/* Shared Nav - Light theme default, dark theme via [data-theme="dark"] */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 12px 32px;
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: transparent;
  backdrop-filter: saturate(180%) blur(2px);
  -webkit-backdrop-filter: saturate(180%) blur(2px);
  z-index: -1;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--nav-title-color, var(--gray-900, #18181b));
}

.nav-links {
  display: flex;
  gap: 2px;
  background: transparent;
  padding: 4px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
}

.nav-link {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--nav-link-color, rgba(0, 0, 0, 0.55));
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-link:hover {
  color: var(--nav-link-hover, rgba(0, 0, 0, 0.8));
  background: var(--nav-link-hover-bg, rgba(255, 255, 255, 0.25));
}

.nav-link.active {
  color: var(--nav-link-active, rgba(0, 0, 0, 0.85));
  background: linear-gradient(
    180deg,
    var(--nav-active-bg-start, rgba(255, 255, 255, 0.85)) 0%,
    var(--nav-active-bg-end, rgba(255, 255, 255, 0.7)) 100%
  );
  box-shadow: 
    inset 0 1px 0 0 rgba(255, 255, 255, 0.95),
    0 1px 3px rgba(0, 0, 0, 0.1),
    0 2px 6px rgba(0, 0, 0, 0.06);
}

/* Dark theme overrides */
[data-theme="dark"] .nav {
  border-bottom-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .nav-title {
  color: #fafafa;
}

[data-theme="dark"] .nav-links {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .nav-link {
  color: rgba(255, 255, 255, 0.55);
}

[data-theme="dark"] .nav-link:hover {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .nav-link.active {
  color: rgba(255, 255, 255, 0.9);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.15) 0%,
    rgba(255, 255, 255, 0.08) 100%
  );
  box-shadow: 
    inset 0 1px 0 0 rgba(255, 255, 255, 0.15),
    0 1px 3px rgba(0, 0, 0, 0.15);
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    padding-left: 24px;
    padding-right: 24px;
  }
}