:root {
  --bg: #05070d;
  --bg-alt: #0a0e18;
  --card: #10141f;
  --card-border: #1e2433;
  --text: #eef1f8;
  --text-dim: #9aa3b5;
  --text-dimmer: #6b7387;
  --accent: #6ee7ff;
  --accent-2: #7c6bff;
  --accent-grad: linear-gradient(120deg, #6ee7ff, #7c6bff);
  --success: #4ade80;
  --error: #fb7185;
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}

.bg-glow {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  height: 800px;
  background: radial-gradient(closest-side, rgba(124,107,255,0.28), rgba(110,231,255,0.10) 45%, transparent 70%);
  filter: blur(10px);
  z-index: -1;
  pointer-events: none;
}

.accent {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(5,7,13,0.6);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.brand-mark {
  display: inline-flex;
  color: var(--accent);
  font-size: 20px;
}
.nav-cta {
  color: var(--bg);
  background: var(--accent-grad);
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(124,107,255,0.35);
}

/* Hero */
.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 100px 24px 60px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(110,231,255,0.08);
  border: 1px solid rgba(110,231,255,0.25);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 22px;
  font-weight: 700;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 40px;
}

.waitlist-form {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
}
.waitlist-form input {
  flex: 1;
  min-width: 0;
  padding: 14px 18px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: var(--card);
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.waitlist-form input::placeholder { color: var(--text-dimmer); }
.waitlist-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(110,231,255,0.15);
}
.waitlist-form input.invalid {
  border-color: var(--error);
}
.waitlist-form button {
  padding: 14px 22px;
  border-radius: 10px;
  border: none;
  background: var(--accent-grad);
  color: #04060b;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.waitlist-form button:hover { transform: translateY(-1px); box-shadow: 0 8px 28px rgba(124,107,255,0.35); }
.waitlist-form button:disabled { opacity: 0.6; cursor: default; transform: none; box-shadow: none; }

.form-note {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--text-dimmer);
  min-height: 18px;
}
.form-note.success { color: var(--success); font-weight: 600; }
.form-note.error { color: var(--error); font-weight: 600; }

.social-proof {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}
.social-proof .dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(74,222,128,0.15);
}
#signup-count { color: var(--text); font-weight: 700; }

/* Logos */
.logos {
  text-align: center;
  padding: 20px 24px 70px;
  color: var(--text-dimmer);
}
.logos p { font-size: 13px; margin-bottom: 20px; letter-spacing: 0.02em; }
.logo-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 32px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-dim);
}

/* Features */
.features {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 90px;
}
.section-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 56px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.section-head p {
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(110,231,255,0.35);
}
.feature-icon {
  font-size: 26px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 17px;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.feature-card p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text-dim);
  margin: 0;
}

/* CTA band */
.cta-band {
  margin: 0 24px 90px;
  border-radius: 24px;
  background: linear-gradient(160deg, rgba(124,107,255,0.14), rgba(110,231,255,0.06));
  border: 1px solid rgba(255,255,255,0.08);
  padding: 70px 24px;
}
.cta-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.cta-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.cta-inner p {
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 32px;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 32px 24px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-dimmer);
  font-size: 13px;
}

@media (max-width: 720px) {
  .waitlist-form { flex-direction: column; }
  .feature-grid { grid-template-columns: 1fr; }
  .nav-inner { padding: 14px 18px; }
  .hero { padding-top: 70px; }
}