:root {
  --void: #061018;
  --ink: #0b1c24;
  --mist: #c5d5dc;
  --paper: #e8f0f2;
  --filament: #3ee0c8;
  --filament-dim: #1a8f8a;
  --ember: #e6b35a;
  --line: rgba(62, 224, 200, 0.22);
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Sora', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--paper);
  background: var(--void);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

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

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--filament);
  color: var(--void);
  padding: 0.5rem 0.75rem;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--void) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-parent {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--filament-dim);
}

.brand-name {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
  font-size: 0.92rem;
}

.nav-links a:hover {
  color: var(--filament);
}

.nav-cta {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.3rem;
  color: var(--filament) !important;
}

.hero {
  position: relative;
  min-height: min(100vh, 920px);
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: clamp(4rem, 12vh, 7rem) clamp(1rem, 4vw, 2.5rem) clamp(3rem, 8vh, 5rem);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(62, 224, 200, 0.12), transparent 55%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(230, 179, 90, 0.08), transparent 50%),
    linear-gradient(165deg, #030a0e 0%, var(--void) 45%, #0a222c 100%);
}

.filament {
  position: absolute;
  height: 1px;
  width: 140%;
  left: -20%;
  background: linear-gradient(
    90deg,
    transparent,
    var(--filament-dim),
    var(--filament),
    var(--ember),
    transparent
  );
  opacity: 0.55;
  animation: drift 14s var(--ease) infinite alternate;
}

.f1 {
  top: 28%;
  transform: rotate(-8deg);
}
.f2 {
  top: 46%;
  opacity: 0.35;
  transform: rotate(4deg);
  animation-delay: -4s;
}
.f3 {
  top: 62%;
  opacity: 0.25;
  transform: rotate(-3deg);
  animation-delay: -8s;
}

.noise {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes drift {
  from {
    transform: translateX(-2%) rotate(var(--r, -8deg));
  }
  to {
    transform: translateX(2%) rotate(var(--r, -8deg));
  }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 44rem;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--filament);
  margin: 0 0 0.75rem;
}

.kicker.ink {
  color: var(--filament-dim);
}

.brand-hero {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 5.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  background: linear-gradient(120deg, var(--paper) 30%, var(--filament) 75%, var(--ember));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 {
  margin: 0 0 0.85rem;
}

.hero-line {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  font-weight: 500;
  color: var(--mist);
}

.hero-support {
  margin: 0 0 1.5rem;
  max-width: 36rem;
  color: color-mix(in srgb, var(--mist) 85%, #6a8a94);
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.7rem 1.15rem;
  border-radius: 0.35rem;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition:
    transform 0.3s var(--ease),
    background 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-signal {
  background: var(--filament);
  color: var(--void);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--paper);
}

.btn-ghost:hover {
  border-color: var(--filament);
  color: var(--filament);
}

.section {
  padding: clamp(3.5rem, 9vh, 5.5rem) clamp(1rem, 4vw, 2.5rem);
}

.band {
  background:
    linear-gradient(180deg, rgba(62, 224, 200, 0.06), transparent 40%),
    linear-gradient(180deg, #0a1a22, var(--ink));
  border-block: 1px solid var(--line);
}

.wrap {
  max-width: 72rem;
  margin: 0 auto;
}

.section h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.lede {
  margin: 0 0 1.5rem;
  max-width: 40rem;
  color: color-mix(in srgb, var(--mist) 88%, #6a8a94);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.grid-3 article {
  padding: 1.15rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: color-mix(in srgb, var(--ink) 70%, transparent);
}

.grid-3 h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.grid-3 p {
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
}

.modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.mode {
  padding: 1.25rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
}

.mode.accent {
  border-color: color-mix(in srgb, var(--filament) 45%, transparent);
  background: color-mix(in srgb, var(--filament) 8%, transparent);
}

.mode h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--filament);
}

.mode p {
  margin: 0;
  color: var(--mist);
}

.fine {
  margin: 0;
  font-size: 0.9rem;
  color: color-mix(in srgb, var(--mist) 70%, #5a7a84);
}

.steps {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.steps li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 0.75rem;
  align-items: baseline;
}

.steps span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--filament);
}

.sister .lede {
  margin-bottom: 1.25rem;
}

.footer {
  padding: 2rem clamp(1rem, 4vw, 2.5rem) 2.5rem;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.75rem;
  color: color-mix(in srgb, var(--mist) 75%, #5a7a84);
  font-size: 0.92rem;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
}

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

.disclaimer {
  margin: 0;
  max-width: 48rem;
  font-size: 0.82rem;
  line-height: 1.45;
}

@media (max-width: 720px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }
  .hero {
    align-items: center;
    min-height: 85vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  .filament {
    animation: none;
  }
  .btn:hover {
    transform: none;
  }
}