:root {
  --sai-bg: #fafafa;
  --sai-bg-2: #ffffff;
  --sai-text: #111111;
  --sai-muted: rgba(17, 17, 17, .62);
  --sai-line: rgba(17, 17, 17, .10);
  --sai-card: #ffffff;
  --sai-soft-card: #f7f7f7;
  --sai-black: #000000;
  --sai-orange: #ff9900;
  --sai-radius: 10px;
  --sai-shadow: 0 12px 34px rgba(17, 17, 17, .075);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body[data-page="home"] {
  margin: 0;
  min-height: 100vh;
  color: var(--sai-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 18% 0%, rgba(17, 17, 17, .045), transparent 34%),
    radial-gradient(circle at 82% 8%, rgba(17, 17, 17, .035), transparent 30%),
    linear-gradient(145deg, var(--sai-bg), var(--sai-bg-2));
}

body[data-page="home"] a {
  color: inherit;
  text-decoration: none;
}

body[data-page="home"] button {
  font: inherit;
  border: 0;
  cursor: pointer;
}

.sai-home-header,
.sai-home-hero,
.sai-home-section,
.sai-home-footer {
  width: min(100% - 28px, 1180px);
  margin-left: auto;
  margin-right: auto;
}

.sai-home-header {
  min-height: 70px;
  margin-top: 14px;
  padding: 10px;
  position: sticky;
  top: 14px;
  z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--sai-line);
  border-radius: var(--sai-radius);
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--sai-shadow);
  backdrop-filter: blur(22px) saturate(170%);
  -webkit-backdrop-filter: blur(22px) saturate(170%);
}

.sai-home-brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.sai-home-brand-logo {
  width: clamp(34px, 4vw, 46px);
  height: auto;
  max-width: 46px;
  max-height: 46px;
  display: block;
  flex: 0 0 auto;
  object-fit: contain;
  border-radius: var(--sai-radius);
}

.sai-home-brand span:last-child {
  display: grid;
  gap: 1px;
}

.sai-home-brand strong {
  font-size: 14px;
  font-weight: 950;
}

.sai-home-brand em {
  color: var(--sai-muted);
  font-size: 12px;
  font-style: normal;
}

.sai-home-nav,
.sai-home-header-actions {
  display: flex;
  align-items: center;
}

.sai-home-nav {
  justify-self: center;
  gap: 6px;
}

.sai-home-header-actions {
  justify-content: flex-end;
  gap: 8px;
}

.sai-home-nav a,
.sai-home-header-link {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border-radius: var(--sai-radius);
  color: var(--sai-muted);
  font-size: 14px;
  font-weight: 800;
}

.sai-home-nav a:hover,
.sai-home-header-link:hover {
  background: rgba(17, 17, 17, .055);
  color: var(--sai-text);
}

.sai-home-header-action,
.sai-home-btn-primary {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 16px;
  border-radius: var(--sai-radius);
  background: var(--sai-black);
  color: #ffffff !important;
  font-size: 14px;
  font-weight: 950;
  box-shadow: 0 12px 24px rgba(17, 17, 17, .16);
  transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
}

.sai-home-hero .sai-home-btn-primary {
  background: #ff9900;
  box-shadow: 0 12px 24px rgba(255, 153, 0, .24);
}

.sai-home-header-action:hover,
.sai-home-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(17, 17, 17, .20);
}

.sai-home-hero .sai-home-btn-primary:hover {
  box-shadow: 0 18px 34px rgba(255, 153, 0, .30);
}

.sai-home-menu-btn {
  width: 42px;
  height: 42px;
  display: none;
  place-items: center;
  gap: 4px;
  padding: 10px;
  border-radius: var(--sai-radius);
  background: rgba(17, 17, 17, .055);
}

.sai-home-menu-btn span {
  width: 18px;
  height: 2px;
  display: block;
  border-radius: 999px;
  background: var(--sai-text);
}

.sai-home-hero {
  min-height: calc(100vh - 98px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 0 44px;
  text-align: center;
}

.sai-home-hero-copy {
  width: min(100%, 980px);
  padding: clamp(30px, 6vw, 76px);
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.sai-home-hero h1,
.sai-home-section h2,
.sai-home-final-cta h2 {
  margin: 0;
  color: var(--sai-text);
  font-weight: 950;
  line-height: .94;
}

.sai-home-hero h1 {
  max-width: 900px;
  margin: 0 auto;
  font-size: clamp(48px, 7vw, 94px);
}

.sai-home-lead,
.sai-home-section-head p,
.sai-home-final-cta p {
  color: var(--sai-muted);
  font-size: 17px;
  line-height: 1.72;
}

.sai-home-lead {
  max-width: 760px;
  margin: 22px auto 0;
}

.sai-home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.sai-home-actions-centered {
  justify-content: center;
}

.sai-home-btn-primary {
  min-height: 50px;
  padding: 0 22px;
}

.sai-home-cta-note,
.sai-home-final-cta small {
  margin: 12px 0 0;
  color: var(--sai-muted);
  font-size: 14px;
  font-weight: 800;
}

.sai-home-section {
  padding: 40px 0;
}

.sai-home-section-head {
  max-width: 780px;
  margin-bottom: 20px;
}

.sai-home-section-head-center {
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.sai-home-section h2,
.sai-home-final-cta h2 {
  font-size: clamp(36px, 5vw, 64px);
}

.sai-home-kicker {
  width: fit-content;
  margin: 0 auto 16px;
  padding: 8px 10px;
  border-radius: var(--sai-radius);
  background: rgba(17, 17, 17, .055);
  color: var(--sai-text);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.sai-home-section-head:not(.sai-home-section-head-center) .sai-home-kicker {
  margin-left: 0;
}

.sai-home-feature-grid,
.sai-home-channel-grid,
.sai-home-step-grid {
  display: grid;
  gap: 12px;
}

.sai-home-feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sai-home-support-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sai-home-channel-grid-clean {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.sai-home-feature-card,
.sai-home-channel-grid article,
.sai-home-step-grid article,
.sai-home-final-cta {
  border: 1px solid var(--sai-line);
  border-radius: var(--sai-radius);
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--sai-shadow);
}

.sai-home-feature-card,
.sai-home-channel-grid article {
  min-height: 250px;
  display: flex;
  flex-direction: column;
  padding: 22px;
}

.sai-home-icon,
.sai-home-channel-grid span,
.sai-home-step-grid strong {
  width: 46px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: var(--sai-radius);
  background: var(--sai-black);
  color: #ffffff;
  font-size: 12px;
  font-weight: 950;
}

.sai-home-feature-card h3,
.sai-home-channel-grid h3 {
  margin: auto 0 10px;
  font-size: 26px;
  line-height: 1.05;
}

.sai-home-feature-card p,
.sai-home-channel-grid p {
  color: var(--sai-muted);
  line-height: 1.62;
}

.sai-home-steps {
  display: grid;
  grid-template-columns: .9fr 1.4fr;
  gap: 18px;
  align-items: start;
}

.sai-home-step-grid article {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 6px 18px;
  padding: 22px;
}

.sai-home-step-grid strong {
  grid-row: span 2;
}

.sai-home-step-grid h3 {
  margin: 0;
  font-size: 24px;
  line-height: 1.1;
}

.sai-home-step-grid p {
  margin: 0;
  color: var(--sai-muted);
  line-height: 1.62;
}

.sai-home-final-cta {
  display: grid;
  justify-items: center;
  text-align: center;
  padding: clamp(30px, 6vw, 70px);
}

.sai-home-final-cta p {
  max-width: 700px;
}

.sai-home-final-cta .sai-home-btn-primary {
  margin-top: 8px;
}

.sai-home-footer {
  min-height: 76px;
  margin-top: 28px;
  margin-bottom: 14px;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid var(--sai-line);
  color: var(--sai-muted);
}

.sai-home-footer strong {
  color: var(--sai-text);
}

.sai-home-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  font-weight: 800;
}

.sai-home-footer a:hover {
  color: var(--sai-text);
}

@media (max-width: 980px) {
  .sai-home-header {
    grid-template-columns: 1fr auto;
    row-gap: 0;
    padding-bottom: 10px;
  }

  body.sai-menu-open .sai-home-header {
    position: relative;
    top: auto;
    row-gap: 8px;
  }

  .sai-home-menu-btn {
    display: grid;
    justify-self: end;
  }

  .sai-home-nav,
  .sai-home-header-actions {
    grid-column: 1 / -1;
    width: 100%;
    min-width: 0;
    display: grid;
    grid-template-columns: 1fr;
    justify-content: stretch;
    justify-items: stretch;
    justify-self: stretch;
    gap: 6px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: max-height .34s ease, opacity .24s ease, transform .24s ease, visibility .24s ease;
  }

  body.sai-menu-open .sai-home-nav,
  body.sai-menu-open .sai-home-header-actions {
    max-height: 320px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .sai-home-nav a,
  .sai-home-header-link,
  .sai-home-header-action {
    width: 100%;
    max-width: none;
    min-height: 44px;
    display: flex;
    justify-content: center;
  }

  .sai-home-header-actions {
    padding-top: 0;
  }

  .sai-home-support-grid,
  .sai-home-steps {
    grid-template-columns: 1fr;
  }

  .sai-home-channel-grid-clean {
    grid-template-columns: 1fr 1fr;
  }

  .sai-home-hero {
    min-height: auto;
    padding: 24px 0 44px;
  }
}

@media (max-width: 680px) {
  .sai-home-header,
  .sai-home-hero,
  .sai-home-section,
  .sai-home-footer {
    width: min(100% - 20px, 1180px);
  }

  .sai-home-hero-copy {
    padding: 28px 18px;
  }

  .sai-home-brand-logo {
    width: 34px;
    max-width: 34px;
    max-height: 34px;
  }

  .sai-home-hero h1 {
    font-size: clamp(42px, 14vw, 58px);
  }

  .sai-home-channel-grid-clean,
  .sai-home-support-grid {
    grid-template-columns: 1fr;
  }

  .sai-home-actions,
  .sai-home-btn-primary {
    width: 100%;
  }

  .sai-home-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}