/* ──────────────────────────────────────────────
 * Q&A System — Lessons & Products
 *
 * AAA-safe color overrides (from a11y review):
 *   Text secondary: #4b5563 (7.09:1 on white)
 *   Cyan text/hover: var(--pp-primary-dark) (5.17:1 non-text)
 *   Cyan avatar:     #155e75 (7.82:1 on white)
 *   Green text:      #166534 (7.08:1 on white)
 *   Green status:    #065f46 (7.68:1 on white)
 * ──────────────────────────────────────────── */

/* ── Section ──────────────────────────────── */

.pp-qa {
  margin-top: var(--pp-space-8, 2rem);
}

.pp-qa h2 {
  font-family: var(--pp-font-heading, "Montserrat", sans-serif);
  font-size: var(--pp-text-xl, 1.25rem);
  font-weight: 600;
  color: var(--pp-foreground, #181817);
  margin-bottom: var(--pp-space-4, 1rem);
}

.pp-qa--locked p {
  font-size: var(--pp-text-sm, 0.875rem);
  color: #4b5563;
}

/* ── Ask Question Form ────────────────────── */

.pp-qa__form {
  margin-bottom: var(--pp-space-6, 1.5rem);
}

.pp-qa__textarea {
  width: 100%;
  padding: var(--pp-space-3, 0.75rem);
  border: 1px solid var(--pp-border, #d6d1ca);
  border-radius: var(--pp-radius, 0.5rem);
  font-family: var(--pp-font-body, "Inter", sans-serif);
  font-size: var(--pp-text-sm, 0.875rem);
  line-height: 1.6;
  resize: vertical;
  min-height: 5rem;
  background: var(--pp-surface, #fff);
  color: var(--pp-foreground, #181817);
}

.pp-qa__textarea:focus-visible {
  outline: 3px solid var(--pp-primary-dark);
  outline-offset: 1px;
  border-color: var(--pp-primary-dark);
}

.pp-qa__form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--pp-space-2, 0.5rem);
  gap: var(--pp-space-2, 0.5rem);
}

.pp-qa__char-count {
  font-size: var(--pp-text-xs, 0.75rem);
  color: #4b5563;
}

.pp-qa__status {
  margin-top: var(--pp-space-2, 0.5rem);
  font-size: var(--pp-text-sm, 0.875rem);
  color: #065f46;
  min-height: 1.25rem;
}

/* ── Thread List ──────────────────────────── */

.pp-qa__empty {
  font-size: var(--pp-text-sm, 0.875rem);
  color: #4b5563;
  text-align: center;
  padding: var(--pp-space-6, 1.5rem) 0;
}

/* ── Question Card ────────────────────────── */

.pp-qa__thread {
  margin-bottom: var(--pp-space-4, 1rem);
  padding: var(--pp-space-4, 1rem);
  background: var(--pp-surface, #fff);
  border-radius: var(--pp-radius-lg, 0.75rem);
  border: 1px solid var(--pp-border, #d6d1ca);
}

.pp-qa__thread--resolved {
  border-color: #166534;
}

.pp-qa__thread-header {
  display: flex;
  align-items: center;
  gap: var(--pp-space-2, 0.5rem);
  flex-wrap: wrap;
  margin-bottom: var(--pp-space-2, 0.5rem);
}

.pp-qa__avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #155e75;
  color: #fff;
  font-size: var(--pp-text-xs, 0.75rem);
  font-weight: 700;
  flex-shrink: 0;
}

.pp-qa__author {
  font-weight: 600;
  font-size: var(--pp-text-sm, 0.875rem);
  color: var(--pp-foreground, #181817);
}

.pp-qa__time {
  font-size: var(--pp-text-xs, 0.75rem);
  color: #4b5563;
}

.pp-qa__resolved-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--pp-space-1, 0.25rem);
  color: #166534;
  font-weight: 600;
  font-size: var(--pp-text-xs, 0.75rem);
}

.pp-qa__lesson-source {
  font-size: var(--pp-text-xs, 0.75rem);
  color: #4b5563;
  margin-bottom: var(--pp-space-2, 0.5rem);
}

.pp-qa__thread-body {
  font-size: var(--pp-text-sm, 0.875rem);
  line-height: 1.6;
  color: var(--pp-foreground, #181817);
  margin-bottom: var(--pp-space-3, 0.75rem);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── Thread Footer ────────────────────────── */

.pp-qa__thread-footer {
  display: flex;
  align-items: center;
  gap: var(--pp-space-3, 0.75rem);
  flex-wrap: wrap;
  font-size: var(--pp-text-xs, 0.75rem);
}

.pp-qa__answer-count {
  color: #4b5563;
  font-weight: 500;
}

.pp-qa__toggle-answers,
.pp-qa__resolve-btn {
  background: none;
  border: 1px solid var(--pp-border, #d6d1ca);
  border-radius: var(--pp-radius, 0.5rem);
  padding: var(--pp-space-1, 0.25rem) var(--pp-space-2, 0.5rem);
  font-size: var(--pp-text-xs, 0.75rem);
  cursor: pointer;
  color: #4b5563;
  transition:
    border-color 0.2s,
    color 0.2s;
}

.pp-qa__toggle-answers:hover,
.pp-qa__resolve-btn:hover {
  border-color: var(--pp-primary-dark);
  color: var(--pp-primary-dark);
}

.pp-qa__toggle-answers:active,
.pp-qa__resolve-btn:active {
  background: #f0f9ff;
}

.pp-qa__toggle-answers:focus-visible,
.pp-qa__resolve-btn:focus-visible {
  outline: 3px solid var(--pp-primary-dark);
  outline-offset: 2px;
}

.pp-qa__resolve-btn[aria-pressed="true"] {
  border-color: #166534;
  color: #166534;
  font-weight: 600;
}

/* ── Answers ──────────────────────────────── */

.pp-qa__answers {
  margin-top: var(--pp-space-3, 0.75rem);
  padding-left: var(--pp-space-6, 1.5rem);
  border-left: 2px solid var(--pp-border, #d6d1ca);
}

.pp-qa__answer {
  padding: var(--pp-space-3, 0.75rem);
  margin-bottom: var(--pp-space-2, 0.5rem);
  border-radius: var(--pp-radius, 0.5rem);
}

.pp-qa__answer-header {
  display: flex;
  align-items: center;
  gap: var(--pp-space-2, 0.5rem);
  flex-wrap: wrap;
  margin-bottom: var(--pp-space-1, 0.25rem);
}

.pp-qa__answer-body {
  font-size: var(--pp-text-sm, 0.875rem);
  line-height: 1.6;
  color: var(--pp-foreground, #181817);
  white-space: pre-wrap;
  word-break: break-word;
}

.pp-qa__answer--accepted {
  border-left: 3px solid #166534;
  background: #f7f5f0;
  padding-left: var(--pp-space-4, 1rem);
  margin-left: calc(-1 * var(--pp-space-6, 1.5rem) - 2px);
}

.pp-qa__answer--instructor {
  border-left: 3px solid var(--pp-accent, #f59e0b);
  background: #fffbeb;
  padding-left: var(--pp-space-4, 1rem);
  margin-left: calc(-1 * var(--pp-space-6, 1.5rem) - 2px);
}

.pp-qa__answer--accepted.pp-qa__answer--instructor {
  border-left-color: #166534;
  background: #f7f5f0;
}

.pp-qa__accepted-label {
  display: inline-flex;
  align-items: center;
  gap: var(--pp-space-1, 0.25rem);
  color: #166534;
  font-weight: 600;
  font-size: var(--pp-text-xs, 0.75rem);
}

/* ── Accept Button ────────────────────────── */

.pp-qa__accept-btn {
  background: none;
  border: 1px solid var(--pp-border, #d6d1ca);
  border-radius: var(--pp-radius, 0.5rem);
  padding: var(--pp-space-1, 0.25rem) var(--pp-space-2, 0.5rem);
  font-size: var(--pp-text-xs, 0.75rem);
  cursor: pointer;
  color: #4b5563;
  transition:
    border-color 0.2s,
    color 0.2s;
  margin-left: auto;
}

.pp-qa__accept-btn:hover {
  border-color: #166534;
  color: #166534;
}

.pp-qa__accept-btn:active {
  background: #f7f5f0;
}

.pp-qa__accept-btn:focus-visible {
  outline: 3px solid var(--pp-primary-dark);
  outline-offset: 2px;
}

.pp-qa__accept-btn[aria-pressed="true"] {
  border-color: #166534;
  color: #166534;
  font-weight: 600;
}

/* ── Answer Form (inline) ─────────────────── */

.pp-qa__answer-form {
  margin-top: var(--pp-space-3, 0.75rem);
  display: flex;
  flex-direction: column;
  gap: var(--pp-space-2, 0.5rem);
}

.pp-qa__answer-form[hidden] {
  display: none;
}

/* ── Responsive ───────────────────────────── */

@media (max-width: 768px) {
  .pp-qa__thread {
    padding: var(--pp-space-3, 0.75rem);
  }

  .pp-qa__thread-header {
    font-size: var(--pp-text-xs, 0.75rem);
  }

  .pp-qa__answers {
    padding-left: var(--pp-space-3, 0.75rem);
  }

  .pp-qa__answer--accepted,
  .pp-qa__answer--instructor {
    margin-left: calc(-1 * var(--pp-space-3, 0.75rem) - 2px);
  }
}