/* ============================================
   EVCARGO Services - Componentes
   Botones, header, navegacion, formularios, footer
   y utilidades de animacion (reveal, stagger)
   ============================================ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 50px;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--white);
  box-shadow: var(--shadow-gold);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(201, 160, 66, 0.45);
}

.btn--secondary {
  background: var(--white);
  color: var(--navy);
  box-shadow: var(--shadow-md);
}

.btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  border: 2px solid var(--gold);
  color: var(--gold);
  background: transparent;
}

.btn--outline:hover {
  background: var(--gold);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--outline-white {
  border: 2px solid var(--white);
  color: var(--white);
  background: transparent;
}

.btn--outline-white:hover {
  background: var(--white);
  color: var(--navy);
}

.btn--navy {
  background: var(--navy);
  color: var(--white);
}

.btn--navy:hover {
  background: var(--navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--lg {
  padding: 1.1rem 2.5rem;
  font-size: 1.05rem;
}

.btn--sm {
  padding: 0.6rem 1.4rem;
  font-size: 0.85rem;
}

.btn-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-base);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
  height: 70px;
}

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

.header__logo img {
  height: 68px;
  width: auto;
  transition: height var(--transition-base);
}

.header.scrolled .header__logo img {
  height: 54px;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.header__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header__links > li {
  list-style: none;
}

.header__links > li > a {
  color: var(--navy, #0c1e38);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: var(--space-xs) 0;
  display: inline-flex;
  align-items: center;
}

.header__links > li > a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width var(--transition-base);
}

.header__links > li > a:hover::after,
.header__links > li > a.active::after {
  width: 100%;
}

.header__links > li > a:hover,
.header__links > li > a.active {
  color: var(--gold);
}

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

.dropdown__toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.dropdown__toggle svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.dropdown:hover .dropdown__toggle svg {
  transform: rotate(180deg);
}

.dropdown__menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xl);
  min-width: 240px;
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-base);
  z-index: 100;
}

.dropdown:hover .dropdown__menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Invisible bridge to prevent gap hover loss */
.dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 12px;
  background: transparent;
}

.dropdown__menu a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.7rem var(--space-md);
  color: var(--text-dark) !important;
  font-size: 0.9rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.dropdown__menu a:hover {
  background: var(--gray-lighter);
  color: var(--gold) !important;
}

.dropdown__menu a::after {
  display: none !important;
}

.dropdown__menu a svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
  flex-shrink: 0;
}

/* Language Toggle - Fixed bottom left */
.lang-toggle {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  background: var(--navy);
  border: 2px solid rgba(201, 160, 66, 0.4);
  border-radius: 50px;
  padding: 10px 18px;
  transition: all var(--transition-base);
  user-select: none;
  box-shadow: 0 4px 20px rgba(12, 30, 56, 0.35);
}

.lang-toggle:hover {
  background: var(--navy-light);
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(12, 30, 56, 0.45);
}

.lang-toggle__flag {
  font-size: 1.5rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lang-toggle__flag img {
  width: 24px;
  height: 16px;
  display: block;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  object-fit: cover;
}

.lang-toggle__label {
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
}

@media (max-width: 480px) {
  .lang-toggle {
    bottom: 16px;
    left: 16px;
    padding: 8px 14px;
  }

  .lang-toggle__flag {
    font-size: 1.3rem;
  }
}

/* Header CTA */
.header__cta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header__phone {
  color: var(--navy, #0c1e38);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.header__phone svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
}

.header__login {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 0.95rem;
  border: 2px solid var(--gold);
  color: var(--gold);
  background: transparent;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.88rem;
  text-decoration: none;
  transition: all 0.25s ease;
  white-space: nowrap;
  line-height: 1;
}

.header__login svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

.header__login:hover {
  background: var(--gold);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--navy, #0C1E38);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.menu-toggle.active span {
  background: var(--white);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Overlay */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  display: none;
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 768px) {
  .mobile-overlay {
    display: block;
  }
}


/* --- Contact Form --- */
.contact-form {
  display: grid;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--navy);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.875rem var(--space-lg);
  border: 2px solid rgba(12, 30, 56, 0.1);
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-fast);
  background: var(--white);
  font-size: 0.95rem;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--gold);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

/* --- Footer --- */
.footer {
  background: var(--navy-dark);
  color: var(--white);
  padding-top: var(--space-4xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.footer__brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin: var(--space-lg) 0;
  max-width: 300px;
}

.footer__brand img {
  height: 56px;
  width: auto;
  max-width: 100%;
  display: block;
}

.footer__social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.footer__social a:hover {
  background: var(--gold);
  transform: translateY(-2px);
}

.footer__social a svg {
  width: 18px;
  height: 18px;
}

.footer h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: var(--space-lg);
}

.footer__links a {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  padding: var(--space-xs) 0;
  transition: all var(--transition-fast);
}

.footer__links a:hover {
  color: var(--gold);
  padding-left: 4px;
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer__contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-lg) 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer__bottom-links a {
  color: rgba(255, 255, 255, 0.4);
}

.footer__bottom-links a:hover {
  color: var(--gold);
}

/* --- WhatsApp Float --- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: var(--white);
}

@keyframes pulse {
  0% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
  100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children animation */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}