/* Hara public-site shell, aligned with www.hara-lang.org and the
   hara-lang/visual-language precision-material specification. */

:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

.site-header {
  position: fixed;
  z-index: 40;
  inset: 0 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  min-height: 64px;
  padding: 0 var(--hara-space-page);
  border-bottom: 1px solid var(--hara-line);
  background: color-mix(in srgb, var(--hara-bg) 84%, transparent);
  backdrop-filter: blur(22px) saturate(115%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .66rem;
  width: max-content;
  min-width: 0;
  color: var(--hara-text);
  font-family: var(--hara-font-sans);
  font-weight: 720;
  text-decoration: none;
}

.brand-logo {
  width: 27px;
  height: 27px;
  flex: none;
  border-radius: 6px;
}

.brand-name { letter-spacing: -.02em; }

.brand-product {
  position: relative;
  margin-left: .2rem;
  padding-left: .82rem;
  color: var(--hara-muted);
  font-size: .76rem;
  font-weight: 620;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.brand-product::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 1px;
  height: 18px;
  content: "";
  background: var(--hara-line-strong);
  transform: translateY(-50%);
}

.site-header nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vw, 2.4rem);
}

.site-header nav a {
  color: var(--hara-muted);
  font-family: var(--hara-font-sans);
  font-size: .86rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--hara-motion-fast) ease;
}

.site-header nav a:hover { color: var(--hara-text); }

.header-actions {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: .42rem;
}

.hara-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: .42rem .7rem;
  color: var(--hara-text);
  border: 1px solid var(--hara-line);
  border-radius: 999px;
  background: var(--hara-surface);
  font: 620 .78rem var(--hara-font-sans);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.hara-theme-toggle { gap: .45rem; }

.hara-theme-toggle:hover {
  border-color: var(--hara-line-strong);
  background: var(--hara-surface-raised);
}

.site-footer {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .7rem 1.4rem;
  min-height: 100px;
  padding: 1.5rem var(--hara-space-page);
  border-top: 1px solid var(--hara-line);
  color: var(--hara-muted);
  font-size: .82rem;
}

.site-footer > strong { color: var(--hara-text); }
.site-footer p { margin: 0; }
.site-colophon { justify-self: end; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--hara-text); }
.site-footer [aria-hidden="true"] { margin: 0 .35rem; color: var(--hara-faint); }

.ecosystem-links {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem 1.1rem;
  padding-top: .9rem;
  border-top: 1px solid var(--hara-line);
}

.ecosystem-links a,
.ecosystem-links span {
  color: var(--hara-muted);
  font-size: .78rem;
}

.ecosystem-links span[aria-current="page"] { color: var(--hara-text); }

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: .45rem;
    padding-inline: 14px;
  }

  .brand-name { display: none; }
  .brand-product { margin-left: 0; padding-left: 0; }
  .brand-product::before { display: none; }

  .site-header nav {
    display: flex;
    justify-content: flex-start;
    gap: .25rem;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-header nav::-webkit-scrollbar { display: none; }

  .site-header nav a {
    display: inline-flex !important;
    align-items: center;
    min-height: 34px;
    padding: .45rem .55rem;
    border-radius: 999px;
    font-size: .78rem;
  }

  .site-header nav a:hover { background: var(--hara-surface-raised); }

  .site-footer {
    grid-template-columns: 1fr;
    align-items: start;
    gap: .55rem;
  }

  .site-colophon { justify-self: start; }
  .ecosystem-links { grid-column: 1; }
}

@media (max-width: 560px) {
  .site-header nav a:nth-child(1),
  .site-header nav a:nth-child(2) { display: none !important; }
  .hara-theme-toggle { min-height: 34px; padding-inline: .55rem; }
  .hara-theme-toggle [data-hara-theme-label] { display: none; }
}