/* Clean Wonder Sciences opening: typography, space, and three precise ideas. */
:root {
  --clean-paper: #f5f6f4;
  --clean-ink: #11202a;
  --clean-muted: #53616a;
  --clean-line: rgba(17, 32, 42, 0.18);
}

.site-header {
  color: var(--clean-ink);
  background: rgba(245, 246, 244, 0.94) !important;
  border-bottom-color: var(--clean-line);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 88px !important;
  height: 88px;
  padding-block: 0 !important;
}

.site-header nav a:hover {
  color: #6c675b;
}

.site-header .nav-cta {
  border-color: rgba(17, 32, 42, 0.42);
}

.hero-clean {
  display: block;
  min-height: min(960px, 100svh);
  height: auto;
  max-height: none;
  overflow: hidden;
  color: var(--clean-ink);
  background:
    radial-gradient(circle at 84% 22%, rgba(92, 125, 143, 0.09), transparent 30%),
    var(--clean-paper);
}

.hero-clean .hero-content {
  width: 100%;
  padding-top: clamp(170px, 19vh, 220px);
  padding-bottom: clamp(96px, 12vh, 135px);
}

.hero-clean .hero-eyebrow {
  max-width: none;
  margin: 0 0 clamp(28px, 4vh, 46px);
  color: var(--clean-muted);
  font-size: 12px;
  letter-spacing: 0.17em;
}

.hero-clean h1 {
  max-width: 1360px;
  color: var(--clean-ink);
  font-size: clamp(54px, 6.25vw, 104px);
  font-weight: 470;
  line-height: 1.01;
  letter-spacing: -0.064em;
  text-wrap: balance;
}

.hero-clean .hero-bottom {
  display: grid;
  grid-template-columns: minmax(0, 790px) auto;
  justify-content: space-between;
  align-items: end;
  gap: 56px 90px;
  max-width: none;
  margin-top: clamp(44px, 6vh, 72px);
}

.hero-clean .hero-bottom > p {
  max-width: 790px;
  color: var(--clean-muted);
  font-size: clamp(17px, 1.25vw, 20px);
  line-height: 1.76;
  letter-spacing: -0.013em;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 4px;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 650;
}

.hero-actions a {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(17, 32, 42, 0.5);
  transition: border-color 180ms ease, transform 180ms ease;
}

.hero-actions a:hover {
  border-bottom-color: var(--clean-ink);
  transform: translateY(-2px);
}

.hero-actions a span {
  font-size: 17px;
  line-height: 1;
}

.action-divider {
  color: #929b9f;
}

.text-separator {
  display: none;
}

.trajectory {
  position: relative;
  overflow: clip;
  color: #f4f7f8;
  background: #11212c;
}

.trajectory-lines {
  padding-block: 25px;
}

.trajectory-lines p {
  display: grid;
  grid-template-columns: minmax(190px, 265px) minmax(0, 1fr);
  gap: 30px;
  margin: 0;
  padding: clamp(30px, 4vw, 49px) 0;
  border-bottom: 1px solid rgba(218, 231, 237, 0.18);
  color: #c6d2d8;
  font-size: clamp(17px, 1.5vw, 23px);
  line-height: 1.58;
  letter-spacing: -0.018em;
}

.trajectory-lines p:last-child {
  border-bottom: 0;
}

.trajectory-lines strong {
  color: #ffffff;
  font-weight: 560;
  letter-spacing: -0.025em;
}

@media (max-width: 850px) {
  .site-header nav {
    top: 88px;
    color: var(--clean-ink);
    background: var(--clean-paper);
  }

  .site-header nav > a {
    border-bottom-color: var(--clean-line);
  }

  .site-header nav .nav-cta {
    border-color: rgba(17, 32, 42, 0.45);
  }

  .menu-toggle {
    color: var(--clean-ink);
  }

  .menu-icon i {
    background: var(--clean-ink);
  }

  body.menu-open .site-header {
    background: var(--clean-paper) !important;
  }

  .hero-clean {
    min-height: auto;
  }

  .hero-clean .hero-content {
    padding-top: 155px;
    padding-bottom: 90px;
  }

  .hero-clean h1 {
    font-size: clamp(50px, 9.2vw, 77px);
  }

  .hero-clean .hero-bottom {
    grid-template-columns: 1fr;
    gap: 35px;
  }

  .hero-actions {
    white-space: normal;
  }
}

@media (max-width: 540px) {
  .header-inner {
    min-height: 78px !important;
    height: 78px;
  }

  .site-header nav {
    top: 78px;
  }

  .hero-clean .hero-content {
    padding-top: 128px;
    padding-bottom: 72px;
  }

  .hero-clean .hero-eyebrow {
    margin-bottom: 25px;
    font-size: 11px;
  }

  .hero-clean h1 {
    font-size: clamp(42px, 12.1vw, 60px);
    line-height: 1.04;
    letter-spacing: -0.058em;
    text-wrap: pretty;
  }

  .hero-clean .hero-bottom {
    margin-top: 36px;
  }

  .hero-clean .hero-bottom > p {
    max-width: none;
    font-size: 16px;
    line-height: 1.72;
  }

  .hero-actions {
    flex-wrap: wrap;
    gap: 12px 14px;
    font-size: 13px;
  }

  .trajectory-lines {
    padding-block: 10px;
  }

  .trajectory-lines p {
    grid-template-columns: 1fr;
    gap: 9px;
    padding: 29px 0 31px;
    font-size: 16px;
    line-height: 1.68;
  }

  .trajectory-lines strong {
    font-size: 19px;
  }
}

@media (max-width: 620px) {
  .model-label {
    display: none;
  }

  .intelligence-footnote {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-actions a {
    transition: none;
  }
}

.site-header .brand img {
  width: 236px;
  height: auto;
  filter: none;
}

@media (max-width: 540px) {
  .site-header .brand img {
    width: 205px;
  }
}