/* NRGZ — one-page product website. All visual assets are local. */
:root{--ink:#101010;--paper:#fff;--peach:#ff775c;--line:#d8d8d8;--lime:#c3df45;--pink:#f294b0;--heading:"Arial Black","Helvetica Neue",Arial,sans-serif;--body:Arial,"Helvetica Neue",sans-serif;--gutter:clamp(22px,4.5vw,88px);--section:clamp(64px,7.7vw,128px)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.5}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #3453d9;outline-offset:6px}figure,p,h1,h2,h3{margin:0}h1,h2,h3{font-family:var(--heading);font-weight:900;letter-spacing:-.065em;text-transform:uppercase}h2{font-size:clamp(36px,4.75vw,76px);line-height:1.02}h3{font-size:26px;line-height:1.1}section[id]{scroll-margin-top:20px}.outline{-webkit-text-stroke:1.3px var(--ink);color:transparent}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.section-label{margin-bottom:28px}.section-pad{padding:var(--section) var(--gutter)}.intro-copy{font-size:18px;line-height:1.6;max-width:430px}.skip-link{position:fixed;left:16px;top:-80px;z-index:100;padding:12px 20px;background:white;border:2px solid var(--ink)}.skip-link:focus{top:12px}.site-header{height:88px;position:sticky;top:0;z-index:20;padding:0 var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:30px;background:#fff;border-bottom:1px solid var(--line)}.brand{flex-shrink:0}.brand img{width:91px;height:auto}.site-header nav{display:flex;gap:32px}.site-header nav a{font-size:14px;font-weight:700;position:relative;padding:10px 0}.site-header nav a::after{content:"";position:absolute;bottom:3px;left:0;right:0;height:2px;background:var(--peach);transform:scaleX(0);transform-origin:left;transition:transform .2s}.site-header nav a:hover::after,.site-header nav a[aria-current]::after{transform:scaleX(1)}.header-link{font-size:14px;font-weight:700;border:1px solid var(--ink);border-radius:50px;padding:11px 20px;display:flex;align-items:center;gap:24px}.header-link:hover{background:var(--ink);color:white}.menu-toggle{display:none}.hero{min-height:660px;height:calc(100svh - 142px);max-height:880px;position:relative;isolation:isolate}.hero-image{position:absolute;width:61%;height:100%;right:0;top:0;object-fit:cover;object-position:56% center;z-index:-1}.hero-heading{position:absolute;left:var(--gutter);top:66px;right:var(--gutter)}.hero h1{font-size:clamp(64px,7.9vw,128px);line-height:.99;margin-top:24px;letter-spacing:-.075em}.hero h1 .outline{white-space:nowrap}.hero-intro{position:absolute;left:var(--gutter);bottom:66px;max-width:32%}.hero-intro p{font-size:clamp(18px,1.5vw,24px);line-height:1.38;font-weight:600;margin-bottom:30px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:34px;background:var(--ink);color:#fff;padding:17px 24px;border-radius:40px;font-weight:700;font-size:15px;transition:background .2s,transform .2s}.button:hover{background:#343434;transform:translateY(-2px)}.button span{font-size:22px;line-height:1}.hero-spec{display:flex;align-items:center;gap:14px;position:absolute;right:var(--gutter);bottom:58px}.hero-spec strong{display:block;font-size:28px;font-family:var(--heading);line-height:1.15;letter-spacing:-.05em}.hero-spec span{font-size:14px}.hero-spec .mini-bolt{font-size:54px;line-height:1}.hero-caption{position:absolute;right:var(--gutter);top:24px;font-size:12px;letter-spacing:.1em}.benefit-strip{display:flex;justify-content:space-around;gap:20px;background:var(--ink);color:white;padding:21px var(--gutter);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.025em}.benefit-strip span{display:flex;align-items:center;gap:18px;white-space:nowrap}.benefit-strip span::before{content:"ϟ";color:var(--peach);font-size:24px;line-height:1}.product{display:grid;grid-template-columns:1.08fr 1fr;gap:7%;align-items:center}.product-copy .intro-copy{margin-top:30px}.product-visual{position:relative}.product-visual img{width:100%;aspect-ratio:1/1.05;object-fit:cover}.product-visual figcaption{position:absolute;left:26px;bottom:24px;padding:9px 14px;background:#fff;font-size:14px;font-weight:700}.product-number{border-top:1px solid var(--line);margin-top:35px;padding-top:25px;display:flex;gap:24px;align-items:center}.product-number strong{font-size:74px;line-height:1;letter-spacing:-.07em;font-family:var(--heading);white-space:nowrap}.product-number strong span{font-size:26px;margin-left:5px;letter-spacing:-.045em}.product-number p{font-size:14px;line-height:1.5}.site-footer{background:var(--ink);color:#fff;padding:48px var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:30px}.site-footer img{filter:invert(1);width:140px;height:auto}.site-footer p{font-weight:700;text-transform:uppercase;font-size:14px;letter-spacing:.04em}.back-top{font-size:14px}.back-top span{margin-left:16px}
@media(min-width:1700px){.hero{min-height:750px}.hero-heading{top:88px}}@media(max-width:1050px){.site-header nav{gap:20px}.header-link{display:none}.hero{min-height:620px;max-height:720px;height:75svh}.hero h1{font-size:8.3vw}.hero-intro{max-width:35%}.product{gap:5%}.product-number{display:block}.product-number p{margin-top:12px}.benefit-strip{gap:16px;flex-wrap:wrap}.benefit-strip span{gap:8px}.product-visual img{aspect-ratio:4/5}}
@media(max-width:700px){html{scroll-padding-top:76px}.site-header{height:72px;gap:18px;flex-wrap:wrap}.brand img{width:78px}.menu-toggle{display:flex;border:1px solid var(--line);border-radius:40px;gap:18px;align-items:center;background:white;padding:8px 14px;font-size:14px}.menu-toggle span{font-size:18px}.site-header nav{display:flex;position:absolute;top:71px;left:0;right:0;background:white;border-bottom:1px solid var(--line);padding:18px var(--gutter);gap:14px;flex-wrap:wrap}.js .site-header nav{display:none}.js .site-header nav.is-open{display:flex;flex-direction:column;gap:2px;padding:16px var(--gutter) 24px}.site-header nav a{font-size:16px}.hero{margin-top:62px;min-height:800px;max-height:none;height:auto;padding:45px var(--gutter) 0;display:flex;flex-direction:column}.js .hero{margin-top:0}.hero-heading{position:static}.hero-heading .eyebrow{font-size:12px}.hero h1{font-size:clamp(34px,8.9vw,62px);line-height:1.06;letter-spacing:-.065em;margin-top:18px}.hero-image{width:100%;height:420px;top:auto;bottom:0;object-position:50% 50%;object-fit:cover}.hero-intro{position:static;max-width:none;margin-top:25px;padding-bottom:458px}.hero-intro p{font-size:18px;margin-bottom:19px}.button{padding:14px 21px;font-size:14px;gap:25px}.hero-spec{bottom:25px;right:var(--gutter)}.hero-spec strong{font-size:25px}.hero-spec .mini-bolt{font-size:44px}.hero-caption{top:auto;bottom:385px;left:var(--gutter);right:auto;font-size:12px}.benefit-strip{justify-content:center;gap:16px 22px;padding:20px var(--gutter);font-size:12px}.benefit-strip span::before{font-size:19px}.product{grid-template-columns:1fr;gap:35px}.product h2{font-size:clamp(36px,9vw,62px)}.product-number{display:flex;gap:22px}.product-number strong{font-size:66px}.product-number p{margin:0}.product-visual img{aspect-ratio:1}.product-visual figcaption{left:18px;bottom:18px}.section-label{margin-bottom:22px}.site-footer{align-items:flex-start;flex-wrap:wrap;padding:36px var(--gutter);gap:24px}.site-footer img{width:100px}.site-footer p{order:3;width:100%;font-size:13px}.intro-copy{font-size:17px}}
/* The product story alternates full-width visuals and generous editorial layouts. */
.flavours{border-top:1px solid var(--line);padding-top:70px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:48px}.section-heading>div{max-width:900px}.section-heading>p{font-size:16px;max-width:230px;flex-shrink:0;padding-bottom:4px}.flavours .section-heading h2{font-size:clamp(36px,4.3vw,68px);max-width:1000px}.flavours .section-heading{display:block}.flavours .section-heading>p{max-width:none;margin-top:25px}.flavour-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.flavour-image{overflow:hidden}.flavour-image img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;transition:transform .6s cubic-bezier(.2,.65,.3,1)}.flavour-card:hover .flavour-image img{transform:scale(1.035)}.flavour-card figcaption{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--ink);padding:22px 0 18px;gap:10px}.flavour-card h3{font-size:clamp(20px,2.1vw,32px)}.flavour-card figcaption>span{font-size:13px}.split-section{display:grid;grid-template-columns:1fr 1fr}.split-image{width:100%;height:100%;min-height:620px;object-fit:cover}.split-copy{padding:clamp(44px,5.5vw,90px) var(--gutter);align-self:center}.how{background:#f5f5f3}.steps{list-style:none;padding:0;margin:38px 0 0}.steps li{display:flex;gap:24px;padding:24px 0;border-top:1px solid #ccc}.steps li:last-child{padding-bottom:0}.step-number{font-size:13px;color:#545454;min-width:22px;padding-top:4px}.steps h3{font-family:var(--body);font-size:19px;letter-spacing:-.035em;text-transform:none;line-height:1.2}.steps p{font-size:16px;color:#424242;margin-top:10px;max-width:400px}.energy{display:grid;grid-template-columns:1fr 1fr;gap:70px 7%;align-items:center}.energy-copy{padding:26px 0}.feature-list,.moments,.plain-list{list-style:none;padding:0;margin:34px 0 0}.feature-list{display:grid;gap:17px}.feature-list li{display:flex;gap:16px;align-items:baseline;font-size:18px;font-weight:700}.feature-list li::before{content:"ϟ";font-size:23px;color:#bf3b22;line-height:1}.energy-photo img{width:100%;height:550px;object-fit:cover;object-position:center 55%}.anytime-photo img{width:100%;height:570px;object-fit:cover;object-position:center}.moments{display:grid;gap:0}.moments li{font-size:16px;padding:13px 0;border-bottom:1px solid var(--line)}.moments li::before{content:"/";color:#a52d15;margin-right:18px}.technology{background:var(--ink);color:#fff}.technology .outline{--ink:#fff}.technology .section-heading>p{color:#c6c6c6}.tech-visual{background:#fff5e9;color:var(--ink);overflow:hidden}.tech-visual img{width:100%;height:auto;max-height:490px;object-fit:cover}.tech-visual figcaption{background:#ff775c;padding:20px 28px;font-size:15px;font-weight:700;text-align:center}.tech-bottom{display:grid;grid-template-columns:1fr 3fr;gap:40px;padding-top:45px}.tech-bottom>h3{font-size:30px;letter-spacing:-.05em}.sensory-stages{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;gap:32px;margin:0;padding:0}.sensory-stages li{border-top:1px solid #6a6a6a;padding-top:18px}.sensory-stages span{font-size:13px;color:#ff957e}.sensory-stages h4{font-size:18px;line-height:1.25;margin:22px 0 10px;letter-spacing:-.025em}.sensory-stages p{font-size:14px;color:#c5c5c5}.formula .split-copy{padding-top:70px;padding-bottom:70px}.ingredients{margin:35px 0 0}.ingredients>div{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;border-top:1px solid var(--line)}.ingredients dt strong{display:block;font-size:17px;letter-spacing:-.025em}.ingredients dt>span{display:block;font-size:14px;line-height:1.4;color:#545454;max-width:260px;margin-top:5px}.ingredients dd{margin:0;white-space:nowrap;font-size:34px;letter-spacing:-.055em;font-family:var(--heading);font-weight:900}.ingredients dd small{font-family:var(--body);font-size:15px;letter-spacing:0}.caffeine-total{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px;background:var(--peach);margin-top:6px}.caffeine-total p{font-size:17px;line-height:1.3;font-weight:700}.caffeine-total p>span{font-size:14px;font-weight:400}.caffeine-total>strong{font-family:var(--heading);font-size:55px;line-height:1;letter-spacing:-.065em}.caffeine-total strong>span{font-size:23px}.format{display:grid;grid-template-columns:1fr 1fr;gap:7%;align-items:center;border-top:1px solid var(--line)}.format-image{width:100%;height:670px;object-fit:cover}.pack-number{display:flex;gap:28px;align-items:center;margin-top:36px}.pack-number>strong{font-family:var(--heading);font-size:112px;letter-spacing:-.07em;line-height:.95}.pack-number p{font-size:18px;font-weight:700}.pack-number p>span{font-size:14px;font-weight:400}.plain-list{border-top:1px solid var(--line);padding-top:21px;margin-top:28px}.plain-list li{font-size:15px;padding:6px 0}.plain-list li::before{content:"+";margin-right:14px}.retail{background:var(--lime)}.retail .split-image{max-height:840px;object-position:center 53%}.retail-points{margin-top:35px}.retail-points>div{padding:22px 0;border-top:1px solid #849a38}.retail-points>div:last-child{padding-bottom:0}.retail-points h3{font-family:var(--body);font-size:18px;line-height:1.25;letter-spacing:-.03em;text-transform:none}.retail-points p{font-size:15px;margin-top:7px;max-width:390px}.closing{text-align:center;background:var(--peach)}.closing h2{font-size:clamp(40px,7.6vw,122px);line-height:1.01;margin:32px 0 36px}.closing .button{min-width:225px}.closing .outline{-webkit-text-stroke:1.5px var(--ink)}
@media(max-width:1050px){.split-copy{padding:45px 32px}.split-copy h2{font-size:5vw}.split-image{min-height:620px}.energy{gap:50px 5%}.energy-photo img{height:490px}.anytime-photo img{height:520px}.tech-bottom{grid-template-columns:1fr}.tech-bottom>h3 br{display:none}.format-image{height:620px}.caffeine-total{padding:20px}.caffeine-total>strong{font-size:46px}.ingredients dd{font-size:30px}}
@media(max-width:700px){.flavours{padding-top:55px}.section-heading{display:block;margin-bottom:30px}.section-heading>p{max-width:none;margin-top:22px}.flavours .section-heading h2{font-size:clamp(34px,8.6vw,60px)}.flavour-grid{grid-template-columns:1fr;gap:32px}.flavour-image img{aspect-ratio:1/1.04}.flavour-card figcaption{padding:17px 0}.flavour-card h3{font-size:26px}.split-section{grid-template-columns:1fr}.split-image{height:470px;min-height:0;max-height:none}.split-copy{padding:52px var(--gutter)}.split-copy h2{font-size:clamp(38px,10vw,64px)}.how .split-image{object-position:center 42%}.steps{margin-top:30px}.steps li{gap:17px;padding:23px 0}.steps h3{font-size:18px}.energy{grid-template-columns:1fr;gap:36px}.energy-copy{padding:0}.energy h2{font-size:clamp(38px,10vw,64px)}.feature-list{gap:14px;margin-top:28px}.feature-list li{font-size:17px}.energy-photo img{height:440px;object-position:center 63%}.anytime-copy{grid-row:3;margin-top:22px}.anytime-photo img{height:460px}.tech-visual{margin:0 calc(-1 * var(--gutter))}.tech-visual img{min-height:210px;object-fit:contain}.tech-visual figcaption{font-size:14px;padding:21px var(--gutter);text-align:left}.tech-bottom{padding-top:35px;gap:28px}.sensory-stages{grid-template-columns:1fr;gap:25px}.sensory-stages h4{margin:10px 0 6px}.sensory-stages p{font-size:15px}.formula .split-image{height:450px}.formula .split-copy{padding:52px var(--gutter)}.ingredients>div{gap:18px}.ingredients dt>span{max-width:210px}.caffeine-total>strong{font-size:50px}.format{grid-template-columns:1fr;gap:38px}.format h2{font-size:clamp(38px,10vw,64px)}.pack-number>strong{font-size:100px}.format-image{height:auto;aspect-ratio:1/1.1;object-fit:cover}.retail .split-image{height:480px}.closing h2{font-size:clamp(34px,8.8vw,61px)}.closing .outline{-webkit-text-stroke:1px var(--ink)}.closing .eyebrow{font-size:12px}}
/* Keep directional icons consistent on Safari, which renders some arrows as emoji. */
.direction-icon{width:22px;height:22px;flex:0 0 22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* Mobile cover: the original photograph fills the opening screen behind the copy. */
@media(max-width:700px){
  :root{--mobile-peach:#ffab90}
  .site-header{background:var(--mobile-peach);border-bottom-color:rgba(16,16,16,.12)}
  .menu-toggle{background:rgba(255,255,255,.18);border-color:rgba(16,16,16,.3);min-height:44px}
  .site-header nav{background:#ffb69f;border-bottom-color:rgba(16,16,16,.12)}
  .hero{
    min-height:640px;
    min-height:max(640px,calc(100svh - 72px));
    height:auto;
    max-height:none;
    padding:32px var(--gutter) 30px;
    background:var(--mobile-peach);
    overflow:hidden;
  }
  .hero-image{
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    object-position:44% 50%;
    z-index:-2;
  }
  .hero::before{
    content:"";
    position:absolute;
    inset:0;
    z-index:-1;
    pointer-events:none;
    background:linear-gradient(180deg,rgba(255,171,144,.96) 0%,rgba(255,171,144,.68) 19%,rgba(255,171,144,0) 38%,rgba(255,171,144,0) 62%,rgba(255,171,144,.58) 78%,rgba(255,171,144,.97) 100%);
  }
  .hero-heading{position:relative;inset:auto}
  .hero-heading .eyebrow{font-size:12px;letter-spacing:.105em}
  .hero h1{display:flex;flex-direction:column;align-items:flex-start;font-size:clamp(48px,14vw,86px);line-height:1;letter-spacing:-.075em;margin-top:16px}
  .hero h1>br{display:none}
  .hero h1 .outline{font-size:clamp(27px,8.55vw,60px);line-height:1.12;letter-spacing:-.065em;-webkit-text-stroke:1.15px var(--ink)}
  .hero-intro{position:relative;inset:auto;max-width:none;margin-top:auto;padding:clamp(255px,38svh,380px) 0 0}
  .hero-intro p{font-size:18px;line-height:1.35;margin-bottom:20px;max-width:300px}
  .hero .button{min-height:50px;gap:26px;padding:14px 22px;font-size:15px}
  .hero-spec{top:48%;bottom:auto;right:var(--gutter);gap:8px;padding:10px 12px;border:1px solid rgba(16,16,16,.16);border-radius:3px;background:rgba(255,202,177,.88)}
  .hero-spec span{font-size:12px}
  .hero-spec strong{font-size:23px}
  .hero-spec .mini-bolt{font-size:35px}
  .hero-caption{display:none}
}
@media(max-width:700px) and (max-height:700px){
  .hero{min-height:600px;padding-top:26px;padding-bottom:26px}
  .hero-intro{padding-top:250px}
  .hero-spec{top:49%}
}

@media(max-width:380px){.product h2{font-size:28px}.split-copy h2,.energy h2,.format h2{font-size:32px}.ingredients dt>span{max-width:175px}.ingredients dd{font-size:27px}.product-number{gap:15px}.product-number strong{font-size:58px}.benefit-strip{gap:14px 18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}