/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  height: var(--header-height);
  background: #ffffff;
  border-bottom: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
  isolation: isolate;
}

.header--scrolled,
.header--menu-open {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
  min-width: 0;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header__logo img {
  height: 52px;
  width: auto;
}

.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.header__logo-name {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.header__logo-group {
  font-size: 0.7rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-700);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-primary);
  background: var(--color-gray-100);
}

.nav__cta-mobile {
  display: none !important;
}

.nav__dropdown {
  position: relative;
}

.nav__dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
}

.nav__dropdown:hover .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-item {
  display: block;
  padding: 0.6rem 1rem;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav__dropdown-item:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(242, 101, 34, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

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

.btn--outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Cards */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card__title {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.card__text {
  font-size: 0.925rem;
  color: var(--color-gray-500);
  line-height: 1.7;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
}

.card__body {
  padding: 1.75rem;
}

.card__image {
  height: 200px;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.3);
  font-size: 3rem;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat__number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat__label {
  font-size: 0.9rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

.section--dark .stat__label {
  color: rgba(255, 255, 255, 0.7);
}

/* Form */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  background: var(--color-white);
  transition: all var(--transition);
  color: var(--color-gray-800);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(3, 17, 104, 0.1);
}

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

/* Footer */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: 4rem 0 2rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer__brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer__title {
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links li {
  margin-bottom: 0.6rem;
}

.footer__links a {
  color: var(--color-gray-400);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer__social {
  display: flex;
  gap: 1rem;
}

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

.footer__social a:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1080;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.75rem;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
  transition: all var(--transition);
  animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  color: white;
}

@keyframes pulse-whatsapp {
  0%, 100% { box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 6px 32px rgba(37, 211, 102, 0.7); }
}

.lang-switcher {
  position: relative;
  flex-shrink: 0;
}

.lang-switcher__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-gray-700);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.lang-switcher__toggle:hover,
.lang-switcher--open .lang-switcher__toggle {
  color: var(--color-primary);
  border-color: var(--color-gray-300);
  background: var(--color-gray-50);
}

.lang-switcher__icon {
  color: var(--color-gray-500);
  flex-shrink: 0;
}

.lang-switcher--open .lang-switcher__icon {
  color: var(--color-primary);
}

.lang-switcher__current {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.lang-switcher__chevron {
  color: var(--color-gray-400);
  transition: transform var(--transition);
}

.lang-switcher--open .lang-switcher__chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.lang-switcher__menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 1200;
  min-width: 168px;
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.lang-switcher__option {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
}

.lang-switcher__option:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

.lang-switcher__option--active {
  background: var(--color-gray-100);
  color: var(--color-primary);
  font-weight: 600;
}

.lang-switcher__option-code {
  min-width: 1.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-gray-500);
}

.lang-switcher__option--active .lang-switcher__option-code {
  color: var(--color-primary);
}

.lang-switcher__option-name {
  flex: 1;
}

.lang-notice {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  z-index: 1050;
  background: #fff8e6;
  border-bottom: 1px solid #f0d78c;
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  text-align: center;
  color: #5c4a00;
}

/* Mobile menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-gray-800);
  transition: all var(--transition);
}

.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);
}

@media (max-width: 1200px) {
  .header__logo-text {
    display: none;
  }

  .nav__link {
    padding: 0.45rem 0.65rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 1280px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1095;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 2rem;
    gap: 0.5rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
  }

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

  .nav__link {
    padding: 1rem;
    font-size: 1.1rem;
  }

  .nav__dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    padding-left: 1rem;
    display: none;
  }

  .nav__dropdown--open .nav__dropdown-menu {
    display: block;
  }

  .menu-toggle {
    display: flex;
  }

  .header__cta--desktop {
    display: none;
  }

  .header__actions {
    gap: 0.5rem;
  }

  .lang-switcher__toggle {
    padding: 0.45rem 0.6rem;
    font-size: 0.8rem;
  }

  .nav__cta-mobile {
    display: flex !important;
    margin-top: 1rem;
    width: 100%;
    justify-content: center;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
  }
}