:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface-high: #21262d;
  --on-surface: #dae3ee;
  --on-surface-variant: #8b949e;
  --outline: #30363d;
  --green: #62ff96;
  --green-dim: #aff2c4;
  --blue: #b0c6ff;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 900px 500px at 50% -10%, rgba(176, 198, 255, 0.08), transparent 70%),
    radial-gradient(ellipse 700px 400px at 90% 100%, rgba(98, 255, 150, 0.05), transparent 60%),
    var(--bg);
  color: var(--on-surface);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  border-bottom: 1px solid var(--outline);
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header-inner,
.page,
.site-footer-inner {
  max-width: calc(var(--max-width) + 48px);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--on-surface);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #238636, #62ff96);
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 800;
  color: #0d1117;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-tagline {
  font-size: 12px;
  color: var(--on-surface-variant);
}

.nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--on-surface-variant);
  font-size: 14px;
  font-weight: 500;
}

.nav a:hover,
.nav a.active {
  color: var(--green);
  text-decoration: none;
}

.page {
  padding: 48px 24px 80px;
}

.hero {
  margin-bottom: 40px;
}

.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}

h1 {
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.15;
  font-weight: 700;
  margin-bottom: 12px;
}

.lead {
  color: var(--on-surface-variant);
  font-size: 18px;
  max-width: 560px;
}

.card-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  border: 1px solid var(--outline);
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 24px;
  transition: border-color 0.15s ease;
}

.card:hover {
  border-color: rgba(98, 255, 150, 0.35);
}

.card h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.card p {
  color: var(--on-surface-variant);
  font-size: 14px;
  margin-bottom: 16px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
}

.content h2 {
  font-size: 20px;
  margin: 32px 0 12px;
}

.content h3 {
  font-size: 16px;
  margin: 24px 0 8px;
  color: var(--green-dim);
}

.content p,
.content li {
  color: var(--on-surface-variant);
  margin-bottom: 12px;
}

.content ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.content strong {
  color: var(--on-surface);
}

.faq {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.faq-item {
  border: 1px solid var(--outline);
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--on-surface);
}

.faq-item p {
  margin: 0;
  font-size: 14px;
}

.contact-box {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--outline);
  border-radius: var(--radius-xl);
  background: var(--surface);
}

.contact-box a {
  color: var(--green);
  font-weight: 600;
}

.meta {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--outline);
  font-size: 13px;
  color: var(--on-surface-variant);
}

.site-footer {
  border-top: 1px solid var(--outline);
  padding: 24px 0 32px;
}

.site-footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  font-size: 13px;
  color: var(--on-surface-variant);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.badge {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--outline);
  background: var(--surface-high);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green-dim);
}

/* Marketing page */
.marketing-page {
  max-width: 960px;
}

.marketing-hero {
  text-align: center;
  padding: 24px 0 56px;
}

.marketing-hero .lead {
  margin: 0 auto 24px;
  max-width: 640px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: var(--radius-lg);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, #238636, #62ff96);
  color: #0d1117;
  box-shadow: 0 8px 24px rgba(98, 255, 150, 0.2);
}

.btn-secondary {
  border: 1px solid var(--outline);
  background: var(--surface);
  color: var(--on-surface);
}

.feature-grid {
  display: grid;
  gap: 16px;
  margin: 48px 0;
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  border: 1px solid var(--outline);
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 28px;
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--surface-high);
  border: 1px solid var(--outline);
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.feature-card h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--on-surface-variant);
  font-size: 15px;
  margin: 0;
}

.demo-block {
  margin: 56px 0;
  padding: 32px;
  border: 1px solid var(--outline);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(176, 198, 255, 0.06), rgba(98, 255, 150, 0.04)),
    var(--surface);
  text-align: center;
}

.demo-block .quote {
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--on-surface);
  margin-bottom: 12px;
}

.demo-block .answer {
  color: var(--green);
  font-size: 15px;
  font-weight: 600;
}

.use-cases {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

@media (min-width: 640px) {
  .use-cases {
    grid-template-columns: repeat(3, 1fr);
  }
}

.use-case {
  padding: 20px;
  border: 1px solid var(--outline);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.use-case h3 {
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--green-dim);
}

.use-case p {
  font-size: 13px;
  color: var(--on-surface-variant);
  margin: 0;
}

.premium-banner {
  margin-top: 56px;
  padding: 28px;
  border: 1px solid rgba(98, 255, 150, 0.25);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(35, 134, 54, 0.12), rgba(13, 17, 23, 0));
}

.premium-banner h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.premium-banner p {
  color: var(--on-surface-variant);
  margin-bottom: 0;
}

.premium-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.premium-list span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--on-surface-variant);
}

.premium-list span::before {
  content: "✓";
  color: var(--green);
  font-weight: 700;
}

.section-title {
  text-align: center;
  margin-bottom: 8px;
}

.section-subtitle {
  text-align: center;
  color: var(--on-surface-variant);
  max-width: 560px;
  margin: 0 auto 24px;
}