.typing-tutor-container{--tutor-bg:#1e1e1e;--tutor-text:#e0e0e0;--tutor-muted:#a0a0a0;--tutor-dimmed:#606060;--tutor-accent:#7d9dcc;--tutor-secondary:#7c6f9f;--tutor-success:#99d1a0;--tutor-error:#f38ba8;--tutor-warning:#c9a84c;--tutor-heading:#d9c9a0;--tutor-neutral-bg:#282828;--tutor-dark-bg:#3c3836;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--tutor-text);display:flex;flex-direction:column;align-items:center;padding:2rem}.typing-tutor-header{text-align:center;margin-bottom:2rem}.typing-tutor-header h1{color:var(--tutor-heading);font-size:2.5rem;margin-bottom:1rem}.tab-bar{display:flex;gap:.25rem;justify-content:center;border-bottom:1px solid var(--tutor-dimmed);padding-bottom:0}.tab-btn{padding:.6rem 1.25rem;font-size:1rem;border:none;border-bottom:2px solid transparent;background:transparent;color:var(--tutor-muted);cursor:pointer;transition:all .2s 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ease}.keyboard-btn:hover,.keyboard-btn.active{background:var(--tutor-secondary);color:var(--tutor-neutral-bg)}.show-keyboard-btn{position:fixed;bottom:.75rem;left:50%;transform:translate(-50%);z-index:100;padding:.4rem 1rem;font-size:.8rem;border:1px solid var(--tutor-secondary);background:var(--tutor-bg);color:var(--tutor-secondary);border-radius:6px;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px #0006}.show-keyboard-btn:hover{background:var(--tutor-secondary);color:var(--tutor-neutral-bg)}.stats-container{display:flex;gap:3rem;margin-bottom:2rem}.stat{text-align:center}.stat-value{font-size:2.5rem;font-weight:700;color:var(--tutor-secondary)}.stat-label{font-size:.9rem;color:var(--tutor-muted);text-transform:uppercase;letter-spacing:1px}.main-container{width:100%;max-width:900px;padding-bottom:320px}.lesson-selector{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:2rem;margin-bottom:1rem;justify-content:center}.letter-mastery{display:flex;flex-wrap:wrap;gap:.35rem;align-items:center;justify-content:center;margin-bottom:1.5rem}.letter-indicator{width:28px;height:28px;border-radius:4px;display:flex;align-items:center;justify-content:center;font-family:Consolas,Monaco,monospace;font-size:.8rem;font-weight:700;transition:all .3s ease;text-transform:uppercase}.letter-indicator.locked{background:var(--tutor-dark-bg);color:var(--tutor-dimmed)}.letter-indicator.new{background:#f38ba833;color:var(--tutor-error);border:1px solid var(--tutor-error)}.letter-indicator.learning{background:#d9c9a033;color:var(--tutor-heading);border:1px solid var(--tutor-heading)}.letter-indicator.confident{background:#99d1a033;color:var(--tutor-success);border:1px solid var(--tutor-success)}.mastery-reset-btn{height:28px;padding:0 6px;font-size:.7rem;border:1px solid var(--tutor-dimmed);background:var(--tutor-dark-bg);color:var(--tutor-dimmed);border-radius:4px;cursor:pointer;transition:all .2s ease;margin-top:.625rem}.mastery-reset-btn:hover{border-color:var(--tutor-error);color:var(--tutor-error)}.unlock-notification{display:flex;flex-direction:column;align-items:center;gap:.5rem;margin-top:1rem;animation:unlock-reveal .6s ease-out}.unlock-letter{width:48px;height:48px;background:#99d1a033;border:2px solid var(--tutor-success);border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:Consolas,Monaco,monospace;font-size:1.5rem;font-weight:700;color:var(--tutor-success);box-shadow:0 0 20px #99d1a04d}.unlock-text{color:var(--tutor-success);font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:1px}@keyframes unlock-reveal{0%{opacity:0;transform:scale(.5)}50%{transform:scale(1.1)}to{opacity:1;transform:scale(1)}}.challenge-notification{display:flex;flex-direction:column;align-items:center;gap:.5rem;margin-top:1rem;animation:unlock-reveal .6s ease-out}.challenge-letter{width:48px;height:48px;background:#d9c9a033;border:2px solid var(--tutor-heading);border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:Consolas,Monaco,monospace;font-size:1.5rem;font-weight:700;color:var(--tutor-heading);box-shadow:0 0 20px #d9c9a04d}.challenge-text{color:var(--tutor-heading);font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:1px}.challenge-retry{color:var(--tutor-error);font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:1px}.notes-controls{display:none;flex-direction:column;align-items:center;gap:1rem;margin-bottom:1.5rem}.notes-controls.visible{display:flex}.category-select{padding:.75rem 2.5rem .75rem 1rem;font-size:1rem;border:2px solid var(--tutor-secondary);background:var(--tutor-bg);color:var(--tutor-text);border-radius:8px;min-width:200px;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23a0a0a0' stroke-width='2' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center}.category-select:focus{outline:none;border-color:var(--tutor-accent)}.notes-list{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;max-width:100%}.note-btn{padding:.5rem 1rem;font-size:.9rem;border:1px solid var(--tutor-secondary);background:transparent;color:var(--tutor-text);border-radius:6px;cursor:pointer;transition:all .2s ease;position:relative;max-width:250px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.note-btn:hover,.note-btn.active{background:var(--tutor-secondary);color:var(--tutor-neutral-bg)}.typing-area{background:var(--tutor-bg);border-radius:12px;padding:2rem;margin-bottom:1.5rem;min-height:200px;position:relative}.typing-text{font-family:Consolas,Monaco,monospace;font-size:1.4rem;line-height:2;word-wrap:break-word}.word{white-space:nowrap;display:inline}.char{transition:color .1s ease}.char.current{background:var(--tutor-heading);color:var(--tutor-neutral-bg);border-radius:2px}.char.correct{color:var(--tutor-text)}.char.incorrect{color:var(--tutor-error);text-decoration:underline}.char.pending{color:var(--syntax-color, #808080)}.char.wildcard.pending,.char.wildcard.correct{color:var(--tutor-success)}.char.code-block{background:#1e1e1e99;border-radius:1px}.char.code-block.pending{color:color-mix(in srgb,var(--syntax-color, #808080) 40%,transparent)}.char.code-block.correct{color:var(--syntax-color, var(--tutor-success))}.char.code-block.current{background:var(--tutor-heading)}.progress-bar{height:4px;background:#404040;border-radius:2px;margin-bottom:1rem;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--tutor-secondary),var(--tutor-accent));border-radius:2px;transition:width .3s 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forwards}.points-popup.positive{color:var(--tutor-success)}.points-popup.negative{color:var(--tutor-error)}.points-popup.wildcard{color:var(--tutor-warning)}@keyframes points-float{0%{transform:translateY(0);opacity:1}to{transform:translateY(-30px);opacity:0}}.streak-word{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:1.8rem;font-weight:700;color:var(--tutor-heading);pointer-events:none;z-index:10;animation:streak-pop .8s ease-out forwards}@keyframes streak-pop{0%{transform:translate(-50%,-50%) scale(0);opacity:0}30%{transform:translate(-50%,-50%) scale(1.2);opacity:1}70%{opacity:1}to{transform:translate(-50%,-50%) scale(1);opacity:0}}.speed-bonus-reveal{display:inline-block;animation:bonus-slam .4s cubic-bezier(.34,1.56,.64,1) forwards}@keyframes bonus-slam{0%{transform:scale(1.5);opacity:0}60%{transform:scale(.95);opacity:1}to{transform:scale(1);opacity:1}}@media(max-width:600px){.typing-tutor-container{padding:1rem}.typing-tutor-header h1{font-size:1.8rem}.typing-text{font-size:1.1rem}.stats-container{gap:1.5rem}.stat-value{font-size:1.8rem}}