/* ============================================================
   BreathEaseX - Main Stylesheet
   Palette: Sky Blue / Teal / Fresh Green (respiratory/breathing theme)
   Signature element: flowing airflow ribbon (animated SVG path) +
   breath-capacity wave meter
   Type: 'Poppins' (display) + 'Nunito Sans' (body)
   ============================================================ */
:root{
  --sky:#2E9BD6;
  --sky-deep:#1D6FA5;
  --teal:#1FA98E;
  --teal-deep:#0F7A66;
  --green:#4CAF6D;
  --sky-soft:#E3F3FC;
  --ivory:#F5FAFB;
  --cream:#FCFEFE;
  --ink:#152A38;
  --text:#1C3140;
  --body:#54697A;
  --muted:#8CA0AE;
  --line:rgba(21,42,56,.10);
  --white:#ffffff;
  --font-display:'Poppins',system-ui,sans-serif;
  --font-body:'Nunito Sans',system-ui,sans-serif;
  --grad:linear-gradient(135deg,#1D6FA5 0%,#2E9BD6 50%,#1FA98E 100%);
  --grad-deep:linear-gradient(135deg,#0D3A54 0%,#155E7C 100%);
  --grad-dark:linear-gradient(160deg,#0A2A3D 0%,#0F4C63 100%);
  --shadow-sm:0 2px 10px rgba(21,42,56,.08);
  --shadow:0 8px 30px rgba(21,42,56,.16);
  --shadow-lg:0 24px 60px rgba(21,42,56,.26);
  --radius:16px;
  --radius-pill:999px;
  --transition:all .3s cubic-bezier(.4,0,.2,1);
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--text);background:var(--cream);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 1.4rem}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);line-height:1.18;font-weight:600}
h2.section-title{font-size:2.1rem;margin-bottom:.6rem}
.section-desc{color:var(--body);max-width:640px;margin:0 auto;font-size:1.05rem}
.section-head{text-align:center;margin-bottom:2.6rem}
.eyebrow{display:inline-block;font-weight:700;font-size:.76rem;letter-spacing:.11em;text-transform:uppercase;color:var(--teal-deep);margin-bottom:.6rem}
.bg-ice{background:var(--ivory)}
.bg-dark{background:var(--grad-dark);color:#fff}
.bg-dark h2,.bg-dark h3,.bg-dark h4{color:#fff}
.text-center{text-align:center}
section{padding:4.4rem 0;position:relative}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

.top-strip{background:var(--grad);color:#fff;font-weight:700;font-size:.82rem;text-align:center;padding:.55rem 1rem}
.top-strip span{margin:0 .9rem}

.trust-strip{background:var(--grad-deep);color:rgba(255,255,255,.8);font-size:.76rem;padding:.5rem 1rem;text-align:center;letter-spacing:.02em}
.trust-strip b{color:#fff}
.trust-strip span{margin:0 .6rem}

nav{position:sticky;top:0;z-index:50;background:rgba(252,254,254,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--container);margin:0 auto;padding:.85rem 1.4rem;display:flex;align-items:center;justify-content:space-between}
.logo{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--sky-deep)}
.logo span{color:var(--teal)}
.nav-links{display:flex;align-items:center;gap:1.6rem;font-size:.9rem;font-weight:600}
.nav-links a{color:var(--text);transition:var(--transition)}
.nav-links a:hover{color:var(--teal-deep)}
.nav-cta{background:var(--grad);color:#fff!important;padding:.6rem 1.3rem;border-radius:var(--radius-pill);font-weight:700}
.mobile-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--sky-deep)}

.btn{display:inline-block;padding:.9rem 1.8rem;border-radius:var(--radius-pill);font-weight:700;transition:var(--transition);cursor:pointer;border:none;font-size:.98rem}
.btn-primary{background:var(--grad);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-outline{background:transparent;border:2px solid var(--sky-deep);color:var(--sky-deep)}
.btn-outline:hover{background:var(--sky-deep);color:#fff}
.btn-lg{padding:1.1rem 2.2rem;font-size:1.05rem}
.bg-dark .btn-outline{border-color:#fff;color:#fff}
.bg-dark .btn-outline:hover{background:#fff;color:var(--sky-deep)}

.hsb-answer{background:var(--sky-soft);border-left:5px solid var(--teal);border-radius:10px;padding:1.1rem 1.4rem;margin:1.6rem 0;font-size:1rem;color:var(--text)}
.hsb-answer b{color:var(--sky-deep)}

/* ============================================================
   HERO — flowing airflow ribbon + breath-capacity wave
   ============================================================ */
.hero{padding:4rem 0 4.4rem;background:var(--grad-dark);color:#fff;overflow:hidden;position:relative}
.airflow-svg{position:absolute;inset:0;width:100%;height:100%;z-index:1;opacity:.5}
.airflow-path{fill:none;stroke:url(#airGrad);stroke-width:2;stroke-dasharray:14 10;animation:flowDash 3.2s linear infinite}
@keyframes flowDash{to{stroke-dashoffset:-240}}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:3.2rem;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-block;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);color:#DFF6EF;padding:.45rem 1.1rem;border-radius:var(--radius-pill);font-size:.85rem;font-weight:700;margin-bottom:1.3rem}
.hero h1{font-size:2.7rem;color:#fff;margin-bottom:1.1rem}
.hero h1 span{color:#7EE3C8}
.hero-intro{color:rgba(255,255,255,.8);font-size:1.06rem;margin-bottom:1.5rem;max-width:520px}
.hero-bullets{margin-bottom:1.6rem}
.hero-bullets li{padding-left:1.7rem;position:relative;margin-bottom:.6rem;color:rgba(255,255,255,.88);font-size:.95rem}
.hero-bullets li::before{content:'\2713';position:absolute;left:0;color:#7EE3C8;font-weight:700}
.hero-ctas{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1.3rem}
.hero-trust{display:flex;gap:1.5rem;flex-wrap:wrap;font-size:.8rem;color:rgba(255,255,255,.55)}

.hero-media{position:relative;height:420px;display:flex;align-items:center;justify-content:center}
.breath-ring{position:absolute;top:50%;left:50%;border-radius:50%;border:2px solid rgba(126,227,200,.35);animation:breathPulse 4s ease-in-out infinite}
.br-1{width:220px;height:220px;margin-top:-110px;margin-left:-110px}
.br-2{width:300px;height:300px;margin-top:-150px;margin-left:-150px;animation-delay:.6s}
.br-3{width:380px;height:380px;margin-top:-190px;margin-left:-190px;animation-delay:1.2s}
@keyframes breathPulse{0%,100%{transform:scale(.92);opacity:.25}50%{transform:scale(1.05);opacity:.7}}
.hero-product-img{position:relative;z-index:3;max-height:380px;width:auto;filter:drop-shadow(0 26px 44px rgba(0,0,0,.4))}
.glass-card{position:absolute;z-index:4;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:14px;padding:.9rem 1.2rem;box-shadow:0 10px 28px rgba(0,0,0,.3)}
.glass-card b{display:block;font-family:var(--font-display);font-size:1.3rem;color:#7EE3C8}
.glass-card span{font-size:.74rem;color:rgba(255,255,255,.65)}
.gc-1{top:6%;left:0%}
.gc-2{bottom:8%;right:-2%}

.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}
.why-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem 1.4rem;text-align:center;transition:var(--transition)}
.why-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.why-card img{height:56px;width:auto;margin:0 auto 1rem;object-fit:contain}
.why-card h4{font-size:1.02rem;margin-bottom:.5rem}
.why-card p{font-size:.88rem;color:var(--body)}

.whatis-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:3rem;align-items:center}
.whatis-media{text-align:center}
.whatis-media img{filter:drop-shadow(0 24px 44px rgba(21,42,56,.2));max-height:420px;margin:0 auto;border-radius:14px}
.whatis-text p{margin-bottom:1.05rem;color:var(--body)}
.trust-chips{display:flex;gap:.6rem;flex-wrap:wrap;margin:1.2rem 0}
.chip{background:var(--sky-soft);color:var(--sky-deep);padding:.4rem .9rem;border-radius:var(--radius-pill);font-size:.8rem;font-weight:700}

.transparency-box{max-width:900px;margin:0 auto;background:#fff;border:2px solid var(--teal);border-radius:var(--radius);padding:2rem}
.transparency-box h4{color:var(--sky-deep);margin-bottom:1rem;display:flex;align-items:center;gap:.6rem}
.transparency-list{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.transparency-list li{padding-left:1.6rem;position:relative;font-size:.92rem;color:var(--body)}
.transparency-list li::before{content:'\24D8';position:absolute;left:0;color:var(--teal-deep);font-weight:700}

.review-stats{display:flex;justify-content:center;gap:3rem;margin-bottom:2.6rem;flex-wrap:wrap}
.review-stats .num{font-family:var(--font-display);font-size:2.1rem;color:#7EE3C8}
.review-stats .lbl{font-size:.85rem;color:rgba(255,255,255,.65)}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.review-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:1.6rem}
.rc-head{display:flex;align-items:center;gap:.8rem;margin-bottom:.7rem}
.rc-head img{width:46px;height:46px;border-radius:50%;object-fit:cover}
.rc-name{font-weight:700;font-size:.95rem;color:#fff}
.rc-loc{font-size:.78rem;color:rgba(255,255,255,.55)}
.stars{color:#7EE3C8;margin-bottom:.6rem;font-size:.95rem}
.review-card blockquote{color:rgba(255,255,255,.85);font-size:.9rem;line-height:1.55}
.review-cta{text-align:center;margin-top:2.6rem}

.how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:2rem}
.how-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:1.8rem 1.5rem;position:relative}
.how-num{position:absolute;top:-14px;left:1.4rem;background:var(--grad);color:#fff;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--font-display)}
.how-card h4{color:#fff;margin:.6rem 0 .5rem;font-size:1.05rem}
.how-card p{color:rgba(255,255,255,.7);font-size:.9rem}

/* Breath capacity wave meter */
.wave-meter{max-width:640px;margin:2rem auto 0;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:1.6rem;text-align:center}
.wave-svg{width:100%;height:70px}
.wave-path{fill:none;stroke:#7EE3C8;stroke-width:2.5;stroke-dasharray:6 6;animation:waveFlow 2.4s linear infinite}
@keyframes waveFlow{to{stroke-dashoffset:-24}}

.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.price-card{background:#fff;border:2px solid var(--line);border-radius:var(--radius);padding:1.8rem;text-align:center;position:relative;transition:var(--transition)}
.price-card:hover{box-shadow:var(--shadow)}
.price-card.featured{border-color:var(--teal);transform:scale(1.045);box-shadow:var(--shadow-lg)}
.price-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:.4rem 1.1rem;border-radius:var(--radius-pill);white-space:nowrap}
.price-card h3{font-size:1.2rem;margin-bottom:.3rem}
.supply{font-size:.82rem;color:var(--muted);margin-bottom:1rem}
.price-img{max-height:150px;margin:0 auto 1rem}
.price-amount{font-family:var(--font-display);font-size:2.3rem;color:var(--sky-deep);margin-bottom:.2rem}
.price-amount small{font-size:1rem;font-weight:400;color:var(--muted)}
.price-total{font-size:.88rem;color:var(--body);margin-bottom:1.1rem}
.price-total s{color:var(--muted);margin-right:.4rem}
.buy-btn{width:100%;margin-bottom:.8rem}
.price-cards-img{max-width:180px;margin:0 auto}
.bonus-note{font-size:.78rem;color:var(--teal-deep);font-weight:700;margin-top:.4rem}

.icon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.icon-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.icon-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.icon-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.icon-card .accent{height:6px;background:var(--grad)}
.icon-card .icon-body{padding:1.6rem}
.icon-circle{width:52px;height:52px;border-radius:50%;background:var(--sky-soft);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:1rem}
.icon-card h4{font-size:1.02rem;margin-bottom:.5rem}
.icon-card p{font-size:.9rem;color:var(--body)}

.quality-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;margin-top:1.6rem}
.quality-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem 1.2rem;text-align:center;transition:var(--transition)}
.quality-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.quality-card img{height:64px;width:auto;margin:0 auto 1rem;object-fit:contain}
.quality-card h4{font-size:.98rem;margin-bottom:.4rem}
.quality-card p{font-size:.84rem;color:var(--body)}

.guarantee{display:grid;grid-template-columns:.4fr 1fr 1fr;gap:2.4rem;align-items:center}
.guarantee-svg{width:100%;max-width:190px;margin:0 auto}
.guarantee-points li{padding-left:1.6rem;position:relative;margin-bottom:.8rem;color:var(--body)}
.guarantee-points li::before{content:'\2713';position:absolute;left:0;color:var(--green);font-weight:700}

.stats-strip{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;margin-top:2rem;padding-top:2rem;border-top:1px solid var(--line)}
.stats-strip .num{font-family:var(--font-display);font-size:1.8rem;color:var(--sky-deep)}
.stats-strip .lbl{font-size:.82rem;color:var(--muted)}

.proscons-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
.proscons-card{border-radius:var(--radius);padding:1.8rem}
.proscons-card.pros{background:rgba(76,175,109,.08);border:1px solid rgba(76,175,109,.25)}
.proscons-card.cons{background:rgba(46,155,214,.06);border:1px solid rgba(46,155,214,.2)}
.proscons-card h4{margin-bottom:1rem}
.proscons-card li{padding-left:1.6rem;position:relative;margin-bottom:.6rem;font-size:.92rem;color:var(--body)}
.proscons-card.pros li::before{content:'\2713';position:absolute;left:0;color:var(--green);font-weight:700}
.proscons-card.cons li::before{content:'\2013';position:absolute;left:0;color:var(--sky-deep);font-weight:700}

.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line);padding:1.3rem 0;cursor:pointer}
.faq-q{font-weight:700;display:flex;justify-content:space-between;align-items:center;font-size:1rem}
.faq-q::after{content:'+';font-size:1.4rem;color:var(--teal-deep);transition:var(--transition)}
.faq-item.open .faq-q::after{content:'\2212'}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:400px;margin-top:.8rem}
.faq-a p{color:var(--body);font-size:.94rem}
.faq-cta{text-align:center;margin-top:2.4rem}

.ref-list{max-width:760px;margin:0 auto;list-style:none}
.ref-list li{padding:.7rem 0;border-bottom:1px solid var(--line);font-size:.9rem;color:var(--body)}
.ref-list a{color:var(--sky-deep);font-weight:700}

.security-box{max-width:620px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:2rem}

.blog-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.blog-cat-col h3{font-size:1.02rem;margin-bottom:.9rem;color:var(--sky-deep)}
.blog-cat-col ul li{margin-bottom:.6rem}
.blog-cat-col a{font-size:.88rem;color:var(--body)}
.blog-cat-col a:hover{color:var(--teal-deep)}
.blog-browse{text-align:center;margin-top:2rem}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem;margin-top:2rem}
.blog-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.blog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.thumb{height:140px;background:var(--grad-deep);color:rgba(255,255,255,.85);display:flex;align-items:center;justify-content:center;text-align:center;padding:1rem;font-family:var(--font-display);font-size:1.02rem}
.thumb.alt{background:var(--grad)}
.blog-inner{padding:1.4rem}
.blog-cat{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--teal-deep)}
.blog-inner h3{font-size:1rem;margin:.5rem 0}
.excerpt{font-size:.86rem;color:var(--body);margin-bottom:.8rem}
.read-more{font-weight:700;font-size:.84rem;color:var(--sky-deep)}

.final-cta{background:var(--grad-dark);color:#fff}
.final-grid{display:grid;grid-template-columns:.5fr 1fr;gap:3rem;align-items:center}
.final-badges{display:flex;gap:1.2rem;margin:1.4rem 0;flex-wrap:wrap}
.final-badges .fb{text-align:center}
.final-badges .fb b{display:block;font-family:var(--font-display);color:#7EE3C8;font-size:1.1rem}
.final-badges .fb span{font-size:.78rem;color:rgba(255,255,255,.6)}
.final-price{margin-bottom:1.4rem}
.final-price .reg{text-decoration:line-through;color:rgba(255,255,255,.5);margin-right:.8rem}
.final-price .now{font-family:var(--font-display);font-size:1.6rem;color:#7EE3C8}

.article-hero{background:var(--grad-dark);color:#fff;padding:2.6rem 0 2.2rem}
.breadcrumb{font-size:.82rem;color:rgba(255,255,255,.55);margin-bottom:.8rem}
.breadcrumb a{color:rgba(255,255,255,.8)}
.article-hero h1{color:#fff;font-size:2rem}
.article-content{max-width:760px;margin:0 auto;padding:3rem 1.4rem}
.article-content h2{font-size:1.45rem;margin:2rem 0 .9rem}
.article-content p{color:var(--body);margin-bottom:1.05rem;font-size:1rem}
.article-content ul,.article-content ol{margin:0 0 1.05rem 1.4rem;color:var(--body)}
.article-content li{margin-bottom:.5rem}
.article-content blockquote{border-left:4px solid var(--teal);padding:.4rem 0 .4rem 1.2rem;margin:1.4rem 0;font-style:italic;color:var(--sky-deep)}
.article-content a{color:var(--sky-deep);font-weight:700;text-decoration:underline}
.article-cta{background:var(--ivory);border-radius:var(--radius);padding:1.8rem;text-align:center;margin:2.2rem 0}
.cta-btn{display:inline-block;margin-top:.9rem;background:var(--grad);color:#fff;padding:.8rem 1.7rem;border-radius:var(--radius-pill);font-weight:700}
.related-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;margin-top:2rem}
.related-box h4{font-size:1rem;margin-bottom:.8rem}
.related-box a{color:var(--sky-deep);font-weight:700;font-size:.9rem}
.related-box li{margin-bottom:.5rem}
.author-byline{display:flex;align-items:center;gap:.7rem;margin:1.4rem 0;padding:1rem;background:var(--ivory);border-radius:10px;font-size:.85rem}
.author-byline a{font-weight:700;color:var(--sky-deep)}
.ac-figure{text-align:center;margin:1.8rem 0}
.ac-figure img{max-height:320px;margin:0 auto;display:inline-block;border-radius:10px}

.blog-body{max-width:var(--container);margin:0 auto;padding:3rem 1.4rem}
.blog-intro{max-width:700px;margin:0 auto 2.6rem;text-align:center;color:var(--body)}
.blog-section-title{font-size:1.5rem;margin:2.6rem 0 1.2rem;text-align:center}

footer{background:var(--grad-deep);color:rgba(255,255,255,.75);padding:3.6rem 0 1.6rem}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.4rem;margin-bottom:2.2rem}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:1rem}
.footer-col ul li{margin-bottom:.55rem}
.footer-col a{font-size:.85rem;color:rgba(255,255,255,.65)}
.footer-col a:hover{color:#7EE3C8}
.footer-col p{font-size:.85rem;color:rgba(255,255,255,.58)}
.footer-badges{display:flex;flex-wrap:wrap;gap:.7rem;padding:1.6rem 0;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:1.6rem}
.footer-badge{background:rgba(255,255,255,.08);padding:.4rem .9rem;border-radius:var(--radius-pill);font-size:.75rem}
.footer-disclosure{margin-bottom:1.6rem}
.footer-disclosure h5{color:#fff;font-size:.8rem;margin-bottom:.4rem;margin-top:1rem}
.footer-disclosure p{font-size:.77rem;color:rgba(255,255,255,.55);line-height:1.6;margin-bottom:.6rem}
.footer-legal{font-size:.78rem;color:rgba(255,255,255,.55);margin-bottom:1rem}
.footer-legal a{color:rgba(255,255,255,.75)}
.copyright{font-size:.78rem;color:rgba(255,255,255,.45)}

.sticky-bar{position:fixed;bottom:0;left:0;right:0;background:var(--grad-deep);color:#fff;padding:.8rem 1.4rem;display:none;align-items:center;justify-content:space-between;z-index:60;box-shadow:0 -6px 20px rgba(0,0,0,.25)}
.sticky-bar-text{font-size:.86rem}
.sticky-bar-text small{display:block;color:rgba(255,255,255,.55);font-size:.72rem}
#back-to-top{position:fixed;bottom:90px;right:20px;width:44px;height:44px;background:var(--grad);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;cursor:pointer;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:var(--transition);z-index:60}
#back-to-top.show{opacity:1;pointer-events:auto}

@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:2.2rem}
  .hero-media{order:-1;height:320px}
  .br-1{width:170px;height:170px;margin-top:-85px;margin-left:-85px}
  .br-2{width:230px;height:230px;margin-top:-115px;margin-left:-115px}
  .br-3{width:290px;height:290px;margin-top:-145px;margin-left:-145px}
  .hero-product-img{max-height:270px}
  .hero h1{font-size:2.05rem}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .whatis-grid{grid-template-columns:1fr;gap:2rem}
  .whatis-media{order:-1}
  .transparency-list{grid-template-columns:1fr}
  .how-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr;max-width:480px;margin-left:auto;margin-right:auto}
  .price-grid{grid-template-columns:1fr;max-width:420px;margin-left:auto;margin-right:auto}
  .price-card.featured{transform:none}
  .icon-grid,.icon-grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .quality-grid{grid-template-columns:repeat(2,1fr)}
  .guarantee{grid-template-columns:1fr;text-align:center}
  .proscons-grid{grid-template-columns:1fr}
  .blog-cats{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr;max-width:480px;margin-left:auto;margin-right:auto}
  .footer-top{grid-template-columns:1fr 1fr;gap:2rem}
  .final-grid{grid-template-columns:1fr;text-align:center}
  .nav-links{display:none}
  .mobile-toggle{display:block}
}
@media (max-width:600px){
  .why-grid,.icon-grid,.icon-grid.cols-4,.quality-grid{grid-template-columns:1fr}
  .hero h1{font-size:1.65rem}
  h2.section-title{font-size:1.5rem}
  .footer-top{grid-template-columns:1fr}
  .review-stats{gap:1.6rem}
  .sticky-bar{display:flex}
  section{padding:2.8rem 0}
}