:root {
  --bg: #0b1020;
  --panel: #11182c;
  --panel-2: #151f38;
  --text: #f6f8ff;
  --muted: #a9b3c9;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #79f2c0;
  --accent-2: #8ab4ff;
  --danger: #ff6b6b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(121, 242, 192, 0.12), transparent 32rem),
    radial-gradient(circle at top right, rgba(138, 180, 255, 0.12), transparent 28rem),
    var(--bg);
  line-height: 1.6;
}

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(11, 16, 32, 0.75);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
}

.hero {
  padding: 96px 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin: 0 0 16px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(3rem, 7vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.075em;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.055em;
  margin-bottom: 20px;
}

h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.hero-subtitle,
.section-copy,
.cta-box p {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 760px;
}

.waitlist-form {
  display: flex;
  gap: 10px;
  margin-top: 32px;
  max-width: 540px;
}

.waitlist-form input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 15px 16px;
  border-radius: 14px;
  font: inherit;
  outline: none;
}

.waitlist-form input::placeholder {
  color: #74809a;
}

.waitlist-form button {
  border: 0;
  background: var(--accent);
  color: #061017;
  font-weight: 800;
  padding: 15px 18px;
  border-radius: 14px;
  cursor: pointer;
  font: inherit;
  white-space: nowrap;
}

.form-note {
  color: var(--muted);
  font-size: 0.94rem;
  margin-top: 12px;
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.sample-card {
  padding: 28px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-weight: 800;
  font-size: 0.8rem;
}

.danger {
  color: #220808;
  background: var(--danger);
}

.muted {
  color: var(--muted);
}

dl {
  display: grid;
  gap: 18px;
  margin: 22px 0 0;
}

dt {
  color: var(--accent-2);
  font-weight: 800;
  margin-bottom: 4px;
}

dd {
  margin: 0;
  color: var(--muted);
}

.section {
  padding: 88px 0;
}

.alt {
  background: rgba(255, 255, 255, 0.035);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 36px;
}

.feature {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 22px;
}

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

.audience-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.audience-list span {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.055);
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
}

.cta-section {
  padding: 92px 0;
}

.cta-box {
  background: linear-gradient(135deg, rgba(121, 242, 192, 0.12), rgba(138, 180, 255, 0.10));
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: clamp(28px, 5vw, 52px);
  box-shadow: var(--shadow);
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 28px 0;
}

.footer p {
  margin: 0;
}

@media (max-width: 860px) {
  .hero-grid,
  .features {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 64px;
  }

  .waitlist-form {
    flex-direction: column;
  }

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

.form-message {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 12px 0 0;
  min-height: 1.5em;
}

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

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

.waitlist-form button:disabled {
  cursor: not-allowed;
  opacity: 0.78;
}

.waitlist-form input:focus {
  border-color: rgba(121, 242, 192, 0.72);
  box-shadow: 0 0 0 4px rgba(121, 242, 192, 0.12);
}