:root {
  --gold: #c79a34;
  --dark: #12364a;
  --text: #14202b;
  --text-mid: #536274;
  --text-soft: #8b98a8;
  --surface: #f8fafb;
  --white: #ffffff;
}

.at-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 74px;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.84);
  border-bottom: 1px solid rgba(18, 32, 43, 0.08);
  backdrop-filter: blur(18px);
  transform: translateY(0);
  transition: transform 0.28s ease, background 0.2s ease;
}

.at-nav.nav-hidden {
  transform: translateY(-100%);
}

.at-nav .logo {
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.at-nav .at-brand-logo {
  gap: 0;
  flex: 0 0 auto;
}

.at-nav .at-brand-horizontal {
  display: block;
  width: clamp(170px, 18vw, 220px);
  height: auto;
  max-height: 55px;
  object-fit: contain;
}

.at-nav ul {
  list-style: none;
  display: flex;
  gap: 1.75rem;
  align-items: center;
  padding: 0;
  margin: 0;
}

.at-nav li {
  position: relative;
  list-style: none;
}

.at-nav a {
  color: var(--text-mid);
  text-decoration: none;
  font-size: 16px !important;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color 0.2s, opacity 0.2s;
}

.at-nav a:hover {
  color: var(--dark);
}

.at-nav .nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
}

.at-nav .has-dropdown > .nav-link::after {
  content: '';
  width: 12px;
  height: 12px;
  margin-left: 0.45rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 4.5 6 7.5 9 4.5' stroke='%238b98a8' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px 12px;
  flex-shrink: 0;
}

.at-nav .nav-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 248px;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(18, 32, 43, 0.08);
  border-radius: 18px;
  box-shadow: 0 24px 60px rgba(15, 34, 48, 0.12);
  backdrop-filter: blur(18px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 120;
  display: block;
}

.at-nav .nav-dropdown li {
  display: block;
}

.at-nav .nav-dropdown li + li {
  margin-top: 0.2rem;
}

.at-nav .nav-dropdown a {
  display: block;
  padding: 0.72rem 0.85rem;
  border-radius: 12px;
  font-size: 0.9rem;
  letter-spacing: 0;
}

.at-nav .nav-dropdown a:hover {
  background: var(--surface);
  color: var(--dark);
}

.at-nav .has-dropdown:hover .nav-dropdown,
.at-nav .has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.at-nav .nav-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.at-nav .whatsapp-btn {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0 1rem;
  border-radius: 999px;
  background: #25d366;
  color: var(--white);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(37, 211, 102, 0.24);
}

.at-nav .whatsapp-btn:hover {
  color: var(--white);
  filter: brightness(1.03);
}

.at-nav .whatsapp-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.at-nav .menu-toggle {
  width: 46px;
  height: 46px;
  border: 1px solid rgba(18, 32, 43, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--dark);
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
}

.at-nav .menu-toggle span {
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.at-nav .menu-toggle.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.at-nav .menu-toggle.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 34, 48, 0.22);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 140;
}

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

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(88vw, 360px);
  height: 100vh;
  background: rgba(255, 255, 255, 0.97);
  padding: 1.25rem 1.25rem 2rem;
  transform: translateX(100%);
  transition: transform 0.28s ease;
  z-index: 150;
  overflow-y: auto;
}

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

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.mobile-menu-title {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.mobile-close {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(18, 32, 43, 0.08);
  border-radius: 12px;
  background: var(--white);
  color: var(--dark);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.mobile-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0;
  margin: 0;
}

.mobile-nav a,
.mobile-submenu-toggle {
  width: 100%;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  text-decoration: none;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-nav a:hover,
.mobile-submenu-toggle:hover {
  background: var(--surface);
}

.mobile-submenu-toggle::after {
  content: '+';
  font-size: 1.1rem;
  color: var(--text-soft);
}

.mobile-submenu-toggle.open::after {
  content: '-';
}

.mobile-submenu {
  list-style: none;
  display: none;
  padding: 0.2rem 0 0.4rem 0.7rem;
  margin: 0;
}

.mobile-submenu.open {
  display: block;
}

.mobile-submenu li {
  display: block;
}

.mobile-submenu a {
  min-height: 44px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-mid);
}

body.menu-open {
  overflow: hidden;
}

@media (max-width: 1100px) {
  .at-nav ul {
    display: none;
  }

  .at-nav .nav-actions .whatsapp-btn {
    display: none;
  }

  .at-nav .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 600px) {
  .at-nav {
    padding: 0 1rem;
  }

  .mobile-menu {
    width: 100vw;
  }
}