/* ============================================================
   EnaLisis — Navigation Styles
   ============================================================ */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-ena {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 28px;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: -0.5px;
}
.logo-bar {
  width: 3px;
  height: 28px;
  background: var(--blue);
  margin: 0 1px;
}
.logo-lisis {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 28px;
  color: var(--gray-900);
  text-transform: uppercase;
  letter-spacing: -0.5px;
  background: #fff;
  padding: 2px 4px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 4px;
  margin-left: auto;
  align-items: center;
}
nav ul li a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--gray-700);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: all .15s;
}
nav ul li a:hover { color: var(--blue); background: var(--blue-light); }
nav ul li a.nav-active { color: var(--blue); }

.nav-cta { background: var(--blue) !important; color: #fff !important; padding: 8px 18px !important; border-radius: var(--radius) !important; }
.nav-cta:hover { background: var(--blue-dark) !important; color: #fff !important; }
.nav-login { border: 1px solid var(--gray-300) !important; color: var(--gray-700) !important; }
.nav-login:hover { border-color: var(--blue) !important; color: var(--blue) !important; background: var(--blue-light) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}
.hamburger span { display: block; width: 22px; height: 2px; background: var(--gray-800); transition: .2s; }

@media (max-width: 900px) {
  .hamburger { display: flex; }
  nav ul {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
    gap: 4px;
    z-index: 999;
  }
  nav ul.open { display: flex; }
  nav ul li { width: 100%; }
  nav ul li a { display: block; padding: 12px 16px; }
}