:root {
  --bg: #050d18;
  --bg-mid: #0a1628;
  --bg-card: rgba(18, 38, 58, 0.55);
  --text: #f5f8fc;
  --muted: #9eb4c8;
  --line: rgba(94, 140, 180, 0.25);
  --accent: #64b5f6;
  --accent-soft: rgba(100, 181, 246, 0.15);
  --success: #7dd87a;
  --danger: #f0a4a4;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --radius-sm: 12px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(50, 120, 200, 0.18), transparent 55%),
    radial-gradient(ellipse 90% 60% at 100% 50%, rgba(30, 80, 140, 0.12), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-mid) 45%, var(--bg) 100%);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: #031018;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: #9fd4ff;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(5, 13, 24, 0.72);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--text);
  opacity: 0.92;
}

.brand img {
  height: 40px;
  width: auto;
  max-width: min(200px, 50vw);
  object-fit: contain;
  object-position: left center;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font: inherit;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.25rem;
}

.nav a {
  color: var(--muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

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

.nav a[aria-current="page"] {
  color: var(--accent);
}

main {
  flex: 1;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.hero {
  text-align: center;
  padding: 2rem 0 3rem;
}

.hero-logo {
  display: block;
  margin: 0 auto 1.5rem;
  width: auto;
  max-width: min(260px, 88vw);
  max-height: 150px;
  height: auto;
  object-fit: contain;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.page-intro-logo {
  display: block;
  max-height: 112px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  margin: 0 0 1.25rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 6vw, 2.85rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.tagline {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  color: var(--muted);
  font-weight: 500;
}

.hero-lead {
  margin: 0 auto;
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-sub {
  margin: 0 auto 1.5rem;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-cta {
  margin: 0 0 0.65rem;
}

.hero-cta-helper {
  margin: 0 0 0.35rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
}

.hero-cta-urgency {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.hero-credibility {
  margin: 0 auto;
  max-width: 32rem;
  font-size: 0.9375rem;
  color: var(--muted);
  font-weight: 500;
}

.section {
  margin-top: 3.25rem;
}

.section-head {
  margin-bottom: 1.25rem;
}

.section-head h2 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  max-width: 40rem;
}

.section-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
  max-width: 40rem;
}

.section-list li {
  margin-bottom: 0.45rem;
}

.section-list li:last-child {
  margin-bottom: 0;
}

.card-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .card-grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(100, 181, 246, 0.35);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.waitlist-panel {
  margin-top: 3.5rem;
  padding: 2rem 1.5rem;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(145deg, rgba(25, 55, 85, 0.4), rgba(12, 28, 48, 0.65));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.waitlist-panel h2 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  font-weight: 650;
}

.waitlist-panel > p {
  margin: 0 0 1.25rem;
  color: var(--muted);
  max-width: 36rem;
}

.waitlist-panel > p.cta-subline {
  color: var(--text);
  font-weight: 500;
}

.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (min-width: 520px) {
  .waitlist-form {
    flex-direction: row;
    align-items: stretch;
  }
}

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

.waitlist-form input[type="email"] {
  flex: 1;
  min-width: 0;
  padding: 0.9rem 1.1rem;
  font: inherit;
  color: var(--text);
  background: rgba(5, 15, 28, 0.65);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.waitlist-form input::placeholder {
  color: rgba(158, 180, 200, 0.55);
}

.waitlist-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.5rem;
  font: inherit;
  font-weight: 600;
  color: #031018;
  background: linear-gradient(180deg, #8ecfff 0%, var(--accent) 100%);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.btn:hover {
  filter: brightness(1.06);
  box-shadow: 0 8px 28px rgba(100, 181, 246, 0.35);
}

a.btn {
  text-decoration: none;
}

a.btn:hover {
  color: #031018;
}

.btn--ghost {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
  box-shadow: none;
}

.btn--ghost:hover {
  color: var(--text);
  background: var(--accent-soft);
  border-color: rgba(100, 181, 246, 0.4);
  box-shadow: none;
  filter: none;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
  align-items: center;
  margin-bottom: 0.65rem;
}

.product-spotlight {
  margin-top: 3.25rem;
  padding: 1.75rem 1.5rem;
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(25, 55, 85, 0.35), rgba(12, 28, 48, 0.55));
  box-shadow: var(--shadow);
}

.product-spotlight h2 {
  margin: 0 0 0.65rem;
  font-size: 1.35rem;
  font-weight: 650;
}

.product-spotlight > p {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 40rem;
}

.product-spotlight .card-grid {
  margin-top: 1rem;
}

.waitlist-cta {
  margin: 1.25rem 0 0;
}

.btn:active {
  transform: scale(0.98);
}

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

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.form-status {
  margin-top: 1rem;
  min-height: 1.5rem;
  font-size: 0.9375rem;
}

.form-status[role="status"] {
  color: var(--muted);
}

.form-status.success {
  color: var(--success);
}

.form-status.error {
  color: var(--danger);
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--line);
  background: rgba(5, 13, 24, 0.5);
  padding: 2.5rem 1.25rem;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer-legal p {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-legal strong {
  color: var(--text);
  font-weight: 600;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.9rem;
}

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

.page-intro {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.page-intro h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.85rem, 4.5vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-intro p {
  margin: 0;
  color: var(--muted);
}

.feature-block {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-card);
  transition: border-color 0.2s ease;
}

.feature-block:hover {
  border-color: rgba(100, 181, 246, 0.3);
}

.feature-block h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 650;
}

.feature-block p {
  margin: 0;
  color: var(--muted);
}

.contact-card {
  max-width: 32rem;
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-card);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.contact-card p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.contact-card p:last-child {
  margin-bottom: 0;
}

.contact-card a {
  font-weight: 600;
}

.prose {
  max-width: 42rem;
}

.prose h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 4vw, 2.1rem);
}

.prose h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.2rem;
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose ul {
  padding-left: 1.25rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose p {
  margin: 0 0 1rem;
}

.cta-inline {
  margin-top: 2.5rem;
}

@media (max-width: 720px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.75rem;
  }

  .nav.is-open {
    display: flex;
  }

  .header-inner {
    flex-wrap: wrap;
  }
}