/* =============================================
   NAV — Top navigation bar + mobile menu
   ============================================= */

nav {
  background: var(--accent);
  padding: 0 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  height: 58px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-initials {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  letter-spacing: 1px;
}

.nav-title {
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}

.nav-sub {
  color: rgba(255, 255, 255, 0.6);
  font-size: 11px;
  margin-top: 1px;
}

.nav-links {
  display: flex;
  align-items: stretch;
}

.nav-links a {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 12px;
  text-decoration: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.7);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile menu */
.mobile-menu {
  display: none;
  background: var(--accent);
  flex-direction: column;
  padding: 0.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu a {
  padding: 0.75rem 2rem;
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s;
}

.mobile-menu a:hover {
  color: #fff;
}

.mobile-menu.open {
  display: flex;
}