/* Synapse shop – storefront. Light content, black header/footer, lime accent (matches synapsenfc.co). */
:root{
  --ink:#0a0a0a;--ink-2:#1c1c1c;--bg:#f6f6f2;--card:#fff;--line:#e5e5de;--muted:#6a6a64;--lime:#d4ff3d;--lime-d:#b8e52a;
  --red:#c0262d;--green:#177a3b;--radius:14px;--radius-lg:22px;--shadow:0 1px 2px rgba(0,0,0,.05),0 8px 24px rgba(0,0,0,.06);
  --f-body:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;--f-head:'Space Grotesk','Inter',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--f-body);font-size:16px;line-height:1.55;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--f-head);line-height:1.15;letter-spacing:-.01em}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--lime);color:var(--ink);padding:10px 16px;z-index:100;font-weight:700}
.skip:focus{left:0}

/* header */
.hdr{background:var(--ink);color:#fff;position:sticky;top:0;z-index:50}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.hdr .logo img{height:22px;width:auto}
.hdr nav{display:flex;align-items:center;gap:6px}
.hdr nav a{color:#d8d8d2;text-decoration:none;font-size:14px;font-weight:500;padding:8px 12px;border-radius:999px}
.hdr nav a:hover{color:#fff;background:#1f1f1f}
.cart-link{position:relative;display:inline-flex;align-items:center;gap:8px;background:var(--lime);color:var(--ink)!important;font-weight:700!important}
.cart-link:hover{background:var(--lime-d)!important;color:var(--ink)!important}
.cart-link .n{background:var(--ink);color:var(--lime);border-radius:999px;min-width:20px;height:20px;font-size:12px;display:inline-flex;align-items:center;justify-content:center;padding:0 6px}
@media(max-width:900px){.hdr nav a[href*="synapsenfc"],.hdr nav a[href*="contact"]{display:none}}
@media(max-width:640px){.hdr nav a:not(.cart-link){display:none}.hdr .wrap{height:60px}}

/* buttons / forms */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;font:700 15px/1 var(--f-body);padding:15px 26px;cursor:pointer;text-decoration:none;transition:.15s}
.btn-primary{background:var(--ink);color:var(--lime)}
.btn-primary:hover{background:#222}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-d)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.fld{display:block;margin-bottom:14px}
.fld>span{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#33332f}
.fld input,.fld select,.fld textarea{width:100%;padding:13px 14px;border:1px solid #cfcfc6;border-radius:12px;background:#fff;font:inherit;color:inherit}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:2px solid var(--ink);outline-offset:0;border-color:var(--ink)}
.fld .err{color:var(--red);font-size:13px;margin-top:4px}
.fld.has-err input,.fld.has-err select{border-color:var(--red)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.row2{grid-template-columns:1fr}}
.hp{position:absolute!important;left:-9999px!important}

/* alerts */
.flash{padding:12px 16px;border-radius:12px;margin:16px 0;font-size:14px;font-weight:500}
.flash.ok{background:#e6f6ea;color:#14532d}.flash.bad{background:#fde8e8;color:#7f1d1d}

/* breadcrumbs */
.crumbs{font-size:13px;color:var(--muted);padding:18px 0 6px}
.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}.crumbs span{margin:0 6px}

/* home */
.eyebrow{position:relative;display:inline-block;font:700 12px/1 var(--f-body);letter-spacing:.12em;text-transform:uppercase;color:var(--lime);margin-bottom:14px}
.hero p.lead{margin-top:14px;max-width:640px;color:#c9c9c2;font-size:17px;position:relative}
.btn-ghost-dark{background:transparent;border-color:#4a4a4a;color:#fff}
.btn-ghost-dark:hover{border-color:#fff}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;position:relative}
.chips li{border:1px solid #333;background:#141414;color:#e2e2dc;border-radius:999px;padding:7px 14px;font-size:13px;font-weight:500}
.chips li:before{content:"✓";color:var(--lime);margin-right:7px;font-weight:700}
.cat{scroll-margin-top:84px}
.sec-intro{color:var(--muted);max-width:640px;margin:-8px 0 18px}
.benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.benefits div{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.benefits b{display:block;font-family:var(--f-head);font-size:17px;margin-bottom:6px}
.benefits span{color:var(--muted);font-size:14px;display:block}
@media(max-width:1000px){.benefits{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.benefits{grid-template-columns:minmax(0,1fr)}}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.steps li{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:22px;display:flex;flex-direction:column;gap:6px}
.steps .num{width:34px;height:34px;border-radius:50%;background:var(--lime);color:var(--ink);font:700 15px/34px var(--f-head);text-align:center;margin-bottom:6px}
.steps b{font-family:var(--f-head);font-size:18px}
.steps li span:last-child{color:#c9c9c2;font-size:14px}
@media(max-width:720px){.steps{grid-template-columns:minmax(0,1fr)}}
.faq-list{max-width:820px}
.faq .acc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px}
.faq .acc:last-of-type{border-bottom:1px solid var(--line)}
.faq .acc summary{padding:16px 18px}
.faq .acc-body{padding:0 18px 16px}
.cta-band{margin:46px 0 6px;background:var(--lime);border-radius:var(--radius-lg);padding:26px 30px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(20px,2.6vw,26px)}
.cta-band p{margin-top:4px;color:#2b2f12}
.cta-band .btn{background:var(--ink);color:var(--lime)}
.cta-band .btn:hover{background:#222}
.hero{background:var(--ink);color:#fff;padding:54px 0 60px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-40% 10% auto;height:420px;background:radial-gradient(closest-side,rgba(212,255,61,.18),transparent);pointer-events:none}
.hero h1{font-size:clamp(30px,5vw,52px);max-width:760px;position:relative}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero p{margin-top:14px;max-width:620px;color:#c9c9c2;font-size:17px;position:relative}
.hero .cta{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap;position:relative}
.sec-title{font-size:clamp(22px,3vw,30px);margin:38px 0 18px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:1000px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:720px){.grid{grid-template-columns:repeat(2,1fr);gap:12px}}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;transition:.18s;position:relative}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfcfc4}
.pcard .im{aspect-ratio:1/1;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}
.pcard .im img{width:100%;height:100%;object-fit:contain}
.pcard .bd{padding:14px 16px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.pcard h3{font-size:16px;font-weight:600;font-family:var(--f-body);line-height:1.3}
.price{font-weight:700}
.price s{color:var(--muted);font-weight:500;margin-right:6px}
.price small{font-weight:500;color:var(--muted)}
.badge{position:absolute;top:12px;left:12px;background:var(--ink);color:var(--lime);font:700 12px/1 var(--f-body);padding:7px 11px;border-radius:999px;z-index:2}
.badge.out{background:#e5e5de;color:#444}
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:46px 0 10px}
.trust div{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.trust b{display:block;font-family:var(--f-head);font-size:17px;margin-bottom:4px}
.trust span{color:var(--muted);font-size:14px}
@media(max-width:720px){.trust{grid-template-columns:minmax(0,1fr)}}

/* product */
.pdp{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:44px;align-items:start;padding:10px 0 30px}
@media(max-width:860px){.pdp{grid-template-columns:minmax(0,1fr);gap:22px}}
.pdp>*,.cart-grid>*,.co-grid>*{min-width:0}
.gal-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.gal-main img{width:100%;height:100%;object-fit:contain}
.thumbs{display:flex;gap:10px;margin-top:12px;overflow-x:auto;padding-bottom:4px}
.thumbs button{border:2px solid transparent;background:#fff;border-radius:12px;padding:0;cursor:pointer;width:72px;height:72px;flex:0 0 auto;overflow:hidden}
.thumbs button img{width:100%;height:100%;object-fit:cover}
.thumbs button[aria-current="true"]{border-color:var(--ink)}
.pdp h1{font-size:clamp(26px,3.4vw,38px)}
.pdp .price{font-size:24px;margin:12px 0 4px}
.pdp .price s{font-size:18px}
.pdp .note{color:var(--muted);font-size:14px}
.opt{margin:18px 0;border:0;padding:0;min-width:0}
.opt legend{font-weight:700;font-size:14px;margin-bottom:8px}
.opt .vals{display:flex;flex-wrap:wrap;gap:8px}
.opt label{position:relative}
.opt input{position:absolute;opacity:0;inset:0;width:100%;height:100%;cursor:pointer}
.opt label span{display:inline-block;border:1.5px solid #cfcfc6;border-radius:999px;padding:9px 16px;font-size:14px;font-weight:600;background:#fff}
.opt input:checked+span{border-color:var(--ink);background:var(--ink);color:var(--lime)}
.opt input:focus-visible+span{outline:2px solid var(--ink);outline-offset:2px}
.opt input:disabled+span{opacity:.4;text-decoration:line-through}
.qty{display:inline-flex;align-items:center;border:1.5px solid #cfcfc6;border-radius:999px;background:#fff}
.qty button{width:42px;height:44px;border:0;background:none;font-size:20px;cursor:pointer}
.qty input{width:48px;text-align:center;border:0;font:700 16px var(--f-body);background:none;-moz-appearance:textfield}
.qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none}
.buy{display:flex;gap:12px;align-items:center;margin:20px 0 10px;flex-wrap:wrap}
.buy .btn{flex:1;min-width:200px}
.stock{font-size:14px;font-weight:600}.stock.in{color:var(--green)}.stock.out{color:var(--red)}
.help{margin-top:14px;font-size:14px;color:var(--muted)}
.help a{font-weight:600;color:var(--ink)}
.perks{list-style:none;display:flex;flex-wrap:wrap;gap:6px 14px;margin:12px 0 4px;font-size:13.5px;color:#33332f}
.perks li:before{content:"✓";color:var(--green);font-weight:700;margin-right:6px}
.sticky-buy{position:fixed;left:0;right:0;bottom:0;z-index:45;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.08);transform:translateY(110%);transition:transform .2s;display:none}
.sticky-buy .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:10px;padding-bottom:10px}
.sticky-buy b{display:block;font-size:14px;line-height:1.25;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:46vw}
.sticky-buy span{font-weight:700;font-size:15px}
.sticky-buy .btn{padding:13px 20px;white-space:nowrap}
@media(max-width:860px){.sticky-buy{display:block}.sticky-buy.on{transform:none}body:has(.sticky-buy.on) .wa{bottom:78px}}
.acc{border-top:1px solid var(--line)}
.acc:last-of-type{border-bottom:1px solid var(--line)}
.acc summary{cursor:pointer;list-style:none;padding:16px 4px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.acc summary::-webkit-details-marker{display:none}
.acc summary:after{content:"+";font-size:22px;font-weight:400}
.acc[open] summary:after{content:"–"}
.acc-body{padding:0 4px 18px;color:#2d2d29;font-size:15px}
.acc-body p{margin-bottom:10px}.acc-body ul{margin:8px 0 10px 20px}.acc-body a{text-decoration:underline}
.intro{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin:16px 0;font-size:14.5px}
.intro p{margin-bottom:6px}
.video{margin-top:16px;border-radius:var(--radius);overflow:hidden;background:#000;aspect-ratio:16/9;position:relative}
.video button{all:unset;cursor:pointer;position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;gap:10px;background:linear-gradient(160deg,#111,#2a2a2a)}
.video iframe{width:100%;height:100%;border:0}
.fields{margin:18px 0;padding:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.fields h2{font-size:16px;margin-bottom:10px}

.desc{margin-top:26px}
.desc h2{font-size:20px;margin:26px 0 10px}
.desc p{margin-bottom:12px}
.desc p.lead{font-size:17px;color:#2d2d29;line-height:1.6}
.desc ul.ticks{list-style:none;margin:14px 0;display:grid;gap:8px}
.desc ul.ticks li{position:relative;padding-left:28px}
.desc ul.ticks li:before{content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:var(--lime);color:var(--ink);font:700 12px/20px var(--f-body);text-align:center}
.desc .notice{background:#fff;border:1px solid var(--line);border-left:4px solid var(--lime-d);border-radius:var(--radius);padding:13px 16px;font-size:14.5px;margin:16px 0}
.desc ol.how{list-style:none;counter-reset:s;display:grid;gap:10px;margin:8px 0 22px}
.desc ol.how li{counter-increment:s;position:relative;padding-left:40px;min-height:30px}
.desc ol.how li:before{content:counter(s);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:var(--ink);color:var(--lime);font:700 13px/28px var(--f-head);text-align:center}
.desc .fine{font-size:12.5px;color:var(--muted);margin-top:16px}
.desc ul{margin:8px 0 10px 20px}

/* cart / checkout */
.page{padding:24px 0 60px}
.page h1{font-size:clamp(26px,3.4vw,36px);margin-bottom:18px}
.cart-grid,.co-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:30px;align-items:start}
@media(max-width:900px){.cart-grid,.co-grid{grid-template-columns:minmax(0,1fr)}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px}
.panel h2{font-size:18px;margin-bottom:14px}
.line{display:grid;grid-template-columns:84px 1fr auto;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);align-items:center}
.line:last-child{border-bottom:0}
.line img{width:84px;height:84px;object-fit:contain;border:1px solid var(--line);border-radius:12px;background:#fff}
.line .t{font-weight:600;text-decoration:none}.line .v{font-size:13px;color:var(--muted)}
.line .rm{background:none;border:0;color:var(--muted);font-size:13px;text-decoration:underline;cursor:pointer;padding:0;margin-top:6px}
.line .tot{font-weight:700;text-align:right}
.line .warn{color:var(--red);font-size:13px;font-weight:600}
.sum{display:flex;flex-direction:column;gap:8px;font-size:15px}
.sum div{display:flex;justify-content:space-between;gap:10px}
.sum .grand{border-top:1px solid var(--line);padding-top:12px;margin-top:4px;font-size:19px;font-weight:800}
.sum .disc{color:var(--green)}
.ship-opt,.pay-opt{display:flex;gap:12px;align-items:flex-start;border:1.5px solid #d6d6cd;border-radius:12px;padding:14px;margin-bottom:10px;cursor:pointer;background:#fff}
.ship-opt:has(input:checked),.pay-opt:has(input:checked){border-color:var(--ink);background:#fbfbf8}
.ship-opt input,.pay-opt input{margin-top:4px;accent-color:#0a0a0a}
.ship-opt b,.pay-opt b{display:block}.ship-opt small,.pay-opt small{color:var(--muted);display:block}
.ship-opt .pr{margin-left:auto;font-weight:700}
.promo{display:flex;gap:8px;margin:14px 0}
.promo input{flex:1;padding:12px 14px;border:1px solid #cfcfc6;border-radius:999px;font:inherit}
.promo .btn{padding:12px 20px}
.empty{text-align:center;padding:60px 20px}
.thanks{max-width:760px;margin:0 auto}
.thanks .check{width:64px;height:64px;border-radius:50%;background:var(--lime);display:flex;align-items:center;justify-content:center;font-size:30px;margin-bottom:18px}

/* prose pages */
.prose{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(20px,4vw,40px);max-width:860px}
.prose p{margin-bottom:14px}.prose ul,.prose ol{margin:0 0 14px 22px}.prose a{text-decoration:underline}

/* footer */
.ftr{background:var(--ink);color:#bdbdb5;margin-top:50px;padding:46px 0 26px}
.ftr .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
@media(max-width:720px){.ftr .cols{grid-template-columns:1fr}}
.ftr img{height:20px;margin-bottom:14px}
.ftr h4{color:#fff;font:700 13px var(--f-body);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.ftr a{display:block;color:#bdbdb5;text-decoration:none;padding:4px 0;font-size:14px}.ftr a:hover{color:var(--lime)}
.ftr p{font-size:14px;max-width:340px}
.ftr .bot{border-top:1px solid #222;margin-top:30px;padding-top:18px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.wa{position:fixed;right:18px;bottom:18px;width:54px;height:54px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.25);z-index:40}
.wa svg{width:28px;height:28px;fill:#fff}
.search-form{display:flex;gap:8px;max-width:520px}
.search-form input{flex:1;padding:12px 16px;border:1px solid #cfcfc6;border-radius:999px;font:inherit}