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.ai-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.ai-generate-modal .ai-input{width:100%;padding:.55rem .75rem;background:var(--surface-muted);color:var(--text-primary);border:1px solid var(--border-card);border-radius:var(--radius-md);font:inherit;font-size:var(--font-size-base);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast)}.ai-generate-modal .ai-input:focus{outline:none;border-color:var(--accent-jade);background:var(--surface-card);box-shadow:var(--ring-focus)}.ai-generate-modal .ai-error{margin:0;color:var(--accent-coral);font-size:var(--font-size-sm)}.vocab-frequency-btn{display:inline-flex;align-items:center;gap:.4em;white-space:nowrap}.vocab-frequency-btn 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1.4rem);font-weight:var(--font-weight-bold);color:var(--accent-jade);line-height:1.1}.freq-band-label{font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-top:.15em}.freq-band-sub{font-size:var(--font-size-xs);color:var(--text-muted);margin-top:.1em}.freq-legend{margin:0;font-size:var(--font-size-sm);color:var(--text-muted);display:flex;align-items:center;gap:.5em;flex-wrap:wrap}.freq-legend-mastery{width:3em;height:.7em;border-radius:var(--radius-sm);flex:none;background:linear-gradient(90deg,#b23434,#b2b234,#34b234)}.freq-toolbar{display:flex;align-items:center;gap:var(--spacing-sm);flex-wrap:wrap}.freq-toolbar-note{font-size:var(--font-size-sm);color:var(--text-muted)}.freq-list{overflow-y:auto;height:56vh;border:1px solid var(--border-card);border-radius:var(--radius-md)}.freq-list-sizer{position:relative;width:100%}.freq-list-window{position:absolute;top:0;left:0;right:0}.freq-row{height:30px;box-sizing:border-box;display:flex;align-items:center;gap:var(--spacing-sm);padding:0 var(--spacing-sm);border-bottom:1px solid var(--border-card)}.freq-row:last-child{border-bottom:none}.freq-rank{flex:none;min-width:3.2em;text-align:right;font-variant-numeric:tabular-nums;font-size:var(--font-size-sm);color:var(--text-muted)}.freq-word{color:var(--text-muted);overflow-wrap:anywhere}.freq-row.is-added .freq-word{color:var(--text-primary);font-weight:var(--font-weight-medium)}.freq-row.is-added:not(.has-mastery){box-shadow:inset 3px 0 0 var(--accent-jade)}.freq-row.has-mastery{background-color:hsl(calc(var(--mastery) * 120),55%,32%,.2);box-shadow:inset 3px 0 hsl(calc(var(--mastery) * 120),65%,50%)}