/* ============================================================
   COURSES (tracks) — the picker and the in-course header bar.
   ============================================================ */

/* ---------------------------------------------------------- the picker */
body.duo .tpick { display: flex; flex-direction: column; gap: 14px; }

body.duo .tcard {
  display: block; width: 100%; text-align: left; cursor: pointer;
  padding: 20px; border: 2px solid var(--line); border-left: 8px solid var(--tcolor);
  border-radius: var(--r-md); background: var(--card);
  box-shadow: 0 4px 0 var(--line);
}
body.duo .tcard:hover { border-color: var(--tcolor); }
body.duo .tcard:active { transform: translateY(4px); box-shadow: none; }
body.duo .tcard.on { border-color: var(--tcolor); box-shadow: 0 4px 0 var(--tcolor); }

body.duo .tcard-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
body.duo .tcard-tag {
  font-weight: 900; font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--tcolor);
}
body.duo .tcard-adv, body.duo .tcard-on {
  font-weight: 800; font-size: 10px; letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 999px; border: 2px solid var(--line); color: var(--faint);
}
body.duo .tcard-on { border-color: var(--tcolor); color: var(--tcolor); }

body.duo .tcard h3 { margin: 0 0 8px; font-family: var(--fdisplay); font-size: 26px; font-weight: 700; color: var(--ink-strong); }
body.duo .tcard-blurb { margin: 0 0 12px; color: var(--muted); font-weight: 600; font-size: 15px; line-height: 1.5; }
body.duo .tcard-who { margin: 0 0 4px; color: var(--ink-strong); font-weight: 600; font-size: 14px; }
body.duo .tcard-who b { color: var(--tcolor); font-weight: 900; }
body.duo .tcard-effort { margin: 0 0 14px; color: var(--faint); font-weight: 600; font-size: 13px; font-style: italic; }

body.duo .tcard-meta { display: flex; flex-wrap: wrap; gap: 8px; }
body.duo .tcard-meta span {
  font-weight: 800; font-size: 12px; color: var(--muted);
  padding: 4px 10px; border: 2px solid var(--line); border-radius: 999px;
}
body.duo .tcard-sections { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
body.duo .tcard-sections span {
  font-weight: 700; font-size: 11px; color: var(--faint);
  padding: 3px 8px; border-radius: var(--r-sm); background: var(--bg);
}
body.duo .tpick-fine {
  margin: 18px 0 0; color: var(--faint); font-weight: 600; font-size: 13px; line-height: 1.6;
}

/* ------------------------------------------------- the in-course header bar */
body.duo .track-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 12px 16px; margin-bottom: 14px;
  border: 2px solid var(--line); border-left: 8px solid var(--tcolor);
  border-radius: var(--r-md); background: var(--card);
}
body.duo .track-bar-main { display: flex; align-items: baseline; gap: 9px; flex: 1 1 auto; min-width: 0; }
body.duo .track-tag {
  font-weight: 900; font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--tcolor);
}
body.duo .track-bar-main b { font-size: 16px; font-weight: 900; color: var(--ink-strong); }
body.duo .track-prog { font-weight: 800; font-size: 13px; color: var(--faint); margin-left: auto; }
body.duo .track-pbar { flex: 1 1 100%; order: 3; }
body.duo .track-switch {
  order: 2; background: none; border: 2px solid var(--line); border-radius: 999px;
  padding: 5px 12px; font-weight: 800; font-size: 12px; color: var(--muted); cursor: pointer;
}
body.duo .track-switch:hover { color: var(--ink-strong); border-color: var(--muted); }

@media (max-width: 560px) {
  body.duo .tcard { padding: 16px; }
  body.duo .tcard h3 { font-size: 22px; }
}

/* ---------------------------------------------- carried-over progress */
/* Progress is keyed by lesson id, so a shared foundation world is already done
   when you switch courses. This is the UI finally saying so. */
body.duo .tcard-carry {
  border-color: var(--green) !important;
  color: var(--green) !important;
}
body.duo .tcard-head-start {
  margin: 10px 0 0; padding: 10px 12px;
  border-left: 4px solid var(--green); border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--green-soft); color: var(--green-ink);
  font-weight: 700; font-size: 13px; line-height: 1.5;
}
body.duo .carry-note {
  margin-bottom: 14px; padding: 12px 14px;
  border: 2px solid var(--green); border-radius: var(--r-md);
  background: var(--green-soft); color: var(--green-ink);
  font-weight: 600; font-size: 13px; line-height: 1.55;
}
body.duo .carry-note b { font-weight: 900; }