:root{
  --ink:#10232a;
  --muted:#53666d;
  --ocean:#0d6672;
  --ocean2:#084b55;
  --sky:#6dbed2;
  --sky2:#dff4f8;
  --foam:#f5fbfc;
  --mint:#eaf7f2;
  --sand:#fffaf0;
  --white:#fff;
  --line:#d3e3e8;
  --gold:#d8a84d;
  --warn:#fff3d4;
  --red:#8d3e3e;
  --shadow:0 18px 48px rgba(13,102,114,.11);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;font-size:19px}
body{
  margin:0;
  font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;
  color:var(--ink);
  background:var(--foam);
  font-size:1rem;
  line-height:1.72;
}
a{color:#075b67;text-decoration:underline;text-underline-offset:3px}
a:hover{color:#043f47}
a:focus-visible,summary:focus-visible{
  outline:4px solid #e2ae55;
  outline-offset:4px;
}
.skip{position:absolute;left:-9999px}
.skip:focus{
  left:16px;top:14px;z-index:1000;background:#fff;color:#111;
  padding:12px 16px;border:2px solid #111
}
img{max-width:100%;height:auto;display:block}
.container{width:min(1180px,92%);margin:auto}
.topline{
  background:#073a42;color:#f5fbfc;text-align:center;
  padding:11px 14px;font-size:.9rem;font-weight:700
}
header{
  background:rgba(255,255,255,.98);
  border-bottom:2px solid var(--line);
  position:sticky;top:0;z-index:50
}
.nav{
  min-height:82px;display:flex;align-items:center;
  justify-content:space-between;gap:22px
}
.brand{
  font-size:1.38rem;font-weight:900;color:#073f48;
  text-decoration:none;letter-spacing:-.3px
}
.brand span{color:#2f8da0}
.navlinks{display:flex;gap:18px;flex-wrap:wrap}
.navlinks a{
  color:#19323a;font-size:.98rem;font-weight:800;text-decoration:none
}
.navlinks a:hover{text-decoration:underline}
.hero{
  position:relative;overflow:hidden;padding:74px 0 64px;
  background:
    radial-gradient(circle at 82% 18%,rgba(109,190,210,.23),transparent 27%),
    linear-gradient(180deg,#fff 0%,#eef9fb 100%)
}
.hero:before{
  content:"";position:absolute;left:-8%;right:-8%;bottom:-88px;height:190px;
  border-radius:50% 50% 0 0 / 100% 100% 0 0;
  background:linear-gradient(90deg,rgba(13,102,114,.10),rgba(109,190,210,.08))
}
.hero-grid{
  display:grid;grid-template-columns:1.06fr .94fr;
  gap:52px;align-items:center;position:relative;z-index:2
}
.kicker{
  display:inline-block;background:#e3f5f8;border:1px solid #bfe3ea;
  color:#075867;padding:8px 13px;border-radius:999px;
  font-size:.86rem;font-weight:900;letter-spacing:.45px
}
h1{
  color:#073d46;font-size:clamp(2.45rem,5vw,4.35rem);
  line-height:1.04;letter-spacing:-1.2px;margin:18px 0
}
h2{
  color:#123f48;font-size:clamp(1.7rem,3vw,2.34rem);
  line-height:1.2;margin:0 0 19px
}
h3{font-size:1.26rem;line-height:1.3;color:#155563;margin:0 0 9px}
p{margin:0 0 15px}
.lead{font-size:1.15rem;color:#465b62;max-width:770px}
.btnrow{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:58px;padding:15px 26px;border-radius:12px;
  border:2px solid var(--ocean2);font-size:1rem;font-weight:900;text-decoration:none
}
.btn-main{
  background:var(--ocean2);color:#fff;
  box-shadow:0 10px 26px rgba(8,75,85,.22)
}
.btn-main:hover{background:#063a42;color:#fff;text-decoration:none}
.btn-alt{background:#fff;color:#073f48}
.btn-alt:hover{text-decoration:none;background:#f8fcfd}
.micro{font-size:.9rem;color:var(--muted);margin-top:13px}
.product-card{
  background:linear-gradient(180deg,#fff,#f5fbfc);
  border:2px solid var(--line);border-radius:30px;padding:28px;
  box-shadow:var(--shadow);position:relative
}
.product-card:after{
  content:"RESPIRATORY WELLNESS";
  position:absolute;right:18px;bottom:14px;
  color:rgba(13,102,114,.11);font-size:.8rem;font-weight:900;letter-spacing:1.5px
}
.product-card img{width:min(540px,100%);margin:auto;object-fit:contain}
.airbar{background:#073f48;color:#fff}
.airgrid{display:grid;grid-template-columns:repeat(4,1fr)}
.air{
  padding:19px 12px;text-align:center;border-right:1px solid rgba(255,255,255,.15)
}
.air:last-child{border-right:0}
.air strong{display:block;font-size:1.03rem}
.air span{font-size:.86rem;color:#cfe3e8}
.section{padding:55px 0}
.section.white{background:#fff}
.section.sky{background:#eef9fb}
.section.mint{background:#f0f8f4}
.section.tight{padding:40px 0}
.flow{
  display:grid;grid-template-columns:180px 1fr;gap:30px;align-items:start
}
.flow-marker{
  position:sticky;top:110px;
  background:linear-gradient(180deg,#0d6672,#2c8da0);
  color:#fff;border-radius:24px;padding:24px 18px;text-align:center
}
.flow-marker .num{font-size:3.6rem;font-weight:900;line-height:.9}
.flow-marker .label{
  margin-top:9px;font-size:.76rem;letter-spacing:1.2px;font-weight:900;text-transform:uppercase
}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  background:#fff;border:2px solid var(--line);border-radius:var(--radius);
  padding:23px;box-shadow:0 8px 26px rgba(13,102,114,.045)
}
.card p{color:var(--muted)}
.table-wrap{
  overflow:auto;background:#fff;border:2px solid var(--line);border-radius:15px
}
table{width:100%;border-collapse:collapse;min-width:730px}
th,td{
  padding:16px 18px;border-bottom:1px solid var(--line);
  text-align:left;vertical-align:top;font-size:1rem
}
th{background:#eaf5f7;color:#164651;font-size:1rem;font-weight:900}
tr:last-child td{border-bottom:0}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checks li{position:relative;padding-left:32px}
.checks li:before{
  content:"✓";position:absolute;left:0;top:-1px;
  color:#2f7655;font-size:1.15rem;font-weight:900
}
.pricebox{
  background:linear-gradient(135deg,#074b55,#167b88);
  color:#fff;border-radius:26px;padding:32px;box-shadow:var(--shadow)
}
.pricebox h2,.pricebox p{color:#fff}
.pricing-image{
  background:#fff;border-radius:16px;padding:17px;margin-top:21px
}
.pricing-image img{margin:auto}
.info{
  background:#edf8f3;border:2px solid #cce6d8;border-radius:14px;padding:17px 19px
}
.warn{
  background:var(--warn);border:2px solid #e6cf93;border-radius:14px;padding:17px 19px
}
.policy-conflict{
  background:#fff0ef;border:2px solid #e4b8b3;border-left:7px solid var(--red);
  border-radius:14px;padding:18px 20px
}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.faq{display:grid;gap:12px}
details{
  background:#fff;border:2px solid var(--line);border-radius:14px;padding:17px 19px
}
summary{cursor:pointer;font-size:1.05rem;font-weight:900;color:#144a55}
details p{margin:12px 0 0;color:var(--muted)}
.breadcrumbs{font-size:.9rem;color:var(--muted);margin-bottom:18px}
.legal{max-width:950px}
.legal h1{font-size:clamp(2.15rem,4vw,3.1rem)}
.legal h2{font-size:1.58rem;margin-top:32px}
.legal ul{padding-left:24px}
.legal li{margin:8px 0}
footer{
  background:#06343c;color:#e7f1f3;padding:40px 0 24px;margin-top:30px
}
.footergrid{display:grid;grid-template-columns:1.05fr 1fr;gap:26px}
.footerlinks{display:flex;gap:15px;flex-wrap:wrap}
footer a{color:#fff}
.footnote{font-size:.9rem;color:#c5d7db}
.copy{
  margin-top:24px;border-top:1px solid rgba(255,255,255,.16);
  padding-top:18px;font-size:.86rem;color:#afc2c6
}
@media(max-width:920px){
  header{position:static}
  .nav{flex-direction:column;align-items:flex-start;padding:16px 0}
  .hero-grid,.cards,.split,.footergrid,.flow{grid-template-columns:1fr}
  .flow-marker{position:static;text-align:left}
  .airgrid{grid-template-columns:repeat(2,1fr)}
  h1{font-size:2.7rem}
}
@media(max-width:540px){
  html{font-size:18px}
  .section{padding:42px 0}
  .btnrow .btn{width:100%}
  .pricebox{padding:21px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}