/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: rgba(10,10,10,0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--dur-fast) ease, border-color var(--dur-fast) ease, height var(--dur-fast) ease;
}

.site-header.scrolled {
  background: rgba(8,8,8,0.85);
  border-bottom-color: rgba(229,9,20,0.18);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}
.brand img {
  height: 38px;
  width: auto;
}
.brand-word {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  color: var(--white);
  text-transform: uppercase;
}
.brand-word span { color: var(--red); }

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2.1rem;
}

.nav-list > li { position: relative; }

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.83rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--grey-soft);
  padding: 0.5em 0;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  transition: color var(--dur-fast) ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--red);
  transition: width var(--dur-fast) var(--ease-out);
}
.nav-link:hover { color: var(--white); }
.nav-link:hover::after { width: 100%; }
.nav-link.is-active { color: var(--white); }
.nav-link.is-active::after { width: 100%; }

.caret {
  width: 9px; height: 9px;
  flex-shrink: 0;
  transition: transform var(--dur-fast) ease;
}
.has-dropdown:hover .caret { transform: rotate(180deg); }

/* Dropdown panel */

.dropdown {
  position: absolute;
  top: calc(100% + 18px);
  left: 50%;
  transform: translate(-50%, 10px);
  width: 560px;
  background: rgba(15,15,15,0.92);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.7);
  padding: 1.6rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast);
  z-index: 50;
}

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

.dropdown::before {
  content: '';
  position: absolute;
  top: -7px; left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 14px; height: 14px;
  background: rgba(15,15,15,0.92);
  border-left: 1px solid rgba(255,255,255,0.08);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.dropdown-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 1.5rem;
}

.dropdown-group-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.7rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--grey-line);
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--grey-soft);
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease, padding-left var(--dur-fast) ease;
}
.dropdown-link:hover {
  background: rgba(229,9,20,0.08);
  color: var(--white);
  padding-left: 0.75rem;
}
.dropdown-link .dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--grey-steel);
  flex-shrink: 0;
  transition: background var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.dropdown-link:hover .dot {
  background: var(--red);
  box-shadow: 0 0 8px var(--red-glow);
}

.nav-cta { display: flex; align-items: center; gap: 0.9rem; }

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--white);
  background: #1f1f1f;
  border: 1px solid rgba(255,255,255,0.12);
  padding: 0.65em 1.1em;
  border-radius: 999px;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast), transform var(--dur-fast);
}
.whatsapp-btn:hover {
  border-color: #25D366;
  box-shadow: 0 0 22px rgba(37,211,102,0.35);
  transform: translateY(-2px);
}
.whatsapp-btn svg { width: 17px; height: 17px; fill: #25D366; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px; height: 24px;
  z-index: 1001;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--white);
  transition: transform var(--dur-fast) ease, opacity var(--dur-fast) ease;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1024px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    bottom: 0;
    background: rgba(8,8,8,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: var(--space-md) 6vw;
    gap: var(--space-md);
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease-in-out);
    overflow-y: auto;
  }
  .main-nav.is-open { transform: translateX(0); }

  .nav-list { flex-direction: column; align-items: flex-start; gap: 0.3rem; width: 100%; }
  .nav-list > li { width: 100%; }
  .nav-link { padding: 0.9em 0; width: 100%; font-size: 1rem; justify-content: space-between; }

  .dropdown {
    position: static;
    width: 100%;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: none;
    height: 0;
    overflow: hidden;
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
    margin-top: 0;
    transition: height var(--dur-med) var(--ease-out), padding var(--dur-med) ease;
  }
  .dropdown::before { display: none; }
  .has-dropdown.is-expanded .dropdown {
    height: auto;
    pointer-events: auto;
    padding: 0.5rem 0 1rem 0.5rem;
  }
  .dropdown-cols { grid-template-columns: 1fr; }

  .nav-cta { flex-direction: column; align-items: stretch; width: 100%; margin-top: var(--space-sm); }
  .nav-toggle { display: flex; }
}

@media (max-width: 1024px) {
  .nav-cta-desktop-only { display: none; }
}
@media (min-width: 1025px) {
  .nav-cta-mobile-only { display: none; }
}