: 4px 12px 14px 4px; }
.carousel-nav [data-prev], .carousel-nav [data-next] { box-shadow: 3px 3px 0 #000; }
.what-grid > *, .hero-grid > *, .price-grid > *, .calc-grid > * { min-width: 0; }
.what-grid { display: grid; gap: clamp(1.5rem, 4vw, 3rem); }
@media (min-width: 960px) { .what-grid { grid-template-columns: minmax(260px, 340px) 1fr; align-items: start; } }
.what-note { font-weight: 500; }
.what-note strong { background: var(--accent); color: #fff; padding: 0 .2em; }

.band { background: #000; color: #fff; padding-block: clamp(3rem, 8vw, 5.5rem); }
.band .wrap { display: grid; gap: 1.6rem; justify-items: start; }
.band h2 { color: #fff; font-size: clamp(1.5rem, 4.4vw, 3.3rem); margin: 0; max-width: 18ch; }
.band .btn { box-shadow: 6px 6px 0 var(--accent); border-color: #fff; }

/* the footer */
.foot { background: #fff; border-top: var(--bw) solid #000; color: var(--ink); padding-block: 2.2rem 2.6rem; }
.foot .wrap { display: grid; gap: 1.2rem; }
.foot .word { font: 400 clamp(1.6rem, 8.4vw, 7rem)/.9 var(--display); text-transform: uppercase; letter-spacing: -0.04em;
  margin: 0; overflow-wrap: anywhere; }
.foot-row { display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; align-items: center; font-weight: 700; }
.foot-row a { color: var(--ink); }
.syng-legal-links a { color: var(--ink); }
.attrib { font-size: .88rem; color: var(--ink-2); margin: 0; }

/* questions page */
.qpage h1 { font-size: clamp(1.95rem, 4.4vw, 3.2rem); }
.qpage .qa { max-width: 860px; }
.qpage section { padding-block: clamp(2rem, 5vw, 3.5rem); border-bottom: var(--bw) solid #000; }
.facts { display: grid; gap: var(--gap); }
@media (min-width: 800px) { .facts { grid-template-columns: repeat(3, 1fr); } }
.fact { border: var(--bw) solid #000; padding: var(--pad); box-shadow: var(--card-shadow); background: #fff; }
.fact b { font: 400 clamp(1.6rem, 3.6vw, 2.4rem)/1 var(--display); display: block; margin-bottom: .5rem; }
.fact a { font-size: .85rem; }

/* forms and the app */
.page { padding-block: clamp(1.5rem, 4vw, 3rem) 4rem; }
.auth h1 { font-size: clamp(1.5rem, 4vw, 2.3rem); }
.auth .card { margin-top: 1rem; }
.auth .alt { margin-top: 1.2rem; font-weight: 500; }
.msg { border: var(--bw) solid #000; padding: .75rem 1rem; font-weight: 700; margin: 0 0 1rem; background: #fff; }
.msg.error { background: #ffe9e6; color: var(--bad); }
.msg.ok { background: #e6f5ec; color: var(--good); }
.hint { font-size: .88rem; color: var(--ink-2); margin: .3rem 0 0; }
fieldset { border: var(--bw) solid #000; padding: .8rem 1rem 1rem; margin: 0 0 1rem; }
legend { font-weight: 700; padding: 0 .3rem; }
.checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .4rem .8rem; }
.checks label { display: flex; align-items: center; gap: .5rem; font-weight: 500; margin: 0; min-height: 40px; cursor: pointer; }
.checks input { width: 22px; height: 22px; min-height: 0; accent-color: var(--accent); margin: 0; }
.form-grid { display: grid; gap: 0 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }
.calc-grid { display: grid; gap: clamp(1.5rem, 4vw, 2.5rem); }
@media (min-width: 960px) { .calc-grid { grid-template-columns: minmax(320px, 420px) 1fr; align-items: start; } }
.result-empty { border: var(--bw) dashed #000; padding: 2rem 1.2rem; display: grid; gap: .6rem; justify-items: start; background: var(--bg-2); }
.after { margin-top: 1.2rem; border: var(--bw) solid #000; background: var(--accent); color: #fff; padding: 1.1rem; display: grid; gap: .8rem; box-shadow: var(--card-shadow); }
.after p { margin: 0; font-weight: 500; }
.after .btn { background: #fff; color: #000; justify-self: start; }

.app-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; }
.app-head h1 { font-size: clamp(1.4rem, 3.6vw, 2.2rem); margin: 0; }
.status { border: var(--bw) solid #000; padding: .8rem 1rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: .7rem 1.2rem; margin-bottom: 1.5rem; background: #fff; font-weight: 700; }
.status.off { background: #fff4d6; }
.status .btn { min-height: 44px; font-size: .8rem; }
.tank { margin-bottom: 2rem; }
.tank .body { display: grid; gap: 1.3rem; }
@media (min-width: 960px) { .tank .split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 1.6rem; align-items: start; } }
.tools { display: flex; flex-wrap: wrap; gap: .7rem; }
.tools .btn { min-height: 46px; font-size: .78rem; }
.pcts { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: .5rem; }
.pcts button { min-height: 50px; border: var(--bw) solid #000; background: #fff; font: 800 1.05rem/1 var(--text); cursor: pointer; box-shadow: 3px 3px 0 #000; }
.pcts button:hover { background: var(--tint); }
.pcts button:active { transform: translate(3px, 3px); box-shadow: none; }
.logbox { border: var(--bw) solid #000; padding: 1rem; background: var(--bg-2); display: grid; gap: .9rem; }
.logbox h3 { margin: 0; }
.inline { display: flex; flex-wrap: wrap; gap: .8rem; align-items: end; }
.inline .field { margin: 0; flex: 1 1 160px; }
.hist { width: 100%; font-size: .95rem; }
.hist th, .hist td { border-bottom: 2px solid #000; padding: .5rem .5rem; }
.hist button { border: 2px solid #000; background: #fff; min-height: 36px; min-width: 36px; cursor: pointer; display: inline-grid; place-items: center; }
details.more-box { border: var(--bw) solid #000; background: #fff; }
details.more-box summary { cursor: pointer; padding: .8rem 1rem; font-weight: 800; display: flex; align-items: center; gap: .5rem; min-height: 48px; }
details.more-box > div { padding: 0 1rem 1rem; }
.danger { color: var(--bad); }
.btn.danger { background: #fff; color: var(--bad); border-color: var(--bad); box-shadow: 4px 4px 0 var(--bad); }
.acct section { padding-block: 1.4rem; border-bottom: var(--bw) solid #000; }
.acct h2 { font-size: clamp(1.05rem, 2.4vw, 1.4rem); display: flex; align-items: center; gap: .5rem; }
.spin { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; }