:root {
  --bg: #070b14;
  --panel: #11192a;
  --panel-soft: #0d1524;
  --text: #eaf2ff;
  --muted: #a6b6d3;
  --accent: #39a0ff;
  --accent-strong: #2f7dff;
  --border: #24324d;
  --maxw: 1100px;
}

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

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 10% 10%, #13243f 0%, var(--bg) 45%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.wrap {
  width: min(var(--maxw), 92vw);
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.hero {
  padding: 5rem 0 2.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.4rem;
  align-items: stretch;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.1;
  margin: 0;
}

.lead {
  color: var(--muted);
  margin-top: 1rem;
  max-width: 60ch;
  line-height: 1.6;
}

.lead-tight {
  margin-top: 0.2rem;
}

.hero-card,
.card,
details {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-soft) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.hero-card {
  padding: 1.2rem 1rem;
}

.hero-card h2 {
  margin-top: 0;
}

.hero-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.65;
}

.cta-row {
  margin-top: 1.2rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  display: inline-block;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  font-weight: 600;
  border: 1px solid var(--border);
}

.btn-primary {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #fff;
  border-color: transparent;
}

.btn-ghost {
  color: var(--text);
  background: transparent;
}

.section {
  padding: 2rem 0;
}

.section h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin: 0 0 1rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  padding: 1rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.section-alt {
  background: rgba(8, 14, 26, 0.4);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.split p,
.split li {
  color: var(--muted);
  line-height: 1.6;
}

.steps {
  color: var(--muted);
  line-height: 1.7;
  padding-left: 1.2rem;
}

.notify-form {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
  max-width: 620px;
}

.notify-form input[type="email"] {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1321;
  color: var(--text);
  padding: 0.78rem 0.85rem;
  font-size: 1rem;
}

.notify-form textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1321;
  color: var(--text);
  padding: 0.78rem 0.85rem;
  font-size: 0.98rem;
  resize: vertical;
  min-height: 86px;
}

.notify-form input[type="email"]::placeholder {
  color: #7f92b3;
}

.notify-form textarea::placeholder {
  color: #7f92b3;
}

.notify-form button {
  justify-self: start;
}

.form-note {
  margin-top: 0.6rem;
  font-size: 0.92rem;
  color: var(--muted);
}

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

details {
  padding: 0.8rem 1rem;
  margin-bottom: 0.7rem;
}

summary {
  cursor: pointer;
  font-weight: 600;
}

details p {
  color: var(--muted);
  margin-bottom: 0.1rem;
}

.footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1rem 0 1.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 880px) {
  .hero-grid,
  .cards,
  .split {
    grid-template-columns: 1fr;
  }

  .notify-form button { width: 100%; }
}