/* ============================================================
   Note Test — AI MCQ test generated from a single note.
   ============================================================ */

.ntest {
  max-width: 780px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

.ntest__header,
.ntest__qheader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.ntest__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  background: var(--color-surface-2, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out);
}
.ntest__back:hover { background: var(--color-surface-hover, var(--color-border)); }

.ntest__badge {
  padding: 4px 12px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border-radius: 999px;
}

/* ── Setup ─────────────────────────────────────────────── */
.ntest__setup-card {
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.ntest__title { margin: 0 0 4px; font-size: var(--font-size-2xl); }
.ntest__subtitle { margin: 0 0 24px; color: var(--color-text-secondary); }
.ntest__scope {
  margin: -16px 0 20px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  border-left: 3px solid var(--color-accent);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.ntest__field { margin-bottom: 24px; }
.ntest__label {
  display: block;
  margin-bottom: 12px;
  font-weight: var(--font-weight-semibold);
}
.ntest__counts { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.ntest-count {
  min-width: 54px;
  padding: 10px 16px;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  background: var(--color-surface-2, var(--color-bg));
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.ntest-count:hover { border-color: var(--color-accent); }
.ntest-count.is-active {
  color: var(--color-text-inverse);
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.ntest__custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.ntest__custom input {
  width: 90px;
  padding: 8px 10px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text-primary);
}

.ntest__marking {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}
.ntest__mark {
  padding: 5px 12px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: 999px;
}
.ntest__mark--pos { color: var(--color-success, #1a7f4b); background: color-mix(in srgb, var(--color-success, #1a7f4b) 14%, transparent); }
.ntest__mark--neg { color: var(--color-danger, #c0392b); background: color-mix(in srgb, var(--color-danger, #c0392b) 14%, transparent); }
.ntest__mark--zero { color: var(--color-text-secondary); background: var(--color-surface-2, var(--color-border)); }

.ntest__start { width: 100%; }
.ntest__hint {
  margin: 12px 0 0;
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary, var(--color-text-secondary));
}

/* ── Loading ───────────────────────────────────────────── */
.ntest--loading { display: flex; align-items: center; justify-content: center; min-height: 60vh; }
.ntest__loader { text-align: center; }
.ntest__loader .ui-spinner { margin: 0 auto 20px; width: 42px; height: 42px; }
.ntest__loader h2 { margin: 0 0 6px; }
.ntest__loader p { margin: 0; color: var(--color-text-secondary); }

/* ── Question ──────────────────────────────────────────── */
.ntest__counter { font-weight: var(--font-weight-semibold); }
.ntest__diff {
  padding: 3px 10px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: capitalize;
  border-radius: 999px;
}
.ntest__diff--easy { color: #1a7f4b; background: color-mix(in srgb, #1a7f4b 14%, transparent); }
.ntest__diff--medium { color: #b7791f; background: color-mix(in srgb, #b7791f 16%, transparent); }
.ntest__diff--hard { color: #c0392b; background: color-mix(in srgb, #c0392b 14%, transparent); }

.ntest__progress {
  height: 6px;
  background: var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 22px;
}
.ntest__progress-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
  transition: width var(--duration-normal) var(--ease-out);
}

.ntest__qcard {
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.ntest__question {
  margin: 0 0 16px;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  line-height: 1.55;
}

.ntest__format {
  display: inline-block;
  margin-bottom: 10px;
  padding: 0.2rem 0.55rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #0369a1;
  background: rgba(14, 165, 233, 0.12);
  border-radius: 999px;
}

.ntest__statements {
  margin: 0 0 18px;
  padding-left: 22px;
  color: var(--color-text-primary);
}
.ntest__statements li { margin-bottom: 6px; }

.ntest__ar {
  margin: 0 0 18px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--color-bg-subtle, rgba(0, 0, 0, 0.03));
  border: 1px solid var(--color-border);
}

.ntest__ar-line {
  margin: 0 0 8px;
  line-height: 1.5;
  font-size: var(--font-size-sm);
}

.ntest__ar-line:last-child {
  margin-bottom: 0;
}

.ntest__match {
  margin: 0 0 18px;
}

.ntest__match-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  margin-bottom: 8px;
}

.ntest__match-table th,
.ntest__match-table td {
  border: 1px solid var(--color-border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  width: 50%;
}

.ntest__match-table th {
  background: var(--color-bg-subtle, rgba(0, 0, 0, 0.04));
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.ntest__list-num {
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-right: 4px;
}

.ntest__match-hint {
  margin: 0;
  font-size: 0.75rem;
  color: var(--color-text-tertiary, #64748b);
}

.ntest__options { display: flex; flex-direction: column; gap: 10px; }
.ntest__option {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  text-align: left;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.ntest__option:not(:disabled):hover {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}
.ntest__option-key {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-secondary);
  background: var(--color-surface-2, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: 50%;
}
.ntest__option-text { flex: 1; }
.ntest__option.is-correct {
  border-color: var(--color-success, #1a7f4b);
  background: color-mix(in srgb, var(--color-success, #1a7f4b) 12%, transparent);
}
.ntest__option.is-correct .ntest__option-key { color: #fff; background: var(--color-success, #1a7f4b); border-color: transparent; }
.ntest__option.is-wrong {
  border-color: var(--color-danger, #c0392b);
  background: color-mix(in srgb, var(--color-danger, #c0392b) 12%, transparent);
}
.ntest__option.is-wrong .ntest__option-key { color: #fff; background: var(--color-danger, #c0392b); border-color: transparent; }
.ntest__option.is-dim { opacity: 0.55; }

.ntest__feedback {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-border);
}
.ntest__feedback.is-correct { border-left-color: var(--color-success, #1a7f4b); background: color-mix(in srgb, var(--color-success, #1a7f4b) 8%, transparent); }
.ntest__feedback.is-wrong { border-left-color: var(--color-danger, #c0392b); background: color-mix(in srgb, var(--color-danger, #c0392b) 8%, transparent); }
.ntest__feedback.is-skipped { border-left-color: var(--color-text-secondary); background: var(--color-surface-2, var(--color-bg)); }
.ntest__feedback strong { display: block; margin-bottom: 4px; }
.ntest__feedback p { margin: 0; color: var(--color-text-secondary); line-height: 1.55; }

.ntest__nav { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ── Result ────────────────────────────────────────────── */
.ntest__scorecard {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  margin-bottom: 20px;
}
.ntest__scorecard.is-high { background: color-mix(in srgb, var(--color-success, #1a7f4b) 10%, var(--color-surface)); }
.ntest__scorecard.is-mid { background: color-mix(in srgb, #b7791f 10%, var(--color-surface)); }
.ntest__scorecard.is-low { background: color-mix(in srgb, var(--color-danger, #c0392b) 8%, var(--color-surface)); }
.ntest__score-main { line-height: 1; }
.ntest__score-value { font-size: 56px; font-weight: var(--font-weight-bold); }
.ntest__score-max { font-size: var(--font-size-xl); color: var(--color-text-secondary); margin-left: 4px; }
.ntest__verdict { margin: 12px 0 4px; font-size: var(--font-size-md); font-weight: var(--font-weight-medium); }
.ntest__score-note { margin: 0; font-size: var(--font-size-sm); color: var(--color-text-secondary); }

.ntest__stat-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-bottom: 28px;
}
.ntest__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.ntest__stat-val { font-size: var(--font-size-lg); font-weight: var(--font-weight-bold); }
.ntest__stat-lbl { font-size: var(--font-size-xs); color: var(--color-text-secondary); }

.ntest__section { margin-bottom: 28px; }
.ntest__section-title { margin: 0 0 14px; font-size: var(--font-size-lg); }

.ntest__diff-rows { display: flex; flex-direction: column; gap: 10px; }
.ntest__diff-row { display: flex; align-items: center; gap: 12px; }
.ntest__diff-label { flex-shrink: 0; width: 72px; text-align: center; padding: 3px 0; font-size: var(--font-size-xs); font-weight: var(--font-weight-semibold); text-transform: capitalize; border-radius: 999px; }
.ntest__diff-bar { flex: 1; height: 8px; background: var(--color-border); border-radius: 999px; overflow: hidden; }
.ntest__diff-bar-fill { height: 100%; background: var(--color-accent); border-radius: 999px; }
.ntest__diff-val { flex-shrink: 0; width: 44px; text-align: right; font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); }

/* AI feedback */
.ntest__ai-summary { margin: 0 0 16px; line-height: 1.6; }
.ntest__ai-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.ntest__ai-block { padding: 14px 16px; border-radius: var(--radius-md); border: 1px solid var(--color-border); }
.ntest__ai-block h3 { margin: 0 0 8px; font-size: var(--font-size-sm); }
.ntest__ai-block ul { margin: 0; padding-left: 18px; }
.ntest__ai-block li { margin-bottom: 5px; font-size: var(--font-size-sm); color: var(--color-text-secondary); }
.ntest__ai-block--good { border-left: 3px solid var(--color-success, #1a7f4b); }
.ntest__ai-block--warn { border-left: 3px solid var(--color-danger, #c0392b); }
.ntest__ai-block--info { border-left: 3px solid var(--color-accent); }
.ntest__ai-encourage { margin: 16px 0 0; font-style: italic; color: var(--color-text-secondary); }

/* Review */
.ntest__review { display: flex; flex-direction: column; gap: 8px; }
.ntest__review-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  border-left: 3px solid var(--color-border);
}
.ntest__review-item.is-correct { border-left-color: var(--color-success, #1a7f4b); }
.ntest__review-item.is-wrong { border-left-color: var(--color-danger, #c0392b); }
.ntest__review-item.is-skipped { border-left-color: var(--color-text-secondary); }
.ntest__review-item summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  list-style: none;
}
.ntest__review-item summary::-webkit-details-marker { display: none; }
.ntest__review-num { flex-shrink: 0; font-weight: var(--font-weight-bold); color: var(--color-text-secondary); }
.ntest__review-q { flex: 1; font-size: var(--font-size-sm); }
.ntest__review-tag { flex-shrink: 0; font-weight: var(--font-weight-bold); }
.ntest__review-body { padding: 0 14px 14px 38px; font-size: var(--font-size-sm); }
.ntest__review-body p { margin: 4px 0; line-height: 1.5; }
.ntest__review-exp { color: var(--color-text-secondary); }
.ntest__review-skip { color: var(--color-text-secondary); font-style: italic; }

.ntest__result-actions { display: flex; gap: 12px; justify-content: center; }

@media (max-width: 620px) {
  .ntest__stat-grid { grid-template-columns: repeat(3, 1fr); }
  .ntest__result-actions { flex-direction: column; }
}