/* Mantavyam glass header — vanilla CSS, no Tailwind dep, ships first paint */
.mant-header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1400px;
  z-index: 50;
  font-family: inherit;
  transition: max-width 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.mant-header[data-state="contracted"],
.mant-header[data-state="expanded"] {
  max-width: 720px;
}
@media (max-width: 991px) {
  .mant-header,
  .mant-header[data-state="contracted"],
  .mant-header[data-state="expanded"] {
    max-width: 720px;
  }
}

.mant-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  background: rgba(20, 20, 20, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25), inset 0 0 32px rgba(255, 255, 255, 0.05);
  color: #ffffff;
}

.mant-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}
.mant-logo img {
  height: 28px;
  width: auto;
  display: block;
}
.mant-logo-name {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.mant-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap;
  overflow: hidden;
  transition: opacity 0.3s ease, max-width 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: 1000px;
}
.mant-links li { margin: 0; }
.mant-links a {
  color: inherit;
  text-decoration: none;
  font-size: 13.5px;
  letter-spacing: 0.01em;
  transition: opacity 0.2s ease;
  display: inline-block;
}
.mant-links a:hover { opacity: 0.6; }
.mant-links a[aria-current="page"] { opacity: 0.55; }

.mant-header[data-state="contracted"] .mant-links,
.mant-header[data-state="expanded"] .mant-links {
  opacity: 0;
  max-width: 0;
  pointer-events: none;
  margin: 0;
}

.mant-burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 28px;
  height: 28px;
  background: transparent;
  border: 0;
  padding: 4px;
  cursor: pointer;
  flex-shrink: 0;
}
.mant-burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s ease;
  transform-origin: center;
}
.mant-header[data-state="expanded"] .mant-burger span:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}
.mant-header[data-state="expanded"] .mant-burger span:nth-child(2) {
  transform: translateY(-3px) rotate(-45deg);
}

.mant-drawer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s ease, margin-top 0.3s ease;
  margin-top: 0;
}
.mant-header[data-state="expanded"] .mant-drawer {
  grid-template-rows: 1fr;
  margin-top: 8px;
}
.mant-drawer-clip { overflow: hidden; }
.mant-drawer-inner {
  background: rgba(20, 20, 20, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  padding: 18px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  color: #ffffff;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}
.mant-drawer-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.5);
  margin: 0 0 6px;
}
.mant-drawer-menu {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mant-drawer-menu a {
  font-size: 22px;
  font-weight: 500;
  color: inherit;
  text-decoration: none;
  width: fit-content;
  transition: opacity 0.2s ease;
}
@media (min-width: 768px) {
  .mant-drawer-menu a { font-size: 28px; }
}
.mant-drawer-menu a:hover { opacity: 0.6; }
.mant-drawer-info {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.mant-drawer-info > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mant-drawer-info a {
  color: inherit;
  text-decoration: none;
  font-size: 14px;
  display: block;
  transition: opacity 0.2s ease;
}
.mant-drawer-info a:hover { opacity: 0.6; }