:root {
  --white: #ffffff;
  --ink: #050505;
  --cream: #fafafc;
  --grey: #6b7280;
  --body: #33333a;
  --line: #e3e6ec;
  --pink: #ff2daa;
  --violet: #7b4dff;
  --cyan: #00d4ff;
  --raspberry: #d41472;
  --gradient: linear-gradient(110deg, #ff2daa 0%, #7b4dff 52%, #00d4ff 100%);
  --sans: Arial, "Helvetica Neue", Helvetica, sans-serif;
  --display: Arial, "Helvetica Neue", Helvetica, sans-serif;
  --serif: Arial, "Helvetica Neue", Helvetica, sans-serif;
  --shadow: 0 38px 90px -28px rgba(72, 36, 138, .34);
  --gap: 1.6rem;
  --step-1: 1.2rem;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: .2em; }
a:hover { color: var(--violet); }
button, input, textarea { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  margin-bottom: 1.25rem;
  font-weight: 700;
  letter-spacing: -.035em;
  line-height: .98;
  text-wrap: balance;
}
h1, h2 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -.06em;
}
h1 { max-width: 10.5ch; font-size: clamp(3.5rem, 7vw, 6.65rem); line-height: .91; }
h2 { max-width: 15ch; font-size: clamp(2.65rem, 5.2vw, 5rem); line-height: .94; }
h3 { font-size: clamp(1.35rem, 2vw, 1.75rem); letter-spacing: -.03em; line-height: 1.05; }

.gradient-text {
  color: transparent;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  padding-right: .06em;
  margin-right: -.06em;
}
.shell, .wrap { width: min(calc(100% - 40px), 1340px); margin-inline: auto; }
.narrow { width: min(calc(100% - 40px), 860px); margin-inline: auto; }
.section, .sec { padding: clamp(5.25rem, 9vw, 8.75rem) 0; }
.section-head { max-width: 870px; margin-bottom: clamp(2.8rem, 6vw, 4.8rem); }
.section-head > p:last-child {
  max-width: 66ch;
  color: var(--body);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
}
.eyebrow, .kicker, .label {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  margin: 0 0 1.4rem;
  padding: .42rem .75rem;
  border-radius: 999px;
  color: var(--white);
  background: var(--ink);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.eyebrow::before, .kicker::before {
  width: 1.4rem;
  height: 4px;
  border-radius: 999px;
  background: var(--gradient);
  content: "";
}
.eyebrow.light { color: var(--white); background: rgba(255, 255, 255, .12); }
.muted, .quiet, .updated { color: var(--grey); }
.measure { max-width: 64ch; }

.nav, .masthead {
  position: absolute;
  z-index: 50;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 74px;
  padding: 1rem max(20px, calc((100vw - 1340px) / 2));
  background: transparent;
}
.nav {
  position: fixed;
  border-bottom: 1px solid rgba(227, 230, 236, .82);
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 10px 36px rgba(31, 24, 49, .05);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
}
.brand, .wordmark, .logo {
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -.025em;
  text-decoration: none;
  white-space: nowrap;
}
.nav nav, .masthead nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  font-size: .88rem;
  font-weight: 600;
}
.nav nav > a:not(.button), .masthead nav > a:not(.button) {
  position: relative;
  text-decoration: none;
  transition: color .18s ease;
}
.nav nav > a:not(.button)::after, .masthead nav > a:not(.button)::after {
  position: absolute;
  right: 0;
  bottom: -.45rem;
  left: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--gradient);
  content: "";
  opacity: 0;
  transform: scaleX(.3);
  transition: opacity .18s ease, transform .18s ease;
}
.nav nav > a:not(.button):hover::after,
.masthead nav > a:not(.button):hover::after {
  opacity: 1;
  transform: scaleX(1);
}
.mobile-menu {
  position: relative;
  display: none;
}
.nav-buy-short { display: none; }
.mobile-menu summary {
  display: flex;
  align-items: center;
  gap: .48rem;
  min-height: 42px;
  padding: .6rem .78rem;
  border: 1px solid rgba(5, 5, 5, .12);
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 10px 32px -20px rgba(5, 5, 5, .45);
  cursor: pointer;
  list-style: none;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary::after {
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1;
  content: "+";
  transition: transform .2s ease;
}
.mobile-menu[open] summary {
  border-color: rgba(123, 77, 255, .42);
  box-shadow: 0 14px 34px -18px rgba(123, 77, 255, .5);
}
.mobile-menu[open] summary::after { transform: rotate(45deg); }
.mobile-menu-panel {
  position: absolute;
  top: calc(100% + .7rem);
  right: 0;
  width: min(260px, calc(100vw - 30px));
  padding: .45rem;
  overflow: hidden;
  border: 1px solid rgba(5, 5, 5, .09);
  border-radius: 16px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 28px 70px -24px rgba(43, 20, 88, .42);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.mobile-menu-panel::before {
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--gradient);
  content: "";
}
.mobile-menu-panel a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: .74rem .9rem;
  border-radius: 10px;
  text-decoration: none;
  transition: color .18s ease, background .18s ease;
}
.mobile-menu-panel a:hover {
  color: var(--ink);
  background: linear-gradient(110deg, rgba(255, 45, 170, .08), rgba(123, 77, 255, .08), rgba(0, 212, 255, .08));
}
.simple-nav, .masthead {
  position: relative;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: .86rem 1.35rem;
  border: 0;
  border-radius: 6px;
  color: var(--white);
  background: var(--gradient);
  box-shadow: 0 14px 30px -12px rgba(123, 77, 255, .5);
  font-weight: 700;
  text-align: center;
  text-shadow: 0 1px 2px rgba(5, 5, 5, .28);
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, filter .18s ease, box-shadow .18s ease;
}
.button:hover, .btn:hover {
  color: var(--white);
  filter: saturate(1.12) contrast(1.03);
  box-shadow: 0 18px 36px -12px rgba(123, 77, 255, .62);
  transform: translateY(-2px);
}
.button.secondary, .btn.ghost {
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: none;
  text-shadow: none;
}
.button.secondary:hover, .btn.ghost:hover { color: var(--violet); border-color: var(--violet); }
.button.small, .btn.small { min-height: 42px; padding: .62rem .92rem; font-size: .84rem; }
.button.full { width: 100%; }
.button[disabled], .checkout-disabled {
  cursor: not-allowed;
  opacity: 1;
  transform: none;
}
.text-button, .text-link {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-weight: 700;
  text-decoration: none;
}
.text-button span { color: var(--violet); }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.35rem; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--violet);
  outline-offset: 4px;
}

.hero {
  overflow: hidden;
  min-height: 100svh;
  padding: clamp(8.5rem, 15vh, 11rem) 0 0;
  background:
    radial-gradient(42% 40% at 8% 6%, rgba(255, 45, 170, .095) 0%, transparent 70%),
    radial-gradient(40% 36% at 92% 10%, rgba(0, 212, 255, .09) 0%, transparent 70%),
    radial-gradient(36% 40% at 78% 92%, rgba(123, 77, 255, .075) 0%, transparent 70%),
    var(--white);
}
.hero.subhero { min-height: auto; padding: clamp(9rem, 14vw, 12rem) 0 clamp(5rem, 9vw, 8rem); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.04fr .72fr;
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
}
.hero-copy { position: relative; z-index: 2; }
.hero h1 { margin-bottom: 1.7rem; }
.lede, .sub {
  max-width: 42rem;
  margin-bottom: 2rem;
  color: var(--body);
  font-size: clamp(1.12rem, 1.8vw, 1.38rem);
  line-height: 1.5;
  text-wrap: pretty;
}
.fine {
  margin: 1.35rem 0 0;
  color: var(--grey);
  font-size: .82rem;
}
.cover-stage {
  position: relative;
  margin: 0;
  padding: 2rem;
  perspective: 1300px;
}
.cover-stage::before {
  position: absolute;
  z-index: 0;
  inset: 13% -5% 4%;
  border-radius: 50%;
  background:
    radial-gradient(closest-side, rgba(123, 77, 255, .22), rgba(255, 45, 170, .12) 54%, transparent 77%);
  filter: blur(14px);
  content: "";
}
.cover-stage img {
  position: relative;
  z-index: 1;
  width: min(100%, 380px);
  margin-inline: auto;
  border-radius: 3px 10px 10px 3px;
  box-shadow: var(--shadow);
  transform: rotateY(-10deg) rotateX(1deg);
}
.proof-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(4rem, 8vw, 7rem);
  border-top: 1px solid var(--line);
}
.proof-rail div {
  min-height: 174px;
  padding: 1.6rem 1.5rem;
  border-right: 1px solid var(--line);
}
.proof-rail div:first-child { border-left: 1px solid var(--line); }
.proof-rail strong {
  display: block;
  margin-bottom: .55rem;
  color: transparent;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  max-width: 13ch;
  font-size: clamp(1.75rem, 2.5vw, 2.65rem);
  font-weight: 850;
  letter-spacing: -.06em;
  line-height: .96;
  text-wrap: balance;
}
.proof-rail span { display: block; max-width: 23ch; color: var(--grey); font-size: .82rem; }

.intro-video {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background:
    radial-gradient(42% 58% at 16% 35%, rgba(255, 45, 170, .08) 0%, transparent 72%),
    radial-gradient(36% 50% at 88% 65%, rgba(0, 212, 255, .08) 0%, transparent 74%),
    var(--cream);
}
.intro-video-head {
  padding-bottom: clamp(2.75rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--line);
}
.intro-video-head-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
  align-items: end;
  gap: clamp(2.5rem, 4.5vw, 4.5rem);
}
.intro-video-head h2 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.5rem, 6vw, 6.5rem);
  line-height: .88;
}
.intro-video-lede {
  max-width: 40ch;
  margin: 0 0 .4rem;
  color: var(--body);
  font-size: clamp(1.18rem, 1.8vw, 1.5rem);
  line-height: 1.42;
}
.intro-video-body {
  display: grid;
  grid-template-columns: minmax(320px, 460px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(3rem, 6vw, 6rem);
  padding-top: clamp(3rem, 5vw, 4.5rem);
}
.intro-video-frame {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 10px;
  border-radius: 26px;
  background: var(--gradient);
  box-shadow: var(--shadow);
}
.intro-video-frame::after {
  position: absolute;
  z-index: -1;
  inset: 12% -16% -8%;
  border-radius: 50%;
  background: rgba(123, 77, 255, .13);
  filter: blur(28px);
  content: "";
}
.intro-video-player {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  border: 0;
  border-radius: 18px;
  background: #111;
  object-fit: cover;
  object-position: center 28%;
}
.intro-video-story {
  max-width: 780px;
  color: var(--body);
}
.intro-video-story h3 {
  max-width: 15ch;
  margin-bottom: 1.5rem;
  color: var(--ink);
  font-size: clamp(2.5rem, 4vw, 4.5rem);
  line-height: .94;
}
.intro-video-story > p:not(.intro-video-bio-label) {
  max-width: 66ch;
  margin-bottom: 1rem;
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  line-height: 1.58;
}
.intro-video-bio-label {
  margin-bottom: .9rem;
  color: var(--ink);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.intro-video-note {
  display: grid;
  grid-template-columns: minmax(120px, .38fr) 1fr;
  gap: 1.2rem;
  max-width: 58ch;
  margin-top: 1.75rem;
  padding: 1.2rem 0;
  border-block: 1px solid var(--line);
  line-height: 1.45;
}
.intro-video-note strong {
  color: var(--ink);
  font-size: .76rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.intro-video-note span {
  color: var(--grey);
  font-size: .92rem;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.benefit-card {
  position: relative;
  min-height: 360px;
  padding: clamp(1.6rem, 3.2vw, 2.6rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.benefit-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: var(--gradient);
  content: "";
}
.benefit-card > span {
  display: block;
  margin-bottom: 3.5rem;
  color: var(--grey);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.benefit-card p { margin-bottom: 2rem; color: var(--body); }
.benefit-card a {
  position: absolute;
  right: 2.2rem;
  bottom: 2rem;
  left: 2.2rem;
  color: var(--violet);
  font-size: .82rem;
  font-weight: 700;
  text-decoration: none;
}

.ink { color: var(--white); background: var(--ink); }
.ink h2 { color: var(--white); }
.mechanism {
  overflow: hidden;
  background:
    radial-gradient(42% 52% at 0% 0%, rgba(255, 45, 170, .12), transparent 72%),
    radial-gradient(40% 50% at 100% 100%, rgba(0, 212, 255, .09), transparent 72%),
    var(--ink);
}
.mechanism-head {
  display: grid;
  grid-template-columns: 1.05fr .75fr;
  align-items: end;
  gap: clamp(3rem, 8vw, 8rem);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.mechanism-head h2 { max-width: 12ch; margin-bottom: 0; }
.mechanism-head > p {
  max-width: 40rem;
  margin-bottom: .2rem;
  color: rgba(255, 255, 255, .72);
  font-size: clamp(1.08rem, 1.7vw, 1.28rem);
  line-height: 1.55;
}
.mechanism-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, .16);
  border-left: 1px solid rgba(255, 255, 255, .16);
}
.mechanism-proof {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  min-height: 390px;
  padding: clamp(1.7rem, 3.2vw, 2.7rem);
  border-right: 1px solid rgba(255, 255, 255, .16);
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}
.mechanism-proof > span {
  display: block;
  margin-bottom: clamp(2.8rem, 5vw, 4.8rem);
  color: transparent;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.mechanism-proof h3 {
  max-width: 13ch;
  color: var(--white);
  font-size: clamp(1.75rem, 2.5vw, 2.5rem);
}
.mechanism-proof p {
  color: rgba(255, 255, 255, .7);
  font-size: .94rem;
}
.mechanism-proof a {
  color: var(--white);
  font-size: .82rem;
  font-weight: 700;
  text-decoration-color: var(--violet);
}
.mechanism-synthesis {
  display: grid;
  grid-template-columns: 1.15fr .65fr;
  align-items: end;
  gap: clamp(2rem, 7vw, 7rem);
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  padding-top: clamp(2rem, 4vw, 3.5rem);
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.mechanism-synthesis blockquote {
  max-width: 24ch;
  margin: 0;
  font-size: clamp(1.8rem, 3.4vw, 3.6rem);
  font-weight: 750;
  letter-spacing: -.055em;
  line-height: 1.04;
}
.mechanism-synthesis p { color: rgba(255, 255, 255, .7); }
.mechanism-synthesis .text-link { color: var(--white); }

.science {
  background:
    radial-gradient(35% 30% at 100% 0%, rgba(0, 212, 255, .08), transparent 72%),
    var(--white);
}
.science-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.study {
  min-height: 310px;
  padding: clamp(1.7rem, 3.6vw, 3rem);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
}
.study.primary {
  background:
    radial-gradient(100% 120% at 0 0, rgba(255, 45, 170, .12), transparent 64%),
    var(--cream);
}
.study-type {
  margin-bottom: 2.8rem;
  color: var(--violet);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.study strong {
  display: block;
  margin-bottom: .8rem;
  font-size: clamp(2rem, 4vw, 3.7rem);
  letter-spacing: -.06em;
  line-height: .98;
}
.study p:not(.study-type) { max-width: 42rem; color: var(--body); }
.study a { color: var(--violet); font-size: .82rem; font-weight: 700; text-decoration: none; }
.science-foot {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 1.5rem;
  padding: 1.35rem 0 0;
  border-top: 1px solid var(--line);
}
.science-foot p { max-width: 70ch; color: var(--grey); font-size: .79rem; }
.science-foot a { flex: 0 0 auto; color: var(--violet); font-size: .86rem; font-weight: 700; }

.offer-grid {
  display: grid;
  grid-template-columns: .85fr 1.05fr;
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
}
.offer-lede { max-width: 38rem; color: rgba(255, 255, 255, .7); font-size: 1.12rem; }
.format-line {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}
.format-line li {
  padding: .36rem .58rem;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 4px;
  color: rgba(255, 255, 255, .78);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .07em;
}
.offer-card {
  padding: clamp(2rem, 4vw, 3.5rem);
  border-radius: 12px;
  color: var(--ink);
  background: var(--white);
  box-shadow: 0 28px 90px rgba(123, 77, 255, .18);
}
.product-label {
  margin-bottom: .8rem;
  color: var(--violet);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.price {
  margin-bottom: 1.7rem;
  font-size: clamp(3.8rem, 7vw, 6.5rem);
  font-weight: 850;
  letter-spacing: -.08em;
  line-height: .95;
}
.price small {
  display: block;
  margin-top: .75rem;
  color: var(--grey);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: 0;
}
.checklist { margin: 0 0 1.8rem; padding: 0; list-style: none; }
.checklist li { position: relative; padding: .78rem 0 .78rem 1.8rem; border-top: 1px solid var(--line); font-size: .92rem; }
.checklist li::before {
  position: absolute;
  top: 1.02rem;
  left: .15rem;
  width: .86rem;
  height: .86rem;
  background: var(--gradient);
  clip-path: polygon(14% 44%, 0 60%, 40% 100%, 100% 16%, 84% 4%, 38% 68%);
  content: "";
}
.micro { margin: .85rem 0 0; color: var(--grey); font-size: .75rem; line-height: 1.45; text-align: center; }

.free-file-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .55rem;
  margin-top: .75rem;
}
.offer-audio {
  display: block;
  width: 100%;
  height: 50px;
  margin-top: 1rem;
  accent-color: var(--violet);
}
.free-file-links a {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: .65rem .55rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--cream);
  font-size: .76rem;
  font-weight: 800;
  text-decoration: none;
}
.free-file-links a:hover { color: var(--violet); border-color: var(--violet); }

.audiobook-youtube {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(420px, 1.15fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: clamp(3rem, 7vw, 6rem);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 14px;
  background: rgba(255, 255, 255, .055);
}
.audiobook-youtube-copy { padding: clamp(2rem, 5vw, 4.5rem); padding-right: 0; }
.audiobook-youtube-copy h3 {
  max-width: 11ch;
  color: var(--white);
  font-size: clamp(2.4rem, 5vw, 4.5rem);
}
.audiobook-youtube-copy > p:not(.eyebrow) { max-width: 42ch; color: rgba(255, 255, 255, .68); }
.audiobook-youtube-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.8rem;
}
.audiobook-youtube-actions > span { color: rgba(255, 255, 255, .56); font-size: .72rem; font-weight: 700; }
.audiobook-youtube-embed { align-self: center; min-height: 0; aspect-ratio: 16 / 9; }

.practice-library {
  background:
    radial-gradient(34% 30% at 0 0, rgba(255, 45, 170, .07), transparent 72%),
    radial-gradient(34% 30% at 100% 100%, rgba(0, 212, 255, .07), transparent 72%),
    var(--cream);
}
.video-collection-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.video-collection-card {
  display: grid;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 26px 70px -54px rgba(31, 14, 70, .55);
  overflow: hidden;
}
.video-collection-copy { padding: clamp(1.5rem, 3.3vw, 2.5rem); }
.video-collection-copy > span {
  display: block;
  margin-bottom: 2rem;
  color: var(--violet);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.video-collection-copy h3 {
  max-width: 14ch;
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
}
.video-collection-copy p { max-width: 38ch; color: var(--body); }
.video-duration-links {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}
.video-duration-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: .55rem .8rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--grey);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .05em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color .18s ease, color .18s ease, background-color .18s ease, transform .18s ease;
}
.video-duration-links a:hover,
.video-duration-links a:focus-visible {
  border-color: var(--violet);
  color: var(--violet);
  transform: translateY(-1px);
}
.video-duration-links a[aria-current="true"] {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}
.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--ink);
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-collection-link {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  padding: .85rem clamp(1.5rem, 3.3vw, 2.5rem);
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-size: .78rem;
  font-weight: 800;
  text-decoration: none;
}
.video-collection-link:hover { color: var(--violet); }
.channel-link { margin: 2rem 0 0; text-align: center; }
.channel-link a { color: var(--violet); font-size: .86rem; font-weight: 800; text-decoration: none; }

.welcome-dialog {
  width: min(calc(100% - 30px), 760px);
  max-height: min(90vh, 780px);
  margin: auto;
  padding: 0;
  overflow: auto;
  border: 0;
  border-radius: 18px;
  color: var(--ink);
  background:
    radial-gradient(46% 40% at 0 0, rgba(255, 45, 170, .1), transparent 70%),
    radial-gradient(46% 44% at 100% 100%, rgba(0, 212, 255, .1), transparent 70%),
    var(--white);
  box-shadow: 0 40px 120px -24px rgba(17, 10, 30, .5);
}
.welcome-dialog::backdrop {
  background: rgba(9, 7, 12, .6);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
}
.welcome-close-form {
  position: absolute;
  z-index: 2;
  top: 1rem;
  right: 1rem;
  margin: 0;
}
.welcome-close-form button {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255, 255, 255, .88);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}
.welcome-dialog-body { padding: clamp(1.75rem, 4.5vw, 3.25rem); }
.welcome-dialog h2 {
  max-width: 13ch;
  margin-right: 2.5rem;
  font-size: clamp(2.35rem, 4.5vw, 3.75rem);
}
.welcome-dialog-body > p:not(.eyebrow, .welcome-dialog-note) {
  max-width: 57ch;
  color: var(--body);
  font-size: clamp(.95rem, 1.35vw, 1.04rem);
}
.welcome-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}
.welcome-dialog-note {
  margin: .9rem 0 0;
  color: var(--grey);
  font-size: .76rem;
  font-weight: 700;
}

.faq { background: var(--cream); }
.faq h2 { margin-bottom: 2.8rem; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-of-type { border-bottom: 1px solid var(--line); }
.faq summary {
  position: relative;
  padding: 1.25rem 2.5rem 1.25rem 0;
  cursor: pointer;
  font-size: 1.06rem;
  font-weight: 700;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { position: absolute; right: .2rem; color: var(--violet); font-size: 1.35rem; content: "+"; }
.faq details[open] summary::after { content: "–"; }
.faq details p { max-width: 68ch; color: var(--body); }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(420px, .72fr);
  align-items: start;
  gap: clamp(3rem, 9vw, 9rem);
}
.contact-copy {
  position: sticky;
  top: 120px;
}
.contact-copy h2 { max-width: 11ch; }
.contact-copy > p:not(.eyebrow) {
  max-width: 50ch;
  color: var(--body);
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
}
.contact-copy .contact-boundary {
  margin-top: 2rem;
  color: var(--grey);
  font-size: .8rem;
}
.feedback-request {
  display: grid;
  gap: .45rem;
  max-width: 34rem;
  margin-top: 2rem;
  padding: 1.2rem 1.25rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--violet);
  border-radius: 8px;
  background: rgba(255, 255, 255, .72);
}
.feedback-request strong { color: var(--ink); font-size: .84rem; }
.feedback-request span { color: var(--body); font-size: .82rem; line-height: 1.5; }
.contact-form {
  padding: clamp(1.5rem, 3.5vw, 2.8rem);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 28px 80px -36px rgba(72, 36, 138, .36);
}
.contact-fields {
  display: grid;
  gap: .65rem;
  margin-bottom: 1.35rem;
}
.contact-fields label {
  margin-top: .45rem;
  color: var(--ink);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.contact-fields input,
.contact-fields textarea {
  width: 100%;
  border: 1px solid #cfd4dd;
  border-radius: 6px;
  color: var(--ink);
  background: var(--white);
  transition: border-color .18s ease, box-shadow .18s ease;
}
.contact-fields input { min-height: 50px; padding: .75rem .9rem; }
.contact-fields textarea {
  min-height: 168px;
  padding: .9rem;
  line-height: 1.5;
  resize: vertical;
}
.contact-fields input:hover,
.contact-fields textarea:hover { border-color: #aeb5c2; }
.contact-fields input:focus,
.contact-fields textarea:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(123, 77, 255, .11);
}
.form-honeypot {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
}
.form-note,
.form-status {
  margin: .85rem 0 0;
  color: var(--grey);
  font-size: .76rem;
  line-height: 1.45;
  text-align: center;
}
.form-status:empty { display: none; }
.form-status.success { color: #176b43; }
.form-status.error { color: #9f1239; }
.form-status a { font-weight: 700; }

.close {
  text-align: center;
  background:
    radial-gradient(35% 55% at 15% 40%, rgba(255, 45, 170, .08), transparent 70%),
    radial-gradient(35% 55% at 85% 40%, rgba(0, 212, 255, .08), transparent 70%),
    var(--white);
}
.close .eyebrow { margin-inline: auto; }
.close h2, .close > .shell > p { margin-inline: auto; }
.close > .shell > p:not(.eyebrow) { max-width: 52ch; color: var(--body); font-size: 1.08rem; }
.close .actions { justify-content: center; }

footer {
  padding: 0;
  color: rgba(255, 255, 255, .68);
  background: var(--ink);
}
.footer-contact {
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
  background:
    radial-gradient(42% 72% at 4% 20%, rgba(255, 45, 170, .14), transparent 68%),
    radial-gradient(42% 72% at 96% 80%, rgba(0, 212, 255, .12), transparent 68%);
}
.footer-contact .contact-copy h2 { color: var(--white); }
.footer-contact .contact-copy > p:not(.eyebrow) { color: rgba(255, 255, 255, .72); }
.footer-contact .contact-copy .contact-boundary { color: rgba(255, 255, 255, .48); }
.footer-grid, .frow {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}
.footer-bottom {
  padding: 2.6rem 0 3.2rem;
  border-top: 1px solid rgba(255, 255, 255, .14);
}
footer b { color: var(--white); }
footer p { margin-bottom: 0; }
footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .8rem 1.15rem; }
footer a { color: rgba(255, 255, 255, .72); }

/* Supporting pages */
.legal { min-height: calc(100vh - 74px); padding: clamp(4rem, 9vw, 7rem) 0; background: var(--cream); }
.legal .shell { max-width: 840px; }
.legal h1 { max-width: 15ch; }
.legal h2 { margin-top: 2.7rem; font-size: clamp(1.8rem, 3vw, 2.6rem); }
.legal p, .legal li { color: var(--body); }

.reader {
  width: min(calc(100% - 40px), 760px);
  margin-inline: auto;
  padding: 2rem 0 6rem;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.66;
}
.reader .label, .reader .ledger, .reader h1, .reader h2, .reader h3, .reader .btn { font-family: var(--sans); }
.titlepage { padding: 3rem 0 4rem; border-bottom: 1px solid var(--line); }
.titlepage h1 { max-width: none; font-size: clamp(3rem, 7vw, 5rem); }
.verse { color: var(--body); }
.reader blockquote {
  margin: 2.5rem 0;
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-left: 4px solid var(--pink);
  color: var(--body);
}
.ledger { color: var(--grey); font-size: .7rem; font-weight: 700; letter-spacing: .08em; }
.chapter { padding-top: 4rem; }
.chapter h2 { max-width: none; font-size: clamp(2.5rem, 5vw, 4rem); }
.chapter h3 { margin-top: 3rem; font-size: 1.8rem; }
.chapter p, .prose p { color: #2f3038; }
.reader hr { margin: 4rem 0; border: 0; border-top: 1px solid var(--line); }
.reader-skip {
  position: fixed;
  z-index: 100;
  top: .7rem;
  left: .7rem;
  padding: .7rem 1rem;
  color: #fff;
  background: var(--ink);
  font-family: var(--sans);
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-180%);
}
.reader-skip:focus { transform: translateY(0); }
.reader-edition-label { margin-top: 2.5rem; }
.reader-toc {
  margin: 4rem 0 1rem;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  border: 1px solid var(--line);
  background: var(--cream);
  font-family: var(--sans);
}
.reader-toc h2 { margin: 0 0 1.4rem; font-size: clamp(2rem, 4vw, 3rem); }
.reader-toc ol { display: grid; gap: .7rem; margin: 0; padding-left: 1.3rem; }
.reader-toc a { color: var(--ink); font-weight: 700; text-underline-offset: .18em; }
.reader h4 {
  margin: 2.5rem 0 .8rem;
  font-family: var(--sans);
  font-size: 1.25rem;
  letter-spacing: -.02em;
}
.reader .fnref {
  margin-left: .12em;
  color: var(--violet);
  font-family: var(--sans);
  font-size: .72em;
  font-weight: 800;
  text-decoration: none;
  vertical-align: super;
}
.reader a { overflow-wrap: anywhere; }
.reader .endnote { font-size: .9rem; overflow-wrap: anywhere; }
.reader .endnote > a:first-child { color: var(--violet); font-family: var(--sans); font-weight: 800; text-decoration: none; }
.reader-end-card {
  margin-top: 5rem;
  padding: clamp(1.6rem, 5vw, 3rem);
  border-top: 5px solid var(--violet);
  background: var(--cream);
  font-family: var(--sans);
}
.reader-end-card h2 { margin-top: .4rem; font-size: clamp(2.2rem, 5vw, 3.8rem); }
.reader-end-card p { color: var(--body); }
.reader-end-link { display: inline-block; margin: 1rem 0 0 1rem; font-weight: 800; }

.room {
  min-height: calc(100vh - 74px);
  display: grid;
  place-items: center;
  padding: 4rem 20px;
  background:
    radial-gradient(42% 40% at 8% 6%, rgba(255, 45, 170, .09), transparent 70%),
    radial-gradient(40% 36% at 92% 10%, rgba(0, 212, 255, .09), transparent 70%),
    var(--white);
}
.inner { width: min(100%, 760px); text-align: center; }
.inner .label { color: var(--white); }
.phase {
  min-height: 8rem;
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 750;
  letter-spacing: -.035em;
  line-height: 1.18;
}
.hair { height: 5px; margin: 2rem 0; background: var(--line); overflow: hidden; }
.hair i { display: block; width: 100%; height: 100%; background: var(--gradient); transform: scaleX(0); transform-origin: left; }

.cite {
  margin: 1rem 0 2rem;
  padding: 1rem 0 1rem 1.2rem;
  border-left: 3px solid var(--violet);
  color: var(--body);
}
.cite a { word-break: break-word; }
.claim { max-width: 28ch; margin: 3.5rem 0 1rem; font-size: clamp(2rem, 4vw, 3.8rem); }
.note { color: var(--body); }
.hl { color: transparent; background: var(--gradient); -webkit-background-clip: text; background-clip: text; }
.audio-hold, .research-note, .limit-box {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--pink);
  background: #fff0f8;
  color: var(--body);
}
.evidence-band { border-block: 1px solid var(--line); background: var(--white); }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.evidence-grid article { padding: 2rem; border-right: 1px solid var(--line); }
.evidence-grid article:first-child { border-left: 1px solid var(--line); }
.evidence-grid b { display: block; color: var(--violet); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.evidence-grid strong { display: block; margin: .4rem 0; font-size: 1.45rem; letter-spacing: -.04em; }
.evidence-grid span { color: var(--grey); font-size: .82rem; }

@media (max-width: 1100px) {
  .intro-video-head-grid, .intro-video-body { grid-template-columns: 1fr; }
  .intro-video-head-grid { gap: 1.5rem; }
  .intro-video-head h2 { max-width: 11ch; }
  .intro-video-lede { max-width: 40ch; }
  .intro-video-body { gap: 2.5rem; }
  .intro-video-frame { width: min(100%, 460px); margin-inline: auto; }
  .intro-video-story { max-width: 760px; margin-inline: auto; }
}

@media (max-width: 980px) {
  .nav nav > a:not(.button), .masthead nav > a:not(.button) { display: none; }
  .mobile-menu { display: block; }
  .nav nav, .masthead nav { gap: .7rem; }
  .hero-grid, .mechanism-head, .mechanism-synthesis, .offer-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 2.5rem; }
  .hero-copy { order: 1; }
  .cover-stage { order: 2; width: min(100%, 500px); margin-inline: auto; }
  .proof-rail { grid-template-columns: repeat(2, 1fr); }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .mechanism-proof-grid { grid-template-columns: 1fr; }
  .mechanism-proof { min-height: 0; }
  .science-grid { grid-template-columns: 1fr; }
  .contact-copy { position: static; }
  .audiobook-youtube { max-width: 760px; grid-template-columns: 1fr; gap: 0; }
  .audiobook-youtube-copy { padding: clamp(2rem, 6vw, 4rem); }
}

@media (max-width: 650px) {
  .shell, .wrap, .narrow { width: min(calc(100% - 30px), 1340px); }
  h1 { font-size: clamp(2.65rem, 12.5vw, 4.4rem); }
  h2 { font-size: clamp(2.35rem, 11vw, 3.5rem); }
  .nav, .masthead { min-height: 64px; gap: .55rem; padding-inline: 15px; }
  .brand, .wordmark, .logo { font-size: .92rem; }
  .nav .button, .masthead .button { min-height: 40px; padding: .48rem .62rem; font-size: .7rem; white-space: nowrap; }
  .nav-buy-full { display: none; }
  .nav-buy-short { display: inline; }
  .mobile-menu summary { min-height: 40px; padding: .52rem .68rem; font-size: .74rem; }
  .hero { min-height: auto; padding-top: 7.5rem; }
  .cover-stage { padding: 1.2rem; }
  .cover-stage img { width: 230px; transform: none; }
  .proof-rail { margin-top: 3.5rem; }
  .proof-rail div { min-height: 154px; padding: 1.25rem 1rem; }
  .proof-rail strong { font-size: clamp(1.45rem, 7vw, 2rem); }
  .actions { align-items: stretch; flex-direction: column; }
  .actions .button, .actions .btn { width: 100%; }
  .text-button { justify-content: center; min-height: 42px; }
  .benefit-grid, .mechanism-proof-grid, .evidence-grid, .video-collection-grid { grid-template-columns: 1fr; }
  .benefit-card { min-height: 320px; }
  .intro-video-note { grid-template-columns: 1fr; gap: .55rem; }
  .mechanism-proof { padding: 1.6rem; }
  .mechanism-proof > span { margin-bottom: 2.5rem; }
  .science-foot, .footer-grid, .frow { flex-direction: column; }
  .science-foot a { flex: auto; }
  footer nav { justify-content: flex-start; }
  .contact-form { padding: 1.25rem; }
  .free-file-links { grid-template-columns: 1fr; }
  .video-collection-copy { padding: 1.5rem; }
  .video-collection-link { padding-inline: 1.5rem; }
  .audiobook-youtube { grid-template-columns: 1fr; gap: 0; }
  .audiobook-youtube-copy { padding: 2rem 1.5rem; }
  .audiobook-youtube-embed { min-height: 0; }
  .reader { width: min(calc(100% - 30px), 760px); font-size: 16px; }
  .reader .titlepage { padding-top: 2rem; }
  .reader-end-card .button { width: 100%; text-align: center; }
  .reader-end-link { margin-left: 0; }
  .welcome-dialog-actions { align-items: stretch; flex-direction: column; }
  .welcome-dialog-actions .button { width: 100%; }
  .welcome-dialog h2 { margin-right: 1.7rem; }
}

.practice-entry {
  width: min(100%, 900px);
  padding: clamp(2rem, 6vw, 5rem);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, .94);
  box-shadow: var(--shadow);
}
.practice-entry h1 { max-width: 11ch; }
.practice-entry .lede { max-width: 58ch; }

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