:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;background-color:#f5f5f5;color:#213547}body{margin:0;min-width:320px;min-height:100vh}.layout{display:flex;flex-direction:column;min-height:100vh}nav{background:#fff;padding:1rem 2rem;box-shadow:0 2px 4px #0000001a;display:flex;align-items:center;gap:2rem}nav h1{margin:0;font-size:1.25rem;color:#333}nav a{text-decoration:none;color:#666;font-weight:500;padding:.5rem 1rem;border-radius:4px;transition:all .2s}nav a:hover{background:#f0f0f0;color:#333}main{flex:1}.loading{display:flex;justify-content:center;align-items:center;height:200px;font-size:1.2rem;color:#666}