/* ==========================================================================
   HEADER + NAVIGATION
   ========================================================================== */

.announcement-bar {
  background: var(--color-secondary);
  color: var(--color-text-inverse);
  font-size: var(--fs-xs);
  letter-spacing: 0.03em;
  text-align: center;
  padding: 9px var(--container-pad);
}
.announcement-bar a { color: var(--color-accent); font-weight: var(--fw-semibold); }
.announcement-bar a:hover { text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: height var(--transition-normal), background var(--transition-normal),
              box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.site-header.scrolled {
  height: var(--header-height-scrolled);
  background: rgba(255,255,255,0.97);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-header);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  font-size: 1.5rem;
  color: var(--color-secondary);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.logo span { color: var(--color-accent); }

.main-nav { display: flex; height: 100%; }
.main-nav > ul {
  display: flex;
  align-items: center;
  list-style: none;
  height: 100%;
  gap: var(--space-5);
}

.main-nav > ul > li { height: 100%; display: flex; align-items: center; position: relative; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  padding: 8px 2px;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}
.nav-link:hover,
.nav-link:focus-visible,
.has-dropdown.is-open .nav-link { color: var(--color-primary); }
.nav-link:hover::after,
.nav-link:focus-visible::after,
.has-dropdown.is-open .nav-link::after { transform: scaleX(1); }

.nav-caret {
  width: 9px; height: 9px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
  margin-top: -3px;
}
.has-dropdown.is-open .nav-caret,
.has-dropdown:hover .nav-caret { transform: rotate(225deg); margin-top: 3px; }

/* Dropdown panel */
.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 300px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  z-index: 50;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown,
.has-dropdown.is-open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.dropdown ul { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.dropdown a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
  color: var(--color-text);
  transition: background var(--transition-fast), color var(--transition-fast), padding-left var(--transition-fast);
}
.dropdown a:hover {
  background: var(--color-background-alt);
  color: var(--color-primary);
  padding-left: 18px;
}

.header-actions { display: flex; align-items: center; gap: var(--space-4); flex-shrink: 0; }
.header-phone { display: flex; align-items: center; gap: 8px; font-size: var(--fs-small); font-weight: var(--fw-medium); }
.header-phone svg { color: var(--color-accent); }

/* Mobile toggle */
.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: none; border: 0; cursor: pointer;
  flex-shrink: 0;
}
.menu-toggle .bar {
  position: relative;
  width: 22px; height: 2px;
  background: var(--color-secondary);
  transition: background var(--transition-fast);
}
.menu-toggle .bar::before,
.menu-toggle .bar::after {
  content: "";
  position: absolute; left: 0;
  width: 22px; height: 2px;
  background: var(--color-secondary);
  transition: transform var(--transition-normal), top var(--transition-normal), opacity var(--transition-fast);
}
.menu-toggle .bar::before { top: -7px; }
.menu-toggle .bar::after { top: 7px; }

.menu-toggle[aria-expanded="true"] .bar { background: transparent; }
.menu-toggle[aria-expanded="true"] .bar::before { top: 0; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .bar::after { top: 0; transform: rotate(-45deg); }

/* Mobile nav drawer */
.mobile-nav-overlay {
  position: fixed; inset: 0;
  background: rgba(15,27,45,0.5);
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  z-index: 98;
}
.mobile-nav-overlay.is-open { opacity: 1; visibility: visible; }

.mobile-nav {
  position: fixed;
  top: 0; right: 0;
  width: min(88vw, 400px);
  height: 100%;
  background: var(--color-white);
  z-index: 99;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
}
.mobile-nav.is-open { transform: translateX(0); }

.mobile-nav-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-5); }

.mobile-nav ul { list-style: none; }
.mobile-nav-item {
  border-bottom: 1px solid var(--color-border);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}
.mobile-nav.is-open .mobile-nav-item { opacity: 1; transform: translateY(0); }

.mobile-nav-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 4px;
  font-size: 1.05rem;
  font-weight: var(--fw-medium);
  color: var(--color-secondary);
}

.mobile-submenu {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}
.mobile-nav-item.is-open .mobile-submenu { max-height: 600px; }
.mobile-submenu a {
  display: block;
  padding: 12px 4px 12px 16px;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

.mobile-nav-cta { margin-top: auto; padding-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }

@media (max-width: 1024px) {
  .main-nav, .header-phone { display: none; }
  .menu-toggle { display: inline-flex; }
}

/* On narrow phones the CTA button + hamburger no longer fit side by side —
   move the CTA into the mobile drawer only, keep the hamburger reachable. */
@media (max-width: 560px) {
  .header-actions > .btn-accent { display: none; }
  .header-actions { gap: var(--space-2); }
}