/* GoldenBrain — goldensbrain.com — prefix gbrn- */
:root{
  --ink:#1C1712;
  --ink-soft:#5C5347;
  --gold:#B9862A;
  --gold-dark:#8B6318;
  --gold-light:#EBD8AC;
  --charcoal:#171310;
  --charcoal-2:#2A231A;
  --cream:#FDF8EF;
  --cream-2:#F3E9D4;
  --line:rgba(28,23,18,.14);
  --white:#FFFFFF;
  --good:#2F7A4F;
  --warn:#8A5A15;
  --radius:14px;
  --shadow:0 18px 40px -18px rgba(28,23,18,.32);
  --font-head:'Outfit',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-body:'Source Sans 3',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;max-width:100%;overflow-x:clip}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);background:var(--white);
  font-size:18px;line-height:1.65;max-width:100%;overflow-x:clip;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink);line-height:1.2;margin:0 0 .5em;font-weight:800}
h1{font-size:clamp(2rem,4.2vw,3.1rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.4rem}
h4{font-size:1.1rem;margin-bottom:.4em}
p{margin:0 0 1em}
a{color:var(--gold-dark)}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
ul{margin:0;padding:0;list-style:none}
table{max-width:100%}
.gbrn-wrap{max-width:1180px;margin:0 auto;padding:0 20px;max-width:min(1180px,100%)}
.gbrn-sec{padding:70px 0}
.gbrn-sec-blush{background:var(--cream)}
.gbrn-sec-dark{background:linear-gradient(160deg,#171310,#2A231A);color:var(--gold-light)}
.gbrn-sec-dark h2,.gbrn-sec-dark h3{color:#fff}
.gbrn-sec-dark p{color:#C9BBA0}
.gbrn-logo,.gbrn-links a,.gbrn-btn,.gbrn-btn-ghost,.gbrn-foot-nav a,.gbrn-foot-legal a,.gbrn-rel a{text-decoration:none}

.gbrn-strip{background:var(--charcoal);color:var(--gold-light);font-size:13.5px;padding:9px 12px;display:flex;gap:24px;justify-content:center;flex-wrap:wrap;text-align:center}
.gbrn-strip b{color:var(--gold)}

.gbrn-nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.gbrn-nav .gbrn-wrap{display:flex;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px;gap:12px}
.gbrn-logo{font-family:var(--font-head);font-weight:700;font-size:1.5rem;color:var(--ink);white-space:nowrap}
.gbrn-logo em{font-style:normal;color:var(--gold-dark)}
.gbrn-links{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.gbrn-links a{color:var(--ink);font-weight:700;font-size:14.5px}
.gbrn-links a:hover{color:var(--gold-dark)}
.gbrn-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink);cursor:pointer}
@media(max-width:860px){
  .gbrn-links{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:16px 20px 22px;border-bottom:1px solid var(--line);display:none;gap:14px}
  .gbrn-links.open{display:flex}
  .gbrn-toggle{display:block}
}

.gbrn-btn{display:inline-block;background:linear-gradient(160deg,var(--gold),var(--gold-dark));color:#fff;font-weight:800;padding:14px 26px;border-radius:999px;box-shadow:0 12px 26px -10px rgba(139,99,24,.55);transition:transform .15s ease,box-shadow .15s ease;border:0;cursor:pointer;font-family:var(--font-body)}
.gbrn-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -10px rgba(139,99,24,.65)}
.gbrn-btn-ghost{display:inline-block;border:2px solid var(--ink);color:var(--ink);font-weight:800;padding:12px 24px;border-radius:999px}
.gbrn-btn-ghost:hover{background:var(--cream-2)}
.gbrn-btn-full{width:100%;text-align:center}
.gbrn-mid{text-align:center}

/* HERO */
.gbrn-hero{padding:40px 0 10px;background:radial-gradient(1000px 460px at 88% -10%,#F3E9D4 0%,transparent 60%),var(--white)}
.gbrn-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
@media(max-width:940px){.gbrn-hero-grid{grid-template-columns:1fr}}
.gbrn-pill{display:inline-block;background:var(--cream-2);color:var(--gold-dark);font-weight:800;font-size:13.5px;padding:8px 16px;border-radius:999px}
.gbrn-hero-copy h1{margin-top:16px}
.gbrn-hero-copy em{font-style:normal;color:var(--gold-dark)}
.gbrn-hero-para{color:var(--ink-soft);font-size:18px;margin:14px 0 18px}
.gbrn-check{margin:18px 0;display:flex;flex-direction:column;gap:10px}
.gbrn-check li{position:relative;padding-left:28px;color:var(--ink-soft)}
.gbrn-check li::before{content:'✓';position:absolute;left:0;top:0;color:var(--good);font-weight:800}
.gbrn-numbox-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0}
@media(max-width:700px){.gbrn-numbox-grid{grid-template-columns:repeat(2,1fr)}}
.gbrn-numbox{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 10px;text-align:center;min-width:0}
.gbrn-numbox b{display:block;font-family:var(--font-head);font-size:1.5rem;color:var(--gold-dark)}
.gbrn-numbox span{font-size:12.5px;color:var(--ink-soft)}
.gbrn-hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin:20px 0 14px}
.gbrn-hero-trust{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-soft)}
.gbrn-hero-trust span::before{content:'• '}
.gbrn-hero-trust span:first-child::before{content:''}
.gbrn-hero-banner{border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:var(--charcoal);display:flex;align-items:center;justify-content:center;padding:20px}
.gbrn-hero-banner img{max-height:440px;width:auto;margin:0 auto}

.gbrn-diagram{margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;max-width:100%;overflow:hidden}
.gbrn-diagram h5{font-family:var(--font-body);font-weight:800;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--gold-dark);margin:0 0 10px;text-align:center}
.gbrn-diagram svg{width:100%;height:auto;max-width:100%;display:block}
.gbrn-diagram .cap{font-size:11px;color:#9C9080;text-align:center;margin-top:10px;font-style:italic}
.gbrn-legend{display:flex;justify-content:center;gap:18px;margin-top:8px;font-size:12px;color:var(--ink-soft);flex-wrap:wrap}
.gbrn-legend span{display:inline-flex;align-items:center;gap:6px}
.gbrn-legend i{width:10px;height:10px;border-radius:3px;display:inline-block}

.gbrn-node{opacity:0;transform:scale(.6);transition:opacity .5s ease,transform .5s cubic-bezier(.34,1.56,.64,1)}
.is-in .gbrn-node{opacity:1;transform:scale(1)}
.gbrn-path{stroke-dasharray:400;stroke-dashoffset:400;transition:stroke-dashoffset 1.2s ease}
.is-in .gbrn-path{stroke-dashoffset:0}
.gbrn-bar{transform-box:fill-box;transform-origin:bottom;transform:scaleY(0);transition:transform .9s cubic-bezier(.2,.7,.3,1)}
.is-in .gbrn-bar{transform:scaleY(1)}

.gbrn-wave{position:relative;background:linear-gradient(120deg,var(--gold-dark),#5C420F);color:#fff;padding:40px 0;overflow:hidden}
.gbrn-wave::before{content:'';position:absolute;inset:0;background:url('data:image/svg+xml;utf8,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 1200 120%22><path d=%22M0,60 C300,120 900,0 1200,60 L1200,120 L0,120 Z%22 fill=%22rgba(255,255,255,0.08)%22/></svg>');background-size:cover;background-position:bottom}
.gbrn-wave-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.gbrn-wave h3{color:#fff;margin:0}
.gbrn-wave p{color:var(--gold-light);margin:4px 0 0}

.gbrn-head{max-width:720px;margin:0 auto 36px;text-align:center}
.gbrn-eyebrow{display:inline-block;font-weight:800;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:10px}
.gbrn-head p{color:var(--ink-soft)}

.gbrn-grid{display:grid;gap:20px;max-width:100%}
.gbrn-g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.gbrn-g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.gbrn-g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:900px){.gbrn-g4{grid-template-columns:repeat(2,minmax(0,1fr))}.gbrn-g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.gbrn-g4,.gbrn-g3,.gbrn-g2{grid-template-columns:minmax(0,1fr)}}
.gbrn-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-width:0}
.gbrn-card p{color:var(--ink-soft);margin-bottom:0}
.gbrn-card-badge{text-align:center}
.gbrn-card-badge img{width:60px;height:auto;margin:0 auto 12px;object-fit:contain}
.gbrn-idx{width:32px;height:32px;border-radius:8px;background:var(--cream-2);color:var(--gold-dark);font-family:var(--font-head);font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.gbrn-idx-v{background:var(--gold-dark);color:#fff}

.gbrn-split{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center;max-width:100%}
@media(max-width:900px){.gbrn-split{grid-template-columns:minmax(0,1fr)}}
.gbrn-split img{max-width:100%}
.gbrn-split-copy p{color:var(--ink-soft)}
.gbrn-callout{background:var(--cream);border-left:4px solid var(--gold-dark);border-radius:10px;padding:16px 18px;font-size:14.5px;color:var(--ink-soft)}
.gbrn-callout b{color:var(--ink)}

.gbrn-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:100%}
@media(max-width:760px){.gbrn-list{grid-template-columns:minmax(0,1fr)}}
.gbrn-list li{background:#fff;border:1px solid var(--line);border-left:4px solid var(--gold-dark);border-radius:12px;padding:16px 18px;color:var(--ink-soft)}
.gbrn-list li b{display:block;color:var(--ink);margin-bottom:4px;font-family:var(--font-head);font-weight:700}

.gbrn-rev-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.gbrn-rev-head img{width:48px;height:48px;border-radius:50%;object-fit:cover;flex-shrink:0}
.gbrn-rev-name{font-weight:800;color:var(--ink);font-size:15px}
.gbrn-rev-sub{font-size:12.5px;color:var(--ink-soft)}
.gbrn-stars{color:#D8A21B;letter-spacing:2px;margin-bottom:8px}
.gbrn-board{display:flex;justify-content:center;gap:40px;margin-top:30px;flex-wrap:wrap}
.gbrn-board div{text-align:center}
.gbrn-board b{display:block;font-family:var(--font-head);font-size:1.7rem;color:var(--gold-dark)}
.gbrn-board span{font-size:12.5px;color:var(--ink-soft)}

.gbrn-plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:start;max-width:100%}
@media(max-width:900px){.gbrn-plans{grid-template-columns:minmax(0,1fr)}}
.gbrn-plan{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;text-align:center;position:relative;min-width:0}
.gbrn-plan.top{border:2px solid var(--gold);box-shadow:var(--shadow);transform:translateY(-6px)}
@media(max-width:900px){.gbrn-plan.top{transform:none}}
.gbrn-badge{display:inline-block;background:var(--gold-dark);color:#fff;font-size:11.5px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;padding:6px 14px;border-radius:999px;margin-bottom:12px}
.gbrn-badge-dark{background:var(--charcoal)}
.gbrn-plan img.pk{max-width:160px;margin:0 auto 14px}
.gbrn-plan-ttl{font-family:var(--font-head);font-weight:700;font-size:1.25rem;color:var(--ink)}
.gbrn-plan-sub{font-size:12.5px;color:var(--ink-soft);margin-bottom:10px}
.gbrn-plan-price{font-family:var(--font-head);font-size:2.3rem;font-weight:700;color:var(--ink)}
.gbrn-plan-price small{font-size:.85rem;font-weight:500;color:var(--ink-soft)}
.gbrn-plan-was{color:#C9BBA0;text-decoration:line-through;font-size:13.5px;margin-top:2px}
.gbrn-plan-tot{font-weight:800;margin:6px 0 2px}
.gbrn-plan-ship{color:var(--good);font-weight:700;font-size:13.5px;margin-bottom:12px}
.gbrn-plan-ship.pay{color:var(--ink-soft);font-weight:600}
.gbrn-plan ul{margin:14px 0;text-align:left;display:flex;flex-direction:column;gap:8px}
.gbrn-plan ul li{position:relative;padding-left:22px;font-size:14px;color:var(--ink-soft)}
.gbrn-plan ul li::before{content:'✓';position:absolute;left:0;color:var(--good);font-weight:800}
.gbrn-plan img.cards{max-width:190px;margin:12px auto 0}

.gbrn-flag{background:var(--cream-2);border:1px solid #E0CB9A;border-radius:12px;padding:16px 20px;color:var(--gold-dark)}
.gbrn-flag b{color:var(--ink)}

.gbrn-guar{display:grid;grid-template-columns:.5fr 1fr;gap:36px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:36px;max-width:100%}
@media(max-width:820px){.gbrn-guar{grid-template-columns:minmax(0,1fr);padding:26px}}
.gbrn-guar p{color:var(--ink-soft)}

.gbrn-narrow{max-width:800px;margin:0 auto}
.gbrn-steps{display:flex;flex-direction:column;gap:12px}
.gbrn-step{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;align-items:flex-start}
.gbrn-step .n{width:34px;height:34px;border-radius:50%;background:var(--gold-dark);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-family:var(--font-head)}
.gbrn-step h4{margin-bottom:4px}
.gbrn-step p{color:var(--ink-soft);margin:0}

.gbrn-shipband{background:var(--charcoal);color:#fff;padding:22px 0;text-align:center}
.gbrn-shipband strong{color:var(--gold)}

.gbrn-table{width:100%;border-collapse:collapse;margin-top:8px;font-size:14.5px}
.gbrn-table-wrap{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
.gbrn-table th,.gbrn-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.gbrn-table th{font-family:var(--font-head);color:var(--ink);font-size:12px;text-transform:uppercase;letter-spacing:.03em}
.gbrn-table td{color:var(--ink-soft)}

.gbrn-faq-row{border-bottom:1px solid var(--line)}
.gbrn-faq-btn{width:100%;text-align:left;background:none;border:0;padding:18px 0;font-family:var(--font-head);font-weight:700;font-size:16px;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.gbrn-faq-btn::after{content:'+';font-size:20px;color:var(--gold-dark);flex-shrink:0;transition:transform .2s ease}
.gbrn-faq-btn[aria-expanded="true"]::after{transform:rotate(45deg)}
.gbrn-faq-body{max-height:0;overflow:hidden;transition:max-height .25s ease}
.gbrn-faq-body p{color:var(--ink-soft);padding-bottom:16px;margin:0}

.gbrn-refs li{border-bottom:1px solid var(--line);padding:12px 0}
.gbrn-refs a{font-weight:700;color:var(--gold-dark);word-break:break-word}

.gbrn-rel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:100%}
@media(max-width:800px){.gbrn-rel{grid-template-columns:minmax(0,1fr)}}
.gbrn-rel a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.gbrn-rel a:hover{border-color:var(--gold-dark)}
.gbrn-rel b{display:block;color:var(--ink);font-family:var(--font-head);margin-bottom:6px}
.gbrn-rel span{font-size:13.5px;color:var(--ink-soft)}

.gbrn-final{background:linear-gradient(160deg,#171310,#2A231A);border-radius:22px;padding:48px 28px;text-align:center;color:#fff;max-width:100%}
.gbrn-final h2{color:#fff}
.gbrn-final p{color:#C9BBA0}
.gbrn-final img{margin:0 auto 16px}
.gbrn-final .old{text-decoration:line-through;color:#8A7E68}
.gbrn-final .new{font-family:var(--font-head);font-size:1.7rem;color:var(--gold-light);margin-bottom:16px}
.gbrn-final .sm{font-size:12.5px;color:#B0A387;margin-top:12px}

.gbrn-pay{display:flex;align-items:center;justify-content:center;gap:28px;flex-wrap:wrap;text-align:center}
.gbrn-pay img{max-height:36px;width:auto}

.gbrn-foot{background:var(--charcoal);color:#C9BBA0;padding:48px 0 28px}
.gbrn-foot-nav,.gbrn-foot-legal{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin-bottom:14px}
.gbrn-foot-nav a,.gbrn-foot-legal a{color:var(--gold-light);font-weight:700;font-size:14px}
.gbrn-foot-legal a{color:#C9BBA0;font-weight:500}
.gbrn-foot hr{border:none;border-top:1px solid rgba(255,255,255,.14);margin:20px 0}
.gbrn-foot p{font-size:13.5px;color:#D6C8AB;max-width:920px;margin:0 auto 12px}
.gbrn-foot b{color:var(--gold-light)}
.gbrn-foot .cr{text-align:center;font-size:12.5px;color:#9C9080;margin-top:16px}

.gbrn-sticky{position:fixed;left:0;right:0;bottom:0;z-index:50;background:#fff;border-top:1px solid var(--line);box-shadow:0 -10px 24px -14px rgba(28,23,18,.3);padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:14px;transform:translateY(0);transition:transform .25s ease}
.gbrn-sticky.hide{transform:translateY(110%)}
.gbrn-sticky .t b{display:block;color:var(--ink);font-size:14px}
.gbrn-sticky .t small{color:var(--ink-soft);font-size:12px}
@media(min-width:860px){.gbrn-sticky{display:none}}

[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none;transition:none}}

.gbrn-chart{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;max-width:100%;overflow:hidden}
.gbrn-chart svg{width:100%;height:auto;max-width:100%;display:block}
.gbrn-chart .cap{font-size:11.5px;color:#9C9080;margin-top:10px;font-style:italic}

.gbrn-legal-body{font-family:var(--font-body);color:var(--ink);max-width:800px;margin:0 auto;padding:44px 20px 70px;line-height:1.7}
.gbrn-legal-nav{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line)}
.gbrn-legal-nav a{font-family:var(--font-head);font-weight:700;color:var(--ink)}
.gbrn-legal-body h1{margin-bottom:.3em}
.gbrn-legal-body h2{font-size:1.2rem;margin-top:1.6em}
.gbrn-legal-body p,.gbrn-legal-body li{color:var(--ink-soft)}
.gbrn-legal-body .updated{color:#9C9080;font-size:13.5px;margin-bottom:2em}

.gbrn-blog-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.gbrn-blog-hero{padding:44px 0 10px}
.gbrn-post-body p,.gbrn-post-body li{color:var(--ink-soft)}
.gbrn-post-body h2{margin-top:1.4em}
.gbrn-progress{position:fixed;top:0;left:0;height:3px;background:var(--gold-dark);z-index:60;width:0%}

.gbrn-exit{position:fixed;inset:0;background:rgba(28,23,18,.6);display:none;align-items:center;justify-content:center;z-index:70;padding:20px}
.gbrn-exit.open{display:flex}
.gbrn-exit-card{background:#fff;border-radius:16px;max-width:400px;width:100%;padding:30px 26px;text-align:center;position:relative}
.gbrn-exit-close{position:absolute;top:12px;right:16px;background:none;border:0;font-size:20px;color:var(--ink-soft);cursor:pointer}
.gbrn-exit-card h3{margin-bottom:10px}
.gbrn-exit-card p{color:var(--ink-soft)}

.gbrn-totop{display:none;position:fixed;right:20px;bottom:86px;width:44px;height:44px;border-radius:50%;background:var(--gold-dark);color:#fff;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow);z-index:45;font-size:17px}
@media(min-width:860px){.gbrn-totop{bottom:26px}}

.gbrn-404{text-align:center;padding:100px 20px}

@media(max-width:860px){
  .gbrn-btn{font-weight:500}
}