/* ══════════════════════════════════════════════════════════════════════════
   APEX — getapexfitness.com
   Cinematic single-story site. No frameworks, no external fonts.
   Brand (from src/ui/tokens.js): lime #A8E80C · cyan #2DD4FF · purple #A855F7
   Canvas deepened to #07090C for the launch-film look.
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  --bg: #07090C;
  --bg-raise: #0E1116;
  --ink: #EEF1F6;
  --muted: #A1A7B3;
  --faint: #6E7683;
  --line: #1C2129;
  --lime: #A8E80C;
  --cyan: #2DD4FF;
  --purple: #A855F7;
  --gold: #F3C63F;
  --font: "SF Pro Text", "SF Pro Display", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Inter",
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
strong { color: var(--ink); }

.container { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.container--narrow { width: min(760px, calc(100% - 48px)); }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--lime); color: #000; padding: 10px 18px; border-radius: 0 0 10px 0;
  font-weight: 800; font-size: 14px;
}
.skip-link:focus { left: 0; }

/* ── Reveal-on-scroll ─────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

/* ── Pulse progress line ──────────────────────────────────────────────── */
.pulse {
  position: fixed; top: 0; left: 0; width: 2px; height: 100vh; z-index: 90;
  background: rgba(168, 232, 12, 0.08); pointer-events: none;
}
.pulse span {
  display: block; width: 100%; height: 0%;
  background: linear-gradient(180deg, var(--lime), rgba(168, 232, 12, 0.25));
  box-shadow: 0 0 12px rgba(168, 232, 12, 0.55);
}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 800; font-size: 15px;
  padding: 14px 26px; border-radius: 999px; border: 1.5px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s;
  will-change: transform;
}
.btn--primary { background: var(--lime); color: #000; box-shadow: 0 8px 32px rgba(168, 232, 12, 0.28); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 44px rgba(168, 232, 12, 0.4); }
.btn--ghost { border-color: var(--line); color: var(--ink); }
.btn--ghost:hover { border-color: var(--lime); color: var(--lime); }
.btn .arrow { transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ── Nav ──────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.35s, border-color 0.35s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(7, 9, 12, 0.78);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav__brand { display: inline-flex; align-items: center; gap: 10px; }
.nav__brand-mark { height: 30px; width: auto; }
.nav__brand-word { height: 15px; width: auto; }
.nav__links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav__links a { font-size: 14px; font-weight: 600; color: var(--muted); transition: color 0.2s; }
.nav__links a:hover { color: var(--ink); }
.nav__links .btn { color: #000; padding: 9px 20px; font-size: 13.5px; }
.nav__links .btn:hover { color: #000; }
.nav__toggle { display: none; background: none; border: none; color: var(--ink); width: 44px; height: 44px; cursor: pointer; }
.nav__toggle svg { width: 24px; height: 24px; }
.nav__toggle .icon-close { display: none; }
.lang { display: flex; gap: 2px; border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.lang a { font-size: 12px; font-weight: 800; padding: 4px 10px; border-radius: 999px; color: var(--faint); }
.lang a[aria-current] { background: var(--lime); color: #000; }

@media (max-width: 880px) {
  .nav__toggle { display: grid; place-items: center; }
  .nav__links {
    position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: flex-start;
    gap: 4px; padding: 18px 24px 26px; background: rgba(7, 9, 12, 0.97);
    border-bottom: 1px solid var(--line); display: none;
  }
  .nav__links li { width: 100%; }
  .nav__links a { display: block; padding: 12px 0; font-size: 16px; }
  .nav__links .btn { display: inline-flex; padding: 12px 24px; }
  .nav.menu-open .nav__links { display: flex; }
  .nav.menu-open .icon-menu { display: none; }
  .nav.menu-open .icon-close { display: block; }
  .lang { align-self: flex-start; margin-top: 8px; }
}

/* ── Hero ─────────────────────────────────────────────────────────────── */
.hero {
  position: relative; min-height: 100svh; overflow: hidden;
  display: flex; flex-direction: column; align-items: center;
  padding: clamp(110px, 16vh, 170px) 24px 56px; text-align: center;
}
.hero__spot { position: absolute; inset: 0; pointer-events: none; }
.hero__spot::before {
  content: ""; position: absolute; left: 50%; top: 34%; width: 900px; height: 900px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(168, 232, 12, 0.09) 0%, transparent 58%);
}
.hero__spot::after {
  content: ""; position: absolute; left: 24%; top: 72%; width: 640px; height: 640px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(168, 85, 247, 0.07) 0%, transparent 60%);
}
.hero__mega {
  position: relative; z-index: 1; font-family: var(--font-display);
  font-weight: 900; line-height: 0.9; letter-spacing: -0.025em;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.hero__mega-line { font-size: clamp(58px, 11.5vw, 168px); color: var(--ink); display: block; }
.hero__mega-line--grad {
  background: linear-gradient(92deg, var(--lime) 20%, #D7FF66 50%, var(--lime) 80%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 28px rgba(168, 232, 12, 0.22));
}

.hero__stage {
  position: relative; z-index: 2; display: flex; justify-content: center; align-items: flex-end;
  margin-top: calc(clamp(58px, 11.5vw, 168px) * -0.06);
}
.hero__foot { position: relative; z-index: 3; margin-top: 40px; max-width: 620px; }
.hero__sub { font-size: clamp(16px, 2vw, 19px); color: var(--muted); line-height: 1.6; }
.hero__actions { display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; margin-top: 26px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700;
  color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 9px 16px;
}
.hero__badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 10px var(--lime); }
.hero__proof { margin-top: 18px; font-size: 12px; color: var(--faint); font-style: italic; }
.hero__scroll {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 3;
  width: 26px; height: 42px; border: 1.5px solid var(--line); border-radius: 999px;
  display: flex; justify-content: center; padding-top: 8px;
}
.hero__scroll span { width: 3px; height: 8px; border-radius: 2px; background: var(--lime); animation: scrollcue 2s var(--ease) infinite; }
@keyframes scrollcue { 0%, 100% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(14px); opacity: 0; } }

/* ── Device (phone) ───────────────────────────────────────────────────── */
.device { position: relative; width: clamp(250px, 24vw, 336px); filter: drop-shadow(0 44px 90px rgba(0, 0, 0, 0.65)); }
.device--hero { transform: rotate(-3deg); }
.device--mini { width: clamp(240px, 22vw, 310px); }
.device__frame {
  position: relative; border-radius: clamp(46px, 4.6vw, 60px); padding: clamp(10px, 1vw, 13px);
  background:
    linear-gradient(145deg, #4B515A 0%, #23262C 16%, #101216 42%, #26292F 74%, #5A6069 100%);
  box-shadow:
    inset 0 0 0 1.5px rgba(255, 255, 255, 0.16),
    inset 0 0 18px rgba(0, 0, 0, 0.85);
}
.device__screen {
  position: relative; border-radius: clamp(36px, 3.7vw, 48px); overflow: hidden;
  background: #000; border: 3px solid #000;
}
.device__screen img { width: 100%; height: auto; }
.device__island {
  position: absolute; top: clamp(15px, 1.5vw, 20px); left: 50%; transform: translateX(-50%);
  width: 21%; height: clamp(14px, 1.5vw, 18px); border-radius: 999px; background: #000; z-index: 3;
  box-shadow: inset -5px 0 7px -5px rgba(90, 96, 105, 0.7);
}
.device__btn { position: absolute; width: 3.5px; background: linear-gradient(90deg, #464C55, #16181C); }
.device__btn--action { left: -3.5px; top: 17%; height: 26px; border-radius: 3px 0 0 3px; }
.device__btn--vol1 { left: -3.5px; top: 25%; height: 48px; border-radius: 3px 0 0 3px; }
.device__btn--vol2 { left: -3.5px; top: 33.5%; height: 48px; border-radius: 3px 0 0 3px; }
.device__btn--power { right: -3.5px; top: 27%; height: 74px; border-radius: 0 3px 3px 0; background: linear-gradient(270deg, #464C55, #16181C); }
.device__glare {
  position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: 4;
  background: linear-gradient(112deg, rgba(255, 255, 255, 0.085) 0%, rgba(255, 255, 255, 0.015) 24%, transparent 38%);
}
.device--purple { filter: drop-shadow(0 40px 80px rgba(168, 85, 247, 0.16)); }

/* ── Watch ────────────────────────────────────────────────────────────── */
.watch {
  position: absolute; left: clamp(-140px, -11vw, -84px); bottom: 6%;
  width: clamp(148px, 14vw, 186px); transform: rotate(7deg); z-index: 3;
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.7));
}
.watch__band {
  width: 54%; height: clamp(40px, 4vw, 56px); margin-inline: auto;
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0 2px, transparent 2px 11px),
    linear-gradient(180deg, #1B1E24, #0C0E11);
  border-inline: 1px solid rgba(255, 255, 255, 0.06);
}
.watch__band--top { border-radius: 14px 14px 5px 5px; }
.watch__band--bottom { border-radius: 5px 5px 14px 14px; }
.watch__case {
  position: relative; border-radius: clamp(32px, 3.4vw, 42px); padding: 7px;
  background: linear-gradient(145deg, #4B515A 0%, #1B1E23 30%, #101216 60%, #555B64 100%);
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.14), inset 0 0 12px rgba(0, 0, 0, 0.85);
}
.watch__crown { position: absolute; right: -5px; top: 24%; width: 5.5px; height: 22px; border-radius: 0 4px 4px 0; background: linear-gradient(180deg, #4A5058, #14161A); }
.watch__side { position: absolute; right: -4px; top: 52%; width: 4px; height: 30px; border-radius: 0 3px 3px 0; background: linear-gradient(180deg, #33383F, #101216); }
.watch__face {
  border-radius: clamp(26px, 2.8vw, 35px); background: #000; border: 2.5px solid #000;
  padding: clamp(12px, 1.4vw, 18px) 10px clamp(10px, 1.2vw, 14px);
  display: flex; flex-direction: column; align-items: center; gap: 7px;
}
.watch__logo { height: 13px; width: auto; opacity: 0.95; }
.watch__ring { position: relative; width: clamp(64px, 6.6vw, 84px); height: clamp(64px, 6.6vw, 84px); display: grid; place-items: center; }
.watch__ring::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(var(--lime) 0 313deg, #1E2530 313deg 360deg);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 8px), #000 calc(100% - 7px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 8px), #000 calc(100% - 7px));
  filter: drop-shadow(0 0 8px rgba(168, 232, 12, 0.5));
}
.watch__ring b { font-family: var(--font-display); font-size: clamp(22px, 2.4vw, 30px); font-weight: 900; color: var(--ink); }
.watch__ring-label { font-size: 8.5px; font-weight: 800; letter-spacing: 2.4px; text-transform: uppercase; color: var(--lime); }
.watch__rows { display: flex; gap: 10px; font-size: 9px; color: var(--muted); font-weight: 600; }
.watch__rows b { color: var(--ink); font-weight: 800; }
.watch__rows i { font-style: normal; font-size: 7.5px; color: var(--faint); }

/* ── Prelude ──────────────────────────────────────────────────────────── */
.prelude { padding: clamp(110px, 18vh, 200px) 0; text-align: center; }
.prelude__line { font-size: clamp(19px, 2.6vw, 26px); color: var(--muted); max-width: 30ch; margin: 0 auto 34px; line-height: 1.55; }
.prelude__line--big { font-family: var(--font-display); font-size: clamp(30px, 4.6vw, 52px); font-weight: 800; letter-spacing: -0.015em; color: var(--ink); line-height: 1.2; margin-bottom: 0; max-width: 22ch; }
.prelude__line--big strong { color: var(--lime); }

/* ── Chapters ─────────────────────────────────────────────────────────── */
.chapter { position: relative; padding: clamp(110px, 15vh, 180px) 0; overflow: hidden; }
.chapter::before {
  content: attr(data-n); position: absolute; z-index: 0; top: 4%; right: -1%;
  font-family: var(--font-display); font-weight: 900; line-height: 1;
  font-size: clamp(150px, 27vw, 360px); color: transparent;
  -webkit-text-stroke: 1.5px rgba(168, 232, 12, 0.1);
  pointer-events: none; -webkit-user-select: none; user-select: none;
}
.chapter--flip::before { right: auto; left: -1%; }
.chapter--cyan::before { -webkit-text-stroke-color: rgba(45, 212, 255, 0.1); }
.chapter--purple::before { -webkit-text-stroke-color: rgba(168, 85, 247, 0.12); }
.chapter__bg { position: absolute; inset: 0; z-index: 0; opacity: 0.13; }
.chapter__bg img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.35) contrast(1.05);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 20%, #000 80%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 20%, #000 80%, transparent);
}
.chapter__grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.chapter--flip .chapter__grid > .chapter__copy { order: 2; }
.chapter--flip .chapter__grid > .chapter__stage { order: 1; }
.chapter__kicker {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 3.5px;
  text-transform: uppercase; color: var(--lime); margin-bottom: 20px;
}
.chapter--cyan .chapter__kicker { color: var(--cyan); }
.chapter--purple .chapter__kicker { color: var(--purple); }
.chapter__title { font-family: var(--font-display); font-size: clamp(42px, 6.6vw, 92px); font-weight: 900; letter-spacing: -0.02em; line-height: 0.98; margin-bottom: 24px; }
.chapter__lead { font-size: clamp(16px, 1.9vw, 19px); color: var(--muted); max-width: 46ch; }
.chapter__stage { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.proof { font-size: 12px; color: var(--faint); font-style: italic; text-align: center; }

/* Macro rings (chapter 03) */
.macro { display: flex; gap: clamp(14px, 2vw, 26px); align-items: flex-end; padding-bottom: 30px; }
.macro__ring { position: relative; display: grid; place-items: center; text-align: center; }
.macro__ring::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 11px), #000 calc(100% - 10px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 11px), #000 calc(100% - 10px));
}
.macro__ring b { font-family: var(--font-display); font-size: clamp(20px, 2.4vw, 28px); font-weight: 900; }
.macro__ring b i { font-style: normal; font-size: 0.55em; color: var(--muted); }
.macro__ring span { position: absolute; bottom: -26px; font-size: 11px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; color: var(--faint); }
.macro__ring--p { width: clamp(140px, 13vw, 170px); height: clamp(140px, 13vw, 170px); }
.macro__ring--p::before { background: conic-gradient(var(--lime) 0 284deg, #1E2530 284deg 360deg); filter: drop-shadow(0 0 14px rgba(168, 232, 12, 0.35)); }
.macro__ring--c { width: clamp(118px, 11vw, 146px); height: clamp(118px, 11vw, 146px); }
.macro__ring--c::before { background: conic-gradient(var(--cyan) 0 291deg, #1E2530 291deg 360deg); filter: drop-shadow(0 0 12px rgba(45, 212, 255, 0.3)); }
.macro__ring--f { width: clamp(100px, 9.6vw, 128px); height: clamp(100px, 9.6vw, 128px); }
.macro__ring--f::before { background: conic-gradient(var(--gold) 0 275deg, #1E2530 275deg 360deg); filter: drop-shadow(0 0 12px rgba(243, 198, 63, 0.28)); }

/* Anatomy figure (chapter 04) */
.anatomy svg { width: clamp(230px, 24vw, 310px); height: auto; filter: drop-shadow(0 24px 60px rgba(0, 0, 0, 0.6)); }

/* Threads (chapter 05) */
.threads { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin-top: 28px; }
.threads li {
  font-size: 12.5px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase;
  color: var(--purple); border: 1px solid rgba(168, 85, 247, 0.35); border-radius: 999px;
  padding: 8px 16px;
}
.threads li::after { content: "→"; margin-left: 10px; color: rgba(168, 85, 247, 0.5); }
.threads li:last-child::after { content: "⤳"; color: var(--purple); }

/* ── The standard ─────────────────────────────────────────────────────── */
.standard { padding: clamp(120px, 18vh, 210px) 0; text-align: center; border-top: 1px solid var(--line); }
.standard__title { font-family: var(--font-display); font-size: clamp(36px, 5.6vw, 72px); font-weight: 900; letter-spacing: -0.02em; line-height: 1.05; margin: 18px 0 42px; }
.standard__lines { max-width: 620px; margin-inline: auto; display: grid; gap: 22px; }
.standard__lines p { color: var(--muted); font-size: clamp(15.5px, 1.8vw, 18px); }

/* ── Finale ───────────────────────────────────────────────────────────── */
.finale {
  position: relative; padding: clamp(130px, 20vh, 230px) 0; text-align: center; overflow: hidden;
  background: radial-gradient(ellipse 70% 55% at 50% 105%, rgba(168, 232, 12, 0.1), transparent 70%);
}
.tagline { display: block; font-size: 13px; font-weight: 800; letter-spacing: 5px; text-transform: uppercase; color: var(--lime); margin-bottom: 18px; }
.finale__title { font-family: var(--font-display); font-size: clamp(44px, 7.4vw, 104px); font-weight: 900; letter-spacing: -0.02em; line-height: 0.98; }
.finale__lead { color: var(--muted); font-size: clamp(16px, 2vw, 19px); max-width: 52ch; margin: 24px auto 0; }
.finale .hero__actions { margin-top: 36px; }

/* ── FAQ ──────────────────────────────────────────────────────────────── */
.section { padding: clamp(90px, 12vh, 150px) 0; }
.faq__title { font-family: var(--font-display); font-size: clamp(28px, 3.6vw, 44px); font-weight: 900; letter-spacing: -0.015em; margin-bottom: 34px; text-align: center; }
.faq { display: grid; gap: 10px; }
.faq details { border: 1px solid var(--line); border-radius: 16px; background: var(--bg-raise); overflow: hidden; transition: border-color 0.25s; }
.faq details[open] { border-color: rgba(168, 232, 12, 0.4); }
.faq summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  padding: 18px 22px; font-weight: 700; font-size: 15.5px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; font-weight: 400; color: var(--lime); transition: transform 0.25s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 22px 20px; color: var(--muted); font-size: 14.5px; }
.faq a { color: var(--lime); }

/* ── Footer ───────────────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line); padding: 44px 0; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer__brand { display: flex; flex-direction: column; gap: 10px; font-size: 13px; color: var(--faint); }
.footer__brand-lockup { display: inline-flex; align-items: center; gap: 10px; }
.footer__brand-mark { height: 26px; width: auto; }
.footer__brand-word { height: 13px; width: auto; }
.footer nav { display: flex; gap: 26px; font-size: 13.5px; }
.footer nav a { color: var(--muted); }
.footer nav a:hover { color: var(--ink); }

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 920px) {
  .chapter__grid { grid-template-columns: 1fr; gap: 48px; }
  .chapter--flip .chapter__grid > .chapter__copy { order: 1; }
  .chapter--flip .chapter__grid > .chapter__stage { order: 2; }
  .chapter__copy { text-align: center; }
  .chapter__lead { margin-inline: auto; }
  .chapter__kicker { margin-inline: auto; }
  .threads { justify-content: center; }
}
@media (max-width: 640px) {
  .watch { left: auto; right: -26px; bottom: -18px; width: 132px; }
  .hero__stage { margin-top: calc(clamp(58px, 11.5vw, 168px) * -0.1); }
  .macro { flex-wrap: wrap; justify-content: center; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* ── Parallax (JS sets --py; rotations preserved per element) ─────────── */
[data-parallax] { transform: translateY(var(--py, 0px)); will-change: transform; }
.device--hero[data-parallax] { transform: rotate(-3deg) translateY(var(--py, 0px)); }
.watch[data-parallax] { transform: rotate(7deg) translateY(var(--py, 0px)); }
.reveal.in[data-parallax] { transform: translateY(var(--py, 0px)); transition: opacity 0.9s var(--ease); }
.device--hero.reveal.in[data-parallax] { transform: rotate(-3deg) translateY(var(--py, 0px)); }
.watch.reveal.in[data-parallax] { transform: rotate(7deg) translateY(var(--py, 0px)); }

/* ══ KEYNOTE — the product reveal ═════════════════════════════════════── */
.keynote { position: relative; height: 640vh; }
.keynote__pin {
  position: sticky; top: 0; height: 100svh; overflow: hidden;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  perspective: 1500px;
}

/* volumetric light + particles */
.kn-bg { position: absolute; inset: 0; pointer-events: none; }
.kn-beam {
  position: absolute; left: 50%; top: -30%; width: 74vw; height: 150%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse 34% 46% at 50% 32%, rgba(168, 232, 12, 0.1), transparent 70%);
}
.kn-halo {
  position: absolute; left: 22%; bottom: -32%; width: 60vw; height: 90%;
  background: radial-gradient(ellipse 40% 40% at 50% 60%, rgba(168, 85, 247, 0.08), transparent 70%);
}
.kn-part { position: absolute; width: 3px; height: 3px; border-radius: 50%; background: rgba(168, 232, 12, 0.55); filter: blur(0.4px); animation: kndrift 16s linear infinite; opacity: 0; }
.kn-part--1 { left: 16%; top: 78%; animation-delay: 0s; }
.kn-part--2 { left: 30%; top: 88%; animation-delay: 3s; }
.kn-part--3 { left: 52%; top: 84%; animation-delay: 6s; width: 2px; height: 2px; }
.kn-part--4 { left: 68%; top: 90%; animation-delay: 9s; }
.kn-part--5 { left: 82%; top: 80%; animation-delay: 12s; width: 2px; height: 2px; }
.kn-part--6 { left: 42%; top: 92%; animation-delay: 14s; }
@keyframes kndrift {
  0% { transform: translateY(0); opacity: 0; }
  12% { opacity: 0.8; }
  85% { opacity: 0.25; }
  100% { transform: translateY(-58vh); opacity: 0; }
}

/* stage-0 title */
.kn-head { position: absolute; top: clamp(84px, 12vh, 150px); text-align: center; z-index: 4; transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.kn-title { font-family: var(--font-display); font-weight: 900; line-height: 0.94; letter-spacing: -0.02em; display: flex; flex-direction: column; }
.kn-title span { font-size: clamp(34px, 6.4vw, 92px); }
.kn-title-grad {
  background: linear-gradient(92deg, var(--lime) 15%, #D7FF66 50%, var(--lime) 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 24px rgba(168, 232, 12, 0.22));
}
.kn-sub { margin-top: 14px; font-size: clamp(13px, 1.6vw, 16px); font-weight: 800; letter-spacing: 4px; text-transform: uppercase; color: var(--muted); }
.keynote__pin:not([data-stage="0"]) .kn-head { opacity: 0; transform: translateY(-22px) scale(0.96); pointer-events: none; }

/* scene + phone */
.kn-scene { position: relative; width: min(1150px, 96vw); height: min(74vh, 740px); transform-style: preserve-3d; }
.kn-orbit { position: absolute; inset: 0; display: grid; place-items: center; transform-style: preserve-3d; transition: transform 0.9s var(--ease), opacity 0.9s var(--ease); }
/* stage 0: the title is the star — the device waits low and dim, then rises */
.keynote__pin[data-stage="0"] .kn-orbit { transform: translateY(9vh) scale(0.93); opacity: 0.62; }
/* photographed hardware: real product render, real UI composited in the glass */
.kn-phone { position: relative; width: clamp(320px, 34vw, 470px); transform-style: preserve-3d; animation: knspin 13s var(--ease) infinite alternate; }
@keyframes knspin {
  from { transform: rotateY(-5deg) rotateX(1.2deg); }
  to { transform: rotateY(5deg) rotateX(-1.2deg); }
}
.kn-photo {
  width: 100%; height: auto; display: block;
  -webkit-mask-image: radial-gradient(ellipse 74% 88% at 50% 48%, #000 58%, transparent 99%);
  mask-image: radial-gradient(ellipse 74% 88% at 50% 48%, #000 58%, transparent 99%);
}
.kn-photo-screen {
  position: absolute; left: 24.8%; top: 7.4%; width: 50.5%; height: 79.5%;
  overflow: hidden; border-radius: 11% / 5.3%; background: #07090C;
}
.kn-photo-screen img { width: 100%; height: 100%; object-fit: fill; display: block; }
.kn-ring {
  position: absolute; left: 50%; top: 50%; width: clamp(340px, 40vw, 560px); height: clamp(340px, 40vw, 560px);
  transform: translate(-50%, -50%); border-radius: 50%;
  border: 1px solid rgba(168, 232, 12, 0.22);
  box-shadow: 0 0 60px rgba(168, 232, 12, 0.08), inset 0 0 60px rgba(168, 232, 12, 0.05);
  opacity: 0; transition: opacity 0.8s var(--ease); pointer-events: none;
}
.keynote__pin[data-stage="7"] .kn-ring { opacity: 1; }

/* module panels exploding out of the phone */
/* One module at a time. Each chapter's panel plays in on its own —
   scroll advances chapters; it never scrubs the motion. */
.kn-panel {
  position: absolute; left: 50%; top: 50%; z-index: 3; opacity: 0; pointer-events: none;
  --T: translate(-50%, -50%) translate3d(min(26vw, 360px), -5vh, 40px);
  transform: var(--T);
  min-width: 250px; padding: 22px 28px; border-radius: 18px;
  background: linear-gradient(150deg, rgba(30, 37, 48, 0.85), rgba(13, 16, 21, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}
@keyframes knenter {
  from { opacity: 0; transform: var(--T) translateY(34px) scale(0.96); }
  to { opacity: 1; transform: var(--T); }
}
.keynote__pin[data-stage="1"] .kn-panel--train,
.keynote__pin[data-stage="2"] .kn-panel--recovery,
.keynote__pin[data-stage="3"] .kn-panel--bloodwork,
.keynote__pin[data-stage="4"] .kn-panel--nutrition,
.keynote__pin[data-stage="5"] .kn-panel--coach {
  animation: knenter 0.9s var(--ease) 0.2s forwards;
}
.kn-panel h3 { font-size: 12px; font-weight: 800; letter-spacing: 3px; text-transform: uppercase; color: var(--lime); margin-bottom: 7px; }
.kn-panel p { font-size: 17px; font-weight: 700; color: var(--ink); white-space: nowrap; }
.kn-panel p b { font-size: 21px; }
.kn-panel--recovery h3 { color: var(--cyan); }
.kn-panel--coach h3 { color: var(--purple); }
.kn-panel--coach { min-width: 270px; }
.kn-panel--coach p { white-space: normal; max-width: 300px; }
.kn-type { min-height: 1.3em; }
.kn-type::after { content: "▍"; color: var(--purple); animation: knblink 1s steps(1) infinite; }
@keyframes knblink { 50% { opacity: 0; } }

/* chapter accents */
.keynote__pin[data-stage="2"] .kn-panel--recovery { border-color: rgba(45, 212, 255, 0.5); box-shadow: 0 30px 80px rgba(45, 212, 255, 0.16); }
.keynote__pin[data-stage="3"] .kn-panel--bloodwork { border-color: rgba(168, 232, 12, 0.5); box-shadow: 0 30px 80px rgba(168, 232, 12, 0.15); }
.keynote__pin[data-stage="5"] .kn-panel--coach { border-color: rgba(168, 85, 247, 0.55); box-shadow: 0 30px 80px rgba(168, 85, 247, 0.18); }

/* flagship industrial design: machined edge ring + deep glass shadow + light pool */
.kn-phone .device__frame {
  box-shadow:
    inset 0 0 0 1.5px rgba(255, 255, 255, 0.14),
    inset 0 0 0 3.5px rgba(125, 135, 150, 0.22),
    inset 0 0 26px rgba(0, 0, 0, 0.55),
    0 46px 110px rgba(0, 0, 0, 0.65),
    0 12px 34px rgba(0, 0, 0, 0.5);
}
.kn-floor {
  position: absolute; left: 50%; bottom: 3%; z-index: 0;
  width: min(580px, 62vw); height: 120px; transform: translateX(-50%);
  background: radial-gradient(ellipse 50% 44% at 50% 32%, rgba(168, 232, 12, 0.1), transparent 70%);
  filter: blur(7px); pointer-events: none;
}

/* editorial numbered captions */
.kn-caption::before {
  content: attr(data-n);
  color: var(--lime); font-size: 0.68em; font-weight: 900;
  letter-spacing: 3px; margin-right: 12px; vertical-align: 2px;
}
.kn-kicker {
  display: block; font-size: 12px; font-weight: 800; letter-spacing: 6px;
  text-transform: uppercase; color: var(--lime); margin-bottom: 16px;
}

/* the watch joins in */
.kn-watchwrap {
  position: absolute; right: 6%; bottom: 8%; z-index: 4; text-align: center;
  opacity: 0; transform: translateY(46px) scale(0.9);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.keynote__pin[data-stage="6"] .kn-watchwrap { opacity: 1; transform: translateY(0) scale(1); }
.kn-watchwrap .watch { position: static; transform: rotate(-5deg); width: clamp(140px, 13vw, 176px); }
.kn-watchring { position: relative; display: grid; place-items: center; }
.kn-watchring svg { width: clamp(62px, 6.2vw, 80px); height: auto; filter: drop-shadow(0 0 8px rgba(168, 232, 12, 0.45)); }
.kn-watchring b { position: absolute; font-family: var(--font-display); font-size: clamp(20px, 2.2vw, 27px); font-weight: 900; color: var(--ink); }
.kn-watch-tag { display: inline-block; margin-top: 10px; font-size: 11px; font-weight: 800; letter-spacing: 1.6px; text-transform: uppercase; color: var(--lime); }

/* caption */
.kn-caption {
  position: absolute; bottom: clamp(58px, 9vh, 96px); z-index: 4;
  font-family: var(--font-display); font-size: clamp(17px, 2.2vw, 23px); font-weight: 800;
  letter-spacing: 0.3px; color: var(--ink); text-align: center;
}

/* after the reveal */
.kn-after { padding: clamp(110px, 16vh, 190px) 0; text-align: center; }

/* body section — photographed sculptural anatomy */
.anatomy-photo {
  width: clamp(300px, 30vw, 430px); height: auto; display: block; margin: 0 auto;
  -webkit-mask-image: radial-gradient(ellipse 72% 84% at 50% 50%, #000 55%, transparent 98%);
  mask-image: radial-gradient(ellipse 72% 84% at 50% 50%, #000 55%, transparent 98%);
}
.anatomy--xl svg { width: clamp(270px, 27vw, 360px); }
.anatomy--xl #aheatL path, .anatomy--xl .m-core { transition: fill-opacity 0.4s var(--ease); }
.anatomy--xl.has-sel #aheatL path, .anatomy--xl.has-sel .m-core { fill-opacity: 0.07; }
.anatomy--xl.sel-chest .m-chest, .anatomy--xl.sel-delts .m-delts, .anatomy--xl.sel-quads .m-quads,
.anatomy--xl.sel-calves .m-calves, .anatomy--xl.sel-core .m-core { fill-opacity: 0.85; }
.bodysec__chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.chip-btn {
  font-family: var(--font); font-size: 12.5px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase;
  color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 999px;
  padding: 9px 18px; cursor: pointer; transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.chip-btn:hover { color: var(--ink); border-color: var(--lime); }
.chip-btn[aria-pressed="true"] { background: var(--lime); color: #000; border-color: var(--lime); }

@media (max-width: 760px) {
  .keynote { height: 560vh; }
  .kn-panel { min-width: 200px; padding: 16px 20px; --T: translate(-50%, -50%) translate3d(0, 30vh, 30px); }
  .kn-panel p { font-size: 14.5px; }
  .kn-panel--coach { min-width: 230px; }
  .kn-watchwrap { right: 4%; bottom: 5%; }
  .kn-scene { height: 70vh; }
  .bodysec__chips { justify-content: center; }
}

/* ══ CINEMA — the camera tells the story ═══════════════════════════════ */
.kn-orbit { transition: transform 1.6s var(--ease), opacity 1.2s var(--ease); }
.keynote__pin[data-stage="1"] .kn-orbit { transform: scale(1.07) translateX(-5%); }
.keynote__pin[data-stage="2"] .kn-orbit { transform: scale(1.13) translateX(5%); }
.keynote__pin[data-stage="3"] .kn-orbit { transform: scale(1.03) translateX(-4%) translateY(-2vh); }
.keynote__pin[data-stage="4"] .kn-orbit { transform: scale(1.17) translateY(3vh); }
.keynote__pin[data-stage="5"] .kn-orbit { transform: scale(0.99) translateX(4%); }
.keynote__pin[data-stage="6"] .kn-orbit { transform: scale(0.9) translateX(-9%); }
.keynote__pin[data-stage="7"] .kn-orbit { transform: scale(0.85); }
.keynote__pin[data-stage="8"] .kn-orbit { transform: scale(0.8) translateY(-3vh); }

/* the screen wakes when the story begins */
.kn-photo-screen img { filter: brightness(0.98); transition: filter 1.4s var(--ease) 0.3s; }
.keynote__pin[data-stage="0"] .kn-photo-screen img { filter: brightness(0.22); }

/* light lives on the glass */
.kn-photo-screen::after {
  content: ""; position: absolute; inset: -30%;
  background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, 0.075) 50%, transparent 58%);
  transform: translateX(-85%); animation: knsweep 8s var(--ease) infinite;
  pointer-events: none;
}
@keyframes knsweep {
  0%, 55% { transform: translateX(-85%); }
  80%, 100% { transform: translateX(85%); }
}

/* a real notification arrives during the Train scene */
.kn-screen-notif {
  position: absolute; top: 3.5%; left: 5%; right: 5%; z-index: 2;
  padding: 9px 12px; border-radius: 11px;
  background: rgba(18, 24, 31, 0.94); border: 1px solid rgba(168, 232, 12, 0.35);
  color: var(--ink); font-size: 11.5px; font-weight: 700; text-align: left;
  opacity: 0; transform: translateY(-18px);
}
.keynote__pin[data-stage="1"] .kn-screen-notif { animation: knnotif 0.7s var(--ease) 1.1s forwards; }
@keyframes knnotif { to { opacity: 1; transform: none; } }

/* captions land as a second beat, after the visual */
.kn-caption { opacity: 0; }
.kn-caption.is-in { animation: kncap 0.8s var(--ease) 0.55s forwards; }
@keyframes kncap { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* final scene: the invitation */
.kn-cta {
  position: absolute; bottom: clamp(118px, 17vh, 180px); z-index: 5;
  opacity: 0; pointer-events: none;
}
.keynote__pin[data-stage="8"] .kn-cta { animation: kncap 0.9s var(--ease) 0.9s forwards; pointer-events: auto; }
.keynote__pin[data-stage="8"] .kn-ring { opacity: 1; }

/* ══ BODY LAB — the signature scene: the phone drives the anatomy ═════── */
.bodylab { position: relative; width: clamp(300px, 34vw, 480px); margin: 0 auto 54px; }
.bodylab .anatomy-photo { width: 100%; }
.bodylab__spot {
  position: absolute; width: 14%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 232, 12, 0.6), transparent 70%);
  filter: blur(7px); opacity: 0; animation: blspot 12s var(--ease) infinite;
  pointer-events: none;
}
.bodylab__spot--chest { left: 20%; top: 21%; }
.bodylab__spot--quads { left: 19%; top: 52%; animation-delay: 4s; }
.bodylab__spot--back { left: 65%; top: 27%; animation-delay: 8s; }
@keyframes blspot { 0%, 6% { opacity: 0; } 12%, 27% { opacity: 1; } 33%, 100% { opacity: 0; } }
/* three beams, one per beat — the phone visibly targets the muscle it lights */
.bodylab__beam {
  position: absolute; height: 2px; transform-origin: right center;
  background: linear-gradient(90deg, transparent, rgba(168, 232, 12, 0.8));
  opacity: 0; animation: blbeam 12s var(--ease) infinite;
}
.bodylab__beam--chest { right: 30%; bottom: 34%; width: 36%; transform: rotate(-38deg); }
.bodylab__beam--quads { right: 30%; bottom: 30%; width: 26%; transform: rotate(-14deg); animation-delay: 4s; }
.bodylab__beam--back { right: 18%; bottom: 36%; width: 30%; transform: rotate(-58deg); animation-delay: 8s; }
@keyframes blbeam { 0%, 6% { opacity: 0; } 12%, 27% { opacity: 0.9; } 33%, 100% { opacity: 0; } }

/* in-screen sync: the same beat pings the muscle inside the phone's UI */
.bodylab__ping {
  position: absolute; width: 9%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 232, 12, 0.8), transparent 70%);
  opacity: 0; animation: blspot 12s var(--ease) infinite; pointer-events: none;
}
.bodylab__ping--chest { left: 43%; top: 31%; }
.bodylab__ping--quads { left: 42%; top: 52%; animation-delay: 4s; }
.bodylab__ping--back { left: 55%; top: 12.5%; width: 26%; aspect-ratio: 3.2; border-radius: 10px; background: rgba(168, 232, 12, 0.22); box-shadow: 0 0 0 1.5px rgba(168, 232, 12, 0.7); animation-delay: 8s; }
.bodylab__phone {
  position: absolute; right: -16%; bottom: -5%; width: 47%;
  animation: none !important; transform: rotate(-5deg);
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.65));
}
.bodylab__status {
  position: absolute; left: 0; bottom: -44px; width: 100%; height: 20px; text-align: center;
  font-size: 12.5px; font-weight: 800; letter-spacing: 1.6px; text-transform: uppercase; color: var(--lime);
}
.bodylab__status span { position: absolute; left: 0; width: 100%; opacity: 0; animation: blstat 12s var(--ease) infinite; }
.bodylab__status span:nth-child(2) { animation-delay: 4s; }
.bodylab__status span:nth-child(3) { animation-delay: 8s; }
@keyframes blstat { 0%, 5% { opacity: 0; transform: translateY(8px); } 10%, 27% { opacity: 1; transform: none; } 33%, 100% { opacity: 0; } }
@media (max-width: 760px) {
  .bodylab { width: min(86vw, 420px); }
  .bodylab__phone { right: -4%; width: 50%; }
}

/* ── Reduced motion ───────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__scroll span { animation: none; }
  .btn, .btn .arrow { transition: none; }
  .keynote { height: auto; }
  .keynote__pin { position: relative; height: auto; min-height: 100svh; padding: 140px 0 90px; }
  .kn-phone { animation: none; }
  .kn-part { animation: none; opacity: 0; }
  .kn-panel { --out: 1; }
  .kn-head { position: static; margin-bottom: 40px; }
  .keynote__pin:not([data-stage="0"]) .kn-head { opacity: 1; transform: none; }
  .kn-watchwrap { opacity: 1; transform: none; }
  .kn-type::after { animation: none; }
}