:root {
  color-scheme: dark;
  --ink: #f0f6f7;
  --muted: #a8b7bc;
  --subtle: #758a91;
  --night: #071218;
  --deep: #092331;
  --ice: #91e3ed;
  --ice-bright: #d6fbff;
  --amber: #cb7c43;
  --berry: #8a365c;
  --line: rgba(175, 229, 235, 0.17);
  --page: min(92vw, 90rem);
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 28%, rgba(26, 104, 130, 0.18), transparent 36rem),
    linear-gradient(180deg, #061116 0%, #071218 55%, #08161c 100%);
  min-width: 20rem;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  background: var(--ice-bright);
  color: var(--night);
  transform: translateY(-180%);
}

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

.site-header,
.site-footer {
  width: var(--page);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-header {
  position: relative;
  z-index: 10;
  min-height: 5.5rem;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  letter-spacing: -0.035em;
  text-decoration: none;
}

nav { display: flex; gap: clamp(1rem, 2.4vw, 2.4rem); }

nav a {
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible { color: var(--ice-bright); }

a:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 5px;
}

.hero {
  position: relative;
  width: var(--page);
  min-height: calc(100svh - 5.5rem);
  margin-inline: auto;
  display: grid;
  align-content: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(48rem, 67vw);
  padding: clamp(5rem, 12vh, 9rem) 0;
}

.eyebrow {
  margin: 0 0 1.4rem;
  color: var(--ice);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

h1 {
  max-width: 14ch;
  font-size: clamp(3.2rem, 7.2vw, 7.3rem);
  line-height: 0.91;
}

h1 span { color: #bcd7db; }

.hero-intro {
  max-width: 43rem;
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.1rem, 1.7vw, 1.4rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 2.4rem;
}

.primary-action,
.text-action {
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.primary-action {
  padding: 0.9rem 1.1rem;
  border: 1px solid rgba(145, 227, 237, 0.48);
  background: rgba(145, 227, 237, 0.08);
}

.primary-action:hover { background: rgba(145, 227, 237, 0.15); }

.text-action { color: var(--muted); }

.hero-art {
  position: absolute;
  z-index: -1;
  inset: 0 -7vw 0 36%;
  opacity: 0.86;
  pointer-events: none;
}

.hero-art img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.58;
  filter: saturate(0.8) contrast(1.05);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.52) 22%, #000 47%);
  mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.52) 22%, #000 47%);
}

.depth-ring {
  position: absolute;
  border: 1px solid rgba(145, 227, 237, 0.16);
  border-radius: 50%;
}

.depth-ring-one { inset: 11% 4% 8% 8%; }
.depth-ring-two { inset: 23% 14% 20% 20%; }

.horizon {
  position: absolute;
  top: 54%;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(145, 227, 237, 0.28), transparent);
  box-shadow: 0 0 2.5rem rgba(145, 227, 237, 0.15);
}

.ice-light {
  position: absolute;
  width: min(50vw, 43rem);
  aspect-ratio: 1;
  top: 50%;
  left: 59%;
  transform: translate(-50%, -50%) rotate(8deg);
  background:
    radial-gradient(circle at 45% 40%, rgba(214, 251, 255, 0.3), transparent 7%),
    radial-gradient(circle at 52% 51%, rgba(145, 227, 237, 0.21), transparent 26%),
    radial-gradient(circle at 58% 62%, rgba(138, 54, 92, 0.16), transparent 42%);
  filter: blur(1px);
}

.platform-note {
  position: absolute;
  right: 0;
  bottom: 1.6rem;
  margin: 0;
  color: var(--subtle);
  font-size: 0.77rem;
  letter-spacing: 0.04em;
}

.method {
  width: var(--page);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 5rem minmax(0, 0.86fr) minmax(20rem, 1.1fr);
  gap: clamp(2rem, 6vw, 7rem);
  padding: clamp(7rem, 15vw, 13rem) 0;
  border-top: 1px solid var(--line);
}

.possibilities {
  width: var(--page);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr) minmax(20rem, 0.8fr);
  gap: clamp(2rem, 6vw, 7rem);
  padding: clamp(7rem, 15vw, 13rem) 0;
  border-top: 1px solid var(--line);
}

.possibilities-body > p {
  margin: 0;
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.65;
}

.possibilities dl { margin: 3rem 0 0; }

.possibilities dl div {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1.5rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
}

.possibilities dt { color: var(--ice-bright); font-size: 0.86rem; }
.possibilities dd { margin: 0; color: var(--subtle); font-size: 0.84rem; line-height: 1.55; }

.document-main,
.support-main {
  width: min(92vw, 78rem);
  margin-inline: auto;
  padding: clamp(4.5rem, 10vw, 8rem) 0 clamp(7rem, 14vw, 12rem);
}

.document-header,
.support-header {
  max-width: 54rem;
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  border-bottom: 1px solid var(--line);
}

.document-header h1,
.support-header h1 {
  max-width: none;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.95;
}

.effective-date,
.document-lede {
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
  line-height: 1.65;
}

.effective-date { margin-top: 1.7rem; }
.document-lede { max-width: 43rem; margin-top: 2rem; }

.legal-document {
  display: grid;
  grid-template-columns: minmax(11rem, 0.32fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 8vw, 8rem);
  margin-top: clamp(3.5rem, 8vw, 7rem);
}

.legal-index {
  position: sticky;
  top: 2rem;
  align-self: start;
  color: var(--subtle);
  font-size: 0.78rem;
  line-height: 1.7;
}

.legal-index a { color: var(--muted); text-underline-offset: 0.2em; }

.legal-copy { max-width: 48rem; }

.legal-copy section {
  scroll-margin-top: 2rem;
  padding: 0 0 3.5rem;
}

.legal-copy h2 {
  max-width: none;
  margin-bottom: 1.35rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.legal-copy h3 {
  margin: 1.7rem 0 0.5rem;
  font-size: 1rem;
}

.legal-copy p,
.legal-copy li,
.support-copy p {
  color: #c1cdd0;
  font-size: 1rem;
  line-height: 1.76;
}

.legal-copy ul { padding-left: 1.25rem; }
.legal-copy a,
.support-copy a { color: var(--ice-bright); text-underline-offset: 0.2em; }

.support-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 7vw, 7rem);
  max-width: 58rem;
  padding-top: clamp(3.5rem, 8vw, 7rem);
}

.support-copy section { border-top: 1px solid var(--line); padding-top: 1.4rem; }
.support-copy h2 { max-width: none; font-size: 1.5rem; letter-spacing: -0.02em; }

.section-index {
  color: var(--amber);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1rem;
}

h2 {
  max-width: 13ch;
  font-size: clamp(2.7rem, 5vw, 5.4rem);
  line-height: 0.98;
}

.method-copy > p:last-child {
  max-width: 39rem;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.method-sequence {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: method;
}

.method-sequence li {
  position: relative;
  display: grid;
  grid-template-columns: minmax(10rem, 1fr) minmax(9rem, 1fr);
  gap: 1.5rem;
  padding: 1.35rem 0 1.35rem 2.7rem;
  border-top: 1px solid var(--line);
  counter-increment: method;
}

.method-sequence li::before {
  content: "0" counter(method);
  position: absolute;
  top: 1.5rem;
  left: 0;
  color: var(--subtle);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.method-sequence span { font-family: Georgia, "Times New Roman", serif; }
.method-sequence small { color: var(--subtle); font-size: 0.84rem; line-height: 1.5; }

.site-footer {
  min-height: 9rem;
  border-top: 1px solid var(--line);
  color: var(--subtle);
}

.site-footer p { margin: 0; font-size: 0.78rem; }

@media (max-width: 54rem) {
  .site-header nav a:first-child { display: none; }
  .hero-copy { width: min(39rem, 92%); }
  .hero-art { left: 20%; opacity: 0.55; }
  .method { grid-template-columns: 3rem 1fr; }
  .method-sequence { grid-column: 2; }
  .possibilities { grid-template-columns: 3rem 1fr; }
  .possibilities-body { grid-column: 2; }
}

@media (max-width: 40rem) {
  .site-header { min-height: 4.8rem; }
  .site-header nav { gap: 1rem; }
  .site-header nav a { font-size: 0.8rem; }
  .hero { min-height: calc(100svh - 4.8rem); }
  .hero-copy { width: 100%; padding: 5rem 0 7rem; }
  h1 { font-size: clamp(3rem, 15vw, 5rem); }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 1.4rem; }
  .platform-note { max-width: 15rem; text-align: right; }
  .method { grid-template-columns: 1fr; gap: 1.7rem; }
  .method-copy,
  .method-sequence { grid-column: 1; }
  .possibilities { grid-template-columns: 1fr; }
  .possibilities-heading,
  .possibilities-body { grid-column: 1; }
  .section-index { display: none; }
  .method-sequence li { grid-template-columns: 1fr; gap: 0.45rem; }
  .site-footer { flex-wrap: wrap; padding: 2.5rem 0; }
  .site-footer nav { order: 3; width: 100%; }
  .legal-document { grid-template-columns: 1fr; }
  .legal-index { position: static; }
  .support-copy { grid-template-columns: 1fr; }
  .possibilities dl div { grid-template-columns: 1fr; gap: 0.45rem; }
}

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

@media (prefers-contrast: more) {
  :root { --muted: #d1dfe2; --subtle: #b2c2c6; --line: rgba(214, 251, 255, 0.38); }
}