:root {
  --ink: #0c1210;
  --ink-2: #151d1a;
  --mist: #d7e0d8;
  --paper: #eef3ef;
  --mute: #8a9a90;
  --signal: #c8f54a;
  --signal-dim: #9bc22e;
  --line: rgba(215, 224, 216, 0.14);
  --glow: rgba(200, 245, 74, 0.18);
  --serif: "Fraunces", Georgia, serif;
  --sans: "Syne", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 500;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--ink);
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, var(--glow), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(90, 140, 110, 0.2), transparent 50%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 45%, #0a100e 100%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 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='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.nl-install {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 1.25rem 0 2.5rem;
}

.nl-install__topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.nl-install__brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-decoration: none;
  color: inherit;
}

.nl-install__brand strong {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nl-install__brand span {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--mute);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nl-install__nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.nl-install__nav-links a {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--signal);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
}

.nl-install__nav-links a:hover {
  border-color: var(--signal-dim);
}

.nl-install__header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.nl-install__eyebrow {
  margin: 0 0 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.nl-install__title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.035em;
  max-width: 16ch;
}

.nl-install__subtitle {
  margin: 0.75rem 0 0;
  max-width: 38rem;
  color: var(--mist);
  font-size: 1.02rem;
}

.nl-install__badge {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--mute);
}

.nl-install__notice {
  margin: 0 0 1.5rem;
  padding: 0.9rem 0 0.9rem 1rem;
  border-left: 2px solid var(--signal);
  border-radius: 0;
  background: rgba(200, 245, 74, 0.08);
  font-size: 0.92rem;
  color: var(--mist);
}

.nl-install__notice strong {
  color: var(--signal);
}

.nl-install__grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .nl-install__grid {
    grid-template-columns: 1fr 1fr;
  }

  .nl-card--wide {
    grid-column: 1 / -1;
  }
}

.nl-card {
  background: rgba(21, 29, 26, 0.72);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 1.25rem 1.2rem 1.35rem;
  backdrop-filter: blur(8px);
}

.nl-card__title {
  margin: 0 0 0.65rem;
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.nl-card__hint {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--mute);
}

.nl-card__fine {
  margin: 0.65rem 0 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--mute);
  word-break: break-all;
}

.nl-steps {
  margin: 0 0 0.85rem;
  padding-left: 1.2rem;
  font-size: 0.92rem;
  color: var(--mist);
}

.nl-steps li {
  margin-bottom: 0.5rem;
}

.nl-steps a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.nl-steps a:hover {
  border-bottom-color: var(--signal-dim);
}

.nl-card__hint a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.nl-card__hint a:hover {
  border-bottom-color: var(--signal-dim);
}

.nl-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 0.65rem 1.15rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, background 0.15s, color 0.15s, border-color 0.15s;
}

.nl-btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.nl-btn--block {
  width: 100%;
}

.nl-btn--primary {
  background: var(--signal);
  color: var(--ink);
}

.nl-btn--primary:hover:not(:disabled) {
  background: #d8ff6a;
}

.nl-btn--ghost {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line);
}

.nl-btn--ghost:hover:not(:disabled) {
  border-color: var(--signal-dim);
  color: var(--signal);
}

.nl-install__footer {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--mute);
}

.nl-install__footer a {
  color: var(--signal);
  text-decoration: none;
}

.nl-install__footer a:hover {
  border-bottom: 1px solid var(--signal-dim);
}

code {
  font-family: var(--mono);
  font-size: 0.82em;
  background: rgba(0, 0, 0, 0.35);
  color: var(--mist);
  padding: 0.12em 0.4em;
  border-radius: 0;
  border: 1px solid var(--line);
}

@media (prefers-reduced-motion: reduce) {
  .nl-btn {
    transition: none;
  }
}