/* inflator.org — single stylesheet. System fonts only, no external requests. */
:root{
  --ink:#16232E;         /* gauge-steel */
  --ink-soft:#41525F;
  --paper:#FFFFFF;
  --panel:#F2F5F7;       /* cool steel tint */
  --line:#D9E1E6;
  --air:#0B7285;         /* compressed-air teal */
  --air-deep:#095C6E;
  --cta:#C24608;         /* safety orange — darkened for 5.0:1 white-on-orange (WCAG AA) */
  --cta-deep:#A03A05;
  --ok:#2B8A3E;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --maxw:72rem;
  --r:10px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.65;font-size:1.0625rem}
img,svg{max-width:100%;height:auto}
a{color:var(--air-deep)}
a:hover{color:var(--air)}
:focus-visible{outline:3px solid var(--cta);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.5rem 1rem;z-index:99}
.skip:focus{left:.5rem;top:.5rem}

/* ---------- header / CSS-only nav ---------- */
header.site{border-bottom:1px solid var(--line);background:var(--paper);position:sticky;top:0;z-index:10}
.bar{display:flex;align-items:center;gap:1rem;min-height:3.75rem}
.logo{font-weight:800;font-size:1.25rem;letter-spacing:-.02em;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:.5rem}
.logo b{color:var(--air)}
.logo .dot{width:.85rem;height:.85rem;border-radius:50%;background:conic-gradient(var(--cta) 0 62%,var(--line) 62% 100%);border:2px solid var(--ink);flex:none}
nav.main{margin-left:auto}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:.25rem}
nav.main a{display:block;padding:.55rem .8rem;text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem;border-radius:8px}
nav.main a:hover{background:var(--panel);color:var(--ink)}
#nav-t{display:none}
.nav-btn{display:none;margin-left:auto;padding:.5rem .75rem;border:1px solid var(--line);border-radius:8px;font-weight:700;cursor:pointer;font-size:.95rem;background:var(--paper)}
@media(max-width:47.9rem){
  .nav-btn{display:block}
  nav.main{position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);display:none;margin:0}
  nav.main ul{flex-direction:column;padding:.5rem 1rem 1rem}
  #nav-t:checked ~ nav.main{display:block}
}

/* ---------- signature: gauge readout chips ---------- */
.spec{display:inline-flex;flex-wrap:wrap;gap:.35rem}
.spec span{font-family:var(--mono);font-size:.78rem;letter-spacing:.02em;background:var(--ink);color:#CFE8EE;padding:.2rem .55rem;border-radius:4px;white-space:nowrap}
.spec span.hot{background:var(--cta);color:#fff}
.eyebrow{font-family:var(--mono);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--air-deep);margin:0 0 .5rem}

/* ---------- hero + CSS pressure dial ---------- */
.hero{background:linear-gradient(180deg,var(--panel),var(--paper));border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;gap:2rem;padding-top:3rem;padding-bottom:3rem;grid-template-columns:1fr;align-items:center}
@media(min-width:56rem){.hero .wrap{grid-template-columns:1.4fr 1fr}}
h1{font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.12;letter-spacing:-.025em;margin:.25rem 0 .75rem;font-weight:800}
.hero p.lead{font-size:1.15rem;color:var(--ink-soft);max-width:36rem;margin:0 0 1.5rem}
.dial{width:min(16rem,70vw);aspect-ratio:1;border-radius:50%;margin:0 auto;position:relative;
  background:conic-gradient(from 210deg,var(--air) 0 200deg,var(--cta) 200deg 250deg,var(--line) 250deg 300deg,transparent 300deg);
  -webkit-mask:radial-gradient(circle,transparent 58%,#000 59%);mask:radial-gradient(circle,transparent 58%,#000 59%)}
.dial-box{position:relative;display:none}
@media(min-width:56rem){.dial-box{display:block}}
.dial-box::after{content:"PSI";position:absolute;inset:0;display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:1.4rem;color:var(--ink-soft);letter-spacing:.2em}

/* ---------- buttons ---------- */
.btn{display:inline-block;text-decoration:none;font-weight:700;border-radius:8px;padding:.7rem 1.15rem;line-height:1.2}
.btn-cta{background:var(--cta);color:#fff}
.btn-cta:hover{background:var(--cta-deep);color:#fff}
.btn-ghost{border:2px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{padding:.5rem .85rem;font-size:.92rem}

/* ---------- layout blocks ---------- */
main{display:block}
section.band{padding:2.75rem 0}
section.band.alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(1.4rem,3vw,1.9rem);letter-spacing:-.02em;line-height:1.2;margin:0 0 1rem}
h3{font-size:1.2rem;margin:1.75rem 0 .5rem;letter-spacing:-.01em}
.grid{display:grid;gap:1rem}
@media(min-width:40rem){.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}}
@media(min-width:56rem){.g4{grid-template-columns:repeat(4,1fr)}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:1.1rem 1.15rem;display:flex;flex-direction:column;gap:.5rem}
.card h3{margin:0;font-size:1.08rem}
.card p{margin:0;color:var(--ink-soft);font-size:.95rem}
.card a.cover{text-decoration:none;color:inherit}
.card a.cover:hover h3{color:var(--air-deep)}
.card .spec{margin-top:auto}

/* ---------- product pick blocks (money pages) ---------- */
.pick{border:1px solid var(--line);border-radius:var(--r);padding:1.4rem;margin:1.5rem 0;background:var(--paper)}
.pick.top{border:2px solid var(--air);box-shadow:0 4px 0 var(--air)}
.pick .award{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:#fff;background:var(--air);display:inline-block;padding:.25rem .6rem;border-radius:4px;margin-bottom:.6rem}
.pick.top .award{background:var(--cta)}
.pick h3{margin:.1rem 0 .4rem;font-size:1.3rem}
.pick .spec{margin:.5rem 0 .9rem}
.pick ul{margin:.5rem 0 1rem;padding-left:1.2rem}
.pick li{margin:.2rem 0}
.verdict{background:var(--panel);border-left:4px solid var(--air);padding:.8rem 1rem;border-radius:0 8px 8px 0;margin:.75rem 0;font-size:.98rem}

/* ---------- tables ---------- */
.tbl-wrap{overflow-x:auto;margin:1.25rem 0;border:1px solid var(--line);border-radius:var(--r)}
table{border-collapse:collapse;width:100%;min-width:38rem;font-size:.95rem}
th{background:var(--ink);color:#fff;text-align:left;padding:.6rem .8rem;font-weight:700;white-space:nowrap}
td{padding:.6rem .8rem;border-top:1px solid var(--line);vertical-align:top}
tbody tr:nth-child(even){background:var(--panel)}
td .btn{white-space:nowrap}

/* ---------- article/prose ---------- */
.prose{max-width:46rem}
.prose p{margin:.9rem 0}
.prose ul,.prose ol{padding-left:1.3rem}
.prose li{margin:.35rem 0}
.note{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:.9rem 1.1rem;font-size:.95rem;margin:1.25rem 0}
.crumbs{font-size:.85rem;padding:1rem 0 0;color:var(--ink-soft)}
.crumbs a{color:var(--ink-soft)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.35rem;margin:0;padding:0}
.crumbs li+li::before{content:"›";margin-right:.35rem;color:var(--line)}
.byline{font-size:.85rem;color:var(--ink-soft);margin:0 0 1.5rem;font-family:var(--mono)}

/* ---------- FAQ ---------- */
details{border:1px solid var(--line);border-radius:8px;margin:.5rem 0;background:var(--paper)}
summary{cursor:pointer;font-weight:700;padding:.75rem 1rem}
details p{padding:0 1rem .9rem;margin:0;color:var(--ink-soft)}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:#B9C6CE;margin-top:3rem;font-size:.92rem}
footer.site .wrap{padding-top:2.5rem;padding-bottom:2rem}
footer.site h2{color:#fff;font-size:1rem;margin:0 0 .6rem;letter-spacing:.05em;text-transform:uppercase;font-family:var(--mono)}
footer.site ul{list-style:none;margin:0;padding:0}
footer.site li{margin:.3rem 0}
footer.site a{color:#DCE7EC;text-decoration:none}
footer.site a:hover{color:#fff;text-decoration:underline}
.foot-grid{display:grid;gap:1.5rem}
@media(min-width:40rem){.foot-grid{grid-template-columns:repeat(4,1fr)}}
.disclosure{border-top:1px solid #2C3A45;margin-top:2rem;padding-top:1.25rem;font-size:.82rem;color:#8FA0AA}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media print{header.site,footer.site,.btn{display:none}}