:root {
  --bg: #0a101c;
  --surface: #111a2e;
  --surface-2: #0d1424;
  --border: rgba(255, 255, 255, 0.1);
  --text: #f3f6fc;
  --muted: #8b95ab;
  --brand: #5b7cf9;
  --brand-hover: #6b89ff;
  --brand-light: rgba(91, 124, 249, 0.14);
  --success: #22c55e;
  --radius: 1rem;
  --radius-sm: 0.65rem;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

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

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

.nl-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 16, 28, 0.95);
  backdrop-filter: blur(8px);
}

.nl-back {
  font-size: 0.875rem;
  color: var(--muted);
}

.nl-back:hover {
  color: var(--text);
}

.nl-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  font-weight: 700;
  font-size: 0.95rem;
}

.nl-brand img {
  display: block;
  width: auto;
  height: 3rem;
  max-width: none;
  object-fit: contain;
}

@media (min-width: 768px) {
  .nl-brand img {
    height: 4rem;
  }
}

.nl-main {
  max-width: 56rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.nl-hero {
  margin-bottom: 1.5rem;
}

.nl-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand);
}

.nl-hero h1 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nl-lead {
  margin: 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.nl-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

@media (min-width: 768px) {
  .nl-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.nl-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
}

.nl-card-accent {
  background: linear-gradient(145deg, rgba(91, 124, 249, 0.1), rgba(17, 26, 46, 0.95));
  border-color: rgba(91, 124, 249, 0.22);
}

.nl-card h2 {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nl-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nl-list li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.nl-list strong {
  font-size: 0.875rem;
}

.nl-list span {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.45;
}

.nl-checklist {
  list-style: none;
  margin: 0 0 0.85rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.nl-checklist li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.875rem;
  color: var(--text);
}

.nl-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.nl-note {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
}

.nl-signup {
  margin-top: 0.85rem;
}

.nl-signup-sub {
  margin: -0.35rem 0 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.nl-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .nl-form {
    grid-template-columns: 1fr 1fr auto;
    align-items: end;
  }
}

.nl-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}

.nl-field span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
}

.nl-field input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
}

.nl-field input::placeholder {
  color: rgba(139, 149, 171, 0.85);
}

.nl-field input:focus {
  outline: none;
  border-color: rgba(91, 124, 249, 0.55);
  box-shadow: 0 0 0 3px rgba(91, 124, 249, 0.18);
}

.nl-submit {
  min-height: 2.75rem;
  padding: 0 1.25rem;
  border: none;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 0 24px rgba(91, 124, 249, 0.35);
  transition: background 0.15s ease, box-shadow 0.15s ease;
}

.nl-submit:hover:not(:disabled) {
  background: var(--brand-hover);
  box-shadow: 0 0 32px rgba(91, 124, 249, 0.5);
}

.nl-submit:disabled {
  opacity: 0.65;
  cursor: wait;
}

.nl-message {
  margin: 0.85rem 0 0;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.nl-message-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.28);
  color: #fca5a5;
}

.nl-message-success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.28);
  color: #86efac;
}

.nl-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1.5rem 1rem 2rem;
  font-size: 0.8125rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.nl-footer a {
  color: var(--muted);
}

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