:root {
  --black: #08090b;
  --panel: #111317;
  --panel-2: #171a1f;
  --silver: #c8cbd0;
  --white: #f5f6f7;
  --muted: #9da2aa;
  --line: rgba(255,255,255,.13);
  --accent: #e7e9ec;
  --display: "Bahnschrift", "Aptos Display", "Segoe UI Variable Display", "Segoe UI", sans-serif;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--black); color: var(--white); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 99; padding: .7rem 1rem; background: white; color: black; }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 2rem; min-height: 72px; padding: 0 max(24px, calc((100vw - var(--max))/2)); background: rgba(8,9,11,.88); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; font-weight: 700; letter-spacing: .22em; font-size: .82rem; }
.brand img { border-radius: 50%; }
.brand span span { color: var(--muted); font-weight: 400; }
nav { display: flex; align-items: center; gap: 1.8rem; }
nav a, footer a { color: var(--muted); text-decoration: none; font-size: .84rem; }
nav a:hover, nav a:focus-visible, footer a:hover, footer a:focus-visible { color: var(--white); }
.menu-button { display: none; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: white; padding: .55rem .9rem; }

.hero { position: relative; min-height: 720px; overflow: hidden; display: grid; align-items: center; background: url("og.png") center/cover no-repeat; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,9,11,.96) 0%, rgba(8,9,11,.67) 48%, rgba(8,9,11,.28) 100%), linear-gradient(0deg, var(--black), transparent 34%); }
.hero-copy { position: relative; z-index: 2; width: min(720px, calc(100% - 48px)); margin: 0 auto; transform: translateX(min(-20vw, -210px)); padding-top: 1rem; }
.eyebrow { margin: 0 0 1rem; color: var(--silver); font-size: .74rem; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; }
h1 { max-width: 720px; margin: 0; font-size: clamp(3.2rem, 7vw, 6.9rem); line-height: .96; letter-spacing: -.06em; }
h1, h2, h3, .gear-card strong { font-family: var(--display); font-weight: 700; }
.lede { max-width: 650px; margin: 1.8rem 0 0; color: #c5c8ce; font-size: clamp(1.05rem, 2vw, 1.3rem); }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; border-radius: 999px; padding: 0 1.4rem; text-decoration: none; font-weight: 700; font-size: .9rem; }
.button.primary { background: var(--white); color: var(--black); }
.button.amazon { border: 1px solid rgba(255,255,255,.55); background: linear-gradient(135deg,#e7e9ec,#aeb4bd); color: #08090b; box-shadow: 0 10px 34px rgba(0,0,0,.26); }
.button.amazon span { margin-left: .45rem; }
.button.preworkout { border: 1px solid rgba(255,255,255,.28); background: rgba(16,18,22,.76); box-shadow: inset 0 0 0 1px rgba(255,255,255,.04); }
.button.preworkout span { margin-left: .45rem; }
.button.secondary { border: 1px solid rgba(255,255,255,.26); background: rgba(0,0,0,.28); }
.button:hover { transform: translateY(-2px); }
.hero-mark { position: absolute; right: 8vw; bottom: 8vh; color: rgba(255,255,255,.06); font-size: 34vw; font-weight: 900; line-height: .7; transform: skew(-10deg); }

.section { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 110px 0; }
.intro { display: grid; grid-template-columns: 1fr 2fr; gap: 2rem 7rem; border-bottom: 1px solid var(--line); }
.intro h2, .section-heading h2, .principles h2, .connect h2, .legal h2 { margin: 0; font-size: clamp(2.2rem, 4vw, 4.2rem); line-height: 1.02; letter-spacing: -.045em; }
.intro > p:last-child { max-width: 670px; margin: 0; color: #c2c6cc; font-size: 1.25rem; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 3rem; }
.section-heading > p { max-width: 450px; color: var(--muted); }
.research { border-bottom: 1px solid var(--line); }
.research-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; padding: 1px; background: var(--line); }
.research-loading { grid-column: 1 / -1; margin: 0; padding: 2rem; background: var(--panel); color: var(--muted); }
.research-card { position: relative; min-height: 330px; display: flex; flex-direction: column; padding: 2rem; overflow: hidden; background: linear-gradient(145deg,#15181d,#0e1013); text-decoration: none; transition: background .2s, transform .2s; }
.research-card::after { content: ""; position: absolute; right: -42px; bottom: -52px; width: 150px; height: 150px; border: 1px solid rgba(255,255,255,.1); transform: rotate(45deg); }
.research-card:hover, .research-card:focus-visible { z-index: 1; background: linear-gradient(145deg,#1d2127,#111419); transform: translateY(-3px); }
.research-card > span { color: var(--muted); font-size: .7rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.research-card strong { position: relative; max-width: 420px; margin-top: .8rem; font-family: var(--display); font-size: 1.65rem; line-height: 1.15; }
.research-card small { position: relative; max-width: 440px; margin: .7rem 0 1.5rem; color: var(--muted); font-size: .88rem; }
.research-card .finding { position: relative; max-width: 470px; margin: 0 0 1.5rem; padding-left: 1rem; border-left: 2px solid rgba(255,255,255,.34); color: #d4d7dc; font-size: .94rem; line-height: 1.5; }
.research-card .finding em { color: var(--white); font-style: normal; font-weight: 700; }
.research-card b { position: relative; margin-top: auto; font-size: .84rem; }
.research-note { margin: 1.25rem 0 0; color: var(--muted); font-size: .84rem; }
.research-archive { margin-top: 2rem; border-block: 1px solid var(--line); }
.research-archive summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.2rem 0; cursor: pointer; list-style: none; }
.research-archive summary::-webkit-details-marker { display: none; }
.research-archive summary::after { content: "+"; color: var(--silver); font-size: 1.5rem; font-weight: 300; }
.research-archive[open] summary::after { content: "−"; }
.research-archive summary span { font-family: var(--display); font-size: 1.25rem; font-weight: 700; }
.research-archive summary small { margin-left: auto; color: var(--muted); font-size: .82rem; }
.archive-list { padding: 1.4rem 0 1.8rem; border-top: 1px solid var(--line); }
.archive-empty { margin: 0; color: var(--muted); }
.archive-edition + .archive-edition { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.archive-edition h3 { margin: 0 0 1rem; font-size: 1rem; color: var(--silver); }
.archive-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; padding: 1px; background: var(--line); }
.archive-card { display: flex; flex-direction: column; min-height: 250px; padding: 1.4rem; background: #101216; text-decoration: none; }
.archive-card > span { color: var(--muted); font-size: .68rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.archive-card strong { margin-top: .55rem; font-family: var(--display); font-size: 1.2rem; }
.archive-card small { margin: .5rem 0 1rem; color: var(--muted); font-size: .8rem; }
.archive-card .finding { margin: 0 0 1rem; color: #d4d7dc; font-size: .86rem; line-height: 1.5; }
.archive-card .finding em { color: var(--white); font-style: normal; font-weight: 700; }
.archive-card b { margin-top: auto; font-size: .78rem; }
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card { min-height: 310px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 2.4rem 2rem; background: var(--panel); text-align: center; }
.card::before { content: ""; width: 48px; height: 48px; margin-bottom: 1.3rem; border: 1px solid rgba(255,255,255,.28); border-radius: 50%; background: radial-gradient(circle, var(--white) 0 4px, transparent 5px), linear-gradient(135deg, transparent 44%, rgba(255,255,255,.2) 45% 55%, transparent 56%); box-shadow: 0 0 0 8px rgba(255,255,255,.025); }
.card:nth-child(2)::before { border-radius: 30% 70% 58% 42%; transform: rotate(18deg); }
.card:nth-child(3)::before { border-radius: 50% 10% 50% 10%; transform: rotate(45deg); }
.card h3 { margin: 0 0 .65rem; font-size: 1.65rem; }
.card p { max-width: 310px; margin: 0 0 1.55rem; color: var(--muted); }
.card a { margin-top: auto; text-decoration: none; font-weight: 700; font-size: .88rem; }

.principles { background: linear-gradient(140deg,#15181d,#090a0c 60%); border-block: 1px solid var(--line); }
.principles-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 7rem; }
.principles-copy { position: sticky; top: 120px; align-self: start; }
.principles-copy > p:last-child { color: var(--muted); font-size: 1.1rem; }
.principle-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.principle-list li { position: relative; display: grid; grid-template-columns: 42px 1fr; gap: 1.25rem; align-items: start; padding: 1.7rem 0; border-bottom: 1px solid var(--line); }
.principle-list li::before { content: ""; width: 30px; height: 30px; margin-top: .15rem; border: 1px solid rgba(255,255,255,.34); background: linear-gradient(135deg,transparent 42%,rgba(255,255,255,.78) 43% 49%,transparent 50%), radial-gradient(circle,rgba(255,255,255,.9) 0 2px,transparent 3px); transform: rotate(45deg); box-shadow: 0 0 0 6px rgba(255,255,255,.025); }
.principle-list li:nth-child(even)::before { border-radius: 50%; transform: none; }
.principle-list h3 { margin: 0 0 .35rem; font-size: 1.35rem; letter-spacing: -.015em; }
.principle-list p { margin: 0; color: var(--muted); }

.gear-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.gear-card { position: relative; min-height: 260px; display: flex; flex-direction: column; justify-content: end; overflow: hidden; padding: 1.7rem; background: radial-gradient(circle at 70% 20%,#30353d,#15171b 50%,#0d0f12); border: 1px solid var(--line); text-decoration: none; transition: border-color .2s, transform .2s; }
.gear-card::before { content: "X"; position: absolute; right: 1rem; top: -.8rem; color: rgba(255,255,255,.07); font-size: 10rem; font-weight: 900; transform: skew(-10deg); }
.gear-card:hover, .gear-card:focus-visible { border-color: rgba(255,255,255,.45); transform: translateY(-4px); }
.gear-card span { color: var(--muted); text-transform: uppercase; letter-spacing: .16em; font-size: .68rem; }
.gear-card strong { font-size: 1.45rem; }
.gear-card small { color: var(--muted); }
.affiliate-note { margin: 1.5rem 0 0; color: #aeb2b9; font-size: .84rem; }

.preworkout { background: linear-gradient(145deg,#171a1f 0%,#0b0d10 58%,#11141a 100%); border-block: 1px solid var(--line); }
.preworkout-inner { padding-block: 110px; }
.preworkout-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.preworkout-card { position: relative; min-height: 330px; display: flex; flex-direction: column; padding: 2rem; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.012)); text-decoration: none; transition: border-color .2s, transform .2s, background .2s; }
.preworkout-card::before { content: ""; position: absolute; width: 180px; height: 180px; right: -70px; top: -70px; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; box-shadow: 0 0 0 22px rgba(255,255,255,.02),0 0 0 44px rgba(255,255,255,.015); }
.preworkout-card:hover, .preworkout-card:focus-visible { transform: translateY(-4px); border-color: rgba(255,255,255,.48); background: linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.018)); }
.preworkout-card .intensity { position: relative; color: var(--muted); font-size: .7rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.preworkout-card strong { position: relative; margin-top: auto; font-family: var(--display); font-size: clamp(2rem,3vw,3.2rem); line-height: 1; letter-spacing: -.04em; }
.preworkout-card small { position: relative; max-width: 310px; margin-top: .8rem; color: var(--muted); font-size: .88rem; }
.preworkout-card b { position: relative; margin-top: 1.5rem; font-size: .84rem; }
.preworkout-card.high-stim { box-shadow: inset 0 3px 0 #f1f3f5; }
.preworkout-card.low-stim { box-shadow: inset 0 3px 0 #9ca3ad; }
.preworkout-card.non-stim { box-shadow: inset 0 3px 0 #555c66; }
.preworkout-guidance { display: grid; grid-template-columns: .45fr 1.55fr; gap: 2rem; margin-top: 1.5rem; padding: 1.5rem 0; border-block: 1px solid var(--line); }
.preworkout-guidance p { margin: 0; color: var(--muted); font-size: .9rem; }

.connect { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 100px 0; display: grid; grid-template-columns: 1fr 1.15fr; gap: 7rem; border-block: 1px solid var(--line); }
.connect > div > p:last-child { color: var(--muted); }
.social-links { border-top: 1px solid var(--line); }
.social-links a { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.social-links span { color: var(--muted); font-size: .82rem; }
.social-links strong { font-size: .92rem; }

.legal { display: grid; grid-template-columns: .7fr 1.3fr; gap: 5rem; border-bottom: 1px solid var(--line); }
.legal-copy { color: var(--muted); }
.legal-copy p:first-child { color: var(--white); font-weight: 700; }
footer { width: min(var(--max), calc(100% - 48px)); min-height: 160px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 2rem; color: var(--muted); font-size: .8rem; }
footer > div { display: flex; gap: 1.2rem; }

@media (max-width: 900px) {
  .hero { min-height: 660px; }
  .hero-copy { transform: none; margin-left: 24px; }
  .intro, .principles-inner, .connect, .legal { grid-template-columns: 1fr; gap: 2.5rem; }
  .research-grid, .archive-grid, .card-grid, .gear-grid, .preworkout-grid { grid-template-columns: 1fr; }
  .preworkout-guidance { grid-template-columns: 1fr; gap: .5rem; }
  .principles-copy { position: static; }
  .section-heading { display: block; }
}

@media (max-width: 680px) {
  .site-header { min-height: 64px; }
  .menu-button { display: block; }
  nav { position: absolute; left: 16px; right: 16px; top: 70px; display: none; flex-direction: column; align-items: stretch; padding: 1rem; background: #121419; border: 1px solid var(--line); }
  nav.open { display: flex; }
  nav a { padding: .65rem; }
  h1 { font-size: clamp(3rem,16vw,4.8rem); }
  .section { width: min(var(--max), calc(100% - 32px)); padding: 78px 0; }
  .connect { width: calc(100% - 32px); padding: 78px 0; }
  footer { width: calc(100% - 32px); padding: 2rem 0; flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}