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var(--line);color:var(--ink-faint);border-radius:50%;flex:none;justify-content:center;align-items:center;display:flex}.path-dot.done{background:var(--sage);border-color:var(--sage);color:var(--paper)}.path-dot.active{border-color:var(--brick);color:var(--brick)}.path-label{color:var(--ink-soft);font-size:13.5px}.path-item.current .path-label{color:var(--ink);font-weight:500}.progress-note{color:var(--ink-faint);font-size:11.5px;font-family:var(--font-mono);margin:10px 8px 0}.unit-head{margin-bottom:1.5rem}.eyebrow{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--brick);margin:0 0 4px;font-size:11px}.unit-title{font-family:var(--font-serif);margin:0;font-size:28px;font-weight:600}.section-label{font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 10px;font-size:11.5px}.formula-card{border:.5px solid var(--line);background:var(--paper-2);border-radius:10px;margin-bottom:1.25rem;padding:12px 16px}.formula-text{font-family:var(--font-mono);color:var(--ink);margin:0;font-size:13.5px}.practice-more-btn{font-family:var(--font-sans);border:.5px solid var(--brick);color:var(--brick);cursor:pointer;background:0 0;border-radius:8px;padding:8px 14px;font-size:13.5px;font-weight:500;display:inline-block}.practice-more-btn:hover{background:var(--brick-light)}.bridge-card{border:.5px solid var(--line);background:var(--paper);border-radius:12px;margin-bottom:1.75rem;overflow:hidden}.bridge-row{grid-template-columns:1fr 20px 1fr;display:grid}.bridge-row+.bridge-row{border-top:.5px solid var(--line)}@media (max-width:520px){.bridge-row{grid-template-columns:1fr}.bridge-seam{display:none}.bridge-half{border-top:1px dashed var(--line)}.bridge-half:first-child{border-top:none}}.bridge-half{padding:14px 18px}.bridge-half.es{background:var(--amber-light)}.bridge-half.en{background:var(--sage-light)}.bridge-tag{font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase;margin:0 0 6px;font-size:10.5px}.bridge-half.es .bridge-tag{color:var(--amber)}.bridge-half.en .bridge-tag{color:var(--sage)}.bridge-text{margin:0;font-size:15px;line-height:1.5}.bridge-seam{background:var(--paper);position:relative}.bridge-seam:before{content:"";border-left:1px dashed var(--line);position:absolute;top:0;bottom:0;left:50%}.bridge-explain{color:var(--ink-soft);border-top:.5px solid var(--line);padding:12px 18px;font-size:13.5px;line-height:1.6}.vocab-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;margin-bottom:1.75rem;display:grid}.vocab-card{border:.5px solid var(--line);background:var(--paper);border-radius:10px;padding:11px 13px}.vocab-pair{align-items:baseline;gap:6px;margin-bottom:5px;display:flex}.vocab-en{font-size:15px;font-weight:500}.vocab-es{color:var(--ink-faint);font-size:13px}.vocab-arrow{color:var(--ink-faint);font-size:12px}.badge{font-family:var(--font-mono);letter-spacing:.02em;border-radius:999px;padding:2px 7px;font-size:10px;display:inline-block}.badge.cognate{background:var(--sage-light);color:var(--sage)}.badge.false-friend{background:var(--brick-light);color:var(--brick)}.badge.unrelated{background:var(--paper-2);color:var(--ink-faint)}.vocab-legend{border:.5px solid var(--line);background:var(--paper-2);border-radius:10px;flex-direction:column;gap:6px;margin:-6px 0 14px;padding:12px 14px;display:flex}.vocab-legend-item{align-items:center;gap:9px;display:flex}.vocab-legend-text{color:var(--ink-soft);font-size:12.5px}.story-card{border:.5px solid var(--line);background:var(--paper);border-radius:12px;margin-bottom:1.75rem;padding:18px 20px}.story-text{font-family:var(--font-serif);margin:0 0 10px;font-size:16.5px;line-height:1.85}.story-text mark{background:var(--brick-light);color:var(--brick);-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:3px;padding:0 2px;font-weight:500}.story-translate-btn{color:var(--brick);font-family:var(--font-sans);cursor:pointer;background:0 0;border:none;padding:0;font-size:13px;font-weight:500}.story-translation{border-top:1px dashed var(--line);color:var(--ink-soft);margin-top:10px;padding-top:10px;font-size:14px;line-height:1.7;display:none}.story-translation.shown{display:block}.quiz-card{border:.5px solid var(--line);background:var(--paper);border-radius:12px;margin-bottom:1.5rem;padding:18px 20px}.quiz-q{margin:0 0 12px;font-size:15px}.quiz-options{flex-direction:column;gap:8px;display:flex}.quiz-opt{text-align:left;border:.5px solid var(--line);background:var(--paper);font-family:var(--font-sans);cursor:pointer;color:var(--ink);border-radius:8px;padding:10px 13px;font-size:14px}.quiz-opt:hover{border-color:var(--ink-faint)}.quiz-opt.correct{background:var(--sage-light);border-color:var(--sage);color:var(--sage);font-weight:500}.quiz-opt.wrong{background:var(--brick-light);border-color:var(--brick);color:var(--brick)}.quiz-feedback{color:var(--ink-soft);margin-top:10px;font-size:13.5px}.complete-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.complete-row-left{align-items:center;gap:12px;display:flex}.complete-btn{font-family:var(--font-sans);background:var(--brick);color:var(--paper);cursor:pointer;border:none;border-radius:8px;padding:10px 18px;font-size:14px;font-weight:500}.complete-btn:disabled{background:var(--sage);cursor:default}.save-status{color:var(--ink-faint);font-size:12px;font-family:var(--font-mono)}.explore-search{border:.5px solid var(--line);width:100%;font-family:var(--font-sans);background:var(--paper);color:var(--ink);border-radius:8px;margin-bottom:1.25rem;padding:10px 13px;font-size:14px}.explore-search:focus{border-color:var(--brick);outline:none}.practice-card{border:.5px solid var(--line);background:var(--paper);border-radius:12px;padding:22px 24px}.practice-prompt{font-family:var(--font-serif);margin:0 0 6px;font-size:19px;line-height:1.5}.practice-instruction{font-family:var(--font-mono);color:var(--ink-faint);letter-spacing:.02em;margin:0 0 18px;font-size:11.5px}.practice-answer-box{border:1px dashed var(--line);background:var(--paper-2);border-radius:10px;flex-wrap:wrap;align-items:center;gap:8px;min-height:46px;margin-bottom:18px;padding:10px 12px;display:flex}.practice-placeholder{color:var(--ink-faint);font-family:var(--font-mono);font-size:13px}.practice-chip-bank{flex-wrap:wrap;gap:8px;min-height:38px;margin-bottom:1.5rem;display:flex}.chip{border:.5px solid var(--line);background:var(--paper);font-family:var(--font-sans);cursor:pointer;color:var(--ink);border-radius:8px;padding:8px 14px;font-size:14px}.chip:hover{border-color:var(--ink-faint)}.chip.placed{background:var(--sage-light);border-color:var(--sage);color:var(--sage)}.practice-card .complete-btn:disabled{background:var(--ink-faint)}.practice-card .quiz-feedback{background:var(--paper-2);border-radius:8px;margin:4px 0 20px;padding:12px 14px;font-size:15px;line-height:1.6}.practice-card .quiz-feedback.correct{background:var(--sage-light);color:var(--sage)}.practice-card .quiz-feedback.wrong{background:var(--brick-light);color:var(--brick)}.loading-note{color:var(--ink-faint);padding:20px 8px;font-size:13.5px}