/* Shared Navigation Styles */
body {
  margin: 0;
  padding: 0;
}

.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 220px;
  background: var(--panel, #121a33);
  border-right: 1px solid rgba(122, 170, 238, 0.2);
  box-shadow: 2px 0 24px rgba(0, 0, 0, 0.4);
  z-index: 1000;
  overflow-y: auto;
  transition: transform 0.3s ease;
}

.nav-container.collapsed {
  transform: translateX(-220px);
}

.nav-toggle-fixed {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1001;
  background: var(--panel, #121a33);
  border: 1px solid rgba(122, 170, 238, 0.3);
  border-radius: 4px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  display: none;
  color: var(--ink, #e9eefc);
}

.nav-toggle-fixed:hover {
  background: var(--bg, #0b1020);
  border-color: var(--accent, #7ae);
}

.nav-container.collapsed ~ .nav-toggle-fixed {
  display: block;
}

.nav-toggle {
  display: inline-block;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  padding: 0;
  margin-left: 8px;
  color: var(--ink, #e9eefc);
  vertical-align: middle;
}

.nav-toggle:hover {
  color: var(--accent, #7ae);
}

.nav-menu {
  display: block;
  width: 100%;
  height: 100%;
}

.nav-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  border-bottom: 1px solid rgba(122, 170, 238, 0.1);
}

.nav-menu a {
  display: block;
  padding: 0.875rem 1.25rem;
  color: var(--muted, #9fb0e8);
  text-decoration: none;
  transition: all 0.2s;
  font-size: 0.95rem;
}

.nav-menu a:hover {
  background: rgba(122, 170, 238, 0.1);
  color: var(--ink, #e9eefc);
}

.nav-menu a.active {
  background: rgba(122, 170, 238, 0.15);
  color: var(--accent, #7ae);
  font-weight: 600;
  border-left: 3px solid var(--accent, #7ae);
  padding-left: calc(1.25rem - 3px);
}

.content-wrapper {
  margin-left: 220px;
  transition: margin-left 0.3s ease;
}

.content-wrapper.nav-collapsed {
  margin-left: 0;
}

/* Only add padding to pages that need it (not timeline/visualizer) */
.content-wrapper > .container {
  padding: 2rem;
  max-width: 1400px;
}