:root {
  --bg: #0d1117;
  --bg-elevated: #161b22;
  --text: #e6edf3;
  --muted: #8b949e;
  --blue: #58a6ff;
  --green: #3fb950;
  --border: #30363d;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: var(--blue);
  text-decoration: none;
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}

.topbar {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  position: sticky;
  top: 0;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.logo span {
  color: var(--green);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: var(--bg-elevated);
  color: var(--text);
}

.btn-primary {
  background: var(--green);
  border-color: var(--green);
  color: #0d1117;
}

.btn-ghost {
  background: transparent;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 56px 20px 40px;
  align-items: center;
}

@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
  }
}

.hero h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  margin: 0 0 14px;
}

.subhead {
  color: var(--muted);
  font-size: 17px;
  margin: 0 0 22px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-shot-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.demo {
  text-align: center;
  padding: 28px 20px 40px;
}

.demo-label {
  color: var(--muted);
  margin: 0 0 10px;
}

.demo-link {
  font-size: 18px;
  font-weight: 600;
}

.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  padding: 20px 20px 48px;
}

@media (max-width: 800px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.feature-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.pricing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 20px 20px 48px;
}

@media (max-width: 640px) {
  .pricing {
    grid-template-columns: 1fr;
  }
}

.price-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.price-card-pro {
  border-color: rgba(88, 166, 255, 0.4);
}

.price-card h2 {
  margin: 0 0 4px;
}

.price-tag {
  color: var(--muted);
  margin: 0 0 16px;
}

.founding {
  color: var(--green);
}

.price-card ul {
  margin: 0 0 20px;
  padding-left: 18px;
  color: var(--muted);
}

.wtp {
  padding: 20px 20px 64px;
  max-width: 560px;
}

.wtp h2 {
  font-size: 20px;
  margin: 0 0 16px;
}

.wtp-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.wtp-pick {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
}

.wtp-pick.active {
  border-color: var(--blue);
  color: var(--blue);
}

.wtp-email-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.wtp-email-row input {
  flex: 1;
  min-width: 200px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.wtp-msg {
  margin-top: 12px;
  font-size: 14px;
}

.wtp-msg.ok {
  color: var(--green);
}

.wtp-msg.err {
  color: #f85149;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}