:root{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--text-primary: #1a1a1a;--text-secondary: #4a4a4a;--text-muted: #9a9a9a;--color-correct: #22c55e;--color-error: #ef4444;--color-error-bg: rgba(239, 68, 68, .15);--color-cursor: #3b82f6;--color-interactive: #3b82f6;--color-interactive-hover: #2563eb;--color-focus: rgba(59, 130, 246, .5);--color-border: #e5e5e5;--font-mono: "SF Mono", "Fira Code", "Consolas", "Monaco", monospace;--transition-theme: background-color .2s ease, color .2s ease, border-color .2s ease}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--text-primary: #1a1a1a;--text-secondary: #4a4a4a;--text-muted: #9a9a9a;--color-correct: #22c55e;--color-error: #ef4444;--color-error-bg: rgba(239, 68, 68, .15);--color-cursor: #3b82f6;--color-interactive: #3b82f6;--color-interactive-hover: #2563eb;--color-focus: rgba(59, 130, 246, .5);--color-border: #e5e5e5}[data-theme=dark]{--bg-primary: #121212;--bg-secondary: #1e1e1e;--text-primary: #f5f5f5;--text-secondary: #b0b0b0;--text-muted: #6b6b6b;--color-correct: #4ade80;--color-error: #f87171;--color-error-bg: rgba(248, 113, 113, .15);--color-cursor: #60a5fa;--color-interactive: #60a5fa;--color-interactive-hover: #93c5fd;--color-focus: rgba(96, 165, 250, .5);--color-border: #333333}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);transition:var(--transition-theme);min-height:100vh}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.skip-link{position:absolute;top:-100%;left:50%;transform:translate(-50%);background-color:var(--color-interactive);color:#fff;padding:.75rem 1.5rem;border-radius:0 0 6px 6px;text-decoration:none;font-weight:500;z-index:1000;transition:top .2s ease}.skip-link:focus{top:0;outline:2px solid var(--color-focus);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.mono{font-family:var(--font-mono)}.char-untyped{color:var(--text-muted)}.char-correct{color:var(--color-correct)}.char-incorrect{color:var(--color-error);background-color:var(--color-error-bg);border-radius:2px}.char-current{border-left:2px solid var(--color-cursor);margin-left:-1px;padding-left:1px;animation:cursor-blink 1s step-end infinite}@keyframes cursor-blink{0%,to{border-color:var(--color-cursor)}50%{border-color:transparent}}button{background-color:var(--color-interactive);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:6px;font-size:1rem;cursor:pointer;transition:background-color .15s ease}button:hover{background-color:var(--color-interactive-hover)}button:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.theme-toggle{background:transparent;color:var(--text-secondary);padding:.5rem;border-radius:4px;display:flex;align-items:center;justify-content:center}.theme-toggle:hover{background-color:var(--bg-secondary);color:var(--text-primary)}#app{max-width:800px;margin:0 auto;padding:2rem}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--color-border)}.header-controls{display:flex;align-items:center;gap:.75rem}.connection-status{display:none;font-size:.75rem;padding:.25rem .5rem;border-radius:4px;background-color:var(--color-error-bg);color:var(--color-error);font-weight:500}.connection-status.offline{display:inline-block}.header h1{margin:0;font-size:1.5rem;font-weight:600}.main{padding:1rem 0}.typing-demo h2{margin-top:0;font-size:1.25rem;color:var(--text-primary)}.description{color:var(--text-secondary);line-height:1.6;margin-bottom:2rem}.prompt-container{background-color:var(--bg-secondary);border:1px solid var(--color-border);border-radius:8px;padding:1.5rem;font-size:1.25rem;line-height:1.8;margin-bottom:2rem}.stats{display:flex;gap:2rem;margin-bottom:2rem}.stat{display:flex;flex-direction:column;align-items:center}.stat-value{font-size:2rem;font-weight:700;color:var(--color-interactive)}.stat-label{font-size:.875rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.actions{display:flex;gap:1rem}.icon-sun,.icon-moon{font-size:1.25rem}.screen{transition:opacity .2s ease}.screen.hidden{display:none}.typing-interface{width:100%}.typing-interface .prompt-container{cursor:text;position:relative;min-height:150px;max-height:300px;overflow-y:auto}.typing-interface .prompt-display{word-wrap:break-word;white-space:pre-wrap}.typing-interface .hidden-input{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}.typing-interface .prompt-container:focus-within{outline:2px solid var(--color-focus);outline-offset:2px}.results{display:flex;gap:3rem;justify-content:center;margin:2rem 0}.result{display:flex;flex-direction:column;align-items:center}.result-value{font-size:3rem;font-weight:700;color:var(--color-interactive)}.result-label{font-size:1rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-top:.5rem}.btn-secondary{background-color:transparent;color:var(--text-secondary);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--bg-secondary);color:var(--text-primary)}@media(max-width:600px){.results{gap:1.5rem}.result-value{font-size:2rem}.stats{gap:1rem}.stat-value{font-size:1.5rem}}.btn-small{padding:.375rem .75rem;font-size:.875rem}#login-btn.hidden{display:none}.user-menu{display:flex;align-items:center;gap:.75rem}.user-menu.hidden{display:none}.user-name{font-size:.875rem;color:var(--text-secondary);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.login-modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background-color:var(--bg-primary);border:1px solid var(--color-border);border-radius:12px;padding:0;max-width:400px;width:90%;box-shadow:0 4px 24px #00000026}.login-modal::backdrop{background-color:#00000080}.login-content{padding:2rem;position:relative}.login-close{position:absolute;top:1rem;right:1rem;background:transparent;color:var(--text-muted);padding:.25rem .5rem;font-size:1.5rem;line-height:1}.login-close:hover{color:var(--text-primary);background:transparent}.login-modal h2{margin:0 0 .5rem;font-size:1.5rem;text-align:center}.login-description{color:var(--text-secondary);text-align:center;margin:0 0 1.5rem;font-size:.875rem}.btn-google{width:100%;display:flex;align-items:center;justify-content:center;gap:.75rem;background-color:#fff;color:#333;border:1px solid var(--color-border);font-weight:500;padding:.75rem 1rem}.btn-google:hover{background-color:#f5f5f5}[data-theme=dark] .btn-google{background-color:var(--bg-secondary);color:var(--text-primary);border-color:var(--color-border)}[data-theme=dark] .btn-google:hover{background-color:#2a2a2a}.google-icon{flex-shrink:0}.login-divider{display:flex;align-items:center;margin:1.5rem 0;color:var(--text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}.login-divider:before,.login-divider:after{content:"";flex:1;height:1px;background-color:var(--color-border)}.login-divider span{padding:0 1rem}.magic-link-form{display:flex;flex-direction:column;gap:.75rem}.magic-link-form input[type=email]{width:100%;padding:.75rem 1rem;font-size:1rem;border:1px solid var(--color-border);border-radius:6px;background-color:var(--bg-primary);color:var(--text-primary);transition:border-color .15s ease}.magic-link-form input[type=email]:focus{border-color:var(--color-interactive);outline:none}.magic-link-form input[type=email]::placeholder{color:var(--text-muted)}.btn-primary{background-color:var(--color-interactive);color:#fff}.btn-primary:hover{background-color:var(--color-interactive-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.form-help{font-size:.75rem;color:var(--text-muted);margin:0;text-align:center}.login-status{margin-top:1rem;padding:.75rem 1rem;border-radius:6px;font-size:.875rem;text-align:center}.login-status.hidden{display:none}.login-status.success{background-color:#22c55e1a;color:var(--color-correct);border:1px solid var(--color-correct)}.login-status.error{background-color:var(--color-error-bg);color:var(--color-error);border:1px solid var(--color-error)}.login-status.loading{background-color:var(--bg-secondary);color:var(--text-secondary);border:1px solid var(--color-border)}