.section-inner,
.nav-shell {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(18px);
}

.nav-shell {
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

.brand-link,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 760;
}

.brand-mark,
.footer-brand img {
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(52, 80, 160, 0.18);
}

.site-nav {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.site-nav a {
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.94rem;
  padding: 0.48rem 0.75rem;
  transition: background 160ms ease, color 160ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: color-mix(in srgb, var(--brand) 13%, transparent);
  color: var(--text);
}

.menu-button {
  display: none;
}

.theme-button {
  min-width: 4.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  padding: 0.48rem 0.75rem;
  transition: transform 160ms ease, border-color 160ms ease;
}

.theme-button:hover {
  border-color: color-mix(in srgb, var(--brand) 46%, var(--line));
  transform: translateY(-1px);
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: min(760px, calc(100svh - var(--header-height)));
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.home-hero {
  min-height: 76svh;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(115deg, rgba(90, 92, 240, 0.18), rgba(0, 169, 200, 0.14) 46%, rgba(31, 157, 122, 0.1)),
    linear-gradient(180deg, transparent, color-mix(in srgb, var(--bg) 92%, transparent));
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 690px;
  padding: 6.5rem 0 5rem;
  margin-left: max(1rem, calc((100vw - var(--max-width)) / 2));
}

.hero-slogan {
  width: min(100%, 9em);
  margin-bottom: 1rem;
  color: var(--text);
  font-size: 3.7rem;
  font-weight: 780;
  line-height: 1.08;
}

.hero-copy {
  max-width: 38rem;
  font-size: 1.18rem;
}

.hero-art {
  position: absolute;
  right: max(1rem, calc((100vw - var(--max-width)) / 2));
  bottom: -2.4rem;
  width: min(38vw, 410px);
  z-index: 1;
  filter: drop-shadow(0 34px 60px rgba(36, 53, 92, 0.24));
}

.section {
  padding: 5.4rem 0;
}

.section-quiet {
  background: color-mix(in srgb, var(--bg-soft) 70%, transparent);
}

.section-heading {
  max-width: 760px;
  text-align: center;
  margin-bottom: 2rem;
}

.section-heading p {
  font-size: 1.05rem;
}

.align-left {
  text-align: left;
  margin: 0;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.1fr);
  gap: 3rem;
  align-items: start;
}

.cta-band {
  padding: 4rem 0;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(90, 92, 240, 0.13), rgba(0, 169, 200, 0.1)),
    var(--bg-elevated);
  box-shadow: var(--shadow);
  padding: clamp(1.3rem, 4vw, 2.2rem);
}

.cta-inner h2 {
  font-size: 2.25rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-soft) 78%, transparent);
  padding: 2.5rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: start;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  justify-content: center;
}

.footer-links a {
  color: var(--muted);
}

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

.footer-meta {
  text-align: right;
}

.footer-meta p,
.site-footer p {
  margin: 0.35rem 0 0;
}

@media (max-width: 900px) {
  .nav-shell {
    grid-template-columns: auto auto auto;
  }

  .menu-button {
    display: inline-flex;
    justify-self: end;
  }

  .site-nav {
    position: fixed;
    left: 1rem;
    right: 1rem;
    top: calc(var(--header-height) + 0.75rem);
    display: grid;
    gap: 0.35rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg) 96%, transparent);
    box-shadow: var(--shadow);
    padding: 0.7rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition: opacity 160ms ease, transform 160ms ease;
  }

  .nav-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    border-radius: var(--radius);
    padding: 0.7rem 0.8rem;
  }

  .hero {
    min-height: auto;
  }

  .home-hero {
    min-height: 82svh;
  }

  .hero-inner {
    padding: 5rem 0 17rem;
    margin: 0 auto;
    width: min(var(--max-width), calc(100% - 2rem));
  }

  .hero-art {
    right: 1rem;
    bottom: -4rem;
    width: min(78vw, 330px);
    opacity: 0.9;
  }

  h1 {
    font-size: 4.4rem;
  }

  h2 {
    font-size: 2.35rem;
  }

  .hero-slogan {
    font-size: 3rem;
  }

  .hero-copy {
    font-size: 1.08rem;
  }

  .split-section,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-meta {
    text-align: left;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  h1 {
    font-size: 3.05rem;
  }

  h2 {
    font-size: 2rem;
  }

  .section {
    padding: 4rem 0;
  }

  .section-inner,
  .nav-shell {
    width: min(100% - 1.25rem, var(--max-width));
  }

  .brand-link span {
    max-width: 9.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .theme-button {
    min-width: 4rem;
    padding-inline: 0.55rem;
  }

  .hero-actions,
  .inline-actions {
    width: 100%;
  }

  .hero-actions .button,
  .inline-actions .button,
  .cta-inner .button {
    width: 100%;
  }

  .cta-inner {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-slogan {
    font-size: 2.25rem;
  }

  .cta-inner h2 {
    font-size: 1.85rem;
  }
}