:root{
  --emerald:#13433a; --emerald-2:#1a5346; --emerald-deep:#0b2a22;
  --gold:#a9854c; --gold-soft:#c4a878; --gold-line:#d8c8a6;
  --bg:#faf8f3; --surface:#ffffff; --surface-2:#f3efe6;
  --ink:#1b2823; --muted:#7b857f; --line:#e7e1d4;
  --radius:14px; --radius-sm:10px; --radius-btn:6px;
  --shadow:0 24px 60px -34px rgba(11,42,34,.28);
  --shadow-sm:0 12px 30px -22px rgba(11,42,34,.22);
  --maxw:1180px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --serif:'Cormorant Garamond','Playfair Display',Georgia,serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;overflow-x:hidden;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
section{position:relative}
h1,h2,h3{font-family:var(--serif);line-height:1.12;font-weight:600;letter-spacing:.005em}
.eyebrow{font-family:var(--font);text-transform:uppercase;letter-spacing:.32em;font-size:.68rem;font-weight:600;color:var(--gold)}
.serif{font-family:var(--serif)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;border:none;cursor:pointer;font-family:var(--font);
  font-weight:600;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;padding:1rem 1.8rem;border-radius:var(--radius-btn);
  transition:.4s var(--ease);line-height:1}
.btn svg{width:16px;height:16px}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:#977440}
.btn-emerald{background:var(--emerald);color:var(--bg)}
.btn-emerald:hover{background:var(--emerald-2)}
.btn-ghost{background:transparent;border:1px solid rgba(216,200,166,.45);color:var(--bg)}
.btn-ghost:hover{border-color:var(--gold-soft);background:rgba(216,200,166,.08)}
.btn-outline{background:transparent;border:1px solid var(--line);color:var(--emerald)}
.btn-outline:hover{border-color:var(--gold);color:var(--gold)}
.btn-block{width:100%}
.btn-sm{padding:.7rem 1.1rem;font-size:.68rem}

/* header */
header.nav{position:sticky;top:0;z-index:60;background:rgba(250,248,243,.85);backdrop-filter:blur(16px) saturate(1.2);
  border-bottom:1px solid var(--line);transition:.4s}
.nav-inner{display:flex;align-items:center;gap:1.5rem;height:78px}
.logo{display:flex;align-items:center;gap:.7rem;font-family:var(--serif);font-size:1.7rem;font-weight:600;color:var(--emerald);letter-spacing:.01em}
.logo .mark{width:34px;height:34px;border-radius:50%;border:1px solid var(--gold);position:relative;flex:none}
.logo .mark::after{content:'';position:absolute;inset:6px;border-radius:50%;background:var(--gold);opacity:.18}
.logo small{display:block;font-family:var(--font);font-size:.54rem;letter-spacing:.36em;color:var(--muted);text-transform:uppercase;margin-top:1px;font-weight:500}
.nav-links{display:flex;gap:2rem;margin-left:auto;font-weight:500;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase}
.nav-links a{position:relative;padding:.2rem 0;color:var(--ink);opacity:.78;transition:.3s}
.nav-links a:hover{opacity:1;color:var(--emerald)}
.nav-actions{display:flex;align-items:center;gap:1rem}
.icon-btn{position:relative;background:none;border:none;cursor:pointer;color:var(--emerald);width:40px;height:40px;display:grid;place-items:center;transition:.3s}
.icon-btn:hover{color:var(--gold)}
.icon-btn svg{width:22px;height:22px}
.cart-count{position:absolute;top:0;right:0;background:var(--gold);color:#fff;font-size:.62rem;font-weight:700;
  min-width:17px;height:17px;border-radius:9px;display:grid;place-items:center;padding:0 4px;font-family:var(--font)}
.hamburger{display:none;background:none;border:none;color:var(--emerald);cursor:pointer;width:40px;height:40px;place-items:center}
.hamburger svg{width:24px;height:24px}

/* hero */
.hero{background:var(--emerald-deep);color:var(--bg);overflow:hidden;position:relative}
.hero::before{content:'';position:absolute;inset:0;background:url('/img/hero.jpg') center/cover;opacity:.22}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(110deg,var(--emerald-deep) 30%,rgba(11,42,34,.55))}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:4rem;align-items:center;padding:7rem 0 6.5rem;position:relative;z-index:2}
.hero h1{font-size:clamp(2.8rem,5.5vw,4.6rem);margin:1.4rem 0 1.5rem;font-weight:500;line-height:1.05}
.hero h1 .accent{font-style:italic;color:var(--gold-soft)}
.hero p.lead{font-size:1.08rem;color:rgba(250,248,243,.72);max-width:30rem;margin-bottom:2.4rem;line-height:1.8}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap}
.hero-trust{display:flex;gap:2.6rem;margin-top:3.2rem;padding-top:2.2rem;border-top:1px solid rgba(216,200,166,.18);flex-wrap:wrap}
.hero-trust div{font-size:.78rem;color:rgba(250,248,243,.62);letter-spacing:.04em}
.hero-trust strong{display:block;font-family:var(--serif);font-size:2.1rem;color:var(--gold-soft);font-weight:500;margin-bottom:.1rem}
.hero-visual{position:relative;height:480px;display:grid;place-items:center}
.hero-frame{position:relative;width:min(360px,85%);aspect-ratio:4/5;border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(216,200,166,.25);box-shadow:0 40px 80px -40px rgba(0,0,0,.6)}
.hero-frame img{width:100%;height:100%;object-fit:cover;animation:slowzoom 14s var(--ease) infinite alternate}
.hero-frame .tag{position:absolute;left:18px;bottom:18px;background:rgba(11,42,34,.6);backdrop-filter:blur(8px);
  border:1px solid rgba(216,200,166,.3);padding:.5rem .9rem;border-radius:999px;font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-soft)}
@keyframes slowzoom{to{transform:scale(1.06)}}

/* trust strip (static) */
.trust-bar{border-top:1px solid rgba(216,200,166,.16);border-bottom:1px solid rgba(216,200,166,.16);background:var(--emerald-deep)}
.trust-bar .wrap{display:flex;justify-content:center;gap:3.5rem;flex-wrap:wrap;padding:1.3rem 26px}
.trust-bar span{font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:rgba(216,200,166,.7)}

/* sections */
.section{padding:7rem 0}
.section-head{text-align:center;max-width:42rem;margin:0 auto 4rem}
.section-head h2{font-size:clamp(2.2rem,4vw,3.2rem);margin:1rem 0 1rem;color:var(--emerald);font-weight:500}
.section-head p{color:var(--muted);font-size:1.02rem}
.bg-surface2{background:var(--surface-2)}

/* category cards */
.cats{display:grid;grid-template-columns:1fr 1fr;gap:1.8rem}
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:420px;display:flex;align-items:flex-end;
  cursor:pointer;isolation:isolate}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:1.2s var(--ease)}
.cat-card::after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,rgba(11,42,34,.82),rgba(11,42,34,.05) 65%)}
.cat-card:hover img{transform:scale(1.05)}
.cat-card .cat-body{padding:2.4rem;color:var(--bg)}
.cat-card h3{font-size:2.3rem;margin:.2rem 0 .3rem;font-weight:500}
.cat-card p{color:rgba(250,248,243,.78);font-size:.95rem;margin-bottom:.8rem}
.cat-card span.link{color:var(--gold-soft);font-weight:600;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase}

/* products */
.product-filters{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap;margin-bottom:3.4rem}
.chip{border:1px solid var(--line);background:transparent;padding:.6rem 1.4rem;border-radius:999px;cursor:pointer;font-weight:600;
  font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);transition:.3s}
.chip.active,.chip:hover{background:var(--emerald);color:var(--bg);border-color:var(--emerald)}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}
.card{background:var(--surface);border-radius:var(--radius);overflow:hidden;transition:.5s var(--ease);display:flex;flex-direction:column;position:relative;border:1px solid var(--line)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--gold-line)}
.card .img{position:relative;aspect-ratio:4/5;background:var(--surface-2);overflow:hidden;display:block}
.card .img img{width:100%;height:100%;object-fit:cover;transition:.8s var(--ease)}
.card:hover .img img{transform:scale(1.05)}
.card .badge{position:absolute;top:14px;left:14px;background:rgba(250,248,243,.92);color:var(--emerald);font-size:.62rem;font-weight:700;
  padding:.4rem .8rem;border-radius:999px;text-transform:uppercase;letter-spacing:.12em}
.card .play{position:absolute;bottom:14px;right:14px;width:40px;height:40px;border-radius:50%;background:rgba(250,248,243,.92);
  color:var(--emerald);display:grid;place-items:center;transition:.3s}
.card .play svg{width:15px;height:15px}
.card:hover .play{background:var(--gold);color:#fff}
.card .body{padding:1.5rem 1.5rem 1.7rem;display:flex;flex-direction:column;flex:1}
.card .focus{font-size:.62rem;text-transform:uppercase;letter-spacing:.2em;color:var(--gold);font-weight:700;margin-bottom:.6rem}
.card h3{font-size:1.7rem;color:var(--emerald);margin-bottom:.1rem;font-weight:500}
.card .sub{font-size:.82rem;color:var(--muted);margin-bottom:.7rem}
.card .rating{font-size:.76rem;color:var(--muted);margin-bottom:.9rem;letter-spacing:.02em;display:flex;align-items:center;gap:.4rem}
.card .stars{color:var(--gold);letter-spacing:.1em}
.card .desc{font-size:.88rem;color:var(--muted);flex:1;margin-bottom:1.2rem;line-height:1.65}
.card .price-row{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:1.1rem}
.card .price{font-family:var(--serif);font-size:1.7rem;color:var(--emerald);font-weight:600}
.card .price small{font-size:.66rem;color:var(--muted);font-weight:400;font-family:var(--font);letter-spacing:.08em;text-transform:uppercase}
.card .actions{display:flex;gap:.6rem}
.card .actions .btn-emerald{flex:1}
.card .actions .btn-outline{padding:.7rem .9rem}

/* features */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:2.5rem}
.feature{text-align:center}
.feature .ico{width:46px;height:46px;margin:0 auto 1.2rem;color:var(--gold)}
.feature .ico svg{width:46px;height:46px;stroke-width:1.1}
.feature h4{font-family:var(--serif);color:var(--emerald);font-size:1.4rem;margin-bottom:.5rem;font-weight:500}
.feature p{font-size:.88rem;color:var(--muted);line-height:1.65}

/* research teaser */
.research-cta{background:var(--emerald);color:var(--bg);border-radius:var(--radius);
  padding:0;display:grid;grid-template-columns:1.1fr 1fr;gap:0;align-items:stretch;overflow:hidden}
.research-cta .rc-text{padding:4rem}
.research-cta .rc-img{position:relative;min-height:340px}
.research-cta .rc-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.research-cta h2{color:var(--bg);font-size:2.4rem;margin:1rem 0 1rem;font-weight:500}
.research-cta p{color:rgba(250,248,243,.74);margin-bottom:2rem;line-height:1.8}

/* consult band */
.consult{background:var(--emerald-deep);position:relative;color:var(--bg);text-align:center;overflow:hidden}
.consult::before{content:'';position:absolute;inset:0;background:url('/img/lab.jpg') center/cover;opacity:.16}
.consult .wrap{position:relative;z-index:2;padding:6rem 26px;max-width:46rem}
.consult h2{color:var(--bg);font-size:clamp(2rem,4vw,3rem);margin:1rem 0 1.2rem;font-weight:500}
.consult p{color:rgba(250,248,243,.72);margin:0 auto 2.2rem;line-height:1.8}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:5rem;align-items:center}
.about-grid img{border-radius:var(--radius);width:100%}
.about-grid h2{color:var(--emerald);font-size:2.8rem;margin:1rem 0 1.4rem;font-weight:500}
.about-grid p{color:var(--muted);margin-bottom:1.2rem;line-height:1.8}
.about-stats{display:flex;gap:3rem;margin-top:2.4rem;padding-top:2.2rem;border-top:1px solid var(--line)}
.about-stats div strong{display:block;font-family:var(--serif);font-size:2.6rem;color:var(--gold);font-weight:500}
.about-stats div span{font-size:.74rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}

/* faq */
.faq-list{max-width:50rem;margin:0 auto;display:flex;flex-direction:column}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{padding:1.6rem .4rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:1rem;
  font-weight:500;color:var(--emerald);font-family:var(--serif);font-size:1.35rem}
.faq-q .plus{transition:.4s var(--ease);color:var(--gold);font-size:1.4rem;flex:none;font-family:var(--font);font-weight:300}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:.45s var(--ease);color:var(--muted);font-size:.95rem;line-height:1.75}
.faq-item.open .faq-a{max-height:340px;padding:0 .4rem 1.6rem}

/* footer */
footer{background:var(--emerald-deep);color:rgba(250,248,243,.62);padding:5rem 0 2rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:2.5rem;margin-bottom:3.5rem}
footer h4{font-family:var(--font);color:var(--bg);margin-bottom:1.3rem;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600}
footer a{display:block;padding:.35rem 0;font-size:.92rem;transition:.3s;color:rgba(250,248,243,.62)}
footer a:hover{color:var(--gold-soft)}
.foot-grid>div>p{font-size:.92rem;line-height:1.7}
.socials{display:flex;gap:.6rem;margin-top:1.4rem}
.socials a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(216,200,166,.25);display:grid;place-items:center;padding:0;color:rgba(250,248,243,.7)}
.socials a svg{width:17px;height:17px}
.socials a:hover{background:var(--gold);border-color:var(--gold);color:#fff}
.foot-bottom{border-top:1px solid rgba(216,200,166,.14);padding-top:1.6rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.8rem;font-size:.76rem;line-height:1.6;color:rgba(250,248,243,.5)}
.newsletter input{width:100%;padding:.9rem 1rem;border-radius:var(--radius-btn);border:1px solid rgba(216,200,166,.25);
  margin-bottom:.7rem;font-family:var(--font);background:rgba(250,248,243,.05);color:var(--bg);font-size:.9rem}
.newsletter input::placeholder{color:rgba(250,248,243,.4)}

/* cart drawer */
.overlay{position:fixed;inset:0;background:rgba(11,42,34,.45);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:.4s;z-index:90}
.overlay.show{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(430px,100%);background:var(--bg);z-index:100;
  transform:translateX(100%);transition:.5s var(--ease);display:flex;flex-direction:column;box-shadow:var(--shadow)}
.drawer.show{transform:translateX(0)}
.drawer-head{padding:1.6rem 1.7rem;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}
.drawer-head h3{color:var(--emerald);font-size:1.5rem;font-weight:500}
.drawer-close{background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--muted);line-height:1;transition:.3s}
.drawer-close:hover{color:var(--emerald)}
.cart-items{flex:1;overflow-y:auto;padding:1rem 1.7rem}
.cart-item{display:flex;gap:1rem;padding:1.1rem 0;border-bottom:1px solid var(--line)}
.cart-item img{width:68px;height:84px;border-radius:8px;object-fit:cover}
.cart-item .ci-body{flex:1}
.cart-item h5{font-family:var(--serif);color:var(--emerald);font-size:1.2rem;font-weight:500}
.cart-item .ci-var{font-size:.78rem;color:var(--muted);margin-top:.1rem}
.qty{display:flex;align-items:center;gap:.6rem;margin-top:.6rem}
.qty button{width:28px;height:28px;border-radius:6px;border:1px solid var(--line);background:var(--surface);cursor:pointer;font-size:1rem;color:var(--emerald);transition:.2s}
.qty button:hover{border-color:var(--gold)}
.qty .remove{margin-left:auto;width:auto;background:none;border:none;color:var(--muted);cursor:pointer;font-size:.74rem;letter-spacing:.08em;text-transform:uppercase}
.qty .remove:hover{color:#a14a4a}
.cart-empty{text-align:center;color:var(--muted);padding:3.5rem 1rem;font-size:.95rem}
.drawer-foot{padding:1.6rem 1.7rem;border-top:1px solid var(--line);background:var(--surface)}
.cart-total{display:flex;justify-content:space-between;align-items:baseline;font-family:var(--serif);font-size:1.5rem;color:var(--emerald);margin-bottom:.5rem;font-weight:600}
.free-ship{font-size:.78rem;color:var(--muted);margin-bottom:1.2rem;letter-spacing:.02em}
.free-ship .bar{height:3px;background:var(--line);border-radius:3px;margin-top:.6rem;overflow:hidden}
.free-ship .bar i{display:block;height:100%;background:var(--gold);transition:.5s var(--ease)}

/* chatbot */
.chat-fab{position:fixed;bottom:26px;right:26px;z-index:80;width:58px;height:58px;border-radius:50%;border:none;cursor:pointer;
  background:var(--emerald);color:var(--bg);display:grid;place-items:center;box-shadow:var(--shadow);transition:.4s var(--ease)}
.chat-fab svg{width:24px;height:24px}
.chat-fab:hover{background:var(--emerald-2);transform:translateY(-2px)}
.chat-fab .dot{position:absolute;top:4px;right:4px;width:11px;height:11px;background:var(--gold);border-radius:50%;border:2px solid var(--emerald)}
.chat-panel{position:fixed;bottom:98px;right:26px;z-index:85;width:min(390px,calc(100% - 52px));height:560px;max-height:74vh;
  background:var(--bg);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);
  opacity:0;visibility:hidden;transform:translateY(16px) scale(.98);transition:.4s var(--ease)}
.chat-panel.show{opacity:1;visibility:visible;transform:none}
.chat-head{background:var(--emerald);color:var(--bg);padding:1.3rem 1.5rem;display:flex;align-items:center;gap:.9rem}
.chat-head .av{width:42px;height:42px;border-radius:50%;border:1px solid var(--gold-soft);display:grid;place-items:center;color:var(--gold-soft);flex:none}
.chat-head .av svg{width:20px;height:20px}
.chat-head h4{font-family:var(--serif);font-size:1.3rem;font-weight:500}
.chat-head small{color:var(--gold-soft);font-size:.72rem;display:flex;align-items:center;gap:.4rem;letter-spacing:.04em}
.chat-head small::before{content:'';width:6px;height:6px;border-radius:50%;background:#6fcf97}
.chat-body{flex:1;overflow-y:auto;padding:1.3rem;display:flex;flex-direction:column;gap:.8rem}
.msg{max-width:84%;padding:.8rem 1.05rem;border-radius:14px;font-size:.9rem;line-height:1.55;white-space:pre-wrap}
.msg.bot{background:var(--surface);color:var(--ink);align-self:flex-start;border-bottom-left-radius:4px;border:1px solid var(--line)}
.msg.user{background:var(--emerald);color:var(--bg);align-self:flex-end;border-bottom-right-radius:4px}
.msg.typing{color:var(--muted);font-style:italic;background:transparent;border:none}
.chat-quick{display:flex;gap:.45rem;flex-wrap:wrap;padding:0 1.3rem .7rem}
.chat-quick button{font-size:.72rem;border:1px solid var(--line);background:var(--surface);padding:.4rem .8rem;border-radius:999px;cursor:pointer;color:var(--emerald);transition:.2s}
.chat-quick button:hover{border-color:var(--gold);color:var(--gold)}
.chat-input{display:flex;gap:.5rem;padding:.9rem 1.3rem;border-top:1px solid var(--line);background:var(--surface)}
.chat-input input{flex:1;border:1px solid var(--line);border-radius:999px;padding:.7rem 1.1rem;font-family:var(--font);font-size:.9rem;background:var(--bg)}
.chat-input button{border:none;background:var(--emerald);color:var(--bg);width:42px;height:42px;border-radius:50%;cursor:pointer;display:grid;place-items:center;flex:none}
.chat-input button svg{width:17px;height:17px}

/* modal */
.modal-ov{position:fixed;inset:0;background:rgba(11,42,34,.6);backdrop-filter:blur(5px);z-index:110;display:grid;place-items:center;
  padding:22px;opacity:0;visibility:hidden;transition:.4s}
.modal-ov.show{opacity:1;visibility:visible}
.modal{background:var(--bg);border-radius:var(--radius);max-width:540px;width:100%;max-height:90vh;overflow-y:auto;padding:2.6rem;position:relative;transform:translateY(14px);transition:.4s var(--ease)}
.modal-ov.show .modal{transform:none}
.modal.video-modal{max-width:880px;padding:0;overflow:hidden;background:#06140f}
.modal h3{color:var(--emerald);font-size:1.9rem;margin:.6rem 0 .5rem;font-weight:500}
.modal p.sub{color:var(--muted);margin-bottom:1.6rem;font-size:.94rem;line-height:1.7}
.modal-close{position:absolute;top:16px;right:18px;background:rgba(250,248,243,.12);border:none;width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:1.1rem;color:#fff;z-index:3;transition:.3s}
.modal-close:hover{background:rgba(250,248,243,.25)}
.field{margin-bottom:1.1rem}
.field label{display:block;font-size:.7rem;font-weight:600;color:var(--emerald);margin-bottom:.45rem;letter-spacing:.1em;text-transform:uppercase}
.field input,.field textarea,.field select{width:100%;padding:.85rem 1rem;border:1px solid var(--line);border-radius:var(--radius-btn);font-family:var(--font);font-size:.94rem;background:var(--surface);transition:.3s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold)}
.field textarea{min-height:96px;resize:vertical}
.video-frame{aspect-ratio:16/9;position:relative;background:#06140f;display:grid;place-items:center;color:var(--bg);text-align:center}
.video-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45}
.video-frame .vplay{position:relative;z-index:2;width:74px;height:74px;border-radius:50%;background:var(--gold);display:grid;place-items:center;color:#fff;cursor:pointer}
.video-frame .vplay svg{width:24px;height:24px}
.video-frame .vcap{position:relative;z-index:2;margin-top:1.2rem;font-size:.9rem;color:rgba(250,248,243,.82);max-width:30rem;padding:0 1rem}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(180%);background:var(--emerald);color:var(--bg);
  padding:1rem 1.6rem;border-radius:var(--radius-btn);box-shadow:var(--shadow);z-index:130;transition:.45s var(--ease);font-size:.88rem;
  font-weight:500;letter-spacing:.02em;opacity:0;visibility:hidden;pointer-events:none;max-width:calc(100% - 44px)}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1;visibility:visible}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:.9s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* product detail */
.pd-hero{display:grid;grid-template-columns:1fr 1fr;gap:4.5rem;padding:3.5rem 0;align-items:start}
.pd-media{position:sticky;top:100px}
.pd-media .main-img{border-radius:var(--radius);overflow:hidden;background:var(--surface-2);aspect-ratio:4/5}
.pd-media .main-img img{width:100%;height:100%;object-fit:cover}
.pd-video-btn{margin-top:1rem;width:100%}
.pd-info .focus{color:var(--gold);font-weight:700;text-transform:uppercase;letter-spacing:.2em;font-size:.7rem}
.pd-info h1{font-size:3.4rem;color:var(--emerald);margin:.6rem 0 .3rem;font-weight:500}
.pd-info .pd-sub{color:var(--muted);font-size:1.05rem;margin-bottom:1rem;line-height:1.6}
.pd-info .rating{display:flex;align-items:center;gap:.5rem;font-size:.82rem}
.pd-info .rating .stars{color:var(--gold);letter-spacing:.1em}
.pd-price{font-family:var(--serif);font-size:2.6rem;color:var(--emerald);margin:1.4rem 0;font-weight:600}
.pd-variants{display:flex;gap:.7rem;margin:1.2rem 0}
.pd-variants button{padding:.7rem 1.3rem;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-btn);cursor:pointer;font-weight:600;color:var(--emerald);font-size:.85rem;letter-spacing:.04em;transition:.3s}
.pd-variants button.active{border-color:var(--gold);color:var(--gold)}
.pd-benefits{list-style:none;margin:1.8rem 0}
.pd-benefits li{padding:.55rem 0 .55rem 1.9rem;position:relative;color:var(--ink);border-bottom:1px solid var(--line);font-size:.94rem}
.pd-benefits li::before{content:'';position:absolute;left:0;top:1rem;width:8px;height:8px;border-radius:50%;border:1px solid var(--gold)}
.pd-buy{display:flex;gap:.8rem;margin:2rem 0}
.pd-buy .btn-emerald{flex:1}
.pd-section{padding:2rem 0;border-top:1px solid var(--line)}
.pd-section h3{color:var(--emerald);margin-bottom:.7rem;font-size:1.6rem;font-weight:500}
.pd-section p{color:var(--muted);line-height:1.8}
.disclaimer{background:var(--surface);border:1px solid var(--line);border-left:2px solid var(--gold);padding:1.1rem 1.3rem;border-radius:var(--radius-sm);font-size:.84rem;color:var(--muted);margin:1.8rem 0;line-height:1.65}

/* research page */
.rsearch{max-width:760px;margin:0 auto}
.rsearch-box{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--line);padding:1.5rem;display:flex;gap:.8rem;flex-wrap:wrap}
.rsearch-box input{flex:1;min-width:220px;border:1px solid var(--line);border-radius:var(--radius-btn);padding:.95rem 1.1rem;font-size:1rem;font-family:var(--font);background:var(--bg)}
.rsearch-box input:focus{outline:none;border-color:var(--gold)}
.r-suggest{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1.2rem;justify-content:center}
.r-result{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);padding:2.6rem;margin-top:2.2rem;display:none}
.r-result.show{display:block;animation:fadeUp .6s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.r-result h2{color:var(--emerald);font-size:2rem;margin:.6rem 0 .8rem;font-weight:500}
.r-result .r-summary{font-size:1.08rem;color:var(--ink);margin-bottom:1.6rem;padding-bottom:1.4rem;border-bottom:1px solid var(--line);line-height:1.8}
.r-result h4{color:var(--gold);text-transform:uppercase;letter-spacing:.18em;font-size:.7rem;margin:1.6rem 0 .7rem;font-family:var(--font);font-weight:700}
.r-result ul{list-style:none}
.r-result ul li{padding:.5rem 0 .5rem 1.7rem;position:relative;color:var(--muted);line-height:1.6}
.r-result ul li::before{content:'';position:absolute;left:0;top:1rem;width:6px;height:1px;background:var(--gold)}
.r-tags{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.5rem}
.r-tags span{background:var(--surface-2);padding:.4rem .9rem;border-radius:999px;font-size:.8rem;color:var(--emerald)}
.r-loading{text-align:center;padding:2.5rem;color:var(--muted)}
.spinner{width:38px;height:38px;border:2px solid var(--line);border-top-color:var(--gold);border-radius:50%;margin:0 auto 1.2rem;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* page hero */
.page-hero{background:var(--emerald-deep);color:var(--bg);padding:5rem 0 4.5rem;text-align:center;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:url('/img/research.jpg') center/cover;opacity:.14}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:clamp(2.4rem,5vw,3.6rem);margin:1rem 0 .8rem;font-weight:500}
.page-hero p{color:rgba(250,248,243,.74);max-width:36rem;margin:0 auto;line-height:1.8}

/* responsive */
@media(max-width:980px){
  .hero-grid,.about-grid,.research-cta,.pd-hero{grid-template-columns:1fr;gap:3rem}
  .research-cta .rc-img{min-height:240px}
  .hero-visual{height:360px;order:-1}
  .product-grid,.features{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .pd-media{position:static}
  .section{padding:5rem 0}
}
@media(max-width:680px){
  .nav-links{position:fixed;top:78px;right:0;width:min(300px,82%);height:calc(100vh - 78px);background:var(--bg);
    flex-direction:column;padding:2rem 1.8rem;gap:1.6rem;transform:translateX(100%);transition:.4s var(--ease);box-shadow:var(--shadow);font-size:.92rem}
  .nav-links.open{transform:none}
  .hamburger{display:grid}
  .cats,.product-grid,.features,.foot-grid{grid-template-columns:1fr}
  .research-cta .rc-text,.consult .wrap{padding:2.6rem}
  .about-stats{flex-wrap:wrap;gap:1.6rem}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .trust-bar .wrap{gap:1.4rem}
}