:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#213547;background-color:#fff;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}#root{width:100%;margin:0;padding:0;text-align:left}.app-container{display:flex;min-height:100vh;width:100vw;background-color:#f5f7fa}.sidebar{width:280px;background-color:#1a237e;color:#fff;display:flex;flex-direction:column;padding:1rem;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto;z-index:1000;transition:width .3s ease-in-out,padding .3s ease-in-out}.sidebar.closed{width:0;padding:0;overflow:hidden}.logo-container{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.logo{font-size:1.5rem;font-weight:700;cursor:pointer}.close-btn{background:none;border:none;font-size:2rem;color:#fff;cursor:pointer}.mobile-header{display:none;background-color:#1a237e;color:#fff;padding:15px;align-items:center;gap:15px;position:sticky;top:0;z-index:900}.menu-btn{background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}.overlay{display:none;position:fixed;inset:0;background:#00000080;z-index:950}@media(max-width:768px){.app-container{flex-direction:column}.sidebar{position:fixed;top:0;left:0;bottom:0;transform:translate(-100%);box-shadow:2px 0 10px #0000004d}.sidebar.open{transform:translate(0)}.mobile-header{display:flex}.overlay,.close-btn{display:block}}.desktop-menu-btn{display:none}@media(min-width:769px){.desktop-menu-btn{display:block;position:absolute;top:15px;left:15px;background:#1a237e;color:#fff;border:none;font-size:1.5rem;padding:5px 10px;border-radius:5px;cursor:pointer;z-index:100}}.nav-links{list-style:none;padding:0}.nav-links li{padding:12px;cursor:pointer;border-radius:4px;margin-bottom:5px;transition:background .2s;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-links li:hover:not(.disabled){background-color:#ffffff1a}.nav-links li.active{background-color:#3949ab;font-weight:700;border-left:4px solid #ffca28}.nav-links li.disabled{opacity:.5;cursor:not-allowed}.main-content{flex:1;padding:2rem;overflow-y:auto;color:#333}h2{color:#1a237e}.tab-bar{display:flex;gap:1rem;margin-bottom:2rem;border-bottom:2px solid #ddd;padding-bottom:.5rem}.tab-bar button{background:none;border:none;font-size:1rem;padding:.5rem 1rem;cursor:pointer;color:#000;font-weight:700}.tab-bar button.active-tab{color:#1a237e;border-bottom:3px solid #1a237e}