/* ===========================================================
   Comosystems Australia — dark / emerald storefront
   Matches the approved mockup: near-black backgrounds, emerald
   EMF energy accents, rounded headings, lifestyle photography.
   =========================================================== */
:root{
  --bg:#080C0D;
  --bg-2:#0B1113;
  --bg-3:#0E1618;
  --card:#111A1C;
  --card-2:#0F1719;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --emerald:#2FE0A6;
  --emerald-bright:#5FF0C0;
  --emerald-600:#12B886;
  --emerald-glow:rgba(47,224,166,.35);
  --red:#FF5A5A;
  --ink:#EAF4F0;
  --muted:#8FA6A0;
  --muted-2:#6C837D;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 20px 50px rgba(0,0,0,.45);
  --maxw:1200px;
  --font:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--emerald);text-decoration:none}
h1,h2,h3{line-height:1.12;margin:0 0 .5em;color:#fff;letter-spacing:-.5px;font-weight:700}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.center{text-align:center}
.em{color:var(--emerald)}
.red{color:var(--red)}
.eyebrow{text-transform:uppercase;letter-spacing:4px;font-size:.72rem;font-weight:700;color:var(--emerald);margin-bottom:.9rem;display:flex;align-items:center;gap:8px}
.eyebrow.center{justify-content:center}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--emerald);display:inline-block;opacity:.7}
.eyebrow.center::after{content:"";width:22px;height:2px;background:var(--emerald);display:inline-block;opacity:.7}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:.95rem;cursor:pointer;
  padding:.85rem 1.6rem;border-radius:999px;border:1.5px solid transparent;transition:.2s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--emerald-bright),var(--emerald-600));color:#05201a;box-shadow:0 8px 24px var(--emerald-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px var(--emerald-glow)}
.btn-ghost{border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--emerald);color:var(--emerald)}

/* ---------- header ---------- */
.topbar{background:#05090A;color:var(--muted);font-size:.8rem;border-bottom:1px solid var(--line)}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 24px;flex-wrap:wrap}
.topbar a{color:var(--muted)}
.topbar a:hover{color:var(--emerald)}
.topbar .tb-links{display:flex;gap:18px;flex-wrap:wrap}
header.site{position:sticky;top:0;z-index:50;background:rgba(8,12,13,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 24px;max-width:var(--maxw);margin:0 auto}
.nav .logo img{height:44px}
.nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0}
.nav ul a{color:var(--muted);font-weight:500;font-size:.92rem;padding:6px 0;position:relative}
.nav ul a:hover,.nav ul a.active{color:var(--ink)}
.nav ul a.active::after,.nav ul a:hover::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--emerald)}
.nav-cta{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--emerald);cursor:pointer}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:#05090A;min-height:660px;display:flex;align-items:center}
.hero::before{content:"";position:absolute;inset:0;
  background:url('../assets/mockup/hero-bg.jpg') center center/cover no-repeat}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,9,10,.97) 0%,rgba(5,9,10,.9) 26%,rgba(5,9,10,.55) 50%,rgba(5,9,10,.2) 72%,rgba(5,9,10,.5) 100%)}
.hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:96px 24px 84px;width:100%}
.hero-inner .content{max-width:560px}
.hero h1,.hero p.lead{text-shadow:0 2px 24px rgba(0,0,0,.65)}
.badge-pill{display:inline-flex;align-items:center;gap:8px;background:rgba(47,224,166,.12);border:1px solid rgba(47,224,166,.35);
  color:var(--emerald);font-size:.72rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;padding:7px 14px;border-radius:999px;margin-bottom:22px}
.hero h1{margin-bottom:1rem}
.hero h1 .em{color:var(--emerald)}
.hero p.lead{color:#c7d6d1;font-size:1.14rem;max-width:33rem}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:1.8rem}

/* stat strip */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:26px 24px}
.stat{display:flex;gap:12px;align-items:center}
.stat .si{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;flex:none;
  background:rgba(47,224,166,.1);border:1px solid rgba(47,224,166,.25);color:var(--emerald)}
.stat b{display:block;color:#fff;font-size:1.02rem;line-height:1.2}
.stat span{font-size:.8rem;color:var(--muted)}

/* ---------- sections ---------- */
section{padding:80px 0}
.bg-2{background:var(--bg-2)}
.bg-3{background:var(--bg-3)}
.section-head{max-width:720px;margin:0 auto 52px;text-align:center}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}

/* framed media */
.media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.media img{width:100%;display:block}
.media .float-badge{position:absolute;background:rgba(8,12,13,.82);backdrop-filter:blur(6px);border:1px solid var(--line-strong);
  border-radius:12px;padding:10px 14px;font-size:.8rem}
.media .float-badge b{color:#fff;font-size:1.05rem;display:block}
.media .float-badge span{color:var(--muted)}
.badge-br{right:16px;bottom:16px}
.badge-tl{left:16px;top:16px}

/* checklist */
.checklist{list-style:none;padding:0;margin:1.2rem 0 1.6rem}
.checklist li{display:flex;gap:12px;align-items:flex-start;padding:7px 0;color:#cfe0da}
.checklist li::before{content:"✓";color:var(--emerald);font-weight:800;background:rgba(47,224,166,.12);
  width:22px;height:22px;border-radius:50%;display:grid;place-items:center;flex:none;font-size:.8rem;margin-top:2px}

/* ---------- product cards ---------- */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:.25s}
.card:hover{transform:translateY(-5px);border-color:rgba(47,224,166,.4);box-shadow:var(--shadow)}
.card .thumb{aspect-ratio:16/11;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.card:hover .thumb img{transform:scale(1.05)}
.card .body{padding:20px 22px 22px}
.card h3{font-size:1.2rem;margin:0 0 3px;color:#fff}
.card .tag{font-size:.88rem;color:var(--muted);margin-bottom:14px}
.price-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:6px}
.price{font-size:1.35rem;font-weight:700;color:var(--emerald)}
.add-btn{width:42px;height:42px;border-radius:50%;border:1px solid var(--line-strong);background:transparent;color:var(--emerald);
  font-size:1.3rem;cursor:pointer;transition:.2s;display:grid;place-items:center;line-height:1}
.add-btn:hover{background:var(--emerald);color:#05201a;border-color:var(--emerald)}
.enquire-btn{border:1.5px solid var(--emerald);color:var(--emerald);background:transparent;font-weight:600;font-size:.92rem;
  padding:.52rem 1.15rem;border-radius:999px;transition:.2s;white-space:nowrap;text-decoration:none;display:inline-block}
.enquire-btn:hover{background:var(--emerald);color:#05201a}
.buy-btn{border:1.5px solid var(--emerald);background:linear-gradient(135deg,var(--emerald-bright),var(--emerald-600));color:#05201a;
  font-weight:700;font-size:.92rem;padding:.54rem 1.2rem;border-radius:999px;transition:.2s;white-space:nowrap;text-decoration:none;
  display:inline-block;box-shadow:0 6px 18px var(--emerald-glow)}
.buy-btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px var(--emerald-glow)}

/* horizontal image scroller (awareness gallery) */
.scroller{position:relative;max-width:1120px;margin:0 auto;padding:0 20px}
.scroller-track{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;
  padding:6px 4px 20px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}
.scroller-track::-webkit-scrollbar{height:8px}
.scroller-track::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:999px}
.scroller .slide{flex:0 0 auto;width:min(440px,82vw);scroll-snap-align:center;margin:0;
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--card)}
.scroller .slide img{width:100%;height:auto;display:block}
.scroller-nav{position:absolute;top:calc(50% + 4px);transform:translateY(-50%);width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line-strong);background:rgba(8,12,13,.72);backdrop-filter:blur(6px);color:var(--ink);
  font-size:1.7rem;line-height:1;cursor:pointer;z-index:3;display:grid;place-items:center;transition:.2s}
.scroller-nav:hover{border-color:var(--emerald);color:var(--emerald)}
.scroller-nav.prev{left:2px}
.scroller-nav.next{right:2px}
@media(max-width:560px){ .scroller-nav{display:none} }
.bulk-note{margin:12px 0 0;padding-top:12px;border-top:1px solid var(--line);font-size:.78rem;color:var(--muted)}
.bulk-note a{color:var(--emerald);font-weight:600;text-decoration:none}
.bulk-note a:hover{text-decoration:underline}
.card .thumb{display:block;border:0}
.card h3 a{color:#fff}
.card h3 a:hover{color:var(--emerald)}
.details-link{display:inline-block;margin-top:10px;font-size:.85rem;font-weight:600;color:var(--emerald)}
.details-link:hover{text-decoration:underline}

/* ===========================================================
   Product detail page (product.html)
   =========================================================== */
.pd-page{padding:34px 0 60px}
.crumbs{font-size:.82rem;color:var(--muted-2);margin-bottom:26px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--emerald)}
.crumbs span{margin:0 8px;opacity:.5}
.crumbs em{color:var(--ink);font-style:normal}

.pd-top{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}

/* gallery */
.pd-gallery{position:sticky;top:90px}
.pg-main{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);
  background:#fff;aspect-ratio:4/3;display:grid;place-items:center}
.pg-main img{width:100%;height:100%;object-fit:contain}
.pg-thumbs{display:flex;gap:12px;margin-top:14px;flex-wrap:wrap}
.pg-thumb{width:76px;height:76px;border-radius:12px;overflow:hidden;border:1.5px solid var(--line-strong);
  background:#fff;cursor:pointer;padding:0;transition:.2s}
.pg-thumb img{width:100%;height:100%;object-fit:cover}
.pg-thumb:hover{border-color:var(--emerald)}
.pg-thumb.active{border-color:var(--emerald);box-shadow:0 0 0 2px var(--emerald-glow)}

/* info column */
.pd-info h1{margin:.2rem 0 .3rem;font-size:clamp(1.9rem,3.6vw,2.7rem)}
.pd-tag{color:var(--muted);font-size:1.02rem;margin:0 0 1rem}
.pd-lead{color:#cfe0da;font-size:1.08rem;margin-bottom:1.4rem}
.pd-buy{display:flex;align-items:baseline;gap:10px;margin-bottom:18px}
.pd-price{font-size:2rem;font-weight:800;color:var(--emerald)}
.pd-gst{font-size:.82rem;color:var(--muted)}
.btn-lg{padding:1rem 1.8rem;font-size:1rem}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.pd-trust{list-style:none;padding:0;margin:0 0 16px}
.pd-trust li{color:#cfe0da;font-size:.92rem;padding:5px 0}

/* lower detail area */
.pd-detail{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;margin-top:56px;align-items:start}
.pd-block{margin-bottom:34px}
.pd-block h2{font-size:1.4rem;margin-bottom:.7rem}
.pd-block p{color:#cfe0da}
.pd-side{position:sticky;top:90px;display:flex;flex-direction:column;gap:18px}
.spec-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px}
.spec-card h3{font-size:1.1rem;color:#fff;margin-bottom:12px}
.spec-table{width:100%;border-collapse:collapse;font-size:.9rem}
.spec-table th{text-align:left;color:var(--muted);font-weight:600;vertical-align:top;padding:9px 12px 9px 0;
  width:38%;border-bottom:1px solid var(--line)}
.spec-table td{color:#dbe8e3;padding:9px 0;border-bottom:1px solid var(--line)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.note-card p{color:var(--muted);font-size:.9rem;margin:0}

@media(max-width:920px){
  .pd-top{grid-template-columns:1fr;gap:30px}
  .pd-gallery{position:static}
  .pd-detail{grid-template-columns:1fr;gap:8px}
  .pd-side{position:static}
}
@media(max-width:560px){
  .pd-actions .btn-lg{flex:1 1 100%;justify-content:center}
}

/* feature grid (science / faq) */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.feature .ico{width:50px;height:50px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;font-size:1.3rem;
  background:rgba(47,224,166,.1);border:1px solid rgba(47,224,166,.25);color:var(--emerald)}
.feature h3{font-size:1.12rem;color:#fff}

/* testimonial */
.testimonial{text-align:center;max-width:820px;margin:0 auto}
.testimonial blockquote{font-size:clamp(1.25rem,2.4vw,1.7rem);color:#eaf4f0;font-weight:500;line-height:1.5;margin:0 0 1.4rem;letter-spacing:-.3px}
.testimonial .who{color:#fff;font-weight:700}
.testimonial .role{color:var(--muted);font-size:.9rem}

/* placeholder */
.placeholder{border:1.5px dashed rgba(47,224,166,.4);border-radius:var(--radius-lg);padding:52px;text-align:center;background:var(--card-2)}

/* CTA band */
.cta-band{background:linear-gradient(135deg,#0a2b22,#071a15);border:1px solid rgba(47,224,166,.25);
  border-radius:var(--radius-lg);padding:56px;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 200px at 50% -20%,rgba(47,224,166,.18),transparent)}
.cta-band>*{position:relative}
.cta-band p{color:#b8ccc5;max-width:560px;margin:0 auto 1.4rem}

/* pills */
.pill-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.pill{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:.85rem;font-weight:600;color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px}
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:16px}
.contact-card a{font-weight:600}
form label{display:block;font-weight:600;font-size:.88rem;margin:12px 0 6px;color:#cfe0da}
form input,form textarea{width:100%;padding:12px 14px;border:1px solid var(--line-strong);border-radius:10px;font:inherit;
  background:var(--bg);color:var(--ink)}
form input:focus,form textarea:focus{outline:2px solid var(--emerald);border-color:transparent}

/* footer */
footer.site{background:#05090A;border-top:1px solid var(--line);padding:56px 0 26px}
footer.site .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
footer.site h4{color:#fff;font-size:.95rem;margin-bottom:14px}
footer.site a{color:var(--muted);display:block;padding:4px 0}
footer.site a:hover{color:var(--emerald)}
.footer-logo{height:50px;margin-bottom:16px}
.foot-p{color:var(--muted);font-size:.9rem}
.foot-bottom{border-top:1px solid var(--line);margin-top:36px;padding-top:18px;font-size:.8rem;color:var(--muted-2);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.disclaimer{font-size:.76rem;color:var(--muted-2);margin-top:12px;max-width:100%}

/* toast */
#cart-note{position:fixed;bottom:20px;right:20px;background:var(--emerald);color:#05201a;font-weight:600;
  padding:14px 18px;border-radius:12px;box-shadow:var(--shadow);display:none;z-index:100;max-width:320px}

/* ---------- responsive ---------- */
@media(max-width:920px){
  .split,.contact-grid{grid-template-columns:1fr}
  .products,.grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  footer.site .cols{grid-template-columns:1fr 1fr}
  .nav ul{position:fixed;inset:60px 0 auto 0;background:var(--bg-2);flex-direction:column;gap:0;padding:8px 24px;
    border-bottom:1px solid var(--line);transform:translateY(-150%);transition:.25s}
  .nav ul.open{transform:translateY(0)}
  .nav ul a{display:block;padding:13px 0;border-bottom:1px solid var(--line)}
  .menu-toggle{display:block}
}
@media(max-width:560px){
  .products,.grid-3,.grid-4{grid-template-columns:1fr}
  .products{grid-template-columns:1fr 1fr}
  .stats .container{grid-template-columns:1fr 1fr}
  section{padding:56px 0}
  .cta-band,.placeholder{padding:34px 22px}
  .hero-inner{padding:64px 24px 56px}
}