/* ── Design tokens ── */
:root {
  --bg: #050505;
  --bg-elevated: #0c0c0c;
  --bg-pill: #141414;
  --text: #f5f5f5;
  --text-muted: #8a8a8a;
  --text-dim: #5a5a5a;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.18);
  --accent: #c8ff00;
  --accent-dim: rgba(200, 255, 0, 0.12);
  --font-sans: "Instrument Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --max-width: 1280px;
  --header-height: 72px;
  --announcement-height: 36px;
  --radius-sm: 4px;
  --radius-pill: 999px;
  --transition: 0.25s ease;
  --grid-size: 64px;
  --grid-line: rgba(255, 255, 255, 0.04);
  --grid-line-major: rgba(255, 255, 255, 0.08);
}

/* ── Reset & base ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

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

/* ── 2D grid background ── */
.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to right, var(--grid-line-major) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line-major) 1px, transparent 1px);
  background-size:
    var(--grid-size) var(--grid-size),
    var(--grid-size) var(--grid-size),
    calc(var(--grid-size) * 4) calc(var(--grid-size) * 4),
    calc(var(--grid-size) * 4) calc(var(--grid-size) * 4);
  background-position: center center;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 20%, transparent 100%);
}

/* ── Shared 3D visuals ── */
.visual-3d {
  position: relative;
  z-index: 1;
  object-fit: contain;
  filter: drop-shadow(0 0 80px rgba(255, 255, 255, 0.06));
  will-change: transform;
}

.visual-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.06) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.visual-glow--sm {
  inset: -10%;
}

/* ── Bracket button ── */
.btn-bracket {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.625rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
  cursor: pointer;
}

.btn-bracket::before,
.btn-bracket::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--border-strong);
  border-style: solid;
  transition: border-color var(--transition);
}

.btn-bracket::before {
  top: 0;
  left: 0;
  border-width: 1px 0 0 1px;
}

.btn-bracket::after {
  bottom: 0;
  right: 0;
  border-width: 0 1px 1px 0;
}

.btn-bracket:hover,
.btn-bracket:focus-visible {
  color: var(--accent);
  outline: none;
}

.btn-bracket:hover::before,
.btn-bracket:hover::after,
.btn-bracket:focus-visible::before,
.btn-bracket:focus-visible::after {
  border-color: var(--accent);
}

.btn-bracket--lg {
  padding: 0.875rem 1.75rem;
  font-size: 0.8125rem;
}

.btn-bracket--solid {
  background: var(--text);
  color: var(--bg);
}

.btn-bracket--solid::before,
.btn-bracket--solid::after {
  border-color: var(--text);
}

.btn-bracket--solid:hover,
.btn-bracket--solid:focus-visible {
  background: var(--accent);
  color: var(--bg);
}

.btn-bracket--solid:hover::before,
.btn-bracket--solid:hover::after,
.btn-bracket--solid:focus-visible::before,
.btn-bracket--solid:focus-visible::after {
  border-color: var(--accent);
}

.btn-bracket--accent {
  color: var(--accent);
}

.btn-bracket--accent::before,
.btn-bracket--accent::after {
  border-color: var(--accent);
}

.btn-bracket--accent:hover,
.btn-bracket--accent:focus-visible {
  color: var(--text);
}

.btn-bracket--accent:hover::before,
.btn-bracket--accent:hover::after,
.btn-bracket--accent:focus-visible::before,
.btn-bracket--accent:focus-visible::after {
  border-color: var(--border-strong);
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(5, 5, 5, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.announcement {
  background: var(--accent);
  color: var(--bg);
  text-align: center;
  padding: 0.5rem var(--space-md);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.announcement p {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem 0.75rem;
}

.announcement-label {
  font-weight: 700;
}

.announcement-cta {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.announcement-cta:hover {
  opacity: 0.8;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: var(--header-height);
  position: relative;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  flex-shrink: 0;
  z-index: 210;
}

.nav-logo {
  display: block;
  color: var(--text);
}

.nav-block {
  display: none;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.bracket {
  color: var(--text-dim);
}

.nav-block-value {
  color: var(--text);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  margin-left: auto;
  cursor: pointer;
  z-index: 210;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* Desktop nav (inline) */
.nav-menu--desktop {
  display: none;
}

/* Mobile menu overlay */
.mobile-menu-backdrop {
  display: none;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 270;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition), visibility var(--transition);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  min-height: var(--header-height);
  padding: 0 var(--space-lg);
  padding-top: env(safe-area-inset-top, 0);
  border-bottom: 1px solid var(--border);
}

.mobile-menu-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.mobile-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--text);
  cursor: pointer;
  margin-right: -0.5rem;
  transition: color var(--transition);
}

.mobile-menu-close:hover {
  color: var(--accent);
}

.mobile-menu-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  padding: var(--space-2xl) var(--space-lg);
  padding-bottom: calc(var(--space-2xl) + env(safe-area-inset-bottom, 0));
}

.mobile-menu-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.mobile-menu-links a {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition);
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: 0.5rem 1rem;
}

.mobile-menu-links a:hover,
.mobile-menu-links a:focus-visible {
  color: var(--text);
  outline: none;
}

.mobile-menu-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  outline: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--text-muted);
  transition: color var(--transition);
}

.nav-icon:hover,
.nav-icon:focus-visible {
  color: var(--text);
  outline: none;
}

/* ── Hero ── */
.hero {
  position: relative;
  z-index: 1;
  isolation: isolate;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: var(--bg);
}

.hero::after {
  display: none;
}

.hero-visual::after {
  content: "";
  position: absolute;
  z-index: 1;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}

.hero-visual {
  position: relative;
  width: 100%;
  height: clamp(260px, 44vh, 420px);
  background: var(--bg);
  overflow: hidden;
}

.hero-visual picture {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-illustration {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.hero-body {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg) var(--space-3xl);
  text-align: center;
}

.hero-content {
  max-width: 36rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  margin-bottom: var(--space-lg);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(200, 255, 0, 0.35);
}

.hero h1 {
  font-size: clamp(1.875rem, 5.5vw, 3.5rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 18ch;
  margin-bottom: var(--space-lg);
  color: var(--text-muted);
}

.hero h1 strong {
  font-weight: 600;
  color: var(--text);
}

.hero-desc {
  font-family: var(--font-mono);
  font-size: clamp(0.8125rem, 2vw, 0.9375rem);
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 42ch;
  margin-bottom: var(--space-xl);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  min-height: 44px;
}

.hero-link:hover,
.hero-link:focus-visible {
  color: var(--text);
  outline: none;
}

/* ── Inspiration carousel ── */
.inspiration {
  position: relative;
  z-index: 1;
  padding: var(--space-xl) 0 var(--space-2xl);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.inspiration-label {
  margin: 0 0 var(--space-lg);
  padding: 0 var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  color: var(--text-dim);
}

.inspiration-carousel {
  mask-image: linear-gradient(
    to right,
    transparent,
    black 12%,
    black 88%,
    transparent
  );
}

.inspiration-track {
  display: flex;
  width: max-content;
  animation: inspiration-scroll var(--marquee-duration, 28s) linear infinite;
  will-change: transform;
}

.inspiration-logos {
  display: flex;
  align-items: center;
  gap: clamp(3rem, 8vw, 5.5rem);
  margin: 0;
  padding: 0 clamp(1.5rem, 4vw, 2.75rem);
  list-style: none;
}

.inspiration-logos li {
  flex-shrink: 0;
}

.inspiration-logos img {
  display: block;
  height: clamp(22px, 3.2vw, 30px);
  width: auto;
  opacity: 0.42;
  filter: brightness(0) invert(1);
  transition: opacity var(--transition);
}

.inspiration-logos img.inspiration-logo--color {
  filter: grayscale(1) brightness(1.15);
  opacity: 0.55;
}

.inspiration-logos li:hover img {
  opacity: 0.95;
}

.inspiration-logos li:hover img.inspiration-logo--color {
  filter: none;
  opacity: 1;
}

@keyframes inspiration-scroll {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(-1 * var(--marquee-distance, 50%)));
  }
}

.inspiration-track.is-static {
  animation: none;
  margin-inline: auto;
}

@media (prefers-reduced-motion: reduce) {
  .inspiration-track {
    animation: none;
    margin-inline: auto;
  }

  .inspiration-carousel {
    mask-image: none;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .inspiration-carousel::-webkit-scrollbar {
    display: none;
  }
}

/* ── Risk section ── */
.risk {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) var(--space-lg);
}

.risk-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
}

.risk-copy {
  text-align: center;
}

.risk-copy h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: var(--space-lg);
  max-width: 14ch;
  margin-left: auto;
  margin-right: auto;
}

.risk-copy p {
  font-family: var(--font-mono);
  font-size: clamp(0.8125rem, 2vw, 0.9375rem);
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 52ch;
  margin: 0 auto var(--space-xl);
}

.risk-visual {
  position: relative;
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
}

.risk-visual img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 16 / 9;
  filter: grayscale(1) contrast(1.05);
}

/* ── Showcase banner ── */
.showcase {
  position: relative;
  z-index: 1;
  max-width: 100%;
  margin: 0 auto var(--space-3xl);
  overflow: hidden;
}

.showcase-visual {
  position: relative;
  width: 100%;
  max-height: 480px;
  overflow: hidden;
  mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
}

.showcase-img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  object-position: center;
  opacity: 0.85;
}

.showcase-copy {
  max-width: var(--max-width);
  margin: calc(var(--space-2xl) * -1) auto 0;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 2;
}

.showcase-copy h2 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  max-width: 16ch;
}

.showcase-copy p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 52ch;
}

.section-intro {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg) var(--space-xl);
  text-align: center;
}

.section-intro--left {
  text-align: left;
}

.section-intro h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  max-width: 22ch;
  margin-left: auto;
  margin-right: auto;
}

.section-intro--left h2 {
  margin-left: 0;
  margin-right: 0;
}

.section-intro p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 56ch;
  margin: 0 auto;
}

.section-intro--left p {
  margin: 0;
}

.showcase-copy h3 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  max-width: 16ch;
}

/* ── How it works ── */
.how-it-works {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) var(--space-lg);
}

.how-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
}

.how-copy h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  max-width: 20ch;
}

.how-copy > p {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  max-width: 48ch;
}

.steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.steps li {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  border: 1px solid var(--border);
  background: rgba(5, 5, 5, 0.6);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  flex-shrink: 0;
  padding-top: 0.15rem;
}

.steps h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.steps p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.how-visual {
  border: 1px solid var(--border);
  overflow: hidden;
}

.how-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}

/* ── Features ── */
.features {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding-bottom: var(--space-3xl);
}

.features-grid {
  display: grid;
  gap: 1px;
  background: var(--border);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.feature-card {
  background: rgba(5, 5, 5, 0.85);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.feature-card > img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--border);
  margin-bottom: var(--space-sm);
  filter: grayscale(1) contrast(1.05);
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── Use cases ── */
.use-cases {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) var(--space-lg);
}

.use-cases-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
}

.use-cases-visual {
  border: 1px solid var(--border);
  overflow: hidden;
}

.use-cases-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}

.use-cases-content h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  max-width: 18ch;
}

.use-cases-lead {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  max-width: 52ch;
  line-height: 1.75;
}

.use-case-list {
  display: grid;
  gap: var(--space-md);
}

.use-case {
  padding: var(--space-lg);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.use-case h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.use-case p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── Technology ── */
.technology {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) var(--space-lg);
}

.tech-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
}

.tech-copy h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.tech-copy > p {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
  max-width: 48ch;
  line-height: 1.75;
}

.tech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}

.tech-list li {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8125rem;
}

.tech-list li:last-child {
  border-bottom: none;
}

.tech-key {
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.tech-val {
  color: var(--text);
  text-align: right;
}

.tech-visual {
  border: 1px solid var(--border);
  overflow: hidden;
}

.tech-visual img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}

/* ── Validators section ── */
.validators-section {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) var(--space-lg);
}

.validators-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto var(--space-3xl);
}

.validators-copy h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  max-width: 18ch;
}

.validators-copy > p {
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  max-width: 48ch;
  line-height: 1.75;
}

.validator-points {
  list-style: none;
  margin-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.validator-points li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
  line-height: 1.6;
}

.validator-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  background: var(--accent);
}

.validators-visual {
  border: 1px solid var(--border);
  overflow: hidden;
}

.validators-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}

.validators-section .stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
}

/* ── Comparison ── */
.comparison {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding-bottom: var(--space-3xl);
}

.comparison-table-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  min-width: 560px;
}

.comparison-table th,
.comparison-table td {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  text-align: left;
}

.comparison-table thead th {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-elevated);
}

.comparison-table tbody td:first-child {
  color: var(--text-muted);
}

.comparison-table tbody td:nth-child(2) {
  color: var(--accent);
  font-weight: 500;
}

/* ── FAQ ── */
.faq {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) var(--space-lg);
}

.faq-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: var(--space-2xl);
}

.faq-header h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.faq-header p {
  color: var(--text-muted);
  max-width: 40ch;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.faq-item {
  background: var(--bg);
}

.faq-item summary {
  padding: var(--space-lg);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  min-height: 44px;
}

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

.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 var(--space-lg) var(--space-lg);
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 65ch;
}

.section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

/* legacy feature styles removed in favor of .feature-card */

/* ── Stats ── */
.stats-inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: var(--max-width);
  margin: 0 auto;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Research ── */
.research {
  position: relative;
  z-index: 1;
  padding: var(--space-3xl) var(--space-lg);
  border-top: 1px solid var(--border);
}

.research-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
  align-items: center;
}

.research-copy h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  max-width: 18ch;
}

.research-copy p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 48ch;
  margin-bottom: var(--space-xl);
}

.research-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: min(100%, 480px);
}

.research-visual .visual-3d {
  width: 100%;
  aspect-ratio: 1;
}

/* ── Connect ── */
.connect {
  position: relative;
  z-index: 1;
  padding: var(--space-4xl) var(--space-lg);
  border-top: 1px solid var(--border);
  text-align: center;
  overflow: hidden;
}

.connect-visual {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  pointer-events: none;
}

.connect-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
}

.connect-inner {
  max-width: 520px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.connect h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.connect p {
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.connect-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.connect-form input {
  width: 100%;
  min-height: 48px;
  padding: 0 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  transition: border-color var(--transition);
}

.connect-form input::placeholder {
  color: var(--text-dim);
}

.connect-form input:focus {
  outline: none;
  border-color: var(--border-strong);
}

.connect-form .btn-bracket {
  width: 100%;
}

/* ── Footer ── */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) var(--space-lg);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.footer-logo {
  display: block;
  color: var(--text);
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md) var(--space-lg);
  margin-top: var(--space-sm);
}

.footer-nav a {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--text);
}

.footer-copy {
  font-size: 0.6875rem;
  color: var(--text-dim);
  margin-top: var(--space-md);
}

/* ── Tablet ── */
.feature-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-dim);
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .use-case-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .faq-inner {
    grid-template-columns: 1fr 1.4fr;
    align-items: start;
  }

  .stats-inner {
    grid-template-columns: repeat(4, 1fr);
  }

  .connect-form {
    flex-direction: row;
  }

  .connect-form input {
    flex: 1;
  }

  .connect-form .btn-bracket {
    width: auto;
    flex-shrink: 0;
  }

  .research-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .research-copy {
    flex: 1;
  }

  .research-visual {
    flex-shrink: 0;
    width: min(45%, 420px);
  }

  .risk-inner {
    flex-direction: row;
    align-items: center;
    gap: var(--space-3xl);
  }

  .risk-copy {
    flex: 1;
    text-align: left;
  }

  .risk-copy h2 {
    margin-left: 0;
    margin-right: 0;
  }

  .risk-copy p {
    margin-left: 0;
    margin-right: 0;
  }

  .risk-visual {
    flex: 1.2;
  }

  .how-inner {
    flex-direction: row;
    align-items: flex-start;
  }

  .how-copy {
    flex: 1;
  }

  .how-visual {
    flex: 1.1;
  }

  .use-cases-inner {
    flex-direction: row;
    align-items: flex-start;
  }

  .use-cases-visual {
    flex: 1.1;
    position: sticky;
    top: calc(var(--header-height) + var(--announcement-height) + 2rem);
  }

  .use-cases-content {
    flex: 1;
  }

  .tech-inner {
    flex-direction: row;
    align-items: center;
  }

  .tech-copy {
    flex: 1;
  }

  .tech-visual {
    flex: 0.85;
  }

  .validators-inner {
    flex-direction: row;
    align-items: center;
  }

  .validators-copy {
    flex: 1;
  }

  .validators-visual {
    flex: 1.1;
  }
}

/* ── Desktop ── */
@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .mobile-menu,
  .mobile-menu-backdrop {
    display: none !important;
  }

  .nav-menu--desktop {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    margin-left: auto;
  }

  .nav-block {
    display: flex;
  }

  .hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    grid-template-rows: 1fr;
    align-items: center;
    min-height: calc(100vh - var(--header-height) - var(--announcement-height));
    max-width: none;
    padding: 0;
  }

  .hero-visual {
    position: relative;
    grid-column: 2;
    grid-row: 1;
    width: 100%;
    height: 100%;
    min-height: calc(100vh - var(--header-height) - var(--announcement-height));
    max-height: none;
  }

  .hero-illustration {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: right center;
    transform: scale(1.12);
    transform-origin: right center;
  }

  .hero-body {
    position: relative;
    z-index: 2;
    grid-column: 1;
    grid-row: 1;
    max-width: none;
    width: 100%;
    margin: 0;
    padding: var(--space-3xl) var(--space-lg) var(--space-4xl);
    padding-left: max(var(--space-lg), calc((100vw - var(--max-width)) / 2 + var(--space-lg)));
    text-align: left;
  }

  .hero-content {
    max-width: 28rem;
    margin: 0;
    align-items: flex-start;
  }

  .hero h1 {
    max-width: 13ch;
  }

  .hero-cta {
    justify-content: flex-start;
  }

  .hero-visual::after {
    display: none;
  }

  .showcase-visual {
    max-height: 560px;
  }

  .showcase-img {
    max-height: 560px;
  }
}

@media (min-width: 1100px) {
  .hero-illustration {
    transform: scale(1.2);
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .use-case-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Research dialog carousel ── */
.research-dialog {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.research-dialog.is-open {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

.research-dialog-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.research-dialog-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 520px);
  max-height: min(92vh, 720px);
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  padding: var(--space-xl);
  transform: translateY(16px) scale(0.98);
  transition: transform 0.35s ease;
}

.research-dialog.is-open .research-dialog-panel {
  transform: translateY(0) scale(1);
}

.research-dialog-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  z-index: 2;
  transition: color var(--transition);
}

.research-dialog-close:hover {
  color: var(--text);
}

.research-dialog-header {
  padding-right: 2.5rem;
  margin-bottom: var(--space-lg);
}

.research-dialog-header h2 {
  font-size: clamp(1.375rem, 4vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.research-carousel {
  position: relative;
  margin-bottom: var(--space-md);
}

.research-carousel-viewport {
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.research-carousel-track {
  display: flex;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.research-slide {
  flex: 0 0 100%;
  min-width: 100%;
  display: flex;
  flex-direction: column;
}

.research-slide-head {
  padding: var(--space-lg) var(--space-lg) var(--space-md);
}

.research-slide-head h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.research-slide-head h3 a:hover {
  color: var(--accent);
}

.research-slide-image {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.research-slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.2) contrast(1.05);
  transition: transform 0.4s ease;
}

.research-slide-image:hover img {
  transform: scale(1.02);
}

.research-slide-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.research-slide-excerpt {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.carousel-btn {
  position: absolute;
  top: 38%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 5, 5, 0.85);
  border: 1px solid var(--border-strong);
  color: var(--text);
  cursor: pointer;
  z-index: 2;
  transition: border-color var(--transition), color var(--transition);
}

.carousel-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.carousel-prev {
  left: 0.5rem;
}

.carousel-next {
  right: 0.5rem;
}

.research-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
}

.carousel-dot {
  width: 44px;
  height: 4px;
  padding: 0;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.carousel-dot.is-active {
  background: var(--accent);
}

.carousel-dot:hover {
  background: var(--border-strong);
}

.carousel-dot.is-active:hover {
  background: var(--accent);
}

.research-dialog-footer {
  display: flex;
  justify-content: center;
}

body.dialog-open {
  overflow: hidden;
}

@media (min-width: 640px) {
  .research-dialog-panel {
    width: min(100%, 560px);
    padding: var(--space-2xl);
  }

  .carousel-btn {
    width: 44px;
    height: 44px;
  }

  .carousel-prev {
    left: -0.75rem;
  }

  .carousel-next {
    right: -0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .research-carousel-track {
    transition-duration: 0.01ms;
  }

  .research-dialog-panel {
    transition: none;
  }
}