/*
 * Navbar - Top bar, header, and navigation
 */

/* Top Bar */
.top-bar {
  background: var(--slate-100);
  font-size: 0.85rem;
}

.top-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-link {
  color: var(--slate-600);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
}

.top-bar-link:hover {
  color: var(--brand-red);
}

.top-bar-link svg {
  flex-shrink: 0;
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  color: var(--slate-700);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  height: 36px;
  width: auto;
}

/* Navigation Links */
.nav-links {
  margin-left: auto;
}

.nav-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-item > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--slate-700);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.nav-item > a:hover,
.nav-item > a:focus-visible {
  background: rgba(26, 32, 44, 0.06);
  color: var(--slate-800);
  box-shadow: inset 0 0 0 1px rgba(26, 32, 44, 0.08);
}

.nav-item.has-submenu > a::after {
  content: "▾";
  font-size: 0.7rem;
  color: var(--slate-400);
  transition: transform 0.2s ease, color 0.2s ease;
}

.nav-item.has-submenu:hover > a::after,
.nav-item.has-submenu:focus-within > a::after,
.nav-item.has-submenu:has(.submenu.open) > a::after {
  transform: rotate(180deg);
  color: var(--slate-800);
}

/* Submenu */
.submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: #ffffff;
  border-radius: 12px;
  padding: 12px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(26, 32, 44, 0.08);
  padding-top: 16px;
}

.submenu a {
  display: block;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--slate-700);
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.submenu a:hover,
.submenu a:focus-visible {
  background: rgba(26, 32, 44, 0.05);
  color: var(--slate-800);
}

/* Mobile parent links - hidden on desktop */
.submenu .mobile-parent-link {
  display: none;
}

.nav-item.has-submenu:focus-within > .submenu,
.submenu.open {
  display: grid;
  gap: 4px;
}

/* Nested Submenu */
.submenu-item {
  position: relative;
}

.submenu-item.has-nested {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.submenu-item.has-nested .submenu-link {
  display: block;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--slate-700);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  flex: 1;
  text-decoration: none;
}

.submenu-item.has-nested .submenu-link::after {
  content: "›";
  float: right;
  font-size: 1.2rem;
  color: var(--slate-400);
  margin-left: 8px;
}

.submenu-item.has-nested:hover .submenu-link,
.submenu-item.has-nested:has(.submenu-nested.open) .submenu-link {
  background: rgba(26, 32, 44, 0.05);
  color: var(--slate-800);
}

.submenu-nested {
  display: none;
  position: absolute;
  left: 100%;
  top: -12px;
  min-width: 220px;
  background: #ffffff;
  border-radius: 12px;
  padding: 12px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(26, 32, 44, 0.08);
  margin-left: 8px;
}

.submenu-item.has-nested:focus-within .submenu-nested,
.submenu-nested.open {
  display: grid;
  gap: 4px;
}

.submenu-nested a {
  display: block;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--slate-700);
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.submenu-nested a:hover,
.submenu-nested a:focus-visible {
  background: rgba(26, 32, 44, 0.05);
  color: var(--slate-800);
}

/* Nav CTA Button */
.nav-item.nav-cta .button {
  background: var(--brand-red);
  color: var(--white);
  border-radius: 999px;
  padding: 10px 16px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.2px;
  box-shadow: 0 8px 18px rgba(219, 30, 54, 0.3);
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.nav-item.nav-cta .button:hover,
.nav-item.nav-cta .button:focus-visible {
  background: var(--brand-red-dark);
  box-shadow: 0 8px 22px rgba(168, 24, 43, 0.35);
  transform: translateY(-1px);
}

/* Mobile Toggle */
.nav-toggle-checkbox {
  display: none;
}

.nav-toggle {
  display: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 9px;
  border-radius: 8px;
  border: 1px solid var(--slate-200);
  background: var(--white);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.nav-toggle:hover,
.nav-toggle:active {
  background: var(--slate-50);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #2d3748;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}

/* Hamburger animation when open */
.nav-toggle-checkbox:checked + .nav-toggle span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.nav-toggle-checkbox:checked + .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.nav-toggle-checkbox:checked + .nav-toggle span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Responsive */
@media (max-width: 960px) {
  .top-bar {
    display: none;
  }

  .nav-inner {
    flex-wrap: wrap;
    padding: 16px 20px;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .nav-links {
    width: 100%;
    display: none;
    order: 3;
  }

  #nav-toggle:checked ~ .nav-links {
    display: block;
  }

  .nav-links ul {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--slate-200);
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--slate-100);
  }

  .nav-item:last-child {
    border-bottom: none;
  }

  .nav-item > a {
    width: 100%;
    padding: 14px 12px;
    border-radius: 0;
    font-size: 1rem;
  }

  .nav-item > a:hover {
    background: var(--slate-50);
    box-shadow: none;
  }

  /* Hide dropdown arrows on mobile */
  .nav-item.has-submenu > a::after {
    content: "+";
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--slate-400);
    transform: none;
  }

  .nav-item.has-submenu:has(.submenu.open) > a::after {
    content: "−";
    transform: none;
  }

  /* Mobile submenus - hidden by default, shown when .open class added */
  .nav-item.has-submenu > .submenu {
    position: static;
    display: none;
    width: 100%;
    margin: 0;
    padding: 8px 0 16px 16px;
    background: var(--slate-50);
    border: none;
    border-radius: 0;
    box-shadow: none;
  }

  .nav-item.has-submenu > .submenu.open {
    display: grid;
    gap: 0;
  }

  .submenu a {
    padding: 12px 16px;
    border-radius: 0;
    color: var(--slate-600);
    font-size: 0.95rem;
  }

  .submenu a:hover {
    background: var(--slate-100);
    color: var(--slate-800);
  }

  /* Show mobile parent links */
  .submenu .mobile-parent-link {
    display: block;
    font-weight: 600;
    color: var(--slate-700);
    border-bottom: 1px solid var(--slate-200);
    margin-bottom: 4px;
    padding-bottom: 12px;
  }

  /* Nested submenus on mobile */
  .submenu-item.has-nested {
    flex-direction: column;
    align-items: stretch;
  }

  .submenu-item.has-nested .submenu-link {
    padding: 12px 16px;
    border-radius: 0;
    font-size: 0.95rem;
  }

  .submenu-item.has-nested .submenu-link::after {
    content: "+";
    font-size: 1rem;
    color: var(--slate-400);
  }

  .submenu-item.has-nested:has(.submenu-nested.open) .submenu-link::after {
    content: "−";
  }

  .submenu-nested {
    position: static;
    margin: 0;
    padding: 8px 0 8px 16px;
    background: var(--slate-100);
    border: none;
    border-radius: 0;
    box-shadow: none;
    min-width: 100%;
  }

  .submenu-nested.open {
    display: grid;
    gap: 0;
  }

  .submenu-nested a {
    padding: 10px 16px;
    font-size: 0.9rem;
    color: var(--slate-600);
  }

  /* CTA button on mobile */
  .nav-item.nav-cta {
    width: 100%;
    padding: 16px 12px;
    border-bottom: none;
  }

  .nav-item.nav-cta .button {
    display: block;
    width: 100%;
    text-align: center;
  }
}