/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--navbar-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  transition: background var(--transition);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.nav-logo svg,
.nav-logo img {
  height: 36px;
  width: auto;
}

/* Theme-aware logo switching */
.logo-light { display: block; }
.logo-dark  { display: none;  }
[data-theme="dark"] .logo-light { display: none;  }
[data-theme="dark"] .logo-dark  { display: block; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.5rem 1.4rem;
  background: linear-gradient(135deg, rgb(var(--accent-dark-rgb)), rgb(var(--accent-primary-rgb)));
  border-radius: 50px;
  color: #fff !important;
  font-weight: 600;
  font-size: 0.85rem;
  box-shadow: 0 2px 10px rgba(var(--accent-dark-rgb), 0.25);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.nav-cta:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 6px 20px rgba(var(--accent-primary-rgb), 0.35),
              0 0 12px rgba(var(--accent-secondary-rgb), 0.12);
  color: #fff !important;
}

.nav-cta:active {
  transform: translateY(0) scale(0.98);
}

.nav-cta::after {
  display: none !important;
}

/* "Coming soon" nav placeholder */
.nav-soon {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: default;
  opacity: 0.6;
}

.nav-soon small {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.8;
}

/* --- Mega-menu dropdowns --- */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition);
}

.nav-dropdown-toggle:hover {
  color: var(--text-primary);
}

.nav-dropdown-toggle .chevron-down {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  fill: none;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.nav-dropdown:hover .nav-dropdown-toggle .chevron-down {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 200px;
  white-space: nowrap;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  padding: 0.5rem;
  z-index: 100;
}

/* Invisible bridge so hover doesn't break crossing the gap */
.nav-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 14px;
}

[data-theme="dark"] .nav-dropdown-menu {
  background: #1c2128;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.nav-dropdown:hover .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav-dropdown-menu a::after {
  display: none !important;
}

.nav-dropdown-menu a:hover {
  background: rgba(var(--accent-primary-rgb), 0.08);
  color: var(--text-primary);
}

.nav-dropdown-menu .nav-soon {
  display: block;
  padding: 0.55rem 0.85rem;
  font-size: 0.88rem;
}

/* --- Inline navbar search bar --- */
.nav-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.75rem;
  cursor: text;
  color: var(--text-muted);
  background: rgba(var(--accent-primary-rgb), 0.03);
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  min-width: 160px;
}

.nav-search:hover,
.nav-search:focus-within {
  border-color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.06);
  box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.08);
}

.nav-search svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.nav-search input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.82rem;
  color: var(--text-primary);
  min-width: 0;
}

.nav-search input::placeholder {
  color: var(--text-muted);
}

.nav-search kbd {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.1rem 0.35rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-muted);
  background: rgba(var(--accent-primary-rgb), 0.04);
  flex-shrink: 0;
  line-height: 1.4;
}

/* Light/Dark toggle button */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.45rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  width: 38px;
  height: 38px;
}

.theme-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.06);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Sun icon visible in dark mode, moon icon visible in light mode */
.theme-toggle .icon-sun {
  display: none;
}
.theme-toggle .icon-moon {
  display: block;
}
[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}
[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition);
}