/* ===================================
   NAVBAR — Laborax style
   =================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.navbar--scrolled {
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.08);
}

/* Dark hero pages: navbar starts transparent */
.navbar--hero-dark {
  background: transparent;
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.navbar--hero-dark.navbar--scrolled {
  background: rgba(255, 255, 255, 0.97);
  border-bottom-color: var(--color-border);
}

.navbar__inner {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  margin-right: auto;
}

.navbar__logo img {
  height: 60px;
  width: auto;
  display: block;
  transition: var(--t-base);
}

.navbar--hero-dark:not(.navbar--scrolled) .navbar__logo img {
  filter: brightness(0) invert(1);
}

/* Links */
.navbar__links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}

.navbar__links a {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  transition: var(--t-base);
  text-decoration: none;
  white-space: nowrap;
}

.navbar__links a:hover,
.navbar__links a.active {
  color: var(--color-primary);
  background: var(--color-primary-pale);
}

/* Dark state link colors */
.navbar--hero-dark:not(.navbar--scrolled) .navbar__links a {
  color: rgba(255, 255, 255, 0.8);
}

.navbar--hero-dark:not(.navbar--scrolled) .navbar__links a:hover,
.navbar--hero-dark:not(.navbar--scrolled) .navbar__links a.active {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
}

/* CTA button */
.navbar__cta {
  flex-shrink: 0;
  margin-left: var(--space-3);
}

.navbar__cta .btn {
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
}

/* Phone badge */
.navbar__phone {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
  flex-shrink: 0;
  text-decoration: none;
}

.navbar__phone i {
  width: 32px;
  height: 32px;
  background: var(--color-primary-pale);
  color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.navbar--hero-dark:not(.navbar--scrolled) .navbar__phone {
  color: rgba(255, 255, 255, 0.85);
}

.navbar--hero-dark:not(.navbar--scrolled) .navbar__phone i {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-gray-50);
  transition: var(--t-base);
  cursor: pointer;
  padding: 0;
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.navbar--hero-dark:not(.navbar--scrolled) .navbar__hamburger {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.hamburger-line {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--color-gray-800);
  border-radius: 2px;
  transition: var(--t-base);
  transform-origin: center;
}

.navbar--hero-dark:not(.navbar--scrolled) .hamburger-line {
  background: rgba(255, 255, 255, 0.9);
}

.navbar__hamburger.is-open .hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.navbar__hamburger.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__hamburger.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Menu */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  z-index: calc(var(--z-navbar) - 1);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  border-top: 1px solid var(--color-border);
}

.navbar__mobile-menu.is-open {
  max-height: 500px;
}

.navbar__mobile-menu ul {
  list-style: none;
  padding: var(--space-4) var(--container-px) var(--space-2);
  display: flex;
  flex-direction: column;
}

.navbar__mobile-menu ul a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gray-700, #374151);
  border-radius: var(--radius-lg);
  transition: var(--t-base);
}

.navbar__mobile-menu ul a:hover,
.navbar__mobile-menu ul a.active {
  background: var(--color-primary-pale);
  color: var(--color-primary);
}

.navbar__mobile-menu ul a i {
  width: 20px;
  text-align: center;
  color: var(--color-primary);
  font-size: 0.875rem;
}

.navbar__mobile-menu .mobile-cta {
  padding: var(--space-4) var(--container-px) var(--space-6);
}

.navbar__mobile-menu .mobile-cta .btn {
  width: 100%;
  justify-content: center;
}

/* ===================================
   RESPONSIVE
   =================================== */

@media (max-width: 960px) {

  .navbar__links,
  .navbar__phone,
  .navbar__cta {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

  .navbar__mobile-menu {
    display: block;
  }
}

@media (max-width: 480px) {

  .navbar__logo img {
    height: 38px;
  }

  .navbar__inner {
    padding-inline: var(--space-4);
  }
}