:root{--color-correct: #22c55e;--color-error: #ef4444;--color-current: #3b82f6;--color-pending: #6b7280;--color-bg: #0f172a;--color-surface: #1e293b;--color-surface-hover: #334155;--color-border: #334155;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-danger: #ef4444;--color-danger-hover: #dc2626;--radius: 8px;--radius-lg: 12px;--shadow: 0 1px 3px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .5)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--color-bg);color:var(--color-text);min-height:100vh}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{padding:1rem 2rem;background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100}.logo{display:flex;align-items:center;gap:.75rem}.logo-icon{font-size:1.5rem}.logo h1{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-actions{display:flex;gap:.75rem;align-items:center}.app-main{flex:1;padding:2rem}.main-content{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 320px;gap:2rem}.app-footer{padding:1rem;text-align:center;color:var(--color-text-muted);font-size:.875rem;border-top:1px solid var(--color-border)}.btn-primary,.btn-secondary,.btn-danger,.btn-header{padding:.5rem 1rem;border-radius:var(--radius);border:none;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface-hover);color:var(--color-text)}.btn-secondary:hover{background:var(--color-border)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{background:var(--color-danger-hover)}.btn-header{background:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-header:hover{background:var(--color-surface-hover)}.btn-icon{background:transparent;border:none;cursor:pointer;font-size:.875rem;padding:.25rem;opacity:.7;transition:opacity .2s}.btn-icon:hover{opacity:1}.btn-close{background:transparent;border:none;color:var(--color-text-muted);font-size:1.5rem;cursor:pointer;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);transition:all .2s}.btn-close:hover{background:var(--color-surface-hover);color:var(--color-text)}.typing-section{background:var(--color-surface);border-radius:var(--radius-lg);padding:2rem;border:1px solid var(--color-border)}.typing-area{position:relative}.target-text{font-family:SF Mono,Monaco,Cascadia Code,monospace;font-size:1.25rem;line-height:2;margin-bottom:1.5rem;min-height:200px;max-height:400px;overflow-y:auto;padding:1rem;background:var(--color-bg);border-radius:var(--radius)}.line-container{margin-bottom:1rem}.line-target{margin-bottom:.5rem;white-space:pre-wrap;word-break:break-all}.line-input{width:100%;padding:.75rem 1rem;font-size:1rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);font-family:SF Mono,Monaco,Cascadia Code,monospace;transition:all .2s}.line-input:focus{outline:none;border-color:var(--color-primary);background:var(--color-surface)}.line-input:disabled{opacity:.5;cursor:not-allowed}.line-input.active{border-color:var(--color-primary);box-shadow:0 0 0 2px #3b82f633}.char{display:inline;transition:all .1s}.char-correct{color:var(--color-correct)}.char-error{color:var(--color-error);text-decoration:underline}.char-current{background:var(--color-current);color:#fff;border-radius:2px;animation:blink 1s infinite}.char-pending{color:var(--color-pending)}.char-skipped{color:var(--color-text-muted);opacity:.4}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:.5}}.no-article{text-align:center;padding:3rem;color:var(--color-text-muted)}.result-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f172af2;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.result-content{text-align:center;padding:2rem}.result-content h3{font-size:1.5rem;margin-bottom:1.5rem}.result-stats{display:flex;gap:2rem;justify-content:center;margin-bottom:2rem}.result-stat{display:flex;flex-direction:column;align-items:center}.result-stat .stat-value{font-size:2rem;font-weight:700;color:var(--color-primary)}.result-stat .stat-label{font-size:.875rem;color:var(--color-text-muted)}.sidebar-section{display:flex;flex-direction:column;gap:1.5rem}.stats-panel{background:var(--color-surface);border-radius:var(--radius-lg);padding:1.5rem;border:1px solid var(--color-border)}.stat-card{display:flex;align-items:center;gap:1rem;padding:.75rem 0;border-bottom:1px solid var(--color-border)}.stat-card:last-of-type{border-bottom:none}.stat-icon{font-size:1.5rem;width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center;background:var(--color-bg);border-radius:var(--radius)}.stat-info{flex:1;display:flex;justify-content:space-between;align-items:center}.stat-label{color:var(--color-text-muted);font-size:.875rem}.stat-value{font-size:1.25rem;font-weight:600}.progress-bar{height:6px;background:var(--color-bg);border-radius:3px;margin-top:1rem;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),#60a5fa);border-radius:3px;transition:width .3s ease}.article-list{background:var(--color-surface);border-radius:var(--radius-lg);padding:1.5rem;border:1px solid var(--color-border);flex:1;min-height:300px}.article-list h3{margin-bottom:1rem;font-size:1rem;color:var(--color-text-muted)}.article-list ul{list-style:none}.article-list li{display:flex;align-items:center;justify-content:space-between;padding:.75rem;border-radius:var(--radius);cursor:pointer;transition:all .2s;margin-bottom:.25rem}.article-list li:hover{background:var(--color-surface-hover)}.article-list li.active{background:var(--color-primary)}.article-list li.active .article-title{color:#fff}.article-title{font-size:.875rem;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;margin-right:.5rem}.article-actions{display:flex;gap:.25rem;opacity:0;transition:opacity .2s}.article-list li:hover .article-actions,.article-list li.active .article-actions{opacity:1}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:var(--color-surface);border-radius:var(--radius-lg);width:100%;max-width:500px;max-height:90vh;overflow:hidden;box-shadow:var(--shadow-lg)}.modal-content.modal-large{max-width:700px}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--color-border)}.modal-header h2{font-size:1.25rem;font-weight:600}.modal-content form{padding:1.5rem}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-size:.875rem;color:var(--color-text-muted)}.form-group input,.form-group textarea{width:100%;padding:.75rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);font-size:.875rem;font-family:inherit}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-primary)}.modal-actions{display:flex;justify-content:flex-end;gap:.75rem;padding:1rem 1.5rem;border-top:1px solid var(--color-border)}.history-content{max-height:400px;overflow-y:auto}.history-table{width:100%;border-collapse:collapse;font-size:.875rem}.history-table th,.history-table td{padding:.75rem;text-align:left;border-bottom:1px solid var(--color-border)}.history-table th{color:var(--color-text-muted);font-weight:500;position:sticky;top:0;background:var(--color-surface)}.history-table td{color:var(--color-text)}.history-table tr:hover td{background:var(--color-surface-hover)}.article-cell{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.wpm-cell{font-weight:600;color:var(--color-primary)}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:1rem}.spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading,.empty-state{text-align:center;padding:2rem;color:var(--color-text-muted)}@media (max-width: 900px){.main-content{grid-template-columns:1fr}.sidebar-section{order:-1}.stats-panel{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem}.stat-card{border-bottom:none;border-right:1px solid var(--color-border);padding:.5rem}.stat-card:last-of-type{border-right:none}.progress-bar{grid-column:1 / -1}.target-text{font-size:1.1rem}}@media (max-width: 600px){.app-header{padding:1rem;flex-direction:column;gap:1rem;align-items:stretch}.header-actions{justify-content:center}.app-main,.typing-section{padding:1rem}.target-text{font-size:1rem;min-height:150px}.result-stats{gap:1rem;flex-wrap:wrap}.history-content{max-height:300px}.history-table{font-size:.75rem}.history-table th,.history-table td{padding:.5rem}.article-cell{max-width:80px}}