/* Header / Top nav — exact v0.app template (Auw4otwlr20) design */

:root {
  --charcoal: #161d1f;
  --charcoal-2: #494551;
  --pink-deep: #4f378a;
  --pink-accent: #6750a4;
  --sakura: #e9ddff;
  --ivory: #f4fafd;
  --bg-gradient-static: linear-gradient(135deg, #f4fafd 0%, #eef5f7 64%, #e9ddff 100%);
  --bg-gradient-animated: linear-gradient(135deg, #f4fafd, #eef5f7, #e9ddff);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header, 100);
  height: 72px;
  display: flex;
  align-items: center;
  background: var(--color-surface-lowest, #ffffff) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border-bottom: none !important;
  transition: background-color var(--dur-medium, 300ms) ease, border-color var(--dur-medium, 300ms) ease, box-shadow var(--dur-medium, 300ms) ease;
}

/* Ensure all page content starts cleanly below fixed 72px header on non-home pages */
body:not(.page-home) {
  padding-top: 80px !important;
}

/* Non-home pages need an opaque fixed bar so scrolling content never shows through it. */
body:not(.page-home) .site-header {
  position: fixed;
  background: var(--color-surface-lowest, #ffffff) !important;
  border-bottom: 1px solid var(--color-outline-variant) !important;
  box-shadow: 0 5px 20px rgba(22, 29, 31, 0.08);
}

.site-header__inner {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-header__brand {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary) !important;
  letter-spacing: -0.04em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-header__brand span.tm {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-outline);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-header__nav a,
.site-header__nav button.platform-nav-disabled,
.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-on-surface-variant) !important;
  text-decoration: none;
  position: relative;
  transition: color 300ms ease;
}

.site-header__nav button.platform-nav-disabled {
  border: 0;
  padding: 0;
  background: transparent;
  cursor: default;
  opacity: 0.7;
}

.site-header__nav a:hover,
.site-header__nav button.platform-nav-disabled:hover,
.nav-link:hover {
  color: var(--color-primary) !important;
}

.site-header__nav a::after,
.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width 300ms ease;
}

.site-header__nav a:hover::after,
.nav-link:hover::after {
  width: 100%;
}

.nav-tools-dropdown {
  display: inline-flex;
  align-items: center;
}

.nav-tools-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 0;
  border: 0;
  background: transparent;
  color: var(--color-on-surface-variant);
  font: inherit;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: color 300ms ease;
}

.nav-tools-trigger:hover,
.nav-tools-trigger.is-active,
.dropdown.is-open .nav-tools-trigger {
  color: var(--color-primary);
}

.nav-tools-trigger__chevron {
  font-size: 0.7em;
  transition: transform 180ms ease;
}

.dropdown.is-open .nav-tools-trigger__chevron {
  transform: rotate(180deg);
}

.nav-tools-menu {
  top: calc(100% + 10px);
  right: auto;
  left: 0;
  min-width: 184px;
}

.nav-tools-menu .dropdown__item {
  gap: 10px;
}

.nav-tools-menu .dropdown__item i {
  width: 18px;
  color: inherit;
  text-align: center;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-header__spacer {
  flex: 1;
}