:root {
  --bg: #0b0f14;
  --bg-soft: #10151c;
  --border: #1f2733;
  --text: #e7edf3;
  --text-dim: #93a1b1;
  --green: #22c55e;
  --red: #ef4444;
  --focus: #4f9cff;
}

* { box-sizing: border-box; }

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

.glow {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(34,197,94,0.10) 0%, rgba(239,68,68,0.06) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 64px;
}

.mark {
  width: 28px;
  height: 28px;
}

.wordmark {
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
}

.hero h1 {
  font-size: clamp(1.9rem, 5vw, 2.9rem);
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.hero .sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 58ch;
  margin: 0 0 36px;
}

.waitlist {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

#email {
  flex: 1 1 260px;
  min-width: 0;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 1rem;
}

#email:focus {
  outline: none;
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(79,156,255,0.18);
}

#submit-btn {
  padding: 14px 22px;
  border-radius: 10px;
  border: none;
  background: var(--green);
  color: #04170a;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.05s ease;
}

#submit-btn:hover { filter: brightness(1.08); }
#submit-btn:active { transform: translateY(1px); }
#submit-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.form-message {
  min-height: 1.4em;
  margin: 12px 2px 0;
  font-size: 0.92rem;
  color: var(--text-dim);
}

.form-message.ok { color: var(--green); }
.form-message.err { color: var(--red); }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 72px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.feature h3 {
  font-size: 1rem;
  margin: 0 0 8px;
}

.feature p {
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
}

.foot {
  margin-top: 64px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

@media (max-width: 620px) {
  .features {
    grid-template-columns: 1fr;
  }
}