/**
 * nav.css — Navegação principal com 2 dropdowns
 * Caue Possatto — Métodos Bioenergéticos
 * Ref: WIREFRAME_caue_possatto_home_V5.html
 */

/* ═══════════════════════════════════════════════════════════
   NAV BASE
═══════════════════════════════════════════════════════════ */
#main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: 18px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(8, 15, 11, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: padding 0.3s ease, box-shadow 0.3s ease;
}

/* Estado ao rolar — ativado por nav-scroll.js */
#main-nav.nav-scrolled {
  background: rgba(8, 15, 11, 0.97);
  padding: 12px 48px;
  box-shadow: var(--shadow-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ═══════════════════════════════════════════════════════════
   LOGO
═══════════════════════════════════════════════════════════ */
.nav-logo {
  text-decoration: none;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.nav-logo img {
  height: 56px;
  width: auto;
  display: block;
}

/* ═══════════════════════════════════════════════════════════
   LISTA DE LINKS
═══════════════════════════════════════════════════════════ */
.nav-links {
  display: flex;
  gap: 26px;
  list-style: none;
  align-items: center;
  margin: 0;
  padding: 0;
}
.nav-links > li { position: relative; }

.nav-links a {
  font-family: var(--font-corpo);
  font-size: 0.64rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--off-white);
  text-decoration: none;
  opacity: 0.58;
  transition: opacity 0.2s ease, color 0.2s ease;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  opacity: 1;
  color: var(--dourado);
}

/* Botão Agendar */
.nav-links .nav-cta {
  padding: 10px 22px;
  border: 1px solid var(--dourado);
  color: var(--dourado);
  opacity: 1;
  border-radius: var(--radius-btn);
  background: transparent;
  transition: var(--tr-base);
}
.nav-links .nav-cta:hover {
  background: var(--dourado);
  color: var(--verde-profundo);
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════
   DROPDOWN
═══════════════════════════════════════════════════════════ */
.nav-dropdown > a::after {
  content: '⌄';
  font-size: 0.85rem;
  line-height: 1;
  position: relative;
  top: -1px;
  margin-left: 2px;
  transition: transform 0.25s ease;
  display: inline-block;
}
.nav-dropdown:hover > a::after,
.nav-dropdown:focus-within > a::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: rgba(8, 15, 11, 0.98);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  min-width: 210px;
  padding: 10px 0;
  border: 1px solid rgba(201, 168, 76, 0.18);
  border-top: none;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  list-style: none;
  margin-top: 14px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.45);
  z-index: var(--z-dropdown);
}

/* Ponte invisível para não perder o hover ao mover o mouse */
.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 14px;
}

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

.dropdown-menu li  { display: block; }
.dropdown-menu a {
  display: block;
  padding: 11px 24px;
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--off-white);
  opacity: 0.65;
  white-space: nowrap;
  transition: background 0.2s ease, opacity 0.2s ease, color 0.2s ease;
  justify-content: flex-start;
}
.dropdown-menu a:hover {
  background: rgba(201, 168, 76, 0.08);
  opacity: 1;
  color: var(--dourado);
}

/* ═══════════════════════════════════════════════════════════
   MOBILE TOGGLE
═══════════════════════════════════════════════════════════ */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  z-index: calc(var(--z-nav) + 10);
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--off-white);
  border-radius: 1px;
  transition: var(--tr-base);
  transform-origin: center;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ═══════════════════════════════════════════════════════════
   RESPONSIVO
═══════════════════════════════════════════════════════════ */
@media (max-width: 1200px) {
  #main-nav        { padding: 16px 32px; }
  #main-nav.nav-scrolled { padding: 10px 32px; }
  .nav-links       { gap: 18px; }
}

@media (max-width: 900px) {
  #main-nav        { padding: 14px 24px; }
  #main-nav.nav-scrolled { padding: 10px 24px; }
  .nav-links       { gap: 12px; }
  .nav-links a     { font-size: 0.58rem; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  /* Overlay de menu mobile */
  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 28px;
    background: rgba(8, 15, 11, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s;
    z-index: var(--z-nav);
  }
  .nav-links.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav-links > li { width: auto; position: static; }
  .nav-links a {
    font-size: 0.78rem;
    opacity: 0.75;
    letter-spacing: 0.2em;
  }

  /* Dropdown mobile — expande ao clicar */
  .dropdown-menu {
    position: static;
    transform: none;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    box-shadow: none;
    margin-top: 8px;
    padding: 8px 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none;
    min-width: auto;
    border-radius: 0;
  }
  .dropdown-menu::before { display: none; }
  .nav-dropdown.open .dropdown-menu { display: block; }
  .nav-dropdown > a { flex-direction: row; justify-content: center; }

  /* Botão Agendar mobile */
  .nav-links .nav-cta {
    padding: 12px 32px;
    font-size: 0.72rem;
  }
}