/* ============================================================
   HEADER & NAVEGACIÓN
   iglesia-viva/css/header.css
============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(32,78,147,0.12), var(--shadow-soft);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Logo ── */
.logo {
  display: flex;
  align-items: center;
}

.logo__img {
  height: 80px;
  width: auto;
  object-fit: contain;
  /* Logo negro → blanco sobre header transparente (encima del video) */
  filter: invert(1) brightness(2);
  transition: filter var(--transition), opacity var(--transition);
  flex-shrink: 0;
}

.header.scrolled .logo__img {
  /* Header blanco → logo en color original */
  filter: none;
}

@media (max-width: 600px) {
  .logo__img { height: 80px; }
}

/* ── Navegación desktop ── */
.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav__link {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.88);
  padding: 8px 14px;
  border-radius: 6px;
  transition: var(--transition);
}

.header.scrolled .nav__link {
  color: var(--text-muted);
}

.nav__link:hover {
  color: #fff;
  background: rgba(255,255,255,0.12);
}

.header.scrolled .nav__link:hover {
  color: var(--blue-main);
  background: var(--blue-light);
}

.nav__cta {
  margin-left: 8px;
  padding: 9px 22px;
  background: var(--blue-main);
  color: #fff;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav__cta:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

/* ── Hamburguesa ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: none;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

.header.scrolled .hamburger span {
  background: var(--blue-deeper);
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Menú móvil ── */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(253, 253, 253, 0.359);
  backdrop-filter: blur(16px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav .nav__link {
  color: var(--blue-deeper);
  font-size: 1.4rem;
  font-family: var(--font-serif);
  padding: 14px 30px;
  letter-spacing: 0.02em;
}

.mobile-nav .nav__link:hover {
  color: var(--blue-main);
  background: none;
}

.mobile-nav .nav__cta {
  margin-top: 16px;
  font-size: 1rem;
  padding: 14px 36px;
}