/* ── Results & Analytics Screen (Linear Obsidian Theme) ── */

.results-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-hairline);
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.score-meta {
  flex: 1;
  min-width: 240px;
}

.achievement-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--r-full);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.achievement-badge.gold {
  background: var(--accent-amber-soft);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.4);
  box-shadow: 0 0 16px var(--accent-amber-glow);
}

.achievement-badge.green {
  background: var(--accent-emerald-soft);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.4);
  box-shadow: 0 0 16px var(--accent-emerald-glow);
}

.achievement-badge.blue {
  background: var(--accent-indigo-soft);
  color: var(--accent-indigo);
  border: 1px solid rgba(99, 102, 241, 0.4);
  box-shadow: 0 0 16px var(--accent-indigo-glow);
}

.results-hero h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.score-display-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: 10px;
}

.score-display-row .score-num {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 4vw, 3.2rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.score-display-row .score-denom {
  font-size: 16px;
  color: var(--ink-secondary);
  font-weight: 500;
}

.results-hero p {
  color: var(--ink-secondary);
  font-size: 14px;
  margin-top: 10px;
  line-height: 1.5;
}

/* Circular Score Gauge */
.circle-gauge {
  position: relative;
  width: 130px;
  height: 130px;
  flex-shrink: 0;
}

.circle-gauge svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.circle-gauge .gauge-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 8;
}

.circle-gauge .gauge-fill {
  fill: none;
  stroke: var(--accent-emerald);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 283;
  stroke-dashoffset: 283;
  transition: stroke-dashoffset 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 0 8px var(--accent-emerald-glow));
}

.circle-gauge-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  font-family: var(--font-mono);
}

.circle-gauge-text strong {
  display: block;
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.circle-gauge-text span {
  font-size: 10.5px;
  text-transform: uppercase;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  margin-top: 3px;
  display: block;
}

/* Stats Metric Strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 32px;
}

.stat-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-hairline);
  border-radius: var(--r-md);
  padding: 16px 18px;
  transition: border-color 0.18s ease;
}

.stat-box:hover {
  border-color: var(--border-hover);
}

.stat-box .label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 6px;
}

.stat-box strong {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}

/* Topic Mastery Breakdown */
.mastery-section {
  margin-bottom: 36px;
}

.section-subhead {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.topic-mastery-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.topic-mastery-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border-radius: var(--r-md);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-hairline);
  flex-wrap: wrap;
}

.topic-mastery-meta {
  flex: 1;
  min-width: 180px;
}

.topic-mastery-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-primary);
  display: block;
  margin-bottom: 6px;
}

.mastery-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--r-full);
  overflow: hidden;
}

.mastery-bar-fill {
  height: 100%;
  border-radius: var(--r-full);
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.mastery-bar-fill.high { background: var(--accent-emerald); }
.mastery-bar-fill.mid { background: var(--accent-amber); }
.mastery-bar-fill.low { background: var(--accent-coral); }

.topic-mastery-score {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  min-width: 55px;
  text-align: right;
  color: #fff;
}

.drill-topic-btn {
  padding: 6px 14px;
  border-radius: var(--r-full);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  background: var(--accent-indigo-soft);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--accent-indigo);
  cursor: pointer;
  transition: all 0.16s ease;
}

.drill-topic-btn:hover {
  background: var(--accent-indigo);
  color: #fff;
  transform: translateY(-1px);
}

/* Review List */
.review-item {
  border-top: 1px solid var(--border-hairline);
  padding: 24px 0;
}

.review-item:first-child {
  border-top: none;
  padding-top: 8px;
}

.review-item .verdict {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: var(--r-full);
  margin-bottom: 12px;
}

.verdict.right {
  background: var(--accent-emerald-soft);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.verdict.wrong {
  background: var(--accent-coral-soft);
  color: var(--accent-coral);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.verdict.skipped {
  background: var(--accent-amber-soft);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.review-q-text {
  font-size: 15.5px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.5;
}

.review-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.review-opt {
  font-size: 14px;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.02);
  color: var(--ink-secondary);
  border: 1px solid var(--border-hairline);
  line-height: 1.45;
}

.review-opt.user-picked-wrong {
  background: var(--accent-coral-soft);
  border-color: rgba(244, 63, 94, 0.35);
  color: #ffe4e6;
}

.review-opt.is-correct {
  background: var(--accent-emerald-soft);
  border-color: rgba(16, 185, 129, 0.35);
  color: #d1fae5;
  font-weight: 500;
}

@media (max-width: 650px) {
  .stats-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .results-hero {
    flex-direction: column-reverse;
    align-items: flex-start;
  }
}