:root{--color-primary: #1a73e8;--color-danger: #d32f2f;--color-warning: #f57c00;--color-success: #388e3c;--color-bg: #ffffff;--color-bg-secondary: #f5f5f5;--color-text: #202124;--color-text-secondary: #5f6368;--color-border: #dadce0}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:var(--color-text);background-color:var(--color-bg);padding:2rem;max-width:1200px;margin:0 auto}header{border-bottom:2px solid var(--color-primary);padding-bottom:1.5rem;margin-bottom:2rem}h1{font-size:2rem;color:var(--color-primary);margin-bottom:.5rem}h2{font-size:1.5rem;margin-top:2rem;margin-bottom:1rem;color:var(--color-text)}h3{font-size:1.25rem;margin-top:1.5rem;margin-bottom:.75rem}nav{background-color:var(--color-bg-secondary);padding:1.5rem;border-radius:8px;margin-bottom:2rem}nav ul{list-style:none;columns:1;column-gap:2rem;break-inside:avoid-column}nav li{padding:.5rem 0;break-inside:avoid}nav a{color:var(--color-primary);text-decoration:none;font-weight:500}nav a:hover{text-decoration:underline}section{margin-bottom:3rem}.warning{background-color:#fff3e0;border-left:4px solid var(--color-warning);padding:1rem;margin:1rem 0;border-radius:4px}.warning ul{padding-left:1em}.error{background-color:#ffebee;border-left:4px solid var(--color-danger);padding:1rem;margin:1rem 0;border-radius:4px}.error ul{padding-left:1em}.success{background-color:#e8f5e9;border-left:4px solid var(--color-success);padding:1rem;margin:1rem 0;border-radius:4px}.success ul{padding-left:1em}.info{background-color:#e3f2fd;border-left:4px solid var(--color-primary);padding:1rem;margin:1rem 0;border-radius:4px}.info ul{padding-left:1em}code{background-color:var(--color-bg-secondary);padding:.2rem .4rem;border-radius:3px;font-family:Consolas,Monaco,Courier New,monospace;font-size:.9em}pre{background-color:var(--color-bg-secondary);padding:1rem;border-radius:4px;overflow-x:auto;margin:1rem 0}pre code{background-color:transparent;padding:0}button{background-color:var(--color-primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:4px;font-size:1rem;cursor:pointer;font-weight:500;transition:background-color .2s;min-height:48px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}button:hover{background-color:#1557b0}button:active{transform:translateY(1px)}button.danger{background-color:var(--color-danger)}button.danger:hover{background-color:#b71c1c}button.warning{background-color:var(--color-warning);margin:0;padding:.75rem 1.5rem;border-left:none}button.warning:hover{background-color:#e65100}button.secondary{background-color:#757575}button.secondary:hover{background-color:#616161}.demo-container{border:1px solid var(--color-border);border-radius:8px;padding:1.5rem;margin:1.5rem 0}.controls{display:flex;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap}.output{background-color:#1e1e1e;color:#d4d4d4;padding:1rem;border-radius:4px;font-family:Consolas,Monaco,Courier New,monospace;font-size:.9em;max-height:400px;overflow-y:auto;white-space:pre-wrap;word-break:break-all}.metric{display:inline-block;padding:.5rem 1rem;border-radius:4px;font-weight:500;margin:.25rem}.metric.good{background-color:#e8f5e9;color:var(--color-success)}.metric.needs-improvement{background-color:#fff3e0;color:var(--color-warning)}.metric.poor{background-color:#ffebee;color:var(--color-danger)}footer{margin-top:4rem;padding-top:2rem;border-top:1px solid var(--color-border);text-align:center;color:var(--color-text-secondary);font-size:.9rem}@media (min-width: 768px){nav ul{columns:2}}@media (min-width: 1024px){nav ul{columns:3}}@media (max-width: 767px){body{padding:1rem}h1{font-size:1.5rem}nav ul{grid-template-columns:1fr}}