/* ============================================================
   Jinlong Sciences — stylesheet
   Edit colors/fonts in :root, sections are grouped below.
   ============================================================ */
:root{
  --bg:#16201a; --green:#26332b; --green-2:#2c3a30; --card:#39493e; --card-2:#41524494;
  --cream:#ebe4cc; --cream-d:#d8c99e; --ink:#1b1b1b; --white:#fff;
  --muted:rgba(255,255,255,.64); --line:rgba(255,255,255,.14);
  --maxw:1480px; --pad:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter Tight',system-ui,sans-serif;background:var(--bg);color:var(--white);
  font-size:18px;line-height:1.3;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.serif{font-family:'Playfair Display',serif;font-style:italic;color:var(--cream);font-weight:500}
.label{font-size:15px;letter-spacing:.04em;color:var(--cream-d);text-transform:uppercase}
h1,h2{font-weight:500;letter-spacing:-.02em;line-height:1.0}
h1{font-size:clamp(44px,6.2vw,90px)}
h2{font-size:clamp(34px,5vw,75px)}
h3{font-size:25px;font-weight:400;letter-spacing:-.02em}
.btn{display:inline-flex;align-items:center;gap:14px;background:var(--ink);color:#fff;
  border-radius:10px;padding:13px 13px 13px 22px;font-size:18px;cursor:pointer;border:none;
  transition:.2s;white-space:nowrap}
.btn:hover{background:#000}
.btn .ic{width:34px;height:34px;border-radius:7px;background:rgba(255,255,255,.1);display:grid;place-items:center}
.btn-cream{background:var(--cream);color:var(--ink)}
.btn-cream:hover{background:#fff}
.btn-cream .ic{background:rgba(0,0,0,.08)}

/* ---------- HEADER ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:50;transition:.3s}
header.scrolled{background:rgba(22,32,26,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:112px}
.logo{height:64px;width:auto}
.menu{display:flex;align-items:center;gap:46px;font-size:18px}
.menu a{color:#fff;opacity:.92;transition:.2s}
.menu a:hover{color:var(--cream)}
.menu .more{position:relative;display:flex;align-items:center;gap:6px;cursor:pointer;padding:12px 0}
.menu .more::after{content:"";position:absolute;top:100%;left:-12px;right:-12px;height:16px} /* hover bridge */
.submenu{position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%);background:rgba(22,32,26,.97);
  border:1px solid var(--line);border-radius:12px;padding:8px;min-width:170px;display:none;flex-direction:column;gap:2px;z-index:60}
.menu .more:hover .submenu,.menu .more.open .submenu{display:flex}
.submenu a{padding:9px 14px;border-radius:8px;font-size:16px}
.submenu a:hover{background:rgba(255,255,255,.06)}
.hdr-right{display:flex;align-items:center;gap:12px}
.icon-btn{width:54px;height:54px;border-radius:12px;background:var(--cream);color:var(--ink);display:grid;place-items:center;transition:.2s}
.icon-btn:hover{background:#fff}
.burger{display:none;background:none;border:none;color:#fff;cursor:pointer}
.mobile-menu{display:none;position:fixed;inset:84px 0 auto 0;z-index:49;background:rgba(22,32,26,.98);
  flex-direction:column;padding:20px 30px;gap:18px;border-bottom:1px solid var(--line)}
.mobile-menu a{font-size:20px}

/* ---------- HERO (uses images/header.jpeg) ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;
  background:linear-gradient(90deg,rgba(18,26,21,.92) 0%,rgba(18,26,21,.6) 36%,rgba(18,26,21,.12) 60%,rgba(18,26,21,0) 82%),
    url('../images/header.jpeg') center/cover no-repeat;}
.hero-inner{width:100%;padding-top:120px;max-width:760px}
.hero h1 .l2{display:block}
.hero .sub{margin-top:34px;color:rgba(255,255,255,.82);font-size:20px;max-width:34ch}
.hero .cta{margin-top:34px}

/* ---------- SECTION shared ---------- */
section{position:relative}
.sec-head{display:grid;grid-template-columns:170px 1fr;gap:24px;align-items:start}
.sec-head .label{padding-top:18px}

/* ---------- BENEFITS ---------- */
.benefits{background:var(--green);padding:110px 0 120px}
.ben-body{display:grid;grid-template-columns:1fr 1fr 1.32fr;gap:40px;margin-top:80px;align-items:stretch}
.ben-left{display:flex;flex-direction:column}
.ben-cta{margin-top:auto;padding-top:34px}
.ben-sub{font-size:18px;font-weight:600;text-transform:uppercase;letter-spacing:.01em;line-height:1.25}
.ben-text{margin-top:20px;color:var(--muted);font-size:18px}
.ben-img{border-radius:18px;overflow:hidden;min-height:380px;background:#222e26;display:grid;place-items:center}
.ben-img img{width:100%;height:100%;object-fit:cover}
.ben-right{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto 1fr;gap:20px;align-items:stretch}
.info-card{background:var(--card);border-radius:18px;padding:26px;display:flex;flex-direction:column;justify-content:flex-start}
.info-card svg{width:40px;height:40px;color:#fff;margin-bottom:18px}
.info-card p{font-size:21px;letter-spacing:-.01em}
.disclaimer{grid-column:2;align-self:end;display:flex;gap:16px;align-items:flex-start;color:var(--muted);font-size:16px;margin-top:8px}
.disclaimer svg{width:46px;height:46px;flex:none;color:var(--cream-d)}

/* ---------- VERIFY ---------- */
.verify{background:var(--green-2);padding:110px 0 120px;text-align:center}
.verify h2{max-width:14ch;margin:0 auto}
.verify p.lead{color:var(--muted);margin-top:22px;font-size:20px}
.vform{margin-top:40px;display:flex;gap:12px;max-width:620px;margin-left:auto;margin-right:auto}
.vform input{flex:1;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:12px;
  color:#fff;padding:18px 22px;font-size:17px;text-transform:uppercase;letter-spacing:.06em;outline:none;font-family:inherit}
.vform input:focus{border-color:var(--cream)}
.samples{margin-top:16px;color:var(--muted);font-size:15px}
.samples button{background:none;border:none;color:var(--cream-d);text-decoration:underline;cursor:pointer;font-size:15px;font-family:inherit}
.vresult{max-width:680px;margin:34px auto 0;text-align:left}
.vcard{border-radius:18px;padding:28px;animation:fade .5s ease both}
.vcard.ok{background:rgba(235,228,204,.07);border:1px solid rgba(235,228,204,.4)}
.vcard.no{background:rgba(220,80,70,.07);border:1px solid rgba(220,80,70,.4)}
.vcard .top{display:flex;align-items:center;gap:14px}
.vbadge{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;flex:none}
.vbadge.ok{background:var(--cream);color:var(--ink)}
.vbadge.no{background:#d9534f;color:#fff}
.vcard dl{display:grid;grid-template-columns:1fr 1fr;gap:14px 40px;margin-top:22px}
.vcard dl>div{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:10px}
.vcard dt{color:var(--muted)}
.vcard .coa{margin-top:22px;display:inline-flex;gap:10px;align-items:center;color:var(--cream);font-weight:600}
@keyframes fade{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- PRODUCTS ---------- */
.products{background:var(--green);padding:110px 0 130px}
/* carousel (Slick-style: 4 visible, arrows + dots, infinite) */
.carousel{position:relative;margin-top:80px}
.carousel-viewport{overflow:hidden}
.carousel-track{display:flex;gap:24px;transition:transform .55s cubic-bezier(.4,0,.2,1);will-change:transform}
.car-arrow{position:absolute;top:calc(50% - 30px);transform:translateY(-50%);z-index:4;width:56px;height:56px;
  border-radius:50%;background:var(--cream);color:var(--ink);border:none;cursor:pointer;display:grid;place-items:center;transition:.2s}
.car-arrow:hover{background:#fff}
.car-arrow.prev{left:-16px}
.car-arrow.next{right:-16px}
.carousel-dots{display:flex;justify-content:center;gap:10px;margin-top:44px}
.carousel-dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.22);cursor:pointer;transition:.25s;padding:0}
.carousel-dots button.active{background:var(--cream);width:30px;border-radius:5px}
.pcard{flex:0 0 calc((100% - 72px)/4);display:block}
.pcard .panel{background:linear-gradient(165deg,#2e3d33,#212d25);border-radius:18px;overflow:hidden;
  aspect-ratio:1/1.02;display:grid;place-items:center;transition:.25s;border:1px solid rgba(255,255,255,.04);cursor:zoom-in}
.pcard .panel img{width:100%;height:100%;object-fit:cover;transition:.3s}
.pcard .panel:focus-visible{outline:2px solid var(--cream);outline-offset:2px}
.pcard:hover .panel{border-color:rgba(235,228,204,.3)}
.pcard:hover .panel img{transform:scale(1.04)}
.pcard .name{margin-top:18px;font-size:25px;line-height:30px;letter-spacing:-.02em}
.pcard .cat{color:rgba(255,255,255,.61);font-size:15px;margin-top:2px}
.pcard .verify-link{margin-top:8px;font-size:15px;color:var(--cream-d);display:inline-flex;gap:6px}

/* ---------- FAQ ---------- */
.faq-sec{background:var(--bg);padding:30px 0 70px}
.faq-inner{background:#fff;color:var(--ink);border-radius:26px;padding:90px 64px 100px}
.faq-inner .label{color:#b8a564}
.faq-inner h2,.faq-inner .serif{color:var(--ink)}
.faq-body{display:grid;grid-template-columns:.85fr 1.3fr .85fr;gap:34px;margin-top:70px;align-items:start}
.faq-img{border-radius:18px;overflow:hidden;min-height:420px;background:#cdbb86;display:grid;place-items:center}
.faq-img img{width:100%;height:100%;object-fit:cover}
.acc{display:flex;flex-direction:column;gap:14px}
.acc details{background:#f5f5f3;border-radius:14px;overflow:hidden;transition:.2s}
.acc details[open]{background:#efe9d6}
.acc summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 26px;font-size:21px;font-weight:500}
.acc summary::-webkit-details-marker{display:none}
.acc .ans{padding:0 26px 24px;color:#4a4a4a;font-size:17px;line-height:1.5}
.acc .pm{width:22px;height:22px;flex:none;position:relative}
.acc .pm::before,.acc .pm::after{content:"";position:absolute;background:#1b1b1b;transition:.2s}
.acc .pm::before{top:10px;left:0;right:0;height:2px}
.acc .pm::after{left:10px;top:0;bottom:0;width:2px}
.acc details[open] .pm::after{transform:scaleY(0)}
.quality{background:#dce6d7;border-radius:18px;padding:30px}
.quality h3{color:var(--ink);font-weight:600;margin-bottom:18px}
.quality ul{list-style:none;display:flex;flex-direction:column;gap:12px;color:#2c3a30;font-size:17px}
.quality li::before{content:"✓ ";color:#3a5a3f;font-weight:700}

/* ---------- NEWSLETTER ---------- */
.news{background:linear-gradient(90deg,#0c100d 0%,#0c100d 42%,#1a221b 100%);position:relative;overflow:hidden;
  padding:120px 0;min-height:520px;display:flex;align-items:center}
.news::after{content:"";position:absolute;right:0;top:0;bottom:0;width:55%;
  background:radial-gradient(80% 120% at 90% 50%,rgba(216,201,158,.22),transparent 70%)}
.news .inner{position:relative;z-index:2;max-width:560px}
.news h2{font-size:clamp(40px,4.6vw,64px)}
.nform{margin-top:34px;display:flex;background:#fff;border-radius:40px;padding:7px 7px 7px 22px;max-width:430px;align-items:center}
.nform input{flex:1;border:none;outline:none;font-size:16px;color:#333;font-family:inherit;background:none}
.nform button{background:var(--ink);color:#fff;border:none;border-radius:30px;padding:13px 26px;cursor:pointer;font-family:inherit;font-size:16px}
.news .note{margin-top:24px;color:var(--muted)}

/* ---------- FOOTER ---------- */
footer{background:var(--green);padding:90px 0 40px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.flogo{height:96px;width:auto;margin-bottom:24px}
.ftag{color:var(--muted);font-size:17px;max-width:320px}
footer h4{font-weight:600;font-size:20px;margin-bottom:22px}
footer ul{list-style:none;display:flex;flex-direction:column;gap:14px}
footer ul a{color:var(--muted);transition:.2s}
footer ul a:hover{color:var(--cream)}
.col-r{text-align:right}
.fbottom{border-top:1px solid var(--line);margin-top:60px;padding-top:28px;text-align:center;color:var(--muted);font-size:15px}

/* vial svg placeholder */
.vial{width:clamp(220px,26vw,340px);height:auto;filter:drop-shadow(0 30px 50px rgba(0,0,0,.5))}

/* ---------- CATALOG PAGE (products.html) ---------- */
.page-head{background:var(--green-2);padding:170px 0 64px;text-align:center}
.page-head h2{margin-top:14px}
.page-head .lead{color:var(--muted);margin-top:18px;font-size:20px}
.catalog-tools{display:flex;gap:14px;justify-content:center;align-items:center;margin-top:36px;flex-wrap:wrap}
.search-box{position:relative;width:min(440px,90vw)}
.search-box svg{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--muted);width:20px;height:20px}
.search-box input{width:100%;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:40px;
  color:#fff;padding:15px 22px 15px 50px;font-size:16px;outline:none;font-family:inherit}
.search-box input:focus{border-color:var(--cream)}
.count{color:var(--muted);font-size:15px}
.catalog{background:var(--green);padding:64px 0 120px}
.catalog-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.catalog-empty{text-align:center;color:var(--muted);padding:60px 0;font-size:20px}
@media(max-width:1100px){.catalog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.catalog-grid{grid-template-columns:1fr 1fr;gap:14px}}

/* ---------- PRODUCT PHOTO LIGHTBOX ---------- */
.lightbox-overlay{position:fixed;inset:0;z-index:200;background:rgba(10,14,11,.92);
  display:flex;align-items:center;justify-content:center;padding:40px;
  opacity:0;pointer-events:none;transition:opacity .2s}
.lightbox-overlay.open{opacity:1;pointer-events:auto}
.lightbox-overlay .lightbox-img{max-width:min(90vw,900px);max-height:85vh;width:auto;height:auto;
  border-radius:14px;box-shadow:0 30px 80px rgba(0,0,0,.5);object-fit:contain}
.lightbox-close{position:absolute;top:24px;right:24px;width:46px;height:46px;border-radius:50%;
  background:var(--cream);color:var(--ink);border:none;cursor:pointer;display:grid;place-items:center;transition:.2s}
.lightbox-close:hover{background:#fff}
@media(max-width:640px){
  .lightbox-overlay{padding:16px}
  .lightbox-close{top:12px;right:12px;width:40px;height:40px}
}

/* ---------- RESPONSIVE ---------- */
@media(max-width:1100px){
  :root{--pad:30px}
  .ben-body,.faq-body,.fgrid{grid-template-columns:1fr;gap:40px}
  .ben-cta{padding-top:24px}
  .ben-right{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .disclaimer{grid-column:1/-1;align-self:start}
  .pcard{flex:0 0 calc((100% - 24px)/2)}
  .sec-head{grid-template-columns:1fr}
  .col-r{text-align:left}
  .news::after{display:none}.news{background:#0c100d}
  .faq-inner{padding:60px 28px}
}
@media(max-width:640px){
  .menu,.hdr-right .icon-btn{display:none}
  .burger{display:block}
  .nav{height:84px}.logo{height:48px}
  .pcard{flex:0 0 100%}
  .car-arrow{width:46px;height:46px}
  .car-arrow.prev{left:-6px}.car-arrow.next{right:-6px}
  .vform{flex-direction:column}
  .vcard dl{grid-template-columns:1fr}
  .mobile-menu.open{display:flex}
}