.curriculum-hero{margin-bottom:2.5rem;text-align:center}.curriculum-hero h1{font-size:2.4rem;font-weight:800;margin-bottom:0.5rem;letter-spacing:-0.03em}.curriculum-hero p{color:var(--text-muted);max-width:680px;margin:0 auto;font-size:1.05rem}.module-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg,14px);padding:0;margin-bottom:2rem;box-shadow:var(--shadow-card);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);overflow:hidden}.module-card:hover{border-color:var(--accent-primary)}.module-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.25rem;flex-wrap:wrap;gap:1rem}.module-title-wrap h2{font-size:1.35rem;font-weight:700;margin-bottom:0.25rem;display:flex;align-items:center;gap:0.5rem}.module-title-wrap p{color:var(--text-muted);font-size:0.92rem;max-width:600px}.module-stats{display:flex;align-items:center;gap:1.25rem}.star-counter{display:inline-flex;align-items:center;gap:0.35rem;background:var(--bg-base);border:1px solid var(--border-color);border-radius:20px;padding:0.35rem 0.85rem;font-size:0.9rem;font-weight:700;color:#ffc107}.progress-bar-wrap{width:100%;height:6px;background:var(--bg-base);border-radius:3px;overflow:hidden;margin-bottom:1.5rem}.progress-bar-fill{height:100%;background:var(--brand-primary);border-radius:3px;transition:width 0.4s ease}.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}.lesson-card{display:block;text-decoration:none;background:var(--bg-base);border:1px solid var(--border-color);border-radius:8px;padding:1.1rem;transition:all 0.2s ease;color:inherit;position:relative}.lesson-card:hover:not(.locked){border-color:var(--brand-primary);transform:translateY(-2px);box-shadow:0 4px 14px rgba(0,0,0,0.25)}.stage-accordion-btn{width:100%;display:block;background:transparent;border:none;padding:1.5rem 1.75rem;margin:0;cursor:pointer;text-align:left;color:var(--text-primary);font:inherit;transition:background-color var(--transition-fast);-webkit-appearance:none;appearance:none}.stage-accordion-btn:hover{background-color:var(--bg-card-hover)}.stage-accordion-btn:focus-visible{outline:2px solid var(--accent-primary);outline-offset:-2px}.stage-header-inner{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:1.25rem}.stage-title-row{display:flex;align-items:center;flex-wrap:wrap;gap:0.75rem;margin-bottom:0.4rem}.stage-title-row h2{font-size:1.35rem;font-weight:800;color:var(--text-primary);display:flex;align-items:center;gap:0.5rem;margin:0}.stage-num-badge{color:var(--accent-primary);font-family:var(--font-mono);font-size:1.2rem}.stage-badges-row{display:flex;align-items:center;gap:0.5rem}.stage-desc{color:var(--text-secondary);font-size:0.95rem;line-height:1.55;margin:0;max-width:680px}.stage-chevron{display:inline-block;transition:transform 0.25s cubic-bezier(0.16,1,0.3,1);font-size:0.85rem;color:var(--text-muted);margin-left:0.25rem}[aria-expanded="true"] .stage-chevron{transform:rotate(180deg)}.stage-status-pill{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;padding:0.25rem 0.65rem;border-radius:var(--radius-full,9999px)}.stage-status-pill.pill-unlocked{background:var(--accent-subtle);color:var(--accent-primary);border:1px solid var(--accent-glow)}.stage-status-pill.pill-locked{background:var(--bg-subtle);color:var(--text-muted);border:1px solid var(--border-color)}.stage-status-pill.pill-completed{background:rgba(34,197,94,0.14);color:var(--color-success);border:1px solid rgba(34,197,94,0.3)}.stage-lessons-body{padding:0 1.75rem 1.75rem 1.75rem}.stage-accordion-btn .progress-bar-wrap{margin-top:1.25rem;margin-bottom:0}@media (max-width:768px){.stage-accordion-btn{padding:1.25rem 1rem}.stage-lessons-body{padding:0 1rem 1.25rem 1rem}.stage-title-row h2{font-size:1.15rem}}.curriculum-filter-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-bottom:2rem;padding:0.85rem 1.25rem;background:var(--bg-surface);border:1px solid var(--border-color);border-radius:10px}.curriculum-search-wrap{position:relative;flex:1;min-width:240px}.curriculum-search-input{width:100%;padding:0.55rem 0.85rem;background:var(--bg-base);border:1px solid var(--border-color);border-radius:6px;color:var(--text-base);font-size:0.9rem}.curriculum-search-input:focus{outline:none;border-color:var(--brand-primary);box-shadow:0 0 0 2px rgba(82,230,0,0.2)}.pagination-bar{display:flex;justify-content:center;align-items:center;gap:0.5rem;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border-color)}.pagination-btn{display:inline-flex;align-items:center;justify-content:center;padding:0.4rem 0.85rem;font-size:0.85rem;font-weight:600;border-radius:6px;border:1px solid var(--border-color);background:var(--bg-base);color:var(--text-base);text-decoration:none;cursor:pointer;transition:all 0.15s ease}.pagination-btn:hover:not(:disabled){border-color:var(--brand-primary);color:var(--brand-primary)}.pagination-btn.active{background:var(--brand-primary);color:#000;border-color:var(--brand-primary);font-weight:700}.pagination-btn:disabled{opacity:0.4;cursor:not-allowed}.stage-locked-message{padding:1.5rem;background:rgba(0,0,0,0.2);border:1px dashed var(--border-color);border-radius:8px;text-align:center;color:var(--text-muted);font-size:0.92rem}.lesson-card.locked{opacity:0.5;cursor:not-allowed;border-style:dashed}.lesson-num{font-size:0.75rem;font-weight:800;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-muted);margin-bottom:0.4rem}.lesson-card h3{font-size:1rem;font-weight:600;margin-bottom:0.5rem}.lesson-card p{font-size:0.82rem;color:var(--text-muted);line-height:1.4;margin-bottom:0.75rem}.lesson-footer{display:flex;justify-content:space-between;align-items:center;font-size:0.82rem;font-weight:600;padding-top:0.5rem;border-top:1px solid var(--border-color)}.stars-awarded{color:#ffc107;letter-spacing:2px}.lock-badge{color:var(--text-muted);font-size:0.8rem}.lesson-workspace-wrap{max-width:1060px;margin:1rem auto 3rem auto;width:100%}.lesson-nav-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.lesson-nav-bar a{display:inline-flex;align-items:center;gap:0.4rem;color:var(--text-muted);text-decoration:none;font-size:0.9rem;font-weight:500;transition:color 0.15s}.lesson-nav-bar a:hover{color:var(--text-base)}.lesson-meta-strip{display:flex;align-items:center;gap:1.5rem;margin-bottom:1.25rem;flex-wrap:wrap}.lesson-target-box{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:16px;padding:2.75rem 3.25rem;min-height:190px;font-family:var(--font-mono);font-size:clamp(1.65rem,2.8vw,2.15rem);line-height:2.4;letter-spacing:0.04em;cursor:text;position:relative;user-select:none;margin-bottom:2rem;box-shadow:0 4px 24px rgba(0,0,0,0.25)}.target-char{position:relative;transition:color 0.08s,background-color 0.08s;color:var(--text-muted)}.target-char.correct{color:var(--text-base)}.target-char.incorrect{color:#ff4757;background:rgba(255,71,87,0.2);border-radius:3px}.target-char.current{color:var(--brand-primary);background:var(--accent-subtle);border-bottom:3.5px solid var(--brand-primary);border-radius:3px;font-weight:700;box-shadow:0 0 12px var(--accent-glow);padding:0 2px}.keyboard-guide-wrap{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:14px;padding:1.75rem 2rem;margin-top:2rem;box-shadow:0 4px 20px rgba(0,0,0,0.15)}.keyboard-guide-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.25rem}.finger-indicator{font-size:1.05rem;font-weight:700;color:var(--brand-primary)}.virtual-keyboard{display:flex;flex-direction:column;gap:8px;align-items:center;user-select:none;width:100%}.v-row{display:flex;gap:8px;width:100%;max-width:920px}.v-key{flex:1;height:52px;display:flex;align-items:center;justify-content:center;background:var(--bg-base);border:1px solid var(--border-color);border-radius:8px;font-family:var(--font-mono);font-size:1.05rem;font-weight:600;color:var(--text-muted);transition:all 0.12s ease}.v-key.key-wide{flex:1.5}.v-key.key-wider{flex:1.8}.v-key.key-space{flex:6}.v-key.active-target{background:var(--brand-primary);color:#0b0f0c;border-color:var(--brand-primary);transform:translateY(-2px);box-shadow:0 0 16px rgba(82,230,0,0.5);font-weight:700}.v-key.home-anchor{border-bottom:3px solid var(--text-muted)}@media (max-width:768px){.lesson-target-box{padding:1.75rem 1.5rem;min-height:150px;font-size:1.45rem;line-height:2.1}.keyboard-guide-wrap{padding:1.25rem 0.75rem}.v-row{gap:4px}.v-key{height:40px;font-size:0.85rem;border-radius:6px}}@media (max-width:480px){.lesson-target-box{padding:1.25rem 0.9rem;min-height:130px;font-size:1.25rem;line-height:1.95;letter-spacing:0.02em}.keyboard-guide-wrap{padding:0.75rem 0.4rem}.v-row{gap:2px}.v-key{height:32px;font-size:0.72rem;border-radius:4px;padding:0}}.code-practice-header{margin-bottom:2rem}.code-lang-selector{display:flex;gap:0.5rem;overflow-x:auto;padding-bottom:0.5rem;margin-bottom:1.5rem;border-bottom:1px solid var(--border-color)}.lang-tab{padding:0.5rem 1.1rem;border-radius:6px;background:transparent;border:1px solid transparent;color:var(--text-muted);font-size:0.9rem;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap;transition:all 0.15s ease}.lang-tab:hover{color:var(--text-base);background:var(--bg-surface)}.lang-tab.active{background:var(--bg-surface);color:var(--brand-primary);border-color:var(--border-color)}.code-layout-grid{display:grid;grid-template-columns:280px 1fr;gap:1.75rem;align-items:start;max-width:1080px;margin:0 auto}@media (max-width:900px){.code-layout-grid{grid-template-columns:1fr}}.snippet-sidebar{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:12px;padding:1rem}.snippet-item{display:block;padding:0.75rem 0.9rem;border-radius:6px;text-decoration:none;color:var(--text-base);margin-bottom:0.4rem;border:1px solid transparent;transition:all 0.15s ease}.snippet-item:hover{background:var(--bg-base);border-color:var(--border-color)}.snippet-item.active{background:var(--bg-base);border-color:var(--brand-primary)}.snippet-item h4{font-size:0.92rem;font-weight:600;margin-bottom:0.2rem}.snippet-difficulty{font-size:0.75rem;text-transform:uppercase;letter-spacing:0.04em;color:var(--text-muted)}.code-editor-container{background:#0d110e;border:1px solid var(--border-color);border-radius:12px;overflow:hidden;box-shadow:0 8px 30px rgba(0,0,0,0.4)}.code-editor-topbar{display:flex;justify-content:space-between;align-items:center;background:var(--bg-surface);padding:0.75rem 1.25rem;border-bottom:1px solid var(--border-color)}.code-editor-body{display:flex;min-height:340px;font-family:var(--font-mono);font-size:clamp(1.15rem,1.8vw,1.35rem);line-height:1.95;position:relative;cursor:text}.code-line-numbers{padding:1.25rem 0.75rem;color:#4a5d4e;text-align:right;user-select:none;border-right:1px solid rgba(255,255,255,0.05);background:rgba(0,0,0,0.15)}.code-text-canvas{flex:1;padding:1.25rem 1.5rem;white-space:pre-wrap;word-break:break-all;position:relative;outline:none}.code-char{color:#647b68}.code-char.correct{color:#d6e2d8}.code-char.incorrect{color:#ff4757;background:rgba(255,71,87,0.25);border-radius:2px}.code-char.auto-indent{color:#3b493e;opacity:0.6}.code-char.current{color:var(--brand-primary);background:var(--accent-subtle);border-left:3px solid var(--brand-primary);box-shadow:0 0 10px var(--accent-glow)}.code-metrics-bar{display:flex;gap:2rem;background:var(--bg-surface);border-top:1px solid var(--border-color);padding:0.75rem 1.25rem;font-size:0.88rem;color:var(--text-muted)}.code-metrics-bar strong{color:var(--text-base)}