* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #010102;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 20px;
        }
        
        .login-container {
            background: white;
            padding: 50px 40px;
            border-radius: 15px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            width: 100%;
            max-width: 400px;
            animation: slideUp 0.5s ease-out;
        }
        
        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .logo-section {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .logo-section img {
            max-width: 80px;
            height: auto;
            margin-bottom: 15px;
            border-radius: 8px;
        }
        
        .logo-section h1 {
            color: #227fd7;
            font-size: 1.8rem;
            margin-bottom: 5px;
            font-weight: 700;
        }
        
        .logo-section p {
            color: #999;
            font-size: 0.9rem;
            font-weight: 300;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        label {
            display: block;
            color: #333;
            font-weight: 600;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }
        
        input[type="text"],
        input[type="password"] {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s, box-shadow 0.3s;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        input[type="text"]:focus,
        input[type="password"]:focus {
            outline: none;
            border-color: #227fd7;
            box-shadow: 0 0 0 3px rgba(34, 127, 215, 0.1);
        }
        
        .btn-login {
            width: 100%;
            padding: 12px;
            background: #227fd7;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
            margin-top: 10px;
        }
        
        .btn-login:hover {
            background: #1a63a8;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(34, 127, 215, 0.4);
        }
        
        .btn-login:active {
            transform: translateY(0);
        }
        
        .alert {
            padding: 12px 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            font-size: 0.95rem;
            animation: slideUp 0.3s ease-out;
        }
        
        .alert-error {
            background-color: #fee;
            color: #c33;
            border-left: 4px solid #c33;
        }
        
        .alert-success {
            background-color: #efe;
            color: #3c3;
            border-left: 4px solid #3c3;
        }
        
        .signin-info {
            text-align: center;
            margin-top: 25px;
            padding-top: 20px;
            border-top: 1px solid #e0e0e0;
            color: #999;
            font-size: 0.9rem;
        }
        
        .signin-info strong {
            color: #333;
            display: block;
            margin-bottom: 5px;
        }
        
        .signin-info code {
            background: #f5f5f5;
            padding: 2px 6px;
            border-radius: 4px;
            font-family: 'Courier New', monospace;
            color: #333;
        }