/*
Theme Name: BT BioLabs Child
Template: astra
Version: 1.1.0
Description: BT BioLabs B2B biotech supplier styling
*/
:root{--btb-navy:#07152f;--btb-blue:#2563eb;--btb-cyan:#06b6d4;--btb-text:#1f2937;--btb-muted:#64748b;--btb-line:#e2e8f0;--btb-soft:#f6f9fc;--btb-radius:22px;--btb-shadow:0 18px 55px rgba(15,23,42,.10)}
body,.ast-container,.entry-content{font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;color:var(--btb-text)}
.ast-container{max-width:1240px}.entry-title{font-size:34px;letter-spacing:-.03em}.entry-content p{line-height:1.75}.entry-content a{text-decoration:none}.main-header-menu .menu-link{font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.site-footer{border-top:1px solid var(--btb-line)}
.btb-page{font-family:Inter,Arial,sans-serif}.btb-hero{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;padding:74px 34px;margin:18px 0 34px;border-radius:30px;background:radial-gradient(circle at 14% 12%,rgba(125,211,252,.22),transparent 32%),linear-gradient(135deg,#07152f 0%,#102a56 55%,#201144 100%);color:#fff;overflow:hidden}.btb-hero h1{font-size:clamp(34px,5vw,62px);line-height:1.03;margin:0 0 20px;color:#fff;letter-spacing:-.055em}.btb-hero p{font-size:18px;color:#cbd5e1;max-width:760px;margin:0 0 28px}.btb-kicker{display:inline-flex;gap:9px;align-items:center;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);padding:9px 13px;border-radius:999px;color:#e0f2fe;font-weight:700;font-size:12px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:18px}.btb-hero-img,.btb-img{width:100%;height:auto;border-radius:26px;box-shadow:var(--btb-shadow);display:block}.btb-actions{display:flex;flex-wrap:wrap;gap:14px}.btb-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:999px;font-weight:800;border:1px solid transparent;line-height:1.2}.btb-btn.primary{background:#38bdf8;color:#061226}.btb-btn.dark{background:var(--btb-blue);color:#fff}.btb-btn.light{background:#fff;color:#0f172a}.btb-btn.outline{border-color:rgba(255,255,255,.34);color:#fff}.btb-btn.ghost{border-color:var(--btb-line);color:var(--btb-blue);background:#fff}.btb-trust{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 56px}.btb-trust span{background:#fff;border:1px solid var(--btb-line);box-shadow:0 8px 28px rgba(15,23,42,.06);border-radius:18px;padding:18px;text-align:center;font-weight:800;color:#0f172a;font-size:14px}.btb-section{padding:58px 0}.btb-section.soft{background:var(--btb-soft);margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);padding-left:calc(50vw - 50%);padding-right:calc(50vw - 50%)}.btb-head{max-width:820px;margin:0 auto 34px;text-align:center}.btb-head h2{font-size:clamp(28px,3.6vw,44px);line-height:1.1;margin:0 0 14px;color:#0f172a;letter-spacing:-.045em}.btb-head p{color:var(--btb-muted);font-size:17px;margin:0}.btb-grid{display:grid;gap:22px}.btb-grid.cols-2{grid-template-columns:repeat(2,1fr)}.btb-grid.cols-3{grid-template-columns:repeat(3,1fr)}.btb-grid.cols-4{grid-template-columns:repeat(4,1fr)}.btb-card{background:#fff;border:1px solid var(--btb-line);border-radius:var(--btb-radius);padding:28px;box-shadow:0 10px 34px rgba(15,23,42,.055)}.btb-card h3{font-size:20px;margin:0 0 10px;color:#0f172a}.btb-card p,.btb-card li{color:#64748b;font-size:15px;line-height:1.7}.btb-card ul{margin:12px 0 0;padding-left:18px}.btb-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:#eff6ff;color:var(--btb-blue);font-weight:900;margin-bottom:16px}.btb-split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}.btb-list{display:grid;gap:12px;margin:20px 0}.btb-list span{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--btb-line);padding:14px 16px;border-radius:16px;color:#334155;font-weight:650}.btb-list span:before{content:'✓';color:#0284c7;font-weight:900}.btb-pill-row{display:flex;flex-wrap:wrap;gap:10px}.btb-pill{padding:9px 13px;background:#eef6ff;color:#1d4ed8;border-radius:999px;font-size:13px;font-weight:800}.btb-process{counter-reset:step}.btb-process .btb-card{position:relative}.btb-process .btb-card:before{counter-increment:step;content:counter(step);width:34px;height:34px;border-radius:999px;background:#0f172a;color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:15px}.btb-cta{border-radius:30px;padding:44px;background:linear-gradient(135deg,#07152f,#164e63);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px;margin:56px 0 18px}.btb-cta h2{color:#fff;margin:0 0 8px;font-size:34px;letter-spacing:-.04em}.btb-cta p{color:#cbd5e1;margin:0}.btb-table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border-radius:20px;border:1px solid var(--btb-line);background:#fff}.btb-table th,.btb-table td{padding:16px 18px;border-bottom:1px solid var(--btb-line);text-align:left}.btb-table th{background:#0f172a;color:#fff}.btb-table tr:last-child td{border-bottom:none}.btb-note{background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:18px;padding:18px}.btb-faq details{background:#fff;border:1px solid var(--btb-line);border-radius:18px;padding:18px 20px;margin-bottom:14px}.btb-faq summary{font-weight:850;color:#0f172a;cursor:pointer}.btb-faq p{color:#64748b;margin:12px 0 0}.btb-form-wrap{background:#fff;border:1px solid var(--btb-line);border-radius:24px;padding:28px;box-shadow:var(--btb-shadow)}.btb-video-card{position:relative;border-radius:26px;overflow:hidden;box-shadow:var(--btb-shadow);background:#07152f}.btb-video-card:after{content:'Brand supply overview';position:absolute;left:22px;bottom:22px;background:rgba(255,255,255,.9);color:#0f172a;border-radius:999px;padding:10px 14px;font-weight:850}.btb-play{position:absolute;inset:0;display:grid;place-items:center}.btb-play span{width:74px;height:74px;border-radius:999px;background:rgba(255,255,255,.9);display:grid;place-items:center;color:#2563eb;font-size:30px;box-shadow:0 14px 40px rgba(0,0,0,.25)}.wpcf7 input,.wpcf7 textarea,.wpcf7 select{width:100%;border:1px solid #cbd5e1;border-radius:14px;padding:13px 14px;margin-top:7px}.wpcf7 label{font-weight:750;color:#334155}.wpcf7-submit{background:var(--btb-blue)!important;color:#fff!important;border:0!important;border-radius:999px!important;padding:14px 24px!important;font-weight:850!important;width:auto!important}.btb-small{font-size:13px;color:#64748b}.btb-contact-box{background:#f8fafc;border:1px solid var(--btb-line);border-radius:18px;padding:18px}.btb-contact-box strong{display:block;color:#0f172a;margin-bottom:4px}@media(max-width:921px){.btb-hero,.btb-split{grid-template-columns:1fr}.btb-trust,.btb-grid.cols-4{grid-template-columns:repeat(2,1fr)}.btb-grid.cols-3,.btb-grid.cols-2{grid-template-columns:1fr}.btb-cta{display:block}.btb-cta .btb-actions{margin-top:20px}.btb-section{padding:44px 0}}@media(max-width:544px){.btb-hero{padding:42px 20px;border-radius:22px}.btb-trust{grid-template-columns:1fr}.btb-card{padding:22px}.btb-table{font-size:13px}.btb-table th,.btb-table td{padding:12px}.btb-actions .btb-btn{width:100%}.btb-cta{padding:30px 22px;border-radius:22px}.btb-cta h2{font-size:26px}}
.btb-page img,.btb-page video{max-width:100%;height:auto;object-fit:cover}.btb-hero-img{aspect-ratio:16/10;object-fit:cover}.btb-img{aspect-ratio:16/10;object-fit:cover}.btb-video-card video{display:block;width:100%;height:auto}.btb-video-card .btb-play{pointer-events:none}.btb-video-card:hover .btb-play span{transform:scale(1.04)}

/* real-photo upgrade */
.btb-hero-img,.btb-img{filter:saturate(.98) contrast(1.04);background:#0b172a}.btb-video-card{background:#07152f}.btb-video-card:after{content:'Real B2B supply overview';}

/* premium visual upgrade */
.btb-hero{border-radius:34px;box-shadow:0 28px 90px rgba(2,8,23,.16);background:linear-gradient(135deg,#030b18,#07152f)}
.btb-hero-img,.btb-img{border-radius:28px;box-shadow:0 24px 80px rgba(2,8,23,.18);object-fit:cover;transition:transform .45s ease,box-shadow .45s ease;}
.btb-hero-img:hover,.btb-img:hover{transform:translateY(-3px) scale(1.01);box-shadow:0 30px 100px rgba(2,8,23,.23)}
.btb-card{border:1px solid rgba(148,163,184,.28);box-shadow:0 18px 54px rgba(15,23,42,.075)}
.btb-card:hover{transform:translateY(-3px);box-shadow:0 24px 70px rgba(15,23,42,.11)}
.btb-video-card{border:1px solid rgba(148,163,184,.22);box-shadow:0 26px 90px rgba(2,8,23,.22)}
.btb-video-card:after{content:'Premium brand film';background:rgba(255,255,255,.92);backdrop-filter:blur(10px)}
.btb-play span{background:rgba(255,255,255,.92);backdrop-filter:blur(8px)}
@media(max-width:544px){.btb-hero{border-radius:24px}.btb-hero-img,.btb-img{border-radius:20px;aspect-ratio:4/3}.btb-video-card:after{font-size:12px;left:14px;bottom:14px}}
/* premium refinement: cleaner and higher-end */
.btb-hero{padding:68px 32px;gap:38px;}
.btb-hero h1{letter-spacing:-.06em;text-wrap:balance;}
.btb-hero p{max-width:720px;}
.btb-trust span{background:linear-gradient(180deg,#fff,#f8fbff);border-color:#dbeafe;}
.btb-section.soft{background:linear-gradient(180deg,#f7fbff,#f4f8fc)}
.btb-card{transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;}
.btb-card:hover{border-color:#bfdbfe;}
.btb-btn.primary,.btb-btn.dark{box-shadow:0 12px 30px rgba(37,99,235,.25)}
.btb-hero-img,.btb-img{image-rendering:auto;}
.btb-video-card .btb-img{aspect-ratio:16/9;}
@media(min-width:922px){.btb-hero-img{min-height:500px}.btb-hero{min-height:620px}}
/* Gene / DNA cinematic homepage hero */
.btb-gene-hero{position:relative;overflow:hidden;isolation:isolate;min-height:720px;grid-template-columns:minmax(0,0.92fr) minmax(360px,0.72fr);background:#020817!important;border:1px solid rgba(56,189,248,.18);}
.btb-gene-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-3;filter:saturate(1.08) contrast(1.08);}
.btb-gene-hero:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,8,23,.9) 0%,rgba(2,8,23,.6) 44%,rgba(2,8,23,.18) 100%),radial-gradient(circle at 70% 35%,rgba(56,189,248,.18),transparent 35%);z-index:-2;}
.btb-gene-hero:after{content:'';position:absolute;inset:auto 0 0 0;height:38%;background:linear-gradient(0deg,rgba(2,8,23,.72),transparent);z-index:-1;}
.btb-gene-hero .btb-hero-img{opacity:.78;border:1px solid rgba(255,255,255,.18);box-shadow:0 28px 90px rgba(0,0,0,.28);}
.btb-gene-hero .btb-kicker{background:rgba(15,23,42,.52);backdrop-filter:blur(14px);border-color:rgba(125,211,252,.28);color:#bae6fd;}
.btb-gene-hero h1{text-shadow:0 18px 60px rgba(0,0,0,.55);}
.btb-gene-hero p{color:#dbeafe;text-shadow:0 10px 35px rgba(0,0,0,.35);}
.btb-gene-hero .btb-btn.primary{background:linear-gradient(135deg,#38bdf8,#2dd4bf);box-shadow:0 16px 42px rgba(45,212,191,.28);}
.btb-gene-hero .btb-btn.outline{background:rgba(255,255,255,.08);backdrop-filter:blur(10px);border-color:rgba(186,230,253,.38)}
@media(max-width:921px){.btb-gene-hero{grid-template-columns:1fr;min-height:680px}.btb-gene-hero .btb-hero-img{display:none}.btb-gene-hero:before{background:linear-gradient(90deg,rgba(2,8,23,.92),rgba(2,8,23,.62)),radial-gradient(circle at 78% 20%,rgba(56,189,248,.22),transparent 38%);}}
@media(max-width:544px){.btb-gene-hero{min-height:620px;padding-top:62px;padding-bottom:62px}.btb-gene-bg{opacity:.95}.btb-gene-hero h1{font-size:34px}.btb-gene-hero .btb-actions .btb-btn{width:100%;}}
/* Product catalog interactive grid */
.btb-catalog-hero{min-height:560px}.btb-catalog-tools{position:sticky;top:32px;z-index:3;display:flex;flex-wrap:wrap;gap:12px;align-items:center;background:rgba(248,251,255,.86);backdrop-filter:blur(16px);border:1px solid #dbeafe;border-radius:24px;padding:16px;margin-bottom:28px;box-shadow:0 16px 50px rgba(15,23,42,.08)}
.btb-cat-btn{border:1px solid #cbd5e1;background:#fff;color:#0f172a;border-radius:999px;padding:11px 15px;font-weight:800;cursor:pointer;transition:all .25s ease}.btb-cat-btn span{margin-left:6px;color:#2563eb}.btb-cat-btn:hover,.btb-cat-btn.active{background:linear-gradient(135deg,#0f172a,#1d4ed8);color:#fff;border-color:#2563eb;transform:translateY(-2px);box-shadow:0 14px 30px rgba(37,99,235,.18)}.btb-cat-btn:hover span,.btb-cat-btn.active span{color:#bae6fd}
#btbProductSearch{flex:1;min-width:260px;border:1px solid #cbd5e1;border-radius:999px;padding:13px 18px;background:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.4)}
.btb-product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.btb-product-card{position:relative;background:#fff;border:1px solid #e2e8f0;border-radius:26px;overflow:hidden;box-shadow:0 14px 42px rgba(15,23,42,.07);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}.btb-product-card:before{content:'';position:absolute;inset:-1px;border-radius:26px;padding:1px;background:linear-gradient(135deg,rgba(56,189,248,.0),rgba(56,189,248,.55),rgba(129,140,248,.0));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .28s}.btb-product-card:hover{transform:translateY(-8px);box-shadow:0 28px 80px rgba(37,99,235,.16);border-color:#bfdbfe}.btb-product-card:hover:before{opacity:1}.btb-product-img{background:linear-gradient(180deg,#fff,#f8fbff);padding:12px;overflow:hidden}.btb-product-img img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;transition:transform .35s ease,filter .35s ease}.btb-product-card:hover img{transform:scale(1.055);filter:saturate(1.08) contrast(1.03)}.btb-product-body{padding:18px 18px 20px}.btb-product-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px}.btb-product-meta span{font-size:11px;font-weight:900;color:#2563eb;background:#eff6ff;border-radius:999px;padding:7px 9px}.btb-product-meta strong{font-size:12px;color:#0f172a;background:#f1f5f9;border-radius:999px;padding:7px 9px}.btb-product-card h3{font-size:18px;line-height:1.22;margin:0 0 10px;color:#0f172a;min-height:44px}.btb-spec{font-size:15px;color:#475569;font-weight:800;margin:0 0 16px}.btb-mini-cta{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:12px 14px;border-radius:999px;background:#0f172a;color:#fff;font-weight:900;transition:background .25s,transform .25s}.btb-mini-cta:hover{background:#2563eb;color:#fff;transform:translateY(-1px)}
@media(max-width:1180px){.btb-product-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:820px){.btb-product-grid{grid-template-columns:repeat(2,1fr)}.btb-catalog-tools{position:static}}@media(max-width:544px){.btb-product-grid{grid-template-columns:1fr}.btb-product-card h3{min-height:auto}#btbProductSearch{min-width:100%}}