:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#213547;background-color:#f5f5f5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{width:100%;height:100vh}.layout-container{display:flex;flex-direction:column;height:100vh;overflow:hidden}.top-nav{height:60px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 20px;box-shadow:0 2px 4px #0000001a;z-index:1000}.top-nav-left{display:flex;align-items:center;gap:15px}.sidebar-toggle{background:#fff3;border:none;color:#fff;font-size:1.5rem;padding:8px 12px;cursor:pointer;border-radius:6px;transition:background 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16px;width:100%;text-align:left;background:none;color:#555;text-decoration:none;font-size:.9rem;transition:background .2s;border:none;cursor:pointer}.user-menu-item:hover{background:#f5f5f5;color:#667eea}.user-menu-item.logout{color:#c33}.user-menu-item.logout:hover{background:#fee;color:#c33}.main-content{flex:1;overflow-y:auto;background:#f5f5f5;padding:30px}.content-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 8px #00000014;margin-bottom:20px}.content-card h2{font-size:1.8rem;color:#333;margin-bottom:20px}input[type=text],input[type=email],input[type=password],textarea,select{width:100%;padding:12px;border:1px solid #ddd;border-radius:6px;font-size:.95rem;transition:border-color .2s}input:focus,textarea:focus,select:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}button[type=submit],.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:12px 24px;border-radius:6px;cursor:pointer;font-size:1rem;font-weight:500;transition:transform .2s,box-shadow .2s}button[type=submit]:hover,.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}button[type=submit]:active,.btn-primary:active{transform:translateY(0)}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.auth-card{background:#fff;border-radius:16px;padding:40px;box-shadow:0 8px 24px #00000026;max-width:400px;width:100%}.auth-card h2{color:#333;margin-bottom:24px;text-align:center}.error-message{background:#fee;color:#c33;padding:12px;border-radius:6px;margin-bottom:16px;border-left:4px solid #c33}.success-message{background:#efe;color:#3c3;padding:12px;border-radius:6px;margin-bottom:16px;border-left:4px solid #3c3}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;padding:20px}.modal-content{background:#fff;border-radius:12px;max-width:700px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 8px 32px #0003}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid #e0e0e0}.modal-header h2{margin:0;font-size:1.5rem;color:#333}.modal-close{background:none;border:none;font-size:2rem;color:#999;cursor:pointer;line-height:1;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .2s}.modal-close:hover{background:#f5f5f5;color:#333}.modal-content form{padding:20px}button{border-radius:6px;border:none;padding:10px 20px;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s}button:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#f5f5f5;color:#333}.btn-secondary:hover:not(:disabled){background:#e0e0e0}@media (max-width: 768px){.sidebar{position:fixed;left:0;top:60px;height:calc(100vh - 60px);z-index:999;width:250px}.sidebar.closed{width:0}.main-content{padding:15px}.top-nav{padding:0 15px}.app-title{font-size:1.2rem}.modal-content{max-width:100%}}