:root {
  --navy-950: #041923;
  --navy-900: #062536;
  --navy-800: #0a3344;
  --teal-700: #0d6f76;
  --teal-600: #15838a;
  --teal-100: #d9f0ee;
  --cyan-300: #79d8dc;
  --steel-200: #d8e0e0;
  --steel-500: #758789;
  --ivory-50: #fbfaf6;
  --warm-100: #f2efe7;
  --stone-200: #dedbd2;
  --stone-500: #716f68;
  --stone-700: #3b3a36;
  --white: #ffffff;
  --gold-300: #d8c591;
  --shadow-soft: 0 22px 55px rgba(4, 25, 35, 0.11);
  --shadow-card: 0 14px 35px rgba(4, 25, 35, 0.08);
  --shadow-deep: 0 34px 90px rgba(4, 25, 35, 0.2);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 8px;
  --container: 1160px;
  --scroll-progress: 0;
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  overflow-x: hidden;
  scroll-padding-top: 88px;
  scroll-behavior: smooth;
}

::selection {
  background: rgba(121, 216, 220, 0.28);
  color: var(--navy-950);
}

body {
  width: 100%;
  overflow-x: hidden;
  margin: 0;
  background:
    linear-gradient(90deg, rgba(6, 37, 54, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(6, 37, 54, 0.03) 1px, transparent 1px),
    var(--ivory-50);
  background-size: 72px 72px;
  color: var(--stone-700);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

main,
section,
.container {
  min-width: 0;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.76), transparent 34%),
    linear-gradient(245deg, rgba(13, 111, 118, 0.08), transparent 42%);
  content: "";
  pointer-events: none;
}

body.modal-open {
  overflow: hidden;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--cyan-300);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 200;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy-900);
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 120;
  height: 3px;
  background: transparent;
}

.scroll-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan-300), var(--gold-300), var(--cyan-300));
  box-shadow: 0 0 18px rgba(121, 216, 220, 0.42);
  transform: scaleX(var(--scroll-progress));
  transform-origin: left center;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(4, 25, 35, 0.92);
  color: var(--white);
  backdrop-filter: blur(14px);
  transition:
    background-color 260ms var(--ease-out),
    box-shadow 260ms var(--ease-out),
    border-color 260ms var(--ease-out);
}

.site-header.is-scrolled {
  border-bottom-color: rgba(121, 216, 220, 0.14);
  background: rgba(4, 25, 35, 0.82);
  box-shadow: 0 18px 44px rgba(4, 25, 35, 0.18);
}

.nav {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  min-height: 44px;
}

.brand-mark {
  display: grid;
  position: relative;
  flex: 0 0 46px;
  width: 46px;
  min-width: 46px;
  max-width: 46px;
  height: 46px;
  min-height: 46px;
  max-height: 46px;
  place-items: center;
  border: 1px solid rgba(121, 216, 220, 0.46);
  border-radius: 50%;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.88)),
    var(--white);
  box-shadow: 0 0 0 6px rgba(121, 216, 220, 0.04);
  contain: layout paint size;
  overflow: hidden;
}

.brand-mark-image {
  position: absolute;
  inset: 12%;
  display: block;
  width: 76%;
  max-width: 76%;
  height: 76%;
  max-height: 76%;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
  overflow-wrap: anywhere;
}

.brand strong {
  line-height: 1.1;
}

.brand small {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.88rem;
}

.nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  position: relative;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: 8px;
  left: 0;
  height: 1px;
  background: var(--cyan-300);
  content: "";
  opacity: 0;
  transform: scaleX(0);
  transform-origin: center;
  transition:
    opacity 180ms ease,
    transform 220ms var(--ease-out);
}

.nav-links a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.section {
  padding: 96px 0;
}

.section-muted {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0)),
    var(--warm-100);
}

.section-dark {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(135deg, var(--navy-950), var(--navy-900) 58%, var(--navy-800));
  background-size: 92px 92px, 92px 92px, auto;
  color: var(--white);
}

.soft-dark {
  background:
    linear-gradient(135deg, rgba(6, 37, 54, 0.96), rgba(13, 111, 118, 0.9)),
    var(--navy-900);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100dvh - 72px);
  padding: 104px 0 88px;
  isolation: isolate;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(121, 216, 220, 0.5), transparent);
  content: "";
}

.hero::before {
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  content: "";
  pointer-events: none;
}

.hero-ambient {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.hero-ambient::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.09), transparent 28%),
    linear-gradient(245deg, rgba(121, 216, 220, 0.16), transparent 42%),
    linear-gradient(180deg, transparent 0%, rgba(4, 25, 35, 0.38) 100%);
  content: "";
}

.ambient-line {
  position: absolute;
  width: 1px;
  height: 130%;
  background: linear-gradient(180deg, transparent, rgba(121, 216, 220, 0.44), transparent);
  opacity: 0.7;
  transform: rotate(18deg);
}

.line-one {
  left: 12%;
  top: -18%;
}

.line-two {
  right: 26%;
  top: -12%;
  opacity: 0.32;
}

.ambient-pane {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.01));
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.12);
  transform: rotate(-8deg);
}

.pane-one {
  right: -60px;
  top: 15%;
  width: 280px;
  height: 420px;
}

.pane-two {
  left: 48%;
  bottom: -120px;
  width: 520px;
  height: 180px;
  opacity: 0.6;
}

.hero-grid,
.two-column,
.included-grid,
.author-grid,
.offer-grid,
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 64px;
  align-items: center;
}

.hero-grid {
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow,
.section-label {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  border: 1px solid rgba(13, 111, 118, 0.18);
  border-radius: 999px;
  background: rgba(13, 111, 118, 0.08);
  color: var(--teal-700);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.2;
  padding: 9px 12px;
  text-transform: uppercase;
}

.eyebrow,
.section-label.inverted {
  border-color: rgba(121, 216, 220, 0.28);
  background: rgba(121, 216, 220, 0.1);
  color: var(--cyan-300);
}

h1,
h2,
h3,
p,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--navy-950);
  font-family:
    "Source Serif 4", Georgia, "Times New Roman", serif;
  letter-spacing: 0;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.section-dark h1,
.section-dark h2,
.section-dark h3 {
  color: var(--white);
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(2.9rem, 6.2vw, 5.35rem);
  text-wrap: balance;
}

.headline-mobile,
.subtitle-mobile {
  display: none;
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.24rem;
}

.hero-subtitle,
.section-copy p,
.section-heading p {
  color: rgba(255, 255, 255, 0.79);
  font-size: 1.12rem;
}

.hero-product {
  max-width: 700px;
  margin: -4px 0 0;
  border-left: 3px solid var(--cyan-300);
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.08rem;
  line-height: 1.55;
  padding-left: 18px;
}

.hero-product strong {
  color: var(--cyan-300);
  font-weight: 900;
}

.section-copy p,
.section-heading p {
  color: var(--stone-500);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 34px 0 14px;
}

.button {
  display: inline-flex;
  position: relative;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 800;
  line-height: 1.2;
  overflow: hidden;
  overflow-wrap: anywhere;
  padding: 14px 20px;
  text-align: center;
  white-space: normal;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

.button::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.38), transparent 80%);
  content: "";
  transform: translateX(-120%);
  transition: transform 640ms var(--ease-out);
}

.button:hover::before {
  transform: translateX(120%);
}

.button > * {
  position: relative;
}

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

.button-primary {
  background: var(--cyan-300);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.62) inset,
    0 16px 36px rgba(121, 216, 220, 0.26);
  color: var(--navy-950);
}

.button-primary:hover {
  background: #8ee6e8;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.button-outline {
  border-color: rgba(13, 111, 118, 0.22);
  background: transparent;
  color: var(--teal-700);
}

.site-header .button-outline {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--white);
}

.button-small {
  min-height: 42px;
  padding: 10px 16px;
}

.button.full {
  width: 100%;
}

.microcopy {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.67);
  font-size: 0.92rem;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, 700px);
  margin-top: 30px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.05)),
    rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(16px);
}

.hero-proof span {
  display: flex;
  min-height: 78px;
  flex-direction: column;
  justify-content: center;
  background: rgba(4, 25, 35, 0.34);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.86rem;
  line-height: 1.25;
  padding: 16px;
}

.hero-proof strong {
  color: var(--white);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.45rem;
  line-height: 1;
}

.microcopy.dark {
  color: rgba(255, 255, 255, 0.72);
  margin: 14px 0 0;
}

.hero-visual {
  display: flex;
  justify-content: center;
  min-width: 0;
}

@media (min-width: 981px) {
  .hero .container {
    width: min(calc(100% - 72px), 1360px);
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
    gap: 72px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero h1 {
    max-width: 720px;
    font-size: clamp(3.2rem, 4.8vw, 5.1rem);
    line-height: 0.98;
  }

  .hero-subtitle {
    max-width: 690px;
  }
}

.kit-card {
  position: relative;
  width: min(100%, 450px);
  min-height: 560px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.06);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 36px 95px rgba(0, 0, 0, 0.26);
  padding: 36px;
  transform-style: preserve-3d;
  transition:
    transform 520ms var(--ease-out),
    box-shadow 520ms var(--ease-out);
  will-change: transform;
  max-width: 100%;
}

.kit-card::before {
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  content: "";
  pointer-events: none;
}

.kit-badge {
  position: relative;
  z-index: 2;
  width: fit-content;
  margin: 0 auto 8px;
  border: 1px solid rgba(216, 197, 145, 0.34);
  border-radius: 999px;
  background: rgba(216, 197, 145, 0.1);
  color: #efe2b2;
  font-size: 0.72rem;
  font-weight: 900;
  padding: 8px 12px;
  text-transform: uppercase;
}

.pdf-stack {
  position: relative;
  height: 360px;
  margin: 6px auto 30px;
  transform: translateZ(34px);
}

.pdf-page,
.pdf-cover {
  position: absolute;
  inset: 0;
  width: 250px;
  height: 340px;
  margin: auto;
  border-radius: 6px;
}

.pdf-page {
  background: rgba(255, 255, 255, 0.82);
}

.page-back {
  transform: rotate(-9deg) translate(-28px, 18px);
}

.page-mid {
  transform: rotate(7deg) translate(26px, 8px);
}

.pdf-cover {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(216, 197, 145, 0.16), transparent 36%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(140deg, #092b3d, #0d6f76);
  background-size: auto, 28px 28px, 28px 28px, auto;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 28px 52px rgba(0, 0, 0, 0.3);
  color: var(--white);
  padding: 28px;
  overflow: hidden;
}

.pdf-cover::before {
  position: absolute;
  inset: -40% -90%;
  background: linear-gradient(110deg, transparent 38%, rgba(255, 255, 255, 0.18), transparent 62%);
  content: "";
  transform: translateX(-30%) rotate(8deg);
  animation: cover-sheen 7s var(--ease-out) infinite;
}

.pdf-cover > * {
  position: relative;
}

.pdf-cover strong {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2.1rem;
  line-height: 1;
}

.pdf-cover span,
.pdf-cover small {
  color: rgba(255, 255, 255, 0.78);
}

.cover-kicker {
  margin-bottom: auto;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.cover-rule {
  width: 52px;
  height: 2px;
  margin: 20px 0;
  background: linear-gradient(90deg, var(--gold-300), var(--cyan-300));
}

.kit-panel {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(4, 25, 35, 0.46);
  padding: 20px;
}

.kit-panel span {
  color: var(--cyan-300);
  font-weight: 800;
}

.kit-panel ul {
  display: grid;
  gap: 6px;
  margin: 10px 0 0;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.78);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 38px;
}

.section-copy {
  max-width: 720px;
}

.section-copy p {
  margin-bottom: 18px;
}

.card-grid {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.compact {
  grid-template-columns: 1fr;
}

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

.info-card,
.dimension-card,
.step,
.ethical-card,
.quote-card,
.testimonial,
.ethical-notice,
.offer-card,
.final-panel,
.future-panel {
  border: 1px solid rgba(6, 37, 54, 0.08);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.86)),
    var(--white);
  box-shadow: var(--shadow-card);
}

.info-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.info-card::after,
.step::after,
.offer-card::after,
.ethical-notice::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(121, 216, 220, 0.1), transparent 42%, rgba(216, 197, 145, 0.08));
  content: "";
  opacity: 0;
  pointer-events: none;
  transition: opacity 260ms ease;
}

.info-card:hover {
  border-color: rgba(13, 111, 118, 0.28);
  box-shadow: var(--shadow-deep);
  transform: translateY(-3px);
}

.info-card:hover::after,
.step:hover::after,
.offer-card:hover::after,
.ethical-notice:hover::after {
  opacity: 1;
}

.info-card p:last-child {
  margin-bottom: 0;
}

.line-icon {
  display: block;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  border: 1px solid rgba(13, 111, 118, 0.22);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent 47%, var(--teal-600) 47% 53%, transparent 53%),
    linear-gradient(0deg, transparent 47%, var(--teal-600) 47% 53%, transparent 53%),
    linear-gradient(135deg, var(--teal-100), #f7f0d4);
}

.split-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  gap: 34px;
  align-items: stretch;
}

.ethical-card,
.quote-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px;
  border-left: 4px solid var(--teal-600);
}

.ethical-card strong {
  margin-bottom: 10px;
  color: var(--navy-900);
  font-size: 1.1rem;
}

.quote-card {
  background: var(--navy-900);
  color: var(--white);
}

.quote-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.42rem;
  line-height: 1.25;
}

.dimension-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.dimension-card {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
  color: rgba(255, 255, 255, 0.78);
  padding: 26px;
  transition:
    transform 220ms var(--ease-out),
    background-color 220ms ease,
    border-color 220ms ease;
}

.dimension-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(216, 197, 145, 0.65), transparent);
  content: "";
}

.dimension-card:hover {
  border-color: rgba(216, 197, 145, 0.32);
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-2px);
}

.dimension-card span {
  color: var(--cyan-300);
  font-weight: 900;
}

.dimension-card p {
  margin-bottom: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.step {
  position: relative;
  overflow: hidden;
  min-height: 250px;
  padding: 24px;
  transition:
    transform 220ms var(--ease-out),
    box-shadow 220ms ease;
}

.step:hover {
  box-shadow: var(--shadow-deep);
  transform: translateY(-3px);
}

.step span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 50%;
  background: var(--teal-100);
  color: var(--teal-700);
  font-weight: 900;
}

.step p {
  margin-bottom: 0;
}

.included-grid {
  align-items: start;
}

.checklist {
  display: grid;
  gap: 10px;
}

.check-item {
  position: relative;
  min-height: 52px;
  border: 1px solid rgba(6, 37, 54, 0.08);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 20px rgba(4, 25, 35, 0.04);
  padding: 13px 16px 13px 48px;
  overflow-wrap: anywhere;
}

.check-item::before {
  position: absolute;
  left: 18px;
  top: 16px;
  width: 10px;
  height: 16px;
  border-right: 2px solid var(--teal-700);
  border-bottom: 2px solid var(--teal-700);
  content: "";
  transform: rotate(40deg);
}

.author-grid {
  grid-template-columns: minmax(280px, 350px) minmax(0, 1fr);
  align-items: center;
  gap: 76px;
  width: min(calc(100% - 56px), 1120px);
}

.author-photo {
  margin: 0;
  position: relative;
  align-self: center;
  justify-self: center;
  width: min(100%, 350px);
  border: 1px solid rgba(6, 37, 54, 0.08);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent),
    var(--navy-950);
  box-shadow:
    0 24px 70px rgba(4, 25, 35, 0.17),
    0 1px 0 rgba(255, 255, 255, 0.18) inset;
  padding: 12px;
}

.author-photo::before {
  position: absolute;
  inset: -14px 18px 18px -14px;
  z-index: -1;
  border: 1px solid rgba(13, 111, 118, 0.18);
  border-radius: 24px;
  content: "";
}

.author-photo picture {
  display: block;
  overflow: hidden;
  border-radius: 16px;
  aspect-ratio: 1;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent),
    rgba(4, 25, 35, 0.78);
}

.author-photo img {
  position: relative;
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  border-radius: 16px;
  box-shadow: none;
  object-fit: cover;
  object-position: 50% 40%;
  transform: none;
  transform-origin: center;
}

.author-grid .section-copy {
  max-width: 720px;
}

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.contact-row a {
  min-height: 44px;
  border: 1px solid rgba(13, 111, 118, 0.18);
  border-radius: var(--radius);
  color: var(--teal-700);
  font-weight: 800;
  padding: 10px 14px;
}

.testimonial {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px;
}

blockquote {
  color: var(--navy-900);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.18;
}

.testimonial p {
  color: var(--stone-500);
  margin-bottom: 0;
}

.offer-section {
  overflow: hidden;
}

.offer-grid {
  align-items: center;
}

.offer-card {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--white);
  padding: 34px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.22);
}

.offer-kicker {
  color: var(--cyan-300);
  font-size: 0.82rem;
  font-weight: 900;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.price {
  margin-bottom: 24px;
  color: var(--white);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(3.2rem, 8vw, 5.7rem);
  font-weight: 800;
  line-height: 1;
}

.offer-list {
  display: grid;
  gap: 8px;
  margin: 0 0 28px;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.84);
}

.ethical-notice {
  position: relative;
  overflow: hidden;
  border-left: 4px solid var(--teal-600);
  padding: 38px;
}

.ethical-notice p {
  color: var(--stone-500);
}

.ethical-notice p:last-child {
  margin-bottom: 0;
}

.faq-grid {
  align-items: start;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 1fr);
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid rgba(6, 37, 54, 0.08);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 24px rgba(4, 25, 35, 0.05);
}

summary {
  min-height: 58px;
  cursor: pointer;
  color: var(--navy-900);
  font-weight: 900;
  padding: 18px 48px 18px 20px;
}

details p {
  margin: 0;
  padding: 0 20px 22px;
  color: var(--stone-500);
}

.final-cta {
  padding-bottom: 44px;
}

.final-panel {
  max-width: 930px;
  margin: 0 auto;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(135deg, var(--navy-900), var(--teal-700));
  background-size: 42px 42px, 42px 42px, auto;
  color: var(--white);
  padding: 52px;
  text-align: center;
}

.final-panel h2 {
  color: var(--white);
}

.final-panel p {
  max-width: 720px;
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, 0.78);
}

.future-section {
  padding-top: 44px;
}

.future-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 34px;
  align-items: center;
  padding: 34px;
}

.future-copy {
  max-width: 560px;
}

.future-panel h2 {
  font-size: clamp(1.65rem, 3vw, 2.5rem);
}

.future-panel p {
  color: var(--stone-500);
  margin-bottom: 24px;
}

.future-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.future-card {
  display: flex;
  min-height: 74px;
  align-items: center;
  border: 1px solid rgba(6, 37, 54, 0.08);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.46)),
    rgba(13, 111, 118, 0.04);
  color: var(--navy-900);
  font-weight: 850;
  line-height: 1.25;
  padding: 16px;
}

.footer {
  border-top: 1px solid rgba(6, 37, 54, 0.08);
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.78);
  padding: 36px 0;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 26px;
}

.footer strong {
  color: var(--white);
}

.footer p {
  max-width: 520px;
  margin: 6px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.footer-links button {
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font: inherit;
  padding: 10px 14px;
}

.modal {
  width: min(calc(100% - 32px), 680px);
  border: 0;
  border-radius: 12px;
  background: transparent;
  padding: 0;
}

.modal::backdrop {
  background: rgba(4, 25, 35, 0.72);
  backdrop-filter: blur(8px);
}

.modal-card {
  position: relative;
  border-radius: 12px;
  background: var(--ivory-50);
  box-shadow: var(--shadow-soft);
  padding: 34px;
}

.modal-card h2 {
  padding-right: 40px;
}

.modal-card p {
  color: var(--stone-500);
}

.modal-close {
  position: absolute;
  right: 18px;
  top: 18px;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(6, 37, 54, 0.12);
  border-radius: 50%;
  background: var(--white);
  color: var(--navy-900);
  cursor: pointer;
  font-size: 1.6rem;
  line-height: 1;
}

.reveal {
  opacity: 0;
  transform: translateY(28px) scale(0.985);
  transition:
    opacity 620ms var(--ease-out),
    transform 620ms var(--ease-out);
}

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

.floating-cta {
  position: fixed;
  right: 22px;
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: 60;
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(121, 216, 220, 0.26);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.07)),
    rgba(4, 25, 35, 0.88);
  box-shadow: 0 22px 54px rgba(4, 25, 35, 0.24);
  color: var(--white);
  opacity: 0;
  padding: 9px 10px 9px 18px;
  pointer-events: none;
  transform: translateY(18px) scale(0.96);
  transition:
    opacity 260ms ease,
    transform 260ms var(--ease-out);
  backdrop-filter: blur(18px);
}

.floating-cta.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.floating-cta span {
  font-size: 0.9rem;
  font-weight: 900;
}

.floating-cta strong {
  display: grid;
  min-width: 54px;
  min-height: 40px;
  place-items: center;
  border-radius: 999px;
  background: var(--cyan-300);
  color: var(--navy-950);
  font-size: 0.88rem;
}

@keyframes cover-sheen {
  0%,
  42% {
    transform: translateX(-34%) rotate(8deg);
  }

  58%,
  100% {
    transform: translateX(42%) rotate(8deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

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

  .pdf-cover::before {
    animation: none;
  }
}

@media (max-width: 980px) {
  .section {
    padding: 76px 0;
  }

  .nav-links {
    gap: 12px;
    font-size: 0.82rem;
  }

  .hero-grid,
  .two-column,
  .included-grid,
  .author-grid,
  .offer-grid,
  .faq-grid,
  .split-panel {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

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

  .hero {
    padding-top: 84px;
    min-height: auto;
  }

  .kit-card {
    min-height: 520px;
  }

  .future-panel {
    grid-template-columns: 1fr;
  }

  .ambient-pane {
    opacity: 0.38;
  }
}

@media (max-width: 720px) {
  html {
    scroll-padding-top: 74px;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .nav {
    min-height: 66px;
  }

  .nav-links,
  .site-header .button {
    display: none;
  }

  .brand small {
    font-size: 0.72rem;
  }

  .hero {
    min-height: auto;
    padding: 54px 0 68px;
  }

  .hero::before,
  .ambient-pane,
  .ambient-line {
    display: none;
  }

  h1 {
    font-size: clamp(2.15rem, 11vw, 3.25rem);
  }

  .headline-desktop,
  .subtitle-desktop {
    display: none;
  }

  .headline-mobile,
  .subtitle-mobile {
    display: inline;
  }

  h2 {
    font-size: clamp(1.78rem, 9vw, 2.55rem);
  }

  blockquote {
    font-size: clamp(1.55rem, 8vw, 2.25rem);
  }

  .hero-subtitle,
  .section-copy p {
    font-size: 1rem;
  }

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

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

  .future-grid {
    grid-template-columns: 1fr;
  }

  .hero-proof span {
    min-height: 64px;
  }

  .button,
  .contact-row a {
    width: 100%;
  }

  .kit-card {
    min-height: 492px;
    padding: 24px;
    transform: none !important;
  }

  .pdf-stack {
    height: 320px;
    width: min(100%, 246px);
  }

  .pdf-page,
  .pdf-cover {
    width: clamp(190px, 68vw, 218px);
    height: clamp(262px, 94vw, 300px);
  }

  .pdf-cover {
    padding: 22px;
  }

  .pdf-cover strong {
    font-size: 1.75rem;
  }

  .three-cols,
  .dimension-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .author-photo::before {
    display: none;
  }

  .author-photo {
    width: 100%;
    border: 0;
    background: transparent;
    box-shadow: none;
    padding: 0;
  }

  .author-photo picture {
    overflow: visible;
    aspect-ratio: auto;
    background: transparent;
  }

  .author-photo img {
    height: auto;
    aspect-ratio: 1;
    object-position: center;
    transform: none;
  }

  .step {
    min-height: auto;
  }

  .testimonial,
  .ethical-notice,
  .final-panel,
  .future-panel,
  .offer-card {
    padding: 24px;
  }

  .price {
    font-size: clamp(3rem, 18vw, 4.6rem);
  }

  .footer-grid {
    flex-direction: column;
  }

  .footer {
    padding-bottom: calc(108px + env(safe-area-inset-bottom));
  }

  .footer-links {
    justify-content: flex-start;
  }

  .floating-cta {
    right: 14px;
    bottom: max(14px, env(safe-area-inset-bottom));
    left: 14px;
    justify-content: space-between;
  }
}

@media (max-width: 360px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .brand {
    gap: 10px;
  }

  .brand-mark {
    flex-basis: 38px;
    width: 38px;
    min-width: 38px;
    max-width: 38px;
    height: 38px;
    min-height: 38px;
    max-height: 38px;
    box-shadow: none;
  }

  .kit-card {
    padding: 18px;
  }

  .hero-proof span,
  .info-card,
  .dimension-card,
  .step {
    padding: 20px;
  }

  .contact-row a,
  .button {
    padding-right: 14px;
    padding-left: 14px;
  }
}

@media (max-width: 720px) {
  .card-grid.reveal,
  .dimension-grid.reveal,
  .steps.reveal,
  .checklist.reveal,
  .faq-list.reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .mobile-stagger-item {
    opacity: 0;
    filter: blur(4px);
    transform: translate3d(0, 18px, 0) scale(0.985);
    transition:
      opacity 520ms var(--ease-out),
      filter 520ms var(--ease-out),
      transform 520ms var(--ease-out);
    transition-delay: var(--stagger-delay, 0ms);
    will-change: opacity, filter, transform;
  }

  .mobile-stagger-item.is-visible {
    opacity: 1;
    filter: blur(0);
    transform: translate3d(0, 0, 0) scale(1);
  }
}