/* ============================================================
   escopo.css — Estilos compartilhados entre páginas do site
   Dr. Ricardo Saick · Neurocirurgião de Coluna
   (header, nav dropdown, mobile drawer, seção anchor,
    hamburger animation, ícones Lucide)
============================================================ */

/* ── Lucide icon sizes ── */
.icon-16 {
  width: 16px !important;
  height: 16px !important;
}
.icon-20 {
  width: 20px !important;
  height: 20px !important;
}
.icon-24 {
  width: 24px !important;
  height: 24px !important;
}
.icon-32 {
  width: 32px !important;
  height: 32px !important;
}
.icon-48 {
  width: 48px !important;
  height: 48px !important;
}
svg[xmlns] {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}
.card-condition__icon {
  color: var(--color-blue-500);
}
.card-differential__icon {
  color: var(--color-blue-300);
}

/* ════════════════════════════════
   HEADER COM DROPDOWN
════════════════════════════════ */
.site-header {
  background: var(--color-navy-900);
}

/* Nav dropdown */
.nav-item {
  position: relative;
}
.nav-item__link {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(232, 244, 251, 0.7);
  text-decoration: none;
  padding-block: var(--space-2);
  transition: color var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-sans);
}
.nav-item__link:hover {
  color: var(--color-white);
}
.nav-item__link--active {
  color: var(--color-white);
}

.nav-item__chevron {
  transition: transform 0.25s ease;
  opacity: 0.6;
}
.nav-item:hover .nav-item__chevron,
.nav-item:focus-within .nav-item__chevron {
  transform: rotate(180deg);
  opacity: 1;
}

/* Dropdown panel */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  min-width: 220px;
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease,
    visibility 0.2s;
  transform: translateX(-50%) translateY(-6px);
  z-index: 200;
}
.nav-dropdown::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: var(--color-white);
  border-top: none;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Dropdown com colunas (mega-menu para Tratamentos) */
.nav-dropdown--wide {
  min-width: 540px;
  padding: var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}
.nav-dropdown--wide::before {
  left: 30%;
}

.nav-dropdown__group-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0 0 var(--space-2);
  margin-bottom: var(--space-1);
  border-bottom: 1px solid var(--color-blue-100);
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-body) !important;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition:
    background var(--transition-fast),
    color var(--transition-fast);
  white-space: nowrap;
}
.dropdown-link:hover {
  background: var(--color-blue-50);
  color: var(--color-blue-500);
}
.dropdown-link svg {
  opacity: 0.5;
  flex-shrink: 0;
}
.dropdown-link:hover svg {
  opacity: 1;
}

/* Nav wide dropdown link sem padding lateral */
.nav-dropdown--wide .dropdown-link {
  padding: var(--space-2) 0;
}

/* ════════════════════════════════
   MOBILE OVERLAY & DRAWER
════════════════════════════════ */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(4, 26, 52, 0.7);
  z-index: 999;
}
.mobile-overlay.is-open {
  display: block;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 90vw);
  height: 100%;
  background: var(--color-navy-900);
  z-index: 1000;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  transition: right 0.35s ease;
  overflow-y: auto;
}
.mobile-drawer.is-open {
  right: 0;
}

.mobile-drawer__close {
  align-self: flex-end;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-2);
  line-height: 1;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
}

.mobile-nav__item > a,
.mobile-nav__toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(232, 244, 251, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-decoration: none;
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font-sans);
  width: 100%;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--transition-fast);
}
.mobile-nav__item > a:hover,
.mobile-nav__toggle:hover {
  color: var(--color-white);
}

.mobile-nav__sub {
  display: none;
  flex-direction: column;
  padding: var(--space-2) 0 var(--space-2) var(--space-4);
  gap: var(--space-1);
}
.mobile-nav__sub.is-open {
  display: flex;
}
.mobile-nav__sub a {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: rgba(232, 244, 251, 0.55);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.mobile-nav__sub a:hover {
  color: var(--color-white);
}

.mobile-nav__sub-group {
  margin-bottom: var(--space-2);
}
.mobile-nav__sub-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
  padding-top: var(--space-2);
}

.mobile-nav__chevron {
  transition: transform 0.25s ease;
  opacity: 0.5;
}
.mobile-nav__toggle.is-open .mobile-nav__chevron {
  transform: rotate(180deg);
}

/* ════════════════════════════════
   SECTION ANCHOR (scroll targets)
════════════════════════════════ */
.section-anchor {
  scroll-margin-top: 80px;
}

/* ════════════════════════════════
   HAMBURGER ANIMADO
════════════════════════════════ */
.site-header__hamburger.is-open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.site-header__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.site-header__hamburger.is-open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}