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var(--color-border);border-radius:var(--radius-full);padding:var(--space-3) var(--space-5);cursor:pointer;color:var(--color-text-label);background:0 0;align-self:flex-start;transition:background .15s,border-color .15s}.words-mastered-toggle:hover,.words-mastered-toggle.is-open{background:var(--color-surface);border-color:var(--color-text-label)}.practice-header{align-self:stretch;gap:var(--space-5);margin-bottom:var(--space-2);flex-direction:column;display:flex}.practice-header-row{align-items:baseline;gap:var(--space-5);display:flex}.practice-header-eyebrow{color:var(--color-text-label);margin:0}.practice-header-exit{align-items:center;gap:var(--space-2);border-radius:var(--radius-full);padding:var(--space-2) var(--space-4);cursor:pointer;font-family:var(--font-sans);color:var(--color-text-secondary);background:0 0;border:0;margin-left:auto;font-size:14px;font-weight:600;transition:background .15s,color 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#00000038}.toast--success{background:var(--color-success-deep);color:var(--color-success-tint)}.toast--closing{animation:.2s ease-in forwards toast-out}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%)}}@keyframes toast-out{0%{opacity:1}to{opacity:0}}@media (prefers-reduced-motion:reduce){.toast,.toast--closing{animation:none}}
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