:root {
  --bg: #030914;
  --bg-deep: #071526;
  --panel: rgba(8, 22, 38, 0.74);
  --panel-strong: rgba(6, 17, 31, 0.92);
  --line: rgba(165, 200, 255, 0.16);
  --line-strong: rgba(182, 214, 255, 0.3);
  --text: #ebf3ff;
  --muted: #afc1d8;
  --silver: #f6f7fb;
  --glow: #64b7ff;
  --glow-soft: rgba(100, 183, 255, 0.35);
  --gold: #d7c08a;
  --shadow: 0 18px 60px rgba(2, 7, 16, 0.5);
  --radius-lg: 28px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --max-width: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(87, 158, 255, 0.16), transparent 28%),
    radial-gradient(circle at 80% 12%, rgba(103, 182, 255, 0.12), transparent 20%),
    radial-gradient(circle at 50% 50%, rgba(36, 84, 153, 0.16), transparent 36%),
    linear-gradient(180deg, #02060f 0%, #04111d 38%, #05131e 100%);
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.page-shell {
  position: relative;
  isolation: isolate;
}

.noise {
  position: fixed;
  inset: 0;
  z-index: -3;
  opacity: 0.2;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 15% 15%, rgba(255, 255, 255, 0.2) 0 1px, transparent 1px),
    radial-gradient(circle at 85% 25%, rgba(255, 255, 255, 0.24) 0 1px, transparent 1px),
    radial-gradient(circle at 50% 85%, rgba(255, 255, 255, 0.18) 0 1px, transparent 1px);
  background-size: 240px 240px;
}

.site-header,
.section,
.site-footer {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(176, 212, 255, 0.12);
  border-radius: 999px;
  background: rgba(5, 14, 25, 0.7);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 40px rgba(1, 5, 12, 0.36);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand-mark {
  position: relative;
  width: 1.8rem;
  height: 1.8rem;
  flex: 0 0 auto;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.98) 0 12%, transparent 13%);
  box-shadow: 0 0 30px rgba(113, 189, 255, 0.28);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  background: linear-gradient(180deg, rgba(246, 247, 251, 0.96), rgba(184, 220, 255, 0.35));
  transform: translate(-50%, -50%);
  border-radius: 999px;
}

.brand-mark::before {
  width: 0.2rem;
  height: 1.4rem;
}

.brand-mark::after {
  width: 1.4rem;
  height: 0.2rem;
}

.brand-text {
  display: grid;
  gap: 0.12rem;
  min-width: 0;
}

.brand-text strong {
  font-family: "Cinzel", serif;
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand-text span {
  color: var(--muted);
  font-size: 0.82rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.96rem;
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--silver);
}

.menu-toggle {
  display: none;
  position: relative;
  width: 2.9rem;
  height: 2.9rem;
  padding: 0;
  border: 1px solid rgba(177, 215, 255, 0.16);
  border-radius: 999px;
  background: rgba(5, 14, 25, 0.88);
  color: var(--text);
}

.menu-toggle span {
  position: absolute;
  left: 0.76rem;
  width: 1.34rem;
  height: 2px;
  background: var(--silver);
  border-radius: 999px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle span:nth-child(1) {
  top: 0.95rem;
}

.menu-toggle span:nth-child(2) {
  top: 1.38rem;
}

.menu-toggle span:nth-child(3) {
  top: 1.81rem;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(0.43rem) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-0.43rem) rotate(-45deg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hero {
  position: relative;
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 2rem auto 0;
  padding: clamp(3.5rem, 6vw, 6rem) 0 4rem;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 420px);
  align-items: start;
  gap: clamp(2rem, 4vw, 4rem);
}

.hero > .hero-intro {
  grid-column: 1 / -1;
  justify-self: center;
  margin-bottom: 0.3rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 2% 24% 2% 26%;
  z-index: -2;
  border-radius: 999px;
  background:
    radial-gradient(ellipse at center, rgba(234, 245, 255, 0.18) 0, rgba(149, 203, 255, 0.1) 20%, rgba(65, 120, 203, 0.08) 42%, transparent 76%),
    radial-gradient(ellipse at center, rgba(102, 175, 255, 0.12) 0, transparent 68%);
  filter: blur(42px);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border: 1px solid rgba(175, 214, 255, 0.08);
  border-radius: calc(var(--radius-lg) + 10px);
  background: linear-gradient(135deg, rgba(9, 24, 42, 0.62), rgba(6, 16, 28, 0.28));
  box-shadow: var(--shadow);
}

.starfield {
  position: absolute;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  opacity: 0.9;
  background-repeat: repeat;
}

.starfield-one {
  background-image:
    radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.7) 0 1px, transparent 1.6px),
    radial-gradient(circle at 75% 30%, rgba(255, 255, 255, 0.6) 0 1px, transparent 1.8px),
    radial-gradient(circle at 55% 75%, rgba(255, 255, 255, 0.55) 0 1px, transparent 1.8px),
    radial-gradient(circle at 84% 60%, rgba(164, 209, 255, 0.7) 0 1px, transparent 2px);
  background-size: 280px 220px;
  animation: drift 24s linear infinite;
}

.starfield-two {
  opacity: 0.46;
  background-image:
    radial-gradient(circle at 20% 22%, rgba(255, 255, 255, 0.8) 0 1px, transparent 1.7px),
    radial-gradient(circle at 60% 35%, rgba(255, 255, 255, 0.55) 0 1px, transparent 1.8px),
    radial-gradient(circle at 40% 80%, rgba(173, 223, 255, 0.7) 0 1px, transparent 1.9px);
  background-size: 180px 180px;
  animation: driftReverse 36s linear infinite;
}

.constellation {
  position: absolute;
  width: 10rem;
  height: 10rem;
  opacity: 0.6;
  pointer-events: none;
}

.constellation-left {
  top: 3rem;
  left: 1rem;
}

.constellation-right {
  right: 2rem;
  bottom: 2rem;
}

.constellation .line {
  position: absolute;
  background: linear-gradient(180deg, rgba(212, 234, 255, 0.08), rgba(212, 234, 255, 0.6), rgba(212, 234, 255, 0.08));
  box-shadow: 0 0 22px rgba(111, 187, 255, 0.18);
}

.constellation .vertical {
  left: 50%;
  top: 1rem;
  width: 1px;
  height: 7rem;
}

.constellation .horizontal {
  left: 2.4rem;
  top: 3.7rem;
  width: 5.2rem;
  height: 1px;
}

.constellation .star {
  position: absolute;
  width: 0.44rem;
  height: 0.44rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 255, 255, 1) 0 35%, rgba(177, 220, 255, 0.7) 36%, transparent 100%);
  filter: drop-shadow(0 0 10px rgba(113, 189, 255, 0.62));
}

.constellation .star-a {
  top: 0.8rem;
  left: calc(50% - 0.22rem);
}

.constellation .star-b {
  top: 3.48rem;
  left: 2.12rem;
}

.constellation .star-c {
  top: 3.48rem;
  left: 7.18rem;
}

.constellation .star-d {
  top: 7.55rem;
  left: calc(50% - 0.22rem);
}

.hero-copy,
.hero-visual {
  padding: 0 1.2rem;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0;
}

.eyebrow,
.section-kicker,
.panel-label {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1rem;
  color: #cbe0f8;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-intro,
.purchase-intro {
  font-size: 1.08rem;
  letter-spacing: 0.24em;
  color: #8fd0ff;
  text-shadow: 0 0 18px rgba(101, 183, 255, 0.2);
}

.eyebrow::before,
.section-kicker::before,
.panel-label::before {
  content: "";
  display: inline-block;
  width: 2.8rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(218, 231, 255, 0.86));
}

.hero-intro::before,
.purchase-intro::before {
  width: 4rem;
  background: linear-gradient(90deg, transparent, rgba(143, 208, 255, 0.95));
}

.hero h1,
.section h2 {
  margin: 0;
  font-family: "Cinzel", serif;
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2.9rem, 6vw, 5.5rem);
  max-width: 10ch;
}

.hero .lede,
.section-heading p,
.proof-copy p,
.purchase-copy p {
  margin: 1.2rem 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.hero-actions,
.purchase-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.purchase-intro {
  margin-top: 1.5rem;
  justify-content: center;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.03rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.45rem;
  padding: 0.9rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, #edf4ff, #b9dfff 46%, #73bcff);
  color: #03101d;
  box-shadow: 0 20px 50px rgba(83, 159, 255, 0.28);
}

.button-secondary {
  border-color: rgba(192, 220, 255, 0.26);
  background: rgba(9, 25, 42, 0.58);
  color: var(--text);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(222, 236, 255, 0.46);
  background: rgba(11, 31, 53, 0.8);
}

.hero-facts {
  display: grid;
  gap: 0.9rem;
  margin: 2.2rem 0 0;
  padding: 0;
  list-style: none;
}

.hero-facts li {
  position: relative;
  padding-left: 1.8rem;
  color: #d5e5f6;
  line-height: 1.7;
}

.hero-facts li::before {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 0.7rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 255, 255, 1) 0 24%, rgba(123, 193, 255, 0.78) 25%, transparent 75%);
}

.cover-frame {
  position: relative;
  width: min(100%, 360px);
  margin-left: 0;
  transform: translateY(-1.15rem);
  border-radius: calc(var(--radius-lg) + 6px);
  padding: 1rem;
  border: 1px solid rgba(198, 226, 255, 0.15);
  background: linear-gradient(180deg, rgba(10, 25, 43, 0.9), rgba(7, 17, 30, 0.82));
  box-shadow: var(--shadow);
}

.cover-frame img {
  position: relative;
  z-index: 1;
  border-radius: calc(var(--radius-md) + 2px);
  width: 100%;
}

.cover-glow {
  position: absolute;
  inset: 14% 22%;
  z-index: 0;
  border-radius: 999px;
  background:
    radial-gradient(circle, rgba(245, 250, 255, 0.8), rgba(106, 185, 255, 0.28) 38%, transparent 72%);
  filter: blur(28px);
}

.floating-panel,
.purchase-panel,
.editorial-card,
.quote-card,
.question-card,
.approach-card {
  border: 1px solid rgba(190, 221, 255, 0.12);
  background: linear-gradient(180deg, rgba(9, 24, 42, 0.86), rgba(5, 14, 25, 0.72));
  box-shadow: var(--shadow);
}

.floating-panel {
  width: min(100%, 19rem);
  margin-top: -0.2rem;
  margin-right: 0;
  margin-left: 0;
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(14px);
}

.floating-panel strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1.2rem;
  line-height: 1.45;
}

.floating-panel span {
  display: block;
  margin-top: 0.75rem;
  color: var(--muted);
}

.section {
  padding: 5.5rem 0 0;
}

.section-heading {
  max-width: 46rem;
}

.card-grid,
.approach-grid,
.editorial-grid,
.quote-grid {
  display: grid;
  gap: 1.35rem;
  margin-top: 2.2rem;
}

.card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.question-card,
.approach-card,
.editorial-card,
.quote-card,
.purchase-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.question-card::before,
.approach-card::before,
.editorial-card::before,
.quote-card::before,
.purchase-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent 45%),
    radial-gradient(circle at top right, rgba(100, 183, 255, 0.18), transparent 28%);
  pointer-events: none;
}

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 999px;
  margin-bottom: 1.2rem;
  font-weight: 800;
  color: #03101d;
  background: linear-gradient(135deg, #eff5ff, #8dd0ff);
}

.question-card h3,
.approach-card h3,
.purchase-panel li,
.editorial-quote,
.quote-chip {
  position: relative;
  z-index: 1;
}

.question-card h3,
.approach-card h3 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.45;
}

.question-card p,
.approach-card p,
.editorial-source,
.quote-note,
.proof-copy p,
.purchase-panel ul {
  position: relative;
  z-index: 1;
  color: var(--muted);
  line-height: 1.8;
}

.approach-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.proof {
  position: relative;
}

.proof::before {
  content: "";
  position: absolute;
  inset: 5rem -4% -2rem;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 35%, rgba(93, 165, 255, 0.08), transparent 22%),
    radial-gradient(circle at 78% 20%, rgba(93, 165, 255, 0.08), transparent 18%);
  pointer-events: none;
}

.editorial-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.editorial-card,
.quote-card {
  min-height: 100%;
}

.review-stars {
  position: relative;
  z-index: 1;
  color: #79c1ff;
  font-size: 1.1rem;
  letter-spacing: 0.22em;
}

.editorial-quote {
  margin: 0;
  margin-top: 1.3rem;
  font-size: 1.28rem;
  line-height: 1.8;
  color: #ecf4ff;
}

.editorial-source {
  margin: 1.5rem 0 0;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.quote-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.quote-chip {
  margin: 0;
  font-family: "Cinzel", serif;
  font-size: 1.45rem;
  line-height: 1.5;
}

.quote-note {
  margin: 0.8rem 0 0;
}

.purchase {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: 1.5rem 2rem;
  align-items: center;
  padding-bottom: 5rem;
}

.purchase-panel ul {
  display: grid;
  gap: 0.95rem;
  margin: 1.1rem 0 0;
  padding-left: 1.2rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0 2rem;
  color: #93a7c0;
  font-size: 0.94rem;
  border-top: 1px solid rgba(174, 214, 255, 0.1);
}

.sample-page .site-header,
.sample-page .section,
.sample-page .site-footer,
.sample-page .sample-hero,
.sample-page .chapter-layout {
  width: min(calc(100% - 2rem), 1040px);
  margin: 0 auto;
}

.sample-page .sample-hero {
  position: relative;
  margin-top: 2rem;
  padding: clamp(3rem, 5vw, 4.5rem);
  border: 1px solid rgba(175, 214, 255, 0.08);
  border-radius: calc(var(--radius-lg) + 10px);
  background: linear-gradient(135deg, rgba(9, 24, 42, 0.7), rgba(6, 16, 28, 0.42));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.sample-page .sample-hero::before {
  content: "";
  position: absolute;
  inset: -10% 18% auto;
  height: 18rem;
  background:
    radial-gradient(ellipse at center, rgba(234, 245, 255, 0.18) 0, rgba(149, 203, 255, 0.08) 28%, transparent 74%);
  filter: blur(34px);
  pointer-events: none;
}

.sample-page .sample-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 290px);
  gap: 2rem;
  align-items: start;
}

.sample-page .sample-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #9dcbf1;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.sample-page .sample-back:hover,
.sample-page .sample-back:focus-visible {
  color: var(--silver);
}

.sample-page .sample-title {
  margin-top: 1.1rem;
}

.sample-page .sample-subtitle {
  margin-top: 1rem;
  max-width: 60ch;
  color: var(--muted);
  line-height: 1.85;
}

.sample-page .sample-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.8rem;
}

.sample-page .sample-cover {
  justify-self: center;
  width: min(100%, 250px);
  padding: 0.85rem;
  border-radius: calc(var(--radius-md) + 4px);
  border: 1px solid rgba(198, 226, 255, 0.15);
  background: linear-gradient(180deg, rgba(10, 25, 43, 0.9), rgba(7, 17, 30, 0.82));
  box-shadow: var(--shadow);
}

.sample-page .sample-cover img {
  border-radius: calc(var(--radius-md) - 2px);
}

.sample-page .chapter-layout {
  padding: 3rem 0 4rem;
}

.sample-page .chapter-body {
  padding: clamp(1.4rem, 3vw, 2.3rem);
  border-radius: calc(var(--radius-lg) + 4px);
  border: 1px solid rgba(175, 214, 255, 0.08);
  background: linear-gradient(180deg, rgba(8, 20, 34, 0.92), rgba(5, 12, 22, 0.88));
  box-shadow: var(--shadow);
}

.sample-page .chapter-header {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(174, 214, 255, 0.1);
  margin-bottom: 1.6rem;
}

.sample-page .chapter-number {
  margin: 0;
  color: #8fd0ff;
  font-weight: 800;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 0.88rem;
}

.sample-page .chapter-name {
  margin-top: 0.75rem;
}

.sample-page .chapter-text p,
.sample-page .chapter-text li,
.sample-page .footnotes-list li {
  color: #d7e7f7;
  line-height: 1.95;
  font-size: 1.03rem;
}

.sample-page .chapter-text p {
  margin: 0 0 1.2rem;
}

.sample-page .chapter-quote {
  margin: 1.7rem 0;
  padding: 1.2rem 1.35rem;
  border-left: 2px solid rgba(133, 202, 255, 0.46);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(10, 25, 43, 0.46);
  color: #ecf4ff;
  font-family: "Cinzel", serif;
  font-size: 1.12rem;
  line-height: 1.75;
}

.sample-page .chapter-list {
  position: relative;
  padding-left: 1.5rem;
}

.sample-page .chapter-list::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.85rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 255, 255, 1) 0 24%, rgba(123, 193, 255, 0.78) 25%, transparent 75%);
}

.sample-page .chapter-cta {
  margin: 2.2rem 0;
  padding: 1.45rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(190, 221, 255, 0.12);
  background: linear-gradient(180deg, rgba(9, 24, 42, 0.88), rgba(5, 14, 25, 0.78));
  box-shadow: var(--shadow);
  text-align: center;
}

.sample-page .chapter-cta p {
  margin: 0 0 1rem;
  color: #e9f3ff;
  font-family: "Cinzel", serif;
  font-size: 1.2rem;
  line-height: 1.6;
}

.sample-page .chapter-cta .button {
  min-width: min(100%, 16rem);
}

.sample-page sup a {
  color: #8fd0ff;
  text-decoration: none;
  font-weight: 700;
}

.sample-page .footnotes {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(174, 214, 255, 0.1);
}

.sample-page .footnotes-list {
  margin: 1.2rem 0 0;
  padding-left: 1.2rem;
}

.sample-page .footnotes-list li {
  margin-bottom: 1rem;
}

.sample-page .footnotes-list a {
  color: #8fd0ff;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(-60px, 26px, 0);
  }
}

@keyframes driftReverse {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(55px, -35px, 0);
  }
}

@media (max-width: 980px) {
  .site-header {
    border-radius: 28px;
  }

  .js .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
  }

  .js .site-nav {
    position: absolute;
    top: calc(100% + 0.9rem);
    right: 0;
    left: 0;
    display: grid;
    gap: 0.6rem;
    padding: 1rem;
    border: 1px solid rgba(174, 214, 255, 0.12);
    border-radius: 1.4rem;
    background: rgba(5, 14, 25, 0.96);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition:
      opacity 180ms ease,
      transform 180ms ease;
  }

  .js .site-header.nav-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .hero,
  .proof,
  .purchase {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-visual {
    padding: 0 1rem;
  }

  .hero-visual {
    display: grid;
    justify-items: center;
    padding-top: 0;
  }

  .cover-frame {
    margin-left: 0;
    transform: translateY(0);
  }

  .floating-panel {
    margin-top: -1.4rem;
    margin-right: 0;
    width: min(100%, 20rem);
  }

  .editorial-grid,
  .quote-grid,
  .card-grid,
  .approach-grid {
    grid-template-columns: 1fr;
  }

  .sample-page .sample-hero-inner {
    grid-template-columns: 1fr;
  }

  .sample-page .sample-cover {
    order: -1;
  }

  .constellation-right {
    right: 0.4rem;
  }
}

@media (max-width: 720px) {
  .site-header,
  .section,
  .site-footer,
  .hero {
    width: min(calc(100% - 1.2rem), var(--max-width));
  }

  .site-header {
    padding: 0.9rem 1rem;
    margin-top: 0.6rem;
  }

  .brand-text strong {
    font-size: 0.9rem;
  }

  .brand-text span {
    font-size: 0.76rem;
  }

  .hero {
    padding-top: 3rem;
    padding-bottom: 2.8rem;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-copy,
  .hero-visual {
    padding: 0 0.5rem;
  }

  .hero-actions,
  .purchase-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
    padding-bottom: 1.6rem;
  }

  .constellation {
    display: none;
  }

  .sample-page .site-header,
  .sample-page .section,
  .sample-page .site-footer,
  .sample-page .sample-hero,
  .sample-page .chapter-layout {
    width: min(calc(100% - 1.2rem), 1040px);
  }

  .sample-page .sample-hero {
    padding: 2rem 1.2rem;
  }

  .sample-page .sample-actions {
    flex-direction: column;
  }

  .sample-page .sample-actions .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}