:root {
  color-scheme: dark;
  --bg: #08111a;
  --bg-soft: #0c1924;
  --panel: #101f2d;
  --panel-strong: #142b3d;
  --text: #edf7ff;
  --muted: #a9bdd0;
  --line: rgba(148, 198, 235, 0.22);
  --line-hot: rgba(120, 219, 255, 0.46);
  --blue: #47b8ff;
  --cyan: #65e1ff;
  --green: #69e6a2;
  --steel: #9fb8ca;
  --chrome: #d9f5ff;
  --ink: #03080d;
  --white: #ffffff;
  --glass: rgba(14, 30, 43, 0.52);
  --glass-strong: rgba(18, 41, 58, 0.72);
  --shadow: 0 28px 100px rgba(0, 0, 0, 0.46);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 28px),
    radial-gradient(circle at top left, rgba(71, 184, 255, 0.24), transparent 34rem),
    radial-gradient(circle at 85% 15%, rgba(105, 230, 162, 0.14), transparent 28rem),
    radial-gradient(circle at 50% 100%, rgba(35, 86, 119, 0.26), transparent 36rem),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

body::before {
  background:
    linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent),
    repeating-linear-gradient(100deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 7px);
  content: "";
  inset: 0;
  mix-blend-mode: screen;
  opacity: 0.32;
  pointer-events: none;
  position: fixed;
  z-index: -1;
}

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

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

.site-header {
  align-items: center;
  backdrop-filter: blur(22px) saturate(1.35);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025)),
    rgba(8, 17, 26, 0.68);
  border-bottom: 1px solid transparent;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.24);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  left: 0;
  padding: 0.9rem clamp(1rem, 4vw, 4rem);
  position: sticky;
  right: 0;
  top: 0;
  z-index: 20;
}

.site-header[data-elevated="true"] {
  border-color: var(--line-hot);
}

.brand {
  align-items: center;
  display: flex;
  font-weight: 900;
  gap: 0.65rem;
  letter-spacing: 0;
}

.brand img {
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 50%;
  height: 2.45rem;
  object-fit: cover;
  object-position: center 34%;
  box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.22), 0 0 26px rgba(71, 184, 255, 0.28);
  width: 2.45rem;
}

.nav-links,
.site-footer nav {
  align-items: center;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.92rem;
  gap: clamp(0.75rem, 2vw, 1.5rem);
}

.nav-links a:hover,
.site-footer a:hover {
  color: var(--white);
}

.header-cta,
.button {
  align-items: center;
  border-radius: 0.55rem;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.75rem 1rem;
  position: relative;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.header-cta:hover,
.button:hover,
.tab:hover,
.community-links a:hover {
  transform: translateY(-2px);
}

.header-cta,
.button.primary {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.72), transparent 32%),
    linear-gradient(135deg, var(--blue), var(--cyan) 56%, #f5fdff);
  box-shadow: 0 14px 42px rgba(71, 184, 255, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  color: var(--ink);
}

.button.secondary,
.button.ghost {
  border: 1px solid var(--line);
  color: var(--text);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.075);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.button.ghost {
  background: transparent;
}

.hero {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(0, 1.02fr) minmax(20rem, 0.98fr);
  margin: 0 auto;
  max-width: 1220px;
  min-height: calc(100vh - 4.5rem);
  padding: clamp(3rem, 7vw, 7rem) clamp(1rem, 4vw, 4rem) clamp(2rem, 6vw, 5rem);
  position: relative;
}

.hero::before {
  background:
    radial-gradient(circle, rgba(101, 225, 255, 0.28), transparent 58%),
    conic-gradient(from 120deg, transparent, rgba(71, 184, 255, 0.18), transparent 42%);
  border-radius: 50%;
  content: "";
  filter: blur(12px);
  height: 38rem;
  position: absolute;
  right: 1%;
  top: 8%;
  width: 38rem;
  z-index: -2;
}

.hero::after {
  border: 1px solid rgba(101, 225, 255, 0.34);
  border-radius: 50%;
  box-shadow:
    inset 0 0 34px rgba(71, 184, 255, 0.1),
    0 0 80px rgba(71, 184, 255, 0.14);
  content: "";
  height: 28rem;
  position: absolute;
  right: 6%;
  top: 17%;
  width: 28rem;
  z-index: -1;
}

.hero-copy {
  align-self: center;
}

.eyebrow {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  margin: 0 0 0.8rem;
  text-transform: uppercase;
}

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

h1 {
  background: linear-gradient(110deg, var(--white), var(--chrome) 36%, var(--blue) 66%, var(--white));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(3rem, 7vw, 6.8rem);
  letter-spacing: 0;
  line-height: 0.95;
  margin-bottom: 1.25rem;
  max-width: 11ch;
}

h2 {
  font-size: clamp(2rem, 4vw, 4.4rem);
  letter-spacing: 0;
  line-height: 1;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  letter-spacing: 0;
  line-height: 1.18;
  margin-bottom: 0.55rem;
}

.hero-text,
.section p,
.security-copy p,
.premium p {
  color: var(--muted);
  font-size: 1rem;
  max-width: 42rem;
}

.hero-text {
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions,
.inline-actions,
.community-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.7rem;
}

.hero-stats {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 2rem 0 0;
  max-width: 34rem;
}

.hero-stats div {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  padding: 0.9rem;
  backdrop-filter: blur(16px);
  overflow: hidden;
  position: relative;
}

.hero-stats div:hover {
  border-color: var(--line-hot);
  box-shadow:
    0 18px 46px rgba(71, 184, 255, 0.28),
    0 0 34px rgba(101, 225, 255, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}

.hero-stats div::before {
  background: radial-gradient(circle at var(--spot-x, 50%) var(--spot-y, 50%), rgba(143, 228, 255, 0.35), transparent 58%);
  content: "";
  inset: 0;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  transition: opacity 180ms ease;
}

.hero-stats div:hover::before {
  opacity: 1;
}

.hero-stats div {
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
  padding-top: 0.9rem;
}

.hero-stats dt {
  color: var(--white);
  font-size: 1.8rem;
  font-weight: 900;
}

.hero-stats dd {
  color: var(--muted);
  margin: 0;
}

.hero-visual {
  align-self: center;
  background:
    radial-gradient(circle at var(--spot-x, 55%) var(--spot-y, 36%), rgba(255, 255, 255, 0.38), transparent 18rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.18), rgba(79, 184, 230, 0.08) 36%, rgba(4, 12, 19, 0.78)),
    linear-gradient(115deg, rgba(255, 255, 255, 0.16) 0 1px, transparent 1px 18px);
  border: 1px solid rgba(218, 246, 255, 0.36);
  border-radius: 1.35rem;
  box-shadow:
    0 34px 120px rgba(0, 0, 0, 0.48),
    0 0 0 1px rgba(71, 184, 255, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.38),
    inset 0 -22px 70px rgba(0, 0, 0, 0.32);
  overflow: hidden;
  padding: 0.55rem;
  position: relative;
  transform-style: preserve-3d;
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    background 220ms ease;
}

.hero-visual:hover {
  border-color: rgba(227, 250, 255, 0.68);
  box-shadow:
    0 38px 130px rgba(0, 0, 0, 0.54),
    0 0 52px rgba(71, 184, 255, 0.36),
    0 0 0 1px rgba(255, 255, 255, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.58),
    inset 0 -24px 80px rgba(0, 0, 0, 0.36);
}

.hero-visual > img {
  border: 1px solid rgba(219, 246, 255, 0.22);
  border-radius: 1rem;
  box-shadow:
    var(--shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 0 0 1px rgba(71, 184, 255, 0.12);
  min-height: 28rem;
  object-fit: cover;
  width: 100%;
}

.hero-visual::before {
  background:
    radial-gradient(circle at var(--spot-x, 50%) var(--spot-y, 50%), rgba(255, 255, 255, 0.5), transparent 13rem),
    linear-gradient(120deg, transparent 12%, rgba(255, 255, 255, 0.4), transparent 46%);
  border-radius: 1.35rem;
  content: "";
  inset: 0;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  transition: opacity 180ms ease;
  z-index: 2;
}

.hero-visual::after {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.07), transparent 18%, rgba(255, 255, 255, 0.1) 20%, transparent 23%),
    repeating-linear-gradient(98deg, rgba(255, 255, 255, 0.07) 0 1px, transparent 1px 9px);
  content: "";
  inset: 0.55rem;
  mix-blend-mode: screen;
  opacity: 0.42;
  pointer-events: none;
  position: absolute;
  z-index: 1;
}

.hero-visual:hover::before {
  opacity: 1;
}

.terminal-card {
  backdrop-filter: blur(20px) saturate(1.35);
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.045)),
    rgba(3, 8, 13, 0.66);
  border: 1px solid rgba(101, 225, 255, 0.44);
  border-radius: 0.75rem;
  bottom: 1rem;
  box-shadow: var(--shadow);
  left: 1rem;
  max-width: min(21rem, calc(100% - 2rem));
  padding: 1rem;
  position: absolute;
  z-index: 3;
}

.terminal-card p {
  color: var(--text);
  font-family: "SFMono-Regular", Consolas, monospace;
  margin-bottom: 0.2rem;
}

.terminal-card strong {
  color: var(--green);
  display: block;
}

.pulse {
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(105, 230, 162, 0.7);
  display: inline-block;
  height: 0.65rem;
  margin-right: 0.3rem;
  width: 0.65rem;
}

.chain-strip {
  backdrop-filter: blur(16px);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.02), rgba(71, 184, 255, 0.09), rgba(255, 255, 255, 0.02));
  border-block: 1px solid var(--line);
  overflow: hidden;
  padding: 1rem 0;
}

.marquee {
  animation: drift 28s linear infinite;
  display: flex;
  gap: 2rem;
  min-width: max-content;
}

.marquee span {
  background: linear-gradient(90deg, var(--steel), var(--white), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}

@keyframes drift {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.section {
  margin: 0 auto;
  max-width: 1220px;
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 4vw, 4rem);
}

.intro-grid,
.premium,
.docs-community,
.security {
  display: grid;
  gap: clamp(1.5rem, 4vw, 4rem);
  grid-template-columns: minmax(0, 0.95fr) minmax(18rem, 1.05fr);
}

.mock-phone,
.price-card,
.community-card,
.product-panel,
.security-grid article,
.feature-grid article {
  backdrop-filter: blur(22px) saturate(1.35);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.035) 44%, rgba(71, 184, 255, 0.055)),
    var(--glass);
  border: 1px solid rgba(202, 236, 255, 0.22);
  border-radius: 0.9rem;
  box-shadow:
    0 22px 70px rgba(0, 0, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(71, 184, 255, 0.08);
  position: relative;
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    background 220ms ease;
  overflow: hidden;
}

.mock-phone::before,
.price-card::before,
.community-card::before,
.product-panel::before,
.security-grid article::before,
.feature-grid article::before {
  background:
    radial-gradient(circle at var(--spot-x, 50%) var(--spot-y, 50%), rgba(122, 219, 255, 0.38), transparent 10rem),
    linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.18), transparent);
  border-radius: inherit;
  content: "";
  inset: 0;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  transition: opacity 220ms ease;
}

.mock-phone:hover,
.price-card:hover,
.community-card:hover,
.product-panel:hover,
.security-grid article:hover,
.feature-grid article:hover {
  border-color: var(--line-hot);
  box-shadow:
    0 26px 90px rgba(0, 0, 0, 0.42),
    0 0 54px rgba(71, 184, 255, 0.28),
    0 0 18px rgba(101, 225, 255, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-4px);
}

.mock-phone:hover::before,
.price-card:hover::before,
.community-card:hover::before,
.product-panel:hover::before,
.security-grid article:hover::before,
.feature-grid article:hover::before {
  opacity: 1;
}

.mock-phone {
  justify-self: end;
  max-width: 25rem;
  min-height: 32rem;
  padding: 1.25rem;
  width: 100%;
}

.phone-top {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  height: 0.35rem;
  margin: 0 auto 2rem;
  width: 5rem;
}

.message,
.trade-panel,
.panel-screen {
  border-radius: 0.65rem;
  padding: 1rem;
}

.message {
  margin-bottom: 0.85rem;
  width: fit-content;
}

.message.sent {
  background: var(--blue);
  color: var(--ink);
  margin-left: auto;
}

.message.received,
.trade-panel,
.panel-screen {
  background: rgba(3, 8, 13, 0.5);
  border: 1px solid rgba(168, 222, 255, 0.24);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.trade-panel {
  margin-top: 4rem;
}

.trade-panel span,
.price-card span,
.trade-panel small {
  color: var(--muted);
  display: block;
}

.trade-panel strong {
  color: var(--green);
  display: block;
  font-size: 3rem;
  line-height: 1;
  margin: 0.6rem 0;
}

.section-heading {
  margin-bottom: 2rem;
  max-width: 52rem;
}

.feature-grid,
.security-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-grid article,
.security-grid article {
  min-height: 13rem;
  padding: 1.15rem;
}

.feature-grid span {
  color: var(--cyan);
  display: block;
  font-weight: 900;
  margin-bottom: 1.8rem;
}

.product-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.tab {
  backdrop-filter: blur(14px);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.025)),
    rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(202, 236, 255, 0.2);
  border-radius: 0.55rem;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
}

.tab.is-active {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(97, 208, 255, 0.7)),
    var(--white);
  box-shadow: 0 14px 42px rgba(71, 184, 255, 0.25);
  color: var(--ink);
}

.product-panel {
  align-items: center;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.8fr);
  min-height: 22rem;
  padding: clamp(1.25rem, 4vw, 3rem);
}

.panel-screen {
  color: var(--cyan);
  font-family: "SFMono-Regular", Consolas, monospace;
  line-height: 1.9;
  min-height: 11rem;
}

.security {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.07), rgba(71, 184, 255, 0.08), rgba(105, 230, 162, 0.04)),
    rgba(8, 17, 26, 0.34);
  border-block: 1px solid var(--line);
  max-width: none;
}

.security > * {
  max-width: 36rem;
}

.security-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 50rem;
}

.premium {
  align-items: center;
}

.price-card {
  justify-self: end;
  max-width: 25rem;
  padding: 1.4rem;
  width: 100%;
}

.price-card strong {
  display: block;
  font-size: 4.5rem;
  letter-spacing: 0;
  line-height: 1;
  margin: 0.6rem 0 0.2rem;
}

.price-card .button {
  margin-top: 1.4rem;
  width: 100%;
}

.accordion {
  border-top: 1px solid var(--line);
  margin-top: 1.5rem;
}

.accordion button {
  align-items: center;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  cursor: pointer;
  display: flex;
  font: inherit;
  font-weight: 900;
  justify-content: space-between;
  min-height: 4rem;
  padding: 1rem 0;
  text-align: left;
  width: 100%;
}

.accordion button::after {
  content: "+";
  color: var(--cyan);
  font-size: 1.5rem;
}

.accordion button[aria-expanded="true"]::after {
  content: "-";
}

.accordion div {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}

.community-card {
  overflow: hidden;
}

.community-card img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 28%;
  width: 100%;
}

.community-card h2,
.community-card p,
.community-links {
  margin-left: 1.25rem;
  margin-right: 1.25rem;
}

.community-card h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-top: 1.25rem;
}

.community-links {
  margin-bottom: 1.25rem;
}

.community-links a {
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  color: var(--cyan);
  font-weight: 800;
  padding: 0.65rem 0.85rem;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding: 2rem clamp(1rem, 4vw, 4rem);
}

.site-footer p {
  color: var(--muted);
  margin: 0.2rem 0 0;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero,
  .intro-grid,
  .premium,
  .docs-community,
  .security,
  .product-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    max-width: 12ch;
  }

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

  .mock-phone,
  .price-card {
    justify-self: stretch;
    max-width: none;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding-inline: 0.85rem;
  }

  .header-cta {
    min-height: 2.4rem;
    padding: 0.55rem 0.75rem;
  }

  .hero-stats,
  .feature-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual > img {
    min-height: 20rem;
  }

  .terminal-card {
    position: static;
    margin-top: 1rem;
    max-width: none;
  }
}

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

/* ARC identity */
.brand > span {
  display: grid;
  line-height: 1;
}

.brand small {
  color: var(--cyan);
  font-size: 0.52rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-top: 0.32rem;
  text-transform: uppercase;
}

.hero h1 > span {
  color: var(--cyan);
  display: block;
}

.marquee .arc-chain {
  background: var(--green);
  border-radius: 0.3rem;
  color: #071014;
  font-weight: 900;
  padding: 0.45rem 0.7rem;
}

.arc-focus {
  align-items: center;
  background:
    linear-gradient(110deg, rgba(105, 230, 162, 0.12), transparent 48%),
    rgba(5, 13, 18, 0.74);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(9rem, 0.55fr) minmax(18rem, 1.15fr) minmax(16rem, 0.9fr);
  max-width: none;
  padding-inline: max(1.5rem, calc((100vw - 1200px) / 2));
}

.arc-mark {
  color: var(--green);
  font-size: clamp(4.5rem, 10vw, 9rem);
  font-weight: 900;
  line-height: 0.8;
}

.arc-copy h2 {
  margin-bottom: 1rem;
}

.arc-values {
  border-left: 1px solid var(--line);
  display: grid;
  gap: 1.25rem;
  padding-left: clamp(1.5rem, 4vw, 3rem);
}

.arc-values div {
  display: grid;
  gap: 0.25rem;
}

.arc-values strong {
  color: var(--text);
  font-size: 0.96rem;
}

.arc-values span {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .arc-focus {
    grid-template-columns: 1fr 2fr;
  }

  .arc-values {
    border-left: 0;
    border-top: 1px solid var(--line);
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, 1fr);
    padding-left: 0;
    padding-top: 1.5rem;
  }
}

@media (max-width: 620px) {
  .brand small {
    display: none;
  }

  .arc-focus {
    grid-template-columns: 1fr;
  }

  .arc-mark {
    font-size: 4.75rem;
  }

  .arc-values {
    grid-column: auto;
    grid-template-columns: 1fr;
  }
}

/* blarc.tech refresh */
code {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  color: var(--cyan);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
  padding: 0.05rem 0.35rem;
}

.section p a,
.steps a {
  color: var(--cyan);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
}

.hero-points li {
  backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  color: var(--chrome);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 0.45rem 0.9rem;
}

.terminal-card p {
  font-family: inherit;
  font-weight: 800;
}

.menu-grid {
  display: grid;
  gap: 0.45rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0.7rem 0;
}

.menu-grid span,
.tap-row span {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(168, 222, 255, 0.26);
  border-radius: 0.5rem;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 0.5rem 0.6rem;
  text-align: center;
}

.terminal-card strong {
  font-size: 0.9rem;
}

.tap-row {
  display: grid;
  gap: 0.45rem;
  grid-auto-columns: minmax(0, 1fr);
  grid-auto-flow: column;
  margin-bottom: 0.45rem;
}

.tap-row .is-picked {
  background: rgba(71, 184, 255, 0.32);
  border-color: var(--line-hot);
}

.tap-row .confirm {
  background: rgba(105, 230, 162, 0.18);
  border-color: rgba(105, 230, 162, 0.5);
}

.mock-phone .trade-panel {
  margin-top: 1.4rem;
}

.mock-phone .trade-panel strong {
  font-size: 2.4rem;
}

.panel-image {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  box-shadow: var(--shadow);
  width: 100%;
}

.steps {
  counter-reset: none;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.steps li {
  backdrop-filter: blur(22px) saturate(1.35);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.035) 44%, rgba(71, 184, 255, 0.055)),
    var(--glass);
  border: 1px solid rgba(202, 236, 255, 0.22);
  border-radius: 0.9rem;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  padding: 1.15rem;
  transition: transform 220ms ease, border-color 220ms ease;
}

.steps li:hover {
  border-color: var(--line-hot);
}

.steps span {
  align-items: center;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 50%;
  color: var(--ink);
  display: inline-flex;
  font-weight: 900;
  height: 2.2rem;
  justify-content: center;
  margin-bottom: 1rem;
  width: 2.2rem;
}

.guide-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.5rem;
}

.guide-grid img {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.32);
  object-fit: cover;
  width: 100%;
}

.site-footer .legal {
  flex-basis: 100%;
  font-size: 0.82rem;
  max-width: 60rem;
}

@media (max-width: 980px) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 620px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

.panel-image {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 40%;
}

/* October polish: calmer depth, clearer actions, and denser mobile navigation. */
:root {
  --amber: #65e1ff;
  --coral: #ff7a68;
  --surface: rgba(10, 22, 31, 0.88);
  --surface-raised: rgba(17, 34, 45, 0.9);
}

body {
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 34px),
    radial-gradient(circle at 12% 8%, rgba(71, 184, 255, 0.2), transparent 28rem),
    radial-gradient(circle at 86% 24%, rgba(105, 230, 162, 0.1), transparent 24rem),
    radial-gradient(circle at 55% 82%, rgba(105, 230, 162, 0.1), transparent 30rem),
    #071016;
}

body::before { opacity: 0.18; }
::selection { background: var(--amber); color: var(--ink); }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 4px; }

.site-header { background: rgba(7, 16, 22, 0.86); min-height: 4.5rem; }
.nav-links a { padding: 0.45rem 0; position: relative; }
.nav-links a::after {
  background: linear-gradient(90deg, var(--cyan), var(--amber));
  bottom: 0;
  content: "";
  height: 2px;
  left: 0;
  position: absolute;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
  width: 100%;
}
.nav-links a:hover::after,
.nav-links a[aria-current="true"]::after { transform: scaleX(1); }

.header-cta,
.button { border-radius: 0.5rem; min-height: 3rem; }
.header-cta,
.button.primary {
  background: linear-gradient(135deg, #8ee9ff, #47b8ff 58%, #b6f5ff);
  box-shadow: 0 12px 34px rgba(71, 184, 255, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.72);
}
.header-cta:hover,
.button.primary:hover { box-shadow: 0 16px 42px rgba(71, 184, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.8); }
.button.secondary:hover,
.button.ghost:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(105, 230, 162, 0.55); }

.hero {
  min-height: calc(100svh - 10rem);
  padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: clamp(2rem, 4vw, 3.5rem);
}
.hero::before { opacity: 0.72; }
.hero::after { border-color: rgba(105, 230, 162, 0.24); }
h1 {
  background: linear-gradient(105deg, var(--white), var(--chrome) 42%, #8ee9ff 72%, var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  font-size: clamp(3.2rem, 5.5vw, 5rem);
  line-height: 0.98;
}
.hero-text { line-height: 1.65; max-width: 38rem; }
.hero-points li { background: rgba(7, 16, 22, 0.7); border-radius: 0.45rem; padding: 0.55rem 0.8rem; }
.hero-points li::before { color: var(--green); content: "✓"; margin-right: 0.45rem; }

.hero-visual,
.mock-phone,
.community-card,
.product-panel,
.security-grid article,
.feature-grid article,
.steps li { border-radius: 0.5rem; }
.hero-visual { background: linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(71, 184, 255, 0.06) 42%, rgba(5, 12, 17, 0.92)); }
.hero-visual > img,
.panel-image,
.guide-grid img { border-radius: 0.4rem; }
.hero-visual > img { height: min(23rem, 52svh); min-height: 0; }
.terminal-card { background: rgba(5, 12, 17, 0.88); border-color: rgba(142, 233, 255, 0.5); border-radius: 0.5rem; }
.menu-grid span,
.tap-row span { border-radius: 0.4rem; }

.chain-strip { border-color: rgba(105, 230, 162, 0.2); padding: 0.9rem 0; }
.marquee span:nth-child(3n + 2) {
  background: linear-gradient(90deg, var(--amber), var(--white));
  -webkit-background-clip: text;
  background-clip: text;
}
.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); }
.section-heading { margin-bottom: 2.5rem; }
.feature-grid,
.steps,
.security-grid { gap: 0.85rem; }
.feature-grid article,
.security-grid article,
.steps li {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.018)), var(--surface);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.26), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.feature-grid article:nth-child(3n + 2) > span { color: var(--amber); }
.feature-grid article p,
.steps li p,
.security-grid article p { font-size: 0.94rem; line-height: 1.6; }
.steps span { background: var(--amber); border-radius: 0.35rem; }
.security {
  background:
    linear-gradient(115deg, rgba(71, 184, 255, 0.09), rgba(105, 230, 162, 0.045) 48%, rgba(105, 230, 162, 0.06)),
    rgba(5, 13, 18, 0.7);
}
.accordion button { min-height: 4.5rem; transition: color 160ms ease, padding 160ms ease; }
.accordion button:hover { color: var(--amber); padding-left: 0.35rem; }
.accordion button::after {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  flex: 0 0 2rem;
  height: 2rem;
  justify-content: center;
  margin-left: 1rem;
  width: 2rem;
}
.community-links a:hover { border-color: var(--amber); color: var(--amber); }
.legal { line-height: 1.6; }

[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 520ms ease, transform 520ms ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .site-header { align-items: center; flex-wrap: wrap; padding-bottom: 0.65rem; }
  .nav-links {
    display: flex;
    flex-basis: 100%;
    flex-wrap: nowrap;
    gap: 1.25rem;
    order: 3;
    overflow-x: auto;
    padding: 0.25rem 0 0.15rem;
    scrollbar-width: none;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { flex: 0 0 auto; }
  .hero { padding-top: 3.5rem; }
}

@media (max-width: 620px) {
  .site-header { gap: 0.6rem; }
  .brand img { height: 2.15rem; width: 2.15rem; }
  .header-cta { min-height: 2.5rem; }
  .hero { gap: 2.25rem; padding-inline: 1rem; }
  h1 { font-size: clamp(3rem, 16vw, 4.5rem); }
  .hero-actions .button,
  .inline-actions .button { width: 100%; }
  .hero-points { display: grid; grid-template-columns: 1fr; }
  .hero-visual { padding: 0.35rem; }
  .hero-visual > img { min-height: 17rem; }
  .terminal-card { margin-top: 0.6rem; }
  .menu-grid { grid-template-columns: 1fr; }
  .section { padding-inline: 1rem; }
  .community-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* Keep ARC visually primary after the general refresh rules above. */
.marquee span.arc-chain {
  -webkit-background-clip: border-box;
  background: var(--green);
  background-clip: border-box;
  color: #071014;
}

.v2-ai {
  background:
    linear-gradient(120deg, rgba(71, 184, 255, 0.1), transparent 42%),
    linear-gradient(300deg, rgba(142, 233, 255, 0.06), transparent 48%),
    rgba(5, 13, 18, 0.76);
  border-block: 1px solid var(--line);
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  grid-template-columns: minmax(18rem, 0.9fr) minmax(28rem, 1.35fr);
  max-width: none;
  padding-inline: max(1.5rem, calc((100vw - 1200px) / 2));
}

.v2-heading h2 {
  margin-bottom: 1rem;
}

.v2-heading .button {
  margin-top: 1.5rem;
}

.v2-flow {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
}

.v2-flow div {
  background: rgba(8, 20, 28, 0.8);
  display: grid;
  gap: 0.4rem;
  min-height: 10rem;
  padding: 1.5rem;
}

.v2-flow span {
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 900;
}

.mascot-stage {
  min-height: 43rem;
  overflow: hidden;
  position: relative;
}

#mascot-canvas {
  display: block;
  inset: 0;
  position: absolute;
  touch-action: pan-y;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.mascot-fallback {
  height: 100%;
  inset: 0;
  object-fit: cover;
  opacity: 1;
  position: absolute;
  transition: opacity 300ms ease;
  width: 100%;
}

.mascot-stage.is-3d-ready .mascot-fallback {
  opacity: 0;
}

.stage-label {
  color: rgba(217, 245, 255, 0.72);
  font-size: 0.66rem;
  font-weight: 800;
  left: 1.25rem;
  letter-spacing: 0.16em;
  position: absolute;
  top: 1.2rem;
  z-index: 3;
}

.mascot-stage .terminal-card {
  bottom: 1rem;
  left: 1rem;
  position: absolute;
  right: 1rem;
  z-index: 4;
}

@media (max-width: 620px) {
  .mascot-stage {
    min-height: 36rem;
  }
}

@media (min-width: 981px) {
  .hero {
    gap: clamp(2rem, 3vw, 3.5rem);
    grid-template-columns: minmax(0, 0.84fr) minmax(30rem, 1.16fr);
    max-width: 1320px;
  }

  .mascot-stage {
    width: 108%;
  }
}

.v2-flow strong {
  font-size: 1.05rem;
}

.v2-flow small,
.v2-note {
  color: var(--muted);
  line-height: 1.55;
}

.v2-note {
  font-size: 0.78rem;
  grid-column: 1 / -1;
  margin: -2.5rem 0 0;
}

@media (max-width: 900px) {
  .v2-ai {
    grid-template-columns: 1fr;
  }

  .v2-note {
    grid-column: auto;
    margin-top: -1rem;
  }
}

@media (max-width: 620px) {
  .v2-flow {
    grid-template-columns: 1fr;
  }

  .v2-flow div {
    min-height: 0;
  }
}