/* Shared authenticated navigation for public and account surfaces. */
[data-session-actions] {
  --session-nav-primary: var(--vnu-green, var(--home-green, var(--product-green, #007a46)));
  --session-nav-primary-dark: var(--vnu-green-dark, var(--product-green-dark, #005f38));
  --session-nav-text: var(--vnu-ink, var(--home-ink, var(--product-text, #14372a)));
  --session-nav-muted: var(--vnu-muted, var(--home-muted, var(--product-muted, #5f746a)));
  --session-nav-border: var(--vnu-green-line, var(--home-line, var(--product-border, #d7e4dc)));
  --session-nav-surface: var(--vnu-paper, var(--product-surface, #fff));
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

[data-session-actions][data-auth-state="loading"] { visibility: hidden; }

.session-login,
.session-learning-link,
.session-admin-link,
.session-retry,
.session-account-trigger {
  min-height: 44px;
  border: 1px solid var(--session-nav-border);
  border-radius: var(--session-nav-radius, 9px);
  font: inherit;
  font-size: 14px;
  font-weight: 680;
  line-height: 1;
  text-decoration: none;
}

.session-login,
.session-learning-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 15px;
  border-color: var(--session-nav-primary);
  color: #fff;
  background: var(--session-nav-primary);
}

.session-login:hover,
.session-learning-link:hover {
  border-color: var(--session-nav-primary-dark);
  color: #fff;
  background: var(--session-nav-primary-dark);
}

.session-admin-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 13px;
  color: var(--session-nav-primary-dark);
  background: var(--session-nav-surface);
}

.session-admin-link:hover {
  border-color: var(--session-nav-primary);
  color: var(--session-nav-primary-dark);
  background: color-mix(in srgb, var(--session-nav-primary) 8%, var(--session-nav-surface));
}

.session-nav-icon {
  display: inline-grid;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  place-items: center;
}

.session-nav-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.session-account-menu { position: relative; }
.session-account-menu > summary { list-style: none; }
.session-account-menu > summary::-webkit-details-marker { display: none; }

.session-account-trigger {
  display: flex;
  max-width: 190px;
  align-items: center;
  gap: 8px;
  padding: 0 11px;
  color: var(--session-nav-text);
  background: var(--session-nav-surface);
  cursor: pointer;
}

.session-account-trigger:hover,
.session-account-menu[open] .session-account-trigger {
  border-color: var(--session-nav-primary);
  color: var(--session-nav-primary-dark);
}

.session-account-name {
  max-width: 115px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-account-trigger .session-nav-icon:last-child {
  width: 15px;
  height: 15px;
  flex-basis: 15px;
  transition: transform .18s ease;
}

.session-account-menu[open] .session-account-trigger .session-nav-icon:last-child { transform: rotate(180deg); }

.session-account-panel {
  box-sizing: border-box;
  position: absolute;
  top: calc(100% + 9px);
  right: 0;
  z-index: 60;
  width: min(294px, calc(100vw - 24px));
  padding: 8px;
  border: 1px solid var(--session-nav-border);
  border-radius: var(--session-nav-radius, 12px);
  color: var(--session-nav-text);
  background: var(--session-nav-surface);
  box-shadow: 0 18px 48px rgba(12, 45, 31, .18);
}

.session-account-identity {
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 10px 11px 12px;
  border-bottom: 1px solid var(--session-nav-border);
}

.session-account-identity strong,
.session-account-identity span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-account-identity strong { font-size: 15px; }
.session-account-identity span { color: var(--session-nav-muted); font-size: 13px; }

.session-account-action {
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
  padding: 0 11px;
  border: 0;
  border-radius: var(--session-nav-radius, 8px);
  color: var(--session-nav-text);
  background: transparent;
  font: inherit;
  font-size: 14px;
  font-weight: 620;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.session-account-action:hover,
.session-account-action:focus-visible {
  color: var(--session-nav-primary-dark);
  background: color-mix(in srgb, var(--session-nav-primary) 9%, var(--session-nav-surface));
}

.session-logout { color: #a13d2b; }
.session-logout:disabled { cursor: wait; opacity: .64; }
.session-logout-status { display: block; min-height: 0; padding: 3px 11px 2px; color: #a13d2b; font-size: 12px; line-height: 1.4; }
.session-logout-status:empty { display: none; }

.session-retry {
  padding-inline: 13px;
  color: var(--session-nav-primary-dark);
  background: var(--session-nav-surface);
  cursor: pointer;
}

.session-retry:disabled { cursor: wait; opacity: .64; }

@media (max-width: 900px) {
  .session-learning-link { display: none; }
  .site-actions > a.session-admin-link:not(.site-button) { display: inline-flex; }
  .session-account-name { display: none; }
  .session-account-trigger { width: 44px; padding: 0; justify-content: center; }
  .session-account-trigger .session-nav-icon:last-child { display: none; }
}

@media (max-width: 520px) {
  .session-admin-link { width: 44px; padding: 0; }
  .session-admin-link-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .session-account-panel {
    position: fixed;
    top: 74px;
    right: 12px;
    width: calc(100vw - 24px);
  }
}

@media (max-width: 380px) {
  .home-v3 .brand > span,
  .courses-catalog .site-brand > span,
  .course-detail-page .site-brand > span { display: none; }
}

@media (max-width: 420px) {
  .student-dashboard-page .product-links { display: none; }
}

html[data-theme="dark"] .student-dashboard-page [data-session-actions] {
  --session-nav-surface: #13291e;
  --session-nav-text: #edf6f0;
  --session-nav-muted: #a4b8aa;
  --session-nav-border: #294437;
}

@media (prefers-reduced-motion: reduce) {
  .session-account-trigger .session-nav-icon:last-child { transition: none; }
}