/* ============================================================
   TOP BAR + NAV — light header, states mega-menu, mobile drawer
   ============================================================ */

/* ---------- Utility top bar ---------- */
.topbar {
  background: var(--bg-dark);
  color: var(--text-secondary);
  font-size: var(--text-xs);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.topbar-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 9px var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}
.topbar-group { display: flex; align-items: center; gap: var(--space-lg); }
.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: color var(--duration-fast) var(--ease-smooth);
}
a.topbar-item:hover { color: var(--gold-light); }
.topbar-item svg { width: 14px; height: 14px; color: var(--gold); flex-shrink: 0; }

/* ---------- Header ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--duration-normal) var(--ease-smooth),
              border-color var(--duration-normal) var(--ease-smooth);
}
.nav.scrolled {
  box-shadow: 0 6px 24px rgba(13, 31, 64, 0.09);
  border-bottom-color: transparent;
}

.nav-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 0 var(--space-lg);
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

/* ---------- Brand ---------- */
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--gradient-gold);
  color: var(--primary-darker);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: -0.04em;
  box-shadow: var(--shadow-gold);
  flex-shrink: 0;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}
.brand-name em { font-style: normal; color: var(--gold-dark); }
.brand-sub {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dark-tertiary);
  margin-top: 1px;
}

/* ---------- Links ---------- */
.nav-links { display: flex; align-items: center; gap: var(--space-xs); }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-dark-secondary);
  transition: color var(--duration-fast) var(--ease-smooth);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--duration-normal) var(--ease-out);
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); }

.nav-link .caret { width: 14px; height: 14px; transition: transform var(--duration-fast) var(--ease-smooth); }
.nav-item.has-menu:hover .caret { transform: rotate(180deg); }

/* ---------- States mega-menu ---------- */
.nav-item { position: relative; }

/*
 * The menu used to sit 12px below the trigger, so the pointer crossed a dead
 * gap on its way down and the menu closed before you could click a state.
 * It now opens flush against the trigger and carries an invisible bridge
 * (::before) plus a generous hit area, so the hover never breaks.
 */
.mega {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 8px);
  width: min(680px, 92vw);
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  padding: var(--space-lg);
  margin-top: 10px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal);
}
/* Invisible bridge across the gap so the pointer never leaves :hover.
   The gap measures 18px, so the bridge deliberately overshoots into the
   trigger (top: -24px) — no dead strip, at any zoom level. */
.mega::before {
  content: '';
  position: absolute;
  top: -24px;
  left: 0; right: 0;
  height: 26px;
}
.nav-item.has-menu:hover .mega,
.nav-item.has-menu:focus-within .mega,
.mega:hover {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translate(-50%, 0);
}

.mega-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
.mega-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 14px 16px;
  min-height: 56px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background var(--duration-fast) var(--ease-smooth),
              border-color var(--duration-fast) var(--ease-smooth);
}
.mega-link:hover { background: var(--primary-50); border-color: var(--primary-100); }
.mega-link-title { font-weight: 600; font-size: var(--text-sm); color: var(--text-dark); }
.mega-link-meta { font-size: var(--text-xs); color: var(--text-dark-tertiary); }
.mega-link:hover .mega-link-title { color: var(--primary); }

.mega-foot {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}
.mega-foot span { font-size: var(--text-sm); color: var(--text-dark-secondary); }

/* ---------- Right side ---------- */
.nav-actions { display: flex; align-items: center; gap: var(--space-sm); flex-shrink: 0; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  background: var(--bg-gray);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-dark);
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; }

/* ---------- Mobile drawer ---------- */
.drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(360px, 86vw);
  z-index: var(--z-modal);
  background: var(--bg-white);
  box-shadow: var(--shadow-2xl);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: var(--space-lg);
  padding-bottom: calc(var(--space-lg) + env(safe-area-inset-bottom));
}
.drawer.open { transform: translateX(0); }

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(13, 31, 64, 0.5);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-smooth), visibility var(--duration-normal);
}
.drawer-backdrop.open { opacity: 1; visibility: visible; }

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  margin-bottom: var(--space-md);
}
.drawer-close {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  background: var(--bg-gray);
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-dark);
  cursor: pointer;
}
.drawer-close svg { width: 20px; height: 20px; }

.drawer-link {
  display: block;
  padding: 13px 12px;
  font-weight: 600;
  color: var(--text-dark);
  border-radius: var(--radius-md);
}
.drawer-link:hover { background: var(--primary-50); color: var(--primary); }

.drawer-group-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dark-tertiary);
  padding: var(--space-md) 12px 6px;
}
.drawer-sublink {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 10px 22px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-dark-secondary);
  border-radius: var(--radius-md);
}
.drawer-sublink:hover { background: var(--bg-gray); color: var(--primary); }
.drawer-sublink small { color: var(--text-dark-tertiary); }

.drawer-actions {
  margin-top: auto;
  padding-top: var(--space-lg);
  display: grid;
  gap: var(--space-sm);
}

/* ---------- Floating actions (WhatsApp bubble + back to top) ---------- */
.fab-whatsapp {
  position: fixed;
  left: 22px;
  bottom: 22px;
  z-index: var(--z-sticky);
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: var(--radius-full);
  background: #25d366;
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.42);
  transition: transform var(--duration-normal) var(--ease-spring);
}
.fab-whatsapp:hover { transform: scale(1.08); color: #fff; }
.fab-whatsapp svg { width: 28px; height: 28px; }
/* gentle attention pulse, once the visitor has settled */
.fab-whatsapp::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid #25d366;
  animation: fab-pulse 2.6s var(--ease-out) infinite;
}
@keyframes fab-pulse {
  0%   { transform: scale(1);   opacity: 0.7; }
  70%  { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(1.5); opacity: 0; }
}

.fab-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: var(--z-sticky);
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: var(--radius-full);
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  color: var(--primary);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--duration-normal) var(--ease-smooth),
              visibility var(--duration-normal),
              transform var(--duration-normal) var(--ease-out);
}
.fab-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.fab-top:hover { background: var(--primary-50); }
.fab-top svg { width: 20px; height: 20px; }

/* ---------- Mobile bottom bar ---------- */
.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-color);
  padding: 10px var(--space-md);
  padding-bottom: calc(10px + env(safe-area-inset-bottom));
  gap: var(--space-sm);
  box-shadow: 0 -4px 20px rgba(13, 31, 64, 0.08);
}
.mobile-bar .btn { flex: 1; padding: 13px 10px; font-size: var(--text-sm); }

@media (max-width: 1040px) {
  .nav-links, .nav-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .topbar-group.secondary { display: none; }
}
@media (max-width: 980px) {
  .mobile-bar { display: flex; }
  body { padding-bottom: 76px; }
  /* the bottom bar already offers WhatsApp — don't stack a bubble on top of it */
  .fab-whatsapp { display: none; }
  .fab-top { bottom: 88px; right: 16px; }
}
@media (max-width: 560px) {
  .topbar-inner { justify-content: center; }
  .topbar-group.secondary { display: none; }
  .nav-inner { height: 68px; }
  .brand-mark { width: 40px; height: 40px; }
  .brand-name { font-size: 1rem; }
}