/* =============================================================
   ANDROLOGIA MOINHOS — HEADER E NAVEGAÇÃO
   ============================================================= */

/* ── Topbar ──────────────────────────────────────────────── */
.topbar {
  background-color: var(--color-primary);
  color: var(--color-white);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-4);
}

.topbar__left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar__left a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  transition: opacity var(--transition-fast);
}

.topbar__left a:hover {
  opacity: 0.85;
  color: var(--color-white);
}

.topbar__left svg {
  width: 16px;
  height: 16px;
  fill: var(--color-secondary);
  flex-shrink: 0;
}

.topbar__center {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-secondary);
  text-align: center;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.topbar__social {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.topbar__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--color-white);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast);
}

.topbar__social a:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-1px);
  color: var(--color-white);
}

.topbar__social svg {
  width: 13px;
  height: 13px;
  fill: currentColor;
}

/* ── Wrapper do header ───────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-white);
  box-shadow: 0 2px 12px rgba(40, 75, 99, 0.08);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(40, 75, 99, 0.15);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-6);
}

/* ── Logo ────────────────────────────────────────────────── */
.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.header__logo img {
  height: 46px;
  width: auto;
  display: block;
}

/* ── Navegação principal ─────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-base);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: var(--space-5);
  right: var(--space-5);
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav__link:hover,
.nav__link:focus {
  color: var(--color-accent);
}

.nav__link:hover::after,
.nav__link:focus::after {
  transform: scaleX(1);
}

/* Página ativa */
.nav__link[aria-current="page"] {
  color: var(--color-accent);
}

.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

/* Link com seta de submenu */
.nav__item--dropdown > .nav__link::before {
  content: '';
  display: inline-block;
  margin-left: var(--space-1);
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  vertical-align: middle;
  transition: transform var(--transition-fast);
}

.nav__item--dropdown:hover > .nav__link::before {
  transform: rotate(180deg);
}

/* ── Submenu ─────────────────────────────────────────────── */
.nav__submenu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 240px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border-top: 3px solid var(--color-accent);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base),
              transform var(--transition-base),
              visibility var(--transition-base);
  z-index: calc(var(--z-sticky) + 1);
}

.nav__item--dropdown:hover .nav__submenu,
.nav__item--dropdown:focus-within .nav__submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__submenu a {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              padding-left var(--transition-fast);
}

.nav__submenu a:hover,
.nav__submenu a:focus {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  padding-left: calc(var(--space-5) + var(--space-2));
}

/* ── Botão de agendamento ────────────────────────────────── */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.btn--agenda {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
  padding: 0.625rem 1.25rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-pill);
  white-space: nowrap;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  font-weight: var(--weight-medium);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  transition: background-color var(--transition-base),
              color var(--transition-base),
              transform var(--transition-fast);
}

.btn--agenda:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* ── Botão menu mobile (hamburger) ───────────────────────── */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: var(--space-2);
  transition: border-color var(--transition-fast);
  flex-shrink: 0;
}

.menu-toggle:hover {
  border-color: var(--color-primary);
}

.menu-toggle__line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

/* Estado aberto */
.menu-toggle.is-open .menu-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open .menu-toggle__line:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open .menu-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Menu mobile — oculto por padrão no desktop ─────────── */
/*    A responsive.css define display:flex para ≤1024px      */
.nav--mobile {
  display: none;
}

/* ── Overlay mobile ──────────────────────────────────────── */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.45);
  z-index: calc(var(--z-sticky) - 1);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.nav-overlay.is-visible {
  opacity: 1;
}