/* Courseversity — adaptive practice engine
   Loaded only on cv_module pages that carry a cv_practice_set.
   Introduces no colours of its own: every value resolves to a theme token,
   so light/dark and per-subject accents follow the site automatically. */

.cv-p {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--gridline);
}
.cv-p-eyebrow {
  display: inline-block;
  background: var(--maj-tint, var(--brand-100));
  color: var(--maj-acc, var(--brand-dark));
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.cv-p > h2 { font-size: 22px; margin: 12px 0 4px; }
.cv-p-intro { color: var(--text-secondary); font-size: 14px; margin: 0 0 20px; max-width: 62ch; }

.cv-p-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  gap: 20px;
  align-items: start;
}

.cv-p-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 20px;
}
.cv-p-card h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin: 0 0 14px;
  font-weight: 700;
}

/* ---- question ---- */
.cv-p-qbox {
  background: var(--page-plane);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 16px;
}
.cv-p-qmeta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.cv-p-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 700;
  background: var(--gridline);
  color: var(--text-secondary);
  white-space: nowrap;
}
.cv-p-pill.is-major { background: var(--maj-tint, var(--brand-100)); color: var(--maj-acc, var(--brand-dark)); }
.cv-p-q {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

/* ---- answer row ---- */
.cv-p-form { display: flex; gap: 8px; flex-wrap: wrap; }
.cv-p-input {
  flex: 1 1 200px;
  min-width: 0;
  background: var(--surface-1);
  color: var(--text-primary);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 15px;
  font-family: inherit;
  font-variant-numeric: tabular-nums;
}
.cv-p-input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-100);
}

.cv-p-btn {
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.cv-p-btn:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--text-muted); }
.cv-p-btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.cv-p-btn:disabled { opacity: .5; cursor: not-allowed; }
.cv-p-btn.is-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.cv-p-btn.is-primary:hover:not(:disabled) { background: var(--brand-dark); border-color: var(--brand-dark); }
.cv-p-btn.is-small { padding: 7px 14px; font-size: 13px; }

.cv-p-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }

/* ---- feedback ---- */
.cv-p-feedback {
  margin-top: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--page-plane);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}
.cv-p-feedback strong { color: var(--text-primary); }
.cv-p-feedback.is-correct {
  border-color: var(--good);
  background: color-mix(in srgb, var(--good) 10%, var(--surface-1));
}
.cv-p-feedback.is-correct strong { color: var(--good-text); }
.cv-p-feedback.is-wrong {
  border-color: var(--critical);
  background: color-mix(in srgb, var(--critical) 9%, var(--surface-1));
}
.cv-p-feedback.is-wrong strong { color: var(--critical); }
.cv-p-worked { margin: 8px 0 0; }
.cv-p-note { margin: 8px 0 0; font-size: 12.5px; color: var(--text-muted); }

/* ---- hints ---- */
.cv-p-hint {
  border: 1px solid var(--border);
  border-left: 3px solid var(--warning);
  border-radius: var(--radius-sm);
  background: var(--page-plane);
  padding: 11px 13px;
  margin-bottom: 8px;
}
.cv-p-hint-label {
  display: block;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  margin-bottom: 3px;
}
.cv-p-hint p { margin: 0; font-size: 13.5px; color: var(--text-secondary); line-height: 1.55; }
.cv-p-empty { font-size: 13px; color: var(--text-muted); margin: 0 0 12px; }

/* ---- mastery ---- */
.cv-p-mastery + .cv-p-mastery { margin-top: 14px; }
.cv-p-mastery-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
  font-size: 13px;
  margin-bottom: 6px;
}
.cv-p-mastery-head b { font-weight: 600; color: var(--text-primary); }
.cv-p-band { font-size: 12px; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.cv-p-bar {
  height: 8px;
  border-radius: 999px;
  background: var(--gridline);
  overflow: hidden;
}
.cv-p-bar i {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--maj-acc, var(--brand));
  transition: width .4s ease;
}

.cv-p-score {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--gridline);
}
.cv-p-reset {
  margin-top: 12px;
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--text-muted);
  text-decoration: underline;
  cursor: pointer;
}
.cv-p-reset:hover { color: var(--critical); }

.cv-p-storage-note {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

.cv-p-sr {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (max-width: 900px) {
  .cv-p-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .cv-p-btn, .cv-p-bar i { transition: none; }
  .cv-p-btn:hover:not(:disabled) { transform: none; }
}