/* ============================================================================
   SIRO Header / Navbar widget — V3 markup parity.
   Loaded only when a Header widget is on the page.
   ============================================================================ */

.siro-nav {
  position: sticky;
  top: 0;
  z-index: var(--siro-z-nav);
  background: var(--siro-glass-bright);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--siro-outline-dark);
  padding: 18px var(--siro-space-10);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--siro-space-6);
  font-family: var(--siro-font-body);
}

.siro-nav--transparent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  border-bottom: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  padding: var(--siro-space-6) var(--siro-space-10);
}

/* ---- Logo --------------------------------------------------------------- */
.siro-nav__logo { display: inline-flex; align-items: center; }
.siro-nav__logo img { height: 40px; width: auto; display: block; }
.siro-nav--transparent .siro-nav__logo img { filter: brightness(0) invert(1); }
.siro-nav__logo-fallback {
  font-family: var(--siro-font-display);
  font-weight: 800;
  font-size: var(--siro-fs-xl);
  color: var(--siro-color-primary);
}
.siro-nav--transparent .siro-nav__logo-fallback { color: var(--siro-text-inverse); }

/* ---- Items wrap --------------------------------------------------------- */
.siro-nav__items-wrap {
  display: flex;
  align-items: center;
  gap: var(--siro-space-8);
}

.siro-nav__items {
  display: flex;
  align-items: center;
  gap: var(--siro-space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ---- Top-level item ----------------------------------------------------- */
.siro-nav__item { position: relative; }

.siro-nav__link {
  position: relative;
  color: var(--siro-color-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--siro-fs-sm);
  transition: color var(--siro-trans-fast);
  padding: 10px 0 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.siro-nav__link svg {
  width: 10px;
  height: 10px;
  fill: currentColor;
  opacity: 0.6;
  transition: transform var(--siro-trans-bouncy);
}
.siro-nav__item:hover .siro-nav__link svg { transform: rotate(180deg); }

.siro-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--siro-color-accent);
  transition: width var(--siro-trans);
}
.siro-nav__link:hover { color: var(--siro-color-accent); }
.siro-nav__link:hover::after { width: 100%; }

.siro-nav--transparent .siro-nav__link { color: var(--siro-text-inverse-muted); }
/* V3 .navbar--transparent: hover brightens to white (underline stays gold via ::after) */
.siro-nav--transparent .siro-nav__link:hover { color: var(--siro-text-inverse); }

/* ---- Dropdown ----------------------------------------------------------- */
.siro-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--siro-surface);
  border-radius: var(--siro-radius-md);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--siro-outline-dark);
  padding: var(--siro-space-6);
  min-width: 240px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--siro-trans-bouncy);
  display: grid;
  gap: var(--siro-space-4);
}

.siro-nav__item:hover .siro-dropdown,
.siro-nav__item:focus-within .siro-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.siro-dropdown--megamenu {
  min-width: 600px;
  grid-template-columns: 1fr 1fr;
}

.siro-dropdown__link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: var(--siro-radius-sm);
  transition: background var(--siro-trans-fast);
  color: inherit;
}
.siro-dropdown__link:hover { background: var(--siro-surface-low); }

.siro-dropdown__icon { font-size: 16px; }

.siro-dropdown__label { display: flex; flex-direction: column; gap: 2px; }

.siro-dropdown__title {
  font-size: var(--siro-fs-sm);
  font-weight: 600;
  color: var(--siro-text);
}

.siro-dropdown__desc {
  font-size: var(--siro-fs-xs);
  color: var(--siro-text-muted);
  line-height: 1.4;
}

/* ---- CTA ---------------------------------------------------------------- */
.siro-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--siro-color-accent);
  color: var(--siro-surface);
  padding: var(--siro-space-btn-y) var(--siro-space-btn-x);
  border-radius: var(--siro-radius-sm);
  font-family: var(--siro-font-body);
  font-weight: 600;
  font-size: var(--siro-fs-sm);
  text-decoration: none;
  transition: all var(--siro-trans-overshoot);
  white-space: nowrap;
}
.siro-nav__cta:hover {
  background-color: var(--siro-color-primary);
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--siro-shadow-cta-gold);
}

/* ---- Mobile toggle ------------------------------------------------------ */
.siro-nav__toggle {
  display: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-size: 22px;
  color: var(--siro-color-primary);
  padding: 8px;
  line-height: 1;
}
.siro-nav--transparent .siro-nav__toggle { color: var(--siro-text-inverse); }

.siro-nav__missing-menu {
  font-size: var(--siro-fs-sm);
  color: var(--siro-text-muted);
}

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 720px) {
  .siro-nav { padding: 14px var(--siro-space-5); }
  .siro-nav--transparent { padding: 18px var(--siro-space-5); }

  .siro-nav__items-wrap {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--siro-surface);
    flex-direction: column;
    align-items: stretch;
    padding: var(--siro-space-5);
    gap: 8px;
    border-bottom: 1px solid var(--siro-outline-dark);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    z-index: var(--siro-z-overlay);
  }
  .siro-nav__items-wrap.is-open { display: flex; }

  .siro-nav--transparent .siro-nav__items-wrap {
    background: var(--siro-color-primary-dark);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .siro-nav__items {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .siro-nav__link {
    padding: 10px 8px;
    font-size: var(--siro-fs-base);
    width: 100%;
  }

  .siro-nav--transparent .siro-nav__link { color: var(--siro-text-inverse); }

  .siro-dropdown {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 8px 16px 8px 28px;
    opacity: 1;
    visibility: visible;
    min-width: 0;
    display: grid;
  }

  .siro-dropdown--megamenu {
    grid-template-columns: 1fr;
    min-width: 0;
  }

  .siro-nav__toggle { display: block; }

  .siro-nav__cta {
    margin-top: var(--siro-space-3);
    align-self: stretch;
    text-align: center;
    justify-content: center;
  }
}