/* ============================================================
   output_lab.css — Output Lab (Writing / Pronunciation / Shadowing / Role-play)
   ============================================================ */

/* ── Tabs ──────────────────────────────────────────────── */
.output-lab-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 4px;
}
.output-lab-tab {
  flex-shrink: 0;
  padding: 10px 18px;
  background: var(--surface2);
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text2);
  font-family: inherit;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all .15s;
}
.output-lab-tab:hover { color: var(--text); border-color: var(--accent); }
.output-lab-tab.active {
  background: linear-gradient(135deg, #60A5FA, #A78BFA);
  color: #fff;
}

/* ── Pronunciation Trainer ─────────────────────────────── */
.pron-level-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.pron-level-tab {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: inherit;
  font-size: .85rem;
  color: var(--text2);
  cursor: pointer;
  transition: all .15s;
}
.pron-level-tab:hover { color: var(--text); }
.pron-level-tab.active {
  background: var(--accent, #60A5FA);
  color: #fff;
}

.pron-drill-card {
  padding: 22px;
  background: var(--surface2);
  border-radius: 14px;
  border: 1px solid var(--surface);
}
.pron-focus {
  font-size: .8rem;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 8px;
}
.pron-sentence {
  font-size: 1.4rem;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--text);
  font-weight: 500;
}
.pron-tip {
  font-size: .85rem;
  color: var(--text2);
  margin: 0 0 16px;
  padding: 8px 12px;
  background: rgba(96, 165, 250, 0.1);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}
.pron-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.pron-actions .pron-btn { flex: 1; min-width: 110px; }

.pron-btn.recording {
  background: #EF4444;
  color: #fff;
  animation: pulse 1.2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: .6; }
}

.pron-result-card {
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--surface2);
  border-left: 4px solid #94A3B8;
}
.pron-result-card.perfect { border-left-color: #10B981; }
.pron-result-card.good    { border-left-color: #10B981; }
.pron-result-card.fair    { border-left-color: #F59E0B; }
.pron-result-card.low     { border-left-color: #EF4444; }

/* ── Shadowing ─────────────────────────────────────────── */
.shadow-clip-card {
  padding: 20px;
  background: var(--surface2);
  border-radius: 14px;
}
.shadow-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.shadow-topic {
  font-size: .75rem;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.shadow-duration {
  font-size: .75rem;
  color: var(--text2);
  background: var(--surface);
  padding: 2px 8px;
  border-radius: 6px;
}
.shadow-text {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 18px;
  padding: 14px;
  background: var(--surface);
  border-radius: 10px;
  border-left: 3px solid var(--accent);
}
.shadow-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.shadow-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--surface);
  border-radius: 10px;
  flex-wrap: wrap;
}
.shadow-step > span:nth-child(2) {
  flex: 1;
  color: var(--text);
  font-size: .9rem;
  min-width: 140px;
}
.shadow-step-num {
  width: 24px;
  height: 24px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
}

/* ── Role-play ─────────────────────────────────────────── */
.roleplay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 10px;
}
.roleplay-card {
  display: flex;
  gap: 14px;
  padding: 14px;
  background: var(--surface2);
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font-family: inherit;
  transition: all .15s;
}
.roleplay-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.roleplay-card.done {
  border-color: rgba(16, 185, 129, 0.4);
}
.roleplay-icon {
  font-size: 1.8rem;
  line-height: 1;
}
.roleplay-card-body { flex: 1; }
.roleplay-title {
  font-weight: 700;
  font-size: .95rem;
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 4px;
}
.roleplay-sit {
  color: var(--text2);
  font-size: .8rem;
  line-height: 1.4;
  margin-bottom: 6px;
}
.roleplay-meta {
  display: flex;
  gap: 6px;
  font-size: .7rem;
  color: var(--text2);
}
.roleplay-level {
  background: var(--accent);
  color: #fff;
  padding: 1px 8px;
  border-radius: 6px;
  font-weight: 700;
}

.roleplay-roles {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--surface2);
  border-radius: 10px;
  margin-bottom: 14px;
  font-size: .85rem;
}
.roleplay-roles strong { color: var(--accent); }

.roleplay-chat {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 380px;
  overflow-y: auto;
  padding: 14px;
  background: var(--surface);
  border-radius: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--surface2);
}
.rp-msg {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: .92rem;
  line-height: 1.5;
  max-width: 85%;
}
.rp-msg-user {
  background: var(--accent);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.rp-msg-user strong { color: rgba(255,255,255,.85); }
.rp-msg-model {
  background: var(--surface2);
  color: var(--text);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
.rp-msg-model strong { color: var(--accent); }
.rp-msg .speak-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  margin-left: 4px;
  opacity: .7;
}
.rp-msg .speak-btn:hover { opacity: 1; }

.roleplay-input-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.roleplay-input-row textarea {
  flex: 1;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--surface2);
  background: var(--surface2);
  color: var(--text);
  font-family: inherit;
  font-size: .95rem;
  resize: none;
  outline: none;
}
.roleplay-input-row textarea:focus { border-color: var(--accent); }

.roleplay-eval-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.eval-cell {
  padding: 12px 14px;
  background: var(--surface2);
  border-radius: 10px;
}
.eval-cell small {
  display: block;
  font-weight: 700;
  color: var(--text2);
  font-size: .75rem;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.eval-cell ul { margin: 0; padding-left: 18px; font-size: .85rem; }
.eval-cell ul li { margin-bottom: 2px; }
.eval-cell > div { font-size: .85rem; line-height: 1.5; }

.eval-section {
  padding: 14px 16px;
  border-radius: 12px;
  margin-bottom: 12px;
}
.eval-strengths {
  background: rgba(16,185,129,.1);
  border-left: 3px solid #10B981;
}
.eval-tips {
  background: rgba(245,158,11,.1);
  border-left: 3px solid #F59E0B;
}
.eval-example {
  background: rgba(96,165,250,.1);
  border-left: 3px solid var(--accent);
}
.eval-example-text {
  margin-top: 6px;
  font-style: italic;
  color: var(--text);
  line-height: 1.5;
}
.eval-section ul { margin: 6px 0 0; padding-left: 20px; }
.eval-section ul li { margin-bottom: 4px; line-height: 1.5; }

/* ── Mobile ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  .pron-sentence { font-size: 1.15rem; }
  .pron-actions .pron-btn { flex-basis: 100%; }
  .roleplay-chat { max-height: 300px; }
  .roleplay-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Streak Heatmap (GitHub-style)
   ============================================================ */
.streak-heatmap-card {
  padding: 20px;
  margin-bottom: 16px;
}
.streak-heatmap-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 8px;
}
.streak-heatmap-summary {
  font-size: .85rem;
  color: var(--text2);
}
.streak-heatmap-summary strong { color: var(--text); }

.streak-heatmap-grid {
  display: grid;
  grid-template-columns: repeat(53, 1fr);
  gap: 3px;
  overflow-x: auto;
  padding-bottom: 6px;
}
.streak-day {
  aspect-ratio: 1;
  min-width: 10px;
  border-radius: 2px;
  background: var(--surface2);
  position: relative;
  cursor: default;
}
.streak-day.l1 { background: rgba(16,185,129,.25); }
.streak-day.l2 { background: rgba(16,185,129,.5); }
.streak-day.l3 { background: rgba(16,185,129,.75); }
.streak-day.l4 { background: rgba(16,185,129,1); }
.streak-day:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%);
  background: #1F2937;
  color: #fff;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: .7rem;
  white-space: nowrap;
  z-index: 10;
  pointer-events: none;
}

.streak-heatmap-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .7rem;
  color: var(--text2);
  margin-top: 10px;
  justify-content: flex-end;
}
.streak-heatmap-legend .legend-square {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

/* ============================================================
   Weakness Detection
   ============================================================ */
.weakness-card {
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid var(--surface2);
}
.weakness-empty {
  text-align: center;
  padding: 30px 20px;
  color: var(--text2);
}
.weakness-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.weakness-item {
  padding: 14px 16px;
  background: var(--surface2);
  border-radius: 12px;
  border-left: 4px solid #F59E0B;
}
.weakness-item-rank {
  display: inline-block;
  background: #F59E0B;
  color: #fff;
  font-weight: 700;
  font-size: .7rem;
  padding: 2px 8px;
  border-radius: 6px;
  margin-bottom: 6px;
}
.weakness-item-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 4px;
}
.weakness-item-desc {
  font-size: .85rem;
  color: var(--text2);
  line-height: 1.5;
  margin-bottom: 8px;
}
.weakness-item-example {
  font-size: .85rem;
  padding: 8px 12px;
  background: var(--surface);
  border-radius: 8px;
  margin-bottom: 8px;
}
.weakness-item-example .wrong {
  color: #EF4444;
  text-decoration: line-through;
}
.weakness-item-example .right {
  color: #10B981;
  font-weight: 600;
}
.weakness-item-drill {
  margin-top: 8px;
}