/* ── Header ──────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}
.header.is-scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--border);
}
.header__inner {
  max-width: var(--container-lg);
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}
.nav { display: flex; align-items: center; gap: var(--space-xl); }
.nav__list { display: flex; align-items: center; gap: var(--space-xl); }
.nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-mid);
  position: relative;
  transition: color 200ms var(--ease);
}
.nav__link:hover, .nav__link.is-active { color: var(--brand-blue); }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  bottom: -6px; left: 0; right: 0;
  height: 2px;
  background: var(--brand-blue);
  border-radius: 2px;
}

/* Dropdown */
.nav__item--has-dropdown { position: relative; }
.nav__dropdown {
  position: absolute;
  top: calc(100% + 12px); left: -16px;
  min-width: 240px;
  padding: var(--space-sm);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 200ms, transform 200ms, visibility 200ms;
}
.nav__item--has-dropdown:hover .nav__dropdown,
.nav__item--has-dropdown:focus-within .nav__dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav__dropdown-link {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-dark);
  font-weight: 500;
}
.nav__dropdown-link:hover { background: var(--off-white); color: var(--brand-blue); }
.nav__dropdown-meta { font-size: 12px; color: var(--text-muted); font-weight: 400; display: block; margin-top: 2px; }

/* Hamburger */
.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
}
.nav__toggle span {
  position: relative;
  width: 22px; height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform 200ms var(--ease), opacity 200ms;
}
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  position: absolute;
  left: 0; width: 22px; height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform 200ms var(--ease), top 200ms;
}
.nav__toggle span::before { top: -7px; }
.nav__toggle span::after { top: 7px; }
.nav.is-open .nav__toggle span { background: transparent; }
.nav.is-open .nav__toggle span::before { top: 0; transform: rotate(45deg); }
.nav.is-open .nav__toggle span::after { top: 0; transform: rotate(-45deg); }

/* Mobile drawer */
@media (max-width: 1024px) {
  .header { height: var(--header-h-mobile); }
  .nav__toggle { display: inline-flex; }
  .nav__list,
  .nav__cta-wrap { display: none; }

  .nav.is-open .nav__list {
    position: fixed;
    top: var(--header-h-mobile); left: 0; right: 0;
    height: calc(100vh - var(--header-h-mobile));
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-lg);
    overflow-y: auto;
    display: flex;
  }
  .nav.is-open .nav__list .nav__link {
    display: block;
    padding: var(--space-md) 0;
    font-size: 18px;
    border-bottom: 1px solid var(--border);
  }
  .nav.is-open .nav__list .nav__dropdown {
    position: static;
    opacity: 1; visibility: visible; transform: none;
    background: var(--off-white);
    border: none;
    box-shadow: none;
    margin: var(--space-sm) 0;
    padding: var(--space-sm);
  }
  .nav.is-open .nav__cta-wrap {
    display: block;
    padding: var(--space-md) 0;
  }
  .nav.is-open .nav__cta-wrap .btn { width: 100%; }
}

/* Push page content below fixed header */
main { padding-top: var(--header-h); }
@media (max-width: 1024px) {
  main { padding-top: var(--header-h-mobile); }
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--brand-navy);
  color: rgba(255, 255, 255, 0.75);
  padding: var(--space-4xl) 0 var(--space-lg);
}
.footer a { color: rgba(255, 255, 255, 0.75); }
.footer a:hover { color: var(--white); }

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}
.footer__brand { color: var(--white); }
.footer__tagline {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: var(--space-md);
  color: rgba(255,255,255,0.55);
}
.footer__about {
  margin-top: var(--space-md);
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  max-width: 280px;
  line-height: 1.6;
}
.footer__col-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: var(--space-md);
}
.footer__list li { margin-bottom: 10px; font-size: 14px; }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}
.footer__social { display: flex; gap: var(--space-md); }
.footer__social a {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-full);
  transition: var(--transition);
}
.footer__social a:hover { background: var(--brand-blue); border-color: var(--brand-blue); }

@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ── Floating WhatsApp ───────────────────────────────────── */
.wa-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  background: var(--whatsapp-green);
  border-radius: var(--radius-full);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.40);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  z-index: 90;
  transition: var(--transition);
}
.wa-float:hover {
  transform: translateY(-4px) scale(1.05);
  background: var(--whatsapp-hover);
  color: var(--white);
}
.wa-float svg { width: 28px; height: 28px; }
.wa-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  border: 2px solid var(--whatsapp-green);
  opacity: 0;
  animation: wa-pulse 2.4s ease-out infinite;
}
@keyframes wa-pulse {
  0%   { opacity: 0.6; transform: scale(1); }
  100% { opacity: 0;   transform: scale(1.6); }
}

/* ── Grids ───────────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-lg); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* ── Reveal animation hooks ──────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}