/* GRABA IMAGEN — Responsive */

/* === HEADER === */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  transition: all 0.4s ease;
}

.top-bar {
  background: var(--color-primary-dark);
  padding: 8px 0;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.85);
}

.top-bar-center {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.7);
  text-align: center;
  letter-spacing: 0.04em;
}

.top-bar a { color: var(--color-accent); text-decoration: none; }
.top-bar a:hover { color: white; }

.header-main {
  background: var(--color-white);
  box-shadow: 0 2px 20px rgba(10,36,99,0.08);
  padding: 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

.site-header.scrolled .header-main {
  background: rgba(6,21,57,0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.site-header.scrolled .nav-link { color: rgba(255,255,255,0.9); }
.site-header.scrolled .logo-text { color: white; }
.site-header.scrolled .logo-tagline { color: rgba(255,255,255,0.6); }

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon { width: 44px; height: 44px; flex-shrink: 0; }
.logo-text {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  line-height: 1;
  transition: color 0.3s ease;
}
.logo-accent { color: var(--color-accent); }
.logo-tagline {
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--color-gray-mid);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

/* Nav */
.nav-main { display: flex; align-items: center; gap: 4px; }

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-dark);
  text-decoration: none;
  position: relative;
  padding: 6px 12px;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 12px;
  width: calc(100% - 24px); height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav-link:hover, .nav-link.active { color: var(--color-primary-mid); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }

/* Dropdown */
.nav-dropdown { position: relative; }

.nav-dropdown > .nav-link::before {
  content: '▾';
  margin-left: 4px;
  font-size: 0.7rem;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 48px rgba(10,36,99,0.15);
  border: 1px solid var(--color-gray-light);
  min-width: 220px;
  padding: 8px 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: all 0.25s ease;
  z-index: var(--z-dropdown);
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-family: var(--font-heading);
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--color-gray-dark);
  text-decoration: none;
  transition: all 0.2s ease;
}

.dropdown-item:hover {
  background: var(--color-off-white);
  color: var(--color-primary-mid);
  padding-left: 24px;
}

.dropdown-icon { font-size: 1rem; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 26px; height: 2.5px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
}

.site-header.scrolled .hamburger span { background: white; }

.hamburger.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Mobile sidebar */
.nav-sidebar {
  position: fixed;
  top: 0; right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--color-primary-dark);
  z-index: calc(var(--z-header) + 50);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  padding: 80px 28px 40px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-sidebar.open { transform: translateX(0); }

.sidebar-link {
  display: block;
  padding: 12px 16px;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: all 0.2s ease;
}

.sidebar-link:hover { color: var(--color-accent); padding-left: 24px; }

.sidebar-close {
  position: absolute;
  top: 20px; right: 20px;
  background: none; border: none;
  color: white; font-size: 1.5rem; cursor: pointer; opacity: 0.8;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: calc(var(--z-header) + 40);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.nav-overlay.show { opacity: 1; pointer-events: all; }

/* === FOOTER === */
.site-footer {
  background: var(--color-primary-dark);
  color: white;
  padding: clamp(60px,8vw,100px) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.footer-col p { font-size: 0.88rem; color: rgba(255,255,255,0.65); line-height: 1.7; }

.footer-links { list-style: none; }

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover { color: var(--color-accent); padding-left: 4px; }

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.social-link {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 1rem;
  transition: all 0.25s ease;
}

.social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
  transform: translateY(-3px);
}

.years-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--color-metal-gold), #e8c869);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.82rem;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  margin-top: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.7);
}

.footer-contact-item svg { color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }

.subfooter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  flex-wrap: wrap;
  gap: 12px;
}

.subfooter p { font-size: 0.82rem; color: rgba(255,255,255,0.45); }
.subfooter a { color: rgba(255,255,255,0.5); text-decoration: none; transition: color 0.2s; }
.subfooter a:hover { color: var(--color-accent); }

/* === WA BUBBLE === */
.wa-bubble-fixed {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: var(--z-bubble);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.wa-btn {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  text-decoration: none;
}

.wa-btn:hover { transform: scale(1.12); box-shadow: 0 8px 32px rgba(37,211,102,0.55); }

.wa-btn svg { width: 32px; height: 32px; color: white; }

.wa-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37,211,102,0.4);
  animation: waPulse 2s ease-out infinite;
}

@keyframes waPulse {
  0%   { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

.wa-tooltip {
  background: var(--color-primary-dark);
  color: white;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: all 0.3s ease;
}

.wa-bubble-fixed:hover .wa-tooltip { opacity: 1; transform: translateX(0); }

/* === RESPONSIVE BREAKPOINTS === */

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .timeline::before { left: 24px; }
  .timeline-item, .timeline-item:nth-child(even) { flex-direction: column; padding-left: 64px; }
  .timeline-year { left: 24px; top: 0; transform: none; }
  .timeline-content { width: 100%; }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .top-bar-center { display: none; }
  .top-bar-left { display: none; }
  .top-bar-right { margin-left: auto; }
  .hamburger { display: flex; }
  .nav-main { display: none; }
  .header-cta-btn { display: none; }
  .hero-btns { flex-direction: column; }
  .hero-btns .btn-cta, .hero-btns .btn-secondary { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .subfooter { flex-direction: column; text-align: center; }
  .counters-strip { justify-content: center; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .forms-cols { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; }
  .process-step::after { display: none; }
  .promos-grid { grid-template-columns: 1fr; }
  .section-title { font-size: clamp(1.8rem,6vw,2.5rem); }
  .hero-title { font-size: clamp(2.5rem,10vw,4rem); }
  .wa-bubble-fixed { bottom: 16px; right: 16px; }
}

@media (max-width: 480px) {
  :root { --container-pad: 16px; --section-pad: 48px; }
  .form-box { padding: 24px 18px; }
}

@media (min-width: 769px) {
  .grid-2 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(3,1fr); }
  .grid-4 { grid-template-columns: repeat(4,1fr); }
}