:root {
  --color-ink: #111112;
  --color-muted: #5f5b56;
  --color-soft: #f7f6f3;
  --color-line: #ded8cf;
  --color-gold: #b8946b;
  --color-gold-dark: #8c6a45;
  --color-plum: #4b3036;
  --color-sage: #6f7d6a;
  --color-white: #ffffff;
  --shadow-soft: 0 24px 80px rgba(17, 17, 18, 0.12);
  --radius: 8px;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-white);
  color: var(--color-ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
}

body.is-menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 100;
  transform: translateY(-150%);
  background: var(--color-ink);
  color: var(--color-white);
  padding: 10px 14px;
  text-decoration: none;
  border-radius: var(--radius);
}

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

.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;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  gap: 28px;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 56px);
  color: var(--color-white);
  transition: background 180ms ease, box-shadow 180ms ease, min-height 180ms ease;
}

.site-header.is-scrolled {
  min-height: 66px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-ink);
  box-shadow: 0 1px 0 rgba(17, 17, 18, 0.08);
  backdrop-filter: blur(16px);
}

.site-header.is-menu-open {
  background: rgba(17, 17, 18, 0.98);
  color: var(--color-white);
}

.brand-mark {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  width: 220px;
  text-decoration: none;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.site-header:not(.is-scrolled) .brand-mark {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.brand-logo {
  height: auto;
}

.brand-logo-light {
  width: 210px;
}

.brand-logo-dark {
  display: none;
  width: 210px;
}

.site-header.is-scrolled .brand-logo-light {
  display: none;
}

.site-header.is-scrolled .brand-logo-dark {
  display: block;
}

.site-header.is-menu-open .brand-logo-light {
  display: block;
}

.site-header.is-menu-open .brand-logo-dark {
  display: none;
}

.main-nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.83rem;
  font-weight: 650;
  text-transform: uppercase;
}

.site-header.is-scrolled .main-nav {
  color: var(--color-muted);
}

.main-nav a,
.header-cta {
  text-decoration: none;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 3px;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
  white-space: nowrap;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-white);
}

.site-header:not(.is-scrolled) .header-cta:hover,
.site-header:not(.is-scrolled) .header-cta:focus-visible {
  background: var(--color-white);
  border-color: var(--color-white);
  color: var(--color-ink);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
  transform-origin: center;
  transition: transform 180ms ease, opacity 180ms ease;
}

.site-header.is-menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header.is-menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  align-content: center;
  justify-items: center;
  gap: clamp(14px, 2.4vw, 22px);
  overflow: hidden;
  padding: 104px clamp(20px, 5vw, 72px) 76px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    var(--color-ink);
  background-size: 96px 100%;
}

.hero-dark {
  background-color: var(--color-ink);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  left: clamp(20px, 5vw, 72px);
  right: clamp(20px, 5vw, 72px);
  height: 1px;
  background: rgba(255, 255, 255, 0.18);
}

.hero::before {
  top: 96px;
}

.hero::after {
  bottom: 42px;
}

.hero-logo {
  position: relative;
  z-index: 1;
  width: min(360px, 58vw);
}

.hero-logo img {
  width: 100%;
  height: auto;
}

.hero-copy {
  position: relative;
  z-index: 1;
  width: min(820px, 100%);
  text-align: center;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--color-gold-dark);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(5rem, 14vw, 12rem);
  font-weight: 400;
  line-height: 0.84;
  letter-spacing: 0;
}

.hero-subtitle {
  margin: 0 auto;
  color: var(--color-white);
  font-size: clamp(1.15rem, 2.1vw, 1.62rem);
  font-weight: 700;
}

.hero-text {
  width: min(720px, 100%);
  margin: 16px auto 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

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

.button-primary {
  border: 1px solid var(--color-ink);
  background: var(--color-ink);
  color: var(--color-white);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-plum);
  border-color: var(--color-plum);
}

.button-secondary {
  border: 1px solid var(--color-gold);
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-ink);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--color-gold);
  color: var(--color-white);
}

.hero-dark .button-primary {
  border-color: var(--color-white);
  background: var(--color-white);
  color: var(--color-ink);
}

.hero-dark .button-primary:hover,
.hero-dark .button-primary:focus-visible {
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-white);
}

.hero-dark .button-secondary {
  border-color: var(--color-gold);
  background: rgba(255, 255, 255, 0.02);
  color: var(--color-white);
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 18px;
  z-index: 2;
  width: 28px;
  height: 28px;
  transform: translateX(-50%);
}

.scroll-cue span {
  display: block;
  width: 12px;
  height: 12px;
  margin: 5px auto 0;
  border-right: 1px solid rgba(255, 255, 255, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.76);
  transform: rotate(45deg);
  animation: cue 1500ms ease-in-out infinite;
}

@keyframes cue {
  0%, 100% { transform: translateY(0) rotate(45deg); }
  50% { transform: translateY(5px) rotate(45deg); }
}

.intro-section,
.product-section,
.vision-section,
.audience-section,
.contact-section {
  padding: clamp(78px, 11vw, 150px) clamp(20px, 5vw, 72px);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(280px, 1fr);
  gap: clamp(36px, 7vw, 92px);
  align-items: start;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.intro-section .section-kicker,
.vision-section .section-kicker {
  width: min(1180px, 100%);
  margin-inline: auto;
}

h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.35rem, 5vw, 5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.25;
}

.section-copy p,
.product-copy p,
.contact-inner p {
  margin: 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 1.55vw, 1.12rem);
}

.section-copy {
  display: grid;
  gap: 18px;
}

.product-section {
  background: var(--color-soft);
}

.product-copy {
  width: min(820px, 100%);
  margin: 0 auto clamp(42px, 6vw, 70px);
  text-align: center;
}

.product-copy p {
  margin-top: 22px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(1180px, 100%);
  margin: 0 auto;
  background: var(--color-line);
  box-shadow: var(--shadow-soft);
}

.feature-item {
  min-height: 260px;
  display: grid;
  align-content: end;
  gap: 18px;
  padding: clamp(24px, 4vw, 42px);
  background: var(--color-white);
}

.feature-item span {
  color: var(--color-sage);
  font-family: var(--serif);
  font-size: 2rem;
}

.feature-item p,
.method-steps p,
.audience-list p {
  margin: 0;
  color: var(--color-muted);
}

.dark-section {
  position: relative;
  overflow: hidden;
  min-height: 680px;
  display: grid;
  align-items: center;
  padding: clamp(80px, 12vw, 150px) clamp(20px, 5vw, 72px);
  background: var(--color-ink);
  color: var(--color-white);
}

.dark-logo {
  position: absolute;
  inset: -8% -10% auto auto;
  width: min(760px, 80vw);
  opacity: 0.11;
  pointer-events: none;
}

.method-content {
  position: relative;
  z-index: 1;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.method-content h2 {
  max-width: 780px;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(980px, 100%);
  margin-top: clamp(44px, 7vw, 84px);
  background: rgba(255, 255, 255, 0.18);
}

.method-steps article {
  min-height: 210px;
  display: grid;
  align-content: end;
  gap: 14px;
  padding: clamp(24px, 3vw, 34px);
  background: #181819;
}

.method-steps p {
  color: rgba(255, 255, 255, 0.68);
}

.vision-section {
  background: var(--color-white);
}

.quote-block {
  width: min(1040px, 100%);
  margin: 0 auto;
}

blockquote {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 5.6vw, 5.8rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.quote-block p {
  margin: 28px 0 0;
  color: var(--color-gold-dark);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

.audience-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.92fr) minmax(280px, 1fr);
  gap: clamp(36px, 7vw, 86px);
  align-items: start;
  background: #f2f4ef;
}

.audience-heading,
.audience-list {
  width: min(560px, 100%);
}

.audience-heading {
  justify-self: end;
}

.audience-list {
  display: grid;
  gap: 1px;
  background: rgba(17, 17, 18, 0.12);
}

.audience-list p {
  min-height: 96px;
  display: flex;
  align-items: center;
  padding: 24px;
  background: #f8f9f5;
  color: var(--color-ink);
  font-weight: 700;
}

.contact-section {
  background: var(--color-ink);
  color: var(--color-white);
}

.contact-inner {
  width: min(760px, 100%);
  margin: 0 auto;
  text-align: center;
}

.contact-inner p {
  margin: 24px auto 32px;
  color: rgba(255, 255, 255, 0.7);
}

.contact-section .button-primary {
  background: var(--color-white);
  color: var(--color-ink);
  border-color: var(--color-white);
}

.contact-section .button-primary:hover,
.contact-section .button-primary:focus-visible {
  background: var(--color-gold);
  color: var(--color-white);
  border-color: var(--color-gold);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(20px, 5vw, 72px);
  background: var(--color-white);
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer img {
  width: 116px;
}

.site-footer p {
  margin: 0;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

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

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: auto auto;
    justify-content: space-between;
    gap: 16px;
  }

  .menu-toggle {
    display: inline-flex;
    justify-self: end;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    left: 16px;
    right: 16px;
    display: grid;
    gap: 0;
    padding: 12px;
    background: rgba(17, 17, 18, 0.98);
    color: var(--color-white);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .site-header.is-menu-open .main-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .main-nav a {
    min-height: 54px;
    display: flex;
    align-items: center;
    padding: 0 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .main-nav a:last-child {
    border-bottom: 0;
  }

  .brand-mark,
  .brand-logo-dark {
    width: 172px;
  }

  .brand-logo-light {
    width: 172px;
  }

  .header-cta {
    display: none;
  }

  .hero {
    min-height: 94vh;
    padding-top: 96px;
  }

  .hero-logo {
    width: min(320px, 68vw);
  }

  .intro-grid,
  .audience-section {
    grid-template-columns: 1fr;
  }

  .audience-heading {
    justify-self: start;
  }

  .feature-list,
  .method-steps {
    grid-template-columns: 1fr;
  }

  .feature-item,
  .method-steps article {
    min-height: 190px;
  }

  .dark-section {
    min-height: auto;
  }

  .dark-logo {
    width: 110vw;
    inset: -4% -36% auto auto;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 68px;
    padding: 12px 16px;
  }

  .site-header.is-scrolled {
    min-height: 60px;
  }

  .main-nav {
    top: 62px;
    left: 12px;
    right: 12px;
  }

  .menu-toggle {
    width: 40px;
    height: 40px;
  }

  .hero {
    min-height: 92vh;
    gap: 18px;
    padding: 96px 18px 66px;
    background-size: 64px 100%;
  }

  .hero-logo {
    width: min(260px, 74vw);
  }

  .hero-text {
    margin-top: 16px;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .hero::before {
    top: 82px;
  }

  .hero::after {
    bottom: 38px;
  }

  .hero h1 {
    font-size: clamp(4.4rem, 23vw, 7rem);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .intro-section,
  .product-section,
  .vision-section,
  .audience-section,
  .contact-section,
  .dark-section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 26px 18px;
  }
}

@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;
  }
}