:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--sidebar-width: 240px;--bg-color: #0f0f0f;--sidebar-bg: #1e1e1e;--text-color: #f1f1f1;--accent-color: #3ea6ff;--border-color: #333}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);font-family:Inter,system-ui,-apple-system,sans-serif}.layout{display:flex;height:100vh}.sidebar{width:var(--sidebar-width);background-color:var(--sidebar-bg);border-right:1px solid var(--border-color);display:flex;flex-direction:column}.sidebar .logo{padding:24px;font-size:20px;font-weight:700;color:var(--accent-color)}.sidebar nav{display:flex;flex-direction:column;padding:0 12px}.sidebar nav a{display:flex;align-items:center;gap:12px;padding:12px;text-decoration:none;color:var(--text-color);border-radius:8px;margin-bottom:4px;transition:background .2s}.sidebar nav a:hover{background-color:#ffffff0d}.sidebar nav a.active{background-color:#3ea6ff1a;color:var(--accent-color)}.content{flex:1;display:flex;flex-direction:column;overflow:hidden}.top-header{height:64px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 24px;background-color:var(--bg-color)}.page-container{flex:1;padding:24px;overflow-y:auto}.loading-screen{height:100vh;display:flex;justify-content:center;align-items:center;background-color:var(--bg-color);color:var(--text-color);font-size:24px}.logout-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-color);padding:8px 16px;border-radius:4px;cursor:pointer}.logout-btn:hover{background:#ffffff0d}h1,h2,h3{margin-top:0}.card{background-color:var(--sidebar-bg);border:1px solid var(--border-color);border-radius:12px;padding:20px;margin-bottom:24px}