:root {
  color-scheme: dark;
  --bg: #0b0f19;
  --bg-alt: #121826;
  --card: #161e31;
  --text: #e6edf7;
  --muted: #9fb0c8;
  --accent: #63b3ff;
  --accent-strong: #2f80ff;
  --border: #26324a;
  --success: #64d2a4;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(1100px, 90vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 25, 0.85);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.25rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #041024;
  font-weight: 800;
}

.brand-name {
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.header-nav {
  display: flex;
  gap: 1.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.primary-button,
.secondary-button {
  border-radius: 999px;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #041024;
  box-shadow: 0 10px 24px rgba(47, 128, 255, 0.25);
}

.secondary-button {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
}

.hero {
  padding: 6rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--success);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-points {
  display: grid;
  gap: 1.25rem;
}

.hero-points strong {
  display: block;
  margin-bottom: 0.35rem;
}

.hero-card {
  background: linear-gradient(180deg, rgba(22, 30, 49, 0.9), rgba(15, 20, 35, 0.95));
  border-radius: 24px;
  padding: 1.8rem;
  border: 1px solid var(--border);
  box-shadow: 0 20px 50px rgba(6, 10, 20, 0.45);
}

.hero-card-inner h2 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.hero-card-inner h3 {
  font-size: 1.1rem;
  margin: 1rem 0 0.35rem;
}

.card-divider {
  height: 1px;
  background: var(--border);
  margin: 1.4rem 0;
}

.section {
  padding: 4.5rem 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section-heading {
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.section-heading h2 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.section-heading p {
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.feature-grid article {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(22, 30, 49, 0.6);
}

.feature-grid h3 {
  margin-bottom: 0.75rem;
}

.feature-grid p {
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 1.5rem;
}

.timeline-item {
  border-left: 2px solid var(--accent-strong);
  padding-left: 1.5rem;
}

.phase {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

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

.pill-row span {
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.cta {
  background: linear-gradient(135deg, rgba(47, 128, 255, 0.2), rgba(100, 210, 164, 0.2));
}

.cta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem;
  align-items: center;
}

.waitlist-form {
  display: grid;
  gap: 1rem;
  background: rgba(9, 13, 24, 0.6);
  padding: 1.5rem;
  border-radius: 18px;
  border: 1px solid var(--border);
}

.waitlist-form label {
  display: grid;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.waitlist-form input {
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0c1220;
  color: var(--text);
}

.form-note {
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  color: var(--muted);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-links {
  display: grid;
  gap: 0.5rem;
  text-align: right;
}

@media (max-width: 900px) {
  .header-nav {
    display: none;
  }

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

  .footer-links {
    text-align: left;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 4rem;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .cta-row {
    flex-direction: column;
  }
}