/* ============================================================
   AI Enablement Hub — auth surfaces inside the learner app
   Topbar profile menu, track chooser, Settings track switcher.
   Layered on css/styles.css (tokens, .btn, .card).
   ============================================================ */

.hidden { display: none !important; }

/* ---------------- topbar profile menu ---------------- */

.profile { position: relative; }

.profile-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color var(--speed) ease, background var(--speed) ease;
}
.profile-btn:hover { border-color: var(--border-strong); background: var(--surface-2); }
.profile-btn[aria-expanded="true"] { border-color: var(--accent); background: var(--surface-2); }

.avatar img,
.avatar-lg img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.avatar-lg {
  display: grid;
  place-items: center;
  flex: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  overflow: hidden;
}

.profile-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 60;
  width: 268px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lift);
  animation: profile-pop var(--speed) ease;
}

@keyframes profile-pop {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .profile-menu { animation: none; }
}

.profile-head {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 12px 12px 10px;
}
.profile-id { min-width: 0; }
.profile-name {
  display: block;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.profile-email {
  display: block;
  font-size: 12.5px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 10px 12px;
}

.profile-sep {
  height: 1px;
  margin: 0 6px 6px;
  background: var(--border);
}

.profile-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: background var(--speed) ease, color var(--speed) ease;
}
.profile-item:hover { background: var(--surface-2); text-decoration: none; }
.profile-item svg { flex: none; color: var(--text-dim); }
.profile-item-danger { color: var(--red); }
.profile-item-danger svg { color: var(--red); }

/* ---------------- track chooser ---------------- */

.track-chooser {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 0 40px;
  text-align: center;
}
.track-chooser-head h2 {
  font-size: 26px;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.track-chooser-head p {
  max-width: 560px;
  margin: 0 auto 26px;
  color: var(--text-dim);
}

.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  text-align: left;
}

.track-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform var(--speed) ease, box-shadow var(--speed) ease,
    border-color var(--speed) ease;
}
.track-card:hover,
.track-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lift);
}
.track-card[aria-pressed="true"],
.track-card.active {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft), transparent 60%), var(--surface);
}
.track-card-icon { font-size: 30px; line-height: 1; }
.track-card h3 { font-size: 18px; margin: 0; letter-spacing: -0.01em; }
.track-card-tagline { margin: 0; color: var(--text); font-size: 14px; }
.track-card-audience {
  margin: 0;
  color: var(--text-dim);
  font-size: 13px;
}
.track-card-cta {
  margin-top: auto;
  padding-top: 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}

.track-later { margin-top: 22px; }
.track-later button {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 9px;
}
.track-later button:hover { color: var(--text); background: var(--surface-2); }
.track-note {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--text-faint);
}

/* ---------------- settings: track switcher + account ---------------- */

.track-switch {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.track-switch .track-card { padding: 18px; }

.account-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.account-row .profile-id { flex: 1; min-width: 160px; }