/* ============================================
   LUDOVARA — HEADER & NAVEGAÇÃO
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-white);
  box-shadow: 0 1px 0 var(--color-overlay);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: 100%;
}

/* ── LOGO ── */
.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.header-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.header-logo-text {
  font-family: var(--font-title);
  font-size: 24px;
  color: var(--color-green-dark);
  letter-spacing: -0.01em;
}

/* ── NAVEGAÇÃO ── */
.header-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--color-black);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-base), color var(--transition-base);
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--color-beige-light);
  color: var(--color-green-dark);
}

.nav-link.active {
  color: var(--color-green-accent);
}

/* ── DROPDOWN — controlado por JS (menu.js) ── */
.nav-dropdown {
  position: relative;
}

.nav-dropdown .dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  min-width: 200px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
  z-index: 300;
}

.nav-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu li a {
  display: block;
  padding: 10px 14px;
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--color-black);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.dropdown-menu li a:hover {
  background: var(--color-beige-light);
  color: var(--color-green-dark);
}

/* ── CTA DO HEADER ── */
.header-cta {
  flex-shrink: 0;
  font-size: var(--text-small);
  padding: 10px 20px;
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-base);
  margin-left: auto;
}

.hamburger:hover { background: var(--color-beige-light); }

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-green-dark);
  border-radius: 2px;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
  transform-origin: center;
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── MENU MOBILE ── */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 99;
  padding: calc(var(--header-height) + var(--space-4)) var(--container-px) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1;
}

.mobile-nav-list li a {
  display: block;
  padding: 14px 0;
  font-size: var(--text-h4);
  font-weight: var(--weight-semibold);
  color: var(--color-green-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--color-overlay);
  transition: color var(--transition-base);
}

.mobile-nav-list li a:hover { color: var(--color-green-accent); }
.mobile-nav-list li:last-child a { border-bottom: none; }

.mobile-whatsapp {
  margin-top: auto;
  text-align: center;
  font-size: var(--text-body);
}

/* ── RESPONSIVE ── */
@media (max-width: 1023px) {
  .header-nav { display: none; }
  .header-cta { display: none; }
  .hamburger { display: flex; }
}

@media (min-width: 1024px) {
  .mobile-menu { display: none; }
}

/* Com position: sticky no header, nenhum padding-top é necessário no body */