@view-transition {
  navigation: auto;
}

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 80ms;
  animation-timing-function: ease-out;
}

body > .topbar {
  view-transition-name: study-topbar;
}

.study-switch {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  height: 32px;
  padding: 2px;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #f1f5f9;
}

.study-switch a {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  color: #475569;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.study-switch a[aria-current="page"] {
  background: linear-gradient(135deg, #0d9488, #2dd4bf);
  color: #ffffff;
}

.coach-source {
  position: relative;
  flex: 0 0 auto;
}

.coach-source > button,
.coach-source-menu button {
  font: inherit;
  cursor: pointer;
}

.coach-source > button {
  height: 32px;
  padding: 0 12px;
  border: 1px solid #d9dde6;
  border-radius: 999px;
  background: #ffffff;
  color: #334155;
  font-size: 13px;
  font-weight: 600;
}

.coach-source-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  min-width: 148px;
  padding: 6px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

.coach-source-menu[hidden] {
  display: none !important;
}

.coach-source-menu button {
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #334155;
  padding: 8px 10px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
}

.coach-source-menu button:hover {
  background: #f0fdfa;
  color: #0f766e;
}

.coach-frame .practice-banner {
  display: none !important;
}

body[data-theme="dark"] .study-switch {
  background: #0f172a;
  border-color: #334155;
}

body[data-theme="dark"] .study-switch a {
  color: #cbd5e1;
}

body[data-theme="dark"] .study-switch a[aria-current="page"] {
  color: #ffffff;
}

body[data-theme="dark"] .coach-source > button,
body[data-theme="dark"] .coach-source-menu {
  background: #0f172a;
  border-color: #334155;
  color: #e2e8f0;
}

body[data-theme="dark"] .coach-source-menu button {
  color: #e2e8f0;
}