/* ===================================================================
   RespiFlo — main.css  (ALL shared component styles)
   Palette: charcoal/black bottle aesthetic + warm gold + clinical teal
   =================================================================== */

:root{
  --ink:#13131a;
  --ink-soft:#1d1d27;
  --paper:#fbfaf7;
  --paper-warm:#f4f0e8;
  --gold:#c8962d;
  --gold-deep:#a87a1d;
  --gold-soft:#e7c987;
  --teal:#2f8f86;
  --teal-deep:#206b64;
  --text:#2b2b30;
  --text-soft:#5c5c66;
  --line:#e6e1d6;
  --danger:#c0492f;
  --ok:#2f8f86;
  --shadow:0 14px 40px -18px rgba(19,19,26,.35);
  --shadow-lg:0 30px 70px -28px rgba(19,19,26,.5);
  --radius:16px;
  --radius-lg:24px;
  --maxw:1180px;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Outfit","Helvetica Neue",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);
  color:var(--text);
  background:var(--paper);
  line-height:1.7;
  font-size:17px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{font-family:var(--serif);line-height:1.12;color:var(--ink);font-weight:600}
em{font-style:italic;color:var(--gold-deep)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:78px 0}
.eyebrow{
  font-family:var(--sans);font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;font-size:.74rem;color:var(--gold-deep);
  margin-bottom:14px;display:inline-block;
}

/* ---------- Announcement bar ---------- */
.announce-bar{
  background:linear-gradient(90deg,var(--ink),var(--ink-soft));
  color:#fff;text-align:center;font-size:.86rem;font-weight:500;
  padding:9px 16px;position:sticky;top:0;z-index:60;letter-spacing:.01em;
}
.announce-bar a{color:var(--gold-soft);font-weight:700;text-decoration:underline;text-underline-offset:2px}

/* ---------- Header ---------- */
.header{
  position:sticky;top:0;z-index:55;background:rgba(251,250,247,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;max-width:var(--maxw);margin:0 auto;padding:12px 22px;
}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:1.4rem;color:var(--ink)}
.logo img{width:34px;height:34px;border-radius:50%}
.logo span em{color:var(--gold-deep);font-style:normal}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none}
.nav-links a{font-weight:500;font-size:.96rem;color:var(--text-soft);transition:color .2s}
.nav-links a:hover{color:var(--gold-deep)}
.mobile-menu-btn{display:none;background:none;border:0;cursor:pointer;padding:6px}
.mobile-menu-btn span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}

/* ---------- Buttons ---------- */
.btn-cta,.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:linear-gradient(180deg,var(--gold),var(--gold-deep));
  color:#fff;font-family:var(--sans);font-weight:700;font-size:1rem;
  padding:14px 28px;border-radius:999px;border:0;cursor:pointer;
  box-shadow:0 10px 26px -10px rgba(200,150,45,.7);
  transition:transform .2s,box-shadow .2s;letter-spacing:.01em;white-space:nowrap;
}
.btn-cta:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -12px rgba(200,150,45,.8)}
.btn-cta.sm{padding:10px 20px;font-size:.9rem}
.btn-lg{padding:18px 42px;font-size:1.12rem}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;background:transparent;
  border:1.5px solid var(--gold);color:var(--gold-deep);font-weight:600;
  padding:13px 26px;border-radius:999px;transition:.2s;
}
.btn-ghost:hover{background:var(--gold);color:#fff}

/* ---------- Footer (5-column) ---------- */
.footer{background:var(--ink);color:#c9c9d2;padding:62px 0 26px;font-size:.92rem}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.3fr 1fr 1.1fr;
  gap:34px;max-width:var(--maxw);margin:0 auto;padding:0 22px;
}
.footer h4{color:#fff;font-family:var(--sans);font-weight:700;font-size:.82rem;
  letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.footer .f-logo{display:flex;align-items:center;gap:9px;font-family:var(--serif);
  font-size:1.3rem;color:#fff;margin-bottom:12px;font-weight:700}
.footer .f-logo img{width:30px;height:30px;border-radius:50%}
.footer .f-logo em{color:var(--gold-soft);font-style:normal}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.footer ul a{color:#a9a9b4;transition:color .2s}
.footer ul a:hover{color:var(--gold-soft)}
.footer .f-desc{color:#9a9aa5;line-height:1.6;max-width:240px}
.footer .f-contact a{display:block;color:#a9a9b4;margin-bottom:7px}
.footer-bottom{max-width:var(--maxw);margin:42px auto 0;padding:24px 22px 0;
  border-top:1px solid #2a2a35;color:#7f7f8a;font-size:.8rem;line-height:1.7}
.footer-bottom .copy{margin-top:14px;color:#9a9aa5}

/* ---------- Shared content blocks ---------- */
.ai-answer{
  background:linear-gradient(180deg,#eef6f5,#e4f0ee);
  border-left:4px solid var(--teal);border-radius:14px;
  padding:22px 26px;margin:26px 0;box-shadow:var(--shadow);
}
.ai-answer strong{display:block;font-family:var(--serif);font-size:1.16rem;color:var(--teal-deep);margin-bottom:8px}
.ai-answer p{color:#34504c;margin:0}

.section-head{text-align:center;max-width:720px;margin:0 auto 46px}
.section-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);margin-bottom:14px}
.section-head p{color:var(--text-soft)}

.check{flex:none;width:22px;height:22px;margin-top:3px}

/* ---------- Cards generic ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}

/* ---------- Mobile sticky CTA ---------- */
.mobile-sticky-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(19,19,26,.97);backdrop-filter:blur(8px);
  padding:11px 14px;border-top:1px solid #2a2a35;
}
.mobile-sticky-cta .btn-cta{width:100%}

/* ---------- Social proof popup ---------- */
.social-pop{
  position:fixed;left:18px;bottom:18px;z-index:65;max-width:320px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-lg);padding:14px 16px 14px 14px;
  display:flex;gap:12px;align-items:center;
  transform:translateX(-130%);opacity:0;transition:transform .45s ease,opacity .45s ease;
}
.social-pop.show{transform:translateX(0);opacity:1}
.social-pop img{width:46px;height:46px;border-radius:10px;object-fit:cover;flex:none}
.social-pop .sp-body{font-size:.84rem;line-height:1.35;color:var(--text)}
.social-pop .sp-body b{color:var(--ink)}
.social-pop .sp-time{color:var(--text-soft);font-size:.74rem;margin-top:3px}
.social-pop .sp-close{position:absolute;top:6px;right:9px;background:none;border:0;
  font-size:1.1rem;color:#b3b3bd;cursor:pointer;line-height:1}
.social-pop .sp-badge{font-size:.66rem;color:var(--ok);font-weight:700;text-transform:uppercase;letter-spacing:.05em}

/* ---------- Exit intent ---------- */
.exit-overlay{
  position:fixed;inset:0;z-index:90;background:rgba(19,19,26,.72);
  display:none;align-items:center;justify-content:center;padding:20px;
}
.exit-overlay.show{display:flex}
.exit-card{
  background:var(--paper);border-radius:var(--radius-lg);max-width:430px;width:100%;
  padding:40px 34px;text-align:center;position:relative;box-shadow:var(--shadow-lg);
  border-top:6px solid var(--gold);
}
.exit-card h3{font-size:1.9rem;margin-bottom:10px}
.exit-card p{color:var(--text-soft);margin-bottom:22px}
.exit-card .exit-close{position:absolute;top:14px;right:18px;background:none;border:0;
  font-size:1.5rem;color:#b3b3bd;cursor:pointer}
.exit-card .exit-code{font-family:var(--serif);font-size:1.6rem;color:var(--gold-deep);
  letter-spacing:.1em;background:#fff;border:2px dashed var(--gold);border-radius:12px;
  padding:12px;margin-bottom:20px;font-weight:700}

/* ---------- Legal / article pages ---------- */
.page-hero{background:linear-gradient(180deg,var(--ink),var(--ink-soft));color:#fff;
  padding:64px 0 54px;text-align:center}
.page-hero h1{color:#fff;font-size:clamp(1.9rem,4vw,2.7rem)}
.page-hero p{color:#b6b6c1;max-width:640px;margin:14px auto 0}
.prose{max-width:820px;margin:0 auto;padding:54px 22px}
.prose h2{font-size:1.6rem;margin:34px 0 12px}
.prose h3{font-size:1.2rem;margin:24px 0 8px}
.prose p{margin-bottom:16px;color:var(--text)}
.prose ul,.prose ol{margin:0 0 18px 22px}
.prose li{margin-bottom:8px}
.prose a{color:var(--gold-deep);text-decoration:underline;text-underline-offset:2px}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;background:var(--paper);
    flex-direction:column;gap:0;padding:8px 0;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);display:none;
  }
  .nav-links.open{display:flex}
  .nav-links li{width:100%;text-align:center}
  .nav-links a{display:block;padding:13px 0;border-top:1px solid var(--line)}
  .nav-wrap .btn-cta{display:none}
  .mobile-menu-btn{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .mobile-sticky-cta{display:block}
  .social-pop{max-width:none;left:10px;right:10px}
  body{padding-bottom:64px}
}
@media(max-width:560px){
  .section{padding:54px 0}
  .footer-grid{grid-template-columns:1fr}
  .prose{padding:36px 18px}
}