/* ==========================================================================
   BreathiZen — brathizen.com
   Prefix: oxy-   |   Content column + sticky buy-box
   ========================================================================== */

:root{
  --oxy-pine:#16362C;
  --oxy-pine2:#0E241D;
  --oxy-mint:#4FBE9C;
  --oxy-mint-dk:#3AA283;
  --oxy-berry:#C3446B;
  --oxy-cream:#FBF7F0;
  --oxy-card:#FFFFFF;
  --oxy-ink:#1B1F1D;
  --oxy-mute:#6B7671;
  --oxy-line:#E4DED2;

  --oxy-wide:1120px;
  --oxy-rail:320px;
  --oxy-bar:58px;
  --oxy-head:"Epilogue","Segoe UI",Arial,sans-serif;
  --oxy-body:"Hind","Segoe UI",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}}
body{
  margin:0;background:var(--oxy-cream);color:var(--oxy-ink);
  font-family:var(--oxy-body);font-size:17px;line-height:1.74;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  padding-bottom:var(--oxy-bar);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--oxy-mint-dk)}
[id]{scroll-margin-top:80px}
h1,h2,h3,h4{margin:0;font-family:var(--oxy-head);font-weight:800;line-height:1.15;
  letter-spacing:-.025em;color:var(--oxy-pine)}
h1{font-size:clamp(30px,4.4vw,52px)}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:19px;font-weight:700}
h4{font-size:16px;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid var(--oxy-mint-dk);outline-offset:3px}

/* ---------- scaffolding ---------- */
.oxy-skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--oxy-pine);
  color:#fff;padding:12px 20px;font-weight:700}
.oxy-skip:focus{left:0;top:0}
.oxy-shell{width:min(var(--oxy-wide),92vw);margin-inline:auto}
.oxy-soft{color:var(--oxy-mute)}
.oxy-fine{font-size:13px;line-height:1.66;color:var(--oxy-mute)}

/* ---------- strip + header ---------- */
.oxy-strip{background:var(--oxy-pine);color:#B4CFC5;font-size:12.5px;font-weight:500}
.oxy-strip__in{display:flex;flex-wrap:wrap;gap:4px 24px;justify-content:center;
  padding:9px 0;text-align:center}
.oxy-strip b{color:var(--oxy-mint)}

.oxy-head{position:sticky;top:0;z-index:60;background:rgba(251,247,240,.95);
  backdrop-filter:blur(9px);border-bottom:1px solid var(--oxy-line)}
.oxy-head__in{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:11px 0}
.oxy-logo{font-family:var(--oxy-head);font-weight:800;font-size:21px;letter-spacing:-.035em;
  color:var(--oxy-pine);text-decoration:none}
.oxy-logo b{color:var(--oxy-mint-dk);font-weight:800}
.oxy-menu{display:flex;align-items:center;gap:19px}
.oxy-menu a{color:var(--oxy-pine);text-decoration:none;font-family:var(--oxy-head);
  font-size:14px;font-weight:600}
.oxy-menu a:hover{color:var(--oxy-mint-dk)}
.oxy-tog{display:none;background:none;border:0;width:42px;height:32px;cursor:pointer;
  padding:0;flex-direction:column;justify-content:center;gap:5px}
.oxy-tog i{display:block;height:3px;background:var(--oxy-pine);border-radius:3px}

/* ---------- buttons ---------- */
.oxy-cta{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:var(--oxy-mint);color:var(--oxy-pine);text-decoration:none;
  font-family:var(--oxy-head);font-weight:800;font-size:16px;padding:15px 32px;
  border:0;border-radius:10px;
  transition:background .16s,transform .12s}
.oxy-cta:hover{background:var(--oxy-mint-dk);color:#fff;transform:translateY(-1px)}
.oxy-cta--s{padding:9px 20px;font-size:13.5px}
.oxy-cta--l{padding:17px 38px;font-size:17.5px}
.oxy-cta--w{width:100%}
.oxy-cta--dark{background:var(--oxy-pine);color:#fff}
.oxy-cta--dark:hover{background:var(--oxy-pine2);color:#fff}
.oxy-cta--edge{background:transparent;color:var(--oxy-pine);
  box-shadow:inset 0 0 0 2px var(--oxy-pine);padding:13px 30px}
.oxy-cta--edge:hover{background:var(--oxy-pine);color:#fff;transform:none}
.oxy-cta--pale{background:rgba(255,255,255,.12);color:#fff;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.4);padding:13px 30px}
.oxy-cta--pale:hover{background:rgba(255,255,255,.22);color:#fff;transform:none}
.oxy-ctas{display:flex;gap:12px;flex-wrap:wrap}
.oxy-link{color:var(--oxy-mint-dk);font-weight:600;text-decoration:none;
  border-bottom:2px solid rgba(79,190,156,.4)}
.oxy-link:hover{border-bottom-color:var(--oxy-mint-dk)}

/* ---------- hero ---------- */
.oxy-hero{background:linear-gradient(165deg,var(--oxy-pine),var(--oxy-pine2));
  color:#B4CFC5;padding:clamp(34px,4.4vw,64px) 0}
.oxy-hero__in{display:grid;grid-template-columns:1.1fr .9fr;
  gap:clamp(24px,4vw,52px);align-items:center}
.oxy-hero h1{color:#fff}
.oxy-hero h1 em{font-style:normal;color:var(--oxy-mint)}
.oxy-hero__p{font-size:19px;color:#9DB8AE;margin:16px 0 24px;max-width:50ch}
.oxy-hero__pic img{width:min(330px,86%);margin-inline:auto;
  filter:drop-shadow(0 18px 34px rgba(0,0,0,.42))}
.oxy-hero__ticks{display:grid;gap:8px;margin-bottom:26px}
.oxy-hero__ticks li{display:grid;grid-template-columns:auto 1fr;gap:11px;font-size:15.5px;
  color:#CBDDD5}
.oxy-hero__ticks i{width:20px;height:20px;border-radius:5px;background:var(--oxy-mint);
  color:var(--oxy-pine);font-style:normal;font-size:11px;font-weight:800;display:grid;
  place-items:center;margin-top:5px;font-family:var(--oxy-head)}
.oxy-hero__rate{display:flex;align-items:center;gap:10px;margin-top:20px;font-size:13.5px;
  color:#9DB8AE}
.oxy-hero__rate img{width:92px}

/* ---------- badge row ---------- */
.oxy-badges{background:var(--oxy-card);border-bottom:1px solid var(--oxy-line);
  padding:18px 0}
.oxy-badges__in{display:flex;gap:clamp(14px,2.6vw,40px);justify-content:center;
  flex-wrap:wrap;align-items:center}
.oxy-badges span{font-family:var(--oxy-head);font-size:13px;font-weight:700;
  color:var(--oxy-pine);display:flex;align-items:center;gap:7px}
.oxy-badges b{width:7px;height:7px;border-radius:2px;background:var(--oxy-mint);flex:0 0 7px}

/* ---------- the split: content column + sticky rail ---------- */
.oxy-body{padding:clamp(34px,4.4vw,64px) 0}
.oxy-split{display:grid;grid-template-columns:1fr var(--oxy-rail);
  gap:clamp(26px,3.6vw,52px);align-items:start}
.oxy-flow{min-width:0}
.oxy-rail{position:sticky;top:76px}

.oxy-offer{background:var(--oxy-card);border:2px solid var(--oxy-mint);border-radius:14px;
  padding:22px 20px;text-align:center}
.oxy-offer__flag{display:inline-block;background:var(--oxy-mint);color:var(--oxy-pine);
  font-family:var(--oxy-head);font-size:11px;font-weight:800;letter-spacing:.09em;
  text-transform:uppercase;padding:5px 14px;border-radius:6px;margin-bottom:14px}
.oxy-offer img{width:150px;margin:0 auto 14px}
.oxy-offer h3{font-size:19px;margin-bottom:2px}
.oxy-offer__len{font-size:13.5px;color:var(--oxy-mute);margin-bottom:12px}
.oxy-offer__unit{font-family:var(--oxy-head);font-size:38px;font-weight:800;line-height:1;
  color:var(--oxy-pine);margin:0}
.oxy-offer__unit sup{font-size:18px;vertical-align:super}
.oxy-offer__unit em{font-style:normal;font-size:13px;color:var(--oxy-mute);
  font-weight:400;font-family:var(--oxy-body)}
.oxy-offer__tot{font-size:14px;color:var(--oxy-mute);margin:8px 0 0}
.oxy-offer__tot s{margin-right:6px}
.oxy-offer__tot b{color:var(--oxy-berry);font-family:var(--oxy-head)}
.oxy-offer .oxy-cta{margin-top:14px}
.oxy-offer__note{font-size:12px;color:var(--oxy-mute);margin:10px 0 0;line-height:1.5}

/* ---------- content blocks ---------- */
.oxy-part{padding-bottom:clamp(30px,4vw,54px);margin-bottom:clamp(30px,4vw,54px);
  border-bottom:1px solid var(--oxy-line)}
.oxy-part:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.oxy-kick{display:inline-block;font-family:var(--oxy-head);font-size:11.5px;font-weight:800;
  letter-spacing:.15em;text-transform:uppercase;color:var(--oxy-berry);margin-bottom:11px}
.oxy-part h2+p{margin-top:12px;font-size:18px;color:var(--oxy-mute)}

.oxy-grid{display:grid;gap:clamp(16px,2.2vw,22px)}
.oxy-grid--2{grid-template-columns:repeat(2,1fr)}
.oxy-grid--3{grid-template-columns:repeat(3,1fr)}

.oxy-tile{background:var(--oxy-card);border-radius:12px;padding:22px 20px;
  border:1px solid var(--oxy-line)}
.oxy-tile h3{margin-bottom:7px;font-size:17.5px}
.oxy-tile p{font-size:15px;color:var(--oxy-mute);margin:0}
.oxy-tile__n{display:inline-grid;place-items:center;width:32px;height:32px;
  border-radius:8px;background:var(--oxy-pine);color:var(--oxy-mint);
  font-family:var(--oxy-head);font-weight:800;font-size:14px;margin-bottom:12px}
.oxy-tile--mint{background:#E9F7F2;border-color:transparent}

.oxy-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;padding:9px 0;
  font-size:16px}
.oxy-list i{width:22px;height:22px;border-radius:6px;background:var(--oxy-mint);
  color:var(--oxy-pine);font-style:normal;font-size:11px;font-weight:800;display:grid;
  place-items:center;margin-top:5px;font-family:var(--oxy-head)}

.oxy-quote{border-left:4px solid var(--oxy-berry);padding:4px 0 4px 20px;margin:26px 0;
  font-family:var(--oxy-head);font-weight:700;font-size:clamp(17px,1.9vw,20px);
  line-height:1.5;color:var(--oxy-pine)}

.oxy-mix{margin-top:22px}
.oxy-mix li{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:16px 0;
  border-bottom:1px dashed var(--oxy-line)}
.oxy-mix li:last-child{border-bottom:0}
.oxy-mix b{display:block;font-family:var(--oxy-head);font-size:16.5px;font-weight:800;
  color:var(--oxy-pine);margin-bottom:2px}
.oxy-mix p{font-size:15px;color:var(--oxy-mute);margin:0}
.oxy-mix span{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:#E9F7F2;font-family:var(--oxy-head);font-weight:800;font-size:14px;
  color:var(--oxy-mint-dk)}

.oxy-pair{display:grid;grid-template-columns:1fr 1fr;gap:clamp(22px,3.2vw,40px);
  align-items:center}
.oxy-pair img{border-radius:14px}

/* ---------- pricing ---------- */
.oxy-plans{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2.2vw,22px);
  align-items:start;margin-top:30px}
.oxy-plan{position:relative;background:var(--oxy-card);border:2px solid var(--oxy-line);
  border-radius:14px;padding:26px 20px;display:flex;flex-direction:column;
  text-align:center}
.oxy-plan--pick{border-color:var(--oxy-mint);background:#F4FBF8}
.oxy-plan__flag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--oxy-pine);color:#fff;font-family:var(--oxy-head);font-size:11px;
  font-weight:800;letter-spacing:.08em;padding:5px 15px;border-radius:6px;
  white-space:nowrap;text-transform:uppercase}
.oxy-plan--pick .oxy-plan__flag{background:var(--oxy-mint);color:var(--oxy-pine)}
.oxy-plan h3{font-size:22px;margin-bottom:2px}
.oxy-plan__len{font-size:13.5px;color:var(--oxy-mute);margin-bottom:14px}
.oxy-plan__pic{height:150px;display:grid;place-items:center;margin-bottom:12px}
.oxy-plan__pic img{max-height:150px;width:auto}
.oxy-plan__unit{font-family:var(--oxy-head);font-size:42px;font-weight:800;line-height:1;
  color:var(--oxy-pine);margin:0}
.oxy-plan__unit sup{font-size:20px;vertical-align:super}
.oxy-plan__unit em{font-style:normal;font-size:13.5px;color:var(--oxy-mute);
  font-weight:400;font-family:var(--oxy-body)}
.oxy-plan__save{align-self:center;background:var(--oxy-berry);color:#fff;
  font-family:var(--oxy-head);font-size:12px;font-weight:800;padding:4px 13px;
  border-radius:6px;margin:11px 0 5px}
.oxy-plan__tot{font-family:var(--oxy-head);font-size:15px;font-weight:700;
  color:var(--oxy-pine);margin:3px 0 0}
.oxy-plan__tot s{color:var(--oxy-mute);font-weight:400;margin-right:6px}
.oxy-plan__ship{font-size:12.5px;color:var(--oxy-mute);margin:3px 0 0}
.oxy-plan ul{margin:13px 0 16px}
.oxy-plan li{font-size:14px;color:var(--oxy-mute);padding:3px 0}
.oxy-plan__go{margin-top:auto;padding-top:12px}
.oxy-plan__pay{width:160px;margin:11px auto 0}

/* ---------- reviews ---------- */
.oxy-says{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(14px,2.2vw,22px)}
.oxy-say{background:var(--oxy-card);border:1px solid var(--oxy-line);border-radius:12px;
  padding:22px 20px}
.oxy-say__rate{width:88px;margin-bottom:11px}
.oxy-say p{font-size:15.5px;margin:0 0 15px}
.oxy-say footer{display:flex;gap:11px;align-items:center}
.oxy-say img.oxy-face{width:42px;height:42px;border-radius:10px;object-fit:cover;
  flex:0 0 42px}
.oxy-say b{display:block;font-family:var(--oxy-head);font-size:14.5px;color:var(--oxy-pine)}
.oxy-say span{font-size:12.5px;color:var(--oxy-mute)}

/* ---------- guarantee ---------- */
.oxy-vow{background:var(--oxy-pine);color:#B4CFC5;border-radius:16px;
  padding:clamp(24px,3.4vw,42px)}
.oxy-vow h2,.oxy-vow h3{color:#fff}
.oxy-vow p{color:#9DB8AE}
.oxy-vow .oxy-kick{color:var(--oxy-mint)}
.oxy-vow__in{display:grid;grid-template-columns:.62fr 1.38fr;
  gap:clamp(20px,3vw,40px);align-items:center}
.oxy-vow img{max-width:200px;margin-inline:auto}
.oxy-vow .oxy-list i{background:var(--oxy-mint);color:var(--oxy-pine)}
.oxy-vow .oxy-list li{color:#CBDDD5}

/* ---------- faq ---------- */
.oxy-faq{display:grid;gap:10px;margin-top:24px}
.oxy-q{background:var(--oxy-card);border:1px solid var(--oxy-line);border-radius:10px;
  overflow:hidden}
.oxy-q h3{margin:0;font-size:16.5px;font-family:var(--oxy-head);font-weight:700}
.oxy-q__b{width:100%;display:flex;justify-content:space-between;align-items:center;
  gap:15px;background:none;border:0;padding:17px 20px;cursor:pointer;font:inherit;
  color:var(--oxy-pine);text-align:left}
.oxy-q__b em{font-style:normal;font-family:var(--oxy-head);font-size:22px;font-weight:800;
  color:var(--oxy-mint-dk);line-height:1;transition:transform .2s}
.oxy-q__b[aria-expanded="true"] em{transform:rotate(45deg)}
.oxy-q__a{display:none;padding:0 20px 19px;max-width:74ch}
.oxy-q.is-open .oxy-q__a{display:block}
.oxy-q__a p{font-size:15.5px;color:var(--oxy-mute);margin:0}

/* ---------- bottom bar ---------- */
.oxy-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--oxy-pine);
  border-top:3px solid var(--oxy-mint)}
.oxy-bar__in{display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:var(--oxy-bar);padding:8px 0}
.oxy-bar__t{color:#fff;font-family:var(--oxy-head);font-size:14.5px;font-weight:700;
  margin:0;line-height:1.3}
.oxy-bar__t span{display:block;font-size:12.5px;font-weight:400;color:#9DB8AE;
  font-family:var(--oxy-body)}
.oxy-top{position:fixed;right:16px;bottom:calc(var(--oxy-bar) + 13px);z-index:65;
  width:40px;height:40px;border-radius:10px;border:0;background:var(--oxy-mint);
  color:var(--oxy-pine);cursor:pointer;display:none;place-items:center;font-size:16px;
  font-weight:800;box-shadow:0 5px 14px rgba(0,0,0,.2)}
.oxy-top.is-on{display:grid}

/* ---------- footer ---------- */
.oxy-foot{background:var(--oxy-pine2);color:#7E9990;padding:clamp(36px,4.4vw,60px) 0 22px;
  font-size:14.5px}
.oxy-foot a{color:#A7C0B7;text-decoration:none}
.oxy-foot a:hover{color:var(--oxy-mint)}
.oxy-foot__g{display:grid;grid-template-columns:2fr 1fr 1fr;gap:clamp(20px,3vw,42px)}
.oxy-foot .oxy-logo{color:#fff;display:inline-block;margin-bottom:13px}
.oxy-foot .oxy-logo b{color:var(--oxy-mint)}
.oxy-foot h2{font-family:var(--oxy-head);font-size:11.5px;letter-spacing:.14em;
  text-transform:uppercase;color:#fff;margin:0 0 12px;font-weight:800}
.oxy-foot ul{display:grid;gap:9px;font-size:14px}
.oxy-foot__tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:17px}
.oxy-foot__tags span{font-family:var(--oxy-head);font-size:11.5px;font-weight:600;
  border:1px solid #23443A;border-radius:6px;padding:5px 11px}
.oxy-foot__fine{border-top:1px solid #23443A;margin-top:30px;padding-top:21px;
  font-size:12.5px;line-height:1.72;color:#6E8981}
.oxy-foot__fine b{color:#A7C0B7}
.oxy-foot__end{margin-top:16px;padding-top:15px;border-top:1px solid #23443A;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px}

/* ---------- responsive ---------- */
.oxy-hero__in>*,.oxy-grid>*,.oxy-plans>*,.oxy-says>*,.oxy-pair>*,.oxy-vow__in>*,
.oxy-split>*{min-width:0}
@media(max-width:1000px){
  .oxy-split{grid-template-columns:1fr}
  .oxy-rail{position:static;order:-1}
  .oxy-offer{display:flex;align-items:center;gap:18px;text-align:left}
  .oxy-offer img{width:86px;margin:0}
  .oxy-offer__flag{margin-bottom:8px}
  .oxy-offer__body{flex:1}
  .oxy-hero__in,.oxy-pair,.oxy-vow__in{grid-template-columns:1fr}
  .oxy-plans,.oxy-says{grid-template-columns:1fr}
  .oxy-tog{display:flex}
  .oxy-menu{position:absolute;top:100%;left:0;right:0;background:var(--oxy-cream);
    flex-direction:column;align-items:stretch;gap:0;padding:6px 4vw 18px;display:none;
    border-bottom:1px solid var(--oxy-line)}
  .oxy-menu.is-open{display:flex}
  .oxy-menu a{padding:13px 0;border-bottom:1px solid var(--oxy-line)}
  .oxy-menu .oxy-cta{margin-top:13px;justify-content:center;border-bottom:0}
}
@media(max-width:620px){
  :root{--oxy-bar:66px}
  body{font-size:16.5px}
  .oxy-grid--2,.oxy-grid--3,.oxy-foot__g{grid-template-columns:1fr}
  .oxy-bar__t span{display:none}
  .oxy-ctas{flex-direction:column}
  .oxy-ctas .oxy-cta{width:100%}
  .oxy-offer{flex-direction:column;text-align:center}
  .oxy-offer img{width:130px}
}

/* ---------- motion: CSS only, JS adds .oxy-in ---------- */
[data-oxy-in]{opacity:0;transform:translateY(18px);
  transition:opacity .5s ease,transform .5s ease}
[data-oxy-in].oxy-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){[data-oxy-in]{opacity:1;transform:none}}