/* ========================================
   HEADER / NAVBAR
   ======================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: transparent;
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base);
}

.site-header.scrolled {
  background-color: var(--color-green);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.site-header.page-header {
  background-color: var(--color-green);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.navbar {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  max-width: var(--container-max);
  margin: 0 auto;
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.navbar__logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.navbar__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.navbar__logo-name {
  font-family: var(--font-heading);
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.navbar__logo-sub {
  font-size: var(--font-size-xs);
  color: var(--color-white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Nav links */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.navbar__link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 2px;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-gold);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--color-white);
}

.navbar__link:hover::after,
.navbar__link.active::after {
  transform: scaleX(1);
}

.navbar__link--highlight {
  color: var(--color-white) !important;
}

/* Logo + selo agrupados */
.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* Selo Detran credenciado */
.navbar__detran-seal {
  height: 40px;
  width: auto;
  object-fit: contain;
}

/* CTA button in nav */
.navbar__cta {
  margin-left: var(--space-md);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  cursor: pointer;
  padding: 0;
  background: none;
  border: none;
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

.navbar__hamburger.open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.navbar__hamburger.open span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Mobile nav drawer */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-green);
  flex-direction: column;
  padding: var(--space-xl) var(--space-lg);
  gap: var(--space-lg);
  overflow-y: auto;
  z-index: 999;
}

.navbar__mobile-menu.open {
  display: flex;
}

.navbar__mobile-link {
  font-size: var(--font-size-lg);
  font-family: var(--font-heading);
  color: rgba(255, 255, 255, 0.9);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: color var(--transition-fast);
}

.navbar__mobile-link:hover {
  color: var(--color-gold);
}

.navbar__mobile-link--highlight {
  color: var(--color-gold);
}

.navbar__mobile-cta {
  margin-top: var(--space-md);
}

/* Detran credentialed badge in header */
.navbar__detran {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--color-gold);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid rgba(201, 168, 76, 0.4);
  padding: 0.3rem 0.6rem;
  border-radius: var(--border-radius);
}