/* gbrn.css — Golden Brain Official stylesheet */
:root{
  --gold:#B8912F; --gold2:#D9B65C; --black:#171208; --ink:#241C10; --mut:#6E6250;
  --line:#E8DFC8; --ground:#FBF7ED; --cream:#FFFDF6; --deep:#171208; --ok:#3F7A4A;
  --arch:6px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font-family:'Inter',Arial,sans-serif;color:var(--ink);background:var(--ground);line-height:1.65;font-size:18px;overflow-x:clip}
h1,h2,h3{font-family:'Sora',sans-serif;font-weight:800;line-height:1.15;margin:0 0 .5rem}
p{margin:0 0 1rem}
a{color:var(--gold);text-decoration:none}
img{max-width:100%;display:block}
.gbrn-body{overflow-x:clip}
main,section,.gbrn-hdr__in,.gbrn-foot__grid{min-width:0}

/* ── header ─────────────────────────────────────────────────────────── */
.gbrn-hdr{position:sticky;top:0;z-index:50;background:rgba(255,253,246,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.gbrn-hdr__in{max-width:1200px;margin:0 auto;padding:.8rem 1.2rem;display:flex;align-items:center;gap:1.5rem}
.gbrn-logo{display:flex;align-items:center;gap:.4rem;font-family:'Sora',sans-serif;font-weight:800;font-size:1.3rem;color:var(--ink)}
.gbrn-logo__mark{font-size:1.4rem}
.gbrn-logo__name strong{color:var(--gold)}
.gbrn-nav{display:flex;gap:1.4rem;margin-left:auto;flex-wrap:wrap}
.gbrn-nav a{color:var(--ink);font-weight:600;font-size:.95rem}
.gbrn-nav a:hover{color:var(--gold)}
.gbrn-hdr__cta{white-space:nowrap}
.gbrn-burger{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:.4rem}
.gbrn-burger span{width:22px;height:2px;background:var(--ink)}

.gbrn-btn{display:inline-block;padding:.85rem 1.6rem;border-radius:999px;font-weight:700;font-size:1rem;border:2px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}
.gbrn-btn--solid{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1A1206;box-shadow:0 6px 18px rgba(184,145,47,.35)}
.gbrn-btn--solid:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(184,145,47,.45)}
.gbrn-btn--ghost{border-color:var(--ink);color:var(--ink)}
.gbrn-btn--cream{background:var(--cream);color:var(--ink)}
.gbrn-btn--lg{padding:1.05rem 2.2rem;font-size:1.1rem}
.gbrn-btn--full{width:100%;text-align:center}

.gbrn-announce{background:var(--black);color:var(--gold2);text-align:center;font-size:.85rem;padding:.5rem 1rem;font-weight:600}

/* ── hero ───────────────────────────────────────────────────────────── */
.gbrn-hero{padding:3rem 1.2rem 2rem;background:radial-gradient(ellipse at top right,#FFF6E0,var(--ground) 60%)}
.gbrn-hero__in{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:start}
.gbrn-eye{text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;font-weight:700;color:var(--gold);margin-bottom:.5rem}
.gbrn-hero h1{font-size:2.6rem}
.gbrn-hero__bullets{list-style:none;margin:1rem 0;padding:0;display:grid;gap:.6rem}
.gbrn-hero__bullets li{display:flex;gap:.6rem;align-items:flex-start;font-weight:500}
.gbrn-tick{color:var(--ok);font-weight:800;flex-shrink:0}
.gbrn-numbox-row{display:grid;grid-template-columns:repeat(4,1fr);gap:.7rem;margin:1.3rem 0}
.gbrn-numbox{background:var(--cream);border:1px solid var(--line);border-radius:14px;padding:.8rem;text-align:center}
.gbrn-numbox__n{display:block;font-family:'Sora',sans-serif;font-weight:800;color:var(--gold);font-size:1.3rem}
.gbrn-numbox__t{font-size:.78rem;color:var(--mut);font-weight:600}
.gbrn-hero__cta{margin:1.2rem 0}
.gbrn-trust{display:flex;gap:1.2rem;flex-wrap:wrap;font-size:.85rem;color:var(--mut);font-weight:600}
.gbrn-hero__media img{border-radius:20px}
.gbrn-plate{background:var(--cream);border:1px solid var(--line);border-radius:18px;padding:1rem;margin-top:1rem}
.gbrn-plate--hero{margin-top:.8rem}
.gbrn-plate__ttl{text-align:center;font-size:.72rem;letter-spacing:.06em;font-weight:800;color:var(--mut);margin-bottom:.4rem}
.gbrn-plate__svg{width:100%;height:auto}
.gbrn-plate__cap{text-align:center;font-size:.75rem;color:var(--mut);margin-top:.4rem}
.gbrn-plate__legend{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;font-size:.75rem;color:var(--mut);margin-top:.3rem}
.gbrn-dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:.3rem}

/* ── why choose boxes ──────────────────────────────────────────────── */
.gbrn-why{padding:3rem 1.2rem;text-align:center}
.gbrn-why__in{max-width:1100px;margin:0 auto}
.gbrn-why__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:1.5rem}
.gbrn-why__card{background:var(--cream);border:1px solid var(--line);border-radius:var(--arch);padding:1.5rem 1rem;text-align:center}
.gbrn-why__card img{width:56px;height:56px;margin:0 auto .6rem;object-fit:contain}

/* ── wave CTA band ─────────────────────────────────────────────────── */
.gbrn-wave{position:relative;background:linear-gradient(135deg,var(--black),#2B2110);color:#F3E9CE;padding:3rem 1.2rem;text-align:center;overflow:hidden}
.gbrn-wave__in{position:relative;z-index:2;max-width:700px;margin:0 auto}
.gbrn-wave h2{color:#fff;font-size:1.8rem}
.gbrn-wave p{color:#E4D8B8}
.gbrn-wave__top,.gbrn-wave__bot{position:absolute;left:0;width:100%;height:40px;background:var(--ground)}
.gbrn-wave__top{top:0;clip-path:polygon(0 100%,100% 0,100% 100%)}
.gbrn-wave__bot{bottom:0;clip-path:polygon(0 0,100% 100%,0 100%)}

/* ── generic content sections ──────────────────────────────────────── */
.gbrn-what,.gbrn-ingr,.gbrn-benefits,.gbrn-pricing,.gbrn-guarantee,.gbrn-faq,.gbrn-refs,.gbrn-story,.gbrn-steps,.gbrn-reviews,.gbrn-label{padding:3.2rem 1.2rem}
.gbrn-what__in,.gbrn-ingr__in,.gbrn-benefits__in,.gbrn-pricing__in,.gbrn-guarantee__in,.gbrn-faq__in,.gbrn-refs__in,.gbrn-story__in,.gbrn-steps__in,.gbrn-reviews__in,.gbrn-label__in,.gbrn-content__in{max-width:1100px;margin:0 auto}
.gbrn-what h2,.gbrn-ingr h2,.gbrn-benefits h2,.gbrn-pricing h2,.gbrn-guarantee h2,.gbrn-faq h2,.gbrn-refs h2,.gbrn-story h2,.gbrn-steps h2,.gbrn-reviews h2,.gbrn-label h2{text-align:center;font-size:2rem;margin-bottom:.3rem}
.gbrn-research{background:var(--cream);border-left:4px solid var(--gold);border-radius:0 14px 14px 0;padding:1.2rem 1.5rem;margin:1.2rem 0}
.gbrn-research__label{text-transform:uppercase;font-size:.75rem;font-weight:800;color:var(--gold);letter-spacing:.05em}

/* ── grid + cards ───────────────────────────────────────────────────── */
.gbrn-grid{display:grid;gap:1.1rem;min-width:0}
.gbrn-grid--3{grid-template-columns:repeat(3,1fr)}
.gbrn-grid--4{grid-template-columns:repeat(4,1fr)}
.gbrn-grid--2{grid-template-columns:repeat(2,1fr)}
.gbrn-card,.gbrn-icard,.gbrn-bcard,.gbrn-quote,.gbrn-badge-card{background:var(--cream);border:1px solid var(--line);border-radius:var(--arch);padding:1.4rem;min-width:0}
.gbrn-icard__num{display:inline-block;background:var(--gold);color:#fff;width:28px;height:28px;border-radius:50%;text-align:center;line-height:28px;font-weight:800;font-size:.85rem;margin-bottom:.5rem}
.gbrn-bcard__num{color:var(--gold);font-weight:800;font-family:'Sora',sans-serif}

/* ── steps ──────────────────────────────────────────────────────────── */
.gbrn-steps__list{list-style:none;margin:1.2rem 0;padding:0;display:grid;gap:1rem}
.gbrn-steps__list li{display:flex;gap:1rem;align-items:flex-start}
.gbrn-steps__num{background:var(--gold);color:#fff;width:34px;height:34px;flex-shrink:0;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800}

/* ── pricing ────────────────────────────────────────────────────────── */
.gbrn-pricegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin:1.5rem 0;min-width:0}
.gbrn-pcard{background:var(--cream);border:2px solid var(--line);border-radius:var(--arch);padding:1.6rem;text-align:center;position:relative;min-width:0}
.gbrn-pcard__img{width:100px;height:auto;margin:0 auto .8rem}
.gbrn-pcard--best{border-color:var(--gold);box-shadow:0 10px 30px rgba(184,145,47,.2)}
.gbrn-pcard__badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--gold);color:#fff;padding:.3rem 1rem;border-radius:999px;font-size:.75rem;font-weight:800;white-space:nowrap}
.gbrn-pcard__was{text-decoration:line-through;color:var(--mut);font-size:.9rem}
.gbrn-pcard__price{font-family:'Sora',sans-serif;font-weight:800;font-size:1.8rem;color:var(--ink)}
.gbrn-pcard__price span{font-size:.9rem;font-weight:500;color:var(--mut);display:block}
.gbrn-pcard__save{color:var(--ok);font-weight:700;font-size:.85rem}

/* ── guarantee / reviews / badges ───────────────────────────────────── */
.gbrn-badge-card img{width:60px;height:60px;object-fit:contain;margin:0 auto .5rem}
.gbrn-quote{position:relative}
.gbrn-quote__stars{color:var(--gold);letter-spacing:.1em}
.gbrn-quote__init{width:38px;height:38px;border-radius:50%;background:var(--gold);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.85rem;margin-top:.8rem}
.gbrn-quote__meta{display:flex;gap:.6rem;align-items:center;margin-top:.5rem}
.gbrn-quote__name{font-weight:700;font-size:.9rem}
.gbrn-quote__loc{color:var(--mut);font-size:.8rem}

/* ── FAQ ────────────────────────────────────────────────────────────── */
.gbrn-accordion{max-width:800px;margin:1.5rem auto 0}
.gbrn-accitem{border:1px solid var(--line);border-radius:14px;margin-bottom:.7rem;background:var(--cream);overflow:hidden}
.gbrn-accitem summary{padding:1rem 1.3rem;cursor:pointer;font-weight:700;list-style:none}
.gbrn-accitem summary::-webkit-details-marker{display:none}
.gbrn-accitem__body{padding:0 1.3rem 1.1rem;color:var(--mut)}

/* ── label / supplement facts ──────────────────────────────────────── */
.gbrn-label__panel{background:var(--black);color:#F3E9CE;border-radius:20px;padding:2rem;max-width:520px;margin:1.5rem auto}
.gbrn-label__panel h3{color:#fff}
.gbrn-label__row{display:flex;justify-content:space-between;border-bottom:1px solid #3A311D;padding:.5rem 0;font-size:.9rem}
.gbrn-label__marks{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-top:1.2rem}
.gbrn-label__marks img{width:52px;height:52px;object-fit:contain}

/* ── warning ────────────────────────────────────────────────────────── */
.gbrn-warning{background:#FBEEDC;border:2px solid var(--gold);border-radius:16px;padding:1.3rem 1.5rem;margin:1.5rem 0}
.gbrn-warning__label{text-transform:uppercase;font-size:.75rem;font-weight:800;color:var(--gold);margin-bottom:.3rem}

/* ── secure checkout / timer ────────────────────────────────────────── */
.gbrn-checkout{padding:3rem 1.2rem;background:var(--cream);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.gbrn-checkout__in{max-width:700px;margin:0 auto}
.gbrn-checkout__row{display:flex;flex-direction:column;align-items:center;gap:1rem;margin-top:1rem}
.gbrn-checkout__bottle{width:160px;height:auto}
.gbrn-checkout__body{width:100%;max-width:420px}
.gbrn-checkout__cards{height:26px;width:auto;margin:.8rem auto;display:block}
.gbrn-checkout__timer{background:var(--ground);border:1px solid var(--line);border-radius:14px;padding:.8rem;margin:1rem 0}
.gbrn-checkout__clock{font-family:'Sora',sans-serif;font-weight:800;font-size:1.8rem;color:var(--gold);margin:0}

/* ── last / final CTA ───────────────────────────────────────────────── */
.gbrn-last{background:var(--black);color:#F3E9CE;padding:3rem 1.2rem}
.gbrn-last__in{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center}
.gbrn-last h2{color:#fff}
.gbrn-last__note{font-size:.85rem;color:#C9BB94}
.gbrn-last__img img{border-radius:16px}

/* ── footer ─────────────────────────────────────────────────────────── */
.gbrn-foot{background:#0F0B05;color:#C9BB94;padding:3rem 1.2rem 1.5rem}
.gbrn-foot__grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
.gbrn-foot h3{color:#fff;font-size:1rem;margin-bottom:.6rem}
.gbrn-foot a{display:block;color:#C9BB94;font-size:.9rem;margin-bottom:.4rem}
.gbrn-foot a:hover{color:var(--gold2)}
.gbrn-foot__fda{font-size:.75rem;color:#8A7D5C;margin-top:.8rem}
.gbrn-foot__bot{max-width:1200px;margin:1.5rem auto 0;padding-top:1.2rem;border-top:1px solid #2B2110;font-size:.75rem;color:#8A7D5C;text-align:center}

/* ── sticky dock ────────────────────────────────────────────────────── */
.gbrn-dock{position:fixed;left:0;right:0;bottom:0;background:var(--black);color:#fff;z-index:60;padding:.7rem 1rem;transform:translateY(100%);transition:transform .25s ease}
.gbrn-dock.gbrn-dock--show{transform:translateY(0)}
.gbrn-dock__in{max-width:1000px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.gbrn-dock__msg{font-size:.85rem}

/* ── reveal-on-scroll ───────────────────────────────────────────────── */
.gbrn-up{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease}
.gbrn-up.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){.gbrn-up{opacity:1;transform:none;transition:none}}

/* chart animation */
.gbrn-curve-line{stroke-dasharray:400;stroke-dashoffset:400;transition:stroke-dashoffset 1.4s ease}
.is-in .gbrn-curve-line{stroke-dashoffset:0}
.gbrn-nn-edge{stroke-dasharray:60;stroke-dashoffset:60;transition:stroke-dashoffset 1s ease}
.is-in .gbrn-nn-edge{stroke-dashoffset:0}
.gbrn-nn-node{opacity:0;transition:opacity .6s ease}
.is-in .gbrn-nn-node{opacity:1}
.gbrn-ig-bar{transition:height 1s ease,y 1s ease}

/* utility */
.gbrn-center{text-align:center}
.gbrn-note{font-size:.85rem;color:var(--mut)}
.gbrn-link{font-weight:700}
.gbrn-chips{display:flex;gap:.5rem;flex-wrap:wrap;margin:.8rem 0}
.gbrn-chip{background:var(--cream);border:1px solid var(--line);border-radius:999px;padding:.35rem .9rem;font-size:.8rem;font-weight:600}

/* ── responsive ─────────────────────────────────────────────────────── */
@media (max-width:980px){
  .gbrn-hero__in{grid-template-columns:1fr}
  .gbrn-why__grid,.gbrn-grid--4{grid-template-columns:repeat(2,1fr)}
  .gbrn-pricegrid,.gbrn-grid--3{grid-template-columns:1fr}
  .gbrn-foot__grid{grid-template-columns:1fr 1fr}
  .gbrn-last__in{grid-template-columns:1fr}
}
@media (max-width:640px){
  .gbrn-nav{display:none}
  .gbrn-burger{display:flex}
  .gbrn-hero h1{font-size:1.9rem}
  .gbrn-numbox-row{grid-template-columns:repeat(2,1fr)}
  .gbrn-why__grid,.gbrn-grid--4,.gbrn-grid--2{grid-template-columns:1fr 1fr}
  body{font-size:17px}
  .gbrn-hdr__in{gap:.5rem;padding:.7rem .8rem;flex-wrap:nowrap}
  .gbrn-logo{font-size:1.05rem;flex-shrink:1;min-width:0}
  .gbrn-logo__name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .gbrn-hdr__cta{margin-left:auto;padding:.55rem .9rem;font-size:.82rem;flex-shrink:0}
  .gbrn-burger{flex-shrink:0}
}