:root {
  --ink: #070a12;
  --ink-soft: #0c1220;
  --surface: #101827;
  --surface-raised: #131e30;
  --line: rgba(189, 220, 255, 0.17);
  --line-strong: rgba(189, 220, 255, 0.3);
  --text: #f1f6fc;
  --muted: #a9b8cb;
  --dim: #77869a;
  --blue: #54c9f7;
  --ice: #c9f4ff;
  --ember: #ff8844;
  --ember-soft: #ffc080;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: Georgia, "Times New Roman", serif;
  --page: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 82% 3%, rgba(34, 62, 105, 0.58) 0, transparent 31rem),
    radial-gradient(circle at 1% 35%, rgba(17, 56, 91, 0.58) 0, transparent 36rem),
    radial-gradient(circle at 84% 72%, rgba(84, 36, 24, 0.2) 0, transparent 28rem),
    var(--ink);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(176, 217, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176, 217, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 76%);
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 10;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.85'/%3E%3C/svg%3E");
}

a { color: inherit; }
img { display: block; max-width: 100%; }
button { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--display); font-weight: 400; letter-spacing: -0.045em; }

:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 30;
  padding: 0.75rem 1rem;
  background: var(--ice);
  color: var(--ink);
  font-weight: 800;
}

.skip-link:focus { top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 9;
  min-height: 78px;
  padding: 0 clamp(1.25rem, 4vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 10, 18, 0.78);
  backdrop-filter: blur(18px);
}

.brand,
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.62rem;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.brand img,
.footer-brand img {
  object-fit: contain;
  filter: drop-shadow(0 0 11px rgba(79, 195, 247, 0.58));
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 2.5vw, 2.3rem);
  color: var(--muted);
  font-size: 0.8rem;
}

.site-header nav a,
.nav-action { text-decoration: none; }
.site-header nav a { transition: color 160ms ease; }
.site-header nav a:hover { color: var(--ice); }

.nav-action {
  padding-bottom: 0.22rem;
  border-bottom: 1px solid var(--ember);
  font-size: 0.8rem;
  white-space: nowrap;
}

.mobile-menu { display: none; position: relative; }
.mobile-menu summary { padding: 0.45rem 0.7rem; border: 1px solid var(--line-strong); color: var(--muted); font-size: 0.68rem; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; list-style: none; cursor: pointer; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu[open] summary { border-color: var(--ice); color: var(--ice); }
.mobile-menu nav { position: absolute; right: 0; top: calc(100% + 10px); z-index: 20; min-width: 190px; display: grid; padding: 0.55rem; border: 1px solid var(--line-strong); background: rgba(7, 10, 18, 0.97); }
.mobile-menu nav a { padding: 0.6rem 0.65rem; color: var(--muted); font-size: 0.82rem; text-decoration: none; }
.mobile-menu nav a:hover,
.mobile-menu nav a:focus-visible { color: var(--ice); }

.hero {
  width: min(100%, 1320px);
  min-height: min(760px, calc(100svh - 78px));
  margin: 0 auto;
  padding: clamp(4.8rem, 9vw, 7.5rem) clamp(1.5rem, 7vw, 7rem) 6rem;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.hero-copy { position: relative; z-index: 2; max-width: 650px; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1.15rem;
  color: var(--ember-soft);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow span { display: block; width: 19px; height: 1px; background: var(--ember); }

h1 {
  margin-bottom: 1.65rem;
  font-size: clamp(3.65rem, 6vw, 6.1rem);
  line-height: 0.96;
}

h1 em {
  color: var(--blue);
  font-style: normal;
  text-shadow: 0 0 32px rgba(79, 195, 247, 0.24);
}

.hero-summary {
  max-width: 540px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 2.1rem 0 1.35rem;
}

.button {
  min-height: 46px;
  padding: 0.78rem 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  border: 0;
  border-radius: 0;
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.primary {
  position: relative;
  overflow: hidden;
  color: #281108;
  background: linear-gradient(135deg, #fff1e7, #ff9b56);
  box-shadow: 0 8px 28px rgba(255, 138, 61, 0.18);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.primary::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -45%;
  width: 32%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.6), transparent);
  transform: skewX(-14deg) translateX(-140%);
}

@media (hover: hover) {
  .primary:hover::after { animation: button-shine 720ms ease; }
}

.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(255, 138, 61, 0.3);
}

.text-link {
  color: var(--muted);
  font-size: 0.86rem;
  text-underline-offset: 0.32rem;
  transition: color 160ms ease;
}

.text-link:hover { color: var(--ice); }
.quiet-note { margin: 0; color: var(--muted); font-size: 0.78rem; letter-spacing: 0.025em; }

.artifact-stage {
  position: relative;
  min-height: 500px;
  display: grid;
  place-items: center;
}

.artifact-halo {
  width: 310px;
  height: 310px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 195, 247, 0.16), rgba(79, 195, 247, 0.035) 45%, transparent 72%);
  filter: blur(4px);
}

.hero-mark-wrap {
  position: absolute;
  width: min(92%, 430px);
  transform: perspective(700px) rotateY(var(--mark-tilt-x, 0deg)) rotateX(var(--mark-tilt-y, 0deg));
  will-change: transform;
  animation: float 7s ease-in-out infinite;
}

.hero-mark {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 34px rgba(0, 0, 0, 0.55)) drop-shadow(-18px 2px 26px rgba(62, 192, 255, 0.35)) drop-shadow(18px 3px 28px rgba(255, 117, 45, 0.3));
}

.hero-mark-shimmer {
  position: absolute;
  inset: 0;
  display: none;
  overflow: hidden;
  pointer-events: none;
  mix-blend-mode: screen;
  -webkit-mask-image: url("assets/aifrit-mark.png");
  mask-image: url("assets/aifrit-mark.png");
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
}

@supports ((-webkit-mask-image: url("")) or (mask-image: url(""))) {
  .hero-mark-shimmer { display: block; }
}

.hero-mark-shimmer::before {
  content: "";
  position: absolute;
  top: -25%;
  bottom: -25%;
  left: 0;
  width: 34%;
  background: linear-gradient(105deg, transparent, rgba(201, 244, 255, 0.32) 42%, rgba(255, 192, 128, 0.2) 58%, transparent);
  transform: translateX(-180%) rotate(9deg);
  animation: shimmer-sweep 6.8s ease-in-out infinite;
}

.artifact-caption {
  position: absolute;
  bottom: 9%;
  margin: 0;
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stage-coordinate {
  position: absolute;
  color: rgba(201, 244, 255, 0.45);
  font-size: 0.54rem;
  letter-spacing: 0.16em;
}

.coordinate-a { top: 10%; left: 2%; }
.coordinate-b { right: 1%; bottom: 14%; writing-mode: vertical-rl; }

.orbit {
  position: absolute;
  border: 1px solid rgba(123, 205, 255, 0.18);
  border-radius: 50%;
  transform: rotate(-26deg);
}

.orbit-one { width: 450px; height: 145px; }
.orbit-two { width: 330px; height: 470px; transform: rotate(30deg); border-color: rgba(255, 154, 86, 0.14); }

.ember,
.star { position: absolute; border-radius: 50%; }
.ember { width: 5px; height: 5px; background: var(--ember); box-shadow: 0 0 16px var(--ember); animation: ember-pulse 5.6s ease-in-out infinite; }
.star { width: 3px; height: 3px; background: var(--ice); box-shadow: 0 0 12px var(--blue); animation: twinkle 4.2s ease-in-out infinite; }
.ember-a { top: 17%; right: 16%; }
.ember-b { bottom: 24%; left: 10%; animation-delay: -1.9s; }
.ember-c { top: 55%; right: 3%; animation-delay: -3.7s; }
.star-a { top: 24%; left: 11%; }
.star-b { top: 19%; right: 6%; animation-delay: -1.3s; }
.star-c { bottom: 19%; right: 17%; animation-delay: -2.1s; }
.star-d { bottom: 35%; left: 4%; animation-delay: -3.2s; }

.section-heading { max-width: 640px; }
.section-heading.wide { max-width: 820px; }
.section-heading h2 { margin-bottom: 1.2rem; font-size: clamp(2.7rem, 4.8vw, 4.5rem); line-height: 1.02; }
.section-heading > p:not(.eyebrow) { color: var(--muted); }
.centered { margin-inline: auto; text-align: center; }
.centered .eyebrow { justify-content: center; }

.memory-section,
.growth-section,
.access-section {
  width: min(100%, var(--page));
  margin: 0 auto;
  padding: 7rem clamp(1.5rem, 5vw, 4rem);
}

.memory-field {
  position: relative;
  min-height: 580px;
  margin-top: 3.5rem;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(169, 221, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 221, 255, 0.04) 1px, transparent 1px),
    linear-gradient(115deg, rgba(22, 53, 83, 0.58), rgba(9, 14, 25, 0.78) 45%, rgba(76, 33, 23, 0.26));
  background-size: 44px 44px, 44px 44px, auto;
}

.memory-field::before,
.memory-field::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  opacity: 0.65;
}

.memory-field::before { width: 420px; height: 420px; right: -100px; top: -110px; background: radial-gradient(circle, rgba(55, 171, 240, 0.24), transparent 66%); }
.memory-field::after { width: 350px; height: 350px; left: -80px; bottom: -150px; background: radial-gradient(circle, rgba(255, 126, 54, 0.16), transparent 68%); }

.field-help,
.field-index { position: absolute; top: 1.15rem; z-index: 2; margin: 0; font-size: 0.7rem; }
.field-help { left: 1.35rem; color: var(--muted); }
.field-index { right: 1.35rem; color: var(--dim); letter-spacing: 0.12em; }

.field-core {
  position: absolute;
  left: 50%;
  top: 44%;
  z-index: 2;
  width: 190px;
  height: 190px;
  display: grid;
  place-items: center;
  transform: translate(-50%, -50%);
}

.field-core img {
  width: 140px;
  height: auto;
  filter: drop-shadow(-9px 0 16px rgba(79, 195, 247, 0.5)) drop-shadow(8px 0 16px rgba(255, 138, 61, 0.4));
}

.field-core span { color: var(--ice); font-size: 0.56rem; letter-spacing: 0.23em; }

.core-ring {
  position: absolute;
  width: 185px;
  height: 185px;
  border: 1px solid rgba(174, 234, 255, 0.33);
  border-radius: 50%;
  animation: ring 10s linear infinite;
}

.core-ring::before,
.core-ring::after { content: ""; position: absolute; inset: 15px; border: 1px solid rgba(255, 168, 103, 0.2); border-radius: 50%; transform: rotateX(68deg); }
.core-ring::after { inset: -17px; transform: rotateY(65deg); }

.memory-object {
  position: absolute;
  z-index: 3;
  min-width: 124px;
  min-height: 68px;
  padding: 0.92rem 1rem;
  border: 1px solid rgba(188, 229, 255, 0.32);
  background: rgba(10, 17, 28, 0.8);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  touch-action: manipulation;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

@media (hover: hover) and (pointer: fine) {
  .memory-object { cursor: grab; }
  .memory-object.dragging { cursor: grabbing; transition: none; }
}

.memory-object:hover,
.memory-object:focus-visible,
.memory-object.active {
  border-color: var(--ember-soft);
  background: rgba(30, 44, 63, 0.96);
  box-shadow: 0 0 28px rgba(255, 138, 61, 0.08);
}

.memory-object:hover:not(.dragging),
.memory-object:focus-visible { transform: translateY(-3px); }
.memory-object.active { border-left-color: var(--blue); }
.memory-object b,
.memory-object small { display: block; }
.memory-object b { font-family: var(--display); font-size: 1.28rem; font-weight: 400; }
.memory-object small { margin-top: 0.08rem; color: var(--muted); font-size: 0.63rem; }
.goal { left: 8%; top: 24%; }
.context { right: 9%; top: 19%; }
.decision { left: 14%; bottom: 18%; }
.memory { right: 13%; bottom: 19%; }

.memory-response {
  position: absolute;
  left: 50%;
  bottom: 1.35rem;
  z-index: 4;
  width: min(90%, 620px);
  padding: 1rem 1.25rem 0;
  border-top: 1px solid rgba(201, 242, 255, 0.33);
  background: linear-gradient(90deg, transparent, rgba(7, 11, 20, 0.88) 15%, rgba(7, 11, 20, 0.88) 85%, transparent);
  text-align: center;
  transform: translateX(-50%);
}

.response-label { margin: 0 0 0.35rem; color: var(--ember-soft); font-size: 0.62rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }
.response-copy { margin: 0; color: #dbe7f2; font-family: var(--display); font-size: 1.1rem; }
.connection-line {
  position: absolute;
  z-index: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(201, 244, 255, 0.9), rgba(132, 215, 255, 0.5) 55%, rgba(255, 136, 68, 0.6));
  box-shadow: 0 0 9px rgba(132, 215, 255, 0.35);
  transform-origin: 0 50%;
  opacity: 0;
  transition: opacity 420ms ease;
  pointer-events: none;
}

.connection-line.is-active { opacity: 1; }

.thread-lines i { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, rgba(132, 215, 255, 0.42), transparent); transform-origin: left; }
.thread-lines i::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 42%, rgba(201, 244, 255, 0.65) 50%, transparent 58%); background-size: 220% 100%; background-position: -60% 0; background-repeat: no-repeat; animation: thread-pulse 5.4s linear infinite; }
.thread-lines i:nth-child(1) { width: 40%; left: 17%; top: 37%; transform: rotate(13deg); }
.thread-lines i:nth-child(2) { width: 36%; left: 47%; top: 42%; transform: rotate(-21deg); }
.thread-lines i:nth-child(2)::after { animation-delay: -1.8s; }
.thread-lines i:nth-child(3) { width: 37%; left: 24%; top: 58%; transform: rotate(-30deg); }
.thread-lines i:nth-child(3)::after { animation-delay: -3.6s; }

.field-cta { margin: 1.6rem 0 0; text-align: center; }

.growth-section { padding-top: 4.5rem; }

.contrast-strip { margin-top: 3rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.contrast-cell { padding: 1.7rem 1.9rem; background: rgba(10, 17, 29, 0.9); }
.contrast-cell p:last-child { max-width: 430px; margin: 0; color: var(--muted); font-family: var(--display); font-size: 1.12rem; }
.contrast-cell .cap-number { color: var(--dim); }
.contrast-cell.is-aifrit { background: linear-gradient(135deg, rgba(24, 54, 80, 0.85), rgba(59, 31, 23, 0.55)); }
.contrast-cell.is-aifrit .cap-number { color: var(--ember-soft); }
.contrast-cell.is-aifrit p:last-child { color: var(--text); }
.growth-path { margin: 3.2rem 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; counter-reset: path; }
.growth-path li { display: grid; grid-template-columns: 100px 1fr; gap: 1.5rem; padding: 2.1rem 0; border-bottom: 1px solid var(--line); transition: border-color 320ms ease, padding-left 320ms ease; }
.growth-path span { color: var(--ember); font-size: 0.7rem; letter-spacing: 0.1em; transition: text-shadow 320ms ease; }

@media (hover: hover) {
  .growth-path li:hover { padding-left: 0.6rem; border-bottom-color: rgba(255, 161, 87, 0.4); }
  .growth-path li:hover span { text-shadow: 0 0 14px rgba(255, 136, 68, 0.55); }
}
.growth-path h3 { margin-bottom: 0.35rem; font-family: var(--display); font-size: 1.35rem; font-weight: 400; }
.growth-path p { max-width: 570px; margin: 0; color: var(--muted); }

.capabilities-section { padding: 7rem clamp(1.5rem, 5vw, 4rem); background: linear-gradient(180deg, transparent, rgba(19, 37, 59, 0.32), transparent); }
.capabilities-section > .section-heading { width: min(100%, calc(var(--page) - 8rem)); max-width: 900px; margin: 0 auto; }
.capability-grid { width: min(100%, calc(var(--page) - 8rem)); margin: 3.2rem auto 0; display: grid; grid-template-columns: 1.15fr 0.85fr 1fr; gap: 1px; background: var(--line); }
.capability { position: relative; min-height: 365px; overflow: hidden; padding: 2rem; background: #0a111d; transition: background 320ms ease; }
.capability::after { content: ""; position: absolute; right: -40px; bottom: -80px; width: 180px; height: 180px; border: 1px solid rgba(173, 229, 255, 0.1); transform: rotate(45deg); transition: transform 640ms ease, border-color 320ms ease; }

@media (hover: hover) {
  .capability:hover { background: #0c1524; }
  .capability:hover::after { transform: rotate(63deg); border-color: rgba(173, 229, 255, 0.2); }
  .capability:hover .archive i { border-color: rgba(143, 223, 255, 0.85); }
  .capability:hover .archive i:nth-child(2) { border-color: rgba(255, 161, 87, 0.9); }
  .capability:hover .archive i:nth-child(1) { translate: 6px 3px; }
  .capability:hover .archive i:nth-child(2) { translate: 0 6px; }
  .capability:hover .archive i:nth-child(3) { translate: -6px -3px; }
}
.capability h3 { margin: 0.4rem 0 0.7rem; font-family: var(--display); font-size: 2rem; font-weight: 400; }
.capability > p:last-child { max-width: 290px; color: var(--muted); font-size: 0.9rem; }
.cap-number { margin-bottom: 0.35rem; color: var(--ember-soft); font-size: 0.61rem; font-weight: 800; letter-spacing: 0.15em; }
.artifact-symbol { position: relative; height: 150px; margin-bottom: 1rem; }
.artifact-symbol i { position: absolute; display: block; }
.archive i { width: 78px; height: 78px; left: 10%; top: 35px; border: 1px solid rgba(143, 223, 255, 0.6); background: linear-gradient(135deg, rgba(105, 212, 255, 0.16), transparent); transform: rotate(45deg); animation: archive-breathe 7.5s ease-in-out infinite; transition: translate 520ms ease, border-color 320ms ease; }
.archive i:nth-child(2) { left: 32%; top: 17px; border-color: rgba(255, 161, 87, 0.7); animation-delay: -2.5s; }
.archive i:nth-child(3) { left: 55%; top: 64px; border-color: rgba(143, 223, 255, 0.36); animation-delay: -5s; }
.compass::before { content: ""; position: absolute; left: 35%; top: 8px; width: 130px; height: 130px; border: 1px solid rgba(255, 183, 112, 0.5); border-radius: 50%; }
.compass i:first-child { left: calc(35% + 37px); top: 33px; width: 56px; height: 80px; background: linear-gradient(180deg, var(--ember) 50%, rgba(201, 244, 255, 0.72) 50%); clip-path: polygon(50% 0, 82% 100%, 50% 78%, 18% 100%); filter: drop-shadow(0 0 12px rgba(255, 138, 61, 0.35)); transform: rotate(24deg); animation: compass-wander 11s ease-in-out infinite; }
.compass.is-tracking i:first-child { animation: none; transform: rotate(var(--compass-angle, 24deg)); }
.compass i:last-child { left: calc(35% + 61px); top: 69px; width: 8px; height: 8px; border-radius: 50%; background: var(--ice); box-shadow: 0 0 10px rgba(84, 201, 247, 0.8); }
.voice i { left: 15%; bottom: 15px; width: 8px; background: var(--blue); box-shadow: 0 0 14px rgba(79, 195, 247, 0.5); transform-origin: 50% 100%; transform: scaleY(calc(1 + var(--bar-boost, 0) * 0.35)); filter: brightness(calc(1 + var(--bar-boost, 0) * 0.8)); animation: voice-idle 3.6s ease-in-out infinite; }
.voice i:nth-child(1) { height: 54px; }
.voice i:nth-child(2) { left: 27%; height: 105px; background: var(--ice); animation-delay: -1.2s; }
.voice i:nth-child(3) { left: 39%; height: 77px; background: var(--ember); animation-delay: -2.4s; }

.access-section { padding-top: 6rem; }
.journey-rail { margin: 3.5rem 0 1px; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); list-style: none; }
.journey-rail li { position: relative; min-height: 128px; padding: 1.35rem; display: flex; flex-direction: column; background: rgba(10, 17, 29, 0.92); transition: background 320ms ease; }

@media (hover: hover) {
  .journey-rail li:hover { background: rgba(17, 28, 45, 0.96); }
  .journey-rail li:hover span { color: var(--ember-soft); }
}
.journey-rail li::after { content: "→"; position: absolute; right: -0.55rem; top: 50%; z-index: 2; width: 1.1rem; height: 1.1rem; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--blue); font-size: 0.72rem; transform: translateY(-50%); }
.journey-rail li:last-child::after { content: none; }
.journey-rail span { margin-bottom: auto; color: var(--ember); font-size: 0.62rem; letter-spacing: 0.12em; }
.journey-rail strong { font-family: var(--display); font-size: 1.05rem; font-weight: 400; }
.journey-rail small { color: var(--dim); font-size: 0.66rem; }

.access-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1px; background: var(--line); }
.access-grid article { min-width: 0; min-height: 300px; padding: 2rem; background: #0a111d; }
.access-grid article:first-child { background: linear-gradient(135deg, #1a2a3d, #261a15); }
.access-grid h3,
.destination-strip h3 { margin: 0.4rem 0 0.65rem; font-family: var(--display); font-size: 1.8rem; font-weight: 400; }
.access-grid article > p:not(.cap-number, .prototype-status, .price-line) { min-height: 76px; color: var(--muted); font-size: 0.88rem; }
.price-line { margin: 0.2rem 0 1rem; display: flex; align-items: baseline; gap: 0.5rem; }
.price-line strong { font-family: var(--display); font-size: 2.2rem; font-weight: 400; color: var(--text); }
.price-line span { color: var(--muted); font-size: 0.78rem; }

.button.pending {
  border: 1px solid rgba(255, 155, 86, 0.5);
  background: rgba(255, 138, 61, 0.07);
  color: var(--ember-soft);
  cursor: default;
}

.prototype-status { margin: 0.9rem 0 0; color: var(--muted); font-size: 0.72rem; }
.prototype-status.confirmed { color: var(--ember-soft); }

.destination-strip { margin-top: 1px; padding: 2rem; display: grid; grid-template-columns: 1.4fr auto; align-items: center; gap: 2rem; border: 1px solid var(--line); background: rgba(10, 17, 29, 0.76); }
.destination-strip h3 { font-size: 1.3rem; }
.destination-strip p { margin-bottom: 0; color: var(--muted); font-size: 0.8rem; }
.destination-strip > .text-link { justify-self: end; }

.faq-section { width: min(100%, calc(var(--page) - 8rem)); margin: 0 auto; padding: 2rem clamp(1.5rem, 5vw, 4rem) 7rem; }
.faq-list { margin-top: 2.6rem; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 1.3rem 2.4rem 1.3rem 0; list-style: none; cursor: pointer; font-family: var(--display); font-size: 1.25rem; transition: color 200ms ease; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 0.2rem; top: 50%; color: var(--ember-soft); font-family: var(--sans); font-size: 1.1rem; transform: translateY(-50%); transition: transform 260ms ease; }
.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-list details[open] summary { color: var(--ice); }
.faq-list details p { max-width: 640px; margin: 0; padding: 0 0 1.4rem; color: var(--muted); }
.faq-list details a { color: var(--ice); text-underline-offset: 0.28rem; }

@media (hover: hover) {
  .faq-list summary:hover { color: var(--ice); }
}

footer { padding: 2.2rem clamp(1.5rem, 5vw, 4rem); display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.78rem; }
footer p { margin: 0; }
.footer-brand { color: var(--text); }
.prototype-label { color: #718098; font-size: 0.6rem; letter-spacing: 0.12em; }

/* Checkout visual prototype */
.checkout-page { background: radial-gradient(circle at 17% 12%, rgba(22, 60, 94, 0.58), transparent 29rem), radial-gradient(circle at 83% 46%, rgba(91, 41, 24, 0.27), transparent 32rem), var(--ink); }
.checkout-header { position: relative; }
.header-prototype-label { margin: 0; color: var(--dim); font-size: 0.6rem; letter-spacing: 0.16em; }
.checkout-main { width: min(100%, 1120px); margin: 0 auto; padding: 5.5rem clamp(1.5rem, 5vw, 4rem) 7rem; }
.checkout-intro { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr); align-items: end; gap: 4rem; }
.checkout-intro h1 { max-width: 720px; margin: 0; font-size: clamp(3.25rem, 6vw, 5.8rem); }
.checkout-intro > p { max-width: 420px; margin: 0 0 0.55rem; color: var(--muted); }

.checkout-progress { margin: 4rem 0 1px; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); list-style: none; }
.checkout-progress li { min-width: 0; padding: 1rem 1.15rem; display: grid; grid-template-columns: auto 1fr; column-gap: 0.8rem; background: rgba(10, 17, 29, 0.94); }
.checkout-progress li.current { background: linear-gradient(135deg, rgba(24, 54, 80, 0.96), rgba(59, 31, 23, 0.9)); box-shadow: inset 0 -2px var(--ember); }
.checkout-progress li.complete span { color: var(--blue); }
.checkout-progress span { grid-row: 1 / 3; align-self: center; color: var(--dim); font-size: 0.62rem; letter-spacing: 0.1em; }
.checkout-progress strong { font-family: var(--display); font-size: 1rem; font-weight: 400; }
.checkout-progress small { color: var(--dim); font-size: 0.64rem; }

.checkout-artifact { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); border: 1px solid var(--line); background: rgba(8, 13, 22, 0.82); box-shadow: 0 28px 80px rgba(0, 0, 0, 0.26); }
.checkout-context,
.payment-preview { min-width: 0; padding: clamp(1.5rem, 4vw, 3rem); }
.checkout-context { border-right: 1px solid var(--line); background: linear-gradient(145deg, rgba(23, 51, 78, 0.66), rgba(10, 17, 29, 0.2) 58%, rgba(78, 35, 23, 0.24)); }
.verified-badge { width: fit-content; margin-bottom: 2.8rem; padding: 0.42rem 0.65rem; border: 1px solid rgba(91, 211, 244, 0.38); background: rgba(52, 151, 183, 0.09); color: var(--ice); font-size: 0.68rem; font-weight: 750; letter-spacing: 0.05em; text-transform: uppercase; }
.verified-badge span { margin-right: 0.35rem; color: var(--blue); }
.context-kicker { margin-bottom: 0.5rem; color: var(--dim); font-size: 0.6rem; letter-spacing: 0.15em; }
.checkout-context > h2,
.payment-preview h2 { margin-bottom: 1.7rem; font-size: 2.35rem; line-height: 1.05; }
.invite-facts { margin: 0 0 2rem; }
.invite-facts div { padding: 0.8rem 0; display: flex; justify-content: space-between; gap: 1.5rem; border-bottom: 1px solid var(--line); }
.invite-facts dt { color: var(--dim); font-size: 0.72rem; }
.invite-facts dd { margin: 0; color: var(--text); font-size: 0.75rem; text-align: right; }
.plan-card { padding: 1.35rem; border: 1px solid var(--line-strong); background: rgba(8, 13, 22, 0.62); }
.plan-card > div:first-child { display: flex; justify-content: space-between; gap: 1rem; }
.plan-card h3 { margin: 0; font-family: var(--display); font-size: 1.4rem; font-weight: 400; }
.plan-price { margin: 1.15rem 0 0.35rem; display: flex; align-items: baseline; gap: 0.45rem; }
.plan-price strong { font-family: var(--display); font-size: 2.1rem; font-weight: 400; }
.plan-price span { color: var(--muted); font-size: 0.72rem; }
.confirmation-tag { margin: 0; color: var(--dim); font-size: 0.65rem; }
.trial-note { margin: 1rem 0 0; padding-top: 0.85rem; border-top: 1px solid var(--line); color: var(--ember-soft); font-size: 0.72rem; }

.preview-heading { margin-bottom: 2rem; display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.preview-heading h2 { margin: 0; }
.preview-heading > span { padding: 0.35rem 0.45rem; border: 1px solid rgba(255, 179, 112, 0.3); color: var(--ember-soft); font-size: 0.55rem; letter-spacing: 0.12em; }
.card-placeholder { padding: 1.4rem; display: grid; gap: 1rem; border: 1px solid var(--line-strong); background: rgba(255, 255, 255, 0.025); }
.placeholder-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.placeholder-field { min-width: 0; }
.placeholder-field span { display: block; margin-bottom: 0.4rem; color: var(--dim); font-size: 0.63rem; }
.placeholder-field i { display: block; height: 42px; border: 1px solid rgba(189, 220, 255, 0.14); background: linear-gradient(90deg, rgba(201, 244, 255, 0.035), transparent); }
.security-note { margin: 1.5rem 0; display: grid; grid-template-columns: 32px 1fr; gap: 0.8rem; }
.security-glyph { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line-strong); color: var(--blue); transform: rotate(45deg); }
.security-note p { margin: 0; color: var(--muted); font-size: 0.72rem; }
.security-note strong { display: block; margin-bottom: 0.2rem; color: var(--text); font-size: 0.73rem; }
.prototype-submit { min-height: 48px; padding: 0.85rem 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: linear-gradient(135deg, rgba(255, 241, 231, 0.34), rgba(255, 155, 86, 0.34)); color: rgba(255, 245, 239, 0.74); font-size: 0.8rem; font-weight: 800; cursor: not-allowed; }
.prototype-submit span { font-size: 0.58rem; letter-spacing: 0.12em; text-transform: uppercase; }
.payment-footnote { margin: 0.8rem 0 0; color: var(--dim); font-size: 0.62rem; }

.activation-preview { margin-top: 1px; padding: 2rem; display: grid; grid-template-columns: 70px 1fr auto; align-items: center; gap: 1.5rem; border: 1px solid var(--line); background: rgba(10, 17, 29, 0.88); }
.activation-symbol { position: relative; width: 56px; height: 56px; border: 1px solid rgba(84, 201, 247, 0.48); transform: rotate(45deg); }
.activation-symbol::before,
.activation-symbol::after { content: ""; position: absolute; inset: 8px; border: 1px solid rgba(255, 136, 68, 0.35); }
.activation-symbol i { position: absolute; inset: 22px; background: var(--ice); box-shadow: 0 0 18px var(--blue); }
.activation-preview h2 { margin: 0.1rem 0 0.35rem; font-size: 1.7rem; }
.activation-preview p:not(.cap-number) { max-width: 670px; margin: 0; color: var(--muted); font-size: 0.78rem; }
.outcome-state { color: var(--dim); font-size: 0.58rem; letter-spacing: 0.14em; white-space: nowrap; }
.prototype-boundary { margin-top: 1.5rem; padding: 1rem 1.2rem; display: flex; gap: 1.4rem; border-left: 2px solid var(--ember); background: rgba(255, 136, 68, 0.045); color: var(--muted); font-size: 0.72rem; }
.prototype-boundary strong { color: var(--ember-soft); white-space: nowrap; }
.prototype-boundary p { margin: 0; }

/* Scroll reveal — the .reveal class is only ever added by script.js when
   IntersectionObserver exists and reduced motion is off, so nothing is
   hidden for no-JS or reduced-motion visitors. */
.reveal { opacity: 0; translate: 0 18px; transition: opacity 640ms ease, translate 640ms ease; transition-delay: var(--reveal-delay, 0ms); }
.reveal.is-visible { opacity: 1; translate: 0 0; }

@keyframes float { 50% { translate: 0 -9px; rotate: 0.7deg; } }
@keyframes ring { to { transform: rotate(360deg); } }
@keyframes voice-idle { 50% { scale: 1 1.07; } }
@keyframes twinkle { 50% { opacity: 0.35; scale: 0.8; } }
@keyframes button-shine { to { transform: skewX(-14deg) translateX(560%); } }
@keyframes ember-pulse { 50% { opacity: 0.55; box-shadow: 0 0 7px var(--ember); } }
@keyframes thread-pulse { 0% { background-position: -60% 0; } 100% { background-position: 160% 0; } }
@keyframes compass-wander {
  0%, 100% { transform: rotate(24deg); }
  28% { transform: rotate(-18deg); }
  55% { transform: rotate(7deg); }
  80% { transform: rotate(-6deg); }
}
@keyframes archive-breathe {
  0%, 100% { transform: translateY(0) rotate(45deg) scale(1); }
  50% { transform: translateY(-6px) rotate(45deg) scale(1.03); }
}
@keyframes shimmer-sweep {
  0%, 52% { transform: translateX(-180%) rotate(9deg); }
  88%, 100% { transform: translateX(430%) rotate(9deg); }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr); padding-inline: 3rem; }
  .capability-grid,
  .capabilities-section > .section-heading { width: min(100%, 760px); }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .capability:last-child { grid-column: 1 / -1; }
  .access-grid article { min-height: 260px; }
  .checkout-intro { grid-template-columns: 1fr; gap: 1.5rem; }
  .checkout-artifact { grid-template-columns: 1fr; }
  .checkout-context { border-right: 0; border-bottom: 1px solid var(--line); }
}

@media (max-width: 760px) {
  .site-header { min-height: 68px; padding-inline: 1.25rem; }
  .site-header > nav { display: none; }
  .mobile-menu { display: block; }
  .nav-action { font-size: 0.72rem; }
  .hero { min-height: auto; padding: 4.5rem 1.5rem 5rem; grid-template-columns: 1fr; gap: 2.5rem; }
  h1 { font-size: clamp(3.25rem, 14vw, 4.7rem); }
  .hero-summary { font-size: 0.98rem; }
  .artifact-stage { min-height: 265px; }
  .hero-mark-wrap { width: min(84vw, 300px); }
  .orbit-one { width: min(88vw, 300px); height: 96px; }
  .orbit-two { width: 200px; height: 275px; }
  .artifact-caption { bottom: 0; }
  .coordinate-a { left: 5%; }
  .coordinate-b { right: 4%; }
  .memory-section,
  .growth-section,
  .access-section { padding: 5rem 1.5rem; }
  .capabilities-section { padding: 5rem 1.5rem; }
  .section-heading h2 { font-size: clamp(2.55rem, 11vw, 3.6rem); }
  .capability-grid,
  .capabilities-section > .section-heading { width: 100%; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability:last-child { grid-column: auto; }
  .capability { min-height: 300px; }
  .contrast-strip { grid-template-columns: 1fr; }
  .faq-section { padding: 1rem 1.5rem 5rem; }
  .faq-list summary { font-size: 1.1rem; }
  .journey-rail { grid-template-columns: 1fr 1fr; }
  .journey-rail li:nth-child(2)::after { content: none; }
  .journey-rail li { min-height: 112px; }
  .access-grid { grid-template-columns: 1fr; }
  .access-grid article { min-height: auto; }
  .access-grid article > p:not(.cap-number, .prototype-status) { min-height: auto; }
  .destination-strip { grid-template-columns: 1fr; }
  .destination-strip > .text-link { justify-self: start; }
  footer { align-items: flex-start; flex-direction: column; gap: 0.65rem; }
  .checkout-main { padding: 4.5rem 1.5rem 5rem; }
  .checkout-intro h1 { font-size: clamp(3rem, 13vw, 4.4rem); }
  .checkout-progress { grid-template-columns: 1fr 1fr; }
  .checkout-progress li { padding: 0.85rem; }
  .activation-preview { grid-template-columns: 52px 1fr; }
  .outcome-state { grid-column: 2; }
  .prototype-boundary { flex-direction: column; gap: 0.4rem; }
}

@media (max-width: 620px) {
  .memory-field { min-height: auto; padding: 4.65rem 1rem 1rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .field-help { right: 1rem; line-height: 1.35; }
  .field-index,
  .thread-lines { display: none; }
  .field-core { position: relative; left: auto; top: auto; grid-column: 1 / -1; width: 170px; height: 170px; margin: 0 auto 0.5rem; transform: none; }
  .field-core img { width: 125px; }
  .core-ring { width: 165px; height: 165px; }
  .memory-object { position: relative; inset: auto; width: 100%; min-width: 0; min-height: 68px; padding: 0.75rem; }
  .memory-response { position: relative; left: auto; bottom: auto; grid-column: 1 / -1; width: 100%; margin-top: 0.35rem; padding: 1rem 0.35rem 0.25rem; transform: none; }
  .response-copy { font-size: 1rem; }
  .header-prototype-label { display: none; }
  .checkout-context,
  .payment-preview { padding: 1.4rem; }
  .verified-badge { margin-bottom: 2rem; }
  .checkout-context > h2,
  .payment-preview h2 { font-size: 2rem; }
  .preview-heading { align-items: flex-start; flex-direction: column; }
  .invite-facts div { flex-direction: column; gap: 0.2rem; }
  .invite-facts dd { text-align: left; }
  .placeholder-row { grid-template-columns: 1fr; }
  .prototype-submit { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 390px) {
  .site-header { gap: 0.75rem; }
  .brand { font-size: 0.9rem; }
  .nav-action { font-size: 0.66rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 1.1rem; }
  .button { width: 100%; }
  .journey-rail { grid-template-columns: 1fr; }
  .journey-rail li::after,
  .journey-rail li:nth-child(2)::after { content: "↓"; right: 50%; top: auto; bottom: -0.56rem; transform: translateX(50%); }
  .journey-rail li:last-child::after { content: none; }
  .checkout-progress strong { font-size: 0.9rem; }
  .checkout-progress small { font-size: 0.58rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .hero-mark-wrap { transform: none; translate: none; rotate: none; }
  .hero-mark-shimmer { display: none; }
}