:root {
  --bg: #ffffff;
  --text: #0a0a0a;
  --muted: #555555;
  --line: #d8d8d8;
  --soft: #f6f6f6;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

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

.site-header,
main,
.site-footer {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  text-decoration: none;
}

.site-nav,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 15px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--text);
  border-radius: 4px;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  background: #333333;
}

.button-secondary {
  background: var(--bg);
  color: var(--text);
}

.button-secondary:hover {
  background: var(--soft);
}

.button-small {
  min-height: 38px;
  padding: 0 14px;
  font-size: 14px;
}

.hero {
  padding: 76px 0 40px;
}

.hero-copy {
  max-width: 860px;
}

.ai-disclaimer {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto 24px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--text);
  border-radius: 4px;
  background: var(--soft);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

.legal-summary-links {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.legal-summary-links a {
  font-weight: 600;
}

.benefits-list {
  list-style: none;
  padding: 0;
  margin: 36px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 28px;
}

.benefits-list li {
  position: relative;
  padding-left: 34px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
}

.benefits-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 22px;
  height: 22px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23111' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='4 12 10 18 20 6'/></svg>");
  background-repeat: no-repeat;
  background-size: contain;
}

.demo {
  margin-top: 4px;
}

.demo-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0a0a0a;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.demo-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #0a0a0a;
  display: block;
}

.demo-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
  color: #cfcfcf;
  font-size: 16px;
}

.demo-fallback[hidden] {
  display: none;
}

.demo-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.demo-tab {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 13px 15px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: inherit;
  font-weight: 700;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.demo-tab:hover {
  color: var(--text);
  border-color: #b5b5b5;
}

.demo-tab.is-active {
  color: var(--text);
  border-color: var(--text);
}

.demo-tab-name {
  font-size: 16px;
  line-height: 1.2;
}

.demo-tab-bar {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
}

.demo-tab-fill {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--text);
  border-radius: inherit;
  transform: scaleX(0);
  transform-origin: left center;
}

.demo-tab.is-active .demo-tab-fill {
  transition: transform 0.25s linear;
}

.contacts-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.contacts-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  font-size: 20px;
}

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

.contacts-list a {
  font-weight: 600;
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.2;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 22px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.section {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature-list > article {
  grid-column: span 2;
}

.feature-list > article:nth-child(4),
.feature-list > article:nth-child(5) {
  grid-column: span 3;
}

.feature-list article,
.simple-grid article {
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-list p,
.simple-grid p,
.steps p,
.cta p,
.legal-summary p,
.legal-page p,
.legal-page li,
.site-footer p {
  color: var(--muted);
}

.steps {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.steps span {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--text);
  border-radius: 50%;
  font-weight: 700;
}

.simple-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cta > div {
  max-width: 720px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.check-list li {
  position: relative;
  padding-left: 36px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23111' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='4 12 10 18 20 6'/></svg>");
  background-repeat: no-repeat;
  background-size: contain;
}

.legal-summary {
  max-width: 760px;
  margin-left: 0;
}

.legal-summary p,
.legal-summary li,
.legal-summary a {
  font-size: 14px;
  line-height: 1.5;
}

.legal-page {
  max-width: 860px;
}

.legal-page h1 {
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.1;
  margin-bottom: 18px;
}

.legal-page h2 {
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.2;
}

.legal-card {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.legal-list {
  padding-left: 22px;
}

.legal-list li + li {
  margin-top: 8px;
}

.legal-list-danger li {
  padding-left: 6px;
}

.legal-meta {
  margin-top: -8px;
  color: var(--muted);
  font-size: 14px;
}

.warning-card {
  border-left: 4px solid var(--text);
  padding-left: 18px;
  background: var(--soft);
  border-top-color: transparent;
  margin-top: 12px;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 0 42px;
  font-size: 15px;
}

.site-footer p {
  margin-bottom: 0;
}

@media (max-width: 860px) {
  .site-header,
  .site-footer,
  .cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 48px;
  }

  .feature-list,
  .simple-grid,
  .benefits-list {
    grid-template-columns: 1fr;
  }

  .demo-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-tab {
    padding: 11px 12px;
  }

  .demo-tab-name {
    font-size: 15px;
  }

  .feature-list > article,
  .feature-list > article:nth-child(4),
  .feature-list > article:nth-child(5) {
    grid-column: auto;
  }

  .lead {
    font-size: 19px;
  }
}