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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 0.75rem);
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
  max-width: 100%;
}

body {
  margin: 0;
  max-width: 100%;
  overflow-x: clip;
  background: var(--color-bg);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3,
p {
  margin: 0;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  color: var(--color-ink);
}

button,
input {
  font: inherit;
}

::selection {
  background: color-mix(in srgb, var(--color-accent) 24%, transparent);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.av-skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 80;
  padding: 0.65rem 1rem;
  background: var(--color-ink);
  color: var(--color-on-accent);
  border-radius: 0.5rem;
}

.av-skip:focus {
  top: 0.75rem;
}

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

.av-wrap,
.av-wrap--narrow,
.av-wrap--faq {
  width: min(100% - (var(--section-padding-x) * 2), var(--container));
  margin-inline: auto;
}

.av-wrap--narrow {
  width: min(100% - (var(--section-padding-x) * 2), var(--container-narrow));
}

.av-wrap--faq {
  width: min(100% - (var(--section-padding-x) * 2), 46rem);
}

.av-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-ink);
  position: relative;
  z-index: 70;
  min-height: var(--touch-min);
}

.av-brand:hover {
  color: var(--color-ink);
}

.av-brand__mark {
  width: 1.75rem;
  height: 1.75rem;
  flex: 0 0 auto;
  display: block;
  transition: transform var(--motion-base) var(--ease);
  transform-origin: 50% 50%;
}

.av-brand:hover .av-brand__mark,
.av-brand:focus-visible .av-brand__mark {
  transform: rotate(-5deg) scale(1.035);
}

.av-brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-logo);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--color-ink);
}

.av-site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 80;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

.av-site-header__inner {
  width: min(100% - (var(--section-padding-x) * 2), var(--container));
  margin-inline: auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.av-nav-desktop {
  display: none;
  align-items: center;
  gap: clamp(1rem, 3vw, 1.875rem);
}

.av-nav-desktop a {
  position: relative;
  color: var(--color-muted);
  font-size: var(--fs-nav);
  font-weight: 500;
  min-height: var(--touch-min);
  display: inline-flex;
  align-items: center;
}

.av-nav-desktop a:not(.av-btn)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0.45rem;
  left: 0;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--motion-base) var(--ease);
}

.av-nav-desktop a:not(.av-btn):hover::after,
.av-nav-desktop a:not(.av-btn):focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.av-nav-desktop a:hover {
  color: var(--color-ink);
  opacity: 1;
}

.av-nav-desktop .av-btn {
  color: var(--color-on-accent);
}

.av-nav-desktop .av-btn:hover {
  color: var(--color-on-accent);
  opacity: 1;
}

.av-menu-toggle {
  position: relative;
  z-index: 70;
  flex: 0 0 auto;
  width: var(--touch-min);
  height: var(--touch-min);
  max-inline-size: none;
  padding: 0;
  border: 0;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--motion-fast) ease;
}

.av-menu-toggle:hover,
.av-menu-toggle:focus-visible {
  background: color-mix(in srgb, var(--color-accent) 8%, transparent);
}

.av-menu-toggle__bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 1.25rem;
}

.av-menu-toggle__bars span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transform-origin: center;
  transition: transform var(--motion-base) var(--ease), opacity var(--motion-fast) ease;
}

body.is-nav-open .av-menu-toggle__bars span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.is-nav-open .av-menu-toggle__bars span:nth-child(2) {
  opacity: 0;
}

body.is-nav-open .av-menu-toggle__bars span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

#site-nav {
  position: fixed;
  inset: 0;
  height: 100dvh;
  z-index: 60;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  padding: calc(var(--header-height) + 1.5rem) var(--section-padding-x) 2rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--motion-menu) var(--ease), visibility 0s linear var(--motion-menu);
}

#site-nav[hidden] {
  display: none !important;
}

#site-nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}

#site-nav a {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 7vw, 2.5rem);
  font-weight: 600;
  color: var(--color-ink);
  min-height: var(--touch-min);
  display: inline-flex;
  align-items: center;
  opacity: 0;
  transform: translateY(0.75rem);
  transition: color var(--motion-fast) ease, background-color var(--motion-fast) ease,
    box-shadow var(--motion-fast) ease, transform var(--motion-menu) var(--ease),
    opacity var(--motion-menu) ease;
}

#site-nav.is-open a {
  opacity: 1;
  transform: translateY(0);
}

#site-nav.is-open a:nth-child(2) {
  transition-delay: 0s, 0s, 0s, 30ms, 30ms;
}

#site-nav.is-open a:nth-child(3) {
  transition-delay: 0s, 0s, 0s, 60ms, 60ms;
}

#site-nav.is-open a:nth-child(4) {
  transition-delay: 0s, 0s, 0s, 90ms, 90ms;
}

#site-nav.is-open a.av-btn:hover,
#site-nav.is-open a.av-btn:active {
  transition-delay: 0s;
}

#site-nav a:hover {
  color: var(--color-accent);
}

#site-nav .av-btn {
  margin-top: 1rem;
  align-self: flex-start;
  color: var(--color-on-accent);
}

.av-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-min);
  padding: 0.75rem 1.625rem;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--color-accent) 16%, transparent);
  transition: background-color var(--motion-fast) ease, box-shadow var(--motion-base) var(--ease),
    filter var(--motion-fast) ease, transform var(--motion-fast) var(--ease);
}

.av-btn:hover {
  filter: brightness(1.07);
  color: var(--color-on-accent);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--color-accent) 24%, transparent);
  transform: translateY(-1px);
}

.av-btn:active {
  filter: brightness(0.98);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--color-accent) 14%, transparent);
  transform: translateY(0);
}

.av-btn--compact {
  padding: 0.625rem 1.125rem;
  font-size: 0.90625rem;
  border-radius: var(--radius-sm);
}

.av-btn--footer {
  padding: 0.8rem 1.25rem;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
}

.av-page {
  padding-top: var(--header-height);
}

.av-hero {
  padding: clamp(1.5rem, 3vh, 2.5rem) 0;
  overflow: clip;
}

.av-hero__stage {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: center;
}

.av-hero__copy {
  min-width: 0;
  animation: arcvault-enter-copy var(--motion-enter) var(--ease) both;
}

.av-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-hero);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--color-ink);
  max-width: 14ch;
  overflow-wrap: normal;
  text-wrap: balance;
}

.av-hero__title span {
  color: var(--color-accent);
}

.av-hero__copy > p {
  margin-top: 1.25rem;
  font-size: var(--fs-lead);
  max-width: 48ch;
}

.av-hero__device {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 22rem);
  margin-inline: auto;
  animation: arcvault-enter-device calc(var(--motion-enter) + 80ms) var(--ease) 80ms both;
}

@keyframes arcvault-enter-copy {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
}

@keyframes arcvault-enter-device {
  from {
    opacity: 0;
    transform: translateY(1.25rem) scale(0.985);
  }
}

.av-hero__rings,
.av-vision__rings {
  position: absolute;
  inset: 0;
  overflow: clip;
  pointer-events: none;
}

.av-hero__rings span,
.av-vision__rings span {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  border: 1.5px solid color-mix(in srgb, var(--color-accent-soft) 24%, transparent);
  transform: translate(-50%, -50%);
  aspect-ratio: 1;
}

.av-hero__rings span:first-child {
  width: 86%;
}

.av-hero__rings span:last-child {
  width: 100%;
  border-color: color-mix(in srgb, var(--color-accent-soft) 13%, transparent);
}

.av-hero__device img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.av-form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.av-form-row input[type="email"] {
  flex: 1 1 15rem;
  min-width: 0;
  min-height: var(--touch-min);
  padding: 1rem 1.125rem;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: 1rem;
  transition: background-color var(--motion-fast) ease, border-color var(--motion-fast) ease,
    box-shadow var(--motion-base) var(--ease);
}

.av-form-row input[type="email"]::placeholder {
  color: var(--color-faint);
}

.av-form-row input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--focus-ring);
}

form.is-invalid .av-form-row input[type="email"] {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-error) 12%, transparent);
}

form.is-invalid .av-form-row input[type="email"]:focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-error) 18%, transparent);
}

.av-form-row .av-btn {
  flex: 0 0 auto;
}

.av-form-note {
  margin-top: 0.875rem;
  color: var(--color-faint);
  font-size: var(--fs-small);
}

.av-form-note [data-count] {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-muted);
}

.av-form-error {
  margin-top: 0.625rem;
  color: var(--color-error);
  font-size: var(--fs-small);
}

.av-form-error:not([hidden]) {
  animation: arcvault-state-in var(--motion-base) var(--ease) both;
}

.av-form-error[hidden] {
  display: none;
}

.av-waitlist-success {
  display: none;
  margin-top: 2rem;
  padding: 1.25rem 1.375rem;
  border-radius: 1rem;
  background: var(--color-dark-panel);
  gap: 0.875rem;
  align-items: flex-start;
  text-align: left;
}

.av-waitlist-success svg {
  flex: 0 0 auto;
  margin-top: 0.125rem;
}

.av-waitlist-success strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--color-on-accent);
}

.av-waitlist-success p {
  margin-top: 0.25rem;
  font-size: 0.90625rem;
  color: var(--color-on-dark-muted);
}

body.is-waitlisted [data-waitlist],
body.is-waitlisted .av-form-note {
  display: none;
}

body.is-waitlisted .av-waitlist-success {
  display: flex;
  animation: arcvault-state-in 360ms var(--ease) both;
}

@keyframes arcvault-state-in {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }
}

.av-diamond {
  display: inline-block;
  width: var(--diamond);
  height: var(--diamond);
  background: var(--color-accent);
  border-radius: 2px;
  transform: rotate(45deg);
}

.av-why {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  padding: var(--section-y-lg) 0 var(--section-y);
}

.av-section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-h2);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--color-ink);
  text-align: left;
  max-width: 22ch;
}

.av-section-title--on-dark {
  color: var(--color-bg);
}

.av-why__intro h2,
.av-features__intro h2,
.av-compare h2,
.av-hold h2,
.av-faq h2,
.av-vision h2,
.av-statement h2,
.av-reserve h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-h2);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.av-why__intro p,
.av-features__intro p {
  margin-top: 1.125rem;
  font-size: var(--fs-lead);
}

.av-why__intro {
  max-width: 40rem;
}

.av-why__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.75rem;
  align-items: stretch;
}

.av-why__lead {
  background: var(--color-dark-panel);
  border-radius: var(--radius-lg);
  padding: 2.125rem;
  color: var(--color-on-dark);
  min-height: 16.25rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 1rem;
  position: relative;
  overflow: hidden;
}

.av-why__lead::after {
  content: "";
  position: absolute;
  bottom: -8.75rem;
  right: -6.25rem;
  width: 18.75rem;
  height: 18.75rem;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.09);
  pointer-events: none;
}

.av-why__lead h3 {
  position: relative;
  font-size: clamp(1.75rem, 3.2vw, 2.35rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-on-accent);
  max-width: 12ch;
}

.av-why__lead p {
  position: relative;
  margin-top: 0;
  font-size: 0.9375rem;
  color: var(--color-on-dark-muted);
  max-width: 28ch;
}

.av-card h3,
.av-feature h3,
.av-hold-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
}

.av-card {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  height: 100%;
  transition: transform 0.3s var(--ease), box-shadow 0.3s ease, border-color 0.3s ease;
}

.av-card h3 {
  margin-top: 1.125rem;
  font-size: 1.1875rem;
}

.av-card p,
.av-feature p,
.av-hold-card p {
  margin-top: 0.5rem;
  font-size: var(--fs-card);
}

.av-card:hover,
.av-feature:hover,
.av-hold-card:hover {
  border-color: var(--color-hover-line);
  box-shadow: var(--shadow-card);
}

.av-vision {
  background: var(--color-dark);
  color: var(--color-bg);
  padding: var(--section-y-lg) 0;
}

.av-vision__grid {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.av-vision .av-section-title {
  max-width: 16ch;
}

.av-vision p {
  margin-top: 1.625rem;
  font-size: clamp(1rem, 1.9vw, 1.1875rem);
  color: color-mix(in srgb, var(--color-bg) 66%, transparent);
  max-width: var(--measure);
}

.av-vision p + p {
  margin-top: 1.125rem;
}

.av-vision__media {
  position: relative;
  width: min(100%, 28.75rem);
  margin-inline: auto;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.av-vision__rings span:first-child {
  width: 86%;
  border-color: var(--color-accent-soft);
  opacity: 0.7;
}

.av-vision__rings span:last-child {
  width: 100%;
  border-color: var(--color-accent-soft);
  opacity: 0.35;
}

.av-vision__media img {
  position: relative;
  z-index: 1;
  width: 78%;
  border-radius: 1rem;
}

.av-stat {
  background: var(--color-bg);
  border-block: 1px solid var(--color-line);
  padding: var(--section-y) var(--section-padding-x);
  display: grid;
  place-items: center;
}

.av-stat p {
  max-width: 55rem;
  text-align: center;
  font-size: clamp(1.25rem, 2.4vw, 1.5rem);
  font-weight: 500;
  line-height: 1.5;
  color: var(--color-stat);
}

.av-stat em {
  font-style: normal;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.av-features {
  background: var(--color-surface);
  padding: var(--section-y-lg) 0 var(--section-y);
  border-bottom: 1px solid var(--color-line);
}

.av-features__intro {
  max-width: 40rem;
}

.av-features__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 3rem;
}

.av-feature {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 1.875rem;
  height: 100%;
  transition: transform 0.3s var(--ease), box-shadow 0.3s ease, border-color 0.3s ease;
}

.av-feature h3 {
  margin-top: 1rem;
  font-size: 1.1875rem;
}

.av-compare {
  padding: var(--section-y-lg) 0 var(--section-y);
}

.av-compare h2 {
  max-width: 18ch;
}

.av-compare__grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.75rem;
}

.av-lane {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  height: 100%;
}

.av-lane--cold {
  background: var(--color-dark-panel);
  border: 0;
  position: relative;
  overflow: hidden;
}

.av-lane--cold::after {
  content: "";
  position: absolute;
  top: -7.5rem;
  right: -6.25rem;
  width: 17.5rem;
  height: 17.5rem;
  border-radius: 50%;
  border: 1.5px solid color-mix(in srgb, var(--color-accent) 40%, transparent);
  pointer-events: none;
}

.av-lane__kicker {
  position: relative;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-faint);
  letter-spacing: 0.02em;
}

.av-lane--cold .av-lane__kicker {
  color: var(--color-accent);
}

.av-lane h3 {
  position: relative;
  margin-top: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.625rem;
  color: var(--color-ink);
}

.av-lane--cold h3 {
  color: var(--color-on-accent);
}

.av-lane ul {
  position: relative;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
}

.av-lane li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.875rem;
  align-items: start;
  font-size: 0.96875rem;
}

.av-lane--hot li::before {
  content: "";
  width: 0.875rem;
  height: 2px;
  margin-top: 0.7rem;
  background: var(--color-hot-mark);
  border-radius: 2px;
}

.av-lane--cold li {
  color: var(--color-on-dark-soft);
}

.av-lane--cold li::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-top: 0.4rem;
  background: var(--color-accent);
  border-radius: 2px;
  transform: rotate(45deg);
}

.av-statement {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  padding: var(--section-y-lg) 0;
  position: relative;
  overflow: hidden;
}

.av-statement::after {
  content: "";
  position: absolute;
  top: -13.75rem;
  right: -11.25rem;
  width: 35rem;
  height: 35rem;
  border-radius: 50%;
  border: 1.5px solid color-mix(in srgb, var(--color-accent) 16%, transparent);
  pointer-events: none;
}

.av-statement .av-section-title {
  position: relative;
  max-width: 18ch;
}

.av-statement p {
  position: relative;
  margin-top: 1.25rem;
  max-width: 58ch;
  font-size: var(--fs-lead);
}

.av-hold {
  padding: var(--section-y-lg) 0 var(--section-y);
}

.av-hold__grid {
  display: grid;
  gap: 1.375rem;
  margin-top: 2.75rem;
}

.av-hold-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  height: 100%;
  transition: transform 0.3s var(--ease), box-shadow 0.3s ease, border-color 0.3s ease;
}

.av-hold-card h3 {
  margin-top: 1.125rem;
  font-size: 1.1875rem;
}

.av-hold-card p {
  font-size: var(--fs-card);
}

.av-faq {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  padding: var(--section-y-lg) 0 var(--section-y);
}

.av-faq__list {
  margin-top: 2.25rem;
  border-top: 1px solid var(--color-line);
}

.av-faq details {
  border-bottom: 1px solid var(--color-line);
  transition: background-color var(--motion-base) ease, border-color var(--motion-base) ease;
}

.av-faq details[open] {
  background: color-mix(in srgb, var(--color-accent) 3%, transparent);
  border-color: var(--color-hover-line);
}

.av-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.5rem 0;
  min-height: var(--touch-min);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
  transition: color var(--motion-fast) ease;
}

.av-faq summary:hover,
.av-faq summary:focus-visible {
  color: var(--color-accent);
}

.av-faq summary::-webkit-details-marker {
  display: none;
}

.av-faq-plus {
  flex: 0 0 auto;
  position: relative;
  width: 18px;
  height: 18px;
  transition: transform 320ms var(--ease);
}

.av-faq-plus::before,
.av-faq-plus::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
  border-radius: 2px;
}

.av-faq-plus::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.av-faq-plus::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

.av-faq-plus::before,
.av-faq-plus::after {
  transition: background-color var(--motion-fast) ease;
}

.av-faq summary:hover .av-faq-plus::before,
.av-faq summary:hover .av-faq-plus::after,
.av-faq summary:focus-visible .av-faq-plus::before,
.av-faq summary:focus-visible .av-faq-plus::after {
  background: var(--color-ink);
}

details[open] .av-faq-plus {
  transform: rotate(45deg);
}

.av-faq details p {
  padding: 0 0 1.5rem;
  font-size: 1rem;
  max-width: 66ch;
}

.av-faq details[open] p {
  animation: arcvault-faq-in var(--motion-base) var(--ease) both;
}

@keyframes arcvault-faq-in {
  from {
    opacity: 0;
    transform: translateY(-0.375rem);
  }
}

@supports (interpolate-size: allow-keywords) {
  .av-faq {
    interpolate-size: allow-keywords;
  }

  .av-faq details::details-content {
    block-size: 0;
    overflow: clip;
    opacity: 0;
    transition: block-size 320ms var(--ease), opacity var(--motion-base) ease;
  }

  .av-faq details[open]::details-content {
    block-size: auto;
    opacity: 1;
  }
}

.av-reserve {
  padding: var(--section-y-lg) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.av-reserve::after {
  content: "";
  position: absolute;
  bottom: -26.25rem;
  left: 50%;
  transform: translateX(-50%);
  width: 56.25rem;
  height: 56.25rem;
  border-radius: 50%;
  border: 1.5px solid color-mix(in srgb, var(--color-accent) 18%, transparent);
  pointer-events: none;
}

.av-reserve__inner {
  position: relative;
  max-width: 40rem;
  margin-inline: auto;
}

.av-reserve .av-section-title {
  text-align: center;
  max-width: none;
}

.av-reserve > .av-reserve__inner > p,
.av-reserve__inner > p {
  margin-top: 1.125rem;
  font-size: var(--fs-lead);
}

.av-reserve .av-form-row {
  justify-content: center;
  max-width: 32.5rem;
  margin-inline: auto;
}

.av-reserve .av-waitlist-success {
  max-width: 30rem;
  margin-inline: auto;
  align-items: center;
}

.av-site-footer {
  background: var(--color-dark);
  color: var(--color-on-accent);
  padding: var(--section-y) 0 1.75rem;
}

.av-site-footer .av-brand,
.av-site-footer .av-brand:hover,
.av-site-footer .av-brand__name,
.av-site-footer .av-brand:hover .av-brand__name {
  color: var(--color-on-accent);
}

.av-site-footer .av-brand__name {
  font-size: 1.875rem;
}

.av-footer__top {
  display: grid;
  gap: 2.5rem;
}

.av-footer__brand p {
  margin-top: 1rem;
  max-width: 34ch;
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--color-footer-muted);
}

.av-footer__cta h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1875rem;
  color: var(--color-on-accent);
}

.av-footer__cta p {
  margin-top: 0.375rem;
  font-size: 0.84375rem;
  color: var(--color-footer-muted);
}

.av-footer-form .av-form-row {
  margin-top: 1rem;
  gap: 0.625rem;
}

.av-footer-form input[type="email"] {
  background: var(--color-input-dark);
  border-color: var(--color-input-dark-line);
  color: var(--color-on-accent);
  padding: 0.8125rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

.av-footer-form input[type="email"]:focus {
  border-color: var(--color-accent-soft);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent-soft) 22%, transparent);
}

.av-footer-form .av-form-error {
  color: var(--color-error-on-dark);
}

.av-footer-success {
  display: none;
  margin-top: 1rem;
  align-items: center;
  gap: 0.625rem;
  padding: 0.8125rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-success-glow);
  border: 1px solid var(--color-success-line);
  font-size: var(--fs-small);
}

body.is-waitlisted .av-footer-success {
  display: flex;
  animation: arcvault-state-in 360ms var(--ease) both;
}

.av-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(2rem, 6vw, 5rem);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.av-footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.av-footer__col h3 {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-footer-label);
}

.av-footer__col a {
  color: var(--color-footer-link);
  font-size: 0.90625rem;
  min-height: var(--touch-min);
  display: inline-flex;
  align-items: center;
}

.av-footer__col a:hover {
  color: var(--color-on-accent);
}

.av-footer__legal {
  margin-top: clamp(2.25rem, 4vw, 3rem);
  padding-top: 1.375rem;
  border-top: 1px solid var(--color-footer-line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem 1.5rem;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--color-footer-copy);
}

@media (min-width: 577px) {
  .av-hero__device {
    width: min(100%, 26rem);
  }

  .av-why__grid,
  .av-features__grid,
  .av-compare__grid {
    grid-template-columns: 1fr 1fr;
  }

  .av-why__lead {
    grid-column: 1 / -1;
  }
}

@media (max-width: 576px) {
  .av-form-row input[type="email"],
  .av-footer-form input[type="email"] {
    font-size: 1rem;
  }
}

@media (min-width: 768px) {
  .av-menu-toggle {
    display: none;
  }

  #site-nav {
    display: none !important;
  }

  .av-nav-desktop {
    display: flex;
  }

  .av-hero__stage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    column-gap: clamp(1.25rem, 4vw, 3.5rem);
    min-height: calc(100vh - var(--header-height) - 3rem);
    min-height: calc(100dvh - var(--header-height) - 3rem);
  }

  .av-hero {
    min-height: calc(100vh - var(--header-height));
    min-height: calc(100dvh - var(--header-height));
    display: grid;
    align-items: center;
  }

  .av-hero__device {
    width: 100%;
    max-width: 38rem;
    margin-inline: 0 0;
    justify-self: end;
  }

  .av-hero__device img {
    max-height: min(72vh, 42rem);
    max-height: min(72dvh, 42rem);
  }

  .av-footer__top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 993px) {
  .av-hero__device {
    max-width: 44rem;
  }

  .av-hero__device img {
    max-height: min(78vh, 48rem);
    max-height: min(78dvh, 48rem);
  }

  .av-vision__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

  .av-why__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: 1fr 1fr;
  }

  .av-why__lead {
    grid-column: 1;
    grid-row: 1 / -1;
    min-height: 0;
  }

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

@media (min-width: 1441px) {
  .av-wrap,
  .av-wrap--narrow,
  .av-wrap--faq,
  .av-site-header__inner {
    width: min(100% - 4rem, var(--container));
  }

  .av-wrap--narrow {
    width: min(100% - 4rem, var(--container-narrow));
  }

  .av-wrap--faq {
    width: min(100% - 4rem, 46rem);
  }
}

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

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

:where(html) { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
:where(body) { min-width: 320px; line-height: var(--ui-leading-body); }
:where(main, header, footer, section, article, nav, form, .av-container, .av-wrap, [class*="grid"], [class*="content"]) { min-width: 0; }
:where(img, svg, video, canvas) { max-inline-size: 100%; }
:where(.av-logo__mark, .av-brand__mark, .av-brand-mark, .av-logo-mark) { flex: 0 0 auto; display: block; vertical-align: middle; }
:where(h1, h2) { text-wrap: balance; }
:where(h3, h4, h5, h6) { text-wrap: pretty; }
:where(h1:not([class])) { font-size: var(--ui-type-h1); line-height: var(--ui-leading-heading); letter-spacing: var(--ui-tracking-heading); }
:where(h2:not([class])) { font-size: var(--ui-type-h2); line-height: var(--ui-leading-heading); letter-spacing: var(--ui-tracking-heading); }
:where(h3:not([class])) { font-size: var(--ui-type-h3); line-height: 1.2; }
:where(p, li) { overflow-wrap: anywhere; }
:where(a, button, input, select, textarea, summary) { -webkit-tap-highlight-color: transparent; }
:where(a, button) { transition: color var(--ui-duration) var(--ui-ease), background-color var(--ui-duration) var(--ui-ease), border-color var(--ui-duration) var(--ui-ease), box-shadow var(--ui-duration) var(--ui-ease), transform var(--ui-duration) var(--ui-ease), opacity var(--ui-duration) var(--ui-ease); }
:where(a, button, input, select, textarea, summary):focus-visible { outline: 2px solid var(--ui-focus-color); outline-offset: 3px; }
:where(section[id]) { scroll-margin-top: calc(var(--header-height, var(--header-h, 4rem)) + var(--ui-space-4)); }
@media (max-width: 767px) {
  :where(.av-site-header__inner, .av-site-header__bar, .av-header-inner) { gap: var(--ui-space-4); }
  :where(.av-btn, button, input, select, textarea) { max-inline-size: 100%; }
}