:root{--bg-color: #212529;--text-color: #6c757d;--highlight-color: #f8f9fa;--error-color: #dc3545;--cursor-color: #f8f9fa;--subtle-color: #495057;--font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden}#app{width:100%;max-width:900px;padding:2rem;display:flex;flex-direction:column;gap:2rem}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.brand{font-size:1.5rem;font-weight:700;color:var(--highlight-color);display:flex;align-items:center;gap:.5rem}.controls{display:flex;gap:1rem;align-items:center}select{background:transparent;color:var(--text-color);border:1px solid var(--subtle-color);padding:.5rem 1rem;border-radius:4px;font-family:inherit;cursor:pointer;transition:all .2s}select:hover{border-color:var(--highlight-color);color:var(--highlight-color)}.source-link{display:flex;align-items:center;gap:.5rem;color:var(--subtle-color);text-decoration:none;font-size:.9rem;transition:color .2s;border:1px solid transparent;padding:.5rem 1rem;border-radius:4px}.source-link:hover{color:var(--highlight-color);border-color:var(--subtle-color)}.typing-container{position:relative;font-family:var(--font-mono);font-size:1.2rem;line-height:1.6;min-height:300px;outline:none}.focus-overlay{position:absolute;top:0;left:0;width:100%;height:100%;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:10;transition:opacity .2s;cursor:pointer;color:var(--highlight-color);font-weight:500}.focus-overlay.hidden{opacity:0;pointer-events:none}.code-area{white-space:pre-wrap;word-break:break-all;-webkit-user-select:none;user-select:none}.char{position:relative;transition:color .1s}.char.correct{color:var(--highlight-color)}.char.incorrect{color:var(--error-color);background-color:#dc354533;border-radius:2px}.char.active:after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background-color:var(--cursor-color);animation:blink 1s infinite}.char.active:empty:after{width:1ch}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.stats-bar{display:flex;justify-content:space-between;align-items:center;margin-top:1rem;font-size:1rem}.timer{font-variant-numeric:tabular-nums;color:var(--highlight-color)}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;display:flex;justify-content:center;align-items:center;opacity:0;pointer-events:none;transition:opacity .3s;z-index:100}.modal-overlay.visible{opacity:1;pointer-events:auto}.modal{background:var(--bg-color);padding:2rem;border-radius:8px;border:1px solid var(--subtle-color);text-align:center;min-width:300px;box-shadow:0 10px 30px #00000080}.modal h2{color:var(--highlight-color);margin-top:0}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:2rem 0}.stat-item .label{font-size:.9rem;color:var(--text-color);display:block}.stat-item .value{font-size:2rem;font-weight:700;color:var(--highlight-color)}.btn{background:var(--highlight-color);color:var(--bg-color);border:none;padding:.8rem 1.5rem;font-size:1rem;border-radius:4px;cursor:pointer;font-weight:600;transition:transform .1s}.btn:hover{transform:scale(1.05)}.btn:active{transform:scale(.95)}